WO2014000529A1

WO2014000529A1 - Automatic air drying balancing device used for preparing samples

Info

Publication number: WO2014000529A1
Application number: PCT/CN2013/075797
Authority: WO
Inventors: 朱先德; 王芹
Original assignee: 湖南三德科技股份有限公司
Priority date: 2012-06-27
Filing date: 2013-05-17
Publication date: 2014-01-03
Also published as: CN102937544A

Abstract

An automatic air drying balancing device used for preparing samples comprises a control assembly (14), a sample-moving assembly (11) and a heating drying box assembly and an air balancing box assembly which are arranged in sequence. The heating drying box assembly comprises a drying box (1), a drying box sample plate (5), and a sample-weighing mechanism (4) which is used for weighing the samples for the sample plate (10) on the drying box sample plate (5); and the control assembly (14) determines whether the drying process of the samples is finished or not according to the weighed results, and sends the samples to the air balancing box assembly via the sample-moving assembly (11) when the drying process of the samples is finished. The air balancing box assembly comprises an air balancing box (9) and an air balancing box sample plate (8); the control assembly (14) determines whether the balancing process of the samples is finished or not, and sends warnings to prompt a user to take the samples or send out the samples automatically. The device has the advantage of high automation degree, improved drying and balancing efficiency, reduced labor intensity and the like.

Description

Automatic air drying balance device for sample preparation

[Technical Field]

The invention mainly relates to the field of sample preparation equipment for coal sample detection, and particularly relates to an automatic air drying balance device for sample preparation.

【Background technique】

For coal quality analysis, it is actually a process of sampling analysis. Coal is a kind of uneven material (particle size, distribution of quality characteristics, etc.). The sampled mothers are generally large (several tens of tons to tens of thousands of tons), and the maximum mass can be represented to represent the entire maternal quality and characteristics. The process of representative samples is called "sampling", and there are many methods such as mechanical sampling, manual sampling, and semi-mechanical sampling. There are mandatory standards in each country and sampling must be carried out in accordance with the standards.

After the sample is taken according to the standard, the next process is to prepare the sample. The criterion of the sample preparation process is to gradually reduce the particle size of the sample without reducing the representativeness of the sample, and the quality is gradually reduced until the laboratory test is performed. Particle size and mass (weight) requirements. The sample preparation process generally has processes such as air drying, crushing, shrinking, and milling. Air drying (can also be heated and dried, but the temperature should be less than 50 ° C) The process is to reduce the external moisture of the sample, in order to facilitate the normal process of crushing and shrinking. Fragmentation during sample preparation is the process of reducing the particle size of the sample. The shrinking process is a process of representatively reducing the sample. The reduced part of the sample must be representative of the coal quality characteristics of the reduced sample. The shrinking process is also the process of reducing the sample volume during the sample preparation process. The standard stipulates that coal sample loss should not be allowed. Because the sample loss in the non-shrinking process (such as pulverized coal loss, vermiculite is selected, etc.) will change the coal quality characteristics of the sample, the selective (not necessarily artificial) loss of the sample is absolutely not allowed in the sample preparation process. .

The sample should be heat-dried and air-balanced before or during bottling. At present, the whole manual operation mode is generally adopted: the transfer of the sample requires manual intervention, and the drying and balancing time requires manual memory. If multiple samples are processed at the same time, there are problems such as easy mixing, poor drying and balancing time, and large labor.

[Summary of the Invention]

The technical problem to be solved by the present invention is that, in view of the technical problems existing in the prior art, the present invention provides an automatic air drying balance device for sample preparation which has a high degree of automation, can improve drying and balance efficiency, and reduces labor intensity.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

An automatic air drying balance device for sample preparation, comprising:

a control assembly, a sample shifting assembly, and a heated drying oven assembly, an air balance box assembly;

The heating drying oven assembly comprises a drying box, a drying box sample tray and a drying box sample weighing mechanism for weighing the sample tray on the drying box sample tray during heating, the control component being judged according to the weighing result Whether the sample is dry, And after the sample is dried, the sample is sent to the air balance box assembly through the sample transfer component;

The air balance box assembly includes an air balance box and an air balance box sample, and the control unit determines whether the sample is completed and issues a warning to prompt the user to sample or automatically send the sample.

