Industrial silicon raw material detection system

Abstract

The utility model provides an industrial silicon raw material detection system and relates to the field of industrial silicon production. The industrial silicon raw material detection system comprises a sampling device used for taking out a sample from a raw material; the transmission device is in butt joint with the discharge hole of the sampling device; the detection device is in butt joint with the transmission device, and the detection device is used for detecting and analyzing the sample obtained by the sampling device to obtain detection data; the detection device comprises a screening mechanism and a weighing mechanism in butt joint with a plurality of discharging ends of the screening mechanism. The screening mechanism is used for dividing the samples obtained by the sampling device into a plurality of groups of samples with different particle sizes, and the weighing mechanism is used for weighing the plurality of groups of samples with different particle sizes respectively, so that the obtained detection data contains the proportion data of raw materials with different particle sizes in the samples; the device can rapidly obtain washed coal raw material granularity data with guiding significance to actual production, improves production efficiency, and is simple in structure and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of industrial silicon production, concretely is a kind of industrial silicon raw material detection system. BACKGROUND

[0002] Industrial silicon, also known as metal silicon, crystalline silicon or quasi-metallic silicon, is a product produced by smelting silicon stone and carbonaceous reducing agent as raw materials in a submerged arc furnace. The content of silicon element, the main component of industrial silicon, is usually around 98%, and in recent years, products with Si content of 99.99% are also included in the scope of metal silicon. In addition to silicon element, the remaining components are mainly impurities such as iron, aluminum, calcium, etc. Raw materials are extremely important for industrial silicon production. On the one hand, the quality of raw materials affects product quality, including grade, sintering performance, particle size distribution and other characteristics, which have a great influence on the production process of industrial silicon and the quality of the final product. On the other hand, the proportion of raw materials affects production efficiency and cost. Reasonable raw material proportioning can not only ensure the quality and performance of the final product, but also improve production efficiency and reduce cost.

[0003] At the same time, the particle size of raw materials is also an important factor affecting the production of industrial silicon. The size of raw material particle size may affect the heat conduction and reaction rate in the smelting process. If the particle size of raw materials is too large, it may cause uneven heat transfer, making the smelting process more difficult, and may also reduce the reaction rate, affecting production efficiency. In addition, the size of raw material particle size may also affect the quality and performance of the product. If the particle size of raw materials is too large, it may cause the product to be unable to react completely during smelting, thereby affecting the purity and performance of the product. In addition, too large particle size of raw materials may also cause cracks or fractures in the production process, reducing the service life of the product. Therefore, when selecting raw materials, appropriate particle size of raw materials should be determined according to production process and product demand, and the size of raw material particle size should also be strictly controlled during production to ensure the quality and performance of the product.

[0004] In existing technologies, the most traditional method for particle size detection of industrial silicon raw materials is manual sampling or mechanical sampling combined with manual laboratory testing. This method is susceptible to errors due to the operator's skill and experience, and has many drawbacks, including: large sampling errors; partial representation of the whole, failing to reflect the overall situation; inability to perform real-time online detection, resulting in significant data lag; and limited guidance for real-time production processes. Improved detection methods include laser or ultrasonic testing. For example, Chinese utility model patent (document number CN211179084U) discloses an online particle size analysis system, characterized by a sampling mechanism and an analysis mechanism. The sampling mechanism includes a sampling pipe and a sampling device. The inlet and outlet of the sampling pipe are connected to the main slag powder pipeline, and the sampling device is located inside the sampling pipe. The analysis mechanism includes a laser online particle size analyzer connected to the sampling pipe. However, laser or ultrasonic testing equipment is expensive and requires high maintenance costs, involves large investments, has complex structures, and is beyond the accuracy requirements of actual production. Utility Model Content

[0005] This invention addresses the problems of large errors, low efficiency, and lack of representative data in traditional detection methods, as well as the high cost and complex structure of laser or ultrasonic detection equipment. It provides an industrial silicon raw material detection system that can quickly obtain raw material particle size data that is instructive for actual production, improve production efficiency, and has a simple structure and low cost.

[0006] The technical solution adopted in this utility model is:

[0007] An industrial silicon raw material detection system, comprising:

[0008] A sampling device used to extract samples from raw materials;

[0009] The transmission device is connected to the outlet of the sampling device; and

[0010] A detection device, which interfaces with the transmission device, is used to detect and analyze the sample obtained by the sampling device to obtain detection data.

