Coke on-line automatic sampling and sample preparation detection system and method

Abstract

The invention discloses a coke on-line automatic sampling, sample preparation and detection system which comprises a sampling unit, a sample preparation unit and a refined sample unit, the sample preparation unit comprises a first-stage division unit, a material collection bin unit, a coke multi-stage screening unit, a rotary drum screening unit, a packaging unit, a first-stage crushing unit and a mobile robot; the sampling unit is connected with the first-stage division unit, the first-stage division unit is connected with the material collecting bin unit, an analysis sample and a moisture sample are arranged in the material collecting bin unit, and the moving route of the mobile robot is divided into an analysis sample route and a moisture sample route. The invention further discloses a method for carrying out coke online automatic sampling and sample preparation detection by utilizing the coke online automatic sampling and sample preparation detection system. According to the coke online automatic sampling, sample preparation and detection system and method, the mobile robot is added, online automatic sampling, sample preparation and physical analysis are connected together, the route is simplified, detection is real-time, and data are more representative.

Description

Technical Field

[0001] The present invention belongs to the field of sampling and sample preparation, and particularly relates to a coke sampling, sample preparation system and method. Background Art

[0002] With the gradual development of refined coal samples, the development and research of refined coke samples are also in progress. At present, the sampling, preparation and detection of coke samples are generally divided into two types. One is on-line automatic sampling and reduction to produce moisture samples and analysis samples, which are sent to the laboratory for further sample preparation, experimental detection and analysis. The other is on-line automatic sampling, sample preparation, particle size analysis and mechanical strength analysis in accordance with or by analogy with YB / T4547-2016, and moisture detection and chemical analysis are carried out in the laboratory.

[0003] The first type is actually simple sample preparation after automatic sampling, maintaining the original particle size of the coke, simple reduction to produce moisture samples and analysis samples. Then, particle size analysis, mechanical strength analysis, crushing, fine sample preparation, moisture detection and chemical analysis, etc. are all carried out in the laboratory. The workload of laboratory staff is large, and the human factor is also large; if the sample material is large, there is also a lot of waste material, which is difficult to handle; if the sample material is small, the representativeness is poor.

[0004] The second type overcomes some of the disadvantages of the first type, and conducts on-line automatic sampling, sample preparation and physical analysis, but the industrial analysis sample is only crushed to 3 mm. Further crushing, fine sample preparation, moisture detection and chemical analysis all need to be transferred to the laboratory.

[0005] Overall, at present, the sampling and preparation of coke samples are separated, the whole process is not coherent and convenient, it cannot be better controlled uniformly, it cannot be fully automatic on-line detected, it does not have real-time performance, and the data representativeness is poor. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies and defects in the background art, and provide a coke on-line automatic sampling, sample preparation and detection system and method with a coherent process, real-time performance of sample detection and good data representativeness.

[0007] To solve the above technical problem, the technical solution proposed by the present invention is: An on-line automatic sampling, sample preparation and testing system for coke, comprising a sampling unit, a sample preparation unit and a refined sample unit. The sample preparation unit includes a primary reduction unit, an aggregate bin unit, a multi-stage coke screening unit, a drum screening unit (the drum and screening are two processes. The drum performs physical destruction, and the screening is the particle size analysis of the sample material after the drum. Together, they analyze the coke strength, which are two unique processes for coke), a packaging unit, a primary crushing unit and a mobile robot. The sampling unit is connected to the primary reduction unit, the primary reduction unit is connected to the aggregate bin unit. There are analysis samples and moisture samples in the aggregate bin unit. The movement route of the mobile robot is divided into an analysis sample route and a moisture sample route; The analysis sample route includes the following paths: The aggregate bin unit is connected to the multi-stage coke screening unit through the mobile robot. The multi-stage coke screening unit is connected to the drum screening unit, the packaging unit and the primary crushing unit through the mobile robot. The primary crushing unit is connected to the refined sample unit through the mobile robot; The moisture sample route includes the following paths: The aggregate bin unit is connected to the primary crushing unit through the mobile robot. The primary crushing unit is connected to the refined sample unit through the mobile robot.

[0008] In the above on-line automatic sampling, sample preparation and testing system for coke, the mobile machine moves according to the route, which is divided into an analysis sample route and a moisture sample route. The analysis sample route is further divided into three routes: drum sample, thermal reaction sample and industrial analysis sample; The industrial analysis sample and the moisture sample enter the refined sample unit through the mobile robot, and only one mobile robot is set in the sample preparation unit.

[0009] In the above on-line automatic sampling, sample preparation and testing system for coke, preferably, the sampling unit includes a belt head sampler, a feeding belt and a feeding and reducing device. The belt head sampler is connected to the feeding and reducing device through the feeding belt, and the feeding and reducing device is connected to the primary reduction unit.

[0010] In the above on-line automatic sampling, sample preparation and testing system for coke, preferably, the primary reduction unit includes a distributor. The aggregate bin unit includes an analysis sample bin for accommodating analysis samples and a moisture sample bin for accommodating moisture samples. One end outlet of the distributor is connected to the analysis sample bin through a two-way belt conveyor, and the other end outlet of the distributor is directly connected to the moisture sample bin.

[0011] In the above on-line automatic sampling, sample preparation and testing system for coke, preferably, it further includes an external analysis sample to be tested unit and an external moisture sample to be tested unit. The external analysis sample to be tested unit is connected to the analysis sample bin through the mobile robot, and the external moisture sample to be tested unit is connected to the moisture sample bin through the mobile robot.

