CN210923382U

CN210923382U - Detection equipment

Info

Publication number: CN210923382U
Application number: CN202020856852.1U
Authority: CN
Inventors: 忻煜楷; 李镓睿; 朱泓泊; 张沐华; 刘思铭; 王朝阳; 陈旭; 吴振军
Original assignee: Hunan Ningying New Material Technology Co ltd
Current assignee: Hunan Ningying New Material Technology Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-07-03
Anticipated expiration: 2030-05-21

Abstract

The embodiment of the application provides a detection device, including water content detection device, mud content detection device and fineness modulus detection device. Through water content check out test set, the relation of accepting in proper order of mud content check out test set and fineness modulus check out test set, utilize water content detection device to carry out the water content detection to initial sand earlier, the sand after the water content detection completion gets into mud content detection device and carries out the mud content and detects, the sand after the mud content detection completion gets into fineness modulus detection device again and carries out the fineness modulus and detect, thereby realize the water content to same sample, the continuous detection of the three index of mud content and fineness modulus, the testing process need not change the sample of sand, the convenience that the quality of sand detected has been improved. The method can be used for detecting three indexes of one sample, and the sample consumption is reduced. The fourth nozzle sprays media into the connecting pipe, and the fourth nozzle is formed on the side wall above the connecting pipe to prevent sand residue in the connecting pipe from influencing a detection result.

Description

Detection equipment

Technical Field

The application relates to the field of sand detection, in particular to detection equipment.

Background

With the social development, the infrastructure construction investment is continuously increased, and the real estate industry rapidly rises. The demand for concrete has increased dramatically in these fields, as has the demand for sand, which is one of the concrete aggregates. There are three important indexes for measuring the quality of sand: water content, mud content, fineness modulus. The water content and the mud content are too high, and the fineness modulus does not accord with the standard of the used sand, so that the performance of the concrete is greatly influenced. In order to ensure the quality of the sand, a series of standards are set by the nation, so that the rapid and accurate detection of the three indexes is very important.

At present, the water content is generally determined by weighing a certain mass of a sample to obtain a wet weight m0, drying the sample, weighing the dried sample to obtain a dry weight m1., and determining the difference between two weighing readings (△ m = m0-m 1) as the water content mass, and dividing the wet weight by the water content (water content = △ m/m0 × 100%).

The mud content is generally determined by drying and weighing a sample (M0), soaking in water, then screening and washing, removing mud in the sample, drying again and weighing (M1), wherein the difference between the readings of the two previous and next times of weighing (△ M = M0-M1) is the mud content, and the mud content is obtained by dividing the difference by the reading of the first time of weighing (mud content = △ M/M0 × 100%).

The fineness modulus is generally detected by screening with a screen in a laboratory by manpower, then weighing the sand grains within each diameter range, and finally obtaining the fineness modulus.

Comparison document CN104853168A discloses a grit aggregate quality intelligent monitoring system, has moisture content detection module, mud content detection module and fineness modulus detection module, and three module take a sample respectively in order to detect moisture content, mud content and fineness modulus respectively, and the great convenience of sample consumption is relatively poor.

The reference CN107727540A discloses an online detection device and an online detection method for machine-made sand, which mainly detect the granularity and the particle shape of the sand, and do not relate to the related content of mud content detection.

SUMMERY OF THE UTILITY MODEL

In view of this, it is desirable to provide a detection apparatus to reduce sample consumption and improve the convenience of quality detection of sand.

In order to achieve the above object, an embodiment of the present application provides a detection apparatus for detecting quality of initial sand, the detection apparatus includes:

a water content detection device configured to receive the initial sand to detect a water content of the initial sand;

the mud content detection device is configured to receive the sand discharged by the water content detection device so as to detect the mud content of the initial sand;

a fineness modulus detection device configured to receive the sand discharged by the mud content detection device to detect a fineness modulus of the initial sand;

the connecting pipe is respectively connected with the water content detection device and the mud content detection device so as to guide sand discharged by the water content detection device to enter the mud content detection device, and a fourth nozzle is formed on the pipe wall of the upper side of the connecting pipe; and

a second motive member configured to deliver blast media to and from the fourth nozzle orifice into a connecting tube.

In one embodiment, the water content detecting device includes:

a first hopper configured to receive the initial sand;

a first heating member configured to heat the initial sand to remove water from the initial sand;

a first valve disposed at an outlet of the first hopper to selectively open or close the outlet of the first hopper; and

a first weighing component configured to weigh at least the first hopper.

In one embodiment, the water content detecting device further comprises a first sand removing component with first nozzles, and at least two first nozzles arranged at intervals are annularly arranged at the inlet of the first hopper.

In one embodiment, the mud content detection apparatus includes:

the cleaning and filtering assembly is configured to receive the sand discharged by the water content detection device and clean and filter the sand discharged by the water content detection device to remove mud in the sand;

the receiving assembly is positioned below the cleaning and filtering assembly to receive the sand subjected to the desilting by the cleaning and filtering assembly;

the second heating component is configured to heat the sand on the bearing component so as to remove water in the sand on the bearing component; and

a second weighing component configured to weigh at least the receiving assembly.

In one embodiment, the cleaning filter assembly comprises:

the cleaning device comprises a cleaning container, a first water outlet and a second water outlet, wherein a first water outlet is formed in the side wall of the cleaning container;

a second sand removing member having a second nozzle provided at a top of the cleaning vessel;

a second valve provided at the first drain port to selectively open or close the first drain port;

a turbidity meter in communication with the first drain to detect turbidity of the water discharged from the first drain;

the cleaning roller is positioned in the cleaning container and is rotationally connected with the cleaning container;

the first power component is in driving connection with the cleaning roller; and

first filter screen is located in the washing container and encircle it separates into sand chamber and mud chamber with the inner chamber with washing container around the washing cylinder, the sand chamber is configured to accept water content detection device exhaust sand, the aperture of first filter screen is configured to allow mud to pass through and prevents that the sand in the sand chamber from passing through, the second spout with sand chamber intercommunication, it is configured to accept the subassembly sand after the desilt in the sand chamber.

In an embodiment, wash filter component still includes the second filter screen, the second filter screen is located in the washing container and encircle around the washing cylinder, the second filter screen is located first filter screen with wash between the cylinder in order to separate the sand chamber for first sand chamber and second sand chamber, the second sand chamber is located first sand chamber with between the mud chamber, first sand chamber is configured to accept the discharged sand of water content detection device, the aperture configuration of second filter screen is greater than the aperture of first filter screen and is less than 3 mm.