[0011] The detection device includes a sieving mechanism and a weighing mechanism connected to multiple discharge ends of the sieving mechanism. The sieving mechanism is used to divide the sample obtained by the sampling device into multiple groups with different particle sizes, and the weighing mechanism is used to weigh the multiple groups of samples with different particle sizes respectively, so that the obtained detection data includes the proportion of raw materials with different particle sizes in the sample.

[0012] Furthermore, it also includes:

[0013] An analysis unit in signal transmission with the detection device is used to analyze and store the detection data obtained by the detection device.

[0014] Further, the sampling device has at least a car sampler, which includes an upper feeder and a sampling head connected below the feeder, and a discharge port of the sampling device is arranged on one side of the feeder.

[0015] Further, another side of the feeder, different from the discharge port, is provided with a return port.

[0016] Further, the sampling device has at least a car sampler, which includes an upper feeder and a sampling head connected below the feeder, and a discharge port of the sampling device is arranged on one side of the feeder.

[0017] Further, the sampling device has at least a car sampler, which includes an upper feeder and a sampling head connected below the feeder, and a discharge port of the sampling device is arranged on one side of the feeder.

[0018] Further, the first transmission mechanism is provided with a first divider, and the first divider is connected with a first transmission pipeline, and an output end of the first transmission pipeline is connected with an input end of the screening mechanism.

[0019] Further, the second transmission mechanism is provided with a second divider, and the second divider is connected with a second transmission pipeline, and an output end of the second transmission pipeline is connected with the sample collecting device.

[0020] Further, the screening mechanism is a drum screen, and different specifications of screen sheets are arranged in the drum screen for screening.

[0021] Further, the weighing mechanism has at least a plurality of weighing hoppers, and the plurality of weighing hoppers are respectively connected with a plurality of discharge ends of the screening mechanism.

[0022] The utility model discloses the beneficial effects are:

[0023] 1. The utility model discloses a sampling device and transmission device are provided with the on -line detection device of cooperation, utilize screening mechanism to complete the sample separation of different particle sizes, and then utilize weighing mechanism to complete the weighing of different particle size samples, automatic calculation and determination, realize the component sampling detection, and simple and fastly obtain the particle size information data of washing clean coal raw material, and the industrial silicon production has better instructivity, solves the error of traditional detection mode in prior art, and the efficiency is low, and the data lacks representativeness, and the cost of laser or ultrasonic detection equipment is high, and the structure is complex. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 It is a structural schematic view of the analysis system of the embodiment of the present application.

[0026] Figure 2 It is a structural schematic view of the automobile sampler of the embodiment of the present application.

[0027] Figure 3 It is a structural schematic view of the first transmission device of the embodiment of the present application.

[0028] Figure 4 It is a structural schematic view of the second transmission device of the embodiment of the present application.

[0029] Figure 5 It is a structural schematic view of the detection device of the embodiment of the present application.

[0030] Figure 6 It is a structural schematic view of the dust collecting device of the embodiment of the present application.

[0031] The drawings show: 100 - sampling device, 110 - travelling crane, 120 - automobile sampler, 121 - discharge port, 122 - feeder, 123 - return port, 124 - sampling head, 130 - return hopper, 140 - hoist assembly.

[0032] 200 - detection device, 220 - screening mechanism, 240 - weighing mechanism, 241 - first weighing hopper, 242 - second weighing hopper, 243 - third weighing hopper, 260 - recovery mechanism, 262 - third transmission belt.

[0033] 300 - transmission device, 310 - first transmission mechanism, 312 - first transmission belt, 314 - feeding hopper, 316 - first classifier, 318 - first transmission pipeline, 320 - crushing mechanism, 330 - second transmission mechanism, 332 - second transmission belt, 334 - second classifier, 336 - second transmission pipeline.

[0034] 400 - dust collecting device, 410 - first dust collecting pipeline, 420 - second dust collecting pipeline, 430 - third dust collecting pipeline.

[0035] 500 - automobile parking area.

[0036] 600 - sample collection device. DETAILED DESCRIPTION

[0037] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of a specific example are described below. Of course, they are only examples, and the purpose is not to limit the utility model.

[0039] The embodiments of the utility model will be described in detail below in combination with the drawings.

[0040] Embodiment 1

[0041] This embodiment takes the washed fine coal raw material of industrial silicon as an example. The existing industrial silicon washed fine coal raw material particle size detection system usually detects in the way of manual sampling or mechanical sampling plus manual laboratory testing after sampling, or through laser or ultrasonic device detection. The former has the problems of large sampling error, local representation of the whole, which cannot reflect the overall situation, cannot detect in real time online, analysis data lag seriously, analysis data has little significance for real-time production process guidance, etc. The latter has the problems of high price and maintenance cost, large investment, complex structure and deviation from the precision requirement range of actual production.