[0012] In the above-mentioned on-line automatic sampling, sample preparation and detection system for coke, preferably, the multi-stage coke screening unit includes a five-stage cylindrical screen, a particle size scale, a five-stage screen transfer belt and a three-way valve. There are five particle size scales, which are respectively used to receive the screened samples of the five-stage cylindrical screen, and are the following particle sizes: ≥80mm, 80mm - 60mm, 40mm - 60mm, 40mm - 25mm, <25mm. The inlet of the five-stage cylindrical screen is connected to the mobile robot, the outlets of the five-stage cylindrical screen are respectively connected to the five particle size scales, the particle size scales are connected to the three-way valve through the five-stage screen transfer belt, and the three-way valve outputs samples of >60mm, >25mm and full particle size, which are drum test samples, hot reaction samples and industrial analysis samples respectively. The drum test samples are sent to the drum screening unit by the mobile robot, the hot reaction samples are sent to the encapsulation unit by the mobile robot, and the industrial analysis samples are sent to the first-stage crushing unit by the mobile robot. After being crushed by the first-stage crushing unit, they are then sent to the refined sample unit by the mobile robot.

[0013] In the above-mentioned on-line automatic sampling, sample preparation and detection system for coke, preferably, the drum screening unit includes an automatic drum, a four-stage cylindrical screen and a weighing hopper. There are four weighing hoppers, which are respectively used to receive the screened samples of the four-stage cylindrical screen, and are the following particle sizes: ≥40mm, 40mm - 25mm, 25mm - 10mm, <10mm. The automatic drum is connected to the four-stage cylindrical screen by the mobile robot, and the outlets of the four-stage cylindrical screen are respectively connected to the four weighing hoppers.

[0014] In the above-mentioned on-line automatic sampling, sample preparation and detection system for coke, preferably, the first-stage crushing unit sequentially includes a 40mm jaw crusher and a 13mm jaw crusher.

[0015] In the above-mentioned on-line automatic sampling, sample preparation and detection system for coke, preferably, the refined sample unit includes a jaw crushing module, a fixed robot, a fine crushing module, a dichotomy module, a drying module, a grinding module, a moisture detection module and an encapsulation module. The jaw crushing module sequentially includes a 6mm jaw crusher and a jaw crushing and splitting; the fine crushing module sequentially includes a 1mm crusher and a fine crushing and splitting; The route of the industrial analysis sample is as follows: After being crushed by the first-stage crushing unit, it is sent to the jaw crushing module by the mobile robot for crushing and quartering, and then sent to the fine crushing module by the fixed robot for crushing and quartering into two sample materials. One is sent to the encapsulation module by the fixed robot, and the other is sent to the dichotomy module by the fixed robot to be divided into two sample materials, and then sent to the drying module by the fixed robot for drying. After drying, one of them is sent to the grinding module by the fixed robot to clean the grinding module and then discarded, and the other is sent to the grinding module by the fixed robot for grinding and then sent to the dichotomy module by the fixed robot to be divided into two sample materials, and then sent to the encapsulation module by the fixed robot, and is transported to the laboratory through the pneumatic conveying module; The route of the moisture sample is as follows: After being crushed by the first-stage crushing unit, it is sent to the jaw crushing module by the mobile robot for crushing and quartering, and then sent to the dichotomy module by the fixed robot to be divided into two sample materials. One is sent to the dichotomy module by the fixed robot again to be divided into two sample materials, and both are sent to the moisture detection module by the fixed robot for moisture detection.

[0016] In the above coke on-line automatic sampling and testing system, preferably, it further includes a waste material unit. The waste material unit includes a waste material elevator, a waste material bin and a waste material belt. There is a waste material module in the refined sample unit, and both the sample preparation unit and the refined sample unit are connected to the waste material elevator.

[0017] As a general technical concept, the present invention also provides a method for on-line automatic sampling and testing of coke using the above coke on-line automatic sampling and testing system, including the following steps: S1: Use the sampling unit to take coke as a sample material, and divide the sample material into two types of sample materials, namely moisture sample and analysis sample, through the first-stage quartering unit, and enter the aggregate bin unit; S2: The two types of sample materials, namely moisture sample and analysis sample, enter the sample preparation unit. The moisture sample is sent to the first-stage crushing unit by the mobile robot for crushing to complete pre-sampling; the analysis sample is sent to the coke multi-stage screening unit by the mobile robot, and through screening, weighing and distribution, three types of samples, namely drum sample, thermal reaction sample and industrial analysis sample, are obtained. The drum sample is sent to the drum screening unit by the mobile robot, the thermal reaction sample is sent to the encapsulation unit by the mobile robot, and the industrial analysis sample is sent to the first-stage crushing unit by the mobile robot. After being crushed by the first-stage crushing unit, pre-sampling is completed; S3: The moisture sample and the industrial analysis sample that have completed pre-sampling enter the refined sample unit. The moisture sample is sampled after crushing for detecting the moisture of the sample; the industrial analysis sample is coarsely crushed, quartered, finely crushed and then quartered to obtain two samples. One sample is dried, ground and bottled to obtain the final industrial analysis sample, and the other sample is bottled and retained.

[0018] In the present invention, in the on-line automatic sampling, sample preparation and testing system for coke, a mobile robot connects the primary sample reduction unit, the aggregate bin unit, the multi-stage coke screening unit, the drum screening unit, the primary crushing unit, the refined sample unit, and the waste unit together to form an organic whole. All the sample preparation links, physical analysis, and moisture detection are realized on-line automatically. In this way, all the control process systems can also be integrated into one, solving the problem of inconsistent control styles in individual controls. Coordinated by the host computer, intelligent and automatic management of the whole process is achieved.

