Sand sampling device and method of use thereof

Abstract

The present invention discloses a sand sampling device and a method for using the same, comprising a fixed frame and at least one sand mining frame, wherein the fixed frame is fixed on a sand transport ship, and one end of the fixed frame extends to the bottom of the sand compartment of the sand transport ship, and each sand mining frame can be detachably fixed on the fixed frame, and the sand mining frame comprises a sand frame and a plurality of closing plates, and the sand frame can be detachably fixed on the fixed frame, and the sand frame has a first cavity, an upper opening and at least one side opening, and a closing plate can be detachably fixed and closed at the upper opening and each side opening. By placing each sand mining frame in the sand compartment of the sand transport ship using the fixed frame, when the sand material to be mined and transported is filled into the sand compartment, the sand material will fill the first cavity of the sand frame, and after the drainage is completed, the sand mining frame is taken out layer by layer from top to bottom to measure the density of the sample taken, so as to assist in realizing the accurate measurement of the mined and transported sand material and promote standardized supervision.

Description

Technical Field

[0001] The present invention relates to the technical field of river sand mining management, and in particular to a sand sampling device and a use method thereof. Background Art

[0002] River sand is naturally deposited in the river before mining and dredging. The approved mining and dredging volumes are measured by volume. After mining and dredging, the transportation and landing to the yard are mainly measured by weight, which needs to be converted by the density of the sand. At present, the supervision and measurement of river sand mining and dredged sand landing are mainly based on on-site supervision and on-site measurement. The measurement of sand on sand transport ships involves the determination of sand density and the conversion of volume and weight. The sand on sand transport ships is affected by water flushing, sedimentation and migration, and the density of sand may change compared with the previous riverbed. Therefore, the density of sand in the river survey stage cannot be directly used for supervision and measurement. In addition, due to different industry goals and uses, the construction industry's method for measuring sand density more reflects the density of sand under the laboratory's prescribed processing process, and reflects the performance of sand samples, such as apparent density, loose stacking density, tight stacking density, etc. The tightness of the arrangement of sand particles at this density is completely different from the tightness of river sand blown into the sand transport ship. The density measurement results cannot be directly used for the measurement and supervision of river sand mining and dredged sand landing.

[0003] At present, there is no unified sampling tool and method for density measurement during the landing of river sand. The supervision methods and density measurement of river sand landing in different regions are not unified, and are not even scientific and rigorous enough. The density of sand converted by construction units during the supervision process is also quite different, which causes troubles for the supervision of river sand transportation ashore. There may be a situation where the actual mining and dredging volume in the river is greater than the registered volume, which also provides opportunities for excessive sand mining and illegal sand mining. The present invention provides a sand sampling device and sampling method, which can realize the precise measurement of sand and gravel mining and the use of dredged sand ashore, and promote the standardized management of on-site supervision units. Summary of the invention

[0004] The purpose of the present invention is to provide a sand sampling device and a method of using the same, so as to solve the problems existing in the above-mentioned prior art, realize accurate sampling of the mined and transported sand, improve the accurate measurement of the mined and transported sand, and promote standardized supervision.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a sand sampling device, comprising a fixed frame and at least one sand mining frame, wherein the fixed frame is used to be detachably fixed on a sand transporting ship, and one end of the fixed frame can extend to the bottom of a sand compartment of the sand transporting ship, and each of the sand mining frames can be detachably fixed on the fixed frame located in the sand compartment of the sand transporting ship. The sand mining frame comprises a sand frame and a plurality of closing plates, wherein the sand frame can be detachably fixed on the fixed frame, and the sand frame has a first cavity and an upper opening connected to the first cavity and at least one side opening, and the upper opening and each of the side openings are respectively detachably fixedly closed with a closing plate.

[0007] Preferably, the sand frame is further provided with a lower opening communicating with the first cavity, and a closing plate is detachably fixed and closed at the lower opening.

[0008] Preferably, the sand mining frame has a group of relative slide grooves on the surface of the upper opening and each of the side openings, and the two sides of the closing plate can be slidably inserted into and fixed in one of the slide grooves to close the upper opening or each of the side openings.

[0009] Preferably, at least one fixed block is symmetrically fixedly arranged on the surface of the sand mining frame having the upper opening and each of the side openings, and a gap is provided between a side of the fixed block close to the sand mining frame and an outer side surface corresponding to the sand mining frame, and the gap is the same as the thickness of the closing plate.

