CN219328701U - Coarse aggregate mud powder content measuring device - Google Patents

Abstract

The utility model discloses a coarse aggregate mud powder content measuring device which comprises an equipment shell, a weighing piece positioned outside the equipment shell, a drying system positioned in the equipment shell, an ultrasonic cleaning system, a water supply and drainage system and a screen, wherein coarse aggregate particles are positioned on the screen, a water inlet pipe and a water outlet pipe are respectively arranged at the upper part and the lower part of the equipment shell, the water inlet pipe and the water outlet pipe are communicated with the water supply and drainage system, a second heating module is also arranged below the screen in the equipment shell, a drainage plate is obliquely arranged between the second heating module and the screen, and the drainage plate separates liquid in the equipment shell from the second heating module. The utility model has the advantages of strong cleaning capability and high detection efficiency.

Description

Coarse aggregate mud powder content measuring device

Technical Field

The utility model relates to the field of equipment for testing the mud content, the mud powder content and the mud block content of coarse aggregate in the engineering construction industry, in particular to a device for measuring the mud powder content of coarse aggregate.

Background

The quality of raw materials determines the quality of engineering entities, and under the condition of the tight construction rhythm, the quality of the entering raw materials is rapidly and accurately detected, coarse aggregates play a framework role in cement concrete and asphalt concrete, and the mud content, mud powder content and mud block content are too high, so that the strength and durability of the concrete are reduced, and the workability and engineering quality are influenced. According to GB/T14685-2022 test of pebble and macadam for construction, the weighed samples with mud content and mud powder content are soaked in water for 2 hours plus or minus 10 minutes respectively, the samples with mud content are soaked (24 plus or minus 0.5) for hours, the samples are manually washed for several times in a container filled with clear water, muddy water is slowly passed through a 1.18mm and 0.075mm cover sieve until the water in the container is visually clear, and the residual samples are taken out, dried and weighed, and the result is calculated after two parallel tests. The two tests consume long time, have large accidental errors, and the test results are greatly influenced by the judgment of testers. At present, manual elutriation is adopted to detect the mud content, mud powder content and mud block content of coarse aggregates, the existing coarse aggregate mud powder content measuring device adopts a mechanical stirring mode to separate broken stone and mud powder, the cleaning effect is limited, and part of coarse aggregate corners are easily scattered by mechanical rotation, so that the accuracy of test results is reduced; the ultrasonic cleaning mode is adopted for part of the device, so that the device can only be cleaned singly, and the drying, cleaning, water inlet and outlet and detection parameter replacement (through screen change) cannot be realized.

The CN 215812222U patent (publication date: 2022.02.11) discloses a sand mud content measuring system device, which has the following disadvantages: 1. the inlet end of the liquid discharge pipe of the sand container is provided with a filter screen, the position is easy to be blocked, mud water with corners is accumulated and cannot be discharged completely, and if the device is directly used for drying and weighing, the mud content measurement result can be influenced; 2. the weighing instrument is directly positioned at the bottom of the sand container, and long-time drying treatment can lead to the influence on the precision of the weighing instrument. 3. The filter screen is located the fluid-discharge tube lateral part, and the difficult brush that utilizes washs clean sand is difficult to guarantee filter screen and sand container close contact and be convenient for take out, and mud water all flows through the filter screen.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the coarse aggregate mud powder content measuring device with strong cleaning capability and high detection efficiency.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a coarse aggregate mud powder content measuring device, includes the equipment casing, is located equipment casing external weighing piece and is located drying system, ultrasonic cleaning system, water supply drainage system and the screen cloth of equipment casing, coarse aggregate granule is located on the screen cloth, inlet tube and outlet pipe have been respectively to equipment casing upper portion and lower part, inlet tube and outlet pipe and water supply drainage system intercommunication still are equipped with the second heating module below the screen cloth in the equipment casing, are provided with the drain bar in the slope between second heating module and screen cloth, and the drain bar separates liquid and second heating module in the equipment casing.

As a further improvement of the above technical scheme:

the drying system comprises a blowing module and a first heating module, wherein the blowing module and the first heating module are positioned above the screen.

