Uniform weighing valuing type division system based on weight reduction method and use method thereof

Abstract

A uniform weighing valuing type division system based on a weight reduction method comprises a shell, a feeding structure, a conveying structure, a weighing structure, a division structure, a sampling structure and a control module. The weighing structure is used for weighing the to-be-sampled material positioned on the feeding structure and the conveying structure; the control module drives a switching structure of the division structure to operate to switch the division discharge port according to real-time weight information fed back by the weighing structure and sampling weight input through the control module; a to-be-sampled material enters the shell from the feeding structure and then falls into the conveying structure, the conveying structure conveys the to-be-sampled material to the division feeding port, and the switching structure is driven by the control module to switch opening and closing of the sampling discharging port and the rejected sample discharging port. The uniform weighing valuing type division system based on the weight reduction method and the using method thereof are efficient, accurate and easy to operate, the efficiency and accuracy of the sampling process are improved, and the representativeness of samples is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of sample reduction and preparation, and in particular relates to a uniform weighing value-taking type sample reduction system based on a weight loss method and a use method thereof. Background Art

[0002] A reduction system is a device or method used to reduce the sample size while maintaining sample representativeness. In many industrial fields, such as mining, chemical, and food processing, quality inspection and analysis of raw materials or products are usually required. Since the original sample size is often large, it is neither economical nor practical to conduct a comprehensive analysis directly. Therefore, it is necessary to obtain a small number of representative samples for subsequent testing through a reduction method. It is widely used in pretreatment of ore samples before analysis; quality control of chemical raw materials; quality assessment of agricultural products such as grains and seeds; quality inspection of raw materials and finished drugs; and detection of environmental samples such as soil and water samples.

[0003] Traditional reduction methods often rely on the physical division of mechanical devices, such as controlling the sampling volume by the degree of rotation of the motor. This method is difficult to ensure the accuracy and consistency of each sampling, especially when dealing with materials with uneven particle sizes. It is impossible to ensure uniform sampling from different parts of the material, which may result in the final sample not fully representing the characteristics of the whole material. Existing reduction systems often do not integrate accurate weighing functions, which makes it difficult to ensure the accuracy and consistency of each sampling during the reduction process, especially when dealing with materials with uneven particle sizes. This lack of accurate weighing is more obvious. If the sampling method during the reduction process is improper, the final sample may not accurately reflect the overall characteristics of the original sample, thereby affecting the accuracy of the analysis results. Traditional reduction methods usually adopt batch processing methods. For large-scale sample processing, the entire process is time-consuming and costly. Some reduction systems have complex structures, high maintenance and maintenance costs, and relatively high technical requirements for operators. Summary of the invention

[0004] The purpose of the present invention is to provide a uniform weighing value-taking reduction system based on the weight loss method and its use method, so as to solve the technical problem of adjusting the reduction outlet in real time by monitoring the weight of the material entering the reduction state, and effectively improve the accuracy and representativeness of the sampling results.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the uniform weighing value-taking type reduction system based on weight loss method and its use method of the present invention is as follows:

[0006] A uniform weighing value-taking type reduction system based on weight loss method, comprising a shell, a feeding structure connected to a feeding port on the surface of the shell, a transmission structure connected to a discharge port of the feeding structure in the shell, a weighing structure arranged below the transmission structure for weighing the material to be sampled, a reduction structure connected to the discharge end of the transmission structure, a sampling structure for collecting samples discharged from the reduction structure, and a control module;

[0007] The contraction structure comprises a contraction shell, a contraction feed port provided on the surface of the contraction shell for the material to be sampled to enter the contraction structure, a sampling outlet and a discarded sample outlet provided on the surface of the contraction shell for the material to be sampled to be discharged from the contraction structure, and a switching structure for switching the material to be sampled between the sampling outlet and the discarded sample outlet for discharge;

[0008] The weighing structure weighs the material to be sampled located at the feeding structure and the transmission structure;

[0009] The control module drives the switching structure to operate according to the real-time weight information fed back by the weighing structure and the sampling weight input by the control module;

[0010] The material to be sampled enters the shell from the feeding structure and then falls into the transmission structure. The transmission structure transmits the material to be sampled to the reduction feed port. The switching structure switches the opening and closing of the sampling outlet and the discarded sample outlet under the drive of the control module.