[0010] Preferably, the closing plate includes an insert and a limit member, one end of the limit member is fixedly connected to one end of the insert, both sides of the insert can be slidably inserted and fixed in one of the slide grooves and close the upper opening or each of the side openings, and the limit member can abut against one end of the slide groove and limit the insert from sliding in the slide groove in a direction away from the limit member.

[0011] Preferably, the fixing frame includes a suspension arm and a frame fixing plate, one end of the suspension arm is provided with a slot for clamping on the top side wall of the sand compartment of the sand transporting ship, and the other end of the suspension arm is detachably connected to one end of the frame fixing plate, the other end of the frame fixing plate extends toward the bottom of the sand compartment of the sand transporting ship, and a plurality of first mounting hole groups are provided on the frame fixing plate, each of the first mounting hole groups is arranged at intervals in the vertical direction, and a second mounting hole group is provided on the sand mining frame, and each of the second mounting hole groups is fixedly connected to one of the first mounting hole groups through a connecting piece.

[0012] Preferably, an extension plate is further included, one end of which is detachably fixedly connected to an end of the frame fixing plate away from the suspension arm, and a plurality of the first mounting hole groups are also provided on the extension plate in the vertical direction.

[0013] Preferably, both ends of the suspension arm can be relatively telescopic.

[0014] Preferably, a through hole is provided at one end of the suspension arm away from the card slot, a protrusion is fixedly provided at one end of the frame fixing plate, the size of the protrusion is larger than the size of the through hole, and the end of the frame fixing plate away from the protrusion can pass through the through hole.

[0015] The present invention also provides a method for using the sand sampling device described in any one of the above items, comprising the following steps:

[0016] S1, fix one end of the fixing frame on the side wall of the sand tank of the sand transport ship, and place the other end of the fixing frame in the sand tank of the sand transport ship;

[0017] S2, fixing each sand frame on a fixed frame at different heights;

[0018] S3, the sand-carrying ship carries out sand blowing and filling until the sand tank is full and the drainage work is completed;

[0019] S4, excavate and remove each sand frame from top to bottom in turn. When excavating the sand frame, after the top of the sand frame is exposed, use a closing plate to close the upper opening of the sand frame and the side opening of the sand frame to ensure the closure of the first cavity, ensure that the sand is kept in the first cavity, and remove the closed sand mining frame from the fixed frame.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The sand sampling device provided by the present invention places each sand mining frame in the sand chamber of the sand transport ship by using a fixed frame. When the mined sand is filled into the sand chamber, the sand will fill the first cavity of the sand frame. After the sand transport ship completes drainage, manual excavation is performed to dig out the sand frame layer by layer from top to bottom. While excavating, a sealing plate is sealed on each opening on the sand frame, such as the upper opening and each side opening, so that the sand in the sand frame is preserved in the first cavity, and the sampling of the sand in the sand chamber is completed, so that the density of the sample is measured, which assists in realizing the accurate measurement of the mined sand and promotes standardized supervision. Moreover, the sand mining frames are arranged at different heights to sample sand at different depths, so as to complete a more refined density measurement of the sand at different depths, and comprehensively obtain a more accurate sand mining and transportation volume.

[0022] Furthermore, the setting of the lower opening can ensure that the moisture in the mined sand is fully discharged downward when filling the sand frame, and ensure that the sand can be more fully filled into the sand frame when filling and burying, so as to ensure that the density of the sand in the sand frame at the depth is closer to the density of other sand in the sand chamber at the same depth, thereby ensuring the accuracy of sampling.

[0023] Furthermore, a set of relative slide grooves are used, and fixed closing plates are inserted into the slide grooves to achieve closing of the upper opening or the side openings by the closing plates. The structure is simple and convenient for manual opening or closing operations.

[0024] Furthermore, a slide groove is formed by the gap between the symmetrically arranged fixing blocks and the outer side surface of the sand mining frame, which has a simple structure and is convenient for processing and manufacturing.

[0025] Furthermore, the setting of the limit member is convenient for limiting the degree of insertion of the insert into the slide groove, which can not only serve as a reminder that the insert is in place, but also conveniently limit the insert when the side opening is closed, to avoid excessive insertion of the insert, which causes the upper end of the insert to be unable to effectively close the side opening, and the limit member can also facilitate manual operation to pull the closing plate out of the slide groove.