As a further improvement of the invention:

The drying box sample tray is provided with a plurality of first lofting portions for placing the sample tray, and the first lofting portion is provided with a first position detecting member for detecting whether a sample tray is placed at the corresponding position; The air balance box sample tray is provided with a plurality of second lofting portions, and the second lofting portion is provided with a second position detecting member for detecting whether a sample disc is placed at the corresponding position.

The drying box sample tray is mounted on the drying box sample tray lifting and rotating mechanism and is driven by the drying box sample lifting and rotating mechanism to perform rotation and lifting movement. The weighing rod of the drying box sample weighing mechanism is located in the drying box sample tray. Rotate below any position in the stroke.

A sample tray slide is disposed between the drying box and the air balance box, and the sample tray slide is used to connect the dry box sample and the air balance box sample to complete automatic sample transfer.

The sample transfer assembly includes a first sample transfer mechanism and a second sample transfer mechanism, and the sample discharge portions on the air balance box sample plate are arranged in two or more rows, and the first sample transfer mechanism is used to take the sample tray from the dry box The sample tray is moved to the air balance box sample; after the first discharge sample is full, the second sample transfer mechanism is used to push all the sample trays on the first row back into a row.

The sample transfer assembly includes a first sample transfer mechanism and a third sample transfer mechanism. The sample discharge portions on the air balance box sample plate are arranged in two or more rows, and the first sample transfer mechanism is used to take the sample tray from the dry box. The sample plate is moved to the air balance box sample; after the first discharge sample is full, the third sample transfer mechanism shifts the air balance box sample plate forward by a certain distance.

The air balance box assembly further includes an air balance box sample weighing mechanism that weighs the sample during the balancing process, and the control assembly determines whether the sample is completed based on the weight of the sample.

The air balance tank assembly also includes a timing component that counts the sample equilibration time during the balancing process, the control assembly determining whether the sample is complete based on the time the sample is in the air balance tank.

Compared with the prior art, the invention has the advantages that: the automatic air drying balance device for sample preparation of the invention can monitor and control the drying and balancing process in real time by real-time weighing, thereby improving the degree of automation and improving Drying and balancing efficiency greatly reduces the labor intensity of the operator and improves the reliability of the operation process.

[Description of the Drawings]

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the principle of construction of a first embodiment of the present invention.

2 is a schematic view showing the principle of cooperation between the drying box sample tray and the air balance box sample tray in the first embodiment of the present invention.

Fig. 3 is a schematic view showing the principle of construction of a second embodiment of the present invention.

4 is a schematic view showing the principle of cooperation between the drying box sample tray and the air balance box sample tray in Embodiment 2 of the present invention. Figure 5 is a schematic view showing the structure of a third embodiment of the present invention.

Fig. 6 is a schematic view showing the principle of cooperation between the drying box sample tray and the air balance box sample tray in the third embodiment of the present invention.

illustration:

1. Drying box; 2. Temperature measuring device; 3. Drying box sample lifting and rotating mechanism; 4. Drying box sample weighing mechanism; 5. Drying box sample plate; 6. First position detecting piece; 7. Sample plate Slide; 8, air balance box sample; 9, air balance box; 10, sample tray; 11, sample transfer components; 12, exhaust port; 13, heating sheet; 14, control components; 15, air balance box lift Rotating mechanism; 16, air balance box sample weighing mechanism; 17, second position detecting member; 18, first moving sample mechanism; 19, second moving sample mechanism; 20, third moving sample mechanism.

【detailed description】

The invention will be further described in detail below in conjunction with the drawings and specific embodiments.

