CN103278461B - Evaluation device of concrete components - Google Patents

Abstract

The invention belongs to the technical field of building operations, relates to an evaluation device of concrete components, which is characterized in that a 50 L capacity line is arranged below a feeding opening, a first weight sensing device is fixed below the capacity line, a double cone roller screen composed of a rotary screen with 0.5 mm screens and a rotary screen with 0.08 mm screens is fixedly connected to the lower end of a feed hopper, and a motor is fixedly connected to the right end of the rotary screen with 0.08 mm screens; a second discharging opening and a first discharging opening are fixed at the end opening parts of the left ends of the rotary screen with 0.5 mm screens and the rotary screen with 0.08 mm screens; the first discharging opening and the second discharging opening are fixedly connected with a second weight sensing device; a discharging opening is formed in the lower end of the second weight sensing device; a liquid discharging opening is formed in the bottom of the rotary screen with 0.08 mm screens; and the spectroscopic detector is fixedly connected with the first weight sensing device. The device provided by the invention has a simple structure, the evaluation method is simple, the theory is reliable, the measuring result is accurate, and the operation is convenient.

Description

A kind of identification apparatus of concrete ingredients

Technical field:

The invention belongs to technical field of building construction, relate to the equipment of situ appraisal concrete ingredients in a kind of work progress, particularly a kind of identification apparatus of concrete ingredients.

Background technology:

Along with the develop rapidly that China's building trade is come, various new construction technology and new machinery constantly emerge, and there has also been higher requirement to Construction Quality simultaneously.Under the background more and more important to Commercial Concrete demand, method for measuring and equipment thereof are carried out to the composition of Commercial Concrete in the scene in work progress that has not yet to see, if concrete ratio is the key factor affecting concrete workability, intensity, permanance, if the error of business's concrete station causes the match ratio of concrete to lack of proper care, concrete will be caused off quality, light then affect normally using and constructing of engineering, heavy then can security incident be caused, directly have influence on the security of the lives and property of construction quality and people.So, design a kind of technical matters and machine, make it irregularly at the construction field (site) can gather sample to concrete, to determine concrete mix and additive component content thereof rapidly and accurately, and carry out in time adjusting to ensure Construction Quality.

Summary of the invention:

The object of the invention is to the shortcoming overcoming prior art existence, seek to design the identification apparatus that a kind of concrete on construction site composition is provided, overcome the blind area of the fubaritic concrete composition in working-yard in prior art, by controlling concrete composition and quality, thus effectively ensure Construction Quality.

To achieve these goals, agent structure of the present invention comprises charging aperture, capacity line, the first weight induction device, feeder hopper, the rotary screen of 0.5mm screen cloth, the rotary screen of 0.08mm screen cloth, liquid discharge outlet, discharge gate, the second weight induction device, the first discharge port, the second discharge port, exterior display device, spectrum detection instrument and motor; The below of charging aperture is provided with 50L capacity line, and the below of capacity line is fixedly shaped with the first weight induction device, and concrete is also sent into feeder hopper by the concrete weight that the first induction installation measurement of inductance is poured into from charging aperture, and the capacity of feeder hopper is 50L; The rotary screen that feeder hopper lower end is fixedly connected with rotary screen and the 0.08mm screen cloth being shaped with 0.5mm screen cloth combines the bitubular roller screen formed, and the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth sift out stone in concrete and sand respectively; The right-hand member of the rotary screen of 0.08mm screen cloth is fixedly connected with and is shaped with motor; The left end port of the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth is fixedly shaped with the second discharge port and the first discharge port respectively, the stone that the rotary screen that second discharge port discharges 0.5mm screen cloth sifts out, the sand that the rotary screen that the first discharge port discharges 0.08mm screen cloth sifts out; First discharge port is fixedly connected with the second weight induction device with the second discharge port, the weight of the sand that the second weight induction device measurement of inductance first discharge port and the second discharge port are discharged and stone; Second weight induction device lower end is fixedly shaped with discharge gate, and discharge gate discharges sand and stone; The bottom of the rotary screen of 0.08mm screen cloth is opened and is shaped with liquid discharge outlet, and unnecessary liquid is discharged by liquid discharge outlet; Spectrum detection instrument is fixedly connected with the additive composition and ratio that detect and contain in concrete with the first weight induction device; The computing machine that the data recorded are transferred in exterior display device by the first weight induction device and the second weight induction device carries out computational analysis according to the computation process of setting, realizes the situ appraisal to concrete ingredients.

