CN117309825A - Light-transmitting device for detecting methylene blue MB value - Google Patents
Light-transmitting device for detecting methylene blue MB value Download PDFInfo
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- CN117309825A CN117309825A CN202311619137.0A CN202311619137A CN117309825A CN 117309825 A CN117309825 A CN 117309825A CN 202311619137 A CN202311619137 A CN 202311619137A CN 117309825 A CN117309825 A CN 117309825A
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- rotating shaft
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- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 238000001514 detection method Methods 0.000 claims abstract description 49
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
Abstract
The invention discloses a device for detecting a methylene blue MB value through light, which relates to the technical field of machine-made sand MB value measurement and comprises a methylene blue detection table and a base table arranged below the methylene blue detection table, wherein the base table is provided with a first motor and a second motor which are vertically oriented, the second motor is arranged below the first motor, a rotating shaft of the first motor is a tubular rotating shaft, the rotating shaft of the second motor is sleeved in the rotating shaft of the first motor, the rotating shaft of the second motor is connected with a screw rod, and the screw rod is arranged above the rotating shaft of the second motor and coaxial with the rotating shaft of the second motor; through the sleeving of the first motor and the second motor, the projection of the driving part on the vertical surface is smaller, the size of the power driving part is small, the occupied volume of the equipment is effectively reduced, the on-site detection of machine-made sand is greatly convenient, and meanwhile, the equipment has the capability of simultaneously detecting MB values of multiple machine-made sand through the synchronous detection design of the multiple machine-made sand.
Description
Technical Field
The invention relates to the technical field of machine-made sand MB value measurement, in particular to equipment for light transmission detection of methylene blue MB value.
Background
Methylene Blue (MB) assay is a conventional test method for assessing the active clay content in machine-made sand; the basic principle of the test method is that methylene blue can be combined with negative charges in the active clay, so that the active clay is dyed blue; by measuring the color depth of the dyed sample, the active clay content in the sample can be calculated.
Conventional methylene blue assay methods typically include the following steps: firstly, mixing a sample with a methylene blue solution with a certain concentration, standing for a period of time to enable the methylene blue to fully react with active clay, and then, observing the color depth of the sample to calculate the content of the active clay in the sample; the disadvantage of this approach is that the results may be affected by artifacts, such as subjective judgment of the observer, etc.;
in contrast, the laser measurement method is a method for measuring the MB value of the machine-made sand by using a laser technique. The basic principle of the method is that methylene blue dye is dissolved in liquid and mixed with sand sample to form methylene blue solution, laser irradiates the solution, part of light is absorbed by the methylene blue dye in the solution, the rest light penetrates through the solution, and the light absorptivity of the solution can be calculated by measuring the laser intensity after penetrating through the solution, so that the active clay content in the machine-made sand can be calculated; the method has the advantages of high result accuracy, no influence of human factors and high measurement speed.
In addition, the machine-made sand methylene blue measurement is mainly used for evaluating the quality of sand molds or sand cores; such measurements require in some scenarios the measurement of methylene blue MB values for a variety of machine sands, for example, in the casting process of a casting plant, which are critical materials for producing castings; before casting, the quality of the machine-made sand needs to be determined to ensure the quality of the casting, and as the casting may need to use different kinds of machine-made sand, various machine-made sand may need to be determined; in the development of new materials in research laboratories, it may be necessary to perform methylene blue measurements on a number of different machine-made sands in order to understand and compare their properties; in the production and distribution of machine-made sand, methylene blue measurements may be required for various machine-made sand for quality control and inspection.
Therefore, it is necessary to develop a laser detection device that can simultaneously measure MB values of a plurality of methylene blue solutions.
Disclosure of Invention
The invention aims to provide a device for detecting the MB value of methylene blue through light, so as to solve the problems.
