CN111309061A - Gypsum slurry consistency adjusting and controlling method and consistency detecting device - Google Patents
Gypsum slurry consistency adjusting and controlling method and consistency detecting device Download PDFInfo
- Publication number
- CN111309061A CN111309061A CN202010115527.4A CN202010115527A CN111309061A CN 111309061 A CN111309061 A CN 111309061A CN 202010115527 A CN202010115527 A CN 202010115527A CN 111309061 A CN111309061 A CN 111309061A
- Authority
- CN
- China
- Prior art keywords
- consistency
- slurry
- gypsum
- barrel
- gypsum slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
- G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/007—After-treatment of the dehydration products, e.g. aging, stabilisation
-
- 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
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/036—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln, i.e. to obtain beta-hemihydrate
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; ceramics; glass; bricks
Abstract
The embodiment of the invention discloses a gypsum slurry consistency adjusting and controlling method and a gypsum slurry consistency detecting device, which are characterized in that the consistency of gypsum slurry is detected firstly, whether the gypsum slurry is qualified is determined, and then the gypsum slurry is adjusted according to the consistency of the gypsum slurry, wherein the concrete steps of the gypsum slurry consistency adjustment are as follows: firstly, controlling indexes of crystal water, phase composition and specific surface area of the building gypsum; secondly, adding a water reducing agent; thirdly, adding a coagulation regulator; finally, by adding the foaming agent, the flow property of the slurry can be adjusted by the steps, so that the problems that the slurry is thick, the slurry and the lower protective paper cannot permeate well, the bonding property of the lower protective paper is influenced, and meanwhile, the slurry is thin, the slurry is prone to bleeding and foaming floating, the bonding property of upper paper near the edges of the gypsum board is influenced, and the edges are crisp are solved.
Description
Technical Field
The embodiment of the invention relates to the technical field of gypsum production, in particular to a gypsum slurry consistency adjusting and controlling method and a gypsum slurry consistency detecting device.
Background
Brief introduction of paper-surface gypsum board process flow: the wet and dry materials of building gypsum powder, modified starch, a coagulation regulator, a water reducing agent, a foaming agent, water and the like are fed into a stirrer through metering and conveying equipment, are stirred into uniform slurry, are continuously poured between an upper layer of protective paper board and a lower layer of protective paper board, are subjected to extrusion forming to prepare a wet thistle board, and the wet thistle board is subjected to processes of solidification, cutting, drying, edge sawing, edge sealing, packaging and the like to prepare a thistle board finished product.
In the production of the paper-surface gypsum board, the thin and thick state of the gypsum slurry is difficult to control effectively, and the production quality problem can be caused when the thin and thick state of the gypsum slurry is poor, for example, the thick slurry can cause poor permeation between the slurry and the lower protective paper, and the bonding property of the lower protective paper is influenced; the thin slurry can cause the problems of bleeding and foaming floating of the slurry, and the water and the foaming weight are light and can diffuse to the edge part in the extrusion forming process, so that the bonding performance of paper on the edge of the gypsum board is influenced, and the problem of crisp edge is caused.
Disclosure of Invention
Therefore, the embodiment of the invention provides a gypsum slurry consistency adjusting and controlling method and a gypsum slurry consistency detecting device, which are used for solving the problem of production quality caused by difficulty in effective control of the thin and thick state of the gypsum slurry in the prior art.
In order to achieve the above object, an embodiment of the present invention provides the following:
a method for regulating and controlling the consistency of gypsum slurry comprises the following steps:
s100, detecting the consistency of the gypsum slurry, and determining whether the gypsum slurry is qualified;
s200, adjusting the consistency of the gypsum slurry according to the consistency of the gypsum slurry, wherein the concrete steps of adjusting the consistency of the gypsum slurry are as follows:
s201, controlling crystal water, phase composition and specific surface area indexes of the building gypsum;
s202, controlling the content of a water reducing agent, wherein under the condition that the water-paste ratio is not changed, the using amount of the water reducing agent is increased, or under the condition that the using amount of the water reducing agent is not changed, when the water-paste ratio is increased, the slurry fluidity is good, and the slurry becomes thin;
s203, controlling the content and proportion of the setting retarder, wherein the retarder and the setting accelerator are applied in a composite way, and when the using amount of the setting accelerator is reduced or the using amount of the retarder is increased, the fluidity of slurry is improved, and the slurry is thinned;
s204, controlling the content and the proportion of the foam regulator, wherein the stable foam regulator and the unstable foam regulator are compounded for use, and when the proportion of the unstable foam regulator is increased, the diameter of a foaming hole is increased, the fluidity of slurry is improved, and the slurry is thinned.
