Improved coal water slurry storage bin

Abstract

The utility model relates to the technical field of coal water slurry storage, in particular to an improved coal water slurry storage bin which comprises a bin body, a feeding pipe and a discharging pipe are arranged at the upper end and the lower end of the bin body respectively, a transmission mechanism is arranged on the bin body, a motor is further arranged on the bin body, and an output shaft of the motor is connected with a driving gear. One end of a wheel shaft of the second driven wheel extends into the bin body and is provided with a rotating assembly, the wheel shaft of the second driven wheel is sleeved with a connecting sleeve, one end of the connecting sleeve extends into the bin body and is provided with a scraper assembly, and the other end of the connecting sleeve is provided with a scraper assembly. The scraper assembly is in contact with the inner wall of the bin body, and the other end of the connecting sleeve is connected with the gear ring. The movable scraper assembly rotates at a low speed, so that the scraper assembly can conveniently clean the coal water slurry adhered to the inner wall of the bin body, and the coal water slurry is fully stirred and mixed through the rapid rotation of the rotating assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of water coal slurry storage, and particularly relates to an improved water coal slurry storage bin. Background Art

[0002] Water coal slurry is a new type of fluid fuel, 70% of which is composed of high-quality coal. Its main characteristics are as follows: its appearance shows the characteristics of heavy oil, it can be transported and loaded and unloaded through pipeline pumps, and the flow can also be controlled by valves. Water coal slurry is stored in a storage tank before use. The existing storage tanks have the following defects:

[0003] (1) As a solid-liquid mixture, water coal slurry is prone to solid-liquid separation and precipitation in the storage tank, resulting in uneven slurry;

[0004] (2) The viscosity of the water coal slurry in the storage tank increases with the decrease of temperature, and it will adhere to the tank wall, resulting in troublesome cleaning;

[0005] (3) Although the water coal slurry is filtered before entering the storage tank to remove large coal particles, hard lumps, etc., the water coal slurry is prone to hard nodules during long-term storage in the storage tank. Summary of the Utility Model

[0006] In order to solve the problems of how to separate the solid and liquid of water coal slurry, how to avoid adhesion to the tank wall, and how to avoid hard nodules caused by long-term storage, the utility model provides an improved water coal slurry storage bin.

[0007] The technical solution of the utility model is as follows:

[0008] An improved water coal slurry storage bin includes a bin body. Feed pipes and discharge pipes are respectively arranged at the upper and lower ends of the bin body. A transmission mechanism is arranged on the bin body. The transmission mechanism includes a driving gear, a gear ring, a first driven wheel and a second driven wheel that mesh with each other. A motor is also arranged on the bin body. The output shaft of the motor is connected to the driving gear to drive the gear ring, the first driven wheel and the second driven wheel to rotate. One end of the wheel shaft of the second driven wheel extends into the bin body and is provided with a rotating assembly. A connecting sleeve is sleeved on the wheel shaft of the second driven wheel. One end of the connecting sleeve extends into the bin body and is provided with a scraping plate assembly. The scraping plate assembly is in contact with the inner wall of the bin body. The other end of the connecting sleeve is connected to the gear ring. The motor drives the rotating assembly to rotate rapidly and drives the scraping plate assembly to rotate slowly, which is convenient for the scraping plate assembly to clean the water coal slurry adhering to the inner wall of the bin body. The cleaned water coal slurry is rapidly rotated by the rotating assembly and is fully stirred and mixed to avoid stratification of the water coal slurry and adhesion to the inner wall of the bin body.

[0009] Further, the rotating assembly includes a rotating rod and a rotating blade. An embedded heating rod is provided inside the rotating rod. The rotating rod drives the rotating blade to rotate for stirring and mixing the water-coal slurry. The heat provided by the heating rod can make the pulverized coal in the water-coal slurry more easily dispersed and mixed in water, thereby improving the stirring efficiency and ensuring the uniformity and stability of the water-coal slurry.

[0010] Further, two rotating blades are provided and symmetrically distributed on the rotating rod. Uniformly distributed through holes are respectively provided on the rotating blades. The through holes can change the flow mode of the water-coal slurry in the storage bin and reduce the resistance on the surface of the rotating blades.

[0011] Further, the scraping assembly includes a first scraper, a second scraper, and a third scraper arranged in a C-shaped layout. The first scraper contacts the top surface of the inner wall of the bin body, the second scraper contacts the side surface of the inner wall of the bin body, and the third scraper contacts the bottom surface of the inner wall of the bin body. It is convenient to clean the water-coal slurry adhering to the bin wall.

[0012] Further, one end of the first scraper, the second scraper, and the third scraper close to the inner wall of the bin body is a tip structure. The effect of cleaning the water-coal slurry adhering to the bin wall is better.

