CN215812222U - Measuring system device for mud content of sand - Google Patents
Measuring system device for mud content of sand Download PDFInfo
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- CN215812222U CN215812222U CN202121894741.0U CN202121894741U CN215812222U CN 215812222 U CN215812222 U CN 215812222U CN 202121894741 U CN202121894741 U CN 202121894741U CN 215812222 U CN215812222 U CN 215812222U
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Abstract
The utility model provides a measuring system device for the mud content of sand, which comprises a shell, wherein a sand container is arranged in the shell, heating elements are arranged on the periphery of the sand container, and a weighing device is arranged at the bottom of the sand container; the sand container is internally provided with an ultrasonic generator, the sand container is externally connected with a liquid discharge pipe, and the inlet end of the liquid discharge pipe is provided with a filter screen. Can realize the measurement of moisture content and the measurement of mud content simultaneously, wash the grit through supersonic generator, can protect the grit not destroyed on the one hand, on the other hand can be with the stubborn mud branch of adhesion in the grit shake fall off, the heating member mainly used dries the grit, will wash the moisture evaporation of adhesion on the grit surface in the link, prevents to appear the error when leading to weighing because of moisture.
Description
Technical Field
The utility model belongs to the technical field of detection equipment, and relates to a system device for measuring the mud content of sand.
Background
The mud content is the content of fine particles with the particle size of less than 75 mu m in the sand, the mineral composition and chemical components of the fine particles are different from those of the parent rock, and the adsorbability is relatively strong. The mud in the natural river sand mainly comes from clay at the river bottom, and the mud in the machine-made sand comes from clay on the surface of rock, is not cleaned, is directly crushed and is mixed into the machine-made sand. The main mineral components of the mud are kaolin, montmorillonite and illite, and the mineral components are layered silicate minerals and crystalline hydrates consisting of aluminosilicate. Montmorillonite is formed by two layers of silicon oxygen tetrahedral sheet combined with aluminium oxygen octahedron sheet in between, the aluminium oxygen octahedron and silicon oxygen tetrahedron are connected through middle oxygen atom, high valence Al in the structure3+Mg often in a reduced valence state2+，Fe2+Instead of, Si4+Is often coated with Al3 +Instead, the montmorillonite is caused to have redundant negative charges, and the layer-to-layer connection force in the structure is weaker, so that the montmorillonite has strong water absorption and expansibility. Kaolinite is composed of a silica tetrahedral sheet and an alumina octahedral sheet, but the structural sheets are formed by stacking, and the electrostatic force of the connecting sheets is stronger, so that the kaolinite can absorb water and can not expand. The illite is connected with the layered structure by the potassium ions between layers, so that the structure is relatively stable, and the illite cannot expand after absorbing water.
A certain amount of powder sand with the thickness less than 0.075mm in the sand is beneficial to increasing the compactness of the concrete and improving the strength of the concrete. It is not suitable if the silt smaller than 0.075mm is simply controlled as the harmful material such as mud and silt. However, too high a content of mud may also adversely affect workability, concrete mechanics, durability, etc., and specifically:
(1) influence of mud content on workability of concrete
The concrete contains a large amount of layered water-absorbing soil mineral components, and can absorb a large amount of mixing water, so that free water in the mixture is reduced, and the fluidity of the concrete is poor. The clay mineral particles such as kaolin, montmorillonite and the like are very easy to absorb water, so that the free water in the concrete mixture is reduced. After montmorillonite absorbs water, the volume expands, the viscosity of concrete is increased, and the fluidity of concrete is lowered. In addition, the surface of the mud particles is rough, so that the friction force among solid particles is increased when the concrete mixture flows, and the flowability is poor. Generally, when the mud content is less than 3%, the slump is reduced along with the increase of the mud content, but the influence on the workability of concrete is small; when the mud content is more than 3%, the initial slump of the concrete mixture is reduced along with the increase of the mud content, and the slump loss of the concrete is accelerated with time. In the production process, in order to meet the workability requirement of concrete, water is often added, the initial slump of the concrete is improved, and the concrete strength is reduced due to the increase of the water-cement ratio. Montmorillonite does not have hydration property, and after concrete is hardened, water in montmorillonite is evaporated or participates in hydration of other substances, so that the montmorillonite is shrunk in volume, the volume stability is poor, and a plurality of fine small cracks are generated.