[0042] In view of the problems in the prior art, the embodiment provides an industrial silicon raw material detection system for detecting the particle size of the washed fine coal raw material of industrial silicon. The industrial silicon raw material detection system can quickly obtain the washed fine coal raw material particle size data which has guiding significance for actual production, improve production efficiency, and has simple structure, low cost, and can also reduce equipment complexity. Please refer to Figures 1-6 The industrial silicon raw material detection system mainly comprises a sampling device 100, a detection device 200 and a transmission device 300 therebetween, and an analysis unit connected with the detection device 200.

[0043] The sampling device 100 of the embodiment mainly uses a car sampler 120 to take out the washed fine coal sample after the mine transport vehicle reaches the car parking area 500 at the specified position. As shown inFigure 1 , Figure 2 As shown, the sampling device 100 mainly includes a moving trolley 110 and a vehicle sampler 120 mounted on the trolley 110. Below the trolley 110 is a vehicle parking area 500. The trolley 110 has walkways on both sides and a main beam in the middle. A large trolley drive assembly and a small trolley drive assembly are respectively installed on the walkways and the main beam. The vehicle sampler 120 is mounted on the small trolley drive assembly, allowing it to move horizontally. A hoisting assembly 140 is also installed on the small trolley drive assembly, connected to the vehicle sampler 120, allowing it to move vertically. This enables the vehicle sampler 120 to move in three dimensions, uniformly sampling the washed coal raw materials in various parts of the lower carriage. Furthermore, the vehicle sampler 120 mainly consists of an upper feeder 122 and a sampling head 124 connected below the feeder 122. The sampling head 124 has a spiral drilling structure, which performs closed sampling from below and transmits the sample to the top through a spiral conveying pipe. The bottom of the upper feeder 122 is connected to the upper end of the spiral conveying pipe of the sampling head 124, and the feeder 122 has a discharge port 121 and a return port 123 on both sides. The discharge port 121 is equipped with an electrically controlled opening door to control its opening and closing. On the one hand, when the sampling head 124 is sampling in the carriage, the electrically controlled opening door is closed to prevent the collected sample from leaking out. On the other hand, when it is necessary to send the sample to the transmission device 300, the discharge port 121 is connected to the transmission device 300, and the electrically controlled opening door is opened to send the sample. The return port 123 on the other side is used to return the excess sample during the sampling process back to the raw materials loaded in the carriage.

[0044] The transmission device 300 is used for sample transmission, and the transmission device 300 comprises a first transmission mechanism 310. The main body of the first transmission mechanism 310 is a first transmission belt 312 arranged on a steel frame at one side of the automobile parking area 500 below the trolley 110. The feeding end of the first transmission belt 312 is located below the discharge port 121 of the automobile sampler 120, and the feeding end of the first transmission belt 312 is provided with a feeding hopper 314 for receiving materials. The discharging end of the first transmission belt 312 is provided below with a crushing mechanism 320. The main body of the crushing mechanism 320 is a crusher. The feeding end of the crushing mechanism 320 is arranged below the discharging end of the first transmission belt 312 for inputting the obtained sample. After crushing by the crusher, the sample is output from the discharging end of the crushing mechanism 320. The discharging end of the crushing mechanism 320 is provided below with a second transmission mechanism 330. The main body of the second transmission mechanism 330 is a second transmission belt 332 arranged on a steel frame at one side of the automobile parking area 500. The feeding end of the second transmission belt 332 is located below the discharging end of the crushing mechanism 320. The discharging end of the second transmission belt 332 is arranged at one side of the sampling device 100. A return hopper 130 is arranged at a position corresponding to the second transmission belt 332 on the sampling device 100. The return hopper 130 is rotatable. The return hopper 130 is used for receiving the excess sample from the discharging end of the second transmission belt 332 and moving the sample back into the carriage. Meanwhile, a first dividing device 316 and a second dividing device 334 are arranged in the first transmission belt 312 and the second transmission belt 332 respectively. The first dividing device 316 and the second dividing device 334 are used for separating a certain amount of sample from the belt for detection. The first dividing device 316 and the second dividing device 334 are arranged below the first transmission belt 312 and the second transmission belt 332 respectively and at the side of the first transmission belt 312 and the second transmission belt 332 respectively. A first transmission pipeline 318 and a second transmission pipeline 336 are arranged below the first dividing device 316 and the second dividing device 334 respectively and are connected to the first dividing device 316 and the second dividing device 334 respectively. The lower end of the second transmission pipeline 336 is connected to the sample collecting device 600 for collecting the crushed sample for detection of the composition and microstructure of the sample. The lower end of the first transmission pipeline 318 is connected to the detection device 200 for detection of the particle size of the sample.

