LU502907B1

LU502907B1 - Coal and Waste Rock Separation Device for Thermal Power Generation

Info

Publication number: LU502907B1
Application number: LU502907A
Authority: LU
Inventors: Haihong You; Shurong Xiang; Ming Li; Lingfei An; Yajun Luo; xuan Pei; Hongfei Chang
Original assignee: Inner Mongolia Shangdu Power Generation Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-04-18

Abstract

The invention relates to the technical field of separation of coal and waste rock, in particular to a coal and waste rock separation device for thermal power generation, which comprises a sorting box, a protective plate close to the bottom and fixedly sleeved in the inner chamber of the sorting box, an air supply pipe fixedly sleeved on the bottom of the sorting box, an air pressure box movably installed on the bottom of the sorting box, and a blocking ring on the top surface of the air pressure box and extending upward to the inside of the sorting box. The protective plate fixed at the position near the bottom of the inner chamber of the sorting box protects the air supply pipe below, so as to prevent the waste rock and coal from blocking the air supply pipe. With the air pressure box and air pump, when in use, the air supply pipe is controlled to send the air to the inner chamber of the sorting box in one direction.

Description

Specification

Coal and Waste Rock Separation Device for Thermal Power Generation

Technical Field

The invention relates to the technical field of separation of coal and waste rock, in particular to a coal and waste rock separation device for thermal power generation

Background Art

In thermal power generation, power generation devices are used to convert the heat energy generated during combustion of combustibles into electrical energy. Coal is mainly composed of such elements as carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus. The total amount of carbon, hydrogen and oxygen accounts for more than 95% of the organic matter. As a very important energy source and an important raw material for metallurgical and chemical industries, coal is classified into lignite, bituminous coal, anthracite and semi-anthracite. Zhu Ziging, a famous writer, once wrote a poem with coal as the title, giving coal a unique symbolic meaning.

Coal is the main raw material for thermal power generation. As a non-renewable energy, coal is usually obtained by mining. During the internal mining of the coal mine, the coal and waste rock are mined to the outside together. Pure coal is required in the combustion process. Because combustion of the coal mine with more impurities will reduce the power generation efficiency, it is necessary to separate the coal from the waste rock. The traditional manual sorting method consumes a lot of manpower. In addition, a large number of large particles of smoke and dust float in the working environment of workers, which can cause irreversible damage to the respiratory tract of workers after long-time inhalation of them. However, in the way of radiation detection combined with high-pressure air separation, the small waste rock in large stone cannot be thoroughly separated from coal. To solve the above problems, the invention provides a coal and waste rock separation device for thermal power generation.

Content of Invention

To solve the above problems, the invention provides a coal and waste rock 1 separation device for thermal power generation. LU502907

For the purpose above, the invention adopts the following technical solution: a coal and waste rock separation device for thermal power generation, which comprises a sorting box, a protective plate close to the bottom and fixedly sleeved in the inner chamber of the sorting box, an air supply pipe fixedly sleeved on the bottom of the sorting box, an air pressure box movably installed on the bottom of the sorting box, and a blocking ring on the top surface of the air pressure box and extending upward to the inside of the sorting box. A fixed support block is fixedly installed near the lower part of the front and rear sides of the sorting box, a support spring is fixedly connected to the inner side of the fixed support block, a movable support block is fixedly installed on the inner side of the support spring, and an air pump is fixedly installed on the right side of the sorting box. À support plate is fixedly sleeved at the position close to the top in the inner chamber of the air supply pipe, and a blocking ring is fixedly sleeved at the position close to the bottom in the inner chamber of the air supply pipe. À blocking spring is fixedly connected with the bottom of the support plate, and blocking plates are fixedly arranged at the bottom end of the blocking spring.

