Auxiliary device for testing silt content of aggregate

Abstract

The utility model relates to the technical field of concrete preparation, and provides an aggregate mud content testing auxiliary device which comprises a tray and a filter part, a containing groove is formed in the tray, and an opening is formed in the side wall of the containing groove; the filtering piece is in sealing connection with the tray and covers the opening. According to the auxiliary device for testing the silt content of the aggregate, the containing groove is formed in the tray to contain a sample needing to be detected, and the opening is formed in the side wall of the containing groove, so that water in the sample can be discharged from the opening when the tray is inclined, and the tray can be conveniently placed in a drying oven to be dried subsequently; meanwhile, the filtering piece is arranged at the opening, flowing water passing through the opening is filtered, it is avoided that particles needing to be weighed flow out along with water flow during drainage, the accuracy of a final measurement result is affected, and the problem that in the prior art, in the process of pouring water through an inclined tray, part of the particles are discharged along with the water flow, and consequently the silt content is not calculated accurately is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete preparation, in particular to an auxiliary device for testing the mud content of aggregates. Background Art

[0002] Aggregate is the largest raw material in concrete, and its performance directly affects the effect of concrete. Mud content is an important indicator to determine whether the aggregate can meet the concrete strength grade requirements. In order to determine whether the aggregate mud content meets the standard, the accuracy of the aggregate mud content test is becoming increasingly important.

[0003] In the related art, when testing the mud content of aggregates, the aggregates need to be washed through a sieve, and the particles and samples to be weighed are poured into a shallow dish, which is then placed in an oven to be dried to a constant weight, and then weighed after cooling. Since there is a lot of water in the particles and samples, the excess water in the shallow dish needs to be poured out before being placed in the oven. When the shallow dish is tilted to pour water, some particles and water are easily poured out together, resulting in inaccurate calculation of the final mud content. Utility Model Content

[0004] The utility model provides an aggregate mud content test auxiliary device, which is used to solve the problem in the prior art that in the process of pouring water from a tilted shallow tray, some particles are discharged with the water flow, resulting in inaccurate calculation of the mud content.

[0005] The utility model provides an aggregate mud content testing auxiliary device, comprising:

[0006] A tray, wherein the tray is provided with a receiving groove, and a side wall of the receiving groove is provided with an opening;

[0007] A filter element is sealed and connected to the tray and covers the opening.

[0008] According to the auxiliary device for testing the mud content of aggregates of the utility model, the filter element comprises a connecting portion and a filtering portion;

[0009] The connecting portion is connected to the outer side of the filtering portion in a surrounding manner;

[0010] The filter portion covers the opening; and the connection portion is sealed and connected to the tray.

[0011] According to the auxiliary device for testing the mud content of aggregates of the utility model, it also includes a sealing member, which is arranged between the connecting portion and the tray to seal the gap between the connecting portion and the tray.

[0012] According to the auxiliary device for testing the mud content of aggregates of the utility model, the sealing member is a sealing gasket;

[0013] Alternatively, the connection portion is bonded to the tray via a sealant.

[0014] According to the auxiliary device for testing mud content in aggregate of the utility model, the filter element is a sieve with a mesh number greater than or equal to 200 meshes.

[0015] According to the auxiliary device for testing the mud content of aggregates of the utility model, a scale is provided on the side wall of the containing tank along the depth direction.

[0016] According to the auxiliary device for testing the mud content of aggregates of the utility model, a gripping portion is convexly provided on the outer side wall of the tray.

[0017] According to the auxiliary device for testing the mud content of aggregates of the utility model, a partition is installed in the containing groove, the partition is opposite to the opening, the filter element includes a first filter element and a second filter element, the first filter element is installed on the partition, and the second filter element is installed at the opening, wherein the mesh number of the first filter element is smaller than the mesh number of the second filter element.

[0018] According to the auxiliary device for testing the mud content of aggregates of the utility model, the opposite groove walls of the accommodating groove are provided with clamping grooves, and the opposite sides of the partitions can be respectively plugged and installed in the corresponding clamping grooves.

[0019] The aggregate mud content testing auxiliary device according to the utility model further includes a cover plate, which is detachably connected to the tray to close the notch of the accommodating groove.

