CN105731987A - Novel straw building block and production equipment and technology - Google Patents
Novel straw building block and production equipment and technology Download PDFInfo
- Publication number
- CN105731987A CN105731987A CN201610089426.8A CN201610089426A CN105731987A CN 105731987 A CN105731987 A CN 105731987A CN 201610089426 A CN201610089426 A CN 201610089426A CN 105731987 A CN105731987 A CN 105731987A
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- China
- Prior art keywords
- building block
- mould
- magnesium chloride
- agricultural crop
- crop straw
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/027—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form using a bottom press ram actuated upwardly towards mould covers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a novel straw building block and production equipment and technology. The utilization rate of crop straw is increased, and by adding accelerator, the hardening rate and intensity of the building block can be increased, the demolding time of the building block in the manufacturing process is greatly shortened, and the requirement for quick production is met.
Description
Technical field
The invention belongs to building material field, particularly relate to a kind of novel straw building block and produce equipment and technology.
Background technology
Environmental protection, the development trend being belonging to building material energy-conservation, safe, renewable, China is a large agricultural country, and agricultural crop straw total output is more than 700,000,000 tons, but the utilization rate of straw is very low in China, only accounts for about 5%.After crop harvesting, for ensureing again cultivating of soil, substantial amounts of agricultural crop straw is burned off, and has both wasted substantial amounts of natural resources, again to environment.The western countries such as America and Europe are devoted to the research that agricultural crop straw is used for construction material very early, and effect is notable, and China, in this respect also in the starting stage, does not popularize, and uses Rhizoma Begoniae Willsonii traditional for thousands of years always, wastes substantial amounts of soil resource and the energy.Facing to a series of Tough questions such as resource exhaustion, ecological deterioration, ecological disruption, climate warmings; and improving constantly along with building energy conservation and environmental protection requirement; utilize agricultural wastes; as Semen Tritici aestivi, corn straw produce novel wall material; not only can turn waste into wealth; and meet sustainable development view, there is very strong development potentiality.
Although having the building block utilizing crop straws for producing at present, but the rate of set of this kind of building block being slower, it is impossible to meet the demand quickly produced；The water proofing property of this kind of building block simultaneously, freeze-thaw resistance and durability are all poor.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the present invention provides a kind of novel straw building block and produces equipment and technology, improve the utilization rate of agricultural crop straw, simultaneously by adding accelerator, accelerate the setting rate of this kind of building block, block strength, substantially reduce the demoulding time in building block manufacturing process, meet the requirement of quickly production.
For reaching above-mentioned purpose, the technical scheme is that the building block of this novel straw includes bearing building block and non-bearing building block, described bearing building block includes by mass percentage:
The agricultural crop straw of 10%-15%,
The cement of 10%-15%,
The magnesium chloride of 6%-8%,
The magnesium oxide of 22%-25%,
The sand of 18%-20%,
The potassium salt liquid of 0.5%-1%,
0.5%-1% hydroxymethyl cellulose,
0.5%-1% fire retardant,
Surplus is water；
Described non-bearing building block includes by mass percentage:
The agricultural crop straw of 50%-55%,
The cement of 10%-15%,
The magnesium chloride of 6%-8%,
The magnesium oxide of 20%-25%,
The potassium salt liquid of 0.5%-1%,
0.5%-1% hydroxymethyl cellulose,
0.5%-1% fire retardant,
Surplus is water.
The present invention devises, and described agricultural crop straw rubs the straw with overall fibre structure after pressure through kneading compactor.
The present invention devises, and described cement is PO42.5 Portland cement.
The present invention devises, and described magnesium chloride is the lightweight magnesium chloride that fired method produces.
The present invention devises, and described magnesium oxide is the magnesium oxide that Hydrolyze method produces.
The present invention devises, and described potassium salt is trihydroxy hydration potassium metaaluminate.
The present invention devises, and described fire retardant is sodium tripolyphosphate.
The present invention also provides for the production equipment of a kind of novel straw building block, including kneading compactor, beater, blender, pressure former and control system, the discharging opening of described kneading compactor and beater is respectively arranged with the connection with blender, kneading compactor, beater, the drive motor of blender is respectively arranged with and the connection controlling system, described pressure former is set to the hydraulic press with guide rail, the mould being moved along it is set at guide rail, the material collecting tank of gland it is provided with at the top of mould, hydraulic push rod at hydraulic press is arranged below horizontal pressure foot, the drive motor I of hydraulic press is provided with and the connection controlling system.