Optionally, a discharge expansion column is fixedly arranged on the front and rear walls of the inner chamber of the sorting box, a support bracket is fixedly arranged at the top end of the output shaft of the discharge expansion column, support rods are fixedly arranged at the bottom ends of both sides of the support bracket, two rotating sleeves are respectively movably sleeved on the outer side of each of the support rod and close to the top of each support rod, blocking plates are fixedly arranged at the inner side of the rotating sleeve, a close-open expansion column is fixedly arranged at the left and right surfaces of the inner chamber of the sorting box, and a stop block is fixedly arranged at the top end of the output shaft of the close-open expansion column.

Optionally, a blocking block is fixedly sleeved on the back of the sorting box, a threaded column is movably sleeved in the inner chamber of the blocking block, a push plate is fixedly connected with the inner side of the threaded column, a sealing plug is movably sleeved in front of the sorting box, a connecting plate is fixedly arranged in front of the sealing plug, an electromagnetic block is fixedly arranged at the position of the left and right sides of the sorting box and near the front, and a limit rod is connected to the back of the connecting plate.

Optionally, the inner chamber of the air supply pipe and the inner chamber 2 of the sorting box are interconnected, the air pressure box is located outside the | y502907 air supply pipe, and the bottom surface of the inner chamber of the air pressure box is located below the bottom surface of the air supply pipe.

Optionally, the output shaft of the air pump extends leftward to the inner chamber of the air pressure box, and the inner side of the movable support block is located below the front and rear sides of the air pressure box to support the air pressure box.

Optionally, the output shaft of the discharge expansion column is located above the sorting box, and the height of the support bracket is less than the one of the discharge expansion column.

Optionally, the outer sides of the support rods are bonded with the left and right walls of the inner chamber of the sorting box, the inner sides of the two blocking plates are bonded, and the inner side width of the stop block is greater than the width of the support rods.

Optionally, the front and back of the sorting box are respectively provided with a rectangular groove adaptive with the sealing plug and the blocking block, and the bottom surface of the push plate is bonded with the top surface of the protective plate.

The coal and waste rock separation device for thermal power generation of the invention has the following advantages: 1. The protective plate fixed at the position near the bottom of the inner chamber of the sorting box protects the air supply pipe below, so as to prevent the waste rock and coal from blocking the air supply pipe. With the air pressure box and air pump, when in use, the air supply pipe is controlled to send the air to the inner chamber of the sorting box in one direction. Subsequently, because the densities of coal and waste rock are different and their buoyancies in water are different, coal and waste rock are separated. The invention conveniently separates waste rock and coal. In addition, some impurities in the coal after washing are removed. 2. For the coal and waste rock separation device for thermal power generation of the invention, the discharge expansion column is fixed at the position near the front and rear of the inner chamber of the sorting box, the support bracket is connected to the top of the output shaft of the discharge expansion column, and the two support rods in the inner chamber of the sorting 3 box are controlled to ascend and descend. In addition, the rotating sleeves are | 502907 movably sleeved outside the support rods to conveniently control the blocking plates to rotate, and facilitate the blocking plates to block the coal rushing to the top. When air is not supplied, small pieces of waste rock fall through the blocking plates to improve the separation efficiency. 3. For the coal and waste rock separation device for thermal power generation of the invention, the blocking block is fixedly arranged at the back of the sorting box, the threaded column is movably sleeved inside the blocking block, and the push plate is movably connected with the inner side of the threaded column, so that the waste rock in the inner chamber of the sorting box and above the protective plate can be conveniently pushed forward. The sealing plug is movably sleeved on the front side of the sorting box, and the connecting plate is arranged in front of the sealing plug. The electromagnetic block is fixedly arranged at the position near the left and right sides of the sorting box. The limit rod cooperates with the push plate to conveniently push the waste rock outside of the sorting box.

Figures

The following briefly introduces the drawings for describing the embodiments, so as to more clearly explain the technical solution in the embodiments of the invention. Obviously, the drawings in the following description are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

Fig.1 shows the structure of the invention;

Fig.2 shows the slicing structure of the invention;

Fig.3 shows the structure of the air pressure box of the invention;

Fig.4 shows the structure of the air supply pipe of the invention;

Fig.5 shows the structure of the blocking plates of the invention;

Fig.6 shows the structure of the push plate of the invention.