The invention is realized by the following technical scheme:
generally, a light-transmitting device for detecting the MB value of methylene blue comprises a methylene blue detection table and a base table arranged below the methylene blue detection table, wherein the base table is provided with a first motor and a second motor which face vertically, the second motor is arranged below the first motor, a rotating shaft of the first motor is a tubular rotating shaft, the rotating shaft of the second motor is sleeved in the rotating shaft of the first motor, the rotating shaft of the second motor is connected with a screw rod, and the screw rod is arranged above the rotating shaft of the second motor and coaxial with the rotating shaft of the second motor; through sleeving the first motor and the second motor, the projection of the driving part on the vertical surface is smaller, the volume of the power driving part is small, the occupied volume of the equipment is effectively reduced, and the machine-made sand field detection is greatly convenient;
further, the base station is also provided with a second wafer, the first motor and the second motor are fixed below the second wafer, the circumference of the bottom of the second wafer is also provided with a plurality of vertical supporting legs, the plurality of supporting legs are arranged around the first motor, and a vertical upward sliding rod is also arranged above the side of the second wafer; the tubular rotating shaft of the first motor and the rotating shaft of the second motor upwards penetrate through the second circular sheet; the first motor and the second motor are better fixed through the second wafer;
further, the methylene blue detection table is provided with a cylindrical shell, a nut is arranged at the central axis position of the cylindrical shell, the nut is arranged on the screw rod in a coupling mode, a vertical slide tube is fixed on the side of the cylindrical shell, the slide rod is sleeved in the slide tube, and the screw rod can be driven to slide vertically upwards by rotating the screw rod; the rotation of the methylene blue detection table is limited through the slide tube, and then the detection table is driven to slide in a rotating way by matching with the screw rod;
preferably, a gear set is further arranged on the second disc, the gear set is provided with a first driving gear, the first driving gear is horizontally arranged, the first driving gear is connected with the tubular rotating shaft and is coaxial with the tubular rotating shaft, the first driving gear is also circumferentially meshed with a plurality of identical second driven gears, the axis of each second driven gear is identical to that of the first driving gear, a rotating shaft is arranged at the bottom of each second driven gear, the rotating shaft is hinged to the second disc, the first driving gear can drive the second driven gear to rotate on the second disc, a permanent magnet with an upward plane is further fixed on the second driven gear, the second driven gear can drive the permanent magnet to rotate, a first disc is further arranged on the permanent magnet and is connected with the first disc through a connecting column, a gap is formed between the first disc and the permanent magnet, a through hole is formed in the axis position of the first disc, and a screw rod vertically upwards passes through the through hole; a plurality of measuring cups are also arranged on the first wafer, the measuring cups are arranged in one-to-one correspondence with the permanent magnets, the measuring cups are arranged on the permanent magnets, stirring rotors are also arranged in the measuring cups, the first gear rotates to drive the plurality of permanent magnets to rotate, and the permanent magnets can generate a rotating magnetic field to drive the stirring rotors in the measuring cups to rotate; through setting up the gear train and cooperating the drive of first motor, first can drive a plurality of second driven gear and rotate, and then drive a plurality of permanent magnets and rotate, the rotatory magnetic field that produces of permanent magnet rotation drives the stirring rotor in each measuring cup and rotates.
Preferably, the bottom of the methylene blue detection table is also circumferentially provided with a plurality of vertical downward suction pipes, the suction pipes are arranged in a one-to-one correspondence with the measuring cups, the suction pipes are arranged above the measuring cups vertically, the bottom openings of the suction pipes are provided with filter sheets, and the vertical upper ends of the suction pipes are communicated with the light-transmitting bottles; through set up the filter piece on the straw, when making the straw inhale the turbid liquid in the measuring cup, the filter piece can filter out silt, inhales the printing opacity bottle with the water purification.
Further, the upper end of the light-transmitting bottle is also connected with a pipeline which vertically upwards passes through the top of the methylene blue detection table, the pipeline at the top is also connected with a micro pump, and the micro pump is also connected with a first valve through the pipeline; through setting up the micropump, make the pipeline can take out the air in the printing opacity bottle, set up first valve simultaneously, make the pipeline can seal, keep the negative pressure in the middle of the straw, make the water purification in the printing opacity bottle can keep.
Further, a plurality of injection pipes are circumferentially arranged at the bottom of the methylene blue detection table, the injection pipes are arranged in one-to-one correspondence with the measuring cups, the injection pipes are arranged close to the suction pipes, the upper ends of the injection pipes are also connected with second valves, the second valves are arranged in the methylene blue detection table, the input ends of the second valves are connected with the cone-shaped cup through pipelines, the cone-shaped cup is fixed on the methylene blue detection table, and the cone-shaped flaring of the cone-shaped cup faces upwards; the injection pipe, the second valve and the conical cup are arranged, so that the second valve can quantitatively inject methylene blue solution into the measuring cup, and the second valve adopts a quantitative valve.