The automatic air drying balance device for sample preparation of the invention comprises: a control component 14, a sample shifting component 11 and a heating drying oven component and an air balance box component arranged in sequence;

The heating drying oven assembly includes a drying box 1, a drying box sample tray 5, and a drying box sample weighing mechanism 4 for weighing the sample tray 10 on the drying box sample tray 5 during heating, and the control assembly 14 is called according to the passage. The quantity result determines whether the sample is dried or not, and after the sample is dried, the sample is sent to the air balance box assembly through the sample moving component 11;

The air balance box assembly includes an air balance box 9 and an air balance box sample. The control unit 14 determines whether the sample is completed and issues a warning to prompt the user to sample or automatically send the sample.

The air balance tank assembly may further include an air balance tank sample weighing mechanism for weighing the sample during the balancing process, and the control unit 14 determines whether the sample is completed based on the weight of the sample.

Alternatively, the air balance tank assembly includes a timing component that counts the sample equilibration time during the balancing process, and the control assembly 14 determines whether the sample is completed based on the time the sample is in the air balance tank 9.

In this way, the entire drying and air balance process of the sample processing is automatically completed, which not only greatly improves the drying and air balance efficiency, reduces the labor intensity, but also effectively avoids problems such as inaccurate recording and inaccurate operation due to manual operation, and greatly improves the problem. The accuracy of sample processing.

Embodiment 1 : As shown in FIG. 1 and FIG. 2 , the automatic air drying balance device for sample preparation of the present invention comprises a control assembly 14 , a sample shifting assembly 11 , and a heating drying box assembly and an air balance box assembly arranged in sequence; The drying box assembly includes a drying box 1, a drying box sample plate 5, a drying box sample plate lifting and rotating mechanism 3, a drying box sample weighing mechanism 4, a heating piece 13 installed in the drying box 1, and a temperature measuring member 2, which are heated. The drying box 1 is heated by the heating sheet 13, and the temperature measuring unit 2 performs temperature measurement monitoring, and has a heating/heating constant temperature function, and the temperature is controllable. An air outlet 12 is provided in the drying box 1.

In the present embodiment, the drying box sample tray 5 is mounted on the drying box sample tray lifting and rotating mechanism 3, and is carried by the drying box sample tray lifting and rotating mechanism 3 for lifting movement and rotary motion. The drying box sample tray 5 is provided with a plurality of stakeout portions, and each of the stakeout portions is provided The first position detecting member 6 is for detecting whether or not the sample tray 10 is placed at the corresponding position. The sample rod of the drying box sample weighing mechanism 4 is located at any position in the rotation stroke of the drying box sample tray 5, and when the drying box sample tray 5 is lowered, the corresponding position of a certain sampling portion on the drying box sample tray 5 is The sample tray 10 is contacted with the sample rod to complete the weighing.

The air balance box assembly comprises an air balance box 9, an air balance box sample plate 8, an air balance box lifting and rotating mechanism 15, an air balance box sample weighing mechanism 16, the air balance box 9 is in a natural ventilation state, and the air balance box sample plate 8 It is mounted on the air balance box lifting and rotating mechanism 15, and is carried by the air balance box lifting and rotating mechanism 15 for lifting movement and rotary motion. The air balance box sample tray 8 is provided with a plurality of stakeout portions, and each of the stakeout portions is provided with a second position detecting member 17 for detecting whether or not the sample tray 10 is placed at the corresponding position. The sample rod of the air balance box sample weighing mechanism 16 is located at any position in the rotation stroke of the air balance box sample tray 8, and when the air balance box sample tray 8 is lowered, a certain stakeout on the air balance box sample tray 8 The sample tray 10 at the corresponding position is contacted with the sample rod to complete the weighing. In use, after the sample tray 10 enters the air balance tank 9, after the second position detecting member 17 detects that the existing sample tray 10 is placed, the system automatically performs timing or rotation and weighing. When the sample quality does not exceed a certain value within a certain period of time, the control unit 14 prompts the user through the warning component (beep or indicator light) which sample tray air balance is over, can be sampled; or automatically sends the sample out.