Wherein, 1. sorting box; 2. protective plate; 3. air supply pipe; 4. air pressure box; 5. fixed support block; 6. support spring; 7. movable support block; 8. air pump; 9. support plate; 10.blocking spring; 11. blocking plate; 12. blocking ring; 13. discharge expansion column; 14. support bracket; 15. support rod; 16. rotating sleeve; 17. blocking plate; 18. close-open expansion column; 19. stop block; 20. blocking 4 block; 21. threaded column; 22. push plate; 23. connecting plate; 24. sealing plug; 25. | 1502907 electromagnetic block; 26. limit rod.

Description of Preferred Embodiments

The technical solution in the embodiments of the invention is described clearly and completely below in combination with the drawings in the embodiments of the invention. Obviously, the described embodiments are only part but not all of the embodiments of the invention. Based on the embodiments in the invention, any other embodiment obtained by any ordinary technician in the art without any creative work shall belong to the scope of protection of the invention.

Please refer to Fig.1 to Fig.4, the invention provides a technical solution as follows: a coal and waste rock separation device for thermal power generation comprises a sorting box 1, a protective plate 2 close to the bottom and fixedly sleeved in the inner chamber of the sorting box 1, an air supply pipe 3 fixedly sleeved on the bottom of the sorting box 1, and an air pressure box 4 outside the air supply pipe 3. The inner chamber of the air supply pipe 3 and the inner chamber of the sorting box 1 are mutually connected, and the bottom surface of the inner chamber of the air pressure box 4 is below the bottom surface of the air supply pipe 3. The protective plate 2 protects the air supply pipe 3 at the bottom of the sorting box 1, preventing the falling waste rock and coal from damaging the air supply pipe 3. The protective plate 2 separates the air bubbles sent by the air supply pipe 3 to the upper part, and cuts the large air bubbles to prevent the waste rock and coal from blocking the air supply pipe 3 and affecting the normal exhaust of the air supply pipe 3. In addition, the air pressure box 4 is arranged below the sorting box 1 to protect the air supply pipe 3 and collects air, so that the inner chamber of the air pressure box 4 is at a high air pressure. The air pressure box 4 is movably arranged on the bottom surface of the sorting box 1, and the blocking ring on the top surface of the air pressure box 4 extends upward into the sorting box 1. The front and rear sides of the sorting box 1 are fixedly provided with a fixed support block 5 near the bottom, a support spring 6 is fixedly connected to the inner side of the fixed support block 5, a movable support block 7 is fixedly arranged on the inner side of the support spring 6, and the output shaft of the air pump 8 extends leftward to the inner chamber of the air pressure box 4, The inner side of the movable support block 7 is located below the front and rear sides of the air pressure tank 4 to support the air pressure box 4.

After long-time use, the water with large dust content accumulates inside the air pressure box 4. When pulled outward, the movable support block 7 compresses the support spring 6, so as to separate the movable support block 7 from the air | 502907 pressure box 4, separate the sealing plug on the top of the air pressure box 4 from the sorting box 1, separate the sorting box 1 from the air pressure box 4, and clean the air pressure box 4 to facilitate the use of the device. An air pump 8 is fixedly installed on the right side of the sorting box 1. A support plate 9 is fixedly sleeved at the position close to the top in the inner chamber of the air supply pipe 3, and a blocking ring 12 is fixedly sleeved at the position close to the bottom in the inner chamber of the air supply pipe 3. A blocking spring 10 is fixedly connected with the bottom of the support plate 3, and blocking plates 11 are fixedly arranged at the bottom end of the blocking spring 10. The air pump 8 delivers air outside to the inner chamber of the air pressure box 4. When the air pressure in the inner chamber of the air pressure box 4 is relatively high, the air pressure in the inner chamber of the air pressure box 4 pushes the blocking plate 11 to move upward, compress the blocking spring 10, and send the air pressure to the inner chamber of the sorting box 1 through the gap between the blocking plate 11 and the blocking ring 12. In this way, the air is continuously transported upward from the bottom of the sorting box 1, so that the bubbles are broken when passing the protective plate 2, and then move upward. The upward moving bubbles push up the lighter coal and small pieces of waste rock to facilitate the separation of waste rock and coal.