(2) Influence of mud content on mechanical properties of concrete
In the process of concrete hardening, on the one hand, the existence of mud can obstruct the bonding between set cement and aggregate, and a weak area of a structure is easily formed, so that the strength of concrete is reduced. On the other hand, the fine mud particles have large specific surface area and cannot be hydrated, a large amount of free water is absorbed after the concrete is stirred, and a serious weak area is formed in an area where the mud exists along with the hydration of the concrete or the evaporation of the free water. When the mud content is less than or equal to 3 percent, the influence on the concrete strength is small, and the compressive strength of the concrete with the same strength in the 3d, 7d or 28d age period is obviously reduced along with the increase of the mud content in the sand. When the content of the mud is more than 3 percent, the strength of the concrete 28d is reduced by about 3 percent when the mud content is increased by 1 percent. The later strength of the concrete is increased along with the increase of the mud content, and the larger the mud content is, the smaller the later strength is.
(3) Influence of mud content on concrete durability
The mud content in the concrete also seriously influences the durability of the concrete, and the water loss volume of the water-swelling mud is greatly reduced due to the evaporation of the free water of the concrete in the hardening process, so that the volume stability is reduced, and the impermeability and the chloride ion permeability resistance are further reduced. The larger the mud content is, the higher the chloride ion diffusion coefficient of the concrete is, the poorer the impermeability is, the larger the shrinkage value is, and the shrinkage value is aggravated along with the improvement of the strength grade of the concrete.
Therefore, the mud content in the sand needs to be measured before the concrete is used, and the detection method in the quality standard and inspection method for the sand for common concrete JGJ52 is generally adopted. The main process is as follows: weighing 400g of dry sand which is condensed and dried to constant weight, placing the dry sand in a container which is filled with drinking water and the water surface is about 150mm higher than the sand surface for soaking for 2h, then elutriating the dry sand in water by hands to separate rock debris, silt and clay from sand grains, suspending or dissolving the rock debris, the silt and the clay in the water, slowly pouring the turbid liquid onto a cover sieve with the upper part being 1.25mm and the lower part being 0.075mm, and filtering out particles smaller than 0.075 mm. Adding water into the container, repeating the above process until the water in the container is clear, and stopping elutriation. Then, the residual particles on the 0.075mm sieve and the 1.25mm sieve after fully washing the particles smaller than 0.075mm and the cleaned sample in the container are put into a tray and dried to constant weight, and the weight is weighed after cooling, and the mud content of the sample is calculated. The arithmetic mean of the test results of the two samples is used as the measure of the mud content in the sand, and it is desirable to avoid losing sand particles during the entire test.
CN104990826A discloses a mud content measuring instrument and a mud content measuring method in dry sand, the measuring instrument includes: the separation device comprises a separation container and a separation tank, wherein the separation container is used for separating sand, stone and soil in dry sand to be detected by using intermediate density liquid; a solid-liquid separation device for separating the sand or the soil in the medium-density liquid; and the solid weight weighing device is used for weighing the sand or the soil.
CN213337635U discloses a portable building stones mud content tester, including the tester main part, the right-hand member of tester main part is provided with fixed establishment, fixed establishment includes first connecting plate, the right-hand member of tester main part is fixed with first connecting plate, the third recess has all been seted up all around to fourth connecting plate bottom, the outside of second connecting plate all is equipped with the second spring, the right-hand member of fourth connecting plate is fixed with first pushing away the handle.
CN204374022U discloses a device for rapidly measuring mud content of sand, which comprises a box body, a cleaning cylinder fixed in the box body, a filter screen cover detachably connected in the cleaning cylinder, and a waterproof motor fixedly connected in the box body and a rotating shaft extending into the cleaning cylinder; a transmission gear is fixedly connected to a rotating shaft of the waterproof motor, and the bottom of the filter screen cover is a stainless steel plate and is provided with an inner gear ring matched with the transmission gear; the upper part of the cleaning cylinder is provided with a water inlet, the lower part of the cleaning cylinder is provided with a water outlet, and the outer side wall of the cleaning cylinder is fixedly connected with a heater and a blower.