This complete equipment continuity is strong, pressure will be rubbed, making beating, stirring and moulding process are connected to one piece, it is easy to the streamline of building block, produce in enormous quantities, control various drive motors by control system to operate, it is respectively completed and above-mentioned rubs pressure, making beating, agitating procedure, last flow directly into material collecting tank from blender slurry out, mould is delivered to along guide rail together with material collecting tank the underface of horizontal pressure foot, by controlling the drive motor I of hydraulic press, hydraulic push rod drives horizontal pressure foot to move both vertically toward mould direction, horizontal pressure foot is pressed on gland and carries out molding process, it is achieved thereby that the making of this kind of building block.
The present invention devises, described kneading compactor includes rubbing pressure cylinder body, arranging screw feeder in pressure cylinder body rubbing, the rotating shaft of screw feeder connects the output shaft being arranged on the drive motor II rubbing the external side of pressure cylinder, arranges charging aperture I in the top side rubbing pressure cylinder body and arranges discharging opening I bottom its side；
Described beater includes tank body, arranges vertical fin in tank body, and the rotating shaft of fin connects the output shaft of the drive motor III being arranged on tank body top, the top of tank body arrange charging aperture II and its bottom discharging opening II is set；
Described blender includes stirring tank body, at stirring tank body, stirring wing is set, the rotating shaft of stirring wing connects the output shaft of the drive motor IV being arranged on agitator tank side portion, arranging charge door III at the top of stirring tank body and arrange discharging opening III at its sidepiece, the top of stirring tank body is respectively communicated with discharging opening I and discharging opening II
The present invention also provides for the manufacturing process of a kind of novel straw building block, wherein makes bearing building block step as follows:
(1) it is dissolved in the water under magnesium chloride being stirred at 120-160 rev/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 10-15 minute with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 60-120 rev/min 10-15 minute and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2-3 hour, remove mould, obtain finished product building block；
Wherein make non-bearing block step as follows:
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 120-160 rev/min by magnesium chloride；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 10-15 minute with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, it is sufficiently stirred under blender rotating speed 60-120 rev/min 10-15 minute, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2-3 hour by the mould locked.
The agricultural crop straw building block that the present invention makes, can be used as building bearing building block and non-bearing building block, meet building design and construction codes and standards requirement, especially insulation, heat insulation, sound insulation, antidetonation, light weight, durable, water-fast, fire-resistant, cheap, improve efficiency of construction etc. in advantage more prominent, namely take full advantage of the agricultural straw resource that rural area is vast, fundamentally solve again the severe contamination owing to air is caused by agricultural crop straw burning.
Described agricultural crop straw is that through kneading compactor, the agricultural crop straw under naturalness is rubbed the straw in overall fibre structure after pressure, it acts on guarantee and improves on building block tension, rupture strength basis, reduces building block unit weight, improves heat insulating effect, reduces building block production cost.
Described cement is PO42.5 Portland cement, and as the Binder Materials of building block, its effect improves the mechanical strength of building block, reduces building block production cost.
Described magnesium chloride is the lightweight magnesium chloride that roasting method produces, and as the Binder Materials of building block, its effect improves the mechanical strength of building block.
Described magnesium oxide is the high purity magnesium oxide that Hydrolyze method produces, and as the Binder Materials of building block, its effect improves the mechanical strength of building block.
Described potassium salt liquid is trihydroxy hydration potassium metaaluminate, it is as the efficient rapid hardening reinforcing material of building block, and its effect is accelerated cement, magnesium chloride, the condensation setting rate of magnesium oxide Binder Materials, the demoulding time increased in block strength, shortening building block manufacturing process, improves production efficiency, reduced production cost
Described hydroxymethyl cellulose is macromolecule organic polymer, and as the waterproof of building block, Tackifier materials, its effect increases the adhesion strength of Binder Materials and straw, the macromolecule membranous layer of formation, determines the excellent water proofing property of building block, freeze-thaw resistance and durability.
Described fire retardant is sodium tripolyphosphate, and as fire-retardant, the anti-fungus material of building block, its effect increases the fire resistance rating of building block, prevents the going mouldy of stalk fibre, improves durability.