Further, a rubber pad is fixed at the bottom of the methylene blue detection table, and the rubber pad is arranged at the bottom of the methylene blue detection table in a laminating way; by arranging the rubber pad, the methylene blue detection table is prevented from colliding with the measuring cup.
Further, the light-transmitting bottle is arranged in the cylindrical shell of the methylene blue detection platform and circumferentially distributed around the axis of the screw rod, the laser transmitter is further arranged on the methylene blue detection platform corresponding to the light-transmitting bottle, the transmitting end of the laser transmitter faces towards the light-transmitting bottle, the other end of the light-transmitting bottle is provided with a light-sensitive intensity sensor corresponding to the laser transmitter, the detecting end of the light-sensitive intensity sensor faces towards the laser transmitter, and the light-transmitting bottle is arranged between the laser transmitter and the light-sensitive intensity sensor; by arranging the laser emitter and the light sensing intensity sensor, the light-transmitting bottle can be irradiated by the laser sensor, and the light sensing intensity corresponding to light transmission can be read by the light sensing intensity sensor.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the invention, the permanent magnets of a plurality of rotating magnetic fields and the measuring cups are arranged, so that the measuring cups can be simultaneously stirred, and the conical cups (the conical cups, the second valve and the injection pipe) and the methylene blue measuring devices (the first valve, the micropump, the light-transmitting bottle and the suction pipe) are arranged corresponding to the measuring cups one by one, so that the measuring device can be used for simultaneously measuring methylene blue MB value data of the measuring cups, and compared with the traditional machine-made sand single measuring device, the measuring device has higher efficiency under various machine-made sand measuring scenes;
2. the invention sets up laser emitter, light-sensitive intensity sensor and light-transmitting bottle, and sets up straw under the light-transmitting bottle, and the light-transmitting bottle is set up with micropump correspondingly (micropump adopts the two-way pump), at the same time set up methylene blue injection tube beside the straw, when the invention determines the machine-made sand MB value, need to pour into a certain amount of methylene blue many times, then measure the machine-made sand methylene blue MB value, after pouring into and fully stirring the suspension in the measuring cup each time, air in the light-transmitting bottle is pumped out through the micropump, the first valve is closed, make the light-transmitting bottle form the vacuum environment, the vacuum environment of the light-transmitting bottle absorbs the suspension in the measuring cup, the filter plate set up under the straw filters the silt, make only liquid in the suspension suck into the light-transmitting bottle (the methylene blue component is very tiny, the filter plate can not filter, the liquid carries methylene blue and enters the light-transmitting bottle), the light-transmitting bottle is irradiated through the laser emitter, the light reaches the light-sensing intensity sensor after penetrating through the light-transmitting bottle, the first valve is opened simultaneously by reversely rotating the micropump after the measurement is completed, the solution in the light-transmitting bottle is returned to the measuring cup, a certain amount of methylene blue is continuously injected for detection until the mechanical methylene blue MB threshold value is detected, and in the process, compared with the traditional means for detecting a certain amount of solution by taking out the suspension, the detection solution is automatically returned, errors which can be generated after taking out a certain suspension by the traditional solution detection are avoided, and meanwhile, the deviation which can be generated by the traditional manual measurement process for visually judging the methylene blue concentration is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an axial right angle cut of the present invention;
FIG. 3 is a schematic diagram of a head-up configuration of the present invention;
FIG. 4 is a schematic view of the tilting structure of the present invention;
FIG. 5 is a schematic diagram of a detail A in FIG. 4;
FIG. 6 is a schematic drawing of a planar cut of a slip section according to the present invention;
FIG. 7 is a schematic diagram of a detail at B in FIG. 6;
FIG. 8 is a schematic plan cut view of the base measurement cup position;
FIG. 9 is a schematic plan view of a base permanent magnet position cut;
FIG. 10 is a schematic plan view of a base gear set position cut;
FIG. 11 is a schematic view of detail C in FIG. 10;
fig. 12 is a schematic view of a motor position plan cut of the base station.