[0026] Furthermore, the fixed frame is composed of a suspension arm and a frame fixing plate. The suspension arm can facilitate the connection between the frame fixing plate and the side wall of the sand chamber, and the frame fixing plate can extend to the bottom of the sand chamber, so as to facilitate the placement of the sand mining frame at a specified depth, and the suspension arm can facilitate the control of the distance of the sand mining frame relative to the side wall of the sand chamber, thereby making the placement of the sand mining frame more flexible.

[0027] Furthermore, the setting of the extension plate can meet the requirement of a deeper placement of the sand mining frame, and the extension plate is connected to the frame fixing plate in a detachable manner, which can reduce the space occupied by its overall length and facilitate storage and transportation.

[0028] Furthermore, the suspension arm adopts a telescopic structure with telescopic ends, which makes it more convenient to adjust the distance between the sand mining frame and the side wall of the sand chamber.

[0029] Furthermore, the suspension arm is provided with a through hole, and the frame fixing plate is provided with a protrusion. The frame fixing plate is passed through the protrusion at one end so that the frame fixing plate can be fixed in relative position with the suspension arm after being passed through the through hole, which facilitates connection and disassembly and improves work efficiency.

[0030] The present invention also provides a method for using the sand sampling device based on the above. After the fixed frame and each sand frame are placed in position, the sand is filled by blowing and filling. After the drainage is completed, each sand frame is dug out layer by layer and taken out. At the same time, each sand frame is closed with a closing plate to ensure that the sand in the sand frame can be taken out more completely, and the upper opening is closed first, which can prevent the sand around the sand frame from falling into the first cavity, so as to ensure more accurate sampling, assist in improving the accurate measurement of the mined sand, and promote standardized supervision. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the overall structure of the sand sampling device provided by the present invention;

[0033] Figure 2 A schematic diagram of the structure of a sand frame in the sand sampling device provided by the present invention;

[0034] Figure 3 A schematic diagram of the structure of a closing plate in the sand sampling device provided by the present invention;

[0035] Figure 4 A schematic diagram of the structure of a suspension arm in the sand sampling device provided by the present invention;

[0036] Figure 5 A schematic diagram of the structure of a frame fixing plate and an extension plate in the sand sampling device provided by the present invention;

[0037] Figure 6 This is a structural schematic diagram of the sand sampling device provided by the present invention being installed in the sand compartment of a sand transport ship.

[0038] In the figure: 100-sand sampling device; 10-suspension arm; 11-card slot; 12-through hole; 20-frame fixing plate; 21-first mounting hole group; 30-sand mining frame; 31-sand frame; 32-closing plate; 321-insert; 322-limiting member; 33-upper opening; 34-side opening; 35-lower opening; 36-slide; 37-fixing block; 38-bump; 39-second mounting hole group; 40-extension plate; 50-sand chamber. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The purpose of the present invention is to provide a sand sampling device and a method of using the same, so as to solve the problems existing in the prior art, realize accurate sampling of the mined and transported sand, improve the accurate measurement of the mined and transported sand, and promote standardized supervision.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Embodiment 1

[0043] This embodiment provides a sand sampling device 100, such as Figure 1 to Figure 6 As shown, it includes a fixed frame and at least one sand mining frame 30, the fixed frame is used to be detachably fixed on the sand transporting ship, and one end of the fixed frame can extend to the bottom of the sand compartment 50 of the sand transporting ship, each sand mining frame 30 can be detachably fixed on the fixed frame located in the sand compartment 50 of the sand transporting ship, the sand mining frame 30 includes a sand frame 31 and a plurality of closing plates 32, the sand frame 31 can be detachably fixed on the fixed frame, the sand frame 31 has a first cavity and an upper opening 33 connected to the first cavity and at least one side opening 34, the upper opening 33 and each side opening 34 are respectively detachably fixedly closed with a closing plate 32. By placing each sand mining frame 30 in the sand compartment 50 of the sand transporting ship using a fixed frame, when the mined sand is filled into the sand compartment 50, the sand will fill the first cavity of the sand frame 31. After the sand transporting ship has completed the drainage, manual excavation is performed to dig out the sand frame 31 layer by layer from top to bottom. While excavating, the sealing plate 32 is sealed on each opening on the sand frame 31, such as the upper opening 33 and each side opening 34, so that the sand in the sand frame 31 is preserved in the first cavity, and the sand in the sand compartment 50 is sampled, and then the density of the sample is measured, which assists in achieving accurate measurement of the mined sand and promotes standardized supervision; and the sand mining frames 30 are arranged at different heights to sample sand at different depths, complete a more refined density measurement of sand at different depths, and comprehensively obtain a more accurate amount of sand mined and transported. The sand samples mined by the sand mining frames 30 are directly sampled from the sand compartment 50 of the sand transporting ship, which is more accurate and reliable.