[0045] The detection device 200 is used to detect and analyze the sample obtained by the sampling device 100, thereby obtaining particle size detection data. However, the detection device 200 in this embodiment differs from existing particle size testing methods. It does not employ complex and cumbersome methods such as manual sampling or mechanical sampling combined with manual laboratory testing, nor does it use high-cost methods such as laser or ultrasonic detection to statistically analyze the particle size of washed coal raw materials in each sample. Research on industrial production applications has found that in the industrial silicon production process, actual production requires that the particle size and gravity of each grade of material meet production needs. When adjustments are needed, the materials are graded according to the gravity of each grade to meet the requirements for furnace production. Therefore, it is not necessary to use the aforementioned high-precision laser detection or complex manual testing. Therefore, the analysis system of this embodiment is designed with a graded weighing detection device 200 to provide detection data that meets the needs of industrial applications. Figure 1 , Figure 5 As shown, the detection device 200 mainly includes a screening mechanism 220 and a weighing mechanism 240. The screening mechanism 220 is primarily a drum screen, capable of automatic feeding and discharging, and performing multi-stage screening of the particle size of the washed coal sample. Specifically, the upper feed end of the screening mechanism 220 connects to the output end of the first transmission pipe 318. The screening mechanism 220 is equipped with two sizes of screens, 5mm and 25mm, which can screen the uncrushed sample input from the upper feed end of the screening mechanism 220 into three grades of sample material: 0-5mm, 5-25mm, and above 25mm. The three grades of sample material are then sent from the three lower discharge ends of the screening mechanism 220 to different hoppers of the weighing mechanism 240. Meanwhile, the weighing mechanism 240 is located below the screening mechanism 220 and has a first weighing hopper 241, a second weighing hopper 242 and a third weighing hopper 243. The three weighing hoppers are respectively connected to the three discharge ends of the screening mechanism 220 to weigh the three different particle sizes of the output sample materials. The weighing mechanism 240 can automatically weigh, automatically calculate and automatically determine the proportion of raw materials of different particle sizes in the sample, and transmit signals with the analysis unit.

[0046] In this embodiment, the analysis unit is a DCS computer device. The analysis unit is used to analyze and store the raw material proportion detection data of different particle sizes in the sample obtained by the weighing mechanism 240 of the detection device 200, so as to guide the adjustment of batching and other process parameters in subsequent production.

[0047] One specific working method of this embodiment is as follows:

[0048] Firstly, the raw material transport vehicle enters the designated automobile parking area 500 position; then, the sampling device 100 is started, the sampling head 124 is controlled to move through the vehicle 110, and uniform sampling is carried out at each position in the automobile compartment; then, the sampling device 100 sends the collected sample to the first conveying belt 312 through the feeder 122, part of the sample on the first conveying belt 312 is separated through the first dividing device 316, and enters the screening mechanism 220 through the first conveying pipeline 318, and is screened into three groups of 0-5mm, 5-25mm and 25mm particle size in the screening mechanism 220; then, the three groups of samples are weighed through the weighing mechanism 240, respectively, automatically calculated, and automatically determined to obtain the proportion data of raw materials of different particle sizes in the sample, and the data is transmitted to the analysis unit; in addition, the remaining samples on the first conveying belt 312 enter the crushing mechanism 320 for crushing, and then are sent to the second conveying belt 332, part of the samples on the second conveying belt 332 are separated through the second dividing device 334, and are collected in the sample collecting device 600 through the second conveying pipeline 336 for subsequent component detection; the remaining samples on the second conveying belt 332 enter the return hopper 130 on the sampling device 100, and then are returned to the automobile compartment.

[0049] In the embodiment, the industrial silicon raw material detection system is provided with the online detection device 200 matched with the sampling device 100 and the conveying device 300, the screening mechanism 220 is used for separating samples of different particle sizes, the weighing mechanism 240 is used for weighing samples of different particle sizes, automatic calculation and determination are realized, the particle size information data of the washed fine coal raw material is obtained simply and quickly during component sampling detection, the industrial silicon production has good guidance, and the problems of large error, low efficiency, lack of representative data, high cost and complex structure of the laser or ultrasonic detection equipment in the prior art are solved.

[0050] Meanwhile, the detection device 200 in the embodiment is further provided with the recycling mechanism 260, the main body of the recycling mechanism 260 is a third conveying belt 262 arranged below the first weighing hopper 241, the second weighing hopper 242 and the third weighing hopper 243, the feeding end of the third conveying belt 262 is close to the lower part of the three weighing hoppers, and the discharging end of the third conveying belt 262 is below the discarded material collecting box, so that the sampling waste is fully recycled, and the raw material waste is avoided.