As a preferred scheme of the invention, the concrete steps of detecting the consistency of the gypsum slurry are;
s101, preparing a test table and a consistency barrel, and wiping the test table and the inner wall of the consistency barrel by using wet rags;
s102, placing the consistency barrel on a laboratory bench, taking the slurry before extrusion forming, scooping and pouring the slurry into the consistency barrel at one time, leveling the slurry by using a scraper after the slurry is full, and scraping redundant slurry;
s103, quickly and vertically lifting the consistency barrel upwards, completing the whole process within 5-8 seconds, and forming a material cake on the test bed by the slurry;
s104, measuring the spreading diameter of the material cake on the experiment table, measuring a maximum value and a minimum value, and taking the average value as the spreading diameter of the material cake;
and S105, judging whether the consistency of the gypsum slurry is qualified or not according to the spreading diameter of the material cake.
As a preferable scheme of the invention, the consistency barrel comprises a barrel body, the upper end of the outer wall of the barrel body is provided with a material receiving tray, the material receiving tray is in a basin shape, the bottom of the material receiving tray is lower than the upper end of the barrel body, the top of the material receiving tray is higher than the upper end of the barrel body, the barrel body is in a cylindrical shape with the upper and lower through, the inner diameter of the barrel body is 50mm, the outer diameter is 55-60mm, and the height is 100 mm.
As a preferred scheme of the invention, the consistency of the gypsum slurry is judged by the following steps:
s1051, setting a standard range and an optimal range of the spreading diameter of the material cake, wherein the standard range is 170-210 mm, and the optimal range is 185-195 mm;
s1052, if the spreading diameter of the material cake is lower than the standard range, judging that the consistency of the gypsum slurry is too high;
s1053, if the spreading diameter of the material cake is lower than the standard range, judging that the consistency of the gypsum slurry is too low;
s1054, if the spreading diameter of the material cake exceeds the optimal range and is within the standard range, judging that the consistency of the gypsum slurry is qualified;
and S1055, if the spreading diameter of the material cake is in the standard range, judging the consistency of the gypsum slurry to be optimal.
As a preferable embodiment of the present invention, in step S201, the concrete process of controlling the crystal water and the specific surface area index of the building gypsum is:
s2011, adjusting the crystal water proportion of the building gypsum: calcining desulfurized gypsum with the grade of about 90 percent in a fluidized bed furnace to prepare building gypsum, wherein the calcining temperature is controlled to be 145-160 ℃, so that the crystal water is controlled to be 5 +/-0.5 percent, wherein the crystal water is reduced within the range of 3.5-6.5 percent, the standard thickening water consumption can be reduced, the slurry fluidity is high, and the slurry is thinned;
s2012, adjusting the specific surface area of the building gypsum: grinding the building gypsum by using a ball mill with the diameter of 1.83 x 7m and adding 6 tons of grinding bodies (high-chromium steel sections with the diameter of 16-30 x 18-35), controlling the specific surface area by adjusting the weight of the grinding bodies of the ball mill, and controlling the specific surface area of the building gypsum to be 3500-5000 cm2/g, wherein when the specific surface area of the building gypsum is controlled to be 3500-5000 cm2/g, the specific surface area is increased, the water consumption for thickening can be reduced, the slurry fluidity is improved, and the spreading diameter of a cake is increased.
As a preferable aspect of the present invention, in step S2011, the calcination process is performed by connecting 2 fluidized beds in series, the calcination process is performed in the first fluidized bed furnace to remove the adhering water and part of the crystal water, and then most of the crystal water is removed in the second fluidized bed furnace to generate the building gypsum containing the hemihydrate gypsum as the main component, wherein the composition ratio of the generated building gypsum is as follows: anhydrous gypsum less than 5%, semi-hydrated gypsum more than 75% and dihydrate gypsum less than 2%.
The embodiment also provides a consistency detection device for regulating and controlling the consistency of gypsum slurry, which comprises a test table and a consistency barrel, wherein the test table is provided with a quick lifting device for quickly lifting the consistency barrel, the consistency barrel comprises a cylindrical barrel body which is communicated up and down, the upper end of the outer wall of the barrel body is provided with a basin-shaped material receiving tray, the edge of the upper end of the material receiving tray is provided with a connecting ring, and the connecting ring is provided with an electric magnetic attraction ring;
the quick lifting device comprises an elevating plate arranged above the consistency barrel, the elevating plate is fixed on the experiment table through a support, a driving plate is arranged in parallel below the elevating plate, the elevating plate is connected with the driving plate through a reset spring, a driving ring is arranged at the edge of the lower end of the driving plate, the driving ring is located right above the connecting ring, and the driving ring is connected with a fixed magnetic attraction ring.