[0044] Specifically, the sources of sand include not only special mining but also dredging, which means it is applicable to both river sand mining and river dredging sand.

[0045] Specifically, in the sand compartment 50 of the sand transport ship, the density of the sand at the bottom is different from that of the sand at the top along the vertical direction. Therefore, multiple sand sampling frames 30 can be installed in the vertical direction according to actual conditions to sample the sand.

[0046] Among the optional solutions of this embodiment, it is more preferred that Figure 2As shown, the sand frame 31 is also provided with a lower opening 35 connected to the first cavity, and a closing plate 32 is fixedly closed at the lower opening 35 in a detachable manner. The setting of the lower opening 35 can ensure that the water in the sand material is fully discharged downward when the sand material is filled into the sand frame 31, and ensure that the sand material can be more fully filled into the sand frame 31 when filling and burying, so as to ensure that the density of the sand material in the sand frame 31 at the depth is closer to the density of other sand materials in the sand chamber 50 at the same depth, thereby ensuring the accuracy of sampling.

[0047] Specifically, the upper opening 33 , the lower opening 35 and the side openings 34 are provided so as to facilitate the movement and sedimentation of water flow and silt in the sand material in the sand chamber 50 when the sand material is blown into the sand chamber 50 .

[0048] Among the optional solutions of this embodiment, it is more preferred that Figure 2 As shown, a group of relative slide grooves 36 are arranged on the surface of the sand mining frame 30 having the upper opening 33 and each side opening 34, and both sides of the closing plate 32 can be slidably inserted and fixed in a slide groove 36 and close the upper opening 33 or each side opening 34. A group of relative slide grooves 36 are used, and the closing plate 32 is inserted and fixed in the slide groove 36 to achieve the closing of the upper opening 33 or each side opening 34 by the closing plate 32. The structure is simple and convenient for manual opening or closing operation.

[0049] Specifically, the sand frame 31 can be a hexahedral square frame, such as a cube-shaped frame, or other regular-shaped frames. The regular-shaped frame is used to facilitate the direct acquisition of sand samples with precise volumes.

[0050] Specifically, when the sand frame 31 is a hexahedral square frame, it has an upper top surface, a lower bottom surface and four side surfaces, an upper opening 33 connected to the first cavity is provided on the upper top surface, a lower opening 35 connected to the first cavity is provided on the lower bottom surface, a side opening 34 is provided on three of the four side surfaces respectively, and the other side surface is enclosed with a mounting plate, and the upper end of the mounting plate extends upward beyond the upper top surface, and a second mounting hole group 39 is provided on the portion of the mounting plate beyond the upper top surface, and the second mounting hole group 39 can be at least one through hole or a threaded hole.

[0051] Among the optional solutions of this embodiment, it is more preferred that Figure 2 As shown, at least one fixing block 37 is symmetrically fixedly arranged on the surface of the sand mining frame 30 having the upper opening 33 and each side opening 34, and a gap is formed between the side of the fixing block 37 close to the sand mining frame 30 and the outer side surface corresponding to the sand mining frame 30, and the gap has the same thickness as the closing plate 32. The gap formed between the symmetrically arranged fixing blocks 37 and the outer side surface of the sand mining frame 30 forms a slide groove 36, which has a simple structure and is convenient for processing and manufacturing.

[0052] Specifically, it is preferred to set two groups of relative fixed blocks 37 on each surface of the sand frame 31, and the two groups of relative fixed blocks 37 are set one in front of the other. The two fixed blocks 37 on the same side of the two groups of relative fixed blocks 37 form a slide groove 36, and the two fixed blocks 37 on the other side of the two groups of relative fixed blocks 37 form another slide groove 36 opposite to it. The two groups of fixed blocks 37 are parallel and have a spacing between them, so as to both meet the formation of the slide groove 36 and reduce a certain amount of weight.