The reference numerals are represented as follows: 1-microcontroller, 2-methylene blue detecting table, 3-measuring cup, 4-base, 5-cone, 6-micropump, 7-first valve, 8-slide bar, 9-straw, 10-injection pipe, 11-first motor, 12-second motor, 13-cushion, 14-filter, 15-light-transmitting bottle, 16-laser emitter, 17-light-sensing intensity sensor, 18-second valve, 19-stirring rotor, 20-first disk, 21-second disk, 22-landing leg, 23-permanent magnet, 24-second driven gear, 25-first driving gear, 26-lead screw, 27-tubular rotating shaft, 28-spliced pole.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Examples:
as shown in fig. 1 to 12, the present embodiment includes a methylene blue detection table 2 and a base 4 disposed below the methylene blue detection table 2, the base 4 is provided with a first motor 11 and a second motor 12 which are vertically oriented, axes of the first motor 11 and the second motor 12 are the same, the second motor 12 is disposed below the first motor 11, a rotation shaft of the first motor 11 is a tubular rotation shaft 27, a rotation shaft of the second motor 12 is sleeved in the rotation shaft of the first motor 11, the first motor 11 and the second motor 12 can independently drive the corresponding rotation shaft to rotate, the rotation shaft of the second motor 12 passes through the sleeved tubular rotation shaft 27 upwards and then is connected with a screw rod 26, the screw rod 26 is coaxially connected with the rotation shaft of the second motor 12, the second motor 12 can drive the screw rod 26 to rotate, the base 4 is provided with a second wafer 21, a motor fixing frame is disposed below the second wafer 21, the first motor 11 and the second motor 12 are fixed below the second disc 21 through a motor fixing frame, three vertical supporting legs 22 are arranged at the bottom of the second disc 21 circumferentially, the three supporting legs 22 are arranged around the first motor 11, the embodiment is supported above the ground through the supporting legs 22, two vertical upward sliding rods 8 are arranged above the side of the second disc 21, the two sliding rods 8 are symmetrical relative to the axis of a screw rod 26, a tubular rotating shaft 27 of the first motor 11 and the rotating shaft of the second motor 12 upwards penetrate through the second disc 21, the methylene blue detecting table 2 is provided with a cylindrical shell, a nut is arranged at the middle axis position of the cylindrical shell, the nut is arranged on a screw rod 26 in a coupling mode, a vertical sliding tube is fixed on the side of the cylindrical shell, the sliding rods 8 are sleeved in the sliding tube, the screw rod 26 can drive the methylene blue detecting table 2 to slide vertically upward through rotation of the screw rod 26, and in the process of driving the methylene blue detecting table 2 to slide through the screw rod 26, the slide bar 8 limits the rotation of the screw rod 26 so as to drive the methylene blue detection platform 2 to slide up and down by matching with the screw rod 26.
The gear set is further arranged on the second disc 21, the gear set is provided with a first driving gear 25, the first driving gear 25 is a straight gear, the first driving gear 25 is horizontally arranged and fixed on a tubular rotating shaft 27, the first driving gear 25 and the tubular rotating shaft 27 are coaxial, the first driving gear 25 is also circumferentially meshed with a plurality of identical second driven gears 24, the second driven gears 24 are provided with four and are also straight gears, the axis of the second driven gears 24 is identical to that of the first driving gear 25, the bottom of the second driven gears 24 is provided with a rotating shaft, the rotating shaft is hinged on the second disc 21, the second driven gears 24 stably rotate the axis through the rotating shaft, the first driving gear 25 can drive the second driven gears 24 to rotate on the second disc 21, a permanent magnet 23 with a plane upwards is further fixed on the second driven gears 24 to rotate, the permanent magnet 23 can drive the rotation, the first disc 20 is further arranged on the permanent magnet 23, the first disc 20 is connected with the first disc 20 through a connecting column 28, a gap is arranged between the first disc 20 and the permanent magnet 23, and the axis of the first disc 20 is vertically provided with a through hole 26 upwards penetrating through which the lead screw is arranged at the position; a plurality of measuring cups 3 are further placed on the first wafer 20, the measuring cups 3 are arranged in a one-to-one correspondence with the permanent magnets 23, the measuring cups 3 are placed on the permanent magnets 23, the stirring rotor 19 is further placed in the measuring cups 3, the first gear rotates to drive the plurality of permanent magnets 23 to rotate, the rotation of the permanent magnets 23 can generate a rotating magnetic field to drive the stirring rotor 19 in the measuring cups 3 to rotate, and it is worth mentioning that the first wafer 20 is made of a nonmetallic material and is used for reducing loss generated by the penetration of the bottom rotating magnetic field.