[0051] As Figure 1 , Figure 6As shown in the figure, in the embodiment, a dust collecting device 400 is arranged on the side of the third conveying belt 262, the body of the dust collecting device 400 comprises a dust collecting bag and a dust collecting fan, and the dust collecting pipe of the body of the dust collecting device 400 has three branches, from top to bottom, the first dust collecting pipe line 410, the second dust collecting pipe line 420 and the third dust collecting pipe line 430. The dust collecting port of the first dust collecting pipe line 410 is arranged above the discharging end of the first conveying belt 312, for reducing the dust raised by the first conveying belt 312 and the crushing mechanism 320; the dust collecting port of the second dust collecting pipe line 420 is arranged above the screening mechanism 220, for reducing the dust raised in the screening process of the screening mechanism 220; and the dust collecting port of the third dust collecting pipe line 430 is arranged on the side of the third conveying belt 262, for reducing the dust raised by the third conveying belt 262, thereby improving the cleanliness of the working environment in the whole factory building.

[0052] Preferably, in one or more other embodiments, the number and specifications of the sieve plates in the screening mechanism 220 and the number of hoppers of the weighing mechanism 240 can also be changed, so as to meet the needs of the production of industrial silicon by different manufacturers.

[0053] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An industrial silicon raw material detection system characterized by comprising: The sampling device (100) is used to take samples from raw materials. The transmission device (300) is connected with the discharge port (121) of the sampling device (100). The detection device (200) is connected with the transmission device (300), and the detection device (200) is used to detect and analyze the samples taken by the sampling device (100) to obtain detection data. The detection device (200) includes a screening mechanism (220) and a weighing mechanism (240) connected with multiple discharge ends of the screening mechanism (220); the screening mechanism (220) is used to divide the samples taken by the sampling device (100) into multiple groups with different particle sizes, and the weighing mechanism (240) is used to weigh the multiple groups of samples with different particle sizes respectively, so that the detection data obtained includes raw material proportion data of different particle sizes in the samples. Further comprising: An analysis unit in signal transmission with the detection device (200), and the analysis unit is used to analyze and store the detection data obtained by the detection device (200).

2. The industrial silicon raw material detection system according to claim 1, wherein The sampling device (100) at least has a car sampler (120), the car sampler (120) includes a feeder (122) at the upper part, and a sampling head (124) connected below the feeder (122), and the discharge port (121) of the sampling device (100) is arranged on one side of the feeder (122). Another side of the feeder (122) different from the discharge port (121) is provided with a return port (123).

3. The industrial silicon raw material detection system according to claim 1, wherein The sampling device (100) at least further has a travelling crane (110), the car sampler (120) is arranged on the trolley driving assembly of the travelling crane (110), and the car sampler (120) is connected with a hoist assembly (140).

4. The industrial silicon raw material detection system according to claim 3, wherein The transmission device (300) at least has a first transmission mechanism (310) arranged below the discharge port (121), one end of the output of the first transmission mechanism (310) is connected with a crushing mechanism (320), the discharge end of the crushing mechanism (320) is connected with a second transmission mechanism (330), one end of the output of the second transmission mechanism (330) is connected with a return hopper (130), and the return hopper (130) is arranged on the sampling device (100).

5. The industrial silicon raw material detection system according to claim 3, wherein The first transmission mechanism (310) is provided with a first subdividing device (316), the first subdividing device (316) is connected with a first transmission pipeline (318), and the output end of the first transmission pipeline (318) is connected with the feeding end of the screening mechanism (220).

6. The industrial silicon raw material detection system of claim 1, wherein The second transmission mechanism (330) is provided with a second subdividing device (334), the second subdividing device (334) is connected with a second transmission pipeline (336), and the output end of the second transmission pipeline (336) is connected with a sample collecting device (600).

7. The industrial silicon raw material detection system according to claim 6, wherein The screening mechanism (220) is a roller screen, different specifications of screen sheets are arranged in the roller screen for screening.

8. The industrial silicon raw material detection system according to claim 6, wherein The weighing mechanism (240) at least has multiple weighing hoppers, and the multiple weighing hoppers are respectively connected with multiple discharge ends of the screening mechanism (220).

9. The industrial silicon raw material detection system according to any one of claims 1 to 8, wherein ​ 10. The industrial silicon raw material detection system according to any one of claims 1 to 8, wherein ​

Images