In use, the user places the coal samples one by one through the sample tray 10 to the stakeout portion on the dry box sample tray 5; after the first position detecting member 6 detects that the existing sample tray 10 is placed, the heating sheet 13 is automatically heated. During the heating process, the sample can be weighed by the drying box sample weighing mechanism 4, and when the sample quality does not exceed a certain value within a certain period of time, the control component 14 issues a control command to the sample moving component 11, It is used to move the sample tray 10 from the dry box sample tray 5 to the air balance box sample tray 8. BP, after the sample satisfies the end condition of the heat drying, the drying oven sample tray 5 is rotated to the removal position of the sample tray 10, and the sample moving assembly 11 pushes the qualified sample tray 10 onto the air balance box sample tray 8 in the air balance tank 9. The air balance box sample tray 8 is rotated by the air balance box lifting and rotating mechanism 15, and can be weighed by the air balance box sample weighing mechanism 16. When the mass of the sample tray 10 does not exceed a certain value within a certain period of time or reaches a set equilibrium time, the air balance ends. The control unit 14 prompts the user through the warning component (beep or indicator) which sample tray 10 air balance is over, can be sampled; or automatically sends the sample out.

If the sampling tray 10 on the air balance box sample 8 is full due to the user not sampling in time, the control unit 14 will issue a control command to the sample shifting assembly 11, and the automatic balancing will not be performed after the heating and drying, when the air balance box When there is a space on the sample plate 8, the sample is moved. The sample shifting assembly 11 is for moving the sample tray 10 from the dry box sample tray 5 to the air balance box sample tray 8. It can be in the form of a flat push of the sample tray 10 shown in this embodiment, and in other embodiments it can also be used. The sample tray 10 is transferred by a structural form such as a robot grab, a belt shift, and the like, and will not be described herein.

In a preferred embodiment, the present invention further provides a sample tray slide 7 between the drying box 1 and the air balance tank 9 for connecting the drying box sample 5 and the air balance box sample 8 for automatic sample transfer.

Embodiment 2: As shown in FIG. 3 and FIG. 4, the structure of this embodiment is basically the same as that of Embodiment 2. The difference lies in: The sample assembly 11 includes a first sample transfer mechanism 18 and a second sample transfer mechanism 19, and does not include an air balance box lifting and rotating mechanism 15, and the stakeout portions on the air balance box sample plate 8 are arranged in two or more rows, the first sample The mechanism 18 moves the sample tray 10 from the dry box sample tray 5 to the air balance box sample tray 8. After the first discharge sample is full, all the sample trays 10 on the first row are moved backward by the second sample transfer mechanism 19. Push one row until the entire air balance box sample 8 is full. Similarly, the control unit 14 determines whether the sample is completed based on the weight of the sample in the air balance tank 9; or, the control unit 14 determines whether the sample is completed based on the time of the sample in the air balance tank 9.

Embodiment 3: As shown in FIG. 5 and FIG. 6, the structure of this embodiment is basically the same as that of Embodiment 2, except that the sample shifting assembly 11 includes the first sample moving mechanism 18 and the third sample moving mechanism 20 And the air balance box lifting and rotating mechanism 15 is not included, and the stakeout portions on the air balance box sample plate 8 are arranged in two or more rows, and the first sample transfer mechanism 18 moves the sample tray 10 from the dry box sample plate 5 to the air balance box sample. The disk 8, when the first discharge sample is full, the air balance box sample 8 is forwardly shifted by a certain distance by the third sample transfer mechanism 20 until the entire air balance box sample 8 is filled. Similarly, the control unit 14 determines whether the sample is completed based on the weight of the sample in the air balance tank 9; or, the control unit 14 determines whether the sample is completed based on the time of the sample in the air balance tank 9.