In one embodiment, the cleaning filter assembly further comprises:

the supporting ring plate is positioned at the bottom of the sand cavity and is rotationally connected with the cleaning roller;

the connecting ring plate is positioned at the bottom of the mud cavity and is connected with the cleaning container so as to seal the bottom of the mud cavity;

a switch plate located between the support ring plate and the connection ring plate;

the push rod component is connected with the switch plate; and

the first telescopic component is connected with the push rod component to push the switch plate to open or close the sand cavity.

In one embodiment, one side of the support ring plate facing away from the cleaning drum in the radial direction and one side of the switch plate facing away from the cleaning drum in the radial direction are both inclined towards the receiving assembly, and the first filter screen abuts against the edge of the connecting ring plate facing towards one side of the cleaning drum in the radial direction.

In one embodiment, the cleaning filter assembly further comprises:

the drainage chamber is positioned below the cleaning container, the drainage chamber is configured to receive sand subjected to desilting in the sand cavity, the receiving assembly is configured to receive the sand discharged by the drainage chamber, a second water outlet is formed in the side wall of the drainage chamber, a first sand outlet is formed in the bottom end of the drainage chamber, and the receiving assembly is positioned below the drainage chamber;

a third screen disposed at the second drain opening, the third screen having apertures configured to allow mud to pass therethrough and to prevent sand in the drain chamber from passing therethrough;

a third valve provided at the first sand discharge port to selectively open or close the first sand discharge port; and

and a third sand cleaning member having a third nozzle provided at the top of the drain chamber.

In an embodiment, the mud content detecting device further includes a second telescopic member located below the receiving assembly, and the second telescopic member is configured to lift one end of the receiving assembly so as to discharge sand on the receiving assembly from the other end of the receiving assembly to the fineness modulus detecting device.

In one embodiment, the mud content detection device further comprises a second housing, the receiving assembly, the second heating component and the second weighing component are all arranged in the second housing, an air suction opening is formed in the second housing, and the air suction opening is located above the receiving assembly to discharge water evaporated from sand on the receiving assembly.

In one embodiment, the fineness modulus detecting device includes:

the screening assembly is configured to receive the sand discharged by the mud content detection device, the screening assembly comprises a plurality of stages of screeners which are sequentially arranged along the vertical direction, and the aperture of the screen of the screener positioned above is larger than that of the screen of the screener positioned below;

the vibration assembly is arranged below the screening assembly and is configured to drive the screening assembly to vibrate so as to screen the sand discharged by the mud content detection device; and

a third weighing part provided to each stage of the sifter to weigh at least the sifter.

In one embodiment, the detection apparatus further comprises a feeding device located above the water content detection device, the feeding device comprising:

a cartridge positioned above the water content detection device; and

the refining member is positioned in the charging barrel and connected with the charging barrel, an annular discharging port is formed between the refining member and the charging barrel, a refining part is formed on the refining member, and the radial size of the refining part is gradually reduced along the direction of the refining member pointing to the feeding end of the charging barrel.

In an embodiment, the detection apparatus further comprises a console, and the console is electrically connected to the water content detection device, the mud content detection device, and the fineness modulus detection device, respectively.

In one embodiment, the detection device further comprises a carriage body and a roller, the console, the water content detection device, the mud content detection device and the fineness modulus detection device are all arranged in the carriage body, and the roller is arranged at the bottom of the carriage body.

The check out test set of this application embodiment, through water content check out test set, the relation of accepting in proper order of mud content check out test set and fineness modulus check out test set, utilize water content detection device to carry out the water content detection to initial sand earlier, the sand after the water content detection completion gets into mud content detection device and carries out the mud content and detects, the sand after the mud content detection completion gets into fineness modulus detection device again and carries out the fineness modulus and detect, thereby realize the water content to same part of sample, the continuous detection of the three index of mud content and fineness modulus, the sample of sand need not be changed in the testing process, the convenience that the quality of sand detected has been improved.

The detection equipment of this application embodiment can realize the detection of water content, mud content and fineness modulus through a sample, has reduced the sample size that the quality of sand detects the required consumption.

The check out test set of this application embodiment utilizes the fourth spout to the intraductal jetting medium of connecting to carry the sand that water content detection device discharged to get into in the connecting pipe to mud content detection device, avoid having sand residue to influence the testing result in the connecting pipe. The fourth spout is formed on the top lateral wall of connecting pipe, and the sand in the connecting pipe can not get into the fourth spout because of the influence of action of gravity to it has sand to remain to influence the testing result to avoid in the connecting pipe.

Drawings

Fig. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a feeding device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a water content detecting device according to an embodiment of the present application;

FIG. 4 is a view taken along line A of FIG. 1;

FIG. 5 is a cross-sectional view at location B-B of FIG. 4;

fig. 6 is a schematic structural diagram of a mud content detection device according to an embodiment of the present application;

FIG. 7 is a view showing an opened state of the switching plate in the structure shown in FIG. 6;

FIG. 8 illustrates the sand and mud chambers of the construction of FIG. 6 with the first telescoping member and the push rod assembly omitted;

FIG. 9 is an enlarged view of FIG. 6 at position C;

fig. 10 is a schematic structural diagram of a fineness modulus detection apparatus according to an embodiment of the present application.

Description of reference numerals: a water content detection device 1; a first bracket 11; a first housing 12; a first weighing member 13; a first insulating layer 14; a first hopper 15; a first heating member 16; a blowing member 171; a mud content detection device 2; a second bracket 21; a second housing 22; an air suction opening 221; a second sand discharge port 222; cleaning the filter assembly 23; a first mounting frame 231; cleaning the container 232; cleaning the top wall 2321 of the vessel; a first drain 2322; cleaning the drum 233; a first power component 234; a first screen 235; a second screen 236; a support ring plate 237; a connecting ring plate 238; a switch plate 239; a push rod assembly 2301; a first telescoping member 2302; a first jet plate 23031; a turbidimeter 2304; a sand chamber 2305; a mud chamber 2306; a first sand chamber 23051; second sand chamber 23052; a second jet plate 23071; a third jet 23072; a drain chamber 24; a second drain port 241; a first sand discharge port 242; a receiving assembly 25; second heating member 26; a second insulating layer 27; a second weighing member 28; a second telescopic member 29; a fineness modulus detecting device 3; a third housing 31; a discharge opening 311; a second hopper 32; a screening assembly 33; a screener 331; a discharge port 3311; a support assembly 34; a collector 35; a transfer assembly 36; a vibration assembly 37; a first support column 38; a third telescopic member 39; a feeding device 4; a barrel 41; a cylindrical wall 411; a mounting block 412; a refining member 42; a refining section 421; an annular discharge port 43; a compartment body 5; a main control console 6; a connecting pipe 7; a fourth nozzle 71; and a roller 8.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the present application, "upper", "lower", "top", "bottom", orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, it being understood that such orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

In the description of the present application, "initial sand" refers to sand to be detected for which any one of the water content, the mud content, and the fineness modulus has not been detected.