[0011] As a further improvement of the present invention, the switching structure completes the sampling weight through several switches, that is, the material to be sampled is divided into several portions, and each portion is discharged from the sampling outlet and the discarded sample outlet respectively.

[0012] As a further improvement of the present invention, the interval between each time the switching structure opens the sampling outlet and each time the switching structure opens the discarded sample outlet is consistent.

[0013] As a further improvement of the present invention, the switching structure includes a switching plate and a switching drive device, and the switching drive device drives the switching plate to rotate under the command of the control module, and each rotation realizes the opening and closing switching of the sampling outlet and the discarded sample outlet in the reduction shell.

[0014] As a further improvement of the present invention, the total weight of the material to be sampled obtained by the weighing structure is W tatal , input the sampling weight as W sample The control module has a single sampling weight input function. When this function is turned off, the switching structure opens the sampling outlet for a certain number of times. The single sampling weight is

[0015] Open the single sampling weight input function, input the single sampling weight W, and the switching structure opens the sampling outlet for the number of times

[0016] As a further improvement of the present invention, the single sampling weight is greater than the minimum weighing accuracy of the weighing structure.

[0017] As a further improvement of the present invention, the sampling structure is provided with a sample retaining groove and a sample discarding groove corresponding to the sampling outlet and the sample discarding outlet.

[0018] A method for using a uniform weighing value-taking type reduction system based on a weight loss method comprises the following steps:

[0019] S1. Input sampling weight W in the control module sample , placing the material to be sampled into the feeding structure, the material to be sampled falls from the feeding structure into the transmission structure, and begins to be transported to the reduction structure;

[0020] S2. The weighing structure weighs the materials to be divided on the feeding structure and the transmission structure to obtain the total weight W of the materials to be sampled. total And the single sampling weight W, the number of times the switching structure opens the sampling outlet is calculated

[0021] S3, the material to be sampled starts to continuously enter the reduction feed port from the transmission structure, and the weighing structure feeds back the weight of the material entering the reduction structure in real time. When the weight entering the sampling outlet reaches the single sampling weight W, the switching structure switches the sampling outlet to the discarded sample outlet;

[0022] S4, when the weight of the single sample entering the discard outlet reaches The switching structure switches the discarded sample outlet to the sampling outlet;

[0023] S5, repeating steps S3-S4 until the sampling outlet is opened N times, the accumulated discharge weight reaches the sampling weight, and the switching structure closes the sampling outlet;

[0024] S6. Take out the sample from the sample retention tank and take out the discarded sample from the discarded sample tank.

[0025] As a further improvement of the present invention, the single sampling weight input function in the control module is turned off, and the single sampling weight in S2 is

[0026] As a further improvement of the present invention, the control module enables a single sampling weight input function, and the single sampling weight W in S2 is input by the control module.

[0027] Beneficial effects:

[0028] The system uses real-time weighing technology to accurately control the weight of each sample, ensuring that all sampled batches have the same weight, thereby reducing the deviation between samples. Through accurate weighing, it can be ensured that the small batch samples taken from a large batch of materials can represent the properties of the entire batch, thereby improving the reliability and repeatability of the sampling results.

[0029] This system adopts automatic control, and realizes the automation of the whole process from feeding to reduction by combining the weighing structure with the control module, which greatly improves the sampling efficiency. Since the system can automatically calculate and control the key parameters in the sampling process, it reduces the need for manual intervention and reduces the possibility of human error.

[0030] The system can monitor the material weight in real time and automatically adjust the sampling strategy according to the actual weight to ensure that the weight of each sample is consistent, even in the face of changes in material density, it can maintain a good sampling effect. The system can manually set the single sampling weight as needed. This flexibility enables the system to maintain a high degree of effectiveness when handling materials of different types or characteristics.

[0031] The control module has a friendly user interface, allowing operators to easily input parameters such as sampling weight, simplifying the operation process. Automatic calculation: The system can automatically calculate the number of times the sampling outlet is opened and the single sampling weight, reducing the workload of operators.

[0032] By accurately controlling the sampling weight, the system can reduce unnecessary sample loss, which is especially important for precious or expensive materials. Accurately controlling the sampling weight can also reduce the amount of discarded samples, thereby reducing material waste.