The drain board is obliquely arranged in the equipment shell, and the lowest point is arranged close to one side of the water outlet pipe.

The ultrasonic cleaning system further comprises a controller, wherein the controller is electrically connected with the air blowing module, the first heating module, the ultrasonic cleaning system and the second heating module respectively.

The water outlet pipe is connected with the controller through a pipeline, and the water outlet pipe is connected with the water outlet pipe through a pipeline.

The device also comprises a temperature sensor positioned in the device shell, and the temperature sensor is electrically connected with the controller.

The screen is supported on the sliding rods, and the sliding rods can be taken out from the equipment shell.

The sliding rod is provided with a limiting piece at the lower part of the screen.

The upper cover of the equipment shell is provided with a flip.

Compared with the prior art, the utility model has the advantages that:

the device integrates cleaning and forced air drying functions, comprises an ultrasonic cleaning system and a drying system, wherein ultrasonic waves separate mud powder, mud blocks and coarse aggregates in water, the mud water flows out from a screen, the mud water flows out from the screen through a drain board which is obliquely arranged and is affected by gravity, the mud water flowing out from the screen can be completely discharged or not (namely, the conical space formed by the drain board which is obliquely arranged under the screen) in a shell does not affect test results, the technical problems that a filter screen is easy to block and the mud water with corners cannot be completely discharged due to accumulation in the prior art are solved, a weighing piece is positioned outside a shell of the device, the influence of the accuracy of the weighing piece in the prior art is solved, the test accuracy is high, the quality difference between a coarse aggregate sample after the drying system is processed and the coarse aggregate before drying is the coarse aggregate has the mud content, the mud powder quality and the mud block quality, the ultrasonic cleaning capability is strong, the coarse aggregate soaking time is reduced, the efficiency of the aggregate detection process is improved, the ultrasonic cleaning data obtained by adopting the ultrasonic cleaning system is more reliable and efficient than the conventional manual screening washing and stirring type separation and washing result, the manual standard test step and the actual requirement of the device are simplified.

Drawings

Fig. 1 is a schematic view of the structure of the device of the present utility model.

The reference numerals in the drawings denote: 1. a blower module; 2. a flip cover; 3. a controller; 4. a first heating module; 5. an equipment housing; 6. an ultrasonic cleaning system; 7. a water inlet pipe; 8. a drain plate; 9. a water outlet pipe; 10. a support leg; 11. a second heating module; 12. a limiting piece; 13. a screen; 14. a slide rod; 15. a temperature sensor; 16. a solenoid valve.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the specific examples. The instruments or materials used in the present utility model are commercially available unless otherwise specified.

Example 1:

as shown in fig. 1, the coarse aggregate mud powder content measuring device of the embodiment comprises a device housing 5, a weighing piece (not shown in the figure) positioned outside the device housing 5, a drying system positioned in the device housing 5, an ultrasonic cleaning system 6, a water supply and drainage system and a screen 13, coarse aggregate particles are positioned on the screen 13, a water inlet pipe 7 and a water outlet pipe 9 are respectively arranged at the upper part and the lower part of the device housing 5, the water inlet pipe 7 and the water outlet pipe 9 are communicated with the water supply and drainage system, a second heating module 11 is further arranged below the screen 13 in the device housing 5, a drainage plate 8 is obliquely arranged between the second heating module 11 and the screen 13, and the drainage plate 8 separates liquid in the device housing 5 from the second heating module 11. The device integrates the functions of cleaning and forced air drying, ultrasonic waves separate mud powder, mud blocks and coarse aggregates in water, the mud powder, the mud blocks and the coarse aggregates flow out through the screen 13, the mud water passing through the screen 13 can flow out completely under the influence of gravity through the inclined drain board 8, no matter whether the mud water in the equipment shell 5 is completely discharged (namely, a conical space formed by the lower part of the screen and the inclined board) is not influenced on test results, the technical problems that the filter screen is easy to block and the mud water with corners is accumulated and can not be completely discharged in the prior art are solved, the weighing piece is positioned outside the equipment shell 5, the influence of the accuracy of the weighing piece on the drying piece in the prior art is solved, the test accuracy is high, the quality difference between a coarse aggregate sample and the coarse aggregates before drying is the mud content of the coarse aggregates, the mud powder quality and the mud block quality, the ultrasonic cleaning capability is strong, the coarse aggregate soaking time is reduced, the efficiency of the aggregate detection process is improved, the manual test steps and instrument equipment required by specifications are simplified, and the actual requirements of engineering detection are met. In this embodiment, the drying system comprises a blower module 1 and a first heating module 4, the blower module 1, the first heating module 4 being located above the screen 13. In this embodiment, the first heating module 4 dries the screen 13 and coarse aggregate particles in the screen 13 together, and there is no need to manually transfer the wet crushed stones in the screen 13 to another container for drying, thereby solving the technical problems of dissipation and time consumption during transfer.

The ultrasonic cleaning system 6 includes a self-exciting ultrasonic exciter and a transducer.

The screen 13 can be replaced according to the test requirements to finish detection of different test indexes, and the screen 13 with the diameter of 1.18mm is not needed, so that the device has strong applicability; the ultrasonic cleaning system 6 consists of a self-excitation ultrasonic exciter and an ultrasonic transducer, and the test device can realize automatic control of steps such as cleaning, drainage, drying and the like, so that the manual error is greatly reduced and the test detection efficiency is improved.

The screen 13 is made of alloy material, is not easy to deform and has long repeated service life. The inner wall of the equipment shell 5 is a metal plate, and silicate heat insulation materials are filled in the metal plate.

In this embodiment, the drain plate 8 is obliquely disposed in the device housing 5, and the lowest point is disposed near the side of the water outlet pipe 9. The inclined drain plate 8 can accelerate mud water accumulation and discharge and greatly ensure the drying effect of the second heating module 11. The drain board 8 is a metal plate, such as a copper plate, and has good heat conduction effect.

In this embodiment, the air blower further comprises a controller 3, and the controller 3 is electrically connected with the air blowing module 1, the first heating module 4, the ultrasonic cleaning system 6, the second heating module 11 and the electromagnetic valve 16 respectively. The controller 3 is composed of a switch, a temperature display screen, a time display screen and a control program, various parameters required by the completion of the test can be set at one time, the controller 3 is positioned in a control box and comprises 1 program controller and 2 microcomputer time control timers, the cleaning time of the ultrasonic cleaning system 6, the starting and stopping of the first heating module 4 and the air blowing module 1, the water flow in and out and the heating temperature can be controlled, the heating temperature is connected with the air blowing module 1, the first heating module 4, the second heating module 11, the ultrasonic cleaning system 6, the temperature sensor 15 and the electromagnetic valve 16 through circuits by the control box, the running time and the target temperature value of each module are set in the control box, the running sequence is set by default in the control program, the degree of automation is high, and the artificial influence in the test operation process is reduced by adopting a control time length equivalent mode.

In this embodiment, the water outlet pipe 9 further comprises a solenoid valve 16, and the solenoid valve 16 is electrically connected with the controller 3 for opening or closing the water outlet pipe 9.

In this embodiment, a temperature sensor 15 is further included in the device housing 5, and the temperature sensor 15 is electrically connected to the controller 3.

In this embodiment, a plurality of slide rods 14 are provided in the apparatus housing 5 and are vertically arranged, and the screen 13 is supported on the slide rods 14. The setting of slide bar 14 makes screen cloth 13 change easily, on the one hand, takes out through slide bar 14 at any time after the clean completion and weighs convenient and fast, and the changeable other screen cloth 13 immediately carries out new mud content, mud powder content test, and on the other hand, the screen cloth 13 that dismantles washs more conveniently, has solved the filter screen and has been difficult to dismantlement and abluent technical problem among the prior art. .

In this embodiment, the slide rod 14 is provided with a limiting member 12 at the lower portion of the screen 13, and the limiting member 12 is used for limiting the position of the screen 13. Holes are formed in two sides of the screen 13, the diameters of the holes are matched with those of the slide rod 14, the slide rod 14 can slide freely on the slide rod 14, the size of the screen 13 can be changed randomly according to test requirements, and the slide rod 14 can be taken out of the equipment shell 5.

In this embodiment, the upper cover of the device housing 5 is provided with a flip cover 2. The flip cover 2 ensures heat preservation effect and drying effect, and reduces heat loss.

The flip cover 2 is provided with a low-power motor for blowing.

In this embodiment, a leg 10 for supporting the apparatus housing 5 is provided at the bottom of the apparatus housing 5.

The specific implementation method is as follows:

1. the preparation process comprises the following steps: firstly, coarse aggregates with the specified minimum mass are taken according to the maximum grain diameter (more than or equal to 9.5 mm) of coarse aggregates, the dry coarse aggregates with the mass m1 are poured into a screen 13, the screen 13 is molded by adopting a laser punching process, the prior laser punching process can process 0.005mm and more pore diameter, pore size is controlled by a beam rotator, the finish degree of pore wall is good, roundness is high, punching speed is high, position positioning is realized by an XY moving platform, pores can be formed, the processing precision and rejection rate of metal materials are considered, the screen 13 is made of stainless steel with the thickness of 2mm or aluminum magnesium alloy with the thickness of 1mm, the wear resistance, medium-low temperature stability and bearing capacity are good, the diameter of the screen 13 is 300mm, the mesh size is 0.075mm and 2.36mm, the maximum grain diameter of coarse aggregates commonly used in engineering construction is less than 63.0mm, 10 kg of crushed stone is taken and 300mm of the screen 13 is used for containing to determine the outer edge height of the screen 13, the outer edge height of the screen 13 is more than or equal to 120mm, and the full immersion of the crushed stone below the water level of the screen 13 can be ensured, and the screen 13 is not to be immersed. Then putting the screen 13 containing coarse aggregate into the device through the slide rods 14, fixing the lower end of the screen 13 by the limiting pieces 12 on the two slide rods 14, forming holes on the slide rods 14 in advance, and connecting the limiting pieces 12 on the slide rods 14 in a welding mode. In this embodiment, the limiting member 12 is a limiting buckle.

The screen 13 (the screen holes are 0.075mm and 2.36 mm) can be replaced, and the selection of the material and the forming process of the screen 13 can overcome the defects of easy deformation, easy abrasion and no high temperature resistance of the traditional metal wire woven net.

2. The cleaning process comprises the following steps: the diameters of the water inlet pipe 7 and the water outlet pipe 9 are 10mm (other sizes can be adopted, and the setting time is also changed when the water pipe is changed); taking phi 10mm as an example, the water flow rate is measured: one end of a hose with the length of 1000mm and the diameter of 10mm is directly connected with one end of a tap water valve, and one end of the hose is connected with a calibrated 5L measuring cylinder, or a longer water pipe plays roles of slow pressure and filling the hose, the water valve is opened to the maximum, timing is started when water starts to flow out from the hose, the timing is stopped when the water reaches the 5L position of the measuring cylinder, the water flow rate of the hose flowing out 5L takes 79.58s, and the water flow rate of the hose passing through phi 10mm is calculated to be 80cm/s, and the flow rate is 62.83cm3/s. The device inlet tube 7 is normally open state, outlet pipe 9 external solenoid valve 16, outlet pipe 9 is initially closed state, rivers flow through inlet tube 7 and flow into the device in 240s after this moment, the water volume just makes coarse aggregate on the screen cloth 13 and ultrasonic cleaning system 6 are all below the liquid level in the device, controller 3 control solenoid valve 16 opens, the water inflow equals the displacement in the device, controller 3 microcomputer timer automatic start ultrasonic cleaning system 6, wash coarse aggregate sample according to the settlement length, ultrasonic cleaning system 6 excitation ultrasonic wave makes liquid molecule vibration, ultrasonic wave frequency is more than 20000HZ, its molecular vibration frequency and vibration velocity are very fast, the ultrasonic wave can be fast with sample surface adhesion mud powder separation, the mud piece breaks up, and coarse aggregate texture is hard can not cause coarse aggregate particle mass loss, the device internal water is in the continuous flow change state, ultrasonic wave separated mud water mixture can in time flow through 0.075mm or 2.36mm screen cloth 13, the outlet pipe 9 that the bottom is connected by drain bar 8 bottom, drain bar 8 and device inner wall slope certain angle, drain bar 8 surface smoothness can not be detained big piece and mud water can be beaten with high-pressure to be beaten very good. After the ultrasonic continuous cleaning reaches the set time of the microcomputer time-controlled timer in the controller 3, the controller 3 controls the electromagnetic valve 16 to be closed, mud water in the device can be completely discharged, and at the moment, the ultrasonic cleaning is completed.

3. And (3) drying: the controller 3 controls the blower module 1, the first heating module 4 and the second heating module 11 to start, the heat of the drain board 8 arranged on the upper part of the second heating module 11 is conducted out, the drain board 8 is stable in property and not easy to cause chemical reaction at normal temperature, and the heat generated by the second heating module 11 can be fully transferred to the lower part of the screen 13 for drying due to good heat conductivity. The simultaneous operation of the blower module 1, the first heating module 4 and the second heating module 11 greatly improves the drying efficiency of the crushed stone.

The temperature sensor 15 feeds back temperature data to a microcontroller in the controller 3 in real time through an electric signal, and the temperature microcontroller in the controller 3 adjusts heating resistance power according to the positive and negative deviation between the feedback data and the set temperature of 105 ℃ so as to control the temperature in the device to meet the (105+/-5) DEG C requirement, and drying is carried out according to the set time. After the blast drying is finished, opening the flip cover 2, taking out the coarse aggregate and the screen 13 in time after the coarse aggregate and the screen 13 are naturally cooled, weighing the mass m2 of a cleaning sample, wherein the calculation formula of the mud powder content/the mud block content of the sample is as follows:

in the embodiment, the wet sample and the screen 13 are dried and then taken out for weighing, so that the loss of the screen 13 when the wet sample is transferred in the traditional method is reduced, the reproducibility is high, and the accuracy of the test result is high.

While the utility model has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a coarse aggregate mud powder content measuring device, includes equipment casing (5), is located equipment casing (5) outer weighing piece and be located drying system, ultrasonic cleaning system (6), water supply and drainage system and screen cloth (13) of equipment casing (5), coarse aggregate granule is located screen cloth (13), inlet tube (7) and outlet pipe (9) have been seted up respectively to equipment casing (5) upper portion and lower part, inlet tube (7) and outlet pipe (9) communicate its characterized in that with water supply and drainage system: the device is characterized in that a second heating module (11) is further arranged below the screen (13) in the device shell (5), a drain plate (8) is obliquely arranged between the second heating module (11) and the screen (13), and the drain plate (8) separates liquid in the device shell (5) from the second heating module (11).

2. The coarse aggregate mud powder content measuring device according to claim 1, wherein: the drying system comprises a blowing module (1) and a first heating module (4), wherein the blowing module (1) and the first heating module (4) are positioned above a screen (13).

3. The coarse aggregate mud powder content measuring device according to claim 1, wherein: the drain board (8) is obliquely arranged in the equipment shell (5), and the lowest point is arranged close to one side of the water outlet pipe (9).

4. The coarse aggregate mud powder content measuring device according to claim 2, wherein: the ultrasonic cleaning device further comprises a controller (3), wherein the controller (3) is electrically connected with the air blowing module (1), the first heating module (4), the ultrasonic cleaning system (6) and the second heating module (11) respectively.

5. The coarse aggregate mud powder content measuring device according to claim 4, wherein: the water outlet pipe (9) is connected with the controller (3) through a solenoid valve (16), and the solenoid valve (16) is electrically connected with the controller (3) and used for opening or closing the water outlet pipe (9).

6. The coarse aggregate mud powder content measuring device according to claim 4, wherein: also comprises a temperature sensor (15) positioned in the equipment shell (5), wherein the temperature sensor (15) is electrically connected with the controller (3).

7. A coarse aggregate mud powder content measuring device according to any one of claims 1 to 3, wherein: the screen cloth (13) is supported on the sliding rods (14), and the sliding rods (14) can be taken out from the equipment shell (5).

8. The coarse aggregate mud powder content measuring device according to claim 7, wherein: the sliding rod (14) is provided with a limiting piece (12) at the lower part of the screen (13).

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