As part of the inventive concept of the present application, before describing the embodiments of the present application, the reasons for the poor detection convenience of the water content, the mud content and the fineness modulus of the sand in the prior art need to be analyzed, and the technical solution of the embodiments of the present application is obtained through reasonable analysis.

In the prior art, the quality of the sand is usually detected by sampling each detection index respectively, for example, when the water content is detected, a certain sample of the sand is taken and put into a corresponding detection device for detecting the water content of the sand, and after the water content is detected, the sand is not well utilized. When the mud content detection is needed, a sand sample similar to the sand sample used for water content detection is additionally taken for sand mud content detection; similarly, when the fineness modulus detection is required, a sample of sand similar to that used for the moisture content detection is additionally taken for the fineness modulus detection of sand. The detection of the three indexes of water content, mud content and fineness modulus of the sand is separately and independently carried out, the detection of the three indexes has no sequence, and the detection of each index of the sand is respectively sampled. And the detection of the three indexes can not realize continuous detection according to any detection sequence, for example, after the mud content is detected, water in the sand is dried, and the sand after the mud content is detected can not be subjected to water content detection. Because the quality detection of sand needs to be divided into a plurality of times to take samples, the convenience of the quality detection of sand is poor, if one device can continuously detect the three indexes of the water content, the mud content and the fineness modulus of the same sample of sand without changing the sample, the convenience of the quality detection of sand can be improved. The detection of three indexes of analysis discovers that sand is in the drying state after the water content is detected and is just suitable for the mud content detection of sand, and the mud content of sand is detected and is accomplished, and sand is by the fineness modulus detection that the fineness modulus that is just suitable for sand is washd clean and is in the drying state. Therefore, the water content detection, the mud content detection and the fineness modulus detection can be performed on the same sample of the sand.

In view of this, the embodiment of the present application provides a detection apparatus for quality detection of primary sand. Referring to fig. 1, the detecting apparatus includes a water content detecting device 1, a mud content detecting device 2, a fineness modulus detecting device 3, a connecting pipe 7 and a second power component. The water content detection device 1 is configured to receive the primary sand to detect the water content of the primary sand. The mud content detecting device 2 is configured to receive the sand discharged from the water content detecting device 1 to detect the mud content of the initial sand. The fineness modulus detecting means 3 is configured to receive the sand discharged from the mud content detecting means 2 to detect the fineness modulus of the initial sand. The connecting pipe 7 is respectively connected with the water content detecting device 1 and the mud content detecting device 2 so as to guide sand discharged from the water content detecting device 1 into the mud content detecting device 2, and a fourth nozzle 71 is formed on the pipe wall of the upper side of the connecting pipe 7. The second motive member is configured to deliver the blowing medium to and from the fourth nozzle orifice into the connecting tube.

The check out test set of this application embodiment passes through water content check out test set, the relation of accepting in proper order of mud content check out test set and fineness modulus check out test set, utilize water content detection device 1 to carry out the water content detection to initial sand earlier, the sand after the water content detection completion gets into mud content detection device 2 and carries out the mud content and detect, the sand after the mud content detection completion reentrants fineness modulus detection device 3 and carries out the fineness modulus and detect, thereby realize the water content to same part of sample, the continuous detection of the three index of mud content and fineness modulus, the testing process need not change the sample, the convenience that the quality of sand detected has been improved.

The detection of water content, mud content and fineness modulus can be realized by one sample, and the sample amount consumed for the quality detection of the sand is reduced.

The check out test set of this application embodiment utilizes fourth spout 71 to the interior jetting medium of connecting pipe 7 to carry the sand that water content detection device 1 discharged and got into in the connecting pipe 7 to mud content detection device 2, have sand to remain in avoiding the connecting pipe 7 and influence the testing result. The fourth nozzle 71 is formed on the upper side wall of the connecting pipe 7, and sand in the connecting pipe 7 cannot enter the fourth nozzle 71 due to the influence of gravity, so that the influence of sand residues in the connecting pipe 7 on the detection result is avoided.

In one embodiment, the fourth nozzles 71 are uniformly arranged along the extension direction of the connecting pipe 7.

In one embodiment, referring to fig. 1, the water content detecting device 1 is located above the mud content detecting device 2, and the mud content detecting device 2 is located above the fineness modulus detecting device 3. The sand for detection sequentially passes through the water content detection device 1, the mud content detection device 2 and the fineness modulus detection device 3 through self gravity so as to detect the water content, the mud content and the fineness modulus of the sand.

In an embodiment, the water content detection device 1 may be located below the mud content detection device 2, and sand discharged from the water content detection device 1 may be conveyed to the mud content detection device 2 by using a conveying device. The mud content detection device 2 may be located below the fineness modulus detection device 3, and sand discharged from the mud content detection device 2 may be conveyed to the fineness modulus detection device 3 by a conveying device to detect the fineness modulus of the sand.

In an embodiment, referring to fig. 1, the detection apparatus further includes a box 5 and a roller 8, the water content detection device 1, the mud content detection device 2, and the fineness modulus detection device 3 are all disposed in the box 5, and the roller 8 is disposed at the bottom of the box 5. So, check out test set can move the position that needs comparatively conveniently and carry out quality detection to the sand on scene.

In an embodiment, referring to fig. 1, the detecting apparatus further includes a console 6, and the console 6 is electrically connected to the water content detecting device 1, the mud content detecting device 2, and the fineness modulus detecting device 3, respectively. Therefore, the control of the water content detection device 1, the mud content detection device 2 and the fineness modulus detection device 3 in the detection process can be realized through the master control console 6. Therefore, the automatic detection of the detection equipment is controlled through the master control console 6, the interference of human factors is eliminated, and the detection precision is improved.

In one embodiment, referring to fig. 1, the console 6 can be disposed in the car 5.