[0033] Automated operation reduces the chance of operators directly contacting materials and reduces possible occupational health risks. By accurately controlling the sampling weight, this system can minimize resource waste and contribute to environmental protection.

[0034] In summary, the uniform weighing value-taking reduction system based on the weight loss method and its use method proposed in the present invention realize efficient sample sampling and reduction through precise weighing technology, and have higher accuracy, efficiency and reliability than traditional methods. In addition, the system also has the advantages of simple operation, easy maintenance, environmental protection and energy saving, and is suitable for various application scenarios requiring precise sampling and reduction, especially in the mining, chemical, food processing and other industries, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1It is a structural schematic diagram of a uniform weighing value-taking type reduction system based on a weight loss method of the present invention;

[0036] Figure 2 It is a schematic diagram of the structure inside the shell of the present invention;

[0037] Figure 3 It is a schematic diagram of the feeding structure and the transmission structure;

[0038] Figure 4 It is a schematic diagram of the reduced structure;

[0039] Explanation of the marks in the figure: 100, shell; 110, feed port; 200, feed structure; 210, feed hopper; 220, feed adjustment structure; 300, transmission structure; 310, transmission shell; 320, transmission belt; 330, discharge end; 400, weighing structure; 500, reduction structure; 510, reduction shell; 520, reduction feed port; 530, sampling discharge port; 540, discarded sample discharge port; 551, switching plate; 552, switching drive device; 600, sampling structure; 610, sample retention trough; 620, discarded sample trough. DETAILED DESCRIPTION

[0040] In order to better understand the purpose, structure and function of the present invention, the uniform weighing value reduction system based on weight loss method and its use method are further described in detail below in conjunction with the accompanying drawings.

[0041] Implementation example:

[0042] like Figure 1-2 As shown, a uniform weighing value-taking type reduction system based on weight loss method, the upper end surface of the housing 100 is provided with a feed port 110, the feed structure 200 conveys the material to be sampled to the transmission structure 300 through the feed port 110, the weighing structure 400 weighs the material to be sampled entering the feed structure 200 and the transmission structure 300 as a whole, and as the material to be sampled slowly enters the reduction structure 500 along the transmission structure 300, the weighing structure 400 records the reduced weight in real time. Under the distribution of the switching structure, the reduction structure 500 discharges the material to be sampled into the sample retention slot 610 and the sample discarding slot 620 of the sampling structure 600 respectively.

[0043] like Figure 3As shown, the feed hopper 210 of the feed structure 200 is in the shape of a funnel with a large top and a small bottom. The upper end is open for the overall placement of the material to be sampled, and the lower end is open for communication with the transmission structure 300. A feed adjustment structure 220 is provided on the side, and an adjustment plate is provided on the side of the feed hopper. The adjustment plate is inserted into the feed hopper along the side of the feed hopper. As the insertion degree of the adjustment plate increases, the insertion end of the adjustment plate continuously reduces the lower end opening degree to adjust the falling speed of the material to be sampled in the feed hopper. A row of adjustment holes is provided on the adjustment plate, and the bolts are screwed into the screw holes on the side of the feed funnel through the adjustment buckles to adjust the insertion degree of the adjustment plate.

[0044] The transmission structure 300 is provided with a transmission belt 320 inside the transmission shell 310, and the material to be sampled falling from the feed hopper 210 is transported to the discharge end 330 of the transmission structure 300 through the transmission belt 320, and falls into the reduction feed port 520 from the discharge end 330. The closed transmission shell 310 prevents the dust stirred up by the material to be sampled from spilling out during the falling process, and the smooth transmission belt 320 enables the weighing structure 400 to more accurately feedback the weight loss information, making the sampling process more representative.