The present invention realizes:

(1), extract the mixed concrete sample in working-yard, first in spectrum detection instrument, adopt existing spectrographic method analysis to draw composition and the ratio of the additive existed in concrete;

(2) concrete sample of the working-yard, step (1) obtained is poured in the feeder hopper of fixed capacity 50L, concrete weight is obtained by the first weight induction device, pour wash-down water into from charging aperture to wash away concrete simultaneously, obtain the potpourri of concrete and water;

(3), by the potpourri of concrete and water filter out stone and sand respectively by the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth, and measure the weight of saturated water suction stone and saturated water suction sand respectively by the second weight induction device;

(4), by the mass transport of the concrete obtained, saturated water suction stone and saturated water suction sand to exterior display device, drawn the weight of stone in concrete, sand, cement and water by the computer calculate in exterior display device, complete the situ appraisal to concrete ingredients.

The detailed process of computer calculate involved in the present invention is: the natural moisture content of stone and sand is respectively W _g, W _s, apparent density is respectively ρ ' _g, ρ ' _s, stone and sand apparent density is in the dry state respectively ρ _g, ρ _s, then the volume of stone and sand is respectively:

$V_G=\frac{M_G}{{\mathrm{\ρ}}_G^{\′}}=\frac{1+W_G{\mathrm{\ρ}}_G}{{\mathrm{\ρ}}_G+W_G{\mathrm{\ρ}}_G}{M}_G=A_1{M}_G---\left(1\right)$

$V_S=\frac{M_S}{{\mathrm{\ρ}}_S^{\′}}=\frac{1+W_S{\mathrm{\ρ}}_S}{{\mathrm{\ρ}}_S+W_S{\mathrm{\ρ}}_S}{M}_S=B_1{M}_S---\left(2\right)$

M in formula _g, M _sbe respectively stone and sand weight in its natural state; Formula (1) and formula (2) are substituted into formula (3) M _c+ M _w+ M _g+ M _s=M and formula (4) V _c+ V _w+ V _g+ V _sin=V, obtain formula (5) and formula (6):

$V_c=\frac{M-V-(1-A_1{M}_G)-(1-B_1)M_S}{{\mathrm{\ρ}}_C-1}---\left(5\right)$

V _W=V-A ₁M _G-B ₁M _S-V _C (6)

Wherein M _c=ρ _cv _c, M _w=ρ _wv _w, M _cfor cement weight, ρ _cfor cement density, V _cfor cement volume, M _wfor the weight of water, ρ _wfor the density of water, V _wfor the volume of water; Consider the existence of the saturated water absorption after the content of stone and sand and water punching, derive M _g, M _sscreen over-size M ' after rushing with water _g, M ' _srelation, if the saturated water absorption of stone and silt content are respectively W _g' and Q _g, saturated water absorption and the silt content of sand are respectively W _s' and Q _s, then to stone definition silt content be so, obtain formula (7):

$M_G=\frac{1+W_G}{(1+W_G^{\′})(1-Q_G)}{M}_G^{\′}=A_2{M}_G^{\′}---\left(7\right)$

In like manner, formula (8) is obtained:

$M_S=\frac{1+W_S}{(1+W_S^{\′})(1-Q_S)}{M}_S^{\′}=B_2{M}_S^{\′}---\left(8\right)$

Formula (7) and formula (8) are substituted into formula (5) and formula (6) obtains

$V_C=\frac{M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}}{{\mathrm{\ρ}}_C-1}$

V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

Then can draw the computing formula of each component in concrete, namely

$M_C=\frac{{\mathrm{\ρ}}_C}{({\mathrm{\ρ}}_C-1)}[M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}]$

M _W=V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

M _G=A ₂M′ _G

M _S=B ₂M′ _S。

Compared with prior art, its apparatus structure is simple, and authentication method is easy in the present invention, and principle is reliable, and measurement result is accurate, easy to operate, can be widely used in building construction process the qualification of concrete ingredients and measurement.

Accompanying drawing illustrates:

Fig. 1 is agent structure principle schematic of the present invention.