As a preferable scheme of the present invention, a lifting cylinder is disposed on a lower end surface of the elevating plate, the lifting cylinder is inserted between the return springs, an output end of the lifting cylinder is vertically downward, and the driving plate is pushed to move downward when the lifting cylinder extends out.
As a preferred scheme of the invention, a plurality of fixing frames are arranged around the consistency barrel, a stabilizing cylinder is arranged on each fixing frame, the output end of each stabilizing cylinder is perpendicular to the side wall of the consistency barrel and is provided with a stabilizing roller, a limiting cylinder is arranged at the top of each fixing frame, and the output end of each limiting cylinder is perpendicular to the side wall of the consistency barrel and is provided with a limiting rod.
As a preferred scheme of the present invention, a rotating motor is disposed at the center of the lower end surface of the driving plate, an output shaft of the rotating motor is vertically downward and connected to a scraper plate, and when the lifting cylinder drives the driving plate to descend to the point where the electric magnetic attracting ring contacts the fixed magnetic attracting ring, the scraper plate contacts with the upper end of the consistency barrel
The embodiment of the invention has the following advantages:
according to the invention, by controlling the crystal water, phase composition and specific surface area index of the building gypsum, adding the water reducing agent, adding the coagulation regulator and adding the foaming agent, the flow property of the slurry can be adjusted, so that the problems that the slurry and the lower protective paper have poor permeability and the bonding property of the lower protective paper is influenced due to thick slurry can be avoided, and the problems that the slurry is bleeding and foamed and floated due to thin slurry, the bonding property of the upper paper near the edge of the gypsum board is influenced and the edge is crisp are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic flow chart of a method for controlling the consistency of gypsum slurry according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a consistency barrel in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a quick lifting device according to an embodiment of the present invention.
In the figure:
1-a laboratory bench; 2-consistency barrel; 3-a quick lifting device;
201-barrel body; 202-a receiving tray; 203-connecting ring; 204-electric magnetic attracting ring;
301-elevated plate; 302-a drive plate; 303-a return spring; 304-drive ring; 305-fixing a magnetic attracting ring; 306-a lifting cylinder; 307-a mount; 308-a stabilization cylinder; 309-stabilizing the roller; 310-limit air cylinder; 311-a limiting rod; 312 — a rotating motor; 313-doctor blade.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the embodiment of the invention provides a gypsum slurry consistency adjusting and controlling method, which comprises the following steps:
s100, detecting the consistency of the gypsum slurry, and determining whether the gypsum slurry is qualified;
and S200, adjusting the consistency of the gypsum slurry according to the consistency of the gypsum slurry.
The method comprises the following steps of (1) detecting the consistency of gypsum slurry;
s101, preparing a test table 1 and a consistency barrel 2, and wiping the inner walls of the test table 1 and the consistency barrel 2 with wet rags;
s102, placing the consistency barrel 2 on a laboratory bench, taking the slurry before extrusion forming, scooping and pouring the slurry into the consistency barrel 2 at one time, scraping the slurry by using a scraper after the slurry is full, and scraping redundant slurry;
s103, quickly and vertically lifting the consistency barrel 2 upwards, finishing the whole process within 5-8 seconds, and forming a material cake on the test bed by the slurry;
s104, measuring the spreading diameter of the material cake on the experiment table, measuring a maximum value and a minimum value, and taking the average value as the spreading diameter of the material cake;
and S105, judging whether the consistency of the gypsum slurry is qualified or not according to the spreading diameter of the material cake.
As shown in fig. 2, in the present embodiment, the consistency barrel 2 includes a barrel 201, a material receiving tray 202 is disposed at an upper end of an outer wall of the barrel 201, the material receiving tray 202 is in a basin shape, a bottom of the material receiving tray 202 is lower than an upper end of the barrel 201, a top of the material receiving tray 201 is higher than the upper end of the barrel 201, the barrel 201 is in a cylindrical shape penetrating up and down, an inner diameter of the barrel 201 is 50mm, an outer diameter is 55-60mm, and a height is 100 mm.
According to the size of the barrel body 201, the consistency of the gypsum slurry is judged by the following steps:
s1051, setting a standard range and an optimal range of the spreading diameter of the material cake, wherein the standard range is 170-210 mm, and the optimal range is 185-195 mm;
s1052, if the spreading diameter of the material cake is lower than the standard range, judging that the consistency of the gypsum slurry is too high;
s1053, if the spreading diameter of the material cake is lower than the standard range, judging that the consistency of the gypsum slurry is too low;
s1054, if the spreading diameter of the material cake exceeds the optimal range and is in the standard range, judging that the consistency of the gypsum slurry is qualified;
s1055, if the spreading diameter of the material cake is in the standard range, judging the consistency of the gypsum slurry to be optimal.