[0045] like Figure 4 As shown, the upper end surface of the contraction shell 510 of the contraction structure 500 is provided with a contraction feed port 520, and the contraction feed port 520 is connected to the discharge end 330 of the transmission structure 300. The lower end of the contraction shell 510 is symmetrically provided with a sampling discharge port 530 and a discarded sample discharge port 540. The contraction shell 510 is an inverted "Y"-shaped channel, and a switching structure is provided at the three-way joint. The switching plate 551 is arranged in the contraction shell 510, and the switching drive device 552 is a motor structure extending the rotating shaft inward from the outside of the contraction shell 510 to pass through the switching plate 551, driving the switching plate 551 to rotate forward and reverse in the contraction shell 510. The switching plate 551 closes the discarded sample discharge port 530 by default, and the switching plate 551 realizes the switching of the sampling discharge port 530 and the discarded sample discharge port 540 every rotation, ensuring that only one discharge port is unobstructed. The extended end of the rotating shaft passes through the contracted housing 510 and comes out from the other side. A limiting structure (not shown in the figure) is provided at the extended end to limit the rotation degree of the switching plate 551 to avoid excessive rotation.

[0046] A sampling structure 600 is provided below the contraction structure 500. The sampling structure 600 is provided with a sample retaining groove 610 and a sample discarding groove 620 corresponding to the sampling outlet 530 and the sample discarding outlet 540, thereby achieving the acquisition of sampling samples and the placement of excess materials.

[0047] In this embodiment, the control module is a visual touch screen structure (not shown in the figure), which is connected to the weighing structure 400, and monitors the weight of the material to be scaled in real time according to the feedback information of the weighing structure 400, and monitors the total weight reduction of the material to be sampled when entering the scaled structure 500 in real time, and controls the rotation switching of the switching structure in real time according to the input sampling weight. The total weight of the material to be sampled obtained by the weighing structure is W tatal , input sampling weight as W sample The control module has the function of inputting the single sampling weight. When this function is not turned on, the switching structure opens the sampling outlet for the number of times. The single sampling weight is Open the single sampling weight input function, enter the single sampling weight W, and the switching structure will open the sampling outlet for the number of times. The control module adjusts the transmission speed of the transmission belt according to the input single sampling weight. The single sampling weight must be greater than the minimum precision of the weighing structure. The closer it is to the weighing precision, the more representative the sampling is, but the longer the sampling process is. The larger the single sampling weight is, the faster the sampling process is, but the less representative the sampling is. To ensure the representativeness of the sampling, the opening time of each sampling outlet 530 and the interval time (i.e., the opening time of the discarded sample outlet 540) are consistent.

[0048] A method for using a uniform weighing value-taking type reduction system based on weight loss method, first inputting the sampling weight W in the control module sample , the material to be sampled is placed into the feeding structure, and the material to be sampled falls from the feeding structure into the transmission structure and begins to be transported to the reduction structure.

[0049] Then, the weighing structure weighs the material to be divided on the feeding structure and the transmission structure to obtain the total weight W of the material to be sampled. total And the single sampling weight W, when the single sampling weight input function in the control module is turned off, the sampling weight in S2 When the single sampling weight input function is turned on, the single sampling weight W in S2 is input by the control module. The number of times the switching structure opens the sampling outlet is calculated.

[0050]

[0051] The material to be sampled starts to enter the reduction feed port continuously from the transmission structure, and the weighing structure feeds back the weight of the material entering the reduction structure in real time. When the weight entering the sampling outlet reaches the single sampling weight W, the switching structure switches the sampling outlet to the discarded sample outlet; when the weight entering the discarded sample outlet reaches The switching structure switches the discarded sample outlet to the sampling outlet; the sampling outlet is repeatedly switched to open N times, and the accumulated discharge weight reaches the sampling weight, and the switching structure closes the sampling outlet, and the sampling is completed. Take out the sample from the sample retention tank, and take out the discarded sample from the discarded sample tank.

[0052] The total weight of the material to be sampled is W total The sampling weight is 10000g. sample Take 100g as an example, if the single sampling weight input function is not enabled, the sampling times N is 100 times, and the single sampling weight is 1g. If the single sampling weight input function is enabled, and the single sampling weight is 10g, the sampling times N is 10 times, that is, the switching structure opens the sampling outlet 10 times, and 10g of sample is collected each time.

[0053] The method of the present invention can effectively improve the accuracy and representativeness of the sampling results by accurately controlling the sampling weight and the reduction ratio, while reducing sample deviation and waste, and is suitable for application in various fields requiring accurate sampling and reduction.