Fig. 2 is the cross section structure principle schematic of the bitubular roller screen that the present invention relates to.

Embodiment:

Also be described further by reference to the accompanying drawings below by embodiment.

Embodiment:

The agent structure of the present embodiment comprises charging aperture 1, capacity line 2, first weight induction device 3, feeder hopper 4, the rotary screen 5 of 0.5mm screen cloth, the rotary screen 6 of 0.08mm screen cloth, liquid discharge outlet 7, discharge gate 8, second weight induction device 9, first discharge port 10, second discharge port 11, exterior display device 12, spectrum detection instrument 13 and motor 14; The below of charging aperture 1 is provided with 50L capacity line 2, and the below of capacity line 2 is fixedly shaped with concrete weight that the first weight induction device 3, first induction installation 4 measurement of inductance pours into from charging aperture 2 and concrete is sent into feeder hopper 4, and the capacity of feeder hopper 4 is 50L; The rotary screen 6 that feeder hopper 4 lower end is fixedly connected with the rotary screen 5 and 0.08mm screen cloth being shaped with 0.5mm screen cloth combines the bitubular roller screen formed, and the rotary screen 5 of 0.5mm screen cloth and the rotary screen 6 of 0.08mm screen cloth sift out stone in concrete and sand respectively; The right-hand member of the rotary screen 6 of 0.08mm screen cloth is fixedly connected with and is shaped with motor 14; The left end port of the rotary screen 5 of 0.5mm screen cloth and the rotary screen 6 of 0.08mm screen cloth is fixedly shaped with the second discharge port 11 and the first discharge port 10 respectively, the stone that the rotary screen 5 that second discharge port 11 discharges 0.5mm screen cloth sifts out, the sand that the rotary screen 6 that the first discharge port 10 discharges 0.08mm screen cloth sifts out; First discharge port 10 is fixedly connected with the second weight induction device 9 with the second discharge port 11, the weight of the sand that the second weight induction device 9 measurement of inductance first discharge port 10 and the second discharge port 11 are discharged and stone; Second weight induction device 9 lower end is fixedly shaped with discharge gate 8, and discharge gate 8 discharges sand and stone; The bottom of the rotary screen 6 of 0.08mm screen cloth is opened and is shaped with liquid discharge outlet 7, and unnecessary liquid is discharged by liquid discharge outlet 7; Spectrum detection instrument 13 is fixedly connected with the additive composition and ratio that detect and contain in concrete with the first weight induction device 3; The computing machine that the data recorded are transferred in exterior display device 12 by the first weight induction device 3 and the second weight induction device 9 carries out computational analysis according to the computation process of setting, realizes the situ appraisal to concrete ingredients.

The present embodiment realizes:

(1), extract the mixed concrete sample in working-yard, first in spectrum detection instrument 13, adopt existing spectrographic method analysis to draw composition and the ratio of the additive existed in concrete;

(2) concrete sample of the working-yard, step (1) obtained is poured in the feeder hopper 4 of fixed capacity 50L, concrete weight is obtained by the first weight induction device 3, pour wash-down water into from charging aperture 1 to wash away concrete simultaneously, obtain the potpourri of concrete and water;

(3), by the potpourri of concrete and water filter out stone and sand respectively by the rotary screen 5 of 0.5mm screen cloth and the rotary screen 6 of 0.08mm screen cloth, and measure the weight of saturated water suction stone and saturated water suction sand respectively by the second weight induction device 9;

(4), by the mass transport of the concrete obtained, saturated water suction stone and saturated water suction sand to exterior display device 12, drawn the weight of stone in concrete, sand, cement and water by the computer calculate in exterior display device 12, complete the situ appraisal to concrete ingredients.