[0020] The utility model provides an auxiliary device for testing the mud content of aggregates, by arranging a receiving groove on a tray to accommodate the sample to be tested, and arranging an opening on the side wall of the receiving groove, so that when the tray is tilted, water in the sample can be discharged from the opening, which is convenient for the tray to be placed in an oven for drying later; at the same time, by arranging a filter at the opening, the flowing water passing through the opening is filtered, so as to prevent the particles to be weighed from flowing out with the water flow when draining, thereby preventing the accuracy of the final measurement result, and effectively solving the problem in the prior art that when the shallow tray is tilted to pour water, some particles are discharged with the water flow, resulting in inaccurate calculation of the mud content. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of an aggregate mud content testing auxiliary device provided by an embodiment of the utility model;

[0023] Figure 2It is a schematic diagram of a filter element provided in an embodiment of the utility model.

[0024] Reference numerals:

[0025] 1. Auxiliary device for testing the mud content of aggregate;

[0026] 11. tray; 111. receiving groove; 112. opening; 113. gripping portion;

[0027] 12. filter element; 121. connection part; 122. filter part. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Combine the following Figure 1-2 The utility model describes an auxiliary device for testing the mud content of aggregate.

[0032] In some embodiments, Figure 1As shown, the utility model provides an aggregate mud content testing auxiliary device 1, comprising: a tray 11 and a filter 12; a receiving groove 111 is provided on the tray 11, and an opening 112 is provided on the side wall of the receiving groove 111; the filter 12 is sealedly connected to the tray 11 and covers the opening 112.

[0033] In this embodiment, the tray 11 is provided with a receiving groove 111 to receive the sample to be tested, so that the sample can be placed in the tray 11 and placed in an oven for drying before weighing. At the same time, by providing an opening 112 on the side wall of the receiving groove 111, the water in the tray 11 can be poured out from the opening 112 by tilting the tray 11; in addition, by covering the position of the opening 112 with a filter 12, the filter 12 can filter the water flow at the opening 112, thereby preventing the particles to be weighed from flowing out with the water flow during drainage, thereby affecting the accuracy of the final measurement result.

[0034] It is easy to understand that the bottom of the opening 112 usually needs to maintain a certain height with the bottom of the receiving groove 111 to prevent the water in the tray 11 from flowing out of the opening 112 when the tray 11 is placed flat. The vertical distance between the bottom of the opening 112 and the bottom of the receiving groove 111 is mainly set according to the sample to be accommodated and the height of the accumulated water in the sample, usually 3-5 cm.

[0035] It is easy to understand that the filtering structure of the filter element 12 is mainly set according to the particle size that needs to be finally included in the calculation.

[0036] The auxiliary device 1 for testing the mud content of aggregates of the present invention is provided with a receiving groove 111 on a tray 11 to accommodate a sample to be tested, and an opening 112 is provided on the side wall of the receiving groove 111, so that water in the sample can be discharged from the opening 112 when the tray 11 is tilted, so as to facilitate the subsequent placement of the tray 11 in an oven for drying; at the same time, a filter 12 is provided at the opening 112 to filter the flowing water passing through the opening 112, so as to prevent particles to be weighed from flowing out with the water flow during drainage, thereby preventing the accuracy of the final measurement result from being affected, and effectively solving the problem in the prior art that, in the process of pouring water from a tilted shallow tray, some particles are discharged with the water flow, resulting in inaccurate calculation of the mud content.

[0037] Specifically, in some embodiments, Figure 1 and Figure 2 As shown, the filter element 12 includes a connecting portion 121 and a filtering portion 122 ; the connecting portion 121 is connected to the outside of the filtering portion 122 ; the filtering portion 122 covers the opening 112 ; and the connecting portion 121 is sealed and connected to the tray 11 .

[0038] In this embodiment, the connecting portion 121 surrounds the filter portion 122 and is sealed with the tray 11 to serve as a frame to support and fix the filter portion 122 and prevent moisture or particles from flowing out of the gap between the tray 11 and the filter element 12, so that the water flows completely through the filter portion 122 covering the opening 112, thereby preventing particles that need to be weighed from flowing out and affecting the accuracy of the final mud content measurement result, thereby improving the accuracy of mud content detection.

[0039] In some embodiments, the aggregate mud content testing auxiliary device 1 further includes a seal (not shown in the figure), which is disposed between the connecting portion 121 and the tray 11 to seal the gap between the connecting portion 121 and the tray 11 .

[0040] In this embodiment, a seal is provided between the connection part 121 and the tray 11, so that the seal can fill the gap between the sealed connection part 121 and the tray 11, thereby preventing the particles to be weighed from flowing out of the gap between the connection part 121 and the tray 11, thereby preventing the accuracy of the final measurement result from being affected, thereby improving the accuracy of the mud content detection.