Accompanying drawing explanation
Fig. 1 is the building block equipment schematic diagram of the present invention.
Detailed description of the invention
Following table is 6 specific embodiments of the bearing building block of the present invention, and the amount of each component is mass percent；
The bearing building block of above-described embodiment 1 is adopted and is prepared with the following method, specifically comprises the following steps that
(1) it is dissolved in the water under magnesium chloride being stirred at 120 revs/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 10 minutes with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 60 revs/min 10 minutes and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2 hours, remove mould, obtain finished product building block.
The bearing building block of above-described embodiment 2 is adopted and is prepared with the following method, specifically comprises the following steps that
(1) it is dissolved in the water under magnesium chloride being stirred at 130 revs/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 11 minutes with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 70 revs/min 11 minutes and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2.1 hours, remove mould, obtain finished product building block
The bearing building block of above-described embodiment 3 is adopted and is prepared with the following method, specifically comprises the following steps that
(1) it is dissolved in the water under magnesium chloride being stirred at 140 revs/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 12 minutes with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 75 revs/min 12 minutes and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2.2 hours, remove mould, obtain finished product building block.
The bearing building block of above-described embodiment 4 is adopted and is prepared with the following method, specifically comprises the following steps that
(1) it is dissolved in the water under magnesium chloride being stirred at 150 revs/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 14 minutes with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 100 revs/min 13 minutes and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2.5 hours, remove mould, obtain finished product building block.
The bearing building block of above-described embodiment 5 is adopted and is prepared with the following method, specifically comprises the following steps that
(1) it is dissolved in the water under magnesium chloride being stirred at 155 revs/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 15 minutes with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 110 revs/min 15 minutes and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2.7 hours, remove mould, obtain finished product building block
The bearing building block of above-described embodiment 6 is adopted and is prepared with the following method, specifically comprises the following steps that
(1) it is dissolved in the water under magnesium chloride being stirred at 160 revs/min, is configured to the magnesium chloride solution of 40% concentration；
(2) PO42.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 15 minutes with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 120 revs/min 15 minutes and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 3 hours, remove mould, obtain finished product building block.
Following table is 6 specific embodiments of the non-bearing building block of the present invention, and the amount of each component is mass percent.
The non-bearing building block of above-described embodiment 1 is adopted and is prepared with the following method, specifically comprises the following steps that
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 120 revs/min by magnesium chloride；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 10 minutes with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred for 10 minutes under blender rotating speed 60 revs/min, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2 hours by the mould locked.
The non-bearing building block of above-described embodiment 2 is adopted and is prepared with the following method, under specifically comprising the following steps that magnesium chloride is stirred at 130 revs/min by (a), is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 11 minutes with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred for 11 minutes under blender rotating speed 70 revs/min, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2.1 hours by the mould locked
The non-bearing building block of above-described embodiment 3 is adopted and is prepared with the following method, specifically comprises the following steps that
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 140 revs/min by magnesium chloride；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 12 minutes with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred for 12 minutes under blender rotating speed 80 revs/min, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2.3 hours by the mould locked.
The non-bearing building block of above-described embodiment 4 is adopted and is prepared with the following method, specifically comprises the following steps that
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 150 revs/min by magnesium chloride；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 13 minutes with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, be sufficiently stirred for 13 minutes under blender rotating speed 90 revs/min, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2.4 hours by the mould locked.
The non-bearing building block of above-described embodiment 5 is adopted and is prepared with the following method, specifically comprises the following steps that
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 155 revs/min by magnesium chloride；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 14 minutes with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, it is sufficiently stirred under blender rotating speed 100 revs/min 14 minutes, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2.5 hours by the mould locked.
The non-bearing building block of above-described embodiment 6 is adopted and is prepared with the following method, specifically comprises the following steps that
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 160 revs/min by magnesium chloride；
B PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 15 minutes with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add liquid mixing slurry, potassium salt liquid accelerator, it is sufficiently stirred under blender rotating speed 120 revs/min 15 minutes, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 3 hours by the mould locked.