The detailed process of the computer calculate involved by the present embodiment is: the natural moisture content of stone and sand is respectively W _g, W _s, apparent density is respectively ρ ' _g, ρ ' _s, stone and sand apparent density is in the dry state respectively ρ _g, ρ _s, then the volume of stone and sand is respectively:

$V_G=\frac{M_G}{{\mathrm{\ρ}}_G^{\′}}=\frac{1+W_G{\mathrm{\ρ}}_G}{{\mathrm{\ρ}}_G+W_G{\mathrm{\ρ}}_G}{M}_G=A_1{M}_G---\left(1\right)$

$V_S=\frac{M_S}{{\mathrm{\ρ}}_S^{\′}}=\frac{1+W_S{\mathrm{\ρ}}_S}{{\mathrm{\ρ}}_S+W_S{\mathrm{\ρ}}_S}{M}_S=B_1{M}_S---\left(2\right)$

M in formula _g, M _sbe respectively stone and sand weight in its natural state; Formula (1) and formula (2) are substituted into formula (3) M _c+ M _w+ M _g+ M _s=M and formula (4) V _c+ V _w+ V _g+ V _sin=V, obtain formula (5) and formula (6):

$V_c=\frac{M-V-(1-A_1{M}_G)-(1-B_1)M_S}{{\mathrm{\ρ}}_C-1}---\left(5\right)$

V _W=V-A ₁M _G-B ₁M _S-V _C (6)

Wherein M _c=ρ _cv _c, M _w=ρ _wv _w, M _cfor cement weight, ρ _cfor cement density, V _cfor cement volume, M _wfor the weight of water, ρ _wfor the density of water, V _wfor the volume of water; Consider the existence of the saturated water absorption after the content of stone and sand and water punching, derive M _g, M _sscreen over-size M ' after rushing with water _g, M ' _srelation, if the saturated water absorption of stone and silt content are respectively W _g' and Q _g, saturated water absorption and the silt content of sand are respectively W _s' and Q _s, then to stone definition silt content be so, obtain formula (7):

$M_G=\frac{1+W_G}{(1+W_G^{\′})(1-Q_G)}{M}_G^{\′}=A_2{M}_G^{\′}---\left(7\right)$

In like manner, formula (8) is obtained:

$M_S=\frac{1+W_S}{(1+W_S^{\′})(1-Q_S)}{M}_S^{\′}=B_2{M}_S^{\′}---\left(8\right)$

Formula (7) and formula (8) are substituted into formula (5) and formula (6) obtains

$V_C=\frac{M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}}{{\mathrm{\ρ}}_C-1}$

V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

Then can draw the computing formula of each component in concrete, namely

$M_C=\frac{{\mathrm{\ρ}}_C}{({\mathrm{\ρ}}_C-1)}[M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}]$

M _W=V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

M _G=A ₂M′ _G

M _S=B ₂M′ _S。

Claims (3)

1. an identification apparatus for concrete ingredients, is characterized in that agent structure comprises charging aperture, capacity line, the first weight induction device, feeder hopper, the rotary screen of 0.5mm screen cloth, the rotary screen of 0.08mm screen cloth, liquid discharge outlet, discharge gate, the second weight induction device, the first discharge port, the second discharge port, exterior display device, spectrum detection instrument and motor; The below of charging aperture is provided with capacity line, and the below of capacity line is fixedly shaped with the first weight induction device, and concrete is also sent into feeder hopper by the concrete weight that the first induction installation measurement of inductance is poured into from charging aperture, and the capacity of feeder hopper is 50L; The rotary screen that feeder hopper lower end is fixedly connected with rotary screen and the 0.08mm screen cloth being shaped with 0.5mm screen cloth combines the bitubular roller screen formed, and the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth sift out stone in concrete and sand respectively; The right-hand member of the rotary screen of 0.08mm screen cloth is fixedly connected with and is shaped with motor; The left end port of the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth is fixedly shaped with the second discharge port and the first discharge port respectively, the stone that the rotary screen that second discharge port discharges 0.5mm screen cloth sifts out, the sand that the rotary screen that the first discharge port discharges 0.08mm screen cloth sifts out; First discharge port is fixedly connected with the second weight induction device with the second discharge port, the weight of the sand that the second weight induction device measurement of inductance first discharge port and the second discharge port are discharged and stone; Second weight induction device lower end is fixedly shaped with discharge gate, and discharge gate discharges sand and stone; The bottom of the rotary screen of 0.08mm screen cloth is opened and is shaped with liquid discharge outlet, and unnecessary liquid is discharged by liquid discharge outlet; Spectrum detection instrument is fixedly connected with the additive composition and ratio that detect and contain in concrete with the first weight induction device; The computing machine that the data recorded are transferred in exterior display device by the first weight induction device and the second weight induction device carries out computational analysis according to the computation process of setting, realizes the situ appraisal to concrete ingredients.