[0053] Among the optional solutions of this embodiment, it is more preferred that Figure 3 As shown, the closing plate 32 includes an insert 321 and a stopper 322, one end of the stopper 322 is fixedly connected to one end of the insert 321, and both sides of the insert 321 can be slidably inserted and fixed in a slide groove 36 and close the upper opening 33 or each side opening 34, and the stopper 322 can abut against one end of the slide groove 36 and limit the insertion 321 from sliding in the slide groove 36 in a direction away from the stopper 322. The setting of the stopper 322 is convenient for limiting the insertion degree of the insert 321 into the slide groove 36, which can not only serve as a reminder that the insert 321 is inserted in place, but also can conveniently limit the insert 321 when the side opening 34 is closed, so as to avoid the insert 321 being inserted too much and causing the upper end of the insert 321 to fail to effectively close the side opening 34, and the stopper 322 can also facilitate manual operation so as to pull the closing plate 32 out of the slide groove 36.

[0054] Specifically, the limiting member 322 and the inserting member 321 are integrally formed.

[0055] Specifically, the width of the limiting member 322 is greater than the width of the inserting member 321 , and the maximum width between two opposite sliding grooves 36 on each surface is less than the width of the limiting member 322 and not less than the width of the inserting member 321 .

[0056] Specifically, the closing plate 32 is in a "convex" shape, and after the closing plate 32 is inserted and fixed in the slide groove 36, the closing plate 32 does not protrude from the four surface edges around the surface where the sand mining frame 30 is located, so as to facilitate the insertion and removal of the closing plates 32 on other surfaces.

[0057] Specifically, when the closing plate 32 is inserted into the slide groove 36 to close the side opening 34, the closing plate 32 has one end of the limiter 322 at the top, and the end of the lower end having the inserting member 321 is inserted from top to bottom into the two opposite slide grooves 36 on each surface of the sand mining frame 30.

[0058] Specifically, the structures of the slide grooves 36 on the surface where the upper opening 33, the side openings 34 and the lower opening 35 are located are the same.

[0059] Among the optional solutions of this embodiment, it is more preferred that Figure 1 , Figure 4 and Figure 5 As shown, the fixing frame includes a suspension arm 10 and a frame fixing plate 20, one end of the suspension arm 10 is provided with a slot 11 for clamping on the top side wall of the sand compartment 50 of the sand transporting ship, and the other end of the suspension arm 10 is detachably connected to one end of the frame fixing plate 20, and the other end of the frame fixing plate 20 extends to the bottom of the sand compartment 50 of the sand transporting ship, and a plurality of first mounting hole groups 21 are provided on the frame fixing plate 20, and each first mounting hole group 21 is arranged at intervals in the vertical direction, and a second mounting hole group 39 is provided on the sand mining frame 30, and each second mounting hole group 39 is fixedly connected to a first mounting hole group 21 through a connecting piece. The fixing frame is composed of a suspension arm 10 and a frame fixing plate 20. The suspension arm 10 can facilitate the connection between the frame fixing plate 20 and the side wall of the sand chamber 50, and the frame fixing plate 20 can extend to the bottom of the sand chamber 50, so as to facilitate the placement of the sand mining frame 30 at a specified depth. The suspension arm 10 can conveniently control the distance between the sand mining frame 30 and the side wall of the sand chamber 50, thereby making the placement of the sand mining frame 30 more flexible.

[0060] Specifically, the slot 11 is an inverted U-shaped slot, and when in use, it is directly inserted into the top of the side wall of the sand chamber 50, which is convenient for its clamping and fixing, and also convenient for its disassembly.

[0061] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 5 As shown, the sand sampling device 100 further includes an extension plate 40, one end of which is detachably fixedly connected to the end of the frame fixing plate 20 away from the suspension arm 10, and a plurality of first mounting hole groups 21 are also provided in the vertical direction on the extension plate 40. The provision of the extension plate 40 can meet the deeper placement of the sand mining frame 30, and the extension plate 40 is detachably connected to the frame fixing plate 20, which can reduce the overall length and space occupied, and is convenient for storage and transportation.

