Aggregate water content detection drying device for commercial concrete preparation

Abstract

The utility model discloses an aggregate moisture content detecting and drying device for commodity concrete preparation, which comprises a drying oven, a plurality of layers of tray mechanisms capable of sliding out are arranged in the drying oven, the tray mechanisms are arranged at equal intervals along the vertical direction, a corresponding weighing sensor is arranged below each tray mechanism, and the weighing sensor is connected with the drying oven. The induction ends of the weighing sensors are in induction fit with the corresponding tray mechanisms, a display screen, a control box and a voice broadcast device are arranged on one side of the drying oven, the weighing sensors are in display fit with the display screen through the control box, and the weighing sensors are in linkage fit with the voice broadcast device through the control box. A new sample can be placed at any time, meanwhile, the drying state is conveniently obtained, the drying progress is prompted through the voice broadcaster, and the working efficiency is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of commercial concrete preparation, in particular to an aggregate moisture content detection and drying device used for commercial concrete preparation. Background Art

[0002] Before preparing commercial concrete, each raw material needs to be tested. For aggregates, the shape, particle size distribution and moisture content need to be tested. The existing moisture content method usually adopts the drying method, which is to dry the clean container containing aggregates in an oven until the weight does not change, that is, the drying is completed, and the moisture content is obtained by calculation after weighing. The existing moisture content detection method has the following problems:

[0003] (1) The drying status cannot be obtained in the oven, and it is necessary to take out the products several times and weigh them frequently to determine whether the drying is complete. There are safety hazards such as scalding during the process.

[0004] (2) The existing integrated drying oven for moisture content calculation is difficult to add samples after the samples are placed in it. Samples can only be added when the next batch of tests are carried out. In addition, calculations are usually performed only for a single layer, making it difficult to calculate the moisture content of multiple samples at the same time, which is inconvenient to use. Utility Model Content

[0005] The utility model provides an aggregate moisture content detection and drying device for commercial concrete preparation, aiming to solve the problems of frequent weighing required to obtain the drying status during the moisture content detection test, inability to add samples in the middle, and limited detection quantity leading to inconvenience in use.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An aggregate moisture content detection and drying device for preparing commercial concrete comprises an oven, wherein a plurality of layers of slidable tray mechanisms are arranged in the oven, wherein the tray mechanisms are arranged at equal intervals in the vertical direction, and a corresponding weighing sensor is arranged under each tray mechanism, wherein the sensing end of the weighing sensor forms a sensing match with the corresponding tray mechanism, and a display screen, a control box and a voice announcer are provided on one side of the oven, wherein the weighing sensors form a display match with the display screen through the control box, and the weighing sensors form a linkage match with the voice announcer through the control box.

[0008] Preferably, a PLC controller is provided in the control box, and the weighing sensor is connected to the display screen and the voice announcer through the PLC controller.

[0009] As a more preferred embodiment, the voice announcer is detachably arranged on the outside of the control box.

[0010] Furthermore, each of the tray mechanisms includes a pair of relatively arranged support plates, which are horizontally arranged on both sides of the oven, and each support plate is elastically fixed with an L-shaped mounting block through a number of elastic support bases. The L-shaped mounting blocks on both sides are arranged relatively to each other at right angles facing outwards, and the L-shaped mounting blocks on both sides cooperate to form a slide groove, and a grid tray is detachably slidably fitted in the slide groove.

[0011] Furthermore, one right-angled side of the L-shaped mounting block is vertically arranged parallel to the inner wall of the oven, and the other right-angled side of the L-shaped mounting block is horizontally arranged pointing into the oven.

[0012] Specifically, the elastic support bases are evenly spaced along the sliding direction, are arranged vertically, and the bottom fixed ends of the elastic support bases are fixedly matched with the support plate, and the top elastic support ends of the elastic support bases are fixedly matched with the L-shaped mounting block.

