Device for rapidly measuring moisture content of fine aggregate

Abstract

The utility model relates to the technical field of fine aggregate detection, in particular to a device for rapidly measuring the moisture content of fine aggregate. According to the technical scheme, the device comprises a base, an electronic scale and a heating box, the electronic scale is fixed to the upper end of the base, the four corners of the heating box are fixed to the upper portion of the base through supporting columns and located above the electronic scale, a heating plate is fixed in the heating box, a temperature display controller is fixed to the outer side of the heating box, and a connecting column is fixed to the upper end of the electronic scale; the upper end of the connecting column is located in the heating box and fixedly provided with a bearing plate, a tray is arranged on the bearing plate, a rotating rod is rotationally connected to the upper portion of the tray, a stirring rod is fixed to the bottom of the rotating rod, and a sealing cover is clamped to the upper end of the heating box. According to the utility model, fine aggregate can be slightly stirred in the drying process, so that the fine aggregate is continuously turned over, the evaporation of water can be accelerated on the premise of avoiding the loss of the fine aggregate, and the purpose of rapid determination is further realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fine aggregate detection, in particular to a device for rapidly measuring the moisture content of fine aggregate. Background Technique

[0002] Fine aggregate usually refers to aggregate with a diameter less than 5 mm, including natural sand and artificial sand. In concrete and mortar, fine aggregate is one of the important components. It can fill the voids between coarse aggregates, increase the compactness of the mixture, and participate in chemical reactions to improve the overall performance of the material.

[0003] The moisture content of fine aggregate is usually detected by the oven drying method, which is a standard method for determining the weight percentage of moisture in fine aggregate. During the drying process, the fine aggregate is usually laid flat on a tray and then inserted into the drying oven for drying. Usually, in order to avoid the loss of fine aggregate caused by stirring, no stirring operation is carried out, resulting in a relatively long drying time. Usually, a drying time of two hours is required, which prolongs the detection cycle. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for rapidly measuring the moisture content of fine aggregate to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: It includes a base, an electronic scale, and a heating box. The electronic scale is fixed on the upper end of the base. The four corners of the heating box are fixed above the base through support columns and are located above the electronic scale. A heating plate is fixed inside the heating box. A temperature display controller is fixed on the outside of the heating box. A connecting column is fixed on the upper end of the electronic scale. The upper end of the connecting column is located inside the heating box and is fixed with a bearing plate. A tray is arranged on the bearing plate. A rotating rod is rotatably connected above the tray. A stirring rod is fixed at the bottom of the rotating rod. A sealing cover is clamped on the upper end of the heating box. A driving motor for driving the rotating rod to rotate is fixed on the sealing cover.

[0006] Preferably, a spirit level is fixed on the upper end of the base, and threaded support columns are installed at the four corners of the base.

[0007] Preferably, a perforation is opened at the bottom of the heating box. The connecting column passes through the perforation and its diameter is smaller than the diameter of the perforation.

[0008] Preferably, air holes are evenly opened on the sealing cover.

[0009] Preferably, the output end of the driving motor is located below the sealing cover and is fixed with a driving rotating shaft. An adaptation groove is provided at the bottom of the driving rotating shaft. An adaptation plate is fixed at the middle position of the upper end of the rotating rod. The upper end of the adaptation plate is inserted into the adaptation groove and its width is smaller than the width of the adaptation groove. A speed reducer is installed between the output end of the driving motor and the driving rotating shaft. The stirring rods are distributed in a staggered manner on both sides of the bottom of the rotating rod.

[0010] Preferably, clamping grooves are provided on both sides of the bottom of the rotating rod, and the side wall of the upper end of the tray passes through the clamping grooves.

[0011] Preferably, both the bearing plate and the support columns are made of heat-insulating materials. A magnetic attraction block is fixed on the upper end of the bearing plate, and the bottom of the tray is adsorbed on the magnetic attraction block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: during the drying process, the fine aggregate can be slightly stirred to make it continuously turn over. On the premise of avoiding the loss of the fine aggregate, the evaporation of water can be accelerated, and thus the purpose of rapid determination can be achieved. Description of the Drawings

[0013] Figure 1 is a front sectional structure schematic diagram of a rapid determination device for the water content of fine aggregate of the present utility model;

[0014] Figure 2 is a combined structure schematic diagram of the tray and the rotating rod of a rapid determination device for the water content of fine aggregate of the present utility model;

[0015] Figure 3 is a distribution structure schematic diagram of the stirring rods at the bottom of the rotating rod of a rapid determination device for the water content of fine aggregate of the present utility model;

[0016] Figure 4 is a rapid determination device for the water content of fine aggregate of the present utility model Figure 1 The enlarged structure schematic diagram at A in.

[0017] In the figure: 1, base; 11, level; 12, threaded pillar; 2, electronic scale; 21, connecting column; 22, bearing plate; 23, magnetic attraction block; 3, heating box; 31, support column; 32, heating plate; 33, temperature display controller; 34, perforation; 4, tray; 5, sealing cover; 51, air hole; 52, driving motor; 53, driving rotating shaft; 54, adaptation groove; 55, speed reducer; 6, rotating rod; 61, adaptation plate; 62, clamping groove; 63, stirring rod. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution: including a base 1, an electronic scale 2, and a heating box 3. The electronic scale 2 is fixed to the upper end of the base 1. The four corners of the heating box 3 are fixed above the base 1 through support columns 31 and are located above the electronic scale 2. A heating plate 32 is fixed inside the heating box 3, and a temperature display controller 33 is fixed outside the heating box 3. A connecting column 21 is fixed to the upper end of the electronic scale 2. The upper end of the connecting column 21 is located inside the heating box 3 and is fixed with a bearing plate 22. A tray 4 is arranged on the bearing plate 22. A rotating rod 6 is rotatably connected above the tray 4. A stirring rod 63 is fixed to the bottom of the rotating rod 6. A sealing cover 5 is clamped to the upper end of the heating box 3. A driving motor 52 for driving the rotating rod 6 to rotate is fixed to the sealing cover 5. A level 11 is fixed to the upper end of the base 1. Threaded pillars 12 are installed at the four corners of the base 1. A through hole 34 is opened at the bottom of the heating box 3. The connecting column 21 passes through the through hole 34, and its diameter is smaller than the diameter of the through hole 34. Air holes 51 are evenly opened on the sealing cover 5.