Please refer to Fig.5, a discharge expansion column 13 is fixedly arranged on the front and rear walls of the inner chamber of the sorting box 1, the output shaft of the discharge expansion column 13 is located above the sorting box 1, and the height of the support bracketl4 is less than that of the discharge expansion column 13. The support bracket 14 is used to connect the support rod with the discharge expansion column 13. When used, the discharge expansion column 13 controls the lifting of the support rod 15, so as to take out the coal from above, facilitating the use of the device. The discharge expansion column 13 controls the lifting of the support bracket 14 and the support rod 15 to take out the coal above the blocking plate 17. The support bracket 14 is fixedly arranged on the top of the output shaft of the discharge expansion column 13, and the bottom ends on both sides of the support bracket 14 are fixedly provided with the support rod 15. The outer side of the support rod 15 fits with the left and right walls of the inner chamber of the sorting box 1. The inner sides of the two blocking plates 17 fit together, and the inner width of the stop block 19 is greater than that of the support rod 15. The support rod 15 supports the blocking plates 17, and the width of the support rod 15 is greater than the width of the rotating 6 sleeve 16. After the stop block 19 and the blocking plates 17 are separated, the | j502907 blocking plates 17 rotate around the axis of the rotating sleeve 16, and then fall above the support rod 15. The support rod 15 supports the blocking plates 17, so that the two blocking plates 17 can block the inner chamber of the sorting box 1 to facilitate the use of the device. The rotating sleeve 16 is movably sleeved on the outer side near the top of the support rod 15. The blocking plates 17 are fixedly arranged on the inner side of the rotating sleeve 16. The left and right sides of the inner chamber of the sorting box 1 are fixedly provided with the close-open expansion column 18, and the top end of the output shaft of the close-open expansion column 18 is fixedly provided with a stop block 19, which controls the retraction of the output shaft of the close-open expansion column 18.

The output shaft of the close-open expansion column 18 drives the stop block 19 to move downward, so that the top surface of the stop block19 moves below the support rod 15. Then the two blocking plates 17 are no longer blocked by the stop block 19, but rotate around the internal support shaft of the support rod 15 under the action of the rotating sleeve 16, and then rotate from the vertical state to the horizontal state. The blocking plates 17 are used to block the inner chamber of the sorting box 1. The close-open expansion column 18 and the stop block 19 cooperatively control the blocking plates 17 to block the sorting box 1.

Please refer to Fig. 6, the blocking block 20 is fixedly sleeved at the rear of the sorting box 1, the threaded column 21 is movably sleeved in the inner chamber of the blocking block 20, the push plate 22 is movably connected to the inner side of the threaded column 21, the rectangular grooves adaptive to the sealing plug 24 and the blocking block 20 are respectively arranged at the front and rear of the sorting box 1, and the bottom surface of the push plate 22 is closely aligned with the top surface of the protective plate 2. After use, the threaded column 21 rotates to push the push plate 22 forward, and then the push plate 22 pushes the waste rock forward, so that the accumulated waste rock is discharged from the front of the sorting box 1 conveniently. The blocking block blocks the rear of the sorting box 1 while supporting the threaded column 21.

The front movable sleeve of the sorting box 1 is equipped with a sealing plug 24, the front of the sealing plug 24 is fixedly installed with a connecting plate 23, the left and right sides of the sorting box 1 are fixedly installed with an electromagnetic block 25 near the front, the back of the connecting plate 23 is connected with a limit bar 26, and the sealing plug 24 plays the role of blocking 7 the front of the sorting box 1. The electromagnetic block 25 can stably connect | 1502907 the connecting plate 23, so that the connecting plate 23 drives the sealing plug 24 to stably block the front of the sorting box 1, which is convenient for discharging the waste rock in the inner chamber of the sorting box 1 and the use of the device.