[0041] Optionally, in some embodiments, the seal is a sealing gasket.

[0042] When the connecting portion 121 of this embodiment is connected to the tray 11, the connecting portion 121 and the tray 11 can respectively abut against the two sides of the sealing gasket and squeeze the sealing gasket, so that the gap between the connecting portion 121 and the tray 11 is completely blocked by the sealing gasket, thereby preventing the particles that need to be weighed from flowing out of the gap between the connecting portion 121 and the tray 11. The structure is simple, practical, and convenient for repeated disassembly.

[0043] Optionally, in some embodiments, the connection portion 121 is bonded to the tray 11 by a sealant.

[0044] In this embodiment, the connecting portion 121 can also be connected to the tray 11 by means of a sealant. The sealant, on the one hand, fixes the connecting portion 121 to the tray 11, and on the other hand, seals the gap between the connecting portion 121 and the tray 11 to prevent particles that need to be weighed from flowing out of the gap between the connecting portion 121 and the tray 11.

[0045] Specifically, in some embodiments, the filter element 12 is a screen with a mesh size greater than or equal to 200 meshes.

[0046] According to the existing testing standards, when calculating the mud content of aggregate, it is necessary to wash away particles with a particle size of less than 75 μm in the sample, and the remaining particles and the washed sample in the cleaning container are dried together and weighed. Therefore, a sieve with a mesh size of 200 or more can be used as the filter element 12, and the pore size of the sieve with a mesh size of 200 or more can be less than or equal to 75 μm, so as to prevent particles with a size of 75 μm or more from flowing out through the filter element 12 and affecting the accuracy of the final test result.

[0047] In a specific embodiment, a 200-mesh screen can be used as the filter 12 .

[0048] Optionally, in some embodiments, a scale is provided on the side wall of the receiving groove 111 along the depth direction.

[0049] In this embodiment, by setting a scale ruler on the side wall of the receiving tank 111, it is convenient for the inspector to visually estimate the sample and water volume in the receiving tank 111 to preliminarily determine whether the sample volume in the receiving tank 111 meets the requirements. It is also convenient for the inspector to judge whether the remaining water volume in the receiving tank 111 meets the standard for drying in the oven when performing drainage work.

[0050] Specifically, in some embodiments, Figure 1 As shown, a gripping portion 113 is protrudingly provided on the outer side wall of the tray 11 .

[0051] In this embodiment, a gripping portion 113 is provided on the outer wall of the tray 11 to facilitate the inspection personnel to grip, so that the inspection personnel can tilt the tray 11 and pour the water in the tray 11 out of the opening 112. The structure is simple, convenient and practical.

[0052] In a specific embodiment, Figure 1 As shown, the gripping portion 113 is a horizontal protrusion surrounding the outside of the slot of the receiving slot 111 .

[0053] It is understandable that the holding portion 113 may also be a handle or other structure provided on the side wall of the receiving groove 111 , and the present application does not limit this.

[0054] Optionally, the corners of the tray 11 may be rounded to prevent the corners of the tray 11 from being too sharp and scratching the inspector.

[0055] Optionally, in some embodiments not shown, a partition is installed in the accommodating groove 111, and the partition is opposite to the opening 112. The filter element 12 includes a first filter element and a second filter element. The first filter element is installed on the partition and the second filter element is installed at the opening 112, wherein the mesh number of the first filter element is smaller than the mesh number of the second filter element.

[0056] In this embodiment, a partition is installed in the containing groove 111 to divide the containing groove 111 into two groove bodies. When adding the sample to be tested into the containing groove 111, the sample and water can be poured into the groove body away from the opening 112 first. A first filter element is provided on the partition. After being filtered by the first filter element, the sample and water flow partially flow into the groove body where the opening 112 is located, and are filtered by the second filter element after the tray 11 is tilted and discharged from the opening 112; at the same time, since the mesh number of the first filter element is smaller than the mesh number of the second filter element, that is, the pore size of the first filter element is larger than the pore size of the second filter element, the first filter element can perform a preliminary filtration on the sample, thereby intercepting larger particles in the groove body away from the opening 112, allowing smaller particles to enter the groove body where the opening 112 is located. When draining water through the opening 112, the second filter element only needs to filter smaller particles, so that the second filter element is not easily blocked by large particles, and the discharge rate of water and particles is reduced.