The bottom of the methylene blue detection table 2 is also circumferentially provided with a plurality of vertical downward suction pipes 9, the suction pipes 9 are arranged in one-to-one correspondence with the measuring cups 3, one suction pipe 9 is arranged above each measuring cup 3, the suction pipes 9 slide up and down through the methylene blue detection table 2 to enter and exit the measuring cup 3, the bottom opening of the suction pipes 9 is provided with a filter piece 14, the filter piece 14 is used for filtering sediment, the vertical upper end of the suction pipes 9 is communicated with a light-transmitting bottle 15, the upper end of the light-transmitting bottle 15 is also connected with a pipeline, the pipeline vertically upwards passes through the top of the methylene blue detection table 2, the top pipeline is also connected with a micro pump 6, and the micro pump 6 is also connected with a first valve 7 through the pipeline; the bottom of the methylene blue detection table 2 is also circumferentially provided with a plurality of injection pipes 10, the injection pipes 10 are arranged in one-to-one correspondence with the measuring cups 3, the injection pipes 10 are arranged close to the suction pipes 9, the upper ends of the injection pipes 10 are also connected with second valves 18, the second valves 18 are arranged in the methylene blue detection table 2, the input ends of the second valves 18 are connected with the conical cups 5 through pipelines, the conical cups 5 are fixed on the methylene blue detection table 2, and conical flares of the conical cups are upward.
The methylene blue detects 2 bottoms and still is fixed with cushion 13, cushion 13 laminating sets up in the bottom of methylene blue detects 2, cushion 13 is used for preventing to measure cup 3 and the collide with of methylene blue detects 2, printing opacity bottle 15 sets up in the cylindrical casing of methylene blue detects 2, and its axis circumference distribution around lead screw 26, methylene blue detects 2 and still is provided with laser emitter 16 corresponding printing opacity bottle 15, laser emitter 16 transmitting end is towards printing opacity bottle 15, the other end of printing opacity bottle 15 is provided with light sensing intensity sensor 17 to laser emitter 16, light sensing intensity sensor 17 detects the end towards laser emitter 16, printing opacity bottle 15 sets up between laser emitter 16 and light sensing intensity sensor 17.
The embodiment also corresponds to a detection mode:
simultaneously detecting various kinds of machine-made sand, adding machine-made sand with the mass M of different kinds into corresponding measuring cups 3, simultaneously adding distilled water with the volume V into each measuring cup 3, placing each measuring cup 3 containing the machine-made sand and the distilled water onto a first wafer 20, placing the measuring cups 3 on permanent magnets 23 in a one-to-one correspondence manner, controlling a first motor 11 to rotate for five minutes by a microcontroller 1, enabling the permanent magnets 23 below the measuring cups 3 to rotate for five minutes, driving a stirring rotor 19 in the measuring cups 3 to rotate and stir the measuring cups 3 for five minutes by a rotating magnetic field, and enabling the measuring cups 3 of the embodiment to form suspension; the cone 5 corresponding to the measuring cup 3 is filled with methylene blue solution with the concentration of C and the density of rho; injecting a certain volume of methylene blue solution into the measuring cup 3 (the second valve 18 is a quantitative valve, the microcontroller 1 records the injection amount), rotating the first motor 11 for eight minutes, stirring each measuring cup 3 for eight minutes, sucking the suspension in each measuring cup 3 into the corresponding light-transmitting bottle 15 through the micropump 6, closing the first valve 7, keeping the pressure in the light-transmitting bottle 15 stable to prevent the liquid in the light-transmitting bottle 15 from flowing back into the measuring cup 3, opening the laser emitter 16 to irradiate the light-transmitting bottle 15, recording the light sensing intensity through the light sensor, when the irradiation light is not obviously attenuated (the methylene blue in the solution is absorbed by the machine-made sand mud powder, the solution sucked into the suction pipe 9 is not methylene blue), opening the first valve 7, pressing the air into the light-transmitting bottle 15 through the micropump 6 (the micropump 6 adopts a bidirectional pump), extruding the liquid back into the measuring cup 3 (the filter 14 is very small in the sediment filter hole and cannot normally flow back at normal pressure), continuously controlling the second valve 18 to inject a certain volume of the methylene blue solution (the microcontroller 1 records the injection amount), repeatedly stirring the light, repeatedly detecting the methylene blue in the light-transmitting cup 1, and repeatedly detecting the light sensing intensity until the light is further repeatedly flowing into the microcontroller 3 until the light is repeatedly detecting the light sensing intensity of each measuring cup 3, and the light is repeatedly detecting the light, and the light detecting value by the light detecting the blue by the microcontroller.