Practice proves that: during the process of measuring the mud content in the sand by a standard method, sand grains are easy to lose by manual elutriation, and finer sand grains are easy to be embedded and extruded or adhered in square-hole sieves with the diameter of 1.18mm and the diameter of 75 mu m, so that the test result is inaccurate; in the repeated elutriation of the sample, some particles smaller than 75 μm are suspended or dissolved in water, and may settle out each time the water in the container is slowly poured out, and thus may not be sufficiently elutriated, thereby affecting the accurate measurement of the sludge content. In addition, because of the defects of manual sand washing, a laboratory worker needs to perform very careful operation to consume a lot of energy, particularly in winter, cold water increases operation difficulty for the laboratory worker, and the operation of wearing gloves can be more easily scattered due to the fact that hands lose touch to sand grains. Therefore, it is necessary to design a device for testing the mud content of the sand for concrete, so as to solve the problems in the standard method test, improve the accuracy of the test result and improve the working efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a system device for measuring the mud content of sand, which can simultaneously realize the measurement of the water content and the measurement of the mud content, the sand is cleaned by an ultrasonic generator, on one hand, the sand can be protected from being damaged, on the other hand, stubborn mud adhered to the sand can be separated and fallen off by vibration, a heating element is mainly used for drying the sand, the water adhered to the surface of the sand in the cleaning link is evaporated, and the error caused by the water during weighing is prevented.
In order to achieve the purpose, the utility model adopts the following technical scheme:
in a first aspect, the utility model provides a system device for measuring the mud content of sand, which comprises a shell, wherein a sand container is arranged in the shell, a heating element is arranged on the periphery of the sand container, and a weighing device is arranged at the bottom of the sand container;
the sand container is internally provided with an ultrasonic generator, the sand container is externally connected with a liquid discharge pipe, and the inlet end of the liquid discharge pipe is provided with a filter screen.
The utility model provides a system device for measuring the mud content of sand, which can simultaneously realize the measurement of water content and the measurement of mud content, and can clean the sand through an ultrasonic generator, thereby protecting the sand from being damaged on one hand, and shaking and dropping stubborn mud adhered in the sand on the other hand.
The working flow of the measuring system device provided by the utility model is as follows:
(1) placing the sand to be measured into a sand container, weighing by a weighing device, and recording the mass as G0；
(2) Heating the sand to be measured by the heating element, weighing the sand by the weighing equipment after the moisture in the sand is completely evaporated to dryness, and recording the mass as G1According to G0And G1Calculating the water content of the sand;
(3) injecting water into the sand container through a water injection port, stopping injecting water after a certain liquid level is reached, starting an ultrasonic generator, and ultrasonically cleaning the sand;
(4) filtering the cleaned sewage by a filter screen, discharging the sewage by a liquid discharge pipe, heating sand intercepted in a sand container by a heating element, weighing the sand by a weighing device after the water in the sand is completely evaporated to dryness, and recording the mass as G2According to G1And G2And calculating the mud content of the sand.
As a preferable technical solution of the present invention, the housing is further provided with a controller.
As a preferable technical scheme of the utility model, the water injection port is externally connected with a liquid inlet pipe, water is injected into the sand container through the liquid inlet pipe, and a liquid inlet electromagnetic valve is arranged on the liquid inlet pipe.
The casing in be provided with the level gauge, level gauge electric connection the controller, controller feedback control the feed liquor solenoid valve, through the control logic realization automatic water injection between level gauge, controller and the feed liquor solenoid valve.
According to a preferable technical scheme of the utility model, the sand container is a transparent shell, two opposite side surfaces of the transparent shell are respectively provided with a light emitting element and a light receiving element, light beams emitted by the light emitting element penetrate through a mud-water mixture in the transparent shell and then are received by the light receiving element, and whether sand and mud are completely separated or not is judged according to the attenuation degree of the light beams.