[0019] With the addition of the mobile robot, the equipment process for coke sample collection and preparation can be arranged in a planar layout instead of a vertical layout. The process route is shortened, the sample is more representative, and the problems of many equipment links, high equipment costs, and high later maintenance costs are also overcome, further saving the construction cost. At the same time, the planar layout also solves the problem of large sample drop, large breakage rate of coke particles during transportation, and reduction of the authenticity and representativeness of the sample. The mobile robot organically combines the coke sample collection, preparation, and refined sample links instead of simply combining them, making the process route of the refined sample link more concise, smoother, and more representative.

[0020] In the present invention, a robot is also used in the refined sample link to optimize the process route.

[0021] In the present invention, the links of incoming analysis samples to be tested and incoming moisture samples to be tested are added to adapt to the samples to be tested with multiple methods and channels of simple sampling, and are applicable to enterprises with multiple transportation methods and sampling methods.

[0022] The chemical analysis laboratory needs to handle waste gas and waste materials, usually at a relatively long distance. The pneumatic conveying link of the present invention saves manpower and realizes real-time conveying of samples.

[0023] The on-line automatic sampling, sample preparation and testing system for coke of the present invention is aimed at the on-line automatic sampling, sample preparation and testing of this specific material of coke, optimizes the process flow of sample collection, sample preparation and refined sample, and proposes different process flows for moisture samples and analysis samples (including drum samples, thermal reaction samples and industrial analysis samples) respectively. The process flow is more comprehensive and reasonable, has better applicability to coke, and the sample is representative. Moreover, the present invention uses a mobile robot to connect each process flow into one, organically combines sample collection, sample preparation and refined sample into one, and the detection of the finally obtained sample has real-time performance, and the process flow and process route are more concise, which is beneficial to the development of the coke sampling and sample preparation industry.

[0024] Compared with the prior art, the advantages of the present invention are as follows: The on-line automatic sampling, sample preparation and testing system and method for coke of the present invention incorporate a mobile robot, connecting on-line automatic sampling, sample preparation and physical analysis together, simplifying the route, and also connecting the moisture detection and refined sample link together to form an overall process system. All sample preparation links, physical analysis and moisture detection are realized on-line automatically, achieving integration of site and control. The detection is real-time, the data is more representative, and the refined sample link is more representative and complete. The entire process flow is more concise and optimized, truly realizing the integration of site and control. Only chemical analysis is carried out in the laboratory, the process is coherent, saving space, time and manpower, and being more environmentally friendly. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is the general process flow chart of the on-line automatic sampling, sample preparation and testing system for coke of the present invention.

[0027] Figure 2 It is the flow chart of the sampling unit of the present invention.

[0028] Figure 3 It is the flow chart of the primary sample reduction unit of the present invention.

[0029] Figure 4 It is the flow chart of the aggregate bin unit of the present invention.

[0030] Figure 5 It is the flow chart of the coke multi-stage screening unit and the primary crushing unit of the present invention.

[0031] Figure 6 It is the flow chart of the drum screening unit of the present invention.

[0032] Figure 7 It is the flow chart of the refined sample unit of the present invention.

[0033] Figure 8 It is the flow chart of the waste material unit of the present invention.

[0034] Legend Explanation 1. Conveyor belt; 2. Sampling unit; 21. Belt head sampler; 22. Feeding belt; 23. Sampling waste elevator; 24. Feeding splitter; 3. Primary splitting unit; 31. Distributor; 4. Foreign analysis sample to be tested unit; 5. Aggregate bin unit; 51. Analysis sample bin; 55. Moisture sample bin; 6. Mobile robot; 7. Coke multi-stage screening unit; 72. Particle size scale; 73. Five-stage cylindrical screen; 77. Five-stage screen waste belt; 78. Three-way valve; 79. Five-stage screen transfer belt; 8. Rotary drum screening unit; 81. Automatic rotary drum; 82. Four-stage cylindrical screen; 83. Weighing hopper; 84. Four-stage cylindrical screen waste belt; 9. Encapsulation unit; 10. Pneumatic conveying module; 11. Refined sample unit; 111. Jaw crushing module; 1111. 6mm jaw crusher; 1112. Jaw crushing and splitting; 112. Fixed robot; 113. Fine crushing module; 1131. 1mm crusher; 1132. Fine crushing and splitting; 114. Encapsulation module; 115. Bifurcation module; 116. Drying module; 117. Grinding module; 118. Moisture detection module; 119. Waste module; 12. Primary crushing unit; 121. 13mm jaw crusher; 122. 40mm jaw crusher; 13. Waste unit; 131. Waste belt; 132. Waste bin; 133. Waste elevator; 15. Foreign moisture sample to be tested unit; 16. Two-way conveyor belt. Detailed implementation manners

[0035] To facilitate the understanding of the present invention, the following will describe the present invention more comprehensively and meticulously in conjunction with the accompanying drawings of the specification and preferred embodiments. However, the protection scope of the present invention is not limited to the following specific embodiments.

[0036] It should be particularly noted that when a certain element is described as "fixed to, fixedly connected to, connected to or communicated with" another element, it can be directly fixed, fixedly connected, connected or communicated to the other element, or indirectly fixed, fixedly connected, connected or communicated to the other element through other intermediate connecting members.

[0037] Unless otherwise defined, all the professional terms used hereinafter have the same meaning as commonly understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the present invention.

[0038] Unless otherwise specifically stated, various raw materials, reagents, instruments and equipment used in the present invention can be obtained through market purchase or can be prepared by existing methods.

