A method and system for irregular sampling of a mineral aggregate

Abstract

The application discloses a kind of for mineral aggregate indefinite sampling method and system, the method comprises the following steps: S1, after receiving to the signal of belt feeding and the signal of packing sample barrel placement in place, control sampler start;S2, control sampler single acquisition mineral aggregate, and the mineral aggregate of single acquisition is sent to the classification belt;S3, the instantaneous weight of existing mineral aggregate on belt machine is obtained, and the interval time of next sampling is calculated according to instantaneous weight;S4, when reaching the interval time calculated, return S2;S5, repeat S2-S4, until there is no mineral aggregate on belt machine, control sampler shutdown.Sampler sampling realizes remote operation, and sampling interval time is automatically changed according to material flow quality high frequency, effectively reduces the human factor in the process of raw fuel material inspection into factory, so that sampling collection is more objective, safe, time is obtained by time formula calculation, the time obtained is random, reduces the situation of human intervention sampling time, so that sampling result is more objective and safe.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ore sampling, and particularly relates to a method and system for irregular sampling of ore. BACKGROUND

[0002] Currently, when the sampling machine at the head of the belt is actually applied to ore and clean coal sampling, normal operation is achieved, and the automatic sampling time is set as a fixed time. Each time the sampling interval time needs to be manually adjusted by a person at the sampling site.

[0003] Although this method is relatively simple, it still has the following problems. First, the sampling interval time is adjusted by a person, and habitual operation cannot be avoided in human operation, which easily leads to the same sampling interval time and human intervention, resulting in impure sampling. Second, a person needs to go to the site to manually change the sampling interval time, and the sampling equipment needs to be manually turned on and off each time, which is relatively troublesome to operate. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provides a method and system for irregular sampling of ore, which realizes remote start and automatically changes the sampling interval time according to the high frequency of the material flow quality, avoids human intervention in the sampling time, and avoids human risks.

[0005] To achieve the above-mentioned purpose, based on the specification, the present application provides a method for irregular sampling of ore, comprising the following steps:

[0006] S1, after receiving the belt feeding signal and the signal that the sample bucket is placed in place, the sampling machine is started;

[0007] S2, the sampling machine is controlled to collect ore at a time, and the ore collected at a time is sent to the proportioning belt;

[0008] S3, the real-time weight of the existing ore on the belt machine at this time is obtained as the instantaneous weight, and the interval time for the next sampling is calculated according to the instantaneous weight;

[0009] S4, when the calculated interval time is reached, return to S2;

[0010] S5, repeat S2-S4 until there is no ore on the belt machine, and the sampling machine is turned off.

[0011] Through the above technical solution, the sampling realizes one-key start, remote operation, makes the operation more convenient, and the system can automatically change the sampling interval time according to the high frequency of the material flow quality, so that the human cannot intervene in the sampling interval time, effectively reduces the human factors in the process of inspection of raw and fuel materials entering the factory, makes the sampling collection more objective and safe.

[0012] Optionally, the belt is provided with a flow weight device for monitoring the weight data on the belt in real time.

[0013] Optionally, the weight of the belt is taken as the no-material weight, when the real-time detected weight data is less than or equal to the no-material weight, the sampling machine is controlled to stop; when the real-time detected weight data is greater than the no-material weight, the sampling machine is controlled to start.

[0014] By taking the real-time weight as the condition for starting and stopping the sampling machine, the energy consumption of the sampling machine can be reduced as much as possible.

[0015] Optionally, after obtaining the instantaneous weight, the instantaneous weight is converted into an instantaneous weight value at a first predetermined ratio, an interval time value is calculated according to the instantaneous weight value at a second predetermined ratio, and the interval time is calculated according to the interval time value at a third predetermined ratio.

[0016] Since the instantaneous weight value is constantly changing, the interval time calculated according to the instantaneous weight value is also random, thereby reducing the possibility of human intervention in the sampling time as much as possible, and making the sampling result more objective and safe.

[0017] Optionally, after sampling the same batch of mineral materials, the method further comprises: preparing samples from the samples placed in the packaging sample barrels after multiple sampling.

[0018] After sampling the same batch of mineral materials, the samples obtained by multiple sampling are summarized, and then the samples are prepared, so as to ensure the safety of the obtained samples.

[0019] Based on the specification, the present application provides a kind of for mineral material indefinite time sampling system, including control module and acquisition module, the acquisition module is used to acquire belt feeding signal, packaging sample barrel is placed in place signal, real-time weight, the control module is used to after receiving belt feeding signal and packaging sample barrel is placed in place signal, control sampling machine starts, control sampling machine single collection mineral material, the mineral material collected by single collection is sent to the classification belt, and the real-time weight of the existing mineral material on the belt machine at this time is taken as instantaneous weight, the interval time of next sampling is calculated according to instantaneous weight, and after reaching the interval time calculated, the sampling machine is controlled to single collection mineral material again, until there is no mineral material conveying on the belt machine, control sampling machine stops.

[0020] Through the above technical scheme, the whole sampling system structure principle is simple, and the specific execution components are all common components and devices in existing technology, which is very convenient for later maintenance.

[0021] Optionally, the acquisition module is also used to monitor the weight data on the belt in real time.

[0022] Optionally, the control module is further configured to use the weight of the belt itself as the empty weight, control the sampling machine to stop when the real-time monitored weight data is less than or equal to the empty weight, and control the sampling machine to start when the real-time monitored weight data is greater than the empty weight.

[0023] Optionally, the control module is further configured to convert the instantaneous weight into an instantaneous weight value at a first predetermined ratio after obtaining the straight weight, calculate an interval time value according to the instantaneous weight value at a second predetermined ratio, and convert the interval time value into the interval time at a third predetermined ratio.

[0024] The system is used throughout the process to complete sampling of the mineral aggregate and calculation of the sampling interval time, completely avoids human intervention of the wind direction, and ensures safety of the sampling result.

[0025] Compared with the prior art, the present application has the following beneficial effects: 1. The sampling is realized by one-key starting, remote operation, and the operation is more convenient, and the system can automatically change the sampling interval time according to the high frequency of the material flow quality, so that the human intervention to the sampling interval time is avoided, the human factors in the process of inspection of raw and fuel materials entering the factory are effectively reduced, the sampling collection is more objective and safe; 2. The whole sampling system has simple structure principle, and the specific components all use common components and devices in the prior art, so that the later maintenance is very convenient; 3. The system is used throughout the process to complete sampling of the mineral aggregate and calculation of the sampling interval time, completely avoids human intervention of the wind direction, and ensures safety of the sampling result. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The method flowchart of the embodiment of the present application is shown in the figure;

[0027] Figure 2 The system structure schematic diagram of the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below with reference to the accompanying drawings of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0029] In the description of the present application, it should be noted that the terms "intermediate", "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] As shown in Figure 1 The specific scheme of the embodiment is as follows: a method for irregular sampling of mineral aggregate, comprising the following steps:

[0031] S1, after receiving the belt feeding signal and the packaging sample barrel placement in place signal, the sampling machine is started;

[0032] It should be noted that, since the belt feeding signal and the packaging sample barrel placement in place signal are not necessarily received at the same time, when running the program, it is necessary to ensure that the two signals are received before sampling, and the program does not start and sampling does not occur when either signal is missing.

[0033] S2, control the sampling machine to collect mineral aggregate at a time, and send the mineral aggregate collected at a time to the sample splitting belt;

[0034] After the mineral aggregate collected at a time is placed on the sample splitting belt, the mineral aggregate collected at a time is sent to the sample splitter by the sample splitting belt for sample splitting, and the sample after sample splitting is loaded into the packaging sample barrel.

[0035] It should be noted that, after the sampling machine collects mineral aggregate at a time, the sampling machine enters a stopped state.

[0036] S3, the real-time weight of the existing mineral aggregate on the belt machine at this time is obtained as the instantaneous weight, and the interval time for the next sampling is calculated according to the instantaneous weight;

[0037] Among them, the flow weighing device is installed on the belt machine for real-time monitoring of the weight data on the belt, and the weight data here is always changing.

[0038] Secondly, the instantaneous weight represents a value taken out by the control end from the real-time monitoring weight data of the flow weighing device at the moment of sampling.

[0039] In this embodiment, after the instantaneous weight is obtained, the instantaneous weight is converted into an instantaneous weight value at a first predetermined ratio, the interval time value is calculated according to the instantaneous weight value at a second predetermined ratio, and the interval time is calculated according to the interval time value at a third predetermined ratio.

[0040] It should be noted that in the embodiment, the first predetermined ratio is 1:1, and the second preset ratio is 1:100 after obtaining the converted instantaneous weight value. The interval time value obtained by the second preset ratio conversion is converted into interval time by a ratio of 1:1.

[0041] It should be noted that in the embodiment, the calculated interval time is in seconds.

[0042] Since the instantaneous weight value is constantly changing, the interval time calculated based on the instantaneous weight value is also random, thereby reducing the possibility of human intervention in sampling time and making the sampling result more objective and safe.

[0043] S4, when the calculated interval time is reached, return to S2;

[0044] S5, repeat S2-S4 until there is no ore on the belt conveyor, and control the sampling machine to shut down.

[0045] In the embodiment, the original weight of the belt is used as the no-load weight. When the weight data detected by the material flow weighing device in real time is less than or equal to the no-load weight, it indicates that there is no ore conveying on the belt conveyor. At this time, the sampling machine is controlled to stop;

[0046] At the same time, when the weight data detected by the material flow weighing device in real time is greater than the no-load weight, the sampling machine is controlled to start.

[0047] By using real-time weight as the condition for starting and stopping the sampling machine, the energy consumption of the sampling machine can be reduced as much as possible.

[0048] From the starting point that the obtained real-time weight is greater than the no-load weight to the ending point that the real-time weight is less than or equal to the no-load weight, it indicates that the sampling of the same batch of ore is completed. After the samples taken multiple times during the period are all put into the packaging sample barrel, the samples in the packaging sample barrel are manually prepared.

[0049] Since the weight obtained by the material flow weighing device will change constantly along with the ore conveying on the belt conveyor, it can be ensured that the interval time obtained each time is different, thereby maximizing the randomness of the sampling interval time.

[0050] After the sampling in one stage is completed, the sampling machine is shut down, which can reduce the energy consumption to a certain extent.

[0051] It should be noted that when the same batch of ore is conveyed, the last interval time recorded in the program will be initialized before the next program is run.

[0052] The whole sampling system realizes one-key starting and remote operation, so that operation is more convenient, and the sampling interval time can be automatically changed according to the material flow quality at a high frequency through the system, so that the sampling interval time cannot be intervened by people, the human factors in the inspection process of raw materials and fuels into the factory are effectively reduced, the sampling collection is more objective and safe.

[0053] Based on the same technical concept as the foregoing method embodiments, the present application also provides an irregular-time sampling system for mineral materials, comprising a control module and an acquisition module, the acquisition module is used to acquire a belt feeding signal, a sample barrel packaging placement in place signal and an instantaneous weight, the control module is used to control the sampling machine to start single acquisition of mineral materials after receiving the belt feeding signal and the sample barrel packaging placement in place signal, and send the single-acquired mineral materials to a proportioning belt, and acquire the real-time weight of the existing mineral materials on the belt machine at this time as the instantaneous weight, calculate the interval time of next sampling according to the instantaneous weight, and control the sampling machine to single-acquire mineral materials again when the calculated interval time is reached, until there is no mineral material conveying on the belt machine, the sampling machine is stopped.

[0054] In the present system, the acquisition module acquires real-time weight, and the control module takes the real-time weight at that moment as the instantaneous weight when the sampling machine samples.

[0055] Through the above technical solution, the whole sampling system has simple structure principle, and the specific execution components all adopt common components and devices in existing technology, so that the later maintenance is very convenient.

[0056] The acquisition module is also used to monitor the weight data of the belt in real time through a material flow weighing device, and the weight data is actually a real-time weight that is constantly changing.

[0057] The control module further comprises comparing the weight data with a built-in weight parameter of the control module, the control module sets the original weight of the belt as the no-material weight as the built-in weight parameter of the control module; the control module compares the weight data with the no-material weight, if the weight data is less than or equal to the no-material weight, the control module controls the sampling machine to stop, and if the weight data is greater than the no-material weight, the control module controls the sampling machine to start.

[0058] In addition, after the control module acquires the instantaneous weight, the instantaneous weight is converted into an instantaneous weight value at a first predetermined ratio, the interval time value is calculated according to the instantaneous weight value at a second preset ratio, and the interval time is calculated according to the interval time value at a third preset ratio.

[0059] Specifically, the control module converts the instantaneous weight acquired by the acquisition module into an instantaneous weight value at a ratio of 1:1, calculates the interval time value according to the instantaneous weight value at a ratio of 1:100, and calculates the corresponding time according to the interval time value at a ratio of 1:1.

[0060] The whole use system completes the sampling of the mineral aggregate and the calculation of the sampling interval time, completely avoids the human intervention wind direction, and ensures the safety of the sampling result.

[0061] Working principle: the weight of the belt on the belt conveyor is monitored by the material flow weighing device at all times, and when the real-time weight is less than or equal to the no-material weight, it indicates that there is no ore material on the belt conveyor, and in the case of no ore material, the sampler is in a shutdown state, and once the real-time weight is greater than the no-material weight, it indicates that there is ore material on the belt conveyor, at which time the control end controls the sampler to be in a start state, and then sampling is started, and then the obtained sample is sent to the sample reduction belt, and then the sample is sent to the sample reduction machine by the sample reduction belt for sample reduction, and then the sample after sample reduction is loaded into a packaging sample barrel, at the moment when the sampler is running, the instantaneous weight at that moment is obtained, and the instantaneous weight is brought into the formula by the system to calculate the interval time of the next sampling, and after the interval time is reached, sampling is performed again, and the interval time of the next sampling is calculated again, and the operation is repeated until the real-time weight is less than or equal to the no-material weight again, and the sampler is controlled to be shut down by the system, and waits for the next belt conveyor to start conveying the mineral aggregate.

[0062] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for irregular sampling of mineral materials, characterized in that, Includes the following steps: S1. After receiving the belt feeding signal and the signal that the packaging sample barrel has been placed in place, control the sampling machine to start; S2. Control the sampler to collect mineral material in a single batch and send the collected mineral material to the reducing belt. S3. Obtain the real-time weight of the ore material currently on the conveyor belt as the instantaneous weight, calculate the interval time for the next sampling based on the instantaneous weight, after obtaining the instantaneous weight, convert the instantaneous weight into an instantaneous weight value according to a first predetermined ratio, calculate the interval time value according to the instantaneous weight value according to a second predetermined ratio, and convert the interval time value into an interval time according to a third predetermined ratio. S4. When the calculated interval time is reached, return to S2; S5. Repeat S2-S4 until there is no more ore on the belt conveyor, then shut down the sampling machine.

2. The method for intermittent sampling of minerals according to claim 1, characterized in that: The belt is equipped with a material flow weighing device for real-time monitoring of the weight data on the belt.

3. The method for intermittent sampling of minerals according to claim 2, characterized in that: The original weight of the belt is used as the weight without material. When the real-time monitored weight data is less than or equal to the weight without material, the sampling machine is controlled to stop; when the real-time monitored weight data is greater than the weight without material, the sampling machine is controlled to start.

4. The method for intermittent sampling of minerals according to claim 1, characterized in that: After completing the sampling of the same batch of ore, the process also includes: preparing samples from samples that have been collected multiple times and placed in the packaging sample container.

5. An unscheduled sampling system for minerals, characterized in that, The system includes a control module and a data acquisition module. The data acquisition module is used to acquire belt feeding signals, packaging sample barrel placement signals, and real-time weight. The control module is used to, upon receiving the belt feeding signal and the packaging sample barrel placement signal, control the sampler to start a single sampling of ore, send the single-sampled ore to the reducing belt, and obtain the real-time weight of the ore currently on the belt as the instantaneous weight. Based on the instantaneous weight, the interval time for the next sampling is calculated, and after the calculated interval time is reached, the sampler is controlled to perform a single sampling of ore again until there is no more ore being conveyed on the belt, at which point the sampler is controlled to stop. The control module is also used to, after obtaining the instantaneous weight, convert the instantaneous weight into an instantaneous weight value according to a first predetermined ratio, calculate the interval time value according to the instantaneous weight value according to a second predetermined ratio, and convert the interval time value into an interval time according to a third predetermined ratio.

6. The non-timely sampling system for minerals according to claim 5, characterized in that: The acquisition module is also used to monitor the weight data on the belt in real time.

7. The non-timely sampling system for minerals according to claim 5, characterized in that: The control module is also used to use the original weight of the belt as the weight without material, and to control the sampling machine to stop when the real-time monitored weight data is less than or equal to the weight without material; and to control the sampling machine to start when the real-time monitored weight data is greater than the weight without material.

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