CN109746985A - It is provided with the chipper and fire retardant spray method of fire retardant spray structure - Google Patents
It is provided with the chipper and fire retardant spray method of fire retardant spray structure Download PDFInfo
- Publication number
- CN109746985A CN109746985A CN201811647284.8A CN201811647284A CN109746985A CN 109746985 A CN109746985 A CN 109746985A CN 201811647284 A CN201811647284 A CN 201811647284A CN 109746985 A CN109746985 A CN 109746985A
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- China
- Prior art keywords
- fire retardant
- retardant
- flaking
- chipper
- fire
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Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 134
- 239000007921 spray Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000003860 storage Methods 0.000 claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims description 42
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000002023 wood Substances 0.000 description 10
- 239000004254 Ammonium phosphate Substances 0.000 description 8
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 8
- 235000019289 ammonium phosphates Nutrition 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 8
- 238000012797 qualification Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000004114 Ammonium polyphosphate Substances 0.000 description 6
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 6
- 229920001276 ammonium polyphosphate Polymers 0.000 description 6
- 229910021538 borax Inorganic materials 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 239000004328 sodium tetraborate Substances 0.000 description 6
- 235000010339 sodium tetraborate Nutrition 0.000 description 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 5
- 235000011130 ammonium sulphate Nutrition 0.000 description 5
- 239000011093 chipboard Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000001488 sodium phosphate Substances 0.000 description 5
- 229910000162 sodium phosphate Inorganic materials 0.000 description 5
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- GEHMBYLTCISYNY-UHFFFAOYSA-N Ammonium sulfamate Chemical compound [NH4+].NS([O-])(=O)=O GEHMBYLTCISYNY-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- -1 poly- phosphorus biguanides Chemical class 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- LWFBRHSTNWMMGN-UHFFFAOYSA-N 4-phenylpyrrolidin-1-ium-2-carboxylic acid;chloride Chemical compound Cl.C1NC(C(=O)O)CC1C1=CC=CC=C1 LWFBRHSTNWMMGN-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000219000 Populus Species 0.000 description 2
- LNEUSAPFBRDCPM-UHFFFAOYSA-N carbamimidoylazanium;sulfamate Chemical compound NC(N)=N.NS(O)(=O)=O LNEUSAPFBRDCPM-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012757 flame retardant agent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229940123208 Biguanide Drugs 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 235000010338 boric acid Nutrition 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZZTURJAZCMUWEP-UHFFFAOYSA-N diaminomethylideneazanium;hydrogen sulfate Chemical compound NC(N)=N.OS(O)(=O)=O ZZTURJAZCMUWEP-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a kind of chipper for being provided with fire retardant spray structure and flaking methods.The chipper includes: knife ring, blade and spray structure；The blade is distributed on knife ring；The spray structure includes: fire retardant storage tank, spray head and conveyance conduit, and the spray head is connected by conveyance conduit with fire retardant storage tank；The quantity of the spray head is one, two or more, peripheral distribution of the spray head along the knife ring.With the chipper flaking, fire retardant is sprayed while flaking.By spraying various retardant solutions while flaking, the cooling extent of knife ring and blade can be further increased unexpectedly while obtaining excellent fire retardant coverage rate.
Description
Technical field
The invention belongs to wood processing fields, are related to timber processing machine, and in particular to one kind is provided with fire retardant spray
Spill the chipper and fire retardant spray method of structure.
Background technique
Oriented wood chipboard (OSB) is to be processed into flaking by special equipment using timber such as poplar, pines as raw material, through dry
A kind of oriented structure plate made of the techniques such as dry, sizing, orienting spreading, hot-forming.Its surface layer flaking is in longitudinal arrangement, core
Layer flaking is in transversely arranged.This criss-cross arrangement, has recombinated wood grain structure, has completely eliminated wood internal stress pair
The influence of processing, with excellent workability and moisture resistance.Be oriented structure inside OSB, non junction, it is seamless, split
Trace, whole uniformity is good, and internal bond strength is high, therefore OSB has obtained extensive development in recent years.
However, being restricted it above in the application of numerous areas since common oriented wood chipboard has combustibility.To the greatest extent
It manages existing oriented wood chipboard and usually passes through addition fire retardant improvement flame retardant property, but often complexity is very high for its technique,
Or cost is caused to remain high using expensive fire retardant, and flame retardant property is also unable to satisfy the requirement of greater security.