In order to improve the measuring precision of the mud content, the utility model is specially designed in structure and operation in the cleaning and drying links, a light emitting part and a light receiving part are added in the cleaning link, and the mud-water mixture formed in the initial stage of injecting water into the sand is muddy, so that the light transmittance of the mud-water mixture is the worst, and the attenuation of light is the largest when the light passes through the mud-water mixture. The mud in the sand is continuously shaken off and separated under the action of the ultrasound, the mixture is stood for deposition after the ultrasound is carried out for a period of time, the mud-water mixture is gradually layered, the light transmittance is enhanced, and the light attenuation also tends to be stable. When the attenuation rate of the light beam passing through the mud-water mixture tends to be stable, the completion of the separation of the sand and the mud component can be determined, at the moment, the screen can be lifted, and the sand in the screen is transferred to a drying device.
As a preferred technical solution of the present invention, the drain pipe is provided with a drain solenoid valve, the photoreceiver is electrically connected to the controller, the controller controls the drain solenoid valve in a feedback manner, and the automatic drainage is realized through a control logic among the liquid level meter, the controller and the drain solenoid valve.
As a preferable technical scheme of the utility model, the heating element is an electric heating wire which is spirally wound on the periphery of the sand container.
As a preferable technical scheme of the utility model, the heating element comprises at least three circles of microwave generator assemblies arranged along the height direction of the sand container, and each circle of microwave generator assembly comprises at least three microwave generators arranged along the circumferential direction of the sand container.
As a preferable technical scheme of the utility model, the microwave generators contained in the two adjacent circles of microwave generator assemblies are arranged in a staggered manner.
The utility model adopts an electric heating or microwave heating mode to dry the sand subjected to preliminary desliming, and the drying aims to remove the water remained on the surface of the sand after the previous step of cleaning, ensure the drying of the sand and reduce the influence of the water on the weight of the sand. Therefore, it is to be understood that the heating means and the mounting position of the heating element according to the present invention are not particularly limited and any heating means and mounting position can be used in the present invention as long as the evaporation of water is accelerated and the heating efficiency is improved.
Optionally, in order to improve the heating efficiency, a hot air system can be additionally arranged, the hot air system comprises a motor, a fan blade and an electric heating element, hot air is blown into the sand container through the hot air system, the hot air system and the stirring piece can share one motor, and the hot air blown out by the hot air system can also prevent muddy water splashing during sand washing.
As a preferable technical scheme of the utility model, the aperture of the filter screen is 75 μm.
The mud content refers to the content of particles with the particle diameter smaller than 75 mu m in the sand, so the utility model needs to filter mud particles with the diameter less than or equal to 75 mu m, and the aperture of the filter screen is limited to 75 mu m. During the process of washing the sand by the brush, the mud with the particle size smaller than 75 mu m is directly filtered by the filter screen, so that the mud is prevented from being adhered to the sand for the second time, and the sand is quickly dried by the cooperation of the heating element and the hot air system after being washed by the brush.
As a preferred technical solution of the present invention, a temperature sensor is disposed in the housing, the temperature sensor is electrically connected to the controller, the controller controls the heating element in a feedback manner, and the temperature is automatically adjusted through a control logic among the temperature sensor, the controller and the heating element.