[0039] Embodiment: As Figures 1 - 7As shown in the figure, the on-line automatic sampling, sample preparation and testing system for coke in this embodiment includes a sampling unit 2, a sample preparation unit and a refined sample unit 11. The sample preparation unit includes a primary reduction unit 3, an aggregate bin unit 5, a multi-stage coke screening unit 7, a drum screening unit 8, a packaging unit 9, a primary crushing unit 12 and a mobile robot 6. The sampling unit 2 is connected to the primary reduction unit 3, and the primary reduction unit 3 is connected to the aggregate bin unit 5. There are analysis samples and moisture samples in the aggregate bin unit 5. The moving route of the mobile robot 6 is divided into an analysis sample route and a moisture sample route; The analysis sample route includes the following paths: The aggregate bin unit 5 is connected to the multi-stage coke screening unit 7 through the mobile robot 6. The multi-stage coke screening unit 7 is connected to the drum screening unit 8, the packaging unit 9 and the primary crushing unit 12 through the mobile robot 6. The primary crushing unit 12 is connected to the refined sample unit 11 through the mobile robot 6; The moisture sample route includes the following paths: The aggregate bin unit 5 is connected to the primary crushing unit 12 through the mobile robot 6. The primary crushing unit 12 is connected to the refined sample unit 11 through the mobile robot 6.

[0040] In this embodiment, the sampling unit 2 includes a belt head sampler 21, a feeding belt 22 and a feeding and reducing device 24. The belt head sampler 21 is connected to the feeding and reducing device 24 through the feeding belt 22, and the feeding and reducing device 24 is connected to the primary reduction unit 3.

[0041] In this embodiment, the primary reduction unit 3 includes a distributor 31. The aggregate bin unit 5 includes an analysis sample bin 51 for accommodating analysis samples and a moisture sample bin 55 for accommodating moisture samples. One end outlet of the distributor 31 is connected to the analysis sample bin 51 through a two-way belt conveyor 16, and the other end outlet of the distributor 31 is directly connected to the moisture sample bin 55.

[0042] In this embodiment, it further includes an external analysis sample to be tested unit 4 and an external moisture sample to be tested unit 15. The external analysis sample to be tested unit 4 is connected to the analysis sample bin 51 through the mobile robot 6, and the external moisture sample to be tested unit 15 is connected to the moisture sample bin 55 through the mobile robot 6.

[0043] In this embodiment, the multi-stage coke screening unit 7 includes a five-stage cylindrical screen 73, a particle size scale 72, a five-stage screen transfer belt 79, and a three-way pipe 78. There are five particle size scales 72, which are respectively used to receive the screened samples of the five-stage cylindrical screen 73, and are the following particle sizes: ≥80mm, 80mm - 60mm, 40mm - 60mm, 40mm - 25mm, <25mm. The inlet of the five-stage cylindrical screen 73 is connected to the mobile robot 6, and the outlets of the five-stage cylindrical screen 73 are respectively connected to the five particle size scales 72. The particle size scales 72 are connected by the five-stage screen transfer belt 79 and the three-way pipe 78. The three-way pipe 78 outputs samples with >60mm, >25mm, and full particle size, which are drum samples, thermal reaction samples, and industrial analysis samples respectively. The drum samples are sent to the drum screening unit 8 by the mobile robot 6, the thermal reaction samples are sent to the encapsulation unit 9 by the mobile robot 6, and the industrial analysis samples are sent to the primary crushing unit 12 by the mobile robot 6. After being crushed by the primary crushing unit 12, they are then sent to the refined sample unit 11 by the mobile robot 6.

[0044] In this embodiment, the drum screening unit 8 includes an automatic drum 81, a four-stage cylindrical screen 82, and a weighing hopper 83. There are four weighing hoppers 83, which are respectively used to receive the screened samples of the four-stage cylindrical screen 82, and are the following particle sizes: ≥40mm, 40mm - 25mm, 25mm - 10mm, <10mm. The automatic drum 81 and the four-stage cylindrical screen 82 are connected by the mobile robot 6, and the outlets of the four-stage cylindrical screen 82 are respectively connected to the four weighing hoppers 83.

[0045] In this embodiment, the primary crushing unit 12 successively includes a 40mm jaw crusher 122 and a 13mm jaw crusher 121.

[0046] In this embodiment, the refined sample unit 11 includes a jaw crushing module 111, a fixed robot 112, a fine crushing module 113, a dichotomy module 115, a drying module 116, a grinding module 117, a moisture detection module 118, and an encapsulation module 114. The jaw crushing module 111 successively includes a 6mm jaw crusher 1111 and a jaw crushing and splitting 1112; the fine crushing module 113 successively includes a 1mm crusher 1131 and a fine crushing and splitting 1132; The industrial analysis sample route is as follows: After being crushed by the primary crushing unit 12, it is sent to the jaw crushing module 111 by the mobile robot 6 for crushing and quartering, and then sent to the fine crushing module 113 by the fixed robot 112 for crushing and quartering into two sample materials. One is sent to the encapsulation module 114 by the fixed robot 112, and the other is sent to the dichotomy module 115 by the fixed robot 112 to be divided into two sample materials, and then sent to the drying module 116 by the fixed robot 112 for drying. After drying, one of them is sent to the grinding module 117 by the fixed robot 112. After cleaning the grinding module 117, it is discarded, and the other is sent to the grinding module 117 by the fixed robot 112 for grinding and then sent to the dichotomy module 115 by the fixed robot 112 to be divided into two sample materials, and then sent to the encapsulation module 114 by the fixed robot 112, and then sent to the laboratory through the pneumatic conveying module 10; The moisture sample route is as follows: After being crushed by the primary crushing unit 12, it is sent to the jaw crushing module 111 by the mobile robot 6 for crushing and quartering, and then sent to the dichotomy module 115 by the fixed robot 112 to be divided into two sample materials. One is sent to the dichotomy module 115 again by the fixed robot 112 to be divided into two sample materials, and both are sent to the moisture detection module 118 by the fixed robot 112 for moisture detection.