A sealing plug 24 is movably sleeved in front of the sorting box 1, a connecting plate 23 is fixedly arranged in front of the sealing plug 24, an electromagnetic block 25 is fixedly arranged at the position of the left and right sides of the sorting box 1 and near the front, and a limit rod 26 is connected to the back of the connecting plate 23. The sealing plug 24 blocks the front of the sorting box 1.

The electromagnetic block 25 can stably connect the connecting plate 23, so that the connecting plate 23 drives the sealing plug 24 to stably block the front of the sorting box 1, which is convenient for discharging the waste rock in the inner chamber of the sorting box 1 and the use of the device.

To sum up, the invention provides a coal and waste rock separation device for thermal power generation. When in use, the mixture of waste rock and coal is first put into the inner chamber of the sorting box 1 from the top of the sorting box 1, and then the waste rock and coal fall above the protective plate 2; at the same time, clean water is filled into the inner chamber of the sorting box 1, the air pump 8 is started to send the air outside to the inner chamber of the air pressure box 4, so that when the air pressure in the inner chamber of the air pressure box 4 is relatively high, the air pressure in the inner chamber of the air pressure box 4 pushes the blocking plates 11 to move upward and compress the blocking spring 10, so that the air pressure is sent to the inner chamber of the sorting box 1 through the gap between the blocking plates 11 and the blocking ring 12, and then the air is continuously transported upward from the bottom of the sorting box 1; the bubbles are broken when passing the protective plate 2, and then move upward, and the upward moving bubbles push up the lighter coal and small pieces of waste rock, so that the coal and light waste rock move to the upper position of the inner chamber of the sorting box 1; then the output shaft of the close-open expansion column 18 retracts, and drives the stop block 19 to move downward, making the top surface of the stop block 19 move below the support rod 15; then the two blocking plates 17 are no longer blocked by the stop block 19, and the blocking plates 17 rotate around the internal support shaft of the support rod 15 under the action of the rotating sleeve 16, so that the two blocking plates 17 can rotate from the vertical state to the horizontal state, and 8 the inner chamber of the sorting box 1 is blocked by the blocking plates 17; then | j502907 the air pump 8 is turned off to stop air supply, so that the blocking spring 10 in the inner chamber of the air supply pipe 3 moves downward to support the blocking plate 11 to block the blocking ring 12, and make the air supply pipe 3 block the bottom of the sorting box 1; then the coal falls above the blocking plates 17, and the waste rock falls above the protective plate 2; at the same time, small pieces of waste rock and coal pass through the blocking plates 17 and fall above the protective plate 2, and pure large pieces of coal remain above the blocking plates 17; then the output shaft of the discharge expansion column 13 is controlled to extend and push the support bracket 14 to move upwards, the support bracket 14 drives the support rod 15 to move upwards to push the rotating sleeve 16 and the blocking plates 17 to move upwards, so that the coal is delivered to the upper part of the sorting box 1; the electromagnetic block 25 is turned off, and the water pressure in the inner chamber of the sorting box 1 pushes the connecting plate 23 and the sealing plug 24 forward to separate the sealing plug 24 from the sorting box 1; then, the threaded column 21 is rotated to make the threaded column 21 move forward in the inner chamber of the blocking block 20, and then the push plate 22 pushes out the waste rock. The process is as above.