In the embodiment, the concrete steps of the consistency adjustment of the gypsum slurry are as follows:
s201, controlling crystal water, phase composition and specific surface area indexes of the building gypsum;
s202, reducing the water-paste ratio by adding a water reducing agent, and improving the slurry fluidity, wherein the using amount of the water reducing agent is increased under the condition that the water-paste ratio is not changed, or the slurry fluidity is improved and the slurry is thinned when the water-paste ratio is increased under the condition that the using amount of the water reducing agent is not changed;
s203, improving the fluidity of the slurry by adding a setting retarder, wherein the retarder and the setting accelerator are applied in a composite way, and when the using amount of the setting accelerator is reduced or the using amount of the retarder is increased, the fluidity of the slurry is improved, and the slurry is thinned;
s204, adding a foaming agent to improve the fluidity of the slurry, wherein the stable foaming agent and the unstable foaming agent are compounded for use, and when the proportion of the unstable foaming agent is increased, the diameter of a foaming hole is increased, the fluidity of the slurry is improved, and the slurry is thinned.
The concrete process for controlling the crystal water and the specific surface area index of the building gypsum comprises the following steps:
s2011, adjusting the crystal water proportion of the building gypsum: calcining desulfurized gypsum with the grade of about 90 percent in a fluidized bed furnace to prepare building gypsum, wherein the calcining temperature is controlled to be 145-160 ℃, so that the crystal water is controlled to be 5 +/-0.5 percent, wherein the crystal water is reduced within the range of 3.5-6.5 percent, the standard thickening water consumption can be reduced, the slurry fluidity is high, and the slurry is thinned;
s2012, adjusting the specific surface area of the building gypsum: grinding the building gypsum by using a ball mill with the diameter of 1.83 x 7m and adding 6 tons of grinding bodies (high-chromium steel sections with the diameter of 16-30 x 18-35), controlling the specific surface area by adjusting the weight of the grinding bodies of the ball mill, and controlling the specific surface area of the building gypsum to be 3500-5000 cm2/g, wherein when the specific surface area of the building gypsum is controlled to be 3500-5000 cm2/g, the specific surface area is increased, the water consumption for thickening can be reduced, the slurry fluidity is improved, and the spreading diameter of a cake is increased.
In step S2011 of the present embodiment, the calcination process is performed by connecting 2 fluidized beds in series, the calcination is performed in the first fluidized bed furnace to remove the adhering water and part of the crystal water, and then the most of the crystal water is removed in the second fluidized bed furnace to generate the building gypsum containing the semi-hydrated gypsum as the main component, wherein the composition ratio of the generated building gypsum is as follows: anhydrous gypsum less than 5%, semi-hydrated gypsum more than 75% and dihydrate gypsum less than 2%.
By the method, the flowing property of the slurry can be adjusted, the problems that the slurry is thick, the slurry and the lower protective paper cannot permeate well, the bonding property of the lower protective paper is influenced, and the slurry is thin, the bleeding and foaming floating of the slurry are caused, the bonding property of upper paper near the edges of the gypsum board is influenced, and the edges are crisp are solved.
Further, as shown in fig. 2 and fig. 3, the embodiment further provides a consistency detection device for gypsum slurry consistency adjustment control, which includes a test bench 1 and a consistency barrel 2, the test bench 1 is provided with a quick lifting device 3 for quickly lifting the consistency barrel 2, the consistency barrel 2 includes a cylindrical barrel body 201 which is through from top to bottom, the upper end of the outer wall of the barrel body 201 is provided with a basin-shaped receiving tray 202, the upper end edge of the receiving tray 202 is provided with a connection ring 203, the connection ring 203 is provided with an electric magnetic attraction ring 204, the quick lifting device 3 includes an elevated plate 301 which is arranged above the consistency barrel 2, the elevated plate 301 is fixed on the test bench 1 through a bracket, a driving plate 302 is arranged in parallel below the elevated plate 301, the elevated plate 301 is connected with the driving plate 302 through a return spring 303, the lower end edge of the driving plate 302 is provided with a driving ring 304, the driving ring 304 is located right above the connection, and a fixed magnetic attachment ring 305 is attached to drive ring 304.
As shown in fig. 3, in this embodiment, a lifting cylinder 306 is disposed on a lower end surface of the elevating plate 301, the lifting cylinder 306 is disposed between the return springs 303, an output end of the lifting cylinder 306 is vertically downward and pushes the driving plate 302 to move downward when extending, a plurality of fixing frames 307 are disposed around the consistency barrel 2, a stabilizing cylinder 308 is disposed on the fixing frame 307, an output end of the stabilizing cylinder 308 is perpendicular to a sidewall of the consistency barrel 2 and is provided with a stabilizing roller 309, a limiting cylinder 310 is disposed on a top of the fixing frame 307, and an output end of the limiting cylinder 310 is perpendicular to the sidewall of the consistency barrel 2 and is provided with a limiting rod 311.