In one embodiment, referring to FIG. 3, the moisture content detecting apparatus 1 includes a first hopper 15, a first heating member 16, a first valve, and a first weighing member 13, the first hopper 15 is configured to receive the primary sand, the first heating member 16 is configured to heat the primary sand to remove water from the primary sand, the first valve is disposed at an outlet of the first hopper 15 to selectively open or close the outlet of the first hopper 15, the first weighing member 13 is configured to weigh at least the first hopper 15, the first valve is configured to close the outlet of the first hopper 15, the first weighing member 13 obtains a first unloaded mass m0, the first unloaded mass m0 includes the mass of the first hopper 15, the primary sand is placed into the first hopper 15, the first weighing member 13 records a first loaded mass m1. to activate the first weighing member 16 to dry moisture in the primary sand after the primary sand is fed into the first hopper 15, and records a moisture content of the first dried mass m 382-592 m as a data change of the first weighing member 13 indicates that moisture content of the primary sand is no longer removed, the primary sand is about 3892 m 3-5932%.

In one embodiment, the first weighing unit 13 may be an electronic scale or a mechanical scale.

In one embodiment, referring to fig. 3, the water content detecting device 1 further includes a first insulating layer 14. The first hopper 15 extends from above the first insulating layer 14 to below the first insulating layer 14, the first heating member 16 is located above the first insulating layer 14, and the first weighing member 13 is located below the first insulating layer 14. So, be favorable to thermal-insulated to first weighing component 13, avoid first weighing component 13 to damage owing to receiving great heat radiation, especially to the electronic scale, overheated environment easily causes the damage of electronic scale.

In an embodiment, referring to fig. 3, the first heating member 16 may be a heating resistance wire, and the first heating member 16 is wound outside the first hopper 15. The drying temperature is controlled at 105 +/-5 ℃.

In one embodiment, referring to fig. 3, the water content detecting device 1 further includes a first housing 12. The first insulating layer 14 and the hopper are located within the first housing 12. In this manner, the first hopper 15 is supported by the first housing 12.

In one embodiment, the bottom of the first housing 12 may be connected to the bottom of the carriage 5, and the first hopper 15 may be supported to a desired height by the first housing 12.

In one embodiment, referring to fig. 1 and 3, the moisture content detecting device 1 further includes a first bracket 11, a bottom of the first bracket 11 is connected to a bottom of the compartment 5, and a top of the first bracket 11 is connected to a bottom of the first housing 12. In this manner, the first casing 12 and the first hopper 15 are supported to a desired height by the first bracket 11.

In one embodiment, the first weighing unit 13 is disposed on the top end of the first support 11, the first thermal insulation layer 14 is connected to the first housing 12, the first hopper 15 is connected to the first thermal insulation layer 14, and the first weighing unit 13 carries the first housing 12 or the first thermal insulation layer 14. When the first weighing member 13 carries the first casing 12, the weight of the first hopper 15 and the first insulating layer 14 acts on the first weighing member 13 through the first casing 12; when the first weighing member 13 carries the first insulating layer 14, the weight of the first hopper 15 and the first casing 12 acts on the first weighing member 13 through the first insulating layer 14. Thus, the first weighing member 13 is called as having an empty mass m0 which is the sum of the masses of the first housing 12, the first insulating layer 14, the first hopper 15, the first heating member 16, and other components attached to the first hopper 15.

In one embodiment, the first weighing member 13 is located within the first housing 12 and is connected to the first housing 12, the first thermally insulating layer 14 is connected to the first hopper 15, the first weighing member 13 carries the first thermally insulating layer 14, the first hopper 15 is out of contact with the first housing 12, and the weight of the first hopper 15 acts on the first weighing member 13 through the first thermally insulating layer 14. Thus, the first weighing member 13 is called as having an empty mass m0 which is the sum of the masses of the first insulating layer 14, the first hopper 15, the first heating member 16, and other components attached to the first hopper 15.

In one embodiment, the first insulating layer 14 is made of glass fiber.

In one embodiment, the first housing 12 is made of a thermal insulation material, so that heat dissipation is reduced, and temperature control is more accurate.

In one embodiment, referring to fig. 3, the water content detecting device 1 further includes a first sand removing member having first nozzles, and at least two first nozzles spaced apart from each other are annularly disposed at an inlet of the first hopper 15. So, after the moisture content of initial sand detected, utilize first sand removal part to blow the sand removal medium in to first hopper 15 through first spout in order to spout the sand in first hopper 15 from first hopper 15 and get into mud content detection device 2 to avoid the sand in first hopper 15 to adhere at the inner wall of first hopper 15.

In one embodiment, the blowing medium is water, and air may be used.

In one embodiment, the first sand removal component includes a blowing member 171 and a third power component. The first nozzle is formed on the first blowing member 171, and the third power unit provides power for the blowing medium to be ejected from the first nozzle of the blowing member 171.

In one embodiment, the third power component may be an air pump or a water pump, depending on the blowing medium.

In one embodiment, referring to fig. 6, the mud content detecting apparatus 2 includes a cleaning filter assembly 23, a receiving assembly 25, a second heating member 26, and a second weighing member 28, the cleaning filter assembly 23 is configured to receive sand discharged from the water content detecting apparatus 1 and clean and filter the sand discharged from the water content detecting apparatus 1 to remove mud from the sand, the receiving assembly 25 is located below the cleaning filter assembly 23 to receive the sand removed by the cleaning filter assembly 23, the second heating member 26 is configured to heat the sand on the receiving assembly 25 to remove water from the sand on the receiving assembly 25, the second weighing member 28 is configured to weigh at least the receiving assembly 25, the sand discharged from the water content detecting apparatus 1 is cleaned and filtered by the cleaning filter assembly 23 to remove mud from the sand, the second weighing member 28 obtains a second empty mass m 34 before the cleaning filter assembly 23 is not discharged, the second weighing member m3 includes a mass of the receiving assembly 25, and when the sand removed from the cleaning filter assembly 23 falls into the receiving assembly 25, the second weighing member 28 obtains a second empty mass m3 including a dry mass change of the sand recorded by the second weighing member 94-3875-dry sand on the receiving assembly, the sand, the second weighing member 23, and the sand falls into a dry weight change recorded by the second weighing member 94-3875-3.

In one embodiment, second heating element 26 may be a heating resistor.

In one embodiment, the second weighing component 28 may be an electronic scale or a mechanical scale.

