Intelligent screening and sampling device for carbon monitoring

Abstract

The utility model provides an intelligent screening and sampling device for carbon monitoring. The intelligent screening and sampling device comprises a coal mill, a pulverized coal leakage screening capacity box, a filter screen unit, a discharging hopper, a sampling vehicle, first weighing equipment, second weighing equipment and a controller. By the adoption of the technical scheme, after coal collected from a coal conveying line is ground into pulverized coal through the coal mill, the pulverized coal enters the discharging hopper through the pulverized coal sieve capacity box and the filter screen unit, the sampling vehicle firstly moves to the sampling position below the discharging hopper, and the weight of the pulverized coal entering the sampling container in the sampling vehicle is weighed in real time through the first weighing device; after the sampling amount reaches the set sampling amount, the second control valve is closed, the sampling vehicle after sampling is completed is moved to the second weighing device for weighing, whether the difference value of two times of weighing is within the allowable difference or not is compared, and then the accuracy of the sampling amount is ensured. According to the utility model, intelligentization of coal sample acquisition is realized, the working efficiency is improved on the basis of ensuring the data quality, and the improvement of the construction of a dual-carbon system is effectively supported.

Description

Technical Field

[0001] The utility model relates to the technical field of energy carbon monitoring, in particular to an intelligent screening sampling device for energy carbon monitoring. Background Art

[0002] Currently, carbon emissions from coal combustion are calculated directly using coal consumption activity data and default carbon emission factors. However, carbon emission factors vary across regions, coal types, and combustion conditions. Therefore, this approach of uniformly using default values ​​for calculations also has significant deviations. To obtain emission factors from coal combustion more promptly and accurately, manual sampling is currently commonly used, with fixed-point and scheduled inspections. Coal composition is then obtained through testing and analysis, ultimately leading to the calculation of emission factors. However, due to manual intervention and operation, this process is complex and time-consuming, making it impossible to guarantee timely and accurate acquisition of sample parameters. This makes it difficult to objectively and realistically reflect the authenticity, fairness, and objectivity of the data. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an intelligent screening and sampling device for energy carbon monitoring.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve the technical problem is: an intelligent screening sampling device for carbon monitoring, comprising:

[0005] Coal mills, which are used to grind coal into coal powder;

[0006] A pulverized coal screen capacity box is located below the coal mill discharge port, and a first control valve is provided at the lower outlet of the pulverized coal screen capacity box;

[0007] A filter unit is located below the pulverized coal screening capacity box and is used to screen the pulverized coal;

[0008] A discharge funnel is located below the filter unit, and a second control valve is provided at the lower outlet of the discharge funnel;

[0009] A sampling vehicle, wherein the sampling vehicle is provided with a sampling container and a traveling mechanism for driving the sampling container to move;

[0010] a first weighing device, located below the discharge hopper;

[0011] a second weighing device, which is located to the side of the first weighing device, and the sampling vehicle can move between the first weighing device and the second weighing device;

[0012] A controller is connected to the coal mill, the first control valve, the second control valve, the sampling vehicle, the first weighing device and the second weighing device by signal.

[0013] With the technical solution of this utility model, coal collected from the coal conveyor line is ground into coal powder by the pulverizer, and then enters the discharge funnel through the coal powder screening capacity box and filter unit. The sampling vehicle first moves to the sampling position below the discharge funnel, and the weight of the coal powder entering the sampling container in the sampling vehicle is weighed in real time by the first weighing device. After reaching the set sampling volume, the second control valve is closed. The sampling vehicle is then moved to the second weighing device for weighing after the sampling is completed. The difference between the two weighings is compared to see if it is within the tolerance, thereby ensuring the accuracy of the sampling volume. This utility model realizes the intelligent acquisition of coal samples, improves work efficiency on the basis of ensuring data quality, and effectively supports the construction and improvement of the dual carbon system.

[0014] Furthermore, the filter unit includes a bracket, a double-layer fine filter, a double-layer medium fine filter and a double-layer general fine filter. The bracket is also provided with a filter replacement mechanism for switching the double-layer fine filter, the double-layer medium fine filter and the double-layer general fine filter to below the lower outlet of the coal powder screening capacity box respectively.

[0015] By adopting the above preferred solution, a suitable filter screen can be selected for configuration according to the requirements of coal powder fineness.

[0016] Furthermore, the pulverized coal screening capacity box is provided with an infrared detection sensor for detecting the amount of pulverized coal.

[0017] By adopting the above preferred solution, the amount of coal powder entering the coal powder leakage screen capacity box can be set. When the coal powder amount exceeds the limit value, the infrared monitoring sensor will transmit the detection signal to the controller, and the controller will process it and issue a command signal to control the action of the front-end coal mill.

[0018] Furthermore, an infrared monitoring device is provided at the sampling position below the discharge funnel for detecting whether the sampling vehicle is in place.

[0019] The above preferred solution is adopted to ensure that the sampling vehicle is correctly positioned and prevent the coal powder from being scattered due to incorrect positioning.

[0020] Furthermore, it also includes a residual material collection vehicle, which is provided with a residual material collection container and a traveling mechanism for driving the residual material collection container to move.

[0021] Furthermore, the pulverized coal screen capacity box and the side wall of the discharge funnel are respectively provided with vibration devices.

[0022] By adopting the above preferred solution, after sampling of one batch of coal is completed, the remaining material is promptly released to prevent it from mixing with the next batch of coal samples and affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] The numbers and letters in the figure represent the names of the corresponding parts:

[0026] 1-First weighing device; 2-Second weighing device; 3-Infrared monitoring device; 4-Sampling vehicle; 5-Sampling container; 6-Second control valve; 7-Discharging funnel; 8-Filter unit; 9-Double-layer fine filter; 10-Double-layer medium-fine filter; 11-Double-layer general fine filter; 12-Pulverized coal screen capacity box; 13-Controller; 14-Pulverizer. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, in one embodiment of the present invention, an intelligent screening sampling device for energy carbon monitoring includes:

[0029] a coal mill 14 for grinding coal into coal powder;

[0030] The pulverized coal leakage screening capacity box 12 is located below the discharge port of the coal mill 14, and a first control valve is provided at the lower outlet of the pulverized coal leakage screening capacity box 12;

[0031] The filter unit 8 is located below the pulverized coal screening capacity box 12 and is used to screen the pulverized coal;

[0032] A discharge funnel 7 is located below the filter unit 8, and a second control valve 6 is provided at the lower outlet of the discharge funnel 7;

[0033] The sampling vehicle 4 is provided with a sampling container 5 and a traveling mechanism for driving the sampling container to move;

[0034] A first weighing device 1, which is located below the discharge hopper 7;

[0035] A second weighing device 2, which is located to the side of the first weighing device 1, and the sampling vehicle 4 can move between the first weighing device 1 and the second weighing device 2;

[0036] The controller 13 is connected to the coal mill 14 , the first control valve, the second control valve 6 , the sampling vehicle 4 , the first weighing device 1 and the second weighing device 2 via signals.

[0037] The beneficial effects of adopting the above technical solution are as follows: the coal collected from the coal conveyor line is ground into coal powder by the pulverizer, and then enters the discharge funnel through the coal powder screening capacity box and the filter unit. The sampling vehicle first moves to the sampling position below the discharge funnel, and the weight of the coal powder entering the sampling container in the sampling vehicle is weighed in real time by the first weighing device. After reaching the set sampling volume, the second control valve is closed, and the sampling vehicle that has completed the sampling is moved to the second weighing device for weighing. The difference between the two weighings is compared to see if it is within the tolerance. If it is within the tolerance of 0.01%, the sampling requirements for analysis are met, and the coal powder sample in the sampling container will be taken out for inspection and analysis; if the tolerance exceeds 0.01%, the second weighing device will report an abnormal signal to the controller, and the sample needs to be discarded or a new sampling vehicle needs to be arranged for re-sampling, thereby ensuring the accuracy of the sampling volume. The utility model realizes the intelligent acquisition of coal samples, improves work efficiency on the basis of ensuring data quality, and effectively supports the construction and improvement of the dual carbon system.

[0038] In other embodiments of the present invention, the filter unit 8 includes a bracket, a double-layer fine filter 9, a double-layer medium-fine filter 10, and a double-layer normal fine filter 11. The bracket is also equipped with a filter switching mechanism for switching the double-layer fine filter 9, the double-layer medium-fine filter 10, and the double-layer normal fine filter 11 to below the lower outlet of the pulverized coal screening capacity box 12. The beneficial effect of adopting this technical solution is that the appropriate filter can be selected and configured according to the required pulverized coal fineness.

[0039] In other embodiments of the present invention, the specific form of the filter screen replacement mechanism is not limited and can be obtained from the existing technology. For example, a double-layer fine filter, a double-layer medium-fine filter, and a double-layer general fine filter are arranged in parallel at the same level, and the filter screen replacement mechanism drives the double-layer fine filter, the double-layer medium-fine filter, and the double-layer general fine filter to move horizontally along the bracket synchronously, so as to switch to the lower outlet of the coal powder leakage screening capacity box as needed. For another example, the double-layer fine filter, the double-layer medium-fine filter, and the double-layer general fine filter are arranged in a staggered manner at different heights, and the double-layer fine filter, the double-layer medium-fine filter, and the double-layer general fine filter are driven by independent rotary drive mechanisms to swing independently. As needed, the double-layer fine filter, the double-layer medium-fine filter, and the double-layer general fine filter are driven by their respective rotary drive mechanisms to move to the lower outlet of the coal powder leakage screening capacity box.

[0040] In other embodiments of the present invention, the specific structural form of the coal mill 14 is not limited and can be selected from the existing technology, such as a ball mill, a vibration mill, a planetary mill, etc.

[0041] In other embodiments of the present invention, the pulverized coal screen capacity box 12 is equipped with an infrared sensor for detecting the amount of pulverized coal. This advantageous effect of employing the above-described technical solution is that the amount of pulverized coal entering the pulverized coal screen capacity box can be set. When the pulverized coal amount exceeds the limit, the infrared monitoring sensor transmits a detection signal to the controller, which then processes the signal and issues a command signal to control the operation of the front-end coal mill.

[0042] In other embodiments of the present invention, an infrared monitoring device 3 is provided at the sampling position below the discharge hopper 7 to detect whether the sampling vehicle is in place. The above technical solution has the beneficial effect of ensuring that the sampling vehicle is correctly positioned and preventing coal dust from being scattered due to incorrect positioning.

[0043] Other embodiments of the present invention also include a residual material collection vehicle equipped with a residual material collection container and a traveling mechanism for moving the residual material collection container. The pulverized coal screening capacity box and the sidewalls of the discharge hopper are each equipped with a vibrating device. The beneficial effect of employing this technical solution is that after sampling a batch of coal, residual material is promptly discharged to prevent it from mixing with the next batch of coal samples and affecting the test results.

[0044] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable ordinary technicians in this field to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent screening sampling device for energy carbon monitoring, characterized in that: include: Coal mills, which are used to grind coal into coal powder; A pulverized coal screen capacity box is located below the coal mill discharge port, and a first control valve is provided at the lower outlet of the pulverized coal screen capacity box; A filter unit is located below the pulverized coal screening capacity box and is used to screen the pulverized coal; A discharge funnel is located below the filter unit, and a second control valve is provided at the lower outlet of the discharge funnel; A sampling vehicle, wherein the sampling vehicle is provided with a sampling container and a traveling mechanism for driving the sampling container to move; a first weighing device, located below the discharge hopper; a second weighing device, which is located to the side of the first weighing device, and the sampling vehicle can move between the first weighing device and the second weighing device; A controller is connected to the coal mill, the first control valve, the second control valve, the sampling vehicle, the first weighing device and the second weighing device by signal.

2. The intelligent screening sampling device for energy carbon monitoring according to claim 1 is characterized in that: The filter unit includes a bracket, a double-layer fine filter, a double-layer medium-fine filter and a double-layer general fine filter. The bracket is also provided with a filter replacement mechanism for switching the double-layer fine filter, the double-layer medium-fine filter and the double-layer general fine filter to below the lower outlet of the coal powder leakage screening capacity box respectively.

3. The intelligent screening sampling device for energy carbon monitoring according to claim 1 is characterized in that: The pulverized coal leakage screening capacity box is provided with an infrared detection sensor for detecting the amount of pulverized coal.

4. The intelligent screening sampling device for energy carbon monitoring according to claim 3 is characterized in that: An infrared monitoring device is provided at the sampling position below the discharge funnel for detecting whether the sampling vehicle is in place.

5. The intelligent screening sampling device for energy carbon monitoring according to claim 1 is characterized in that: It also includes a residual material collection vehicle, which is provided with a residual material collection container and a walking mechanism for driving the residual material collection container to move.

6. The intelligent screening sampling device for energy carbon monitoring according to claim 1 is characterized in that: Vibrating devices are respectively provided on the side walls of the pulverized coal screen capacity box and the discharge funnel.

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