Meet full ground paste at consistency bucket 2 after, lift cylinder 306's output stretches out, promote drive plate 302 and remove downwards, make reset spring 303 tensile, it inhales the ring 204 to reduce to inhale the ring 305 with fixed magnetism after contacting at electronic magnetism, electronic magnetism is inhaled the ring 204 circular telegram and is possessed magnetism, and inhale the magnetism of ring 305 with fixed magnetism and make the two attraction together on the contrary, then the output of stabilizing cylinder 308 stretches out, make stabilizing roller 309 and consistency bucket 2's lateral wall contact, when consistency bucket 2 reciprocates like this, stabilizing roller 309's setting can promote consistency bucket 2's stability, thereby make the ground paste fall smoothly on laboratory bench 1, and the cake that forms does not receive the interference, guarantee to detect the precision.
In this embodiment, the stabilizing roller 309 is fixed on the output end of the stabilizing cylinder 308 through a bracket, the bracket is in a herringbone structure, the tail end of the bracket is provided with at least two stabilizing rollers 309, and the two stabilizing rollers 309 are arranged up and down, so that the stabilizing capability can be improved, and the stability of the consistency barrel 2 can be improved.
When the action of the cylinder 308 is stabilized in the process, the output end of the limiting cylinder 310 extends out synchronously, so that the limiting rod 311 extends to the top of the drive plate 302, the lower end face of the limiting rod 311 is tightly attached to the upper end face of the drive plate 302, then the output end of the lifting cylinder 306 retracts, at the moment, the drive plate 302 is kept at the original position under the stretching of the reset spring 303 and the limiting effect of the limiting rod 311, when the output end of the limiting cylinder 310 retracts, the drive plate 302 can move upwards quickly under the tension effect of the reset spring 303 under the condition of being separated from the limiting of the limiting rod 311, and therefore the consistency barrel 2 is driven to ascend quickly, slurry is poured onto the experiment table 1, and material cakes are formed.
This embodiment is through setting up quick lifting device 3, stabilizing roller 309 can promote the stability of consistency bucket 2, make the ground paste pour on laboratory bench 1 smoothly, and the cake that forms does not receive the interference, guarantee to detect the precision, the setting up of gag lever post 311 can make lift cylinder 306 drive control to drive plate 302 and reset spring 303 drive control to drive plate 302 separately, utilize lift cylinder 306 to deliver drive plate 302 to preset position, recycle reset spring 303's reset characteristic, make consistency bucket 2 shift up fast, reduce the rise time of consistency bucket 2, avoid cake formation process to receive the interference, guarantee to detect the precision.
Meanwhile, as shown in fig. 3, the center of the lower end face of the driving plate 302 in this embodiment is provided with a rotating motor 312, the output shaft of the rotating motor 312 is vertically downward and is connected with a scraper plate 313, when the lifting cylinder 306 drives the driving plate 302 to descend to the contact between the electric magnetic attraction ring 204 and the fixed magnetic attraction ring 305, the scraper plate 313 is in contact with the upper end of the consistency barrel 2, the rotating motor 312 works to drive the scraper plate 313 to rotate, thereby scraping off the right slurry on the consistency barrel 2, and being thrown into the material receiving tray 201, the step of manually scraping off the slurry is omitted, the preparation time in the earlier stage is reduced, the slurry is prevented from being congealed and affecting the detection result, and the measurement accuracy is ensured.
In this embodiment, can place a toughened glass board in advance on the laboratory bench 1, the ground paste falls on this toughened glass board, can take out the convenient measurement cake diameter, keeps the cleanness of laboratory bench 1 simultaneously, like this when carrying out a lot of measurements, only need in time change the toughened glass board can, avoided clean laboratory bench 1 time delayed, promote detection efficiency.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A method for regulating and controlling the consistency of gypsum slurry is characterized by comprising the following steps:
s100, detecting the consistency of the gypsum slurry, and determining whether the gypsum slurry is qualified;
s200, adjusting the consistency of the gypsum slurry according to the consistency of the gypsum slurry, wherein the concrete steps of adjusting the consistency of the gypsum slurry are as follows:
s201, controlling crystal water, phase composition and specific surface area indexes of the building gypsum;
s202, controlling the content of a water reducing agent, wherein under the condition that the water-paste ratio is not changed, the using amount of the water reducing agent is increased, or under the condition that the using amount of the water reducing agent is not changed, when the water-paste ratio is increased, the slurry fluidity is good, and the slurry becomes thin;
s203, controlling the content and proportion of the setting retarder, wherein the retarder and the setting accelerator are applied in a composite way, and when the using amount of the setting accelerator is reduced or the using amount of the retarder is increased, the fluidity of slurry is improved, and the slurry is thinned;
s204, controlling the content and the proportion of the foam regulator, wherein the stable foam regulator and the unstable foam regulator are compounded for use, and when the proportion of the unstable foam regulator is increased, the diameter of a foaming hole is increased, the fluidity of slurry is improved, and the slurry is thinned.