[0047] As Figure 1 、 Figure 8 shown, in this embodiment, it further includes a waste material unit 13. The waste material unit 13 includes a waste material elevator 133, a waste material bin 132, and a waste material belt 131. A waste material module 119 is provided in the refined sample unit 11. The sample preparation unit and the refined sample unit 11 are both connected to the waste material elevator 133.

[0048] The method for on-line automatic sampling and testing of coke using the above coke on-line automatic sampling and testing system in this embodiment includes the following steps: S1: Use the sampling unit 2 to take coke as the sample material, and divide the sample material into two sample materials, namely the moisture sample and the analysis sample, through the primary quartering unit 3, and enter the aggregate bin unit 5; S2: The two sample materials of the moisture sample and the analysis sample enter the sample preparation unit. The moisture sample is sent to the primary crushing unit 12 by the mobile robot 6 to complete the pre-sampling preparation; the analysis sample is sent to the coke multi-stage screening unit 7 by the mobile robot 6, and three samples, namely the drum sample, the thermal reaction sample, and the industrial analysis sample, are obtained through sieving, weighing, and distribution. The drum sample is sent to the drum screening unit 8 by the mobile robot 6, the thermal reaction sample is sent to the encapsulation unit 9 by the mobile robot 6, and the industrial analysis sample is sent to the primary crushing unit 12 by the mobile robot 6, and the pre-sampling preparation is completed after being crushed by the primary crushing unit 12; S3: The moisture sample and industrial analysis sample of the prefabricated sample enter the refined sample unit 11. The moisture sample is sampled after being crushed for detecting the moisture content of the sample; the industrial analysis sample is coarsely crushed, quartered, finely crushed and then quartered to obtain two samples. One sample is dried, ground and bottled to obtain the final industrial analysis sample, and the other sample is bottled and retained.

[0049] Specifically, for the convenience of understanding the solution in this embodiment above, the following is a further detailed explanation: As Figure 1 shown, in this embodiment, there are two belts, namely Belt 1# and Belt 2#, that need to be sampled. This embodiment is not limited to the sampling method and the number of sampling lines. In other embodiments, there may be other sampling methods, multiple sampling lines, and it is not limited to the sampling quantity and sample preparation quantity, which are determined according to the actual situation and standards.

[0050] The on-line automatic sampling and sample preparation detection system for coke in this embodiment mainly includes a sampling unit 2, a sample preparation unit, a refined sample unit 11, and a waste material unit 13. Among them, the sample preparation unit includes a primary quartering unit 3, an aggregate bin unit 5, a mobile robot 6, a multi-stage coke screening unit 7, a drum screening unit 8, a packaging unit 9, a primary crushing unit 12, and is equipped with additional equipment, namely a pneumatic conveying module 10 and a two-way belt conveyor 16.

[0051] The whole process is as follows: After the sampling unit 2 samples, it is transferred to the primary quartering unit 3, and the rejected samples are transported to the user's original conveyor belt 1 (including 1# and 2#), and the rejected samples are conveyed away following the conveyor belt 1.

[0052] After passing through the primary quartering unit 3, they enter the two-way belt conveyors 16 of each line respectively. Through forward and reverse rotation, they enter different bins of the aggregate bin unit 5 and are divided into analysis samples and moisture samples. In this link, an external analysis sample to be inspected unit 4 and an external moisture sample to be inspected unit 15 are added, which enter the designated bins respectively, adapting to the samples to be inspected with multiple methods and channels for simple sampling.

[0053] First, introduce the process of the analysis sample: The analysis sample is carried by the mobile robot 6 and enters the multi-stage coke screening unit 7 for particle size analysis. At the same time, the analysis sample is prepared into three types of sample materials: drum sample, thermal reaction sample, and industrial analysis sample. The rejected samples enter the waste material unit 13. The drum sample is sent by the mobile robot 6 to the drum screening unit 8 for strength analysis, and the rejected samples are transferred to the waste material unit 13. The thermal reaction sample is grabbed by the mobile robot 6 and sent to the packaging unit 9, and is taken away manually for thermal reaction. The industrial analysis sample is grabbed by the mobile robot 6 and sent to the primary crushing unit 12, crushed to 13 mm, and sent by the mobile robot 6 to the refined sample unit 11 for further sample preparation.

[0054] The fine sample preparation made by the fine sample preparation unit 11 is transported to the laboratory by the pneumatic conveying module 10 for chemical analysis; the rejected samples will be transferred to the waste material module 119 or sent to the waste material unit 13 by the mobile robot 6. The use of the pneumatic conveying module 10 saves manpower, realizes real-time sample transportation, and is coordinated by the host computer.

[0055] Next, introduce the process of moisture samples: The mobile robot 6 grabs the moisture samples from the moisture sample bin 55 of the aggregate bin unit 5, sends them to the primary crushing unit 12, crushes them to 13 mm, then sends them to the fine sample preparation unit 11. The sample preparation continues in the fine sample preparation unit 11, and finally, moisture detection is carried out in the moisture detection module 118, and the detection results are uploaded to the host computer. The rejected samples will be transferred to the waste material module 119 or sent to the waste material unit 13 by the mobile robot 6.

[0056] Finally, introduce the waste material process: The rejected samples from the sample preparation unit and the fine sample preparation unit 11 are sent to the waste material unit 13 for disposal by the mobile robot 6. All the waste materials enter the waste material unit 13 and are transported to the original conveyor belt 1 of the user.

[0057] In this way, the on-line automatic sampling, sample preparation and detection process of coke is completed.