nullIn this example，It is illustrated in figure 1 the production equipment of this kind of building block，This equipment includes kneading compactor、Beater、Blender、Pressure former and control system，The discharging opening of described kneading compactor and beater is respectively arranged with the connection with blender，Kneading compactor、Beater、The drive motor of blender is respectively arranged with and the connection controlling system，Described pressure former is set to the hydraulic press 23 with guide rail 21，The mould 19 being moved along it is set at guide rail 21，The material collecting tank 22 of gland 20 it is provided with at the top of mould 19，Hydraulic push rod 25 at hydraulic press 23 is arranged below horizontal pressure foot 24，The drive motor I26 of hydraulic press 23 is provided with and the connection controlling system，Described kneading compactor includes rubbing pressure cylinder body 3，Rubbing, screw feeder 4 is set in pressure cylinder body 3，The rotating shaft connection of screw feeder 4 is arranged on the output shaft rubbing the drive motor II2 outside pressure cylinder body 3，Charging aperture I1 is set in the top side rubbing pressure cylinder body 3 and discharging opening I5 is set bottom its side；Described beater includes tank body 8, arranges vertical fin 9 in tank body 8, and the rotating shaft of fin 9 connects the output shaft of the drive motor III10 being arranged on tank body 8 top, the top of tank body 8 arrange charging aperture II11 and its bottom discharging opening II12 is set；Described blender includes stirring tank body 15, at stirring tank body 15, stirring wing 16 is set, the rotating shaft of stirring wing 16 connects the output shaft of the drive motor IV13 being arranged on stirring tank body 15 sidepiece, arranging charge door III14 at the top of stirring tank body 15 and arrange discharging opening III17 at its sidepiece, the top of stirring tank body 15 is respectively communicated with discharging opening I5 and discharging opening II12.
The operational approach of this equipment is as follows: is put into from charging aperture I1 by agricultural crop straw and rubs in pressure cylinder body 3, with the rotation of screw feeder 4, straw is rubbed pressure operation, rub the straw pressed under the rotation forces effect of screw feeder 4, finally enter from discharging opening I5 in the stirring tank body 15 of blender；Meanwhile, PO42.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, and carry out pulping process by charging aperture II11 addition tank body 8, slurry forms liquid mixing slurry with the rotation of fin 9, and finally this liquid mixing slurry is expelled in stirring tank body 15 from discharging opening II12；Finally potassium salt liquid is put into from charge door III14 with in the tank body 15 rubbing the straw after pressure and liquid mixing slurry, straw compound is formed under the stirring action of stirring wing 16, finally this straw compound drains into from discharging opening III17 in material collecting tank 22 and mould 19, gland 20 is covered, by guide rail 21, mould 19 and material collecting tank 22 are simultaneously moved to immediately below horizontal pressure foot 24, by controlling hydraulic press, hydraulic push rod 24 drives horizontal pressure foot 24 to press on gland 20, finally the locking device of mould surrounding is opened, the building block pressed is taken out, whole process operation is simple and is easily achieved
Aforesaid operations process simply describes step when making non-bearing building block, makes operating procedure during bearing building block identical with this, and simply reinforced composition is different.
Claims (10)
1. a novel straw building block, including bearing building block and non-bearing building block, is characterized in that: described bearing building block includes by mass percentage:
The agricultural crop straw of 10%-15%,
The cement of 10%-15%,
The magnesium chloride of 6%-8%,
The magnesium oxide of 22%-25%,
The sand of 18%-20%,
The potassium salt liquid of 0.5%-1%,
0.5%-1% hydroxymethyl cellulose,
0.5%-1% fire retardant,
Surplus is water；
Described non-bearing building block includes by mass percentage:
The agricultural crop straw of 50%-55%,
The cement of 10%-15%,
The magnesium chloride of 6%-8%,
The magnesium oxide of 20%-25%,
The potassium salt liquid of 0.5%-1%,
0.5%-1% hydroxymethyl cellulose,
0.5%-1% fire retardant,
Surplus is water.
2. a kind of novel straw building block according to claim 1, is characterized in that: described agricultural crop straw rubs the straw with overall fibre structure after pressure through kneading compactor.
3. a kind of novel straw building block according to claim 1, is characterized in that: cement is P042.5 Portland cement.
4. a kind of novel straw building block according to claim 1, is characterized in that: described magnesium chloride is the lightweight magnesium chloride that fired method produces.
5. a kind of novel straw building block according to claim 1, is characterized in that: described magnesium oxide is the magnesium oxide that Hydrolyze method produces.
6. a kind of novel straw building block according to claim 1, is characterized in that: described potassium salt liquid is trihydroxy hydration potassium metaaluminate.