2. The method for regulating and controlling the consistency of the gypsum slurry as claimed in claim 1, wherein the step of detecting the consistency of the gypsum slurry comprises;
s101, preparing a test table (1) and a consistency barrel (2), and wiping the inner walls of the test table (1) and the consistency barrel (2) by using wet rags;
s102, placing the consistency barrel (2) on a laboratory bench, taking the slurry before extrusion forming, scooping and pouring the slurry into the consistency barrel (2) at one time, scraping the slurry by using a scraper after the slurry is full, and scraping redundant slurry;
s103, quickly and vertically lifting the consistency barrel (2) upwards, finishing the whole process within 5-8 seconds, and forming a material cake on the test bed by the slurry;
s104, measuring the spreading diameter of the material cake on the experiment table, measuring a maximum value and a minimum value, and taking the average value as the spreading diameter of the material cake;
and S105, judging whether the consistency of the gypsum slurry is qualified or not according to the spreading diameter of the material cake.
3. The gypsum slurry consistency adjusting and controlling method according to claim 2, wherein the consistency barrel (2) comprises a barrel body (201), a material receiving tray (202) is arranged at the upper end of the outer wall of the barrel body (201), the material receiving tray (202) is in a basin shape, the bottom of the material receiving tray (202) is lower than the upper end of the barrel body (201), the top of the material receiving tray (201) is higher than the upper end of the barrel body (201), the barrel body (201) is in a cylindrical shape with a through hole from top to bottom, the inner diameter of the barrel body (201) is 50mm, the outer diameter of the barrel body is 55-60mm, and the height of the barrel body is 100 mm.
4. The method for adjusting and controlling the consistency of the gypsum slurry as claimed in claim 3, wherein the step of judging the consistency of the gypsum slurry comprises the following steps:
s1051, setting a standard range and an optimal range of the spreading diameter of the material cake, wherein the standard range is 170-210 mm, and the optimal range is 185-195 mm;
s1052, if the spreading diameter of the material cake is lower than the standard range, judging that the consistency of the gypsum slurry is too high;
s1053, if the spreading diameter of the material cake is lower than the standard range, judging that the consistency of the gypsum slurry is too low;
s1054, if the spreading diameter of the material cake exceeds the optimal range and is within the standard range, judging that the consistency of the gypsum slurry is qualified;
and S1055, if the spreading diameter of the material cake is in the standard range, judging the consistency of the gypsum slurry to be optimal.
5. The method for controlling the consistency of the gypsum slurry as claimed in claim 1, wherein the concrete process of controlling the crystal water and the specific surface area index of the building gypsum in step S201 is as follows:
s2011, adjusting the crystal water proportion of the building gypsum: calcining desulfurized gypsum with the grade of about 90 percent in a fluidized bed furnace to prepare building gypsum, wherein the calcining temperature is controlled to be 145-160 ℃, so that the crystal water is controlled to be 5 +/-0.5 percent, wherein the crystal water is reduced within the range of 3.5-6.5 percent, the standard thickening water consumption can be reduced, the slurry fluidity is high, and the slurry is thinned;
s2012, adjusting the specific surface area of the building gypsum: grinding the building gypsum by using a ball mill with the diameter of 1.83 x 7m and adding 6 tons of grinding bodies (high-chromium steel sections with the diameter of 16-30 x 18-35), controlling the specific surface area by adjusting the weight of the grinding bodies of the ball mill, and controlling the specific surface area of the building gypsum to be 3500-5000 cm2/g, wherein when the specific surface area of the building gypsum is controlled to be 3500-5000 cm2/g, the specific surface area is increased, the water consumption for thickening can be reduced, the slurry fluidity is improved, and the spreading diameter of a cake is increased.
6. The method as claimed in claim 5, wherein the calcination process is performed in a series of 2 boilers in step S2011, the calcination process is performed in a first boiler to remove the attached water and part of the crystal water, and then the second boiler removes most of the crystal water, so as to produce the building gypsum with the semi-hydrated gypsum as the main component, wherein the building gypsum is produced according to the following composition ratio: anhydrous gypsum less than 5%, semi-hydrated gypsum more than 75% and dihydrate gypsum less than 2%.