[0062] Specifically, the connection structure between the extension plate 40 and the frame fixing plate 20 can be any existing connection structure, such as Figure 5 As shown, a protruding plate is provided at one end of the frame fixing plate 20 away from the suspension arm 10, and a slot is provided at one end of the extension plate 40. The protruding plate can be inserted into the slot, and through holes are provided at corresponding positions of the protruding plate and the slot. The fixed connection between the frame fixing plate 20 and the extension plate 40 is realized by passing connecting parts such as bolts and nuts through the through holes.

[0063] Specifically, the first mounting hole group 21 includes a plurality of hole groups, and the hole groups are arranged at intervals along the vertical direction so as to fine-tune the position of the sand frame 31 in the vertical direction.

[0064] In the optional scheme of this embodiment, it is more preferred that the two ends of the suspension arm 10 can be relatively telescopic. The suspension arm 10 adopts a telescopic structure with two ends that can be telescopic, which is convenient for adjusting the distance between the sand mining frame 30 and the side wall of the sand chamber 50.

[0065] Specifically, the structure at both ends of the suspension arm 10 that can achieve relative telescopic extension is an existing structure, for example, a structure similar to the telescopic rod of an umbrella, which can be manually extended and retracted to achieve both telescopic and locking of the length after extension; it can also be a telescopic structure using a hydraulic cylinder, and the operator can use hydraulic oil or other media to achieve its extension and retraction.

[0066] Among the optional solutions of this embodiment, it is more preferred that Figure 1 , Figure 4 and Figure 5 As shown, a through hole 12 is provided at one end of the suspension arm 10 away from the card slot 11, and a protrusion 38 is fixedly provided at one end of the frame fixing plate 20. The size of the protrusion 38 is larger than the size of the through hole 12, and the end of the frame fixing plate 20 away from the protrusion 38 can pass through the through hole 12. The suspension arm 10 is provided with a through hole 12, and the frame fixing plate 20 is provided with a protrusion 38. The frame fixing plate 20 is provided with a protrusion 38 at one end so that the frame fixing plate 20 can be fixed in relative position with the suspension arm 10 after being passed through the through hole 12, which facilitates connection and disassembly and improves work efficiency.

[0067] Embodiment 2

[0068] This embodiment provides a method for using the sand sampling device 100 of Embodiment 1, comprising the following steps:

[0069] S1, fix one end of the fixing frame to the side wall of the sand compartment 50 of the sand transporting ship, and place the other end of the fixing frame in the sand compartment 50 of the sand transporting ship;

[0070] Specifically, before S1, it is necessary to ensure that the sand tank 50 of the sand transport ship is empty and free of sand;

[0071] S2, fix each sand frame 31 at different heights on the fixing frame. Specifically, the number of sand frames 31 to be installed and the different positions of the sand frames 31 in the sand chamber 50 can be selected according to factors such as the depth of the sand chamber 50 of different sand transport ships and the required sampling positions and quantities;

[0072] S3, the sand transport ship carries out the blowing and filling of sand until the sand tank 50 is full and the drainage work is completed;

[0073] S4, excavate and remove each sand frame 31 from top to bottom in turn. When excavating the sand frame 31, after the top of the sand frame 31 is exposed, use the closing plate 32 to close the upper opening 33 of the sand frame 31 and the side opening 34 of the sand frame 31 to ensure the closure of the first cavity, ensure that the sand material is kept in the first cavity, and remove the closed sand mining frame 30 from the fixed frame.

[0074] Specifically, when excavating in S4, it is necessary to ensure the flatness of the bottom of the excavated pit. A shovel can be used for excavation first, until the sand frame 31 is almost dug, and then a small shovel is used to peel off layer by layer until the top of the sand frame 31 is exposed, and the upper opening 33 is first closed with a closing plate 32 to ensure that the sand material in the first cavity of the sand frame 31 is not disturbed by other sand materials entering from the upper part; and the side openings 34 are closed in turn with the closing plates 32. When the lower surface of the sand frame 31 is dug, the lower opening 35 is closed with the closing plate 32.

[0075] Specifically, after all the sealed sand mining frames 30 are removed, they are sent to the laboratory. It should be noted that vibration disturbances should be avoided during transportation to the laboratory to prevent the loosening of the closing plate 32 and the leakage of the sand material inside the sand mining frame 30.