The method comprises the steps of rapidly detecting single machine-made sand, adding multiple parts of machine-made sand with the mass of M into n measuring cups 3, simultaneously adding distilled water with the same volume V into the measuring cups 3, placing the measuring cups 3 containing the machine-made sand and the distilled water onto a first wafer 20, placing the measuring cups 3 on permanent magnets 23 in a one-to-one correspondence manner, controlling a first motor 11 to rotate for five minutes by a microcontroller 1, enabling the permanent magnets 23 below the measuring cups 3 to rotate for five minutes, and driving a stirring rotor 19 in the measuring cups 3 to rotate and stir the measuring cups 3 for five minutes by a rotating magnetic field, so that the measuring cups 3 of the embodiment form suspension; the cone 5 corresponding to the measuring cup 3 is filled with methylene blue solution with the concentration of C and the density of rho; the measurement interval range of the MB value is [ MB0, MB1], [ MB1, MB2], [ MB (n-1), MBn ] according to the sensitivity of the MB value to the dosage of the additive, the MB value data threshold value of each group of tests corresponding to the regulation is MB1, MB2 and MB3.
The outer edge of the bottom plate of the cylindrical housing of the methylene blue detection stage 2 is also provided with a microcontroller 1, an operator interacts with the embodiment through the microcontroller 1, the microcontroller 1 controls the first motor 11, the second motor 12, the first valve 7 and the second valve 18, and the microcontroller 1 controls the laser transmitter 16 and collects the data of the light intensity sensor 17, meanwhile, the microcontroller 1 adopts a chip with the model STM32F100VCT6 as a control master brain, and the electronic and electrical technology related to the microcontroller 1 is used as a conventional technical means, and the real-time example is only briefly mentioned.
It should be noted that, in the laser measurement, the attenuation effect of the methylene blue on the laser is affected by multiple factors such as the size of the transparent bottle and the composition of each wavelength of the laser, but it is not within the characteristic range of the present embodiment, and the present embodiment is only briefly mentioned.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The device for light transmission detection of the methylene blue MB value comprises a methylene blue detection table (2) and a base table (4) arranged below the methylene blue detection table (2), and is characterized in that the base table (4) is provided with a first motor (11) and a second motor (12) which are vertically oriented, the second motor (12) is arranged below the first motor (11), a rotating shaft of the first motor (11) is a tubular rotating shaft (27), the rotating shaft of the second motor (12) is sleeved in the rotating shaft of the first motor (11), a screw rod (26) is connected with the rotating shaft of the second motor (12), and the screw rod (26) is arranged above the rotating shaft of the second motor (12) and is coaxial with the rotating shaft of the second motor (12);
the base station (4) is also provided with a second wafer (21), the first motor (11) and the second motor (12) are fixed below the second wafer (21), the circumference of the bottom of the second wafer (21) is also provided with a plurality of vertical supporting legs (22), the supporting legs (22) are arranged around the first motor (11), and a vertical upward sliding rod (8) is also arranged above the side of the second wafer (21); the tubular rotating shaft (27) of the first motor (11) and the rotating shaft of the second motor (12) upwards penetrate through the second circular disc (21);
the methylene blue detection table (2) is provided with a cylindrical shell, a nut is arranged at the axis position of the middle part of the methylene blue detection table, the nut is arranged on the screw rod (26) in a coupling way, a vertical slide tube is fixed on the side of the cylindrical shell, the slide rod (8) is sleeved in the slide tube, and the screw rod (26) can rotate to drive the methylene blue detection table (2) to slide upwards vertically;