At last, it shall be noted that the above embodiments are only used to illustrate but not limit the technical solution of the invention. Although the invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in the art shall still understand that they can modify the technical solution recorded in the aforementioned embodiments, or equivalently replace some of the technical features, and these modifications or replacements shall not make the essence of the corresponding technical solutions away from the spirit and scope of the technical solution of the embodiments of the invention. 9

Claims

Claims LU502907

1. A coal and waste rock separation device for thermal power generation, which is characterized by comprising a sorting box (1), a protective plate (2) close to the bottom and fixedly sleeved in the inner chamber of the sorting box (1), an air supply pipe (3) fixedly sleeved on the bottom of the sorting box (1), an air pressure box (4) movably installed on the bottom of the sorting box (1), and a blocking ring on the top surface of the air pressure box (4) and extending upward to the inside of the sorting box (4), a fixed support block (5) is fixedly installed near the lower part of the front and rear sides of the sorting box (1), a support spring (6) is fixedly connected to the inner side of the fixed support block (5), a movable support block (7) is fixedly installed on the inner side of the support spring (6), and an air pump (8) is fixedly installed on the right side of the sorting box (1), a support plate (9) is fixedly sleeved at the position close to the top in the inner chamber of the air supply pipe (3), and a blocking ring (12) is fixedly sleeved at the position close to the bottom in the inner chamber of the air supply pipe (3), a blocking spring (10) is fixedly connected with the bottom of the support plate (3), and blocking plates (11) are fixedly arranged at the bottom end of the blocking spring (10).

2. The coal and waste rock separation device for thermal power generation according to claim 1, characterized in that a discharge expansion column (13) is fixedly arranged on the front and rear walls of the inner chamber of the sorting box (1), a support bracket (14) is fixedly arranged at the top end of the output shaft of the discharge expansion column (13), support rods (15) are fixedly arranged at the bottom ends of both sides of the support bracket (14), two rotating sleeves (16) are respectively movably sleeved on the outer side of each of the support rod (15) and close to the top of each support rod (15), blocking plates (17) are fixedly arranged at the inner side of the rotating sleeve (16), a close-open expansion column (18) is fixedly arranged at the left and right surfaces of the inner chamber of the sorting box (1), and a stop block (19) is fixedly arranged at the top end of the output shaft of the close-open expansion column (18).

3. The coal and waste rock separation device for thermal power generation | u502907 according to claim 1, characterized in that a blocking block (20) is fixedly sleeved on the back of the sorting box (1), a threaded column (21) is movably sleeved in the inner chamber of the blocking block (20), a push plate (22) is fixedly connected with the inner side of the threaded column (21), a sealing plug (24) is movably sleeved in front of the sorting box (1), a connecting plate (23) is fixedly arranged in front of the sealing plug (24), an electromagnetic block (25) is fixedly arranged at the position of the left and right sides of the sorting box (1) and near the front, and a limit rod (26) is connected to the back of the connecting plate (23).

4. The coal and waste rock separation device for thermal power generation according to claim 1, characterized in that the inner chamber of the air supply pipe (3) and the inner chamber of the sorting box (1) are interconnected, the air pressure box (4) is located outside the air supply pipe (3), and the bottom surface of the inner chamber of the air pressure box (4) is located below the bottom surface of the air supply pipe (3).

5. The coal and waste rock separation device for thermal power generation according to claim 1, characterized in that the output shaft of the air pump (8) extends leftward to the inner chamber of the air pressure box (4), and the inner side of the movable support block (7) is located below the front and rear sides of the air pressure box (4) to support the air pressure box (4).

6. The coal and waste rock separation device for thermal power generation according to claim 2, characterized in that the output shaft of the discharge expansion column (13) is located above the sorting box (1), and the height of the support bracket (14) is less than the one of the discharge expansion column (13).

7. The coal and waste rock separation device for thermal power generation according to claim 2, characterized in that the outer sides of the support rods (15) are bonded with the left and right walls of the inner chamber of the sorting box (1), the inner sides of the two blocking plates (17) are bonded, and the inner side width of the stop block (19) is greater than the width of the support rods (15). 11

8. The coal and waste rock separation device for thermal power generation | 502907 according to claim 3, characterized in that the front and back of the sorting box (1) are respectively provided with a rectangular groove adaptive with the sealing plug (24) and the blocking block (20), and the bottom surface of the push plate (22) is bonded with the top surface of the protective plate (2). 12