In one embodiment, referring to fig. 6, the cleaning filter assembly 23 includes a cleaning container 232, a second sand cleaning member having a second nozzle, a second valve, a turbidity meter 2304, a cleaning roller 233, a first power member 234, and a first strainer 235. A first drain port 2322 is formed on a sidewall of the cleaning container 232. The second nozzle is disposed at the top of the cleaning vessel 232. A second valve is provided at the first drain port 2322 to selectively open or close the first drain port 2322. The turbidity meter 2304 communicates with the first drain port 2322 to detect turbidity of the water discharged from the first drain port 2322. Cleaning roller 233 is located within cleaning vessel 232 and is rotatably connected to cleaning vessel 232. The first power unit 234 is drivingly connected to the wash roller 233. The first screen 235 is located in the cleaning container 232 and surrounds the cleaning roller 233 to divide the inner cavity of the cleaning container 232 into a sand chamber 2305 and a mud chamber 2306, the sand chamber 2305 is configured to receive sand discharged from the water content detecting device 1, the aperture of the first screen 235 is configured to allow mud to pass and prevent sand in the sand chamber 2305 from passing, the second nozzle is communicated with the sand chamber 2305, and the receiving assembly 25 is configured to receive sand after the mud is removed from the sand chamber 2305. In this configuration, the second valve closes the first drain port 2322 during the process of the sand discharged from the water content detection device 1 entering the sand chamber 2305 of the cleaning container 232. After the sand chamber 2305 is filled, the sand in the sand chamber 2305 is allowed to stand and soak for a period of time, which may be 2 hours, for example. After soaking, the second valve is opened, the first power part 234 drives the cleaning roller 233 to rotate, and the second nozzle of the second sand cleaning part sprays water to fill the inner cavity of the cleaning container 232. Then, the second valve is opened, the water continuously ejected from the second nozzle cleans the sand in the sand chamber 2305 and is discharged from the first water discharge port 2322, and the turbidity meter 2304 detects the turbidity of the water discharged from the first water discharge port 2322. When the turbidity detected by the turbidity meter 2304 reaches the preset turbidity requirement, that is, when the water is sufficiently clear, the second valve closes the first water discharge port 2322, the cleaning roller 233 stops rotating, and the sand in the sand chamber 2305 falls into the receiving assembly 25 for drying and weighing to obtain the initial sand content. Illustratively, the pore size of the first screen 235 may be 80 μm.

In one embodiment, the top of the first screen 235 may be connected to the top wall 2321 of the cleaning vessel.

In one embodiment, the cleaning roller 233 includes a barrel and a brush provided on the barrel.

In one embodiment, during the time that sand in the sand chamber 2305 falls into the receiving assembly 25, the second nozzle may spray water to clean sand that may be stuck to the brushes of the cleaning drum 233 and to the first and

second screens

235 and 236, thereby reducing experimental error.

In one embodiment, the first power component 234 may be an electric motor.

In one embodiment, referring to fig. 6 and 8, the second sand cleaning component includes a first nozzle plate 23031 and a fourth power component, the second nozzle is formed on the first nozzle plate 23031, and the fourth power component provides power for the blowing medium to be ejected from the second nozzle.

In one embodiment, the blasting medium is typically water and the fourth power component may be a water pump.

In one embodiment, the first spray plate 23031 may be integrally formed with the top wall 2321 of the cleaning vessel. The first spray plate 23031 and the top wall 2321 of the cleaning container may also be connected in a separated manner, such as welding.

In one embodiment, referring to fig. 6 and 8, the cleaning filter assembly 23 further includes a second screen 236, the second screen 236 is disposed in the cleaning container 232 and surrounds the cleaning roller 233, the second screen 236 is disposed between the first screen 235 and the cleaning roller 233 to divide the sand chamber 2305 into a first sand chamber 23051 and a second sand chamber 23052, the second sand chamber 23052 is disposed between the first sand chamber 23051 and the mud chamber 2306, the first sand chamber 23051 is configured to receive sand discharged from the water content detecting device 1, and the aperture of the second screen 236 is configured to be larger than the aperture of the first screen 235 and smaller than 3 mm. So, form filtration many times, be favorable to mud and sand separation. Illustratively, the pore size of the second screen 236 may be 1.25 mm.

In one embodiment, the top of the second screen 236 may be connected to the top wall 2321 of the cleaning vessel.

In one embodiment, referring to fig. 6 and 7, the washing filter assembly 23 further includes a support ring plate 237, a connection ring plate 238, a switch plate 239, a push rod assembly 2301, and a first telescopic member 2302. A support ring plate 237 is located at the bottom of the sand chamber 2305 and is rotatably connected to the wash drum 233. The connecting ring plate 238 is located at the bottom of the mud chamber 2306 and is connected with the wash vessel 232 to seal the bottom of the mud chamber 2306. The switch plate 239 is located between the support ring plate 237 and the connection ring plate 238. The push rod assembly 2301 is connected to the switch plate 239. The first telescopic member 2302 is coupled to the push rod assembly 2301 to push the switch plate 239 to open or close the sand chamber 2305. In this configuration, the switch plate 239 closes the sand chamber 2305 during cleaning and filtering of sand in the sand chamber 2305 by the cleaning and filtering assembly 23. When the turbidity measured by the turbidity meter 2304 reaches the desired level, i.e., the sand in the sand chamber 2305 is washed clean, the first telescoping member 2302 is used to drive the push rod assembly 2301 to open the switch plate 239 to drain the sand from the sand chamber 2305.

In one embodiment, referring to fig. 6 and 7, the side of the supporting ring plate 237 facing away from the washing drum 233 and the side of the switch plate 239 facing away from the washing drum 233 are both inclined toward the receiving member 25, and the first filter screen 235 abuts against the edge of the connecting ring plate 238 facing toward the washing drum 233. With the structure, when the sand cavity 2305 is opened by the switch plate 239, sand in the sand cavity 2305 is discharged along the inclined planes of the switch plate 239 and the support ring plate 237 under the action of gravity, and sand in the sand cavity 2305 can be better prevented from being retained on the switch plate 239 or the support ring plate 237 after falling onto the switch plate 239 or the support ring plate 237.

In one embodiment, referring to fig. 6 and 7, the side of the connecting ring plate 238 facing away from the cleaning roller 233 in the radial direction may be inclined toward the receiving member 25.