It is therefore desirable to oriented wood chipboard process units and production technology make improvements, to promote flaking and oriented wood chipboard
Flame retardant property, and can industrially implement to produce in batches.
Summary of the invention
The present invention provides a kind of chipper for being provided with fire retardant spray structure, the chipper include: knife ring, blade and
Spray structure；
The blade is distributed on knife ring；
The spray structure includes: fire retardant storage tank, spray head and conveyance conduit, the spray head by conveyance conduit with it is fire-retardant
Agent storage tank is connected；
The quantity of the spray head can be one, two or more.
According to an embodiment of the invention, the spray head can be arranged along the periphery of the knife ring, perfectly even it is distributed in
The periphery of the knife ring.
According to an embodiment of the invention, the blade may be uniformly distributed on knife ring.
Chipper according to the present invention, the setting angle of the blade can according to need setting, such as blade and knife ring
Angle can be selected from 24-35 degree, such as selected from 25,26,27,28,29,30,31,32,33 or 34 degree.
Chipper according to the present invention, the spray head can be 0~4cm, such as 0.5~4cm at a distance from knife ring periphery；
Illustratively, distance can be 1cm, 1.5cm, 2cm, 3cm or 4cm.
The spray angle of chipper according to the present invention, the spray head can be with angle≤90 of the cutting edge of the blade
Degree, for example, 30,45,60 or 90 degree；Preferably, the spray angle of the spray head is vertical with the cutting edge of the blade.
It will be appreciated by those skilled in the art that the quantity of the spray head can according to need setting, such as it can not surpass
20 are crossed, such as no more than 15 or 10；Illustratively, the quantity of the spray head can be 10,8,6,5,4
A, 3,2 or 1.
It will be appreciated by those skilled in the art that the quantity of the blade can according to need setting, such as it can be 10-
60, such as 20-50 piece, 30-48 piece.
Chipper according to the present invention, can further be arranged on the conveyance conduit mass flowmenter, flow sensor,
Valve (such as ball valve, gate valve) and/or pump.
Preferably, the conveyance conduit may include conveying main line and conveying branch, and the conveying branch preferably uses simultaneously
Connection mode is arranged.For example, being arranged on the conveying main line, mass flowmenter is pumped and/or gate valve, the conveying branch road are provided with
Flow sensor, ball valve and/or gate valve.
The quantity of chipper according to the present invention, the conveying branch can be identical or different with the quantity of the spray head,
Preferably, one independent conveying branch is set for each spray head.
Chipper according to the present invention, the fire retardant storage tank may include the blender of tank body and setting in the inner, institute
It states tank body and preferably keeps the temperature tank body, the blender is preferably electric mixer.
Chipper according to the present invention, the spray structure can also include fire retardant preparing tank, and the fire retardant is prepared
Tank and the fire retardant storage tank pass through piping connection.Further, the fire retardant preparing tank may include preparing tank, setting
Blender and weight transmitter disposed within.
Preferably, the bottom for preparing tank, the quantity of the weight transmitter is arranged in the weight transmitter
It can be one, two or more.For example, the quantity of the weight transmitter can be three.Further, described fire-retardant
Agent preparing tank and the fire retardant, which store up, can be set mass flowmenter, pump and/or valve on tank connected pipeline.Further,
The blender is preferably electric mixer.
Chipper according to the present invention, the fire retardant preparing tank can also pass through piping connection with water tank；Preferably,
Pump, mass flowmenter and/or valve can be set on the connecting line of the fire retardant preparing tank and water tank.
Chipper according to the present invention, the fire retardant conveyance conduit, the fire retardant preparing tank and the fire retardant store up
The material of the connecting line of the connecting line of tank, the fire retardant preparing tank and water tank all can be stainless steel material or other
Material suitable for storage.
Chipper according to the present invention, the pump can pump for impeller.
Chipper according to the present invention, the chipper further include motor.The motor band moving knife ring rotates.Preferably,
The motor, mass flowmenter, flow sensor, valve (such as ball valve, gate valve) and pump are electrically connected with PLC controller.