[0020] The output end of the driving motor 52 is located below the sealing cover 5 and is fixed with a driving rotating shaft 53. An adaptation groove 54 is opened at the bottom of the driving rotating shaft 53. An adaptation plate 61 is fixed at the middle position of the upper end of the rotating rod 6. The upper end of the adaptation plate 61 is inserted into the adaptation groove 54, and its width is smaller than the width of the adaptation groove 54. A speed reducer 55 is installed between the output end of the driving motor 52 and the driving rotating shaft 53. The stirring rods 63 are distributed in a staggered manner on both sides of the bottom of the rotating rod 6. Card slots 62 are opened on both sides of the bottom of the rotating rod 6. The upper side wall of the tray 4 passes through the card slots 62. Both the bearing plate 22 and the support column 31 are made of heat-insulating materials. A magnetic attraction block 23 is fixed to the upper end of the bearing plate 22. The bottom of the tray 4 is adsorbed on the magnetic attraction block 23.

[0021] Working principle: First, connect the entire device to an external power supply. Then, load fine aggregates of a specified weight into the tray 4 and place them on the bearing plate 22. Use the magnetic attraction block 23 for magnetic fixation. Then, snap the sealing cover 5 onto the upper end of the heating box 3, so that the upper end of the adapter plate 61 is inserted into the adapter slot 54 of the drive shaft 53. At this time, the electronic scale 2 can be used to measure the overall weight of the tray 4. Then, heat the heating box 3 to a specified temperature using the heating plate 32 to start the evaporation of the moisture in the fine aggregates. At the same time, drive the drive shaft 53 to rotate slowly by the output end of the drive motor 52, thereby driving the adapter plate 61 and the rotating rod 6 to rotate. Finally, the stirring rod 63 can be driven to rotate in the tray 4 to turn the fine aggregates in a circular motion. Since the stirring rods 63 on both sides are staggered, it can ensure that the circular positions of a single rotation are staggered, ensuring that all the fine aggregates can be turned, increasing the moisture evaporation efficiency. And the overall weighing of the tray 4 also includes the weights of the stirring rod 63 and the rotating rod 6. Therefore, even if fine aggregate debris adheres to the stirring rod 63, it does not affect the overall weighing. When the weighing value of the electronic scale 2 no longer changes, the water content can be calculated, effectively improving the detection efficiency. And when placing the device, the level of the base 1 can be adjusted by rotating the threaded support column 12.

[0022] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for quickly measuring moisture content of fine aggregate, comprising a base (1), an electronic scale (2) and a heating box (3), characterized in that: The electronic scale (2) is fixed on the upper end of the base (1); the four corners of the heating box (3) are fixed on the upper end of the base (1) through supporting columns (31) and are located above the electronic scale (2); a heating plate (32) is fixed in the heating box (3); a temperature display controller (33) is fixed on the outer side of the heating box (3); a connecting column (21) is fixed on the upper end of the electronic scale (2); the upper end of the connecting column (21) is located in the heating box (3) and is fixed with a bearing plate (22); a tray (4) is arranged on the bearing plate (22); a rotating rod (6) is rotatably connected to the upper end of the tray (4); a stirring rod (63) is fixed to the bottom of the rotating rod (6); a sealing cover (5) is clamped on the upper end of the heating box (3); a driving motor (52) for driving the rotating rod (6) to rotate is fixed on the sealing cover (5).

2. A device for quickly determining moisture content of fine aggregate according to claim 1, characterized in that: A level (11) is fixed to the upper end of the base (1), and threaded pillars (12) are installed at the four corners of the base (1).

3. The device for quickly determining moisture content of fine aggregate according to claim 1, characterized in that: The bottom of the heating box (3) is provided with a through hole (34), and the connecting column (21) passes through the through hole (34), and the diameter of the connecting column (21) is smaller than the diameter of the through hole (34).

4. The device for quickly determining moisture content of fine aggregate according to claim 1, characterized in that: The sealing cover (5) is evenly provided with air holes (51).

5. The device for rapid determination of moisture content of fine aggregate according to claim 1, characterized in that: The output end of the driving motor (52) is located below the sealing cover (5) and is fixed with a driving shaft (53). An adapting groove (54) is provided at the bottom of the driving shaft (53). An adapting plate (61) is fixed at the middle position of the upper end of the rotating rod (6). The upper end of the adapting plate (61) is inserted into the adapting groove (54) and has a width smaller than that of the adapting groove (54). A reducer (55) is installed between the output end of the driving motor (52) and the driving shaft (53). The stirring rods (63) are staggered and distributed on both sides of the bottom of the rotating rod (6).

6. The device for quickly determining moisture content of fine aggregate according to claim 1, characterized in that: The bottom sides of the rotating rod (6) are provided with slots (62), and the upper side walls of the tray (4) pass through the slots (62).

7. The device for quickly measuring moisture content of fine aggregate according to claim 1, characterized in that: The bearing plate (22) and the support column (31) are both made of heat-insulating materials; a magnetic block (23) is fixed to the upper end of the bearing plate (22); and the bottom of the tray (4) is adsorbed on the magnetic block (23).

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