[0076] After the fixed frame and each sand frame 31 are placed in position, the sand is filled by blowing and filling. After the drainage is completed, each sand frame 31 is dug out layer by layer and taken out. At the same time, each sand frame 31 is closed with a closing plate 32 to ensure that the sand in the sand frame 31 can be taken out more completely, and the upper opening 33 is closed first, which can prevent the sand around the sand frame 31 from falling into the first cavity, so as to ensure more accurate sampling, help improve the accurate measurement of the sand collected and transported, and promote standardized supervision.

[0077] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A sand sampling device, characterized in that: It comprises a fixing frame and at least one sand mining frame, wherein the fixing frame is used to be detachably fixed on a sand transporting ship, and one end of the fixing frame can extend to the bottom of the sand compartment of the sand transporting ship, and each of the sand mining frames can be detachably fixed on the fixing frame located in the sand compartment of the sand transporting ship, and the sand mining frame comprises a sand frame and a plurality of closing plates, wherein the sand frame can be detachably fixed on the fixing frame, and the sand frame has a first cavity and an upper opening and at least one side opening communicating with the first cavity, and the upper opening and each of the side openings are respectively detachably fixedly closed with a closing plate; The sand frame is also provided with a lower opening communicating with the first cavity, and a closing plate is fixedly and detachably closed at the lower opening.

2. The sand sampling device according to claim 1, characterized in that: The sand mining frame has a group of relative slide grooves on the surface of the upper opening and each of the side openings, and the two sides of the closing plate can be slidably inserted into and fixed in one of the slide grooves to close the upper opening or each of the side openings.

3. The sand sampling device according to claim 2, characterized in that: The sand mining frame has at least one fixed block symmetrically fixed on the surface of the upper opening and each of the side openings, and a gap is provided between a side of the fixed block close to the sand mining frame and an outer side surface corresponding to the sand mining frame, and the gap is the same as the thickness of the closing plate.

4. The sand sampling device according to claim 2, characterized in that: The closing plate includes an insert and a limiter, one end of the limiter is fixedly connected to one end of the inserter, both sides of the inserter can be slidably inserted and fixed in one of the slide grooves and close the upper opening or each of the side openings, and the limiter can abut against one end of the slide groove and limit the inserter from sliding in the slide groove in a direction away from the limiter.

5. The sand sampling device according to claim 1, characterized in that: The fixing frame includes a suspension arm and a frame fixing plate, one end of the suspension arm is provided with a slot for clamping on the top side wall of the sand compartment of the sand transporting ship, and the other end of the suspension arm is detachably connected to one end of the frame fixing plate, and the other end of the frame fixing plate extends to the bottom of the sand compartment of the sand transporting ship, and a plurality of first mounting hole groups are provided on the frame fixing plate, each of which is arranged at intervals in the vertical direction, and a second mounting hole group is provided on the sand mining frame, and each of the second mounting hole groups is fixedly connected to one of the first mounting hole groups through a connecting piece.

6. The sand sampling device according to claim 5, characterized in that: It also includes an extension plate, one end of which is detachably fixedly connected to an end of the frame fixing plate away from the suspension arm, and a plurality of first mounting hole groups are also arranged on the extension plate in the vertical direction.

7. The sand sampling device according to claim 5, characterized in that: The two ends of the suspension arm can be relatively telescopic.

8. The sand sampling device according to claim 5, characterized in that: A through hole is provided at one end of the suspension arm away from the card slot, a bump is fixedly provided at one end of the frame fixing plate, the size of the bump is larger than the size of the through hole, and the end of the frame fixing plate away from the bump can pass through the through hole.

9. A method for using the sand sampling device according to any one of claims 1 to 8, characterized in that: The following steps are included: S1, fix one end of the fixing frame on the side wall of the sand tank of the sand transport ship, and place the other end of the fixing frame in the sand tank of the sand transport ship; S2, fixing each sand frame on a fixed frame at different heights; S3, the sand-carrying ship carries out sand blowing and filling until the sand tank is full and the drainage work is completed; S4, excavate and remove each sand frame from top to bottom in turn. When excavating the sand frame, after the top of the sand frame is exposed, use a closing plate to close the upper opening of the sand frame and the side opening of the sand frame to ensure the closure of the first cavity, ensure that the sand is kept in the first cavity, and remove the closed sand mining frame from the fixed frame.

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