In one embodiment, referring to fig. 6, 7 and 8, the cleaning filter assembly 23 further includes a drain chamber 24, a third screen, a third valve, and a third sand cleaning member. The drain chamber 24 is located below the cleaning container 232, the drain chamber 24 is configured to receive sand removed from the sand chamber 2305, the receiving member 25 is configured to receive sand discharged from the drain chamber 24, a second drain opening 241 is formed in a side wall of the drain chamber 24, a first sand discharge opening 242 is formed in a bottom end of the drain chamber 24, and the receiving member 25 is located below the drain chamber 24. A third screen is provided at the second drain opening 241, and the aperture of the third screen is configured to allow the mud to pass and prevent the sand in the drain chamber 24 from passing. The third valve is provided at the first sand discharge port 242 to selectively open or close the first sand discharge port 242. The third nozzle 23072 is disposed at the top of the drain chamber 24. With such a structure, when the turbidity measured by the turbidity meter 2304 reaches the expected requirement, that is, the sand in the sand chamber 2305 is cleaned, the third valve can be closed to close the first sand outlet 242, the sand discharged from the sand chamber 2305 enters the water discharge chamber 24 for water discharge, the water in the water discharge chamber 24 is discharged through the second water outlet 241 on the side wall of the water discharge chamber 24, and the third filter screen at the second water outlet 241 prevents the sand in the water discharge chamber 24 from flowing in and out of the second water outlet 241, thereby reducing experimental errors. After the sand discharged from the sand chamber 2305 is drained through the drain chamber 24, the third valve opens the first sand discharge port 242, and the sand in the drain chamber 24 is discharged to the receiving unit 25 through the first sand discharge port 242. The sand in the sand chamber 2305 is drained through the drainage chamber 24 and then discharged to the receiving assembly 25, which is beneficial for the second heating element 26 to dry the sand on the receiving assembly 25. During the process of discharging sand through the first sand discharge port 242 opened by the third valve, the third sand cleaning member may be activated to blow the drain chamber 24 to prevent sand in the drain chamber 24 from adhering to the side wall of the drain chamber 24.

In one embodiment, the third screen may have a pore size of 80 μm.

In one embodiment, the third sand cleaning component comprises a second jet plate 23071 and a fifth power component, the third jet 23072 is formed on the second jet plate 23071, and the fifth power component provides power for the ejection of the blasting media from the third jet 23072.

In one embodiment, the second jet plate 23071 is positioned below the connecting ring plate 238.

In one embodiment, the second nozzle plate 23071 is integrally formed with the connecting ring plate 238, as shown in fig. 9.

In one embodiment, the second nozzle plate 23071 and the connecting ring plate 238 may be connected in a split manner, such as by welding.

In one embodiment, the blasting medium ejected from the third nozzle 23072 is typically a gas, which both cleans the sidewalls of the drain chamber 24 as much as possible and prevents excess water from draining to the receiving assembly 25.

In one embodiment, the top of the drain chamber 24 may be connected to the second jet plate 23071.

In one embodiment, the drain chamber 24 may be connected to the cleaning container 232.

In one embodiment, the receiving member 25 may be a receiving plate that receives the sand discharged from the drainage chamber 24.

In one embodiment, the drain chamber 24 may not be provided. The mud content detection device 2 further comprises a fourth filter screen. The receiving member 25 is formed with a receiving groove into which sand in the sand chamber 2305 falls and a third drain port communicating with the receiving groove, and a fourth filter screen is provided at the third drain port to allow mud to pass and prevent sand in the receiving groove from passing, and water is drained by the receiving groove. Therefore, after the redundant water is discharged through the third water outlet on the receiving component 25, the sand in the receiving groove is favorably dried.

In one embodiment, referring to fig. 6 and 7, the mud content detecting device 2 further includes a second telescopic member 29, the second telescopic member 29 is located below the receiving assembly 25, and the second telescopic member 29 is configured to lift one end of the receiving assembly 25 so as to discharge sand on the receiving assembly 25 to the fineness modulus detecting device 3 from the other end of the receiving assembly 25. Therefore, after the sand on the bearing component 25 is dried, the mud content of the initial sand can be calculated through the obtained data, and after the mud content is detected, the sand on the bearing component 25 can be discharged to the fineness modulus detection device 3 from the other end of the bearing component 25 through the second telescopic component 29 by lifting up one end of the bearing component 25, so that the fineness modulus of the initial sand can be detected.

In one embodiment, the second telescoping member 29 may be pivotally connected to one end of the receiving assembly 25.

In an embodiment, referring to fig. 6 and 7, the mud content detecting device 2 further includes a second insulating layer 27, and the second insulating layer 27 is located below the receiving assembly 25; the second heating member 26 is located above the second thermal insulation layer 27, and the second weighing member 28 is located below the second thermal insulation layer 27. The second weighing member 28 may carry a second thermally insulating layer 27, the weight of the receiving assembly 25 acting on the second weighing member 28 through the second thermally insulating layer 27. In this way, the second empty mass m3 obtained by the second weighing component 28 comprises the mass of the second thermally insulating layer 27 and the mass of the carrier assembly.

In one embodiment, second heating member 26 may be a resistance heater.

In one embodiment, second heating member 26 may be disposed within receiving assembly 25.

In an embodiment, referring to fig. 6 and 7, the mud content detecting device 2 further includes a second housing 22.

In one embodiment, referring to fig. 6 and 7, the receiving assembly 25, the second heating member 26 and the second weighing member 28 are disposed in the second housing 22.

In one embodiment, referring to fig. 6 and 7, the second telescopic member 29 and the second thermal insulation layer 27 are both located in the second casing 22.

In one embodiment, referring to fig. 6 and 7, the cleaning filter assembly 23 is partially disposed within the second housing 22. Specifically, the cleaning vessel 232, the first screen 235, the second screen 236, the cleaning drum 233, the second sand cleaning member, the second valve, the turbidity meter 2304, the support ring plate 237, the connection ring plate 238, and the switch plate 239 are located within the second housing 22. The push rod assembly 2301 extends from within the second housing 22 to outside the second housing 22.

In an embodiment, referring to fig. 6 and 7, an air suction opening 221 is formed on the second casing 22, and the air suction opening 221 is located above the receiving assembly 25 to discharge moisture evaporated from the sand on the receiving assembly 25. Therefore, evaporated moisture can be discharged in time, and the evaporated moisture is prevented from being condensed into water drops after being cooled to influence an experimental result.

In an embodiment, referring to fig. 6 and 7, a second sand outlet 222 is formed on the second housing 22. When the mud content is detected, the second telescopic member 29 lifts one end of the receiving assembly 25 to discharge the sand on the receiving assembly 25 out of the receiving assembly 25 from the other end of the receiving assembly 25, and the sand is discharged to the fineness modulus detecting device 3 through the second sand discharge port 222 of the second housing 22.

In one embodiment, the second weighing element 28 may be coupled to the second housing 22.

In an embodiment, referring to fig. 6 and 7, the mud content detecting device 2 further includes a first mounting frame 231 located in the second housing 22, and the first mounting frame 231 is connected to the cleaning filter assembly 23 and the side wall of the second housing 22 respectively, so as to mount and fix the cleaning filter assembly 23 in the second housing 22.