7. The consistency detection device for gypsum slurry consistency regulation and control is characterized by comprising an experiment table (1) and a consistency barrel (2), wherein the experiment table (1) is provided with a quick lifting device (3) for quickly lifting the consistency barrel (2), the consistency barrel (2) comprises a cylindrical barrel body (201) which is communicated from top to bottom, the upper end of the outer wall of the barrel body (201) is provided with a basin-shaped material receiving tray (202), the upper end edge of the material receiving tray (202) is provided with a connecting ring (203), and the connecting ring (203) is provided with an electric magnetic suction ring (204);
raise device (3) fast including setting up elevating plate (301) of consistency bucket (2) top, elevating plate (301) are fixed through the support on laboratory bench (1), elevating plate (301) below parallel is provided with drive plate (302), elevating plate (301) with link to each other through reset spring (303) between drive plate (302), the lower extreme edge of drive plate (302) is provided with drive ring (304), drive ring (304) are located directly over go-between (203), just drive ring (304) are connected with fixed magnetism and inhale ring (305).
8. The consistency detecting device for the consistency adjustment and control of the gypsum slurry as recited in claim 7, wherein a lifting cylinder (306) is disposed on the lower end surface of the elevated plate (301), the lifting cylinder (306) is disposed between the return springs (303), and the output end of the lifting cylinder (306) is vertically downward and pushes the driving plate (302) to move downward when extending.
9. The consistency detection device for gypsum slurry consistency adjustment and control according to claim 8, wherein a plurality of fixing frames (307) are arranged around the consistency barrel (2), a stabilizing cylinder (308) is arranged on each fixing frame (307), the output end of each stabilizing cylinder (308) is perpendicular to the side wall of the consistency barrel (2) and is provided with a stabilizing roller (309), the top of each fixing frame (305) is provided with a limiting cylinder (310), and the output end of each limiting cylinder (310) is perpendicular to the side wall of the consistency barrel (2) and is provided with a limiting rod (311).
10. The consistency detection device for gypsum slurry consistency adjustment control according to claim 9, characterized in that a rotating motor (312) is arranged at the center of the lower end surface of the driving plate (302), an output shaft of the rotating motor (312) is vertically downward and is connected with a scraper plate (313), and when the lifting cylinder (306) drives the driving plate (302) to descend to the point where the electric magnetic attraction ring (204) contacts with the fixed magnetic attraction ring (305), the scraper plate (313) contacts with the upper end of the consistency barrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115527.4A CN111309061B (en) | 2020-02-25 | 2020-02-25 | Gypsum slurry consistency adjusting and controlling method and consistency detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010115527.4A CN111309061B (en) | 2020-02-25 | 2020-02-25 | Gypsum slurry consistency adjusting and controlling method and consistency detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111309061A true CN111309061A (en) | 2020-06-19 |
| CN111309061B CN111309061B (en) | 2022-02-01 |
Family
ID=71149273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010115527.4A Active CN111309061B (en) | 2020-02-25 | 2020-02-25 | Gypsum slurry consistency adjusting and controlling method and consistency detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111309061B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725197A (en) * | 2009-11-06 | 2010-06-09 | 马兆林 | Method for on-site casting molding of gypsum internal partition wall |
| CN105737902A (en) * | 2016-04-18 | 2016-07-06 | 中南大学 | Experimental test system for phosphogypsum filling, stirring and pumping integrated endless tube |
| CN107082618A (en) * | 2010-10-11 | 2017-08-22 | 巴斯夫聚合建材有限公司 | Gypsum slurry containing dispersant |
| CN108530007A (en) * | 2018-06-15 | 2018-09-14 | 德华兔宝宝装饰新材股份有限公司 | A kind of indoor formaldehyde decomposes Thistle board and preparation method thereof |
| CN109133825A (en) * | 2017-06-28 | 2019-01-04 | 北新集团建材股份有限公司 | A kind of hard-edge plasterboard and preparation method thereof |
| CN109694228A (en) * | 2017-10-23 | 2019-04-30 | 北新集团建材股份有限公司 | A kind of gypsum based self-leveling mortar and preparation method thereof and gypsum based self-leveling slurry |
| CN109704712A (en) * | 2019-03-13 | 2019-05-03 | 中南大学 | A method of filling phosphorous gypsum process phosphorus, which is reduced, using Modified Quartz Sand pollutes |