[0013] More specifically, when the grid tray slides into the slide groove, the grid tray is received in the L-shaped mounting block, the weighing sensor is arranged in the middle position of the support plate, and the bottom of the L-shaped mounting block forms an inductive fit with the sensing end of the weighing sensor.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model monitors the weight of each layer of the tray mechanism vertically through the corresponding weighing sensor. When the monitored value tends to be constant, it means that the material on the tray mechanism of this layer is dried. The test personnel are notified through the voice announcer. The staff does not need to take out the weighing frequently. During the process, they can do other tests and wait for the voice notification, thereby improving work efficiency.

[0016] 2. The utility model can monitor all samples on the tray mechanism of the layer at the same time. A large number of samples can be placed at one time during the drying process, and samples can be added in the middle without affecting the overall operation. It is convenient for temporary testing and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the arrangement of the tray mechanism of the utility model;

[0019] Figure 3 It is a front view schematic diagram of the tray mechanism of the utility model;

[0020] Figure 4 It is a side cross-sectional schematic diagram of the tray mechanism of the utility model;

[0021] In the figure: 1. oven;

[0022] 2. Tray mechanism; 201. Support plate; 202. Elastic support base; 203. L-shaped mounting block; 204. Slide groove; 205. Grid tray;

[0023] 3. Weighing sensor; 4. Display screen; 5. Control box; 6. Voice announcer. DETAILED DESCRIPTION

[0024] As follows, embodiments are further described with reference to the accompanying drawings.

[0025] like Figure 1~Figure 4 As shown, as a preferred embodiment 1, an aggregate moisture content detection and drying device for preparing commercial concrete includes an oven 1, wherein the oven 1 is provided with a plurality of layers of slidable tray mechanisms 2, wherein the tray mechanisms 2 are arranged at equal intervals in the vertical direction, and a corresponding weighing sensor 3 is provided under each tray mechanism 2, wherein the sensing end of the weighing sensor 3 forms an inductive cooperation with the corresponding tray mechanism 2, and a display screen 4, a control box 5 and a voice announcer 6 are provided on one side of the oven 1, wherein the weighing sensors 3 form a display cooperation with the display screen 4 through the control box 5, and the weighing sensors 3 form a linkage cooperation with the voice announcer 6 through the control box 5.

[0026] Embodiment 1 provides an aggregate moisture content detection and drying device for commercial concrete preparation. In the aggregate moisture content detection test before commercial concrete preparation, multiple clean containers filled with aggregates can be placed on each layer of the tray mechanism 2 at the same time. Then, the corresponding weighing sensor 3 is used to monitor each layer of the tray mechanism 2, and the corresponding weighing sensor 3 is used to monitor each layer of the tray mechanism 2, and the corresponding weighing sensor 3 is used to monitor the corresponding weighing sensor 3 on the display screen 4. The ... The device is linked to the voice announcer 6 to start, notifying the staff that the materials on the tray mechanism 2 of the corresponding layer have been dried and can be taken out for weighing to calculate the moisture content. There is no need to frequently take out the container for weighing to see whether the quality is dried to a constant level, and there is no need for the staff to wait here for a long time. Under the condition of constant weight, the staff will be notified to come for weighing, which is convenient for the staff to arrange work reasonably and improve work efficiency. Secondly, samples with a short time interval during the process can be placed on the same layer, and samples with a long time interval can be placed on different layers, so that sampling can be carried out at any time during the process, which is convenient for the test. There is no need to prepare all samples in advance, and the aggregate samples that need to be tested temporarily can be tested at any time.

[0027] As a preferred embodiment 2, a PLC controller is provided in the control box 5, and the weighing sensor 3 is connected to the display screen 4 and the voice announcer 6 through the PLC controller. It is convenient to realize display and notification, and the evaporation of water is monitored by the weighing sensor 3. When the output value does not change, the staff is notified to weigh.

[0028] As a preferred embodiment 3, when there are many samples in the oven 1, it is inevitable that the output value will fluctuate. Therefore, as long as the fluctuation is within a certain error range, it can be regarded as a constant value output.