2. the identification apparatus of concrete ingredients according to claim 1, is characterized in that the concrete technology step realized the situ appraisal of concrete admixture and concrete ingredients is:

(1), extract the mixed concrete sample in working-yard, first in spectrum detection instrument, adopt existing spectrographic method analysis to draw composition and the ratio of the additive existed in concrete;

(2) concrete sample of the working-yard, step (1) obtained is poured in the feeder hopper of fixed capacity 50L, concrete weight is obtained by the first weight induction device, pour wash-down water into from charging aperture to wash away concrete simultaneously, obtain the potpourri of concrete and water;

(3), by the potpourri of concrete and water filter out stone and sand respectively by the rotary screen of 0.5mm screen cloth and the rotary screen of 0.08mm screen cloth, and measure the weight of saturated water suction stone and saturated water suction sand respectively by the second weight induction device;

(4), by the mass transport of the concrete obtained, saturated water suction stone and saturated water suction sand to exterior display device, drawn the weight of stone in concrete, sand, cement and water by the computer calculate in exterior display device, complete the situ appraisal to concrete ingredients.

3. the identification apparatus of concrete ingredients according to claim 1, is characterized in that the detailed process of involved computer calculate is: the natural moisture content of stone and sand is respectively W _g, W _s, apparent density is respectively ρ ' _g, ρ ' _s, stone and sand apparent density is in the dry state respectively ρ _g, ρ _s, then the volume of stone and sand is respectively:

$V_G=\frac{M_G}{{\mathrm{\ρ}}_G^{\′}}=\frac{1+W_G{\mathrm{\ρ}}_G}{{\mathrm{\ρ}}_G+W_G{\mathrm{\ρ}}_G}{M}_G=A_1{M}_G---\left(1\right)$

$V_S=\frac{M_S}{{\mathrm{\ρ}}_S^{\′}}=\frac{1+W_S{\mathrm{\ρ}}_S}{{\mathrm{\ρ}}_S+W_S{\mathrm{\ρ}}_S}{M}_S=B_1{M}_S---\left(2\right)$

M in formula _g, M _sbe respectively stone and sand weight in its natural state; Formula (1) and formula (2) are substituted into formula (3) M _c+ M _w+ M _g+ M _s=M and formula (4) V _c+ V _w+ V _g+ V _sin=V, obtain formula (5) and formula (6):

$V_c=\frac{M-V-(1-A_1{M}_G)-(1-B_1)M_S}{{\mathrm{\ρ}}_C-1}---\left(5\right)$

V _W=V-A ₁M _G-B ₁M _S-V _C (6)

Wherein M _c=ρ _cv _c, M _w=ρ _wv _w, M _cfor cement weight, ρ _cfor cement density, V _cfor cement volume, M _wfor the weight of water, ρ _wfor the density of water, V _wfor the volume of water; Consider the existence of the saturated water absorption after the content of stone and sand and water punching, derive M _g, M _sscreen over-size M ' after rushing with water _g, M ' _srelation, if the saturated water absorption of stone and silt content are respectively W _g' and Q _g, saturated water absorption and the silt content of sand are respectively W _s' and Q _s, then to stone definition silt content be so, obtain formula (7):

$M_G=\frac{1+W_G}{(1+W_G^{\′})(1-Q_G)}{M}_G^{\′}=A_2{M}_G^{\′}---\left(7\right)$

In like manner, formula (8) is obtained:

$M_S=\frac{1+W_S}{(1+W_S^{\′})(1-Q_S)}{M}_S^{\′}=B_2{M}_S^{\′}---\left(8\right)$

Formula (7) and formula (8) are substituted into formula (5) and formula (6) obtains

$V_C=\frac{M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}}{{\mathrm{\ρ}}_C-1}$

V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

Then can draw the computing formula of each component in concrete, namely

$M_C=\frac{{\mathrm{\ρ}}_C}{({\mathrm{\ρ}}_C-1)}[M-V-(1-A_1)A_2{M}_G^{\′}-(1-B_1)B_2{M}_S^{\′}]$

M _W=V _W=V-A ₁A ₂M′ _G-B ₁B ₂M′ _S-V _C

M _G=A ₂M′ _G

M _S=B ₂M′ _S。