In an embodiment, referring to fig. 6 and 7, the mud content detecting device 2 further includes a second bracket 21, a bottom end of the second bracket 21 is connected to a bottom end of the compartment 5, and a top end of the second bracket 21 is connected to a bottom of the second housing 22.

In one embodiment, referring to fig. 10, the fineness modulus detecting apparatus 3 includes a sieving assembly 33, a vibrating assembly 37 and a third weighing unit. The screen unit 33 is configured to receive sand discharged from the mud content detector 2, the screen unit 33 includes a plurality of stages of screens 331 arranged in the vertical direction, and the aperture of the screen of the upper screen 331 is larger than the aperture of the screen of the lower screen 331. Vibration subassembly 37 sets up in the below of screening subassembly 33, and vibration subassembly 37 is configured as taking the vibration of screening subassembly 33 to carry out the screening to the sand that mud content detection device 2 discharged. Each stage of the screeners 331 is provided with a third weighing means to weigh at least the corresponding screener 331. In this way, when the screening assembly 33 is in the unloaded state, each third weighing component can obtain the unloaded mass of the corresponding screener 331, when the sand discharged by the mud content detecting device 2 enters the screening assembly 33, the vibrator is started to drive the screening assembly 33 to vibrate, each level of screener 331 screens sand grains with different sizes, the vibration is stopped after a period of vibration, for example, 20 minutes, and at this time, each third weighing component can obtain the loading mass of the corresponding screener 331 after screening. The difference between the loading mass and the unloaded mass after being screened by each stage of the screener 331 is the mass of the sand grains under the screening condition corresponding to the stage of the screener 331, and the fineness modulus of the initial sand can be obtained by utilizing a known calculation formula.

In one embodiment, the sieving module 33 comprises 7 sieves 331 arranged in the vertical direction, and the sieve mesh of each sieve 331 is 5mm, 2.5mm, 1.25mm, 630 μm, 315 μm and 160 μm in the order from top to bottom.

In one embodiment, the third weighing component may be a gravity sensor.

In one embodiment, a third weighing unit is attached to the bottom of each of the sifters 331.

In one embodiment, referring to fig. 10, the fineness modulus detecting device 3 further includes a first supporting column 38, a third telescopic member 39 and a collector 35. Each lower screener 331 is formed with a discharge port 3311 at an end facing the collector 35. The bottom end of the first support column 38 is fixedly connected to the vibration assembly 37, and the bottom end of the first support column 38 is fixedly connected to the vibration assembly 37, for example, by welding. The top end of the first support column 38 is rotatably connected to the third weighing unit corresponding to the lowermost sifter 331. The bottom end of the third telescopic member 39 is rotatably connected with the vibration assembly 37, and the top end of the third telescopic member 39 is rotatably connected with the third weighing member corresponding to the bottom-most sifter 331.

In an embodiment, referring to fig. 10, the fineness modulus detecting device 3 further includes a supporting component 34. A set of support members 34 is disposed between each two adjacent screeners 331. The top of each group of supporting components 34 is fixedly connected with the third weighing part at the bottom of the corresponding upper screening device 331, and illustratively, the top of each group of supporting components 34 is fixedly connected with the third weighing part at the bottom of the corresponding upper screening device 331 through bolts. The bottom of each set of support members 34 is fixedly connected to the corresponding underlying screener 331, which may be welded, for example. After the fineness modulus detection is completed, the third extensible member 39 is lifted up to discharge the sand in each of the screens 331 into the collector 35 through the corresponding discharge port 3311.

In an embodiment, the support assembly 34 may not be disposed between two adjacent sifters 331, and the fineness modulus detecting apparatus 3 further includes a second support column and a fourth telescopic member. A second supporting column and a fourth telescopic part are arranged between every two adjacent screeners 331. The bottom end of the second support column is fixedly connected to the corresponding lower screener 331, which may be welded, for example. The top end of the second support column is rotatably connected to a third weighing member at the bottom of the corresponding upper sifter 331. The bottom end of the fourth telescopic part is rotatably connected with the corresponding screener 331 below, and the top end of the fourth telescopic part is rotatably connected with the third weighing part at the bottom of the corresponding screener 331 above. In this manner, the screener 331 can be inclined from top to bottom step by step to discharge sand in the screener 331 step by step into the collector 35 through the discharge port 3311 after the fineness modulus detection is completed by using the fourth and third telescopic members 39.

In an embodiment, referring to fig. 10, the fineness modulus detecting device 3 further includes a third housing 31 and a second hopper 32. The screening assembly 33, the vibration assembly 37 and the third weighing means are all arranged within the third housing 31. The second hopper 32 is disposed above the screen assembly 33 and connected to the third casing 31, and the sand discharged from the mud content detector 2 falls through the second hopper 32 to the screen assembly 33. With such a configuration, the sand discharged from the mud content detector 2 is guided to the screening unit 33 through the second hopper 32, and the sand discharged from the mud content detector 2 can be prevented from scattering outside the screening unit 33.

In one embodiment, referring to fig. 10, the third housing 31 is formed with a discharge opening 311, the fineness modulus detecting apparatus 3 further includes a conveying assembly 36, the collector 35 is disposed on the conveying assembly 36, and the conveying assembly 36 is configured to convey the collector 35 to the discharge opening 311.

In one embodiment, referring to fig. 1 and fig. 2, the detecting apparatus further includes a feeding device 4, and the feeding device 4 is located above the water content detecting device 1. The feeding device 4 comprises a barrel 41 and a refining member 42. The cartridge 41 is located above the water content detecting device 1. The refining member 42 is positioned in the barrel 41 and connected with the barrel 41, an annular discharge port 43 is formed between the refining member 42 and the barrel 41, the refining member 42 is formed with a refining part 421, and the radial dimension of the refining part 421 is gradually reduced along the direction of the refining member 42 towards the feeding end of the barrel 41. In this structure, the radial size of the refining section 421 is gradually reduced in a direction in which the refining member 42 is directed to the feed end of the barrel 41, so that the refining section 421 has a function of uniformly scattering the initial sand. Before the initial sand enters the water content detection device 1, the initial sand is uniformly scattered by the material homogenizing part 421 of the material homogenizing member 42 in the feeding device 4, and then the initial sand is discharged from the annular discharge hole 43 to the water content detection device 1.

In one embodiment, referring to fig. 2, the cartridge 41 includes a cylindrical wall 411 and a mounting block 412 connected to the cylindrical wall 411. The mounting block 412 is connected to the refining member 42. In this way, the mounting of the homogenizing member 42 in the cartridge 41 can be achieved.