[0029] As a preferred embodiment 4, the voice announcer 6 is detachably arranged on the outside of the control box 5. This facilitates installation and disassembly and reduces the number of holes punched on the surface of the oven 1.

[0030] As a preferred embodiment 5, each of the tray mechanisms 2 includes a pair of relatively arranged support plates 201, and the support plates 201 are horizontally arranged on both sides of the oven 1 respectively. Each support plate 201 is elastically fixed with an L-shaped mounting block 203 through a plurality of elastic support bases 202 to ensure elastic support and facilitate sensor weighing. The L-shaped mounting blocks 203 on both sides are relatively arranged at right angles facing outward, and the L-shaped mounting blocks 203 on both sides cooperate to form a slide groove 204, and a grid tray 205 is detachably slidably fitted in the slide groove 204, which facilitates the installation and disassembly of the grid tray 205, while keeping the grid tray 205 stable after preventing the sample.

[0031] As a preferred embodiment 6, one right angle side of the L-shaped mounting block 203 is vertically arranged parallel to the inner wall of the oven 1, and the other right angle side of the L-shaped mounting block 203 is horizontally arranged pointing into the oven 1, so as to facilitate the sliding installation and receiving of the grid tray 205.

[0032] As a preferred embodiment 7, the elastic support bases 202 are evenly spaced along the sliding direction, the elastic support bases 202 are all arranged vertically, and the bottom fixed end of the elastic support base 202 is fixedly matched with the support plate 201, and the top elastic support end of the elastic support base 202 is fixedly matched with the L-shaped mounting block 203. The stability of the elastic support is ensured.

[0033] As a preferred embodiment 8, when the grid tray 205 slides into the slide groove 204, the grid tray 205 is received in the L-shaped mounting block 203, the weighing sensor 3 is arranged in the middle of the support plate 201, and the bottom of the L-shaped mounting block 203 forms an inductive match with the sensing end of the weighing sensor 3. It is ensured that the weighing sensor 3 and the L-shaped mounting block 203 receiving the grid tray 205 form a weighing match.

[0034] As a preferred embodiment 9, the voice announcer 6 has multiple announcement contents corresponding to the corresponding weighing sensors 3, such as "x-layer tray mechanism has been dried", where x corresponds to the number of layers of the tray mechanism.

[0035] As a preferred embodiment 10, the application method of the device comprises the following steps:

[0036] S1, ensure the installation of the grid tray 205 and preheat the oven 1;

[0037] S2, gradually put the aggregate sample into the clean container and weigh it to obtain the initial weight m0, and place the clean container on the grid tray 205 in sequence;

[0038] S3. When placing, samples with short time intervals should be placed on the same layer, samples with long time intervals should be placed on different layers, and one layer should be reserved for temporary testing;

[0039] S4, the weighing sensor 3 respectively displays the weight on the corresponding layer grid tray 205 through the display screen 4 in sequence. When the weighing sensor 3 detects that the value is within the error range and can be regarded as a constant value, the weighing sensor 3 links the voice announcer 6 through the controller in the control box 5 to play the corresponding voice to inform the staff that the drying is completed. The staff confirms whether the value can be regarded as a constant value through the display screen. If the broadcast is true, the weight m1 after drying can be weighed. If the error is too large, continue drying for a period of time before weighing;

[0040] S5. Calculate the moisture content of the dried sample using the formula (m0-m1) / m0*100%.