[0013] Further, a mounting frame is provided on the bin body, and the mounting frame is connected to the first driven wheel. It is convenient to arrange the first driven wheel between the toothed ring and the second driven wheel.

[0014] Further, the connecting sleeve includes a rotating sleeve and an L-shaped connecting rod. The rotating sleeve is sleeved outside the second driven wheel. The outer wall of the rotating sleeve is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the bottom surface of the toothed ring. The rotation of the toothed ring facilitates driving the scraping assembly to rotate slowly through the connecting rod.

[0015] Further, the rotation speed of the toothed ring is different from that of the second driven wheel. The effect of realizing the slow rotation of the scraping assembly and the fast rotation of the rotating assembly is achieved.

[0016] Further, the bin body includes a tank body with an upper opening and a top cover detachably connected to the tank body. Support legs are provided at the bottom of the tank body. It is convenient to disassemble the device for separate maintenance, repair, and cleaning.

[0017] Further, the discharge pipe is inclined and provided on the outer wall of the tank body. The bottom surface of the inner wall of the discharge pipe is flush with the inner bottom surface of the tank body. It is convenient for the water-coal slurry to be smoothly discharged from the storage bin and avoid residue of the water-coal slurry.

[0018] The beneficial effects of the present utility model are as follows:

[0019] (1): The structure of the utility model is simple. The scraper assembly connected to the gear ring can rotate slowly to clean the inner wall of the bin, while the rotating assembly connected to the second driven wheel rotates quickly to rapidly stir and mix the water-coal slurry scraped by the scraper assembly, avoiding the stratification of the water-coal slurry and its adhesion to the inner wall of the bin when it is placed in the bin for a long time.

[0020] (2): Through holes are provided on the rotating plate of this device. Therefore, when the rotating plate rotates quickly, it can change the flow mode of the water-coal slurry in the storage bin, reduce the resistance on the surface of the rotating plate, make the mixing of the water-coal slurry more sufficient, reduce the agglomeration and caking of the water-coal slurry, and reduce the shear force of the rotating plate, avoiding damage caused by motor overload.

[0021] (3): One ends of the first scraper, the second scraper and the third scraper close to the inner wall of the bin are all tip structures, which can reduce the friction with the inner wall of the bin, more easily scrape off the materials attached to the inner wall, reduce the accumulation of residues, and keep the surface of the equipment clean.

[0022] (4): There is a rotational speed difference between the scraper assembly and the rotating assembly of this device. Due to the rotational speed difference, the slow rotation of the scraper assembly and the fast rotation of the rotating assembly can improve the mixing uniformity of the water-coal slurry, reduce energy consumption, reduce the agglomeration of coal powder, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiments below, the solutions and advantages of the present application will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the utility model.

[0024] In the drawings:

[0025] Figure 1 is the overall structural schematic diagram of the utility model;

[0026] Figure 2 is the internal structural schematic diagram of the utility model.

[0027] The components represented by the reference numerals in the drawings are:

[0028] 1, tank body; 2, top cover; 3, support leg; 4, discharge pipe; 5, feed pipe; 6, motor; 7, driving gear; 8, gear ring; 9, first driven wheel; 10, second driven wheel; 11, rotating rod; 12, heating rod; 13, connecting sleeve; 14, scraper assembly; 15, mounting frame; 16, rotating plate; 17, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The exemplary embodiments of the present disclosure will be described in more detail below in conjunction with the accompanying drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. The present disclosure can be implemented in various forms and should not be limited by the embodiments described herein.

[0030] Embodiment

[0031] This embodiment provides an improved water coal slurry storage bin. Refer to Figure 1 - Figure 2 , including a bin body. The upper and lower ends of the bin body are respectively provided with a feed pipe 5 and a discharge pipe 4. A transmission mechanism is provided on the bin body. The transmission mechanism includes a driving gear 7, a gear ring 8, a first driven gear 9, and a second driven gear 10 that mesh with each other. A motor 6 is also provided on the bin body. The output shaft of the motor 6 is connected to the driving gear 7 to drive the gear ring 8, the first driven gear 9, and the second driven gear 10 to rotate. One end of the axle of the second driven gear 10 extends into the bin body and is provided with a rotating assembly. A connecting sleeve 13 is sleeved on the axle of the second driven gear 10. One end of the connecting sleeve 13 extends into the bin body and is provided with a scraping plate assembly 14. The scraping plate assembly 14 is in contact with the inner wall of the bin body. The other end of the connecting sleeve 13 is connected to the gear ring 8. The motor 6 drives the rotating assembly to rotate rapidly and drives the scraping plate assembly 14 to rotate slowly, facilitating the scraping plate assembly 14 to clean the water coal slurry adhering to the inner wall of the bin body. The cleaned water coal slurry is rapidly rotated by the rotating assembly for sufficient stirring and mixing to avoid the stratification of the water coal slurry and its adhesion to the inner wall of the bin body.

