Coal quality analysis system

Abstract

The utility model discloses a coal quality analysis system, relates to the field of coal quality detection equipment, and can solve the problems of low efficiency and poor accuracy of coal quality detection in the prior art. Comprising a main frame, a first conveying belt connected to the main frame and used for conveying a coal sample, a crusher connected to the main frame and used for crushing the coal sample, and a dip angle belt conveyor connected to the main frame and used for conveying the coal sample on the first conveying belt to the crusher, the coal quality analyzer is connected to the main frame and is used for detecting the coal quality of the coal sample; the chain bucket elevator is connected to the main frame and is used for lifting the coal sample crushed by the crusher to the coal quality analyzer; the first conveying belt, the dip angle belt conveyor, the crusher, the chain bucket elevator and the coal quality analyzer are sequentially arranged along the detection conveying direction of the coal sample.

Description

Technical Field

[0001] The present application relates to the field of coal quality detection equipment, and in particular to a coal quality analysis system. Background Art

[0002] For thermal power plants, using coal that meets quality standards is an important prerequisite for ensuring power generation efficiency and environmental compliance. Therefore, accurate and timely quality testing of coal entering the power plant has become a key step in ensuring the normal operation of the power plant.

[0003] In the prior art, each batch of coal entering a power plant is usually tested by manual sampling, and the collected coal samples are sent to the laboratory for analysis. However, this manual testing method is inefficient and prone to operating errors, resulting in inaccurate test results. In addition, due to the delay in the testing process, real-time monitoring of coal quality cannot be achieved, which in turn affects the operating efficiency and safety of the power plant. Utility Model Content

[0004] To this end, the present application provides a coal quality analysis system to solve the problems of low efficiency and poor accuracy of coal quality detection in the prior art.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A coal quality analysis system comprises a main frame, a first conveyor belt connected to the main frame and used for conveying coal samples, a crusher connected to the main frame and used for crushing coal samples, an inclined belt conveyor connected to the main frame and used for conveying the coal samples from the first conveyor belt to the crusher, a coal quality analyzer connected to the main frame and used for detecting the coal quality of the coal samples, and a chain bucket elevator connected to the main frame and used for lifting the coal samples crushed by the crusher to the coal quality analyzer. The first conveyor belt, the inclined belt conveyor, the crusher, the chain bucket elevator and the coal quality analyzer are arranged in sequence along the detection and conveying direction of the coal samples.

[0007] Optionally, the main frame is also connected to a second conveyor belt for transporting coal samples crushed and transported from the crusher by the chain bucket elevator, the coal quality analyzer is used to detect the coal samples transported on the second conveyor belt, and the end of the second conveyor belt away from the chain bucket elevator is connected to a third conveyor belt for transferring the coal samples on the second conveyor belt to a waste bucket.

[0008] Optionally, the main frame is also connected to a screening assembly located between the inclined belt conveyor and the crusher, the discharge port of the inclined belt conveyor close to one end of the crusher is higher than the feed port of the crusher, and the screening assembly includes a plurality of transmission rollers rotatably connected to the main frame, and there is a screening gap between adjacent transmission rollers to allow some small-size coal samples of the inclined belt conveyor to fall into the crusher.

[0009] Optionally, the third conveyor belt is located at the bottom of the second conveyor belt, and the coal samples on the second conveyor belt are transmitted to the third conveyor belt through a conveying pipe, the third conveyor belt and the screening assembly are at the same level, and the multiple transmission rollers of the screening assembly are located at one end of the third conveyor belt away from the conveying pipe, and the waste bucket is located at one end of the third conveyor belt away from the screening assembly.

[0010] Optionally, the feeding port of the inclined belt conveyor is connected to the middle of the first conveyor belt, and both ends of the first conveyor belt are respectively connected to fourth conveyor belts for collecting coal samples collected by a car sampling machine.

[0011] Optionally, the main frame is also connected to a beam plate located between the coal quality analyzer and the discharge port of the chain bucket elevator, and a beam gap for adjusting the coal sample is formed between the beam plate and the second conveyor belt to adjust the flow height of the coal sample on the second conveyor belt.

[0012] Optionally, the main frame is a steel frame structure connected to a ground concrete structure.

[0013] Optionally, the outer sides of the first conveyor belt, the second conveyor belt, the third conveyor belt and the fourth conveyor belt are each provided with a sealing protective shell connected to the main frame.

[0014] Compared with the prior art, this application has at least the following beneficial effects:

[0015] The coal sample to be tested is transported to the inclined belt conveyor through the first conveyor belt, and the inclined belt conveyor transports the coal sample to the crusher for crushing, so that the coal sample is broken into particles of the test size. The crushed coal sample is then lifted to the coal quality analyzer by the chain bucket elevator, and the crushed coal sample is tested by the coal quality analyzer. The entire process realizes automated testing, replacing manual testing, and effectively improving the efficiency and accuracy of coal quality testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more intuitively illustrate the prior art and the present application, several exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components) based on the technical concepts and exemplary drawings disclosed in the present application.

[0017] Figure 1 A schematic diagram of the overall structure of a coal quality analysis system provided in one embodiment of the present application;

[0018] Figure 2 for Figure 1 Side view of

[0019] Figure 3 An overall process flow chart of coal sample detection in a coal quality analysis system provided in one embodiment of the present application;

[0020] Figure 4 A partial structural diagram of the cooperation between a second conveyor belt, a coal quality analyzer, and a beam plate of a coal quality analysis system provided in one embodiment of the present application;

[0021] Figure 5 A partial structural schematic diagram of a screening component of a coal quality analysis system provided in one embodiment of the present application.

[0022] Description of reference numerals:

[0023] 1. Main frame; 11. Beam plate; 111. Beam gap; 2. First conveyor belt; 3. Crusher; 4. Inclined belt conveyor; 5. Coal quality analyzer; 6. Chain bucket elevator; 7. Second conveyor belt; 71. Conveyor pipe; 8. Third conveyor belt; 81. Waste barrel; 9. Screening assembly; 91. Transfer roller; 92. Screening gap; 10. Fourth conveyor belt. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0026] refer to Figure 1-5 The present application discloses a coal quality analysis system, including a main frame 1, a first conveyor belt 2 connected to the main frame 1 and used for conveying coal samples, a crusher 3 connected to the main frame 1 and used for crushing the coal samples, an inclined belt conveyor 4 connected to the main frame 1 and used for conveying the coal samples from the first conveyor belt 2 to the crusher 3, a coal quality analyzer 5 connected to the main frame 1 and used for detecting the coal quality of the coal samples, and a chain bucket elevator 6 connected to the main frame 1 and used for lifting the coal samples crushed by the crusher 3 to the coal quality analyzer 5. The first conveyor belt 2, the inclined belt conveyor 4, the crusher 3, the chain bucket elevator 6, and the coal quality analyzer 5 are arranged in sequence along the detection and conveying direction of the coal samples.

[0027] The coal sample to be tested is transported to the inclined belt conveyor 4 through the first conveyor belt 2, and the inclined belt conveyor 4 transports the coal sample to the crusher 3 for crushing, so that the coal sample is broken into particles of a particle size to be tested. The crushed coal sample is then lifted to the coal quality analyzer 5 by the chain bucket elevator 6, and the crushed coal sample is tested by the coal quality analyzer 5. The entire process realizes automated testing, replacing manual testing, and effectively improving the efficiency and accuracy of coal quality testing.

[0028] The first conveyor belt 2, the inclined belt conveyor 4, the crusher 3, the chain bucket elevator 6, and the coal quality analyzer 5 are all prior art, and this application does not elaborate on them; in addition, coal samples are generally transported into the power plant by a transport vehicle. When the transport vehicle is close to the coal quality analysis system, sampling can be carried out by a car sampler (also prior art), and some coal samples are taken from the transport vehicle and placed on the first conveyor belt 2.

[0029] The detection and transportation direction refers to the transportation direction of the coal sample from transportation to detection.

[0030] The coal quality element analyzer uses high-energy pulse laser online detection technology to perform real-time online detection of coal quality indicators such as moisture, ash content, calorific value, sulfur content, etc. The monitoring data can be transmitted to the quality inspection and monitoring center in real time; the system can record the detection data in real time and establish a detection system database, ultimately realizing process management of coal quality monitoring.

[0031] The main frame 1 is also connected to a second conveyor belt 7 for conveying coal samples crushed and transported from the crusher 3 by the chain bucket elevator 6. The coal quality analyzer 5 is used to detect the coal samples transported on the second conveyor belt 7. The end of the second conveyor belt 7 away from the chain bucket elevator 6 is connected to a third conveyor belt 8 for transferring the coal samples on the second conveyor belt 7 to the waste bucket 81.

[0032] After the coal quality analyzer 5 completes the detection of the coal sample, the second conveyor belt 7 conveys the detected coal sample to the third conveyor belt 8, and then transfers the coal sample to the waste bucket 81 for processing. This process not only realizes the automation and continuity of coal quality detection, but also ensures the safe processing of the coal sample after detection and avoids environmental pollution. Through this design, the system can timely process the waste after detection and improve the environmental protection of the entire detection process.

[0033] The main frame 1 is also connected to a screening assembly 9 located between the inclined belt conveyor 4 and the crusher 3. The discharge port of the inclined belt conveyor 4 close to the crusher 3 is higher than the feed port of the crusher 3. The screening assembly 9 includes a plurality of transmission rollers 91 rotatably connected to the main frame 1. There is a screening gap 92 between adjacent transmission rollers 91 to allow some small-size coal samples of the inclined belt conveyor 4 to fall into the crusher 3.

[0034] Before the coal sample is transported to the crusher 3 through the inclined belt conveyor 4, the multiple conveying rollers 91 of the screening assembly 9 preliminarily screen the coal sample, and the small-sized coal sample is directly dropped into the crusher 3 through the screening gap 92, while the coal sample with a larger particle size continues to be transported to the crusher 3 along the inclined belt conveyor 4. This screening process reduces the amount of coal sample that the crusher 3 needs to process, thereby reducing the workload and wear of the crusher 3 and improving the crushing efficiency.

[0035] In some embodiments, the distance between two adjacent transmission rollers 91 can be adjusted, thereby achieving flexible control of the coal sample screening accuracy.

[0036] The third conveyor belt 8 is located at the bottom of the second conveyor belt 7, and the coal samples of the second conveyor belt 7 are transmitted to the third conveyor belt 8 through the conveying pipe 71. The third conveyor belt 8 and the screening assembly 9 are at the same level, and the multiple transmission rollers 91 of the screening assembly 9 are located at the end of the third conveyor belt 8 away from the conveying pipe 71, and the waste bucket 81 is located at the end of the third conveyor belt 8 away from the screening assembly 9.

[0037] The third conveyor belt 8 is located at the bottom of the second conveyor belt 7, and receives the coal sample detected by the coal quality analyzer 5 and transmitted through the conveying pipe 71. At the same time, the third conveyor belt 8 is at the same level as the screening component 9, and can receive the coal sample screened by the screening component 9. In this way, the third conveyor belt 8 can process both the tested coal samples and the screened coal samples, and transport them together to the waste barrel 81 for processing. This design makes the structural layout of the entire system more compact, improves the space utilization efficiency, and also facilitates the unified processing of coal samples, improving the working efficiency and environmental protection of the system.

[0038] The feeding port of the inclined belt conveyor 4 is connected to the middle of the first conveyor belt 2, and both ends of the first conveyor belt 2 are respectively connected to fourth conveyor belts 10 for collecting coal samples collected by the automobile sampling machine.

[0039] The feed port of the inclined belt conveyor 4 is connected to the middle of the first conveyor belt 2, so that the coal sample can enter the inclined belt conveyor 4 from the middle part of the first conveyor belt 2, thereby improving the efficiency of coal sample transportation. In addition, the first conveyor belt 2 is connected to both ends with a fourth conveyor belt 10 for collecting coal samples collected by the car sampler, which means that vehicles entering the power plant can enter from both sides of the first conveyor belt 2, thereby achieving high efficiency and convenience in coal sample collection. This design not only improves the efficiency of coal sample collection and transportation, but also helps to reduce vehicle waiting time and improve the working efficiency of the entire coal quality analysis system.

[0040] The main frame 1 is also connected to a beam plate 11 located between the coal quality analyzer 5 and the discharge port of the chain bucket elevator 6. A beam gap 111 for adjusting the coal sample is formed between the beam plate 11 and the second conveyor belt 7 to adjust the material flow height of the coal sample on the second conveyor belt 7.

[0041] The beam plate 11 is located between the coal quality analyzer 5 and the discharge port of the chain bucket elevator 6. Through the beam gap 111 formed between the beam plate 11 and the second conveyor belt 7, the coal sample on the second conveyor belt 7 is sorted so that the material flow height (thickness) of the coal sample becomes consistent. This sorting process is beneficial to the detection of the coal quality analyzer 5 because it ensures that the coal sample is evenly distributed in the detection area, thereby improving the accuracy and reliability of the detection.

[0042] The main frame 1 is a steel frame structure connected to the ground concrete structure. The steel frame structure provides a solid support to ensure the stable operation of the entire coal quality analysis system. The steel frame structure has good bearing capacity and seismic resistance, and can effectively withstand the vibration and load generated during the operation of the equipment, ensuring the safety and reliability of the equipment. In addition, the use of the steel frame structure also facilitates the installation and maintenance of the system, and improves the overall durability and service life of the system.

[0043] The first conveyor belt 2, the second conveyor belt 7, the third conveyor belt 8 and the fourth conveyor belt 10 are all provided with a sealed protective shell connected to the main frame 1. The sealed protective shell effectively prevents the spillage of coal dust and environmental pollution. The sealed protective shell can not only prevent the coal dust from spreading to the surrounding environment, but also protect other equipment from being corroded by dust and pollutants, thereby extending the service life of the system equipment. In addition, the setting of the sealed protective shell can also help improve the cleanliness and safety of the workplace, and provide a more comfortable and healthier working environment for operators.

[0044] Among them, the sealing protection shell is provided with corresponding funnel structures at the inlet and outlet to facilitate the transmission of coal samples between adjacent workstations and equipment.

[0045] The first conveyor belt 2, the second conveyor belt 7, the third conveyor belt 8 and the fourth conveyor belt 10 are all driven by multiple active rollers and supported and steered by multiple passive rollers. The driving method and supporting method of the first conveyor belt 2, the second conveyor belt 7, the third conveyor belt 8 and the fourth conveyor belt 10 are also prior arts and will not be described in detail in this application.

[0046] In some embodiments, the first conveyor belt 2, the second conveyor belt 7, the third conveyor belt 8, the fourth conveyor belt 10, the angle belt conveyor 4, the crusher 3, and the chain bucket elevator 6 of the present application can all be powered by an air compression system (which can be an air compressor). The power provided by the air compression system can not only ensure the stable operation of the equipment, but also in a humid or flammable environment, the equipment driven by the air compression system is safer than the equipment driven by electricity, reducing the risk of fire or explosion.

[0047] The overall process flow of coal sample testing is as follows:

[0048] 1. Transport vehicles entering the site: Transport vehicles entering the power plant carry coal samples to be tested into the testing area.

[0049] 2. Sampling: Coal samples are collected from the transport vehicle through the fourth conveyor belt 10, and the sampled coal samples are transported to the first conveyor belt 2.

[0050] 3. Preliminary transportation: The first conveyor belt 2 transports the collected coal samples to the inclined belt conveyor 4.

[0051] 4. Screening: The inclined belt conveyor 4 transports the coal sample to the screening component 9, and the coal sample is screened through the transmission roller 91 and the screening gap 92 of the screening component 9. The small-sized coal sample falls directly into the crusher 3, while the larger-sized coal sample continues to fall along the inclined belt conveyor 4 to the crusher 3.

[0052] 5. Crushing: Crusher 3 crushes the coal sample to make the coal sample reach the particle size required for detection.

[0053] 6. Lifting: The chain bucket elevator 6 lifts the crushed coal sample to the detection position of the coal quality analyzer 5.

[0054] 7. Detection: The coal quality analyzer 5 detects the crushed coal sample and determines the quality indicators of the coal sample, such as moisture, ash content, calorific value, etc.

[0055] 8. Waste transportation: After the detection, the coal sample is transported to the beam plate 11 through the second conveyor belt 7 for sorting, and the sorted coal sample is transported to the waste barrel 81 through the third conveyor belt 8 for processing.

[0056] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0057] The above is a relatively specific and detailed description of the present application through general description and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not deviate from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A coal quality analysis system, characterized in that: The invention comprises a main frame, a first conveyor belt connected to the main frame and used for conveying coal samples, a crusher connected to the main frame and used for crushing coal samples, an inclined belt conveyor connected to the main frame and used for conveying the coal samples from the first conveyor belt to the crusher, a coal quality analyzer connected to the main frame and used for detecting the coal quality of the coal samples, and a chain bucket elevator connected to the main frame and used for lifting the coal samples crushed by the crusher to the coal quality analyzer. The first conveyor belt, the inclined belt conveyor, the crusher, the chain bucket elevator and the coal quality analyzer are arranged in sequence along the detection and conveying direction of the coal samples.

2. The coal quality analysis system according to claim 1, characterized in that: The main frame is also connected to a second conveyor belt for transporting coal samples crushed and transported from the crusher by the chain bucket elevator. The coal quality analyzer is used to detect the coal samples transported on the second conveyor belt. The end of the second conveyor belt away from the chain bucket elevator is connected to a third conveyor belt for transferring the coal samples on the second conveyor belt to a waste bucket.

3. The coal quality analysis system according to claim 2, characterized in that: The main frame is also connected to a screening assembly located between the inclined belt conveyor and the crusher. The discharge port of the inclined belt conveyor close to one end of the crusher is higher than the feed port of the crusher. The screening assembly includes a plurality of transmission rollers rotatably connected to the main frame. There is a screening gap between adjacent transmission rollers to allow some small-size coal samples of the inclined belt conveyor to fall into the crusher.

4. The coal quality analysis system according to claim 3, characterized in that: The third conveyor belt is located at the bottom of the second conveyor belt, and the coal samples on the second conveyor belt are transmitted to the third conveyor belt through a conveying pipe. The third conveyor belt is at the same level as the screening assembly, and the multiple transmission rollers of the screening assembly are located at one end of the third conveyor belt away from the conveying pipe. The waste bucket is located at one end of the third conveyor belt away from the screening assembly.

5. The coal quality analysis system according to claim 4, characterized in that: The feeding port of the inclined belt conveyor is connected to the middle of the first conveyor belt, and both ends of the first conveyor belt are respectively connected to fourth conveyor belts for collecting coal samples collected by the automobile sampling machine.

6. The coal quality analysis system according to claim 2, characterized in that: The main frame is also connected to a beam plate located between the coal quality analyzer and the discharge port of the chain bucket elevator, and a beam gap for adjusting the coal sample is formed between the beam plate and the second conveyor belt to adjust the material flow height of the coal sample on the second conveyor belt.

7. The coal quality analysis system according to claim 1, characterized in that: The main frame is a steel frame structure connected to the ground concrete structure.

8. The coal quality analysis system according to claim 5, characterized in that: The outer sides of the first conveyor belt, the second conveyor belt, the third conveyor belt and the fourth conveyor belt are all provided with a sealing protective shell connected to the main frame.

Images