Illustratively, the utility model provides a using method of the sand mud content measuring device, which specifically comprises the following steps:
(1) placing the sand to be measured into a sand container, weighing by a weighing device, and recording the mass as G0The heating element heats and dries the sand to be detected, the temperature sensor detects the temperature in the sand container and transmits the temperature data to the controller, the controller adjusts the output power of the heating element according to the difference between the detection temperature and the preset temperature, the weight of the dried sand is weighed by the weighing device and is recorded as G1；
(2) Injecting water into the sand container through the liquid inlet pipe, detecting the liquid level in the shell by the liquid level meter in real time, sending a control instruction to the liquid inlet electromagnetic valve through the controller when the liquid level exceeds the preset upper limit of the liquid level, stopping injecting water when the liquid inlet electromagnetic valve is in relation, then starting the ultrasonic generator, carrying out ultrasonic cleaning on the sand, shaking off mud adhered to the surface of the sand, and standing the mud-water mixture for gradual layering after cleaning for a period of time;
(3) opening the light emitting element, wherein light beams emitted by the light emitting element penetrate through the muddy water mixture in the shell and then are received by the light receiving element, when the attenuation rate of the light beams penetrating through the muddy water mixture tends to be stable, the completion of the separation of sand and mud can be determined, at the moment, the light receiving element sends a control instruction to the liquid discharge electromagnetic valve through the controller, the liquid discharge electromagnetic valve is opened, sewage is filtered by the filter screen and then is discharged by the liquid discharge pipe (the liquid discharge pipe is always in a closed state in the detection process), mud particles with the particle size of less than 75 micrometers are screened out, and particles with the particle size of more than or equal to 75 micrometers are intercepted in the sand container;
(4) after sewage is completely discharged, the heating element is started to heat and dry sand, the temperature sensor detects the temperature in the sand container and transmits temperature data to the controller, the controller adjusts the output power of the heating element according to the difference between the detected temperature and the preset temperature, after the moisture on the surface of the sand is completely evaporated to dryness, the weighing device weighs the sand, and the recorded weight is G2；
According to G0And G1Calculating the water content w of the sand0The calculation formula is
According to G1And G2Calculating the mud content Q of the sand0The calculation formula is
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a system device for measuring the mud content of sand, which can simultaneously realize the measurement of water content and the measurement of mud content, and can clean the sand through an ultrasonic generator, thereby protecting the sand from being damaged on one hand, and shaking and dropping stubborn mud adhered in the sand on the other hand.
Drawings
FIG. 1 is a schematic structural diagram of a system for measuring the mud content of sand according to an embodiment of the present invention;
wherein, 1-shell; 2-a sand container; 3-a weighing device; 4-ultrasonic generator; 5-water injection port; 6-liquid inlet pipe; 7-liquid inlet electromagnetic valve; 8-a liquid discharge pipe; 9-liquid discharge electromagnetic valve; 10-filtering the screen; 11-a temperature sensor; 12-a liquid level meter; 13-a light receiving element; 14-a light emitting member; 15-heating element.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
In one embodiment, the utility model provides a system device for measuring the mud content of sand, which comprises a shell 1, wherein a sand container 2 is arranged in the shell 1, a heating element 15 is arranged on the periphery of the sand container 2, and a weighing device 3 is arranged at the bottom of the sand container 2, as shown in figure 1.
A water filling port 5 is formed in the top of the shell 1, water is filled into the sand container 2 through the water filling port 5, an ultrasonic generator 4 is arranged inside the sand container 2, the sand container 2 is externally connected with a liquid discharge pipe 8, and a filter screen 10 is arranged at the inlet end of the liquid discharge pipe 8.
The utility model provides a system device for measuring the mud content of sand, which can simultaneously realize the measurement of water content and the measurement of mud content, and can clean the sand through an ultrasonic generator 4, thereby protecting the sand from being damaged on one hand, and shaking and dropping the mud adhered to the sand stubborn on the other hand, wherein a heating element 15 is mainly used for drying the sand, evaporating the water attached to the surface of the sand in the cleaning link and preventing the error caused by the water during weighing.
The working flow of the measuring system device provided by the utility model is as follows:
(1) placing the sand to be measured into the sand container 2, weighing by the weighing equipment 3, and recording the mass as G0；
(2) Heating the sand to be measured by the heating element 15, weighing the sand by the weighing equipment after the moisture in the sand is completely evaporated to dryness, and recording the mass as G1According to G0And G1Calculating the water content of the sand;
(3) injecting water into the sand container 2 through a water injection port 5, stopping injecting water after a certain liquid level is reached, starting an ultrasonic generator 4, and ultrasonically cleaning sand;
(4) the cleaned sewage is filtered by a filter screen 10 and then discharged by a liquid discharge pipe 8, sand intercepted in the sand container 2 is heated by a heating element 15, the sand is weighed by a weighing device after the moisture in the sand is completely evaporated to dryness, and the mass of the sand is marked as G2According to G1And G2And calculating the mud content of the sand.
Further, a controller is also disposed in the housing 1. The external feed liquor pipe 6 of water filling port 5 through the water injection of feed liquor pipe 6 in to flourishing sand container 2, is provided with feed liquor solenoid valve 7 on the feed liquor pipe 6.