[0054] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A uniform weighing value reduction system based on weight loss method, characterized in that: It includes a shell, a feeding structure connected to a feeding port on the surface of the shell, a transmission structure connected to a discharge port of the feeding structure in the shell, a weighing structure arranged below the transmission structure to weigh the material to be sampled, a contraction structure connected to a discharge end of the transmission structure, a sampling structure for collecting samples discharged from the contraction structure, and a control module; The contraction structure comprises a contraction shell, a contraction feed port provided on the surface of the contraction shell for the material to be sampled to enter the contraction structure, a sampling outlet and a discarded sample outlet provided on the surface of the contraction shell for the material to be sampled to be discharged from the contraction structure, and a switching structure for switching the material to be sampled between the sampling outlet and the discarded sample outlet for discharge; The weighing structure weighs the material to be sampled located at the feeding structure and the transmission structure; The control module drives the switching structure to operate according to the real-time weight information fed back by the weighing structure and the sampling weight input by the control module; The material to be sampled enters the shell from the feeding structure and then falls into the transmission structure. The transmission structure transmits the material to be sampled to the reduction feed port. The switching structure switches the opening and closing of the sampling outlet and the discarded sample outlet under the drive of the control module.

2. The uniform weighing value-taking type reduction system based on weight loss method according to claim 1 is characterized in that: The switching structure completes the sampling weight through several switchings, that is, the material to be sampled is divided into several portions, and each portion is discharged from the sampling outlet and the discarded sample outlet respectively.

3. The uniform weighing value-taking type reduction system based on weight loss method according to claim 2 is characterized in that: The switching structure has the same interval between each time it opens the sampling outlet and each time it opens the discarded sample outlet.

4. The uniform weighing value-taking type reduction system based on weight loss method according to claim 1 is characterized in that: The switching structure includes a switching plate and a switching drive device. The switching drive device drives the switching plate to rotate under the command of the control module. Each rotation realizes the opening and closing switching of the sampling outlet and the discarding outlet in the shrink shell.

5. The uniform weighing value-taking type reduction system based on weight loss method according to claim 1 or 2 is characterized in that: The total weight of the material to be sampled obtained by the weighing structure is W tatal , input the sampling weight as W sample The control module has a single sampling weight input function. When this function is turned off, the switching structure opens the sampling outlet for a certain number of times. The single sampling weight is Open the single sampling weight input function, input the single sampling weight W, and the switching structure opens the sampling outlet for the number of times 6. The uniform weighing value-taking type reduction system based on weight loss method according to claim 5 is characterized in that: The single sampling weight is greater than the minimum weighing accuracy of the weighing structure.

7. The uniform weighing value-taking type reduction system based on weight loss method according to claim 1 is characterized in that: The sampling structure is provided with a sample retaining groove and a sample discarding groove corresponding to the sampling outlet and the sample discarding outlet.

8. A method for using a uniform weighing value-taking reduction system based on a weight loss method, characterized in that: The following steps are involved: S1. Input sampling weight W in the control module sample , placing the material to be sampled into the feeding structure, the material to be sampled falls from the feeding structure into the transmission structure, and begins to be transported to the reduction structure; S2. The weighing structure weighs the materials to be divided on the feeding structure and the transmission structure to obtain the total weight W of the materials to be sampled. total And the single sampling weight W, the number of times the switching structure opens the sampling outlet is calculated S3, the material to be sampled starts to continuously enter the reduction feed port from the transmission structure, and the weighing structure feeds back the weight of the material entering the reduction structure in real time. When the weight entering the sampling outlet reaches the single sampling weight W, the switching structure switches the sampling outlet to the discarded sample outlet; S4, when the weight of the single sample entering the discard outlet reaches The switching structure switches the discarded sample outlet to the sampling outlet; S5, repeating steps S3-S4 until the sampling outlet is opened N times, the accumulated discharge weight reaches the sampling weight, and the switching structure closes the sampling outlet; S6. Take out the sample from the sample retention tank and take out the discarded sample from the discarded sample tank.

9. The method for using the uniform weighing value-taking type reduction system based on the weight loss method according to claim 8 is characterized in that: The single sampling weight input function in the control module is closed, and the single sampling weight in S2 10. The method for using the uniform weighing value-taking type reduction system based on weight loss method according to claim 8, characterized in that: The control module starts the single sampling weight input function, and the single sampling weight W in S2 is input by the control module.

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