[0058] More specifically, in combination with the attached drawings, the following is a more detailed and specific implementation method: As Figure 2 shown, sampling is carried out in the sampling unit 2. The 1# belt head sampling machine 21 and the 2# belt head sampling machine 21 take a certain amount of samples according to the instructions of the host computer and are respectively transported to the corresponding feeding and dividing device 24 (1# feeding and dividing device 24 and 2# feeding and dividing device 24 respectively) through the 1# feeding belt 22 and the 2# feeding belt 22. After dividing, 10 Kg of samples are left respectively and transferred to the primary dividing unit 3.

[0059] The rejected materials are respectively transported to the corresponding original conveyor belt 1 of the user by the 1# sampling rejected material elevator 23 and the 2# sampling rejected material elevator 23, and the rejected samples are transported away along the main conveyor belt.

[0060] In this way, the sampling work of the sampling unit 2 is completed and enters the primary dividing unit 3. For the subsequent process, the mobile robot 6 is used to carry out the transportation throughout. The process equipment can be arranged on the first floor to achieve a planar layout.

[0061] As Figure 3 shown, in the primary dividing unit 3, the samples respectively enter the 1# dividing device 31 and the 2# dividing device 31, and 5 Kg of analysis samples and 5 Kg of moisture samples are respectively separated. The moisture samples directly enter the aggregate bin unit 5, and the analysis samples are transported to the two-way belt conveyor 16.

[0062] As Figure 4As shown, the two-way belt conveyor 16 of each line sends the analysis sample into the analysis sample bin 51 by forward and reverse rotation. The analysis sample bin 51 has bins 1#, 2#, 3#, and 4#, and bin 3# serves as a shared bin for backup. The incoming analysis sample unit to be inspected 4 is poured into bin 4# by the mobile robot 6. The moisture sample directly enters the moisture sample bin 55 of the aggregate bin unit 5. The moisture sample bin 55 includes bins 1#, 2#, and 3#, and the incoming moisture sample unit to be inspected 15 is poured into bin 3# by the mobile robot 6.

[0063] So far, all the sample materials are divided into two types, moisture samples and analysis samples, and enter the designated bins respectively.

[0064] First, the process of the analysis sample is introduced.

[0065] Under the instruction of the host computer and according to the batch situation, 50 Kg of the analysis sample is carried by the mobile robot 6 and enters the five-stage cylindrical screen 73 of the coke multi-stage screening unit 7, as Figure 5 shown. The five-stage cylindrical screen 73 rotates to screen the analysis sample into different particle size ranges and enters the corresponding particle size scales 72 respectively. The sample material with a particle size of ≥80 mm enters the 1# particle size scale 72, the sample material with a particle size of 80 mm - 60 mm enters the 2# particle size scale 72, the sample material with a particle size of 40 mm - 60 mm enters the 3# particle size scale 72, the sample material with a particle size of 40 mm - 25 mm enters the 4# particle size scale 72, and the sample material with a particle size of <25 mm enters the 5# particle size scale 72. The data is uploaded to the host computer.

[0066] According to the proportion of the particle size, the particle size scale 72 weighs and discharges the corresponding weight of the sample material, and respectively prepares 50 Kg of the drum sample with a particle size of >60 mm, 15 Kg - 20 Kg of the thermal reaction sample with a particle size of >25 mm, and >40 Kg of the industrial analysis sample with the whole particle size through the five-stage screen transfer belt 79, the 1# three-way valve 78, and the 2# three-way valve 78. The remaining material is transported to the waste lifting machine 133 through the five-stage screen waste belt 77 and transferred to the waste unit 13.

[0067] The analysis sample is made into three kinds of sample materials: drum sample, thermal reaction sample, and industrial analysis sample, which are introduced separately below.

[0068] A. Process of the drum sample The drum sample is sent into the drum screening unit 8 by the mobile robot 6, as Figure 6 shown.

[0069] Specifically, the drum sample is sent into the automatic drum 81 by the mobile robot 6. After its rotation reaches the requirement, it stops rotating, discharges the material, pours it into the sample bucket, and then is grabbed by the mobile robot 6 and poured into the four-stage cylindrical screen 82. The sample is screened into different particle size ranges and enters the corresponding weighing hoppers 83 respectively. Samples with a size of ≥40mm enter the 1# weighing hopper 83, samples with a size of 40mm - 250mm enter the 2# weighing hopper 83, samples with a size of 25mm - 10mm enter the 3# weighing hopper 83, and samples with a size of <10mm enter the 4# weighing hopper 83. The data is uploaded to the computer, and then the materials are discharged in sequence and transported by the waste belt 84 of the four-stage cylindrical screen to the waste elevator 133 and transferred to the waste unit 13.

[0070] Process of B heat reaction sample The heat reaction sample is grabbed by the mobile robot 6 and sent into the encapsulation unit 9, and then taken away manually for heat reaction.

[0071] Process of C industrial analysis sample The industrial analysis sample is grabbed by the mobile robot 6 and sent into the primary crushing unit 12, as Figure 5 shown.

[0072] First, it enters the 40mm jaw crusher 122 to crush the sample to 40mm, and then enters the 13mm jaw crusher 121 to crush the sample to 13mm. After crushing, it is sent by the mobile robot 6 to the refined sample unit 11 for further sample preparation and analysis. As Figure 7 shown.

[0073] The 13mm industrial analysis sample is poured by the mobile robot 6 into the 6mm jaw crusher 1111 of the jaw crushing module 111 and crushed to 6mm. After passing through the jaw crushing and reduction 1112, 5Kg of sample is reduced, and the discarded sample is sent by the mobile robot 6 to the waste elevator 133 and transferred to the waste unit 13.