[0057] Specifically, in some embodiments, the opposite groove walls of the accommodating groove 111 are provided with card slots, and the opposite sides of the partition can be plugged and installed in the corresponding card slots respectively.

[0058] In this embodiment, a card slot is provided in the accommodating groove 111, and the partition is inserted into the card slot, so that the testing personnel can quickly disassemble and assemble the partition, and clean or replace the partition. Alternatively, after the testing personnel determines that the current sample does not need secondary filtration, they can directly remove the card slot to improve drainage efficiency.

[0059] Optionally, in some embodiments, the aggregate mud content testing auxiliary device 1 further includes a cover plate, which is detachably connected to the tray 11 to close the notch of the accommodating groove 111 .

[0060] In this embodiment, a cover plate is provided at the notch position of the accommodating groove 111 to close the notch of the accommodating groove 111, so as to prevent the tray 11 from tilting too much due to improper operation of the inspector or other reasons, causing water and samples to flow out of the notch and affecting the final test result. At the same time, the cover plate and the tray 11 are detachably connected, and the cover plate can be removed from the tray 11 when drainage is not required, so as to add samples into the tray 11 through the notch or clean the tray 11.

[0061] In a specific embodiment, the tray 11 is a rectangular tray, and a rectangular opening 112 is provided on one side of the receiving groove 111 of the tray 11 . The opening 112 is fixedly covered with a 200-mesh screen as the filter 12 .

[0062] The test results of multiple mud content tests on the same batch of samples by the same tester using the aggregate mud content test auxiliary device 1 of the above embodiment and the original shallow pan are shown in Table 1.

[0063] Table 1

[0064]

[0065] It can be seen that in multiple tests, the mud content test results performed using the aggregate mud content test auxiliary device 1 of this embodiment are more stable and consistent.

[0066] Table 2 shows the test results of different testers using the aggregate mud content test auxiliary device 1 of the above embodiment and the original shallow pan to test the mud content of the same batch of samples.

[0067] Table 2

[0068]

[0069] It can be seen that when different inspectors conduct inspections, the results of the mud content inspections performed by the aggregate mud content testing auxiliary device 1 of this embodiment are more stable and consistent.

[0070] The above described embodiments are merely illustrative, and some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiments. Those skilled in the art may understand and implement the embodiments without creative effort.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An auxiliary device for testing aggregate mud content, characterized in that: include: A tray, wherein the tray is provided with a receiving groove, and a side wall of the receiving groove is provided with an opening; A filter element is sealed and connected to the tray and covers the opening.

2. The aggregate mud content testing auxiliary device according to claim 1 is characterized in that: The filter element comprises a connecting portion and a filtering portion; The connecting portion is connected to the outer side of the filtering portion in a surrounding manner; The filter portion covers the opening; and the connection portion is sealed and connected to the tray.

3. The aggregate mud content testing auxiliary device according to claim 2 is characterized in that: A sealing member is also included, and the sealing member is disposed between the connecting portion and the tray to seal a gap between the connecting portion and the tray.

4. The aggregate mud content testing auxiliary device according to claim 3 is characterized in that: The sealing member is a sealing gasket; Alternatively, the connection portion is bonded to the tray via a sealant.

5. The aggregate mud content testing auxiliary device according to claim 1, characterized in that: The filter element is a screen with a mesh number greater than or equal to 200 meshes.

6. The aggregate mud content testing auxiliary device according to claim 1, characterized in that: The side wall of the accommodating groove is provided with a scale along the depth direction.

7. The aggregate mud content testing auxiliary device according to claim 1, characterized in that: A gripping portion is convexly provided on the outer side wall of the tray.

8. The aggregate mud content testing auxiliary device according to claim 1, characterized in that: A partition is installed in the accommodating groove, and the partition is opposite to the opening. The filter element includes a first filter element and a second filter element. The first filter element is installed on the partition, and the second filter element is installed at the opening, wherein the mesh number of the first filter element is smaller than the mesh number of the second filter element.

9. The aggregate mud content testing auxiliary device according to claim 8, characterized in that: The opposite groove walls of the accommodating groove are provided with clamping grooves, and the opposite sides of the partition plate can be respectively plugged and installed in the corresponding clamping grooves.

10. The aggregate mud content testing auxiliary device according to any one of claims 1 to 9, characterized in that: A cover plate is also included, and the cover plate is detachably connected to the tray to close the notch of the accommodating groove.

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