Be provided with level gauge 12 in the casing 1, level gauge 12 electric connection controller, controller feedback control feed liquor solenoid valve 7 realizes automatic water injection through the control logic between level gauge 12, controller and the feed liquor solenoid valve 7.
Further, the sand container 2 is a transparent shell, the two opposite side surfaces of the transparent shell are respectively provided with the light emitting element 14 and the light receiving element 13, light beams emitted by the light emitting element 14 penetrate through the mud-water mixture in the transparent shell and then are received by the light receiving element 13, and whether sand and mud are completely separated or not is judged according to the attenuation degree of the light beams.
In order to improve the measuring precision of the mud content, the utility model is specially designed in the cleaning and drying links in structure and operation, the light emitting element 14 and the light receiving element 13 are added in the cleaning link, and the mud-water mixture formed in the early stage of water injection into the sand is muddy, the light transmittance of the mud-water mixture is the worst, and the attenuation of light rays is the largest when the light rays pass through the mud-water mixture. The mud in the sand is continuously shaken off and separated under the action of the ultrasound, the mixture is stood for deposition after the ultrasound is carried out for a period of time, the mud-water mixture is gradually layered, the light transmittance is enhanced, and the light attenuation also tends to be stable. When the attenuation rate of the light beam passing through the mud-water mixture tends to be stable, the completion of the separation of the sand and the mud component can be determined, at the moment, the screen can be lifted, and the sand in the screen is transferred to a drying device.
Further, a liquid discharge electromagnetic valve 9 is arranged on the liquid discharge pipe 8, the light receiving part 13 is electrically connected with the controller, the controller controls the liquid discharge electromagnetic valve 9 in a feedback mode, and automatic water discharge is achieved through control logic among the liquid level meter 12, the controller and the liquid inlet electromagnetic valve 7.
Optionally, the heating member 15 is an electric heating wire spirally wound around the sand container 2.
Alternatively, the heating member 15 comprises at least three turns of microwave generator assemblies arranged in the height direction of the housing, each turn comprising at least three microwave generators arranged in the circumferential direction of the housing. The microwave generators contained in the two adjacent circles of microwave generator assemblies are arranged in a staggered mode.
The utility model adopts an electric heating or microwave heating mode to dry the sand subjected to preliminary desliming, and the drying aims to remove the water remained on the surface of the sand after the previous step of cleaning, ensure the drying of the sand and reduce the influence of the water on the weight of the sand. It is therefore to be understood that the heating means and the mounting position of the heating member 15 according to the present invention are not particularly limited and any heating means and mounting position can be used in the present invention as long as the evaporation of water is accelerated and the heating efficiency is improved.
Optionally, in order to improve the heating efficiency, a hot air system can be additionally arranged, the hot air system comprises a motor, a fan blade and an electric heating element, hot air is blown into the shell through the hot air system, the hot air system and the stirring piece can share one motor, and the hot air blown out by the hot air system can also prevent muddy water splashing during sand washing.
Further, the mesh size of the screen 10 is 75 μm. The content of the mud refers to the content of particles with a particle size of less than 75 μm in the sand, so the mud with a diameter of less than or equal to 75 μm needs to be filtered, and the aperture of the filter screen 10 is limited to 75 μm. In the process of washing the sand by the brush, the mud with the particle size less than 75 microns which is washed off is directly filtered by the filter screen 10, the mud which is washed off is prevented from being adhered to the sand for the second time, and the sand is quickly dried under the cooperation of the heating element 15 and the hot air system after being washed clean by the brush.
As a preferred technical scheme of the utility model, a temperature sensor 11 is arranged in the shell 1, the temperature sensor 11 is electrically connected with a controller, the controller controls the heating element 15 in a feedback way, and the temperature is automatically adjusted through control logics among the temperature sensor 11, the controller and the heating element 15.