[0074] The 6mm industrial analysis sample is poured by the fixed robot 112 into the 1mm crusher 1131 of the fine crushing module 113 and crushed to 1mm. After passing through the fine crushing and reduction 1132, a 0.3Kg sample and a sample of ≥200g are made, and the discarded material is transferred by the fixed robot 112 to the waste module 119.

[0075] The 0.3Kg industrial analysis sample is transferred by the fixed robot 112 to the encapsulation module 114, and then sent to the chemical laboratory through the pneumatic conveying module 10 for retention and storage.

[0076] Industrial analysis samples weighing ≥200g are transferred by the fixed robot 112 to the bisection module 115, evenly divided into two parts, and then sent by the fixed robot 112 to the drying module 116 for drying. After drying meets the requirements, they are poured into the grinding module 117 by the fixed robot 112. One part is used as the cleaning material, and after cleaning the grinding module 117, it is discarded and transferred by the fixed robot 112 to the waste module 119. The other part is ground into a sample material of 0.2mm.

[0077] Industrial analysis samples of 0.2mm are poured again into the bisection module 115 by the fixed robot 112, evenly divided into two parts, and then transferred by the fixed robot 112 to the encapsulation module 114 respectively, and then sent to the chemical laboratory through the pneumatic conveying module 10 for analysis.

[0078] So far, the process introduction of the analysis samples is completed.

[0079] Secondly, the process of moisture samples is introduced.

[0080] According to the instruction, the mobile robot 6 grabs the moisture sample from the moisture sample bin 55 of the aggregate bin unit 5 and sends it into the 40mm jaw crusher 122 of the primary crushing unit 12 to crush the sample to 40mm, and then enters the 13mm jaw crusher 121 to crush the sample to 13mm, as Figure 5 shown.

[0081] The moisture sample crushed to 13mm is sent by the mobile robot 6 to the refined sample unit 11, as Figure 7 shown.

[0082] The 13mm moisture sample is poured by the mobile robot 6 into the 6mm jaw crusher 1111 of the jaw crushing module 111, crushed to 6mm, and after jaw crushing and quartering 1112, 2Kg of sample material is quartered out. The discarded sample is sent by the mobile robot 6 to the waste elevator 133 and transferred to the waste unit 13.

[0083] The 6mm moisture sample is poured by the fixed robot 112 into the bisection module 115, divided into two parts, each part is 1Kg. One part is transferred by the fixed robot 112 to the waste module 119; the other part is poured again into the bisection module 115 by the fixed robot 112 and continues to be divided into two 0.5Kg sample materials, which are transferred by the fixed robot 112 to the moisture detection module 118 for moisture detection, and the detection results are uploaded to the upper computer.

[0084] After moisture detection, it is transferred by the fixed robot 112 to the waste module 119.

[0085] Finally, the waste process is introduced, as Figure 8 shown.

[0086] All the discarded samples sent to the waste material module 119 are fed into the waste material elevator 133 of the waste material unit 13 by the mobile robot 6.

[0087] In this way, all the discarded samples enter the waste material elevator 133 and are lifted to the waste material bin 132 on the second floor by the waste material elevator 133. The discarded samples of the same batch are stored in the waste material bin 132 and then transported to the original conveyor belt 1 of the user by the waste material belt 131 and are conveyed to the designated position along with this batch of coke.

[0088] In this way, the process of online automatic sampling, sample preparation and detection of a batch of coke is completed.

Claims

1. A coke online automatic sampling and testing system, characterized in that: The invention comprises a sampling unit (2), a sample preparation unit and a sample refining unit (11), wherein the sample preparation unit comprises a primary reduction unit (3), a material collection bin unit (5), a coke multi-stage screening unit (7), a drum screening unit (8), a packaging unit (9), a primary crushing unit (12) and a mobile robot (6), wherein the sampling unit (2) is connected to the primary reduction unit (3), the primary reduction unit (3) is connected to the material collection bin unit (5), the material collection bin unit (5) contains an analysis sample and a moisture sample, and the moving route of the mobile robot (6) is divided into an analysis sample route and a moisture sample route; The analysis sample route comprises the following paths: the aggregate bin unit (5) is connected to the coke multi-stage screening unit (7) via the mobile robot (6); the coke multi-stage screening unit (7) is connected to the drum screening unit (8), the packaging unit (9), and the primary crushing unit (12) via the mobile robot (6); the primary crushing unit (12) is connected to the refined sample unit (11) via the mobile robot (6); The moisture sampling route comprises the following path: the aggregate bin unit (5) is connected to the primary crushing unit (12) via the mobile robot (6), and the primary crushing unit (12) is connected to the refined sample unit (11) via the mobile robot (6).

2. The coke online automatic sampling and detection system according to claim 1 is characterized in that: The sampling unit (2) comprises a belt head sampler (21), a feeding belt (22) and a feeding reducer (24); the belt head sampler (21) is connected to the feeding reducer (24) via the feeding belt (22); and the feeding reducer (24) is connected to the primary reduction unit (3).

3. The coke online automatic sampling and testing system according to claim 1 is characterized in that: The primary reduction unit (3) comprises a distributor (31), and the collecting bin unit (5) comprises an analysis sample bin (51) for accommodating an analysis sample and a moisture sample bin (55) for accommodating a moisture sample. An outlet at one end of the distributor (31) is connected to the analysis sample bin (51) via a bidirectional belt conveyor (16), and an outlet at the other end of the distributor (31) is directly connected to the moisture sample bin (55).

4. The coke online automatic sampling and testing process system according to claim 3 is characterized in that: It also comprises an external analysis sample unit (4) and an external moisture sample unit (15), wherein the external analysis sample unit (4) is connected to the analysis sample bin (51) via the mobile robot (6), and the external moisture sample unit (15) is connected to the moisture sample bin (55) via the mobile robot (6).