Further, the present invention also provides a kind of above-mentioned flaking methods, including use chipper flaking.
Preferably, the flaking method further includes spraying fire retardant while flaking.
Preferred embodiment according to the present invention, the method includes the following steps:
1) by feedstock transportation to chipper；
2) with the rotation of knife ring, blade cut raw material obtains flaking；Meanwhile by retardant solution along perpendicular to described
The direction of blade cutting edge is sprayed on the flaking, obtains fire-retardant flaking.
Preferably, the sprinkling is when the blade cut raw material, until carrying out in a period of in flaking dropping process.
Preferably, the retardant solution is also sprayed onto the blade cutting edge.
Preferably, the spray head is set, so that the range of retardant solution sprinkling can cover the flaking.
According to the method for the present invention, the timber can be selected from the timber for being suitable for preparing OSB, such as can be pine, eucalyptus
At least one of wood, poplar and paulownia etc..
According to the method for the present invention, the retardant solution can be known in the art the aqueous solution of fire retardant.As
Example, the concentration of fire retardant can be about 20-40wt%, for example, about 25-35wt% in the retardant solution；Illustratively,
The concentration of fire retardant is about 20wt%, about 30wt% in the retardant solution.
According to the method for the present invention, the fire retardant can be selected from any one of water-soluble flame retardant known in the art
It plants, two or more.For example, the fire retardant can contain ammonium polyphosphate, ammonium phosphate, ammonium sulfate, borax, sulfamic acid
In ammonium, sodium phosphate, guanylurea phosphate, Guanidine Sulfamate 99, poly- phosphorus biguanides, biphosphate guanidine, phosphoric acid hydrogen bisguanides, guanidine sulfate etc. extremely
Few one kind；Preferably, the fire retardant can be ammonium polyphosphate, the mixture of ammonium phosphate and ammonium sulfate, borax, sulfamic acid
The mixture of ammonium, sodium phosphate and ammonium phosphate, guanylurea phosphate, boric acid, borax and/or Guanidine Sulfamate 99 mixture.It is exemplary
Ground can contain ammonium polyphosphate (such as the degree of polymerization is lower than 20, such as 6,8,10 ammonium polyphosphate), ammonium phosphate in the fire retardant
And ammonium sulfate, such as mass ratio (1-3): (3-5): (such as the degree of polymerization is lower than 20, such as 6,8,10 poly- phosphorus to 1 ammonium polyphosphate
Sour ammonium), ammonium phosphate and ammonium sulfate；Illustratively, the fire retardant can contain borax, Amcide Ammate, sodium phosphate and phosphoric acid
Ammonium, such as mass ratio are borax, Amcide Ammate, sodium phosphate and the ammonium phosphate of 2:3:2:3.
According to the method for the present invention, the temperature of the retardant solution can be 0-40 DEG C, such as 10-30 DEG C, such as 20-25 DEG C.
According to the method for the present invention, the fountain height of the retardant solution can be 20-90L/min；For example, the sprinkling
Amount can be 35-85.5L/min, 35-80L/min.
Preferably, the fountain height is adjusted by adjustable speed pump；Preferably, with reading shown in flowmeter for fountain height.
According to the method for the present invention, the specification of the flaking is not particularly limited.As example, the width of the flaking can
Think 5-40mm, such as 10-30mm；Thickness can be 0.4-0.8mm, such as 0.5-0.7mm；Length can be 100-180mm,
Such as 120-160mm.
According to the method for the present invention, before spraying retardant solution, the moisture content of the flaking is 30-50wt%, such as
40-47wt%, illustratively, moisture content 45wt%, 45.5wt%.
According to the method for the present invention, after spraying retardant solution, it is molten that the moisture content of the flaking is higher than sprinkling fire retardant
The moisture content of flaking before liquid.For example, the moisture content of the flaking can be 35-55wt%, example after sprinkling retardant solution
Such as 43-50wt%, 45-48wt%.
According to the method for the present invention, fire retardant is attached on the fire-retardant flaking, the adhesion amount of fire retardant can be 1.0-
6.0wt%, such as 2.0-5.0wt%, 2.2-4.7wt%, 2.5-4.5wt%；
The adhesion amount of the fire retardant refers to that being attached to the fire retardant weight of flaking after fire retardant sprinkling accounts for over dry flaking
Weight percent, wherein the weight of the fire retardant is in terms of solid flame retardant.