7. a kind of novel straw building block according to claim 1, is characterized in that: described fire retardant is sodium tripolyphosphate.
8. the production equipment of a kind of novel straw building block as described in any one of claim 1-7, it is characterized in that: include kneading compactor, beater, blender, pressure former and control system, the discharging opening of described kneading compactor and beater is respectively arranged with the connection with blender, kneading compactor, beater, the drive motor of blender is respectively arranged with and the connection controlling system, described pressure former is set to the hydraulic press (23) with guide rail (21), the mould (19) being moved along it is set at guide rail (21), the material collecting tank (22) of gland (20) it is provided with at the top of mould (19), hydraulic push rod (25) in hydraulic press (23) is arranged below horizontal pressure foot (24), the drive motor I (26) of hydraulic press (23) is provided with and the connection controlling system.
9. the production equipment of a kind of novel straw building block according to claim 8, it is characterized in that: described kneading compactor includes rubbing pressure cylinder body (3), rubbing, screw feeder (4) is set in pressure cylinder body (3), the rotating shaft of screw feeder (4) connects the output shaft being arranged on the drive motor II (2) rubbing pressure cylinder body (3) outside, arranges charging aperture I (1) in the top side rubbing pressure cylinder body (3) and arranges discharging opening I (5) bottom its side；
Described beater includes tank body (8), vertical fin (9) is set in tank body (8), the rotating shaft of fin (9) connects the output shaft of the drive motor III (10) being arranged on tank body (8) top, the top of tank body (8) arrange charging aperture II (11) and its bottom discharging opening II (12) is set；
Described blender includes stirring tank body (15), in stirring tank body (15), stirring wing (16) is set, the rotating shaft of stirring wing (16) connects the output shaft of the drive motor IV (13) being arranged on stirring tank body (15) sidepiece, arranging charge door III (14) at the top of stirring tank body (15) and arrange discharging opening III (17) at its sidepiece, the top of stirring tank body (15) is respectively communicated with discharging opening I (5) and discharging opening II (12).
10. a manufacturing process for a kind of novel straw building block as described in any one of claim 1-7, wherein makes bearing building block step as follows:
(1) it is dissolved in the water under magnesium chloride being stirred at 120-160 rev/min, is configured to the magnesium chloride solution of 40% concentration；
(2) P042.5 Portland cement, sand, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution, be sufficiently stirred for 10-15 minute with 200 revs/min of mixing speeds, form fluid mixed slurry；
(3) agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes, add fluid mixed slurry, potassium salt liquid accelerator, be sufficiently stirred under blender rotating speed 60-120 rev/min 10-15 minute and form agricultural crop straw mix；
(4) the agricultural crop straw mix being stirred is poured in mould；
(5) applying pressure by hydraulic means to mould gland, causing compression ratio is till 3: 1, and locks mould gland；
(6), after the mould locked being placed 2-3 hour, remove mould, obtain finished product building block；
Wherein make non-bearing block step as follows:
A () is dissolved in the water, is configured to the magnesium chloride solution of 40% concentration under being stirred at 120-160 rev/min by magnesium chloride；
B P042.5 Portland cement, magnesium oxide, hydroxymethyl cellulose, fire retardant are added in magnesium chloride solution by (), be sufficiently stirred for 10-15 minute with 200 revs/min of mixing speeds, form liquid mixing slurry；
C agricultural crop straw under naturalness is rubbed, through kneading compactor, the intact fibre structural material that swaging becomes by (), add fluid mixed slurry, potassium salt liquid accelerator, it is sufficiently stirred under blender rotating speed 60-120 rev/min 10-15 minute, forms agricultural crop straw mix；
D the agricultural crop straw mix being stirred is poured in mould by ()；
E (), by hydraulic means, applies pressure to mould gland, till causing compression ratio 1.5: 1, and locks mould gland；
F () is removed mould, is obtained finished product building block after being placed 2-3 hour by the mould locked.
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| CN111993538A (en) * | 2020-09-05 | 2020-11-27 | 安庆米锐智能科技有限公司 | Preparation process of sintered brick |
| US20230365469A1 (en) * | 2021-11-30 | 2023-11-16 | Sierracrete Llc | Composite cellulosic products and processes for making and using same |
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| CN105731987B (en) | 2018-08-10 |
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