[0041] The working principle of this utility model:

[0042] The utility model provides an aggregate moisture content detection and drying device for commercial concrete preparation. In the aggregate moisture content detection test before commercial concrete preparation, a plurality of clean containers filled with aggregates can be placed on each tray mechanism 2 at the same time. Then, the corresponding weighing sensor 3 is used to monitor each tray mechanism 2, and the corresponding weighing sensor 3 is used to monitor each tray mechanism 2, and the corresponding weighing sensor 3 is used to monitor each tray mechanism 2 in sequence on the display screen 4 through the control box 5. As the water evaporates, the weight on each tray mechanism 2 gradually decreases. When the water is completely discharged, the weight on the tray mechanism 2 of this layer will tend to be stable and will not change. At this time, the value transmitted by the weighing sensor 3 is a stable value that can be regarded as within the error range. The weighing sensor 3 is controlled by the control box 5. The controller is linked to the voice announcer 6 to start, notifying the staff that the materials on the tray mechanism 2 of the corresponding layer have been dried and can be taken out for weighing to calculate the moisture content. There is no need to frequently take out the container for weighing to see whether the quality is dried to a constant level, and there is no need for the staff to wait here for a long time. Under the condition of constant weight, the staff will be notified to come for weighing, which is convenient for the staff to arrange work reasonably and improve work efficiency. Secondly, samples with a short time interval during the process can be placed on the same layer, and samples with a long time interval can be placed on different layers, so that sampling can be carried out at any time during the process, which is convenient for testing. There is no need to prepare all samples in advance, and aggregate samples that need to be tested temporarily can also be tested at any time.

Claims

1. An aggregate moisture content detection and drying device for preparing commercial concrete, comprising an oven (1), characterized in that: The oven (1) is provided with a plurality of layers of slidable tray mechanisms (2), the tray mechanisms (2) being arranged at equal intervals in the vertical direction, a corresponding weighing sensor (3) being provided below each tray mechanism (2), the sensing end of the weighing sensor (3) forming a sensing match with the corresponding tray mechanism (2), a display screen (4), a control box (5) and a voice announcer (6) being provided on one side of the oven (1), the weighing sensors (3) forming a display match with the display screen (4) through the control box (5), and the weighing sensors (3) forming a linkage match with the voice announcer (6) through the control box (5).

2. The aggregate moisture content detection and drying device for commercial concrete preparation according to claim 1 is characterized in that: The control box (5) is provided with a PLC controller, and the weighing sensor (3) is connected to the display screen (4) and the voice announcer (6) via the PLC controller.

3. The aggregate moisture content detection and drying device for commercial concrete preparation according to claim 2 is characterized in that: The voice announcer (6) is detachably arranged on the outside of the control box (5).

4. The aggregate moisture content detection and drying device for commercial concrete preparation according to any one of claims 1 to 3, characterized in that: Each of the tray mechanisms (2) comprises a pair of support plates (201) arranged opposite to each other. The support plates (201) are arranged horizontally on two sides of the oven (1), respectively. An L-shaped mounting block (203) is elastically fixedly fitted on each support plate (201) via a plurality of elastic support bases (202). The L-shaped mounting blocks (203) on both sides are arranged opposite to each other at right angles and facing outwards. The L-shaped mounting blocks (203) on both sides cooperate to form a slide groove (204), and a grid tray (205) is detachably slidably fitted in the slide groove (204).

5. The aggregate moisture content detection and drying device for commercial concrete preparation according to claim 4 is characterized in that: One right-angled side of the L-shaped mounting block (203) is arranged vertically and parallel to the inner wall of the oven (1), and the other right-angled side of the L-shaped mounting block (203) is arranged horizontally and points into the oven (1).

6. The aggregate moisture content detection and drying device for commercial concrete preparation according to claim 5 is characterized in that: The elastic support bases (202) are distributed at equal intervals along the sliding direction, the elastic support bases (202) are all arranged vertically, and the bottom fixed end of the elastic support base (202) is fixedly matched with the support plate (201), and the top elastic support end of the elastic support base (202) is fixedly matched with the L-shaped mounting block (203).

7. The aggregate moisture content detection and drying device for commercial concrete preparation according to claim 6 is characterized in that: When the grid tray (205) slides into the slide groove (204), the grid tray (205) is received in the L-shaped mounting block (203), the weighing sensor (3) is arranged in the middle position of the support plate (201), and the bottom of the L-shaped mounting block (203) forms an inductive match with the inductive end of the weighing sensor (3).

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