According to the present invention, the attachment includes that the state on flaking surface and its inside is bound to absorption, infiltration or other modes.
Beneficial effects of the present invention:
The present invention on chipper by being arranged fire retardant spray structure, can be with using spray structure while flaking
Retardant solution is sprayed on flaking.As needed, the resulting plane of spraying range uniform fold of retardant solution can be made
Piece, fire retardant coverage rate is good, adhesion effect is excellent, can be obviously improved the flame retardant property of flaking.
Applicant surprisingly it has been found that, by spraying various retardant solutions while flaking, can unexpectedly exist
While obtaining excellent fire retardant coverage rate, the cooling extent of knife ring and blade is further increased.Under equal conditions, it compares
In the cooling water for spraying same temperature, chipper of the invention and flaking method can be such that blade temperature drop significantly improves.This is right
It is undoubtedly very favorable in the preparation process that fire-retardant flaking is implemented in industrial scale.
Also, simple process of the invention is easy, and equipment cost is low, is conducive to OSB production technology optimization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the chipper of spray structure is provided with described in the embodiment of the present invention.
Appended drawing reference: 1- knife ring, 2- blade, 3- fire retardant storage tank, 4- pressure nozzle, 5- convey main line, and 6- conveys branch,
7- mass flowmenter, 8- impeller pump, 9- flow sensor, 10- ball valve, 11- storage tank tank body, 12- blender, 13- fire retardant are matched
Tank processed, 14- tank, 15- weight transmitter, 16- water tank.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.Furthermore, it is to be understood that after having read content disclosed in this invention, ability
Field technique personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within protection defined by the present invention
Within the scope of.
Experimental method used in following embodiments is conventional method unless otherwise specified；Institute in following embodiments
Reagent, material etc., are commercially available unless otherwise specified.
The model DC-PNP of flow sensor used in embodiment, the model MJ083BY0 of impeller pump, pressure nozzle
Model W-2.0, the power of motor is 1.1kW.
Retardant solution used in embodiment 2-21 are as follows: the degree of polymerization be 6 ammonium polyphosphate, ammonium phosphate, ammonium sulfate according to
Mass ratio 1:3:1, adds water to be configured to retardant solution.
Unless otherwise indicated, percentage hereinafter refers both to weight percent.
Embodiment 1
The chipper for being provided with fire retardant spray structure as shown in Figure 1, the chipper include: knife ring 1 and are uniformly distributed
In the blade 2 on knife ring 1,48 pieces of quantity (exemplary in Fig. 1 to depict three pieces of blades, remaining unillustrated 45 pieces of knife of blade 2
Piece is uniformly arranged on knife ring 1)；
Spray structure includes: fire retardant storage tank 3, pressure nozzle 4 and fire retardant conveyance conduit, and pressure nozzle 4 passes through fire-retardant
Agent conveyance conduit is connected with fire retardant storage tank 3；
The spray angle of pressure nozzle 4 is vertical with the blade of blade 2, to guarantee the angle of spout and blade in 90 °.Pressure
The quantity of spray head 4 is 10, and pressure nozzle 4 is uniformly distributed along the excircle of knife ring 1, the excircle of pressure nozzle 4 and knife ring 1
Distance can be 2cm.
Fire retardant conveyance conduit includes conveying main line 5 and conveying branch 6, and it is in parallel respectively to convey branch 6.Conveying is set on main line 5
Mass flowmenter 7 and impeller pump 8 are set, each convey is provided with flow sensor 9 and ball valve 10 on branch 6.Convey the quantity of branch 6
It can be identical or different with the quantity of spray head, it is preferable that a conveying branch 6 connects a spray head 4.
Fire retardant storage tank includes storage tank tank body 11 and blender 12, and storage tank tank body 11 selects heat preservation tank body, and blender 12 is excellent
It is selected as electric mixer.
Spray structure further includes fire retardant preparing tank 13, and fire retardant preparing tank 13 and fire retardant storage tank 3 pass through piping connection.
Fire retardant preparing tank 13 includes preparing tank 14, blender 12 and weight transmitter 15, weight transmitter 15 to be uniformly arranged on
The bottom of tank 14 is prepared, the quantity of weight transmitter is three.The pipe that fire retardant preparing tank 13 is connect with fire retardant storage tank 3
Road setting mass flowmenter 7 and impeller pump 8.
Fire retardant preparing tank 13 also passes through piping connection, the connection of fire retardant preparing tank 13 and water tank 16 with water tank 16
Impeller is set on pipeline and pumps 8.
Illustratively, the connecting line of fire retardant conveyance conduit, fire retardant preparing tank and fire retardant storage tank, fire retardant are prepared
The material of the connecting line of tank and water tank is stainless steel material.
An embodiment according to the present invention, chipper further includes motor.It is driven by a motor the rotation of knife ring；Motor, matter
Amount flowmeter, flow sensor, ball valve and pump are electrically connected with PLC controller.
Embodiment 2-21
The device provided using embodiment 1, with the rotation of flaking machine knife ring, blade to wood cutting flaking, (advise by flaking
Lattice: width 5-40mm, thickness 0.4-0.8mm, length 100-180mm), at the same time, retardant solution is along perpendicular to blade
The direction of blade is equably sprayed on flaking, obtains fire-retardant flaking.
The range of retardant solution sprinkling can cover all flakings.
The temperature of retardant solution is at 25 ± 5 DEG C or so；
The concentration of fire retardant in retardant solution, the adhesion amount of fire retardant, fountain height (being indicated with pump discharge) and fire-retardant
Agent sprinkling front and back flaking moisture content, as shown in table 1.
Table 1.
Note: there is apparent liquid flow after pump discharge reaches maximum value in table, inside equipment and occur as illustrating current
Under operating condition, flaking currently has reached saturation to the adsorbance of retardant solution.
The detection of 1 flaking anti-flammability of test case
The fire-retardant flaking obtained to the surface embodiment 2-21 sprinkling retardant solution detects, and detection content includes following
Three aspects, testing result are as shown in table 2.
1, the fire retardant sprinkling uniformity and coverage rate of fire-retardant flaking
(1) fire-retardant flaking is distinguished using in such a way that red staining agent is added in fire retardant storage tank, red staining agent
Additive amount is that 1 kilogram of coloring agent is added in every cubic metre of retardant solution, and the storage of fire retardant in storage tank is controlled before detecting, is guaranteed
The storage of fire retardant is about 10 minutes usage amounts.
(2) repeatedly sampling respectively, sampling interval time are 3-4 minutes nearby in flaking conveyor belt after spraying, often
Sub-sampling flaking quantity is 50, it is desirable that flaking area is greater than standard flaking (standard flaking size: 120mm × 20mm) area
40%.
(3) uniformity detects: observing the fire retardant coverage condition on each flaking by flaking surface color, selection is each
Flaking covers more one side and visually judges, when the surface area of the variant part of flaking color is greater than entire flaking monoplanar surface product
30% when, judge the flaking sprinkling uniformity it is unqualified.
Uniformity is stated with uniformity qualification flaking Zhan total flaking percentage:
Uniformity=(uniformity qualification flaking quantity/flaking total quantity) × 100%.
(4) coverage rate: the fire retardant coverage condition on each flaking is observed by flaking surface color, selects each flaking
It covers more one side visually to judge, when the area that flaking is not colored part is greater than the 10% of entire flaking monoplanar surface product
When, judge that flaking sprinkling covering is unqualified.
Spreadability makes a decision result with coverage rate:
Coverage rate=(covering qualified flaking quantity/flaking total quantity) × 100%.
2, amount of flame-retardant agent
Front and back flaking water-cut variation, which is sprayed, by detection calculates amount of flame-retardant agent.
(1) flame retardant concentration detects: taking 50g or so retardant solution on production line, 2g drop is taken from 50g retardant solution
Enter surface plate, is put into 50 ± 5 DEG C of baking ovens and dries 2 hours, calculate solid content.Fire retardant solid content is denoted as a.
(2) fire retardant flaking measurement of water-content coefficient (i.e. detection moisture content) is not sprayed: selecting 5 at random before chipper
Complete timber, separately sampled detection moisture content take 5 moisture content average values to be denoted as plane material moisture content b.
(3) fire-retardant flaking measurement of water-content coefficient: sampling nearby in flaking conveyor belt after spraying, is spaced 30 seconds, divides 3 times
Sampling is uniformly mixed.10 flakings (40% of area not less than standard flaking area) is randomly selected from the flaking of mixing, is put
Enter fast tester for water content, under 100 ± 2 DEG C, 10 minutes, measures moisture content, moisture content is denoted as c.
(4) fire retardant adhesion amount (refers to that the sprayed weight for being attached to flaking of fire retardant accounts for the weight percent of over dry flaking
Than) calculate:
Calculation formula x=(c-b) × a/ ((1-b) × (1-a-c)) × 100%.
3, the flame retardant effect detection of fire-retardant flaking
Detection method:
(1) fire-retardant flaking is dried 10 minutes in 100 ± 2 DEG C of baking ovens, is then placed on alcolhol burner and burns, visually judges flaking
It is ignited the required time, is denoted as duration of fire resistance.According to whether the duration of fire resistance for reaching the requirement of this step judges that the flaking is
The no flame retardant effect for reaching the step.
(1) it samples, is spaced 30 seconds nearby in flaking conveyor belt after spraying, point 3 sub-samplings are uniformly mixed.From mixed
50 flakings (40% of area not less than standard flaking area) is randomly selected in even flaking.
(2) flaking is put into 100 ± 2 DEG C of baking oven layings uniform, no superposition, dries 10 minutes.
(3) in calm show window, alcolhol burner is lighted, one jiao that fire-retardant flaking is vertically clamped with fixture is placed on alcolhol burner
Side, the minimum angle of flaking is located at alcolhol burner flame envelope center.Observe flaking combustion case, the time that record flaking is ignited, Yi Jiyi
After flame time and smoldering time after opening alcolhol burner.
The acceptability criteria of flaking anti-flammability is as shown in table 2.
Table 2.
Anti-flammability makes a decision result with fire-retardant qualification rate:
Fire-retardant qualification rate=(flaking quantity/flaking total quantity of anti-flammability qualification) × 100%.
Table 3.
| Project | Fire retardant coverage rate (%) | It sprays uniformity (%) | Fire-retardant qualification rate (%) |
| Embodiment 2 | 92 | 86 | 94 |
| Embodiment 3 | 94 | 90 | 96 |
| Embodiment 4 | 96 | 92 | 94 |
| Embodiment 5 | 96 | 92 | 94 |
| Embodiment 6 | 100 | 94 | 96 |
| Embodiment 7 | 96 | 94 | 96 |
| Embodiment 8 | 98 | 94 | 98 |
| Embodiment 9 | 96 | 96 | 100 |
| Embodiment 10 | 96 | 96 | 100 |
| Embodiment 11 | 96 | 96 | 100 |
| Embodiment 12 | 92 | 90 | 96 |
| Embodiment 13 | 94 | 92 | 100 |
| Embodiment 14 | 100 | 98 | 98 |
| Embodiment 15 | 98 | 96 | 100 |
| Embodiment 16 | 90 | 82 | 90 |
| Embodiment 17 | 90 | 86 | 88 |
| Embodiment 18 | 92 | 84 | 90 |
| Embodiment 19 | 92 | 86 | 92 |
| Embodiment 20 | 86 | 88 | 86 |
| Embodiment 21 | 86 | 88 | 90 |
From the above data, the fire-retardant qualification rate of embodiment 2-21 obtained flame-retardant flaking is reached as high as 86% or more
100%.Also, it can be by flame retardant concentration and pump discharge in control retardant solution, to adjust flame retardant property.Wherein, pump stream
Amount is in 35L/min or more, and when flame retardant concentration is between 20-31wt%, the qualification rate of fire-retardant flaking is 94% or more.
22 knife ring temperature monitoring of embodiment
2 flaking of embodiment after ten minutes, knife ring exit after immediately using infrared temperature detector monitor knife circumstance temperature degree.Often
4 knives need to be dug by criticizing timber, about 1 minute time-consuming, monitor 40 batches.
Embodiment 23
Embodiment 22 is repeated, the difference is that using resistance used in water alternate embodiment 2 identical with 2 temperature of embodiment
Combustion agent solution cools down knife ring.
Embodiment 24
Embodiment 22 is repeated, the difference is that using retardant solution A alternate embodiment identical with 2 temperature of embodiment
Retardant solution used in 2 cools down knife ring；
Retardant solution A are as follows: according to quality than borax: Amcide Ammate: sodium phosphate: ammonium phosphate=2:3:2:3 adds water to match
Retardant solution A is made.The flame retardant concentration of retardant solution A is same as Example 2.
Knife circumstance temperature degree monitoring result is as shown in table 4, table 5 and table 6.
4. embodiment of table, 22 temperature monitoring data
| Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C |
| 1 | 29.5 | 9 | 26.1 | 17 | 29.0 | 25 | 27.4 | 33 | 26.6 |
| 2 | 30.0 | 10 | 29.3 | 18 | 31.3 | 26 | 28.0 | 34 | 27.7 |
| 3 | 27.9 | 11 | 31.9 | 19 | 29.4 | 27 | 30.1 | 35 | 30.2 |
| 4 | 31.9 | 12 | 27.6 | 20 | 30.5 | 28 | 30.8 | 36 | 28.9 |
| 5 | 27.3 | 13 | 31.9 | 21 | 31.8 | 29 | 27.4 | 37 | 30.9 |
| 6 | 27.0 | 14 | 28.0 | 22 | 29.0 | 30 | 29.9 | 38 | 31.2 |
| 7 | 27.8 | 15 | 29.8 | 23 | 28.9 | 31 | 29.6 | 39 | 31.1 |
| 8 | 28.5 | 16 | 28.2 | 24 | 28.7 | 32 | 31.1 | 40 | 29.9 |
Note: environment temperature: 23.4 DEG C, retardant solution temperature: 25 DEG C.
5. embodiment of table, 23 temperature monitoring data
| Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C |
| 1 | 33.4 | 9 | 33.2 | 17 | 33.7 | 25 | 34.5 | 33 | 35.2 |
| 2 | 36.5 | 10 | 32.0 | 18 | 34.0 | 26 | 35.6 | 34 | 35.2 |
| 3 | 35.0 | 11 | 36.9 | 19 | 35.2 | 27 | 35.5 | 35 | 33.2 |
| 4 | 35.7 | 12 | 35.5 | 20 | 35.0 | 28 | 32.4 | 36 | 33.8 |
| 5 | 35.8 | 13 | 34.5 | 21 | 34.2 | 29 | 33.7 | 37 | 34.6 |
| 6 | 37.0 | 14 | 34.8 | 22 | 33.3 | 30 | 34.3 | 38 | 33.6 |
| 7 | 34.0 | 15 | 36.6 | 23 | 33.4 | 31 | 34.3 | 39 | 32.3 |
| 8 | 33.9 | 16 | 34.6 | 24 | 32.1 | 32 | 36.1 | 40 | 33.0 |
Note: environment temperature: 23.4 DEG C, water temperature: 25 DEG C.
6. embodiment of table, 24 temperature monitoring data
| Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C | Serial number | Temperature/DEG C |
| 1 | 28.3 | 9 | 28.4 | 17 | 30.8 | 25 | 28.4 | 33 | 28.1 |
| 2 | 30.8 | 10 | 30.4 | 18 | 27.4 | 26 | 28.0 | 34 | 28.8 |
| 3 | 28.4 | 11 | 29.4 | 19 | 29.9 | 27 | 27.7 | 35 | 31.2 |
| 4 | 30.7 | 12 | 26.6 | 20 | 31.7 | 28 | 30.2 | 36 | 27.2 |
| 5 | 29.6 | 13 | 31.4 | 21 | 30.4 | 29 | 28.5 | 37 | 31.9 |
| 6 | 29.0 | 14 | 28.9 | 22 | 28.0 | 30 | 30.8 | 38 | 30.4 |
| 7 | 30.8 | 15 | 30.9 | 23 | 29.9 | 31 | 30.6 | 39 | 29.1 |
| 8 | 27.3 | 16 | 27.7 | 24 | 27.4 | 32 | 31.9 | 40 | 29.4 |
Note: environment temperature: 23.4 DEG C, water temperature: 25 DEG C.
By above-mentioned monitoring result, it will thus be seen that spray the cooling effect of retardant solution better than sprinkling cooling water, cool down width
Degree significantly improves.Also, the cooling effect for spraying different water-soluble fire-resisting agent solutions is essentially identical.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. being provided with the chipper of fire retardant spray structure, which is characterized in that the chipper includes: knife ring, blade and sprinkling
Structure；
The blade is distributed on knife ring；
The spray structure includes: fire retardant storage tank, spray head and conveyance conduit, and the spray head is stored up by conveyance conduit and fire retardant
Tank is connected；
The quantity of the spray head is one, two or more.
2. chipper according to claim 1, which is characterized in that the spray head is arranged along the excircle of the knife ring；
The blade is uniformly distributed on knife ring, and the angle of the blade and knife ring is 24-35 degree；
Preferably, the spray head is 0-4cm at a distance from knife ring periphery；
Preferably, angle≤90 degree of the cutting edge of the spray angle of the spray head and the blade.
3. chipper according to claim 1 or 2, which is characterized in that quality stream is arranged on the fire retardant conveyance conduit
Meter, flow sensor, valve and/or pump；The fire retardant conveyance conduit includes conveying main line and conveying branch, the conveying
Branch circuit parallel connection；
Preferably, the quantity of the conveying branch and the quantity of the spray head are identical or different；
Preferably, the fire retardant storage tank includes the blender of tank body and setting in the inner.
4. chipper according to claim 1-3, which is characterized in that the spray structure further includes that fire retardant is matched
Tank processed, the fire retardant preparing tank and the fire retardant storage tank pass through piping connection；
Preferably, the fire retardant preparing tank includes preparing tank, the blender and weight transmitter of setting in the inner；
Preferably, the fire retardant preparing tank and the fire retardant, which store up, is arranged mass flowmenter, flow biography on tank connected pipeline
Sensor, valve and/or pump.
5. chipper according to claim 1-4, which is characterized in that the chipper further includes motor；
Preferably, the motor, mass flowmenter, flow sensor, valve and pump are electrically connected with PLC controller.
6. a kind of flaking method, which is characterized in that including the described in any item chipper flakings of practical claim 1-5；
Preferably, the flaking method further includes spraying fire retardant while flaking；
Preferably, the method includes the following steps:
1) by feedstock transportation to chipper；
2) with the rotation of knife ring, blade cut raw material obtains flaking；Meanwhile by retardant solution along perpendicular to the blade
The direction of cutting edge is sprayed on the flaking, obtains fire-retardant flaking.
7. according to the method described in claim 6, it is characterized in that, the retardant solution is the aqueous solution of fire retardant；
Preferably, the concentration of fire retardant is 20-40wt% in the retardant solution；
Preferably, the fire retardant is selected from water-soluble flame retardant.
8. method according to claim 6 or 7, which is characterized in that the temperature of the retardant solution is 0-40 DEG C；
Preferably, the fountain height of the retardant solution is 20-90L/min.
9. according to the described in any item methods of claim 6-8, which is characterized in that it is attached with fire retardant on the fire-retardant flaking,
The adhesion amount of fire retardant is 1.0-6.0%.
10. according to the described in any item methods of claim 7-9, which is characterized in that before sprinkling retardant solution, the flaking
Moisture content be 30-50wt%；
Preferably, after spraying retardant solution, the moisture content of the flaking is 35-55wt%.
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| CN108972751A (en) * | 2018-06-28 | 2018-12-11 | 广西浙缘农业科技有限公司 | Environment friendly aldehyde-free fire retardant and wood-based plate processing method |
| CN209970975U (en) * | 2018-12-29 | 2020-01-21 | 湖北宝源木业有限公司 | Flaker with fire retardant spraying structure |
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2018
- 2018-12-29 CN CN201811647284.8A patent/CN109746985B/en active Active
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|---|---|---|---|---|
| CN201143713Y (en) * | 2007-12-30 | 2008-11-05 | 国家林业局北京林业机械研究所 | Bamboo wood OSB slicing machine |
| CN107379141A (en) * | 2017-08-02 | 2017-11-24 | 天津北新木业有限公司 | A kind of fire-retardant oriented wood chipboard of modification and preparation method thereof |
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| CN209970975U (en) * | 2018-12-29 | 2020-01-21 | 湖北宝源木业有限公司 | Flaker with fire retardant spraying structure |
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