| US10415370B2 (en) * | 2014-08-26 | 2019-09-17 | Halliburton Energy Services, Inc. | Systems and methods for in situ monitoring of cement slurry locations and setting processes thereof |
| CN110585886A (en) * | 2019-10-25 | 2019-12-20 | 武汉凯迪电力环保有限公司 | High-efficiency grading composite desulfurizing tower with control system |
| CN110759692A (en) * | 2018-07-27 | 2020-02-07 | 北新集团建材股份有限公司 | Gypsum board with improved bonding performance and preparation method thereof |
-
2020
- 2020-02-25 CN CN202010115527.4A patent/CN111309061B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725197A (en) * | 2009-11-06 | 2010-06-09 | 马兆林 | Method for on-site casting molding of gypsum internal partition wall |
| CN107082618A (en) * | 2010-10-11 | 2017-08-22 | 巴斯夫聚合建材有限公司 | Gypsum slurry containing dispersant |
| US10415370B2 (en) * | 2014-08-26 | 2019-09-17 | Halliburton Energy Services, Inc. | Systems and methods for in situ monitoring of cement slurry locations and setting processes thereof |
| CN105737902A (en) * | 2016-04-18 | 2016-07-06 | 中南大学 | Experimental test system for phosphogypsum filling, stirring and pumping integrated endless tube |
| CN109133825A (en) * | 2017-06-28 | 2019-01-04 | 北新集团建材股份有限公司 | A kind of hard-edge plasterboard and preparation method thereof |
| CN109694228A (en) * | 2017-10-23 | 2019-04-30 | 北新集团建材股份有限公司 | A kind of gypsum based self-leveling mortar and preparation method thereof and gypsum based self-leveling slurry |
| CN108530007A (en) * | 2018-06-15 | 2018-09-14 | 德华兔宝宝装饰新材股份有限公司 | A kind of indoor formaldehyde decomposes Thistle board and preparation method thereof |
| CN110759692A (en) * | 2018-07-27 | 2020-02-07 | 北新集团建材股份有限公司 | Gypsum board with improved bonding performance and preparation method thereof |
| CN109704712A (en) * | 2019-03-13 | 2019-05-03 | 中南大学 | A method of filling phosphorous gypsum process phosphorus, which is reduced, using Modified Quartz Sand pollutes |
| CN110585886A (en) * | 2019-10-25 | 2019-12-20 | 武汉凯迪电力环保有限公司 | High-efficiency grading composite desulfurizing tower with control system |
Non-Patent Citations (2)
| Title |
|---|
| 赵云龙，等: "《石膏干混建材生产及应用技术》", 30 November 2016 * |
| 赵立群，等: "《新型墙体材料生产与应用》", 30 June 2014 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111309061B (en) | 2022-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2370470C2 (en) | Method of producing products from sintered amorphous silicon dioxide, mould and slip used in aforesaid method | |
| CN111309061B (en) | Gypsum slurry consistency adjusting and controlling method and consistency detecting device | |
| EA021447B1 (en) | Starch pre-dispersion preparation system and method for gypsum board production | |
| CN105254264A (en) | Processing method used for increasing Nixing pottery plaster mold strength | |
| CN107214811A (en) | Prepare the integrated production line of concrete product | |
| CN114236169B (en) | System and method for judging critical suspension rotating speed of stirring paddle in solid-liquid two-phase stirring kettle | |
| CN110002804A (en) | It is a kind of based on wrap up in slurry thickness celluar concrete slurry design method | |
| CA2946371C (en) | Gypsum hardened body, gypsum panel, method for manufacturing gypsum hardened body, and method for manufacturing gypsum board | |
| CN112062528A (en) | Self-leveling phosphogypsum material | |
| CN208088792U (en) | A kind of thick coating wet film squeegee apparatus | |
| CN212978783U (en) | Quantitative mixing equipment for water permeable brick production | |
| CN210525476U (en) | A raw material mixing device for cement product production | |
| CN110954682B (en) | Method for detecting water retention of gypsum mortar | |
| SE435049B (en) | putty | |
| CN113758829A (en) | Test method for rapidly determining water demand ratio of fly ash | |
| CN215827884U (en) | Unfired brick automatic blending feed opening clout detection device | |
| EP1207384A3 (en) | Method and device for determining the moisture content and workability of a granular material | |
| CN106832144A (en) | A kind of polyether-type poly carboxylic acid series water reducer and preparation method thereof and application method | |
| CN116023117B (en) | Ceramic rock plate suitable for close joint paving and preparation method thereof | |
| CN220150947U (en) | Asphalt pavement inverted manhole cover installation elevation controller | |
| CN214323683U (en) | Casting machine lifting device | |
| CN114436561B (en) | Pore grouting agent | |
| JPH11123711A (en) | Material for molding gypsum mold and gypsum mold | |
| CN219027896U (en) | Several gypsum board limit portion leveling device | |
| CN216919900U (en) | Concrete paving equipment for building engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |