Device for measuring coal firmness coefficient

Abstract

The invention belongs to the technical field of coal detection, and discloses a device for measuring the firmness coefficient of coal, which comprises an integral support, the inner wall of the integral support is fixedly connected with a cylinder support, and the cylinder support is fixedly connected with a cylinder. According to the device for measuring the coal firmness coefficient, coal samples crushed by the crushing mortar can be classified and screened through the multi-layer sieve, pulverized coal with different particle sizes can be effectively separated through the multi-layer sieve, the firmness coefficient of the pulverized coal with different particle sizes can be subsequently and specifically analyzed, and the meticulous degree and the accuracy of a measurement result are improved. The vibration motor is installed at the bottom end of the multi-layer sieve, continuous and stable vibration force can be provided in the coal sample screening process, coal samples are screened more sufficiently and evenly, the screening efficiency and effect are further improved, the bottom end of the material collecting hopper corresponds to the top end of the pulverized coal container in position, and a low-light distance measuring sensor is matched, so that the screening efficiency is improved. And collection and metering of the pulverized coal can be accurately controlled.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal detection, and particularly relates to a device for measuring the coal firmness coefficient. Background Art

[0002] Coal is an important energy resource and plays a key role in industrial production and energy supply. The coal firmness coefficient is an important index for measuring coal quality characteristics, and it has important significance for aspects such as coal mining, transportation, storage, and combustion utilization.

[0003] Traditional methods for measuring the coal firmness coefficient are often complex in operation, low in efficiency, and poor in accuracy. For example, some early methods require manual and cumbersome pretreatment work such as sampling, crushing, and screening, and then determine the coal firmness coefficient through complex experimental devices and calculation processes. However, these methods have the following problems:

[0004] 1) Complex in operation, consuming a large amount of manpower and time;

[0005] 2) Due to human factors and limitations of experimental conditions, the error of measurement results is large;

[0006] 3) Some existing automated measurement devices are complex in structure, high in cost, and difficult to maintain, and it is difficult to meet the requirements for rapid and accurate measurement of the coal firmness coefficient in actual production. Summary of the Invention

[0007] Based on the above deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a device for measuring the coal firmness coefficient, which has the advantages of being able to perform automated detection, reducing errors caused by manual operation, and significantly improving the measurement accuracy.

[0008] To solve the above technical problem, the present invention is realized through the following technical solutions: The present invention provides a device for measuring the coal firmness coefficient, including an overall bracket. The inner wall of the overall bracket is fixedly connected with a cylinder bracket. A cylinder is fixedly connected to the cylinder bracket. A weight is arranged inside the cylinder. The inner top wall of the overall bracket is fixedly connected with a clutch. A flywheel is fixedly installed on the clutch. A steel wire rope is wound on the flywheel. The bottom end of the steel wire rope is connected to the weight inside the cylinder. A feeding funnel is fixedly connected to the side of the cylinder. The opening of the feeding funnel extends to the surface of the side wall of the overall bracket. The inner wall of the overall bracket is fixedly connected with a connecting rod bracket. One end of the connecting rod bracket is rotatably connected with a connecting rod. The bottom end of the connecting rod is fixedly connected with a crushing mortar. A multi-layer sieve is arranged directly below the cylinder. The crushing mortar is located at the top of the multi-layer sieve. A pulverized coal container is arranged at the bottom of the overall bracket. An aggregate funnel is arranged at the top of the pulverized coal container. A low-light distance measuring sensor is arranged directly above the aggregate funnel.

[0009] Furthermore, the connecting rod bracket is arranged in an L shape, and a push rod bracket is arranged directly above the connecting rod bracket. The push rod bracket is fixedly connected to the inner wall of the overall bracket. One end of the push rod bracket is rotatably connected to an electric push rod, and the bottom end of the electric push rod is rotatably connected to the top end of the connecting rod.

[0010] Optionally, one side of the bottom end of the cylinder body is fixedly connected to a lock block bracket. The lower surface of the lock block bracket is fixedly installed with a lock block. One end of the crushing mortar is provided with a card slot, and the model specifications of the lock block are matched with it.

[0011] Optionally, the aggregate hopper is located at the discharge port of the multi-layer sieve. The bottom end of the aggregate hopper corresponds to the top end of the pulverized coal container. Pulverized coal is loaded inside the pulverized coal container. The low-light distance measuring sensor, the aggregate hopper and the pulverized coal container are located on the same central axis.

[0012] Furthermore, a vibration motor is fixedly installed at the bottom end of the multi-layer sieve.

[0013] Furthermore, an anti-overwinding photoelectric sensor is fixedly installed on the inner wall of the overall bracket. The anti-overwinding photoelectric sensor is located on one side of the bottom end of the flywheel.

[0014] Thus, the device for measuring the coal hardness coefficient provided by the present invention has the following beneficial effects:

[0015] 1. For this device for measuring the coal hardness coefficient, the multi-layer sieve can classify and screen the coal samples after being crushed by the crushing mortar. Pulverized coal with different particle sizes can be effectively separated by the multi-layer sieve, which is convenient for subsequent targeted analysis of the hardness coefficients of pulverized coal with different particle sizes, and improves the detail and accuracy of the measurement results.

[0016] 2. The vibration motor is installed at the bottom end of the multi-layer sieve, which can provide continuous and stable vibration force during the screening process of coal samples, making the screening of coal samples more sufficient and uniform, and further improving the screening efficiency and effect. The aggregate hopper is located at the discharge port of the multi-layer sieve, and its bottom end corresponds to the top end of the pulverized coal container. Cooperating with the low-light distance measuring sensor, it can accurately control the collection and measurement of pulverized coal. When the pulverized coal is screened by the multi-layer sieve, it can accurately fall into the pulverized coal container through the aggregate hopper. The low-light distance measuring sensor real-time monitors parameters such as the falling distance of the pulverized coal, providing accurate data support for subsequent calculation of the coal hardness coefficient, greatly improving the measurement accuracy and reliability. The electric push rod can accurately control the up and down movement of the crushing mortar through the connecting rod, thereby realizing precise control of the crushing force and crushing time of the coal sample.

[0017] III. Compared with traditional manual or simple mechanical control methods, this structure can apply the crushing force more evenly and stably, avoiding the problem of uneven crushing caused by unstable manual operation or mechanical transmission. Furthermore, it improves the effect and consistency of coal sample crushing. The setting of the clutch can flexibly control the power transmission according to actual needs. When it is necessary to drive the heavy hammer to crush the coal sample, the clutch engages, and the flywheel drives the heavy hammer to rise through the steel wire rope to store energy. When the heavy hammer is released, the clutch can adjust the state of power transmission as needed to achieve precise control of the falling speed and impact force of the heavy hammer.

[0018] IV. The present invention can not only improve the stability and controllability of the crushing process, reduce energy waste, but also flexibly adjust the crushing parameters according to different coal sample characteristics and measurement requirements. The anti-overwinding optoelectronic sensor fixedly installed on the inner wall of the overall support is located on one side of the bottom end of the flywheel and can monitor the position information of the heavy hammer in real time during the rising process of the heavy hammer. When the heavy hammer rises to the limit position or overwinds in case of abnormal conditions, the anti-overwinding optoelectronic sensor can promptly send a signal and control the relevant components to stop running, effectively preventing damage to the device caused by the overwinding of the heavy hammer and protecting the safe operation of the equipment.

[0019] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following is a detailed description in conjunction with the preferred embodiments and with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0021] Figure 1 It is a schematic diagram of the overall structure of the device for measuring the coal hardness coefficient of the present invention;

[0022] Figure 2 It is a schematic diagram of the clamping state structure of the lock block and the crushing mortar of the present invention.

[0023] In the figure:

[0024] 1. Overall support; 2. Clutch; 3. Flywheel; 4. Steel wire rope; 5. Cylinder; 6. Cylinder support; 7. Feeding funnel; 8. Anti-overwinding optoelectronic sensor; 9. Low-light distance measuring sensor; 10. Lock block support; 11. Lock block; 12. Aggregate funnel; 13. Coal powder container; 14. Coal powder; 15. Vibration motor; 16. Multi-layer sieve; 17. Crushing mortar; 18. Connecting rod; 19. Connecting rod support; 20. Electric push rod; 21. Push rod support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. As part of this specification, the principles of the present invention are illustrated through examples. Other aspects, features, and advantages of the present invention will become apparent through this detailed description. In the accompanying drawings referred to, the same or similar components in different figures are denoted by the same reference numerals.

[0026] As Figure 1 and Figure 2 shown, the device for measuring the coal firmness coefficient of the present invention includes an overall bracket 1. The inner wall of the overall bracket 1 is fixedly connected with a cylinder bracket 6. A cylinder 5 is fixedly connected to the cylinder bracket 6. A weight is arranged inside the cylinder 5. The inner top wall of the overall bracket 1 is fixedly connected with a clutch 2. A flywheel 3 is fixedly installed on the clutch 2. A steel wire rope 4 is wound on the flywheel 3. The bottom end of the steel wire rope 4 is connected to the weight inside the cylinder 5. A feeding funnel 7 is fixedly connected to the side of the cylinder 5. The opening of the feeding funnel 7 extends to the surface of the side wall of the overall bracket 1. The inner wall of the overall bracket 1 is fixedly connected with a connecting rod bracket 19. One end of the connecting rod bracket 19 is rotatably connected with a connecting rod 18. The bottom end of the connecting rod 18 is fixedly connected with a crushing mortar 17. A multi-layer sieve 16 is arranged directly below the cylinder 5. The crushing mortar 17 is located at the top of the multi-layer sieve 16. A coal powder container 13 is arranged at the bottom of the overall bracket 1. An aggregate funnel 12 is arranged at the top of the coal powder container 13. A micro-light distance measuring sensor 9 is arranged directly above the aggregate funnel 12. The setting of the clutch 2 can flexibly control the transmission of power according to actual needs. When it is necessary to drive the weight to crush the coal sample, the clutch 2 is engaged, and the flywheel 3 drives the weight to rise through the steel wire rope 4 to store energy. When the weight is released, the clutch 2 can adjust the state of power transmission according to needs to achieve precise control of the falling speed and impact force of the weight. This design can not only improve the stability and controllability of the crushing process, reduce energy waste, but also flexibly adjust the crushing parameters according to different coal sample characteristics and measurement requirements.

[0027] Preferably, the connecting rod bracket 19 is arranged in an L shape. A push rod bracket 21 is arranged directly above the connecting rod bracket 19. The push rod bracket 21 is fixedly connected with the inner wall of the overall bracket 1. One end of the push rod bracket 21 is rotatably connected with an electric push rod 20. The bottom end of the electric push rod 20 is rotatably connected with the top end of the connecting rod 18. The electric push rod 20 can accurately control the up and down movement of the crushing mortar 17 through the connecting rod 18, thereby achieving precise regulation of the crushing force and crushing time of the coal sample. Compared with traditional manual or simple mechanical control methods, this structure can apply the crushing force more evenly and stably, avoiding the problem of uneven crushing caused by manual operation or unstable mechanical transmission, and thus improving the crushing effect and consistency of the coal sample.

[0028] One side of the bottom end of the cylinder body 5 is fixedly connected with a lock block bracket 10, and a lock block 11 is fixedly installed on the lower surface of the lock block bracket 10. One end of the crushing mortar 17 is provided with a clamping groove, and the model specifications of the clamping groove are matched with those of the lock block 11.

[0029] Preferably, the aggregate hopper 12 is located at the discharge port of the multi-layer sieve 16. The bottom end of the aggregate hopper 12 corresponds to the top end of the pulverized coal container 13. Pulverized coal 14 is loaded inside the pulverized coal container 13. The low-light distance measuring sensor 9, the aggregate hopper 12 and the pulverized coal container 13 are located on the same central axis. Cooperating with the low-light distance measuring sensor 9, the collection and metering of pulverized coal can be accurately controlled. When the pulverized coal is screened by the multi-layer sieve 16, it can accurately fall into the pulverized coal container 13 through the aggregate hopper 12. The low-light distance measuring sensor 9 real-time monitors parameters such as the falling distance of the pulverized coal, providing accurate data support for calculating the hardness coefficient of coal subsequently, and greatly improving the accuracy and reliability of the measurement.

[0030] A vibration motor 15 is fixedly installed at the bottom end of the multi-layer sieve 16. The multi-layer sieve 16 can classify and screen the coal samples crushed by the crushing mortar 17. Pulverized coal with different particle sizes can be effectively separated by the multi-layer sieve 16, facilitating the subsequent targeted analysis of the hardness coefficients of pulverized coal with different particle sizes, and improving the detail and accuracy of the measurement results. At the same time, the vibration motor 15 is installed at the bottom end of the multi-layer sieve 16, and can provide continuous and stable vibration force during the screening process of the coal samples, making the screening of the coal samples more sufficient and uniform, and further improving the screening efficiency and effect.

[0031] Preferably, an anti-overwinding optoelectronic sensor 8 is fixedly installed on the inner wall of the overall support 1. The anti-overwinding optoelectronic sensor 8 is located on one side of the bottom end of the flywheel 3. It can real-time monitor the position information of the counterweight during the ascending process. When the counterweight ascends to the limit position or overwinding occurs due to abnormal conditions, the anti-overwinding optoelectronic sensor 8 can timely send out a signal and control the relevant components to stop running, effectively preventing the damage to the device caused by the overwinding of the counterweight and protecting the safe operation of the equipment.

[0032] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0033] In the present invention, unless otherwise clearly stipulated and defined, the terms "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above is only the preferred embodiment of the present invention, and of course, the scope of the rights of the present invention cannot be limited thereby. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and changes can still be made, and these improvements and changes are also regarded as the protection scope of the present invention.

Claims

1. A device for measuring the solidity coefficient of coal, comprising an integral support (1), characterized in that: The inner wall of the integral support (1) is fixedly connected to a cylinder support (6), the cylinder support (6) is fixedly connected to a cylinder (5), and a weight is arranged inside the cylinder (5); The inner top wall of the integral support (1) is fixedly connected to a clutch (2), a flywheel (3) is fixedly mounted on the clutch (2), a steel wire rope (4) is wound on the flywheel (3), the bottom end of the steel wire rope (4) is connected to a weight inside a cylinder (5), a discharge hopper (7) is fixedly connected to the side of the cylinder (5), and the opening of the discharge hopper (7) extends to the surface of the side wall of the integral support (1); The inner wall of the integral bracket (1) is fixedly connected to a connecting rod bracket (19), one end of the connecting rod bracket (19) is rotatably connected to a connecting rod (18), the bottom end of the connecting rod (18) is fixedly connected to a crushing mortar (17), a multi-layer sieve (16) is arranged directly below the cylinder (5), and the crushing mortar (17) is located at the top of the multi-layer sieve (16); A coal powder container (13) is arranged at the bottom of the integral support (1), a material collection funnel (12) is arranged at the top of the coal powder container (13), and a low-light ranging sensor (9) is arranged directly above the material collection funnel (12).

2. The device for measuring the coal solidity coefficient according to claim 1, characterized in that: The connecting rod bracket (19) is arranged in an L shape, and a push rod bracket (21) is arranged directly above the connecting rod bracket (19). The push rod bracket (21) is fixedly connected to the inner wall of the integral bracket (1), and one end of the push rod bracket (21) is rotatably connected to an electric push rod (20), and the bottom end of the electric push rod (20) is rotatably connected to the top end of the connecting rod (18).

3. The device for measuring the coal solidity coefficient according to claim 1, characterized in that: A locking block bracket (10) is fixedly connected to one side of the bottom end of the cylinder (5), a locking block (11) is fixedly mounted on the lower surface of the locking block bracket (10), and a slot is provided at one end of the crushing mortar (17), which matches the model and specification of the locking block (11).

4. The device for measuring the coal solidity coefficient according to claim 1, characterized in that: The aggregate hopper (12) is located at the discharge port of the multi-layer sieve (16), the bottom end of the aggregate hopper (12) corresponds to the top end of the coal powder container (13), the coal powder container (13) is loaded with coal powder (14), and the low-light ranging sensor (9), the aggregate hopper (12) and the coal powder container (13) are located on the same central axis.

5. The device for measuring the coal solidity coefficient according to claim 1, characterized in that: A vibration motor (15) is fixedly mounted on the bottom end of the multi-layer sieve (16).

6. The device for measuring the coal solidity coefficient according to claim 1, characterized in that: An anti-overwinding photoelectric sensor (8) is fixedly mounted on the inner wall of the integral bracket (1), and the anti-overwinding photoelectric sensor (8) is located on one side of the bottom end of the flywheel (3).

Images