a gear set is further arranged on the second disc (21), a first driving gear (25) is arranged on the gear set, the first driving gear (25) is horizontally arranged, the first driving gear (25) is connected with a tubular rotating shaft (27) and is coaxial with the tubular rotating shaft (27), the first driving gear (25) is further circumferentially meshed with a plurality of identical second driven gears (24), the axis of the second driven gears (24) is identical to that of the first driving gear (25), a rotating shaft is arranged at the bottom of the second driven gears (24), the rotating shaft is hinged on the second disc (21), the first driving gear (25) can drive the second driven gears (24) to rotate on the second disc (21), a permanent magnet (23) with an upward plane is further fixed on the second driven gears (24), the second driven gears (24) can drive the permanent magnet (23) to rotate, a first disc (20) is further arranged on the permanent magnet (23), the first disc (20) is connected with the first disc (20) through a connecting column (28), a first through hole (26) is formed between the first disc (20) and the first disc (23), and a first through hole (26) is formed in the position, and a screw rod is upwards arranged at the first axial line; a plurality of measuring cups (3) are further arranged on the first wafer (20), the measuring cups (3) are arranged in one-to-one correspondence with the permanent magnets (23), the measuring cups (3) are arranged on the permanent magnets (23), stirring rotors (19) are further arranged in the measuring cups (3), the first gear rotates to drive the plurality of permanent magnets (23) to rotate, and the permanent magnets (23) rotate to generate a rotating magnetic field to drive the stirring rotors (19) in the measuring cups (3) to rotate.
2. The light-transmitting device for detecting the MB value of the methylene blue according to claim 1, wherein a plurality of vertical downward suction pipes (9) are further circumferentially arranged at the bottom of the methylene blue detection table (2), the suction pipes (9) are arranged in a one-to-one correspondence with the measuring cups (3), the suction pipes (9) are arranged above the measuring cups (3), a filter plate (14) is arranged at the bottom opening of the suction pipe (9), and the vertical upper ends of the suction pipes (9) are communicated with the light-transmitting bottle (15).
3. A device for optically detecting the MB value of methylene blue according to claim 2, characterized in that the upper end of the optically transparent bottle (15) is further connected with a pipe which vertically passes upwards through the top of the methylene blue detection table (2), the top pipe being further connected with a micro pump (6), the micro pump (6) being further connected with a first valve (7) through the pipe.
4. A light-transmitting device for detecting the MB value of methylene blue according to claim 3, wherein a plurality of injection pipes (10) are further circumferentially arranged at the bottom of the methylene blue detection table (2), the injection pipes (10) are arranged in a one-to-one correspondence with the measuring cups (3), the injection pipes (10) are arranged close to the suction pipes (9), the upper ends of the injection pipes (10) are further connected with second valves (18), the second valves (18) are arranged in the methylene blue detection table (2), the input ends of the second valves (18) are connected with the conical cups (5) through pipelines, and the conical cups (5) are fixed on the methylene blue detection table (2) with conical flares upwards.
5. The device for optically detecting the MB value of methylene blue according to claim 4, wherein a rubber pad (13) is further fixed to the bottom of the methylene blue detecting table (2), and the rubber pad (13) is attached to the bottom of the methylene blue detecting table (2).
6. A light-transmitting device for detecting the MB value of methylene blue according to claim 5, wherein the light-transmitting bottle (15) is arranged in the cylindrical shell of the methylene blue detection table (2) and circumferentially distributed around the axis of the screw rod (26), the methylene blue detection table (2) is further provided with a laser emitter (16) corresponding to the light-transmitting bottle (15), the emitting end of the laser emitter (16) faces the light-transmitting bottle (15), the other end of the light-transmitting bottle (15) is provided with a light-sensitive intensity sensor (17) corresponding to the laser emitter (16), the detecting end of the light-sensitive intensity sensor (17) faces the laser emitter (16), and the light-transmitting bottle (15) is arranged between the laser emitter (16) and the light-sensitive intensity sensor (17).
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| CN202311619137.0A CN117309825B (en) | 2023-11-30 | 2023-11-30 | Light-transmitting device for detecting methylene blue MB value |
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