5. The coke online automatic sampling and testing system according to claim 1 is characterized in that: The coke multi-stage screening unit (7) comprises a five-stage cylindrical screen (73), a particle size scale (72), a five-stage screen transfer belt (79) and a tee (78). The particle size scale (72) is provided with five particles, which are respectively used to receive the screening samples of the five-stage cylindrical screen (73), and the particle sizes are respectively the following: ≥80mm, 80mm-60mm, 40mm-60mm, 40mm-25mm, and <25mm. The inlet of the five-stage cylindrical screen (73) is connected to the mobile robot (6), and the outlet of the five-stage cylindrical screen (73) is respectively connected to the five particle size scales (72). The particle size scales (72) are connected to the mobile robot (6). The five-stage screen transfer belt (79) is connected to the tee (78), and the tee (78) outputs samples with particle sizes of >60 mm, >25 mm and full sizes, which are drum materials, thermal reaction samples and industrial analysis samples, respectively. The drum materials are sent to the drum screening unit (8) through the mobile robot (6), the thermal reaction samples are sent to the packaging unit (9) through the mobile robot (6), and the industrial analysis samples are sent to the primary crushing unit (12) through the mobile robot (6), and after being crushed by the primary crushing unit (12), they are sent to the refined sample unit (11) through the mobile robot (6).

6. The coke online automatic sampling and testing system according to claim 1 is characterized in that: The drum screening unit (8) comprises an automatic drum (81), a four-stage cylindrical screen (82) and a weighing bucket (83). Four weighing buckets (83) are provided, respectively used to receive the screened samples of the four-stage cylindrical screen (82), and the particle sizes are respectively the following: ≥40 mm, 40 mm-25 mm, 25 mm-10 mm, and <10 mm. The automatic drum (81) and the four-stage cylindrical screen (82) are connected via the mobile robot (6), and the outlets of the four-stage cylindrical screen (82) are respectively connected to the four weighing buckets (83).

7. The coke online automatic sampling and testing system according to claim 1 is characterized in that: The primary crushing unit (12) comprises a 40 mm jaw crusher (122) and a 13 mm jaw crusher (121) in sequence.

8. The coke online automatic sampling and testing system according to claim 1 is characterized in that: The refined sample unit (11) comprises a jaw crushing module (111), a fixed robot (112), a fine crushing module (113), a binary module (115), a drying module (116), a grinding module (117), a moisture detection module (118) and a packaging module (114); the jaw crushing module (111) comprises a 6 mm jaw crusher (1111) and a jaw crushing splitter (1112); the fine crushing module (113) comprises a 1 mm crusher (1131) and a fine crushing splitter (1132); The industrial analysis sample route is as follows: after being crushed by the primary crushing unit (12), the sample is sent to the jaw crushing module (111) by the mobile robot (6) for crushing and reduction, and then sent to the fine crushing module (113) by the fixed robot (112) for crushing and reduction into two samples, one of which is sent to the packaging module (114) by the fixed robot (112), and the other is sent to the binary module (115) by the fixed robot (112) for separation into two samples, and then sent to the fixed robot (112) for The samples are sent to the drying module (116) for drying. After drying, one portion is sent to the grinding module (117) by the fixed robot (112) to be cleaned and discarded. The other portion is sent to the grinding module (117) by the fixed robot (112) to be ground and then sent to the binary module (115) by the fixed robot (112) to be divided into two portions. The samples are sent to the packaging module (114) by the fixed robot (112) and then transported to the laboratory by the pneumatic conveying module (10); The moisture sampling route is as follows: after being crushed by the primary crushing unit (12), the sample is sent to the jaw crushing module (111) by the mobile robot (6) for crushing and reduction, and then sent to the binary module (115) by the fixed robot (112) to be divided into two samples; one sample is sent to the binary module (115) by the fixed robot (112) to be divided into two samples, and both samples are sent to the moisture detection module (118) by the fixed robot (112) for moisture detection.

9. The coke online automatic sampling and testing system according to claim 1, characterized in that: The invention also comprises a discard unit (13), wherein the discard unit (13) comprises a discard elevator (133), a discard bin (132) and a discard belt (131); a discard module (119) is provided in the sample refining unit (11); and the sample preparation unit and the sample refining unit (11) are both connected to the discard elevator (133).

10. A method for performing online automatic sampling and testing of coke using the online automatic sampling and testing system for coke according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: using the sampling unit (2) to take coke as a sample, and reducing the sample into two samples, a moisture sample and an analysis sample, through the primary reduction unit (3), and entering the collecting bin unit (5); S2: Two samples, a moisture sample and an analytical sample, enter the sample preparation unit. The moisture sample is sent to the primary crushing unit (12) by the mobile robot (6) to be crushed to complete the pre-sample preparation. The analytical sample is sent to the coke multi-stage screening unit (7) by the mobile robot (6) to obtain three samples, namely, a drum sample, a thermal reaction sample and an industrial analytical sample, through screening, weighing and distribution. The drum sample is sent to the drum screening unit (8) by the mobile robot (6), the thermal reaction sample is sent to the packaging unit (9) by the mobile robot (6), and the industrial analytical sample is sent to the primary crushing unit (12) by the mobile robot (6). After being crushed by the primary crushing unit (12), the pre-sample preparation is completed. S3: The moisture sample and industrial analysis sample of the pre-prepared sample enter the refined sample unit (11), the moisture sample is crushed and then sampled for detecting the moisture content of the sample; the industrial analysis sample is roughly crushed, reduced, and finely crushed, and then reduced to obtain two samples, one sample is dried, ground, and bottled to obtain the final industrial analysis sample, and the other sample is bottled and retained.

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