In another embodiment, the utility model provides a use method of the sand mud content measuring device, which specifically comprises the following steps:
(1) placing the sand to be measured into the sand container 2, weighing by the weighing equipment 3, and recording the mass as G0The heating element 15 heats and dries the sand to be measured, the temperature sensor 11 detects the temperature in the sand container 2 and transmits the temperature data to the controller, the controller adjusts the output power of the heating element 15 according to the difference between the detection temperature and the preset temperature, and the weighing is carried outThe dried sand is weighed by the equipment 3 and is recorded as G1；
(2) Injecting water into the sand container 2 through the liquid inlet pipe 6, detecting the liquid level in the shell 1 by the liquid level meter 12 in real time, sending a control instruction to the liquid inlet electromagnetic valve 7 through the controller when the liquid level exceeds the preset upper limit of the liquid level, stopping injecting water when the liquid inlet electromagnetic valve 7 is in relation, then starting the ultrasonic generator, carrying out ultrasonic cleaning on the sand, shaking off mud adhered to the surface of the sand, and standing the mud-water mixture for layering gradually after cleaning for a period of time;
(3) the light emitting part 14 is opened, light beams emitted by the light emitting part 14 penetrate through the muddy water mixture in the shell 1 and then are received by the light receiving part 13, when the attenuation rate of the light beams penetrating through the muddy water mixture tends to be stable, the completion of the separation of sand and mud can be determined, at the moment, the light receiving part 13 sends a control instruction to the liquid discharge electromagnetic valve 9 through the controller, the liquid discharge electromagnetic valve 9 is opened, sewage is filtered by the filter screen 10 and then is discharged by the liquid discharge pipe 8 (the liquid discharge pipe 8 is always in a closed state in the detection process), mud particles with the particle size smaller than 75 micrometers are screened, and particles with the particle size larger than or equal to 75 micrometers are intercepted in the sand containing container 2;
(4) after sewage is completely discharged, the heating element 15 is started to heat and dry sand, the temperature sensor 11 detects the temperature in the shell and transmits temperature data to the controller, the controller adjusts the output power of the heating element 15 according to the difference between the detected temperature and the preset temperature, after the moisture on the surface of the sand is completely evaporated to dryness, the sand is weighed by the weighing device 3, and the recorded weight is G2；
According to G0And G1Calculating the water content w of the sand0The calculation formula is
According to G1And G2Calculating the mud content Q of the sand0The calculation formula is
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The device is characterized by comprising a shell, wherein a sand container is arranged in the shell, heating elements are arranged on the periphery of the sand container, and a weighing device is arranged at the bottom of the sand container;
the sand container is internally provided with an ultrasonic generator, the sand container is externally connected with a liquid discharge pipe, and the inlet end of the liquid discharge pipe is provided with a filter screen.
2. The assay system device of claim 1, wherein a controller is further disposed within the housing.
3. The device of claim 2, wherein the water inlet is connected to a liquid inlet pipe, and water is injected into the sand container through the liquid inlet pipe, and the liquid inlet pipe is provided with a liquid inlet electromagnetic valve;
the casing in be provided with the level gauge, level gauge electric connection the controller, controller feedback control the feed liquor solenoid valve, through the control logic realization automatic water injection between level gauge, controller and the feed liquor solenoid valve.
4. The device as claimed in claim 2, wherein the sand container is a transparent housing, and the opposite sides of the housing are respectively provided with a light emitting element and a light receiving element, and the light beam emitted from the light emitting element is received by the light receiving element after passing through the mud-water mixture in the housing.
5. The apparatus as claimed in claim 4, wherein the drain pipe is provided with a drain solenoid valve, the photoreceiver is electrically connected to the controller, and the controller controls the drain solenoid valve in a feedback manner to automatically drain water by control logic among the liquid level meter, the controller and the drain solenoid valve.
6. The measuring system device according to claim 1, wherein the heating element is an electric heating wire spirally wound around the sand container.
7. The measuring system device according to claim 1, wherein the heating member comprises at least three microwave generator units arranged in the height direction of the sand container, each of the microwave generator units comprising at least three microwave generators arranged in the circumferential direction of the sand container.
8. The assay system device according to claim 7, wherein the microwave generators contained in adjacent two-turn microwave generator assemblies are staggered.
9. The assay system device according to claim 1, wherein the mesh has a pore size of 75 μm.
10. A measuring system device according to claim 2, wherein a temperature sensor is disposed in the housing, the temperature sensor is electrically connected to the controller, the controller controls the heating element in a feedback manner, and the temperature is automatically adjusted by control logic among the temperature sensor, the controller and the heating element.
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