The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments, and all the technical solutions under the inventive concept belong to the protection scope of the present invention. It should be noted that, for those skilled in the art, several modifications and retouchings without departing from the principles of the present invention, for example, the shape of each disc is not limited to the circular shape in the above embodiment, etc. It should be considered as the scope of protection of the present invention.

Claims

Rights request

1. An automatic air drying balancing device for sample preparation, characterized by including:

A control component (14), a sample transfer component (11), and a heating drying box component and an air balance box component arranged in sequence; the heating drying box component includes a drying box (1), a drying box sample tray (5), and a drying box sample plate (5) during the heating process. The drying box sample plate weighing mechanism (4) is used to weigh the sample plate (10) on the drying box sample plate (5). The control component (14) determines whether the sample is dried based on the weighing result, and After the sample is dried, send the sample into the air balance box assembly through the sample transfer assembly (11);

The air balance box component includes an air balance box (9) and an air balance box sample tray (8). The control component (14) determines whether the sample is completed and issues a warning to prompt the user to take a sample or automatically sends the sample out.

2. The automatic air drying and balancing device for sample preparation according to claim 1, characterized in that the drying box sample tray (5) is provided with a plurality of first setting out for placing the sample tray (10) The first setting-out part is provided with a first position detection part (6) for detecting whether there is a sample tray (10) placed in the corresponding position; the air balance box sample tray (8) is provided with several The second setting-out part is provided with a second position detection part (17) for detecting whether a sample tray (10) is placed at the corresponding position.

3. The automatic air drying balancing device for sample preparation according to claim 1, characterized in that the drying box sample plate (5) is installed on the drying box sample plate lifting and rotating mechanism (3) and is controlled by the drying box. The sample plate lifting and rotating mechanism (3) drives the rotation and lifting movements. The sample weighing rod of the drying box sample plate weighing mechanism (4) is located below any position in the rotation stroke of the drying box sample plate (5).

4. The automatic air drying and balancing device for sample preparation according to any one of claims 1 to 3, characterized in that a sample tray slide is provided between the drying box (1) and the air balancing box (9). The sample tray slide (7) is used to connect the drying box sample tray (5) and the air balance box sample tray (8) to complete automatic sample transfer.

5. The automatic air drying and balancing device for sample preparation according to claim 4, characterized in that the sample transfer assembly (11) includes a first sample transfer mechanism (18) and a second sample transfer mechanism (19) , the sampling parts on the air balance box sample tray (8) are arranged in more than two rows, and the first sample transfer mechanism (18) is used to move the sample tray (10) from the drying box sample tray (5) to the air Balance box sample tray (8); when the first discharge sample part is full, the second sample transfer mechanism (19) is used to push all the sample trays (10) in the first row back one row.

6. The automatic air drying and balancing device for sample preparation according to claim 4, characterized in that the sample transfer assembly (11) includes a first sample transfer mechanism (18) and a third sample transfer mechanism (20) , the sampling parts on the air balance box sample tray (8) are arranged in more than two rows, and the first sample transfer mechanism (18) is used to move the sample tray (10) from the drying box sample tray (5) to the air Balance box sample tray (8); when the first discharge sample part is full, the third sample transfer mechanism (20) balances the air The box sample tray (8) moves forward a certain distance.

7. The automatic air drying and balancing device for sample preparation according to any one of claims 1 to 3, characterized in that the air balancing box assembly also includes air for weighing the sample during the balancing process. Balance box sample tray weighing mechanism (16), the control component (14) determines whether the sample is completed based on the sample weight.

8. The automatic air drying balancing device for sample preparation according to any one of claims 1 to 3, characterized in that the air balancing box assembly further includes a timer for timing the sample balancing time during the balancing process. component, the control component (14) determines whether the sample is completed based on the time the sample is in the air balance box (9).