[0032] When the motor 6 is started, the power output shaft of the motor 6 can drive the driving gear 7 to rotate. When the driving gear 7 rotates, it can drive the meshing gear ring 8 to rotate. The gear ring 8 drives the second driven gear 10 to rotate through the first driven gear 9. Since the diameter of the second driven gear 10 is smaller than that of the gear ring 8, when the driving gear drives the gear ring 8 to rotate slowly, the second driven gear 10 can rotate rapidly. Therefore, the scraping plate assembly 14 connected to the gear ring 8 can rotate slowly to clean the inner wall of the bin body, while the rotating assembly connected to the second driven gear 10 rotates rapidly to rapidly stir and mix the water coal slurry scraped by the scraping plate assembly 14, avoiding the stratification of the water coal slurry and its adhesion to the inner wall of the bin body when the water coal slurry is placed in the bin body for a long time.

[0033] The rotating assembly includes a rotating rod 11 and a rotating blade 16. An embedded heating rod 12 is provided inside the rotating rod 11. The rotating rod 11 drives the rotating blade 16 to rotate to stir and mix the coal water slurry. The heat provided by the heating rod 12 can make the pulverized coal in the coal water slurry more easily dispersed and mixed in water, thereby improving the stirring efficiency and ensuring the uniformity and stability of the coal water slurry. Two rotating blades 16 are provided and symmetrically distributed on the rotating rod 11. The rotating blades 16 are respectively provided with uniformly distributed through holes 17. The through holes 17 can change the flow mode of the coal water slurry in the storage bin and reduce the resistance on the surface of the rotating blade 16.

[0034] The end of the rotating rod 11 is connected to the second gear. When the rotating rod 11 rotates following the second gear, the rotating blade 16 on the rotating rod 11 rotates rapidly to stir the coal water slurry rapidly. Since through holes 17 are provided on the rotating blade 16, when the rotating blade 16 rotates rapidly, it can change the flow mode of the coal water slurry in the storage bin and reduce the resistance on the surface of the rotating blade 16, making the coal water slurry mix more fully, reducing the agglomeration and caking phenomenon of the coal water slurry, and reducing the shear force of the rotating blade 16 to avoid damage caused by the overload of the motor 6.

[0035] The scraping plate assembly 14 includes a first scraping plate, a second scraping plate and a third scraping plate arranged in a C-shaped layout. The first scraping plate contacts the top surface of the inner wall of the bin body, the second scraping plate contacts the side surface of the inner wall of the bin body, and the third scraping plate contacts the bottom surface of the inner wall of the bin body. It is convenient to clean the coal water slurry adhering to the bin wall. The ends of the first scraping plate, the second scraping plate and the third scraping plate close to the inner wall of the bin body are all tip structures. The effect of cleaning the coal water slurry adhering to the bin wall is better.

[0036] The scraping plate assembly 14 is connected to the gear ring 8 through a connecting rod. When the gear ring 8 rotates slowly, it can drive the scraping plate assembly 14 to slowly clean the inner wall of the bin body, avoiding the adhesion of the coal water slurry to the inner wall of the bin body. The tip structure can reduce the friction with the inner wall of the bin body, more easily scrape off the materials attached to the inner wall, reduce the accumulation of residues, and keep the surface of the equipment clean.

[0037] An installation frame 15 is provided on the bin body, and the installation frame 15 is connected to the first driven wheel 9. It is convenient to arrange the first driven wheel 9 between the gear ring 8 and the second driven wheel 10.

[0038] The first driven gear is rotatably installed on the mounting bracket 15 and is located between the toothed ring 8 and the second driven wheel 10. This facilitates the toothed ring 8 driving the second driven wheel 10 to rotate when the driving gear 7 rotates, and at the same time plays a speed-regulating role. When the toothed ring 8 rotates slowly, the second driven wheel 10 can rotate quickly, enabling a speed difference to exist during the rotation of the coal water slurry inside the bin body. The combined use of the slowly rotating scraper assembly 14 and the quickly rotating rotating assembly can improve the mixing uniformity of the coal water slurry, reduce energy consumption, reduce coal powder agglomeration, and improve production efficiency.

[0039] The connecting sleeve 13 includes a rotating sleeve and an L-shaped connecting rod. The rotating sleeve is sleeved outside the second driven wheel 10. The outer wall of the rotating sleeve is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the bottom surface of the toothed ring 8. The rotation of the toothed ring 8 facilitates driving the scraper assembly 14 to rotate slowly through the connecting rod. The rotation speed of the toothed ring 8 is different from that of the second driven wheel 10, achieving the effect of the slow rotation of the scraper assembly 14 and the fast rotation of the rotating assembly.

[0040] When the toothed ring 8 