In one embodiment, referring to FIG. 2, the refining element 42 is located at the bottom of the barrel 41.

In one embodiment, referring to fig. 1, the feeding device 4 is disposed in the carriage 5.

In an embodiment, the detection apparatus may further comprise a third support, by which the feeding device 4 may be supported to a desired height, the third support being connected to the bottom of the carriage 5.

According to the detection equipment provided by the embodiment of the application, when the initial sand needs to be detected, the first valve is used for closing the outlet of the first hopper 15, the initial sand is placed into the feeding device 4 to be uniformly scattered and then enters the first hopper 15, the first unloaded mass m0 measured by the first weighing part 13 is recorded before the initial sand is fed, the first loaded mass m1 measured by the first weighing part 13 is recorded after the initial sand is fed, then the first heating part 16 is started to heat, when the data measured by the first weighing part 13 is not changed, the first dried mass m2 measured by the first weighing part 13 is recorded, and the water content of the initial sand is (m 1-m 2)/(m 1-m 0) × 100%.

After the water content detection is finished, the first valve is made to open the outlet of the first hopper 15, the second valve is made to close the first water discharge port 2322, sand in the first hopper 15 is discharged into the connecting pipe 7, the first sand cleaning component is started to spray water into the first hopper 15 through the first nozzle to clean sand adhered in the first hopper 15, and further power is provided for moving sand in the connecting pipe 7 to the mud content detection device 2, after the first sand cleaning component is started for about 3 minutes, the second power component is started to spray water into the connecting pipe 7 through the fourth nozzle 71, sand remaining in the connecting pipe 7 is conveyed to the first sand chamber 23051 of the mud content detection device 2, the sum of the water spray amount of the first nozzle and the water spray amount of the fourth nozzle 71 is determined according to the difference between the first drying mass m2 and the first unloaded mass m0, the sand remaining in the connecting pipe 7 is conveyed to the first sand chamber 23051, the third valve is made to open the sand cleaning component 23024, after the third valve is started to start the sand cleaning component 230, the second valve 230 is made to open, the third valve is made to close the third valve 230, the third valve is made to measure sand cleaning component 230, the sand cleaning component 230 is made to keep the third valve 230, after the third valve is started to start the third valve 230 is started to start the sand cleaning component 230, the sand cleaning component 230 is started to start the sand cleaning component to start the sand draining component to start the third draining component to start the draining process to.

After the mud content detection is completed, the second telescopic part 29 is started to discharge the sand on the receiving assembly 25 to the screening assembly 33 through the second hopper 32. The empty mass measured by the third weighing means corresponding to each screener 331 is recorded before the second telescopic member 29 is activated to discharge sand from the carrier assembly 25 to the screening assembly 33 via the second hopper 32. After the sand on the receiving component 25 is discharged to the screening component 33 through the second hopper 32, the vibrating component 37 is started to drive the screeners 331 to vibrate, after the vibration screening is carried out for 20 minutes, the screening is finished, the vibration is stopped, and the loading mass measured by the third weighing component corresponding to each screener 331 is recorded. The difference between the loaded mass measured by the third weighing member corresponding to each of the screeners 331 and the unloaded mass measured by the third weighing member corresponding to each of the screeners 331 is the mass of sand under the screening condition corresponding to each of the screeners 331, and the fineness modulus of the initial sand can be obtained by combining a known formula.

After the fineness modulus detection is completed, the third telescopic member 39 is started or the fourth telescopic member and the third telescopic member 39 are sequentially started along the up-down direction to collect the sand in each screener 331 into the collector 35, and the collector 35 is conveyed to the discharge opening 311 through the conveying assembly 36 to pour out the sample.

The detection equipment of the embodiment of the application realizes continuous detection of three indexes including water content, mud content and fineness modulus through automatic control, eliminates intervention of human factors, consumes less time for detection, and improves detection efficiency and precision.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detection apparatus for quality detection of primary sand, the detection apparatus comprising:

2. The detection apparatus according to claim 1, wherein the water content detection device comprises:

a first hopper configured to receive the initial sand;

a first weighing component configured to weigh at least the first hopper.

3. The apparatus according to claim 2, wherein the water content detecting device further comprises a first sand removing member having first nozzles, and at least two of the first nozzles arranged at intervals are annularly arranged at an inlet of the first hopper.

4. The detection apparatus according to claim 1, wherein the mud content detection device comprises:

5. The testing device of claim 4, wherein the wash filter assembly comprises:

6. The testing apparatus of claim 5, wherein the cleaning filter assembly further comprises a second screen disposed within the cleaning container and surrounding the cleaning roller, the second screen disposed between the first screen and the cleaning roller to separate the sand chamber into a first sand chamber and a second sand chamber, the second sand chamber disposed between the first sand chamber and the mud chamber, the first sand chamber configured to receive sand discharged from the water content testing device, and the second screen having an aperture configured to be larger than the aperture of the first screen and smaller than 3 mm.

7. The testing device of claim 5, wherein the wash filter assembly further comprises:

the push rod component is connected with the switch plate; and

8. The detection apparatus according to claim 7, wherein a side of the support ring plate facing radially away from the washing drum and a side of the switch plate facing radially away from the washing drum are both inclined towards the receiving assembly, the first filter mesh abutting against an edge of the connection ring plate facing radially towards the washing drum.

9. The testing device of claim 5, wherein the wash filter assembly further comprises:

10. The inspection apparatus according to claim 4, wherein the mud content inspection device further comprises a second telescopic member located below the receiving assembly, the second telescopic member being configured to lift one end of the receiving assembly to discharge sand on the receiving assembly from the other end of the receiving assembly to the fineness modulus inspection device.

11. The apparatus according to claim 4, wherein the device further comprises a second housing, and the receiving member, the second heating member and the second weighing member are disposed in the second housing, and a suction opening is formed in the second housing and located above the receiving member to discharge moisture evaporated from the sand on the receiving member.

12. The apparatus according to claim 1, wherein the fineness modulus detecting means comprises:

13. The detection apparatus according to any one of claims 1 to 12, further comprising a feeding device located above the water content detection device, the feeding device comprising:

a cartridge positioned above the water content detection device; and

14. The detection apparatus according to any one of claims 1 to 12, further comprising a console, wherein the console is electrically connected to the water content detection device, the mud content detection device and the fineness modulus detection device, respectively.

15. The detection apparatus according to claim 14, wherein the detection apparatus further comprises a carriage and rollers, the console, the water content detection device, the mud content detection device and the fineness modulus detection device are all disposed in the carriage, and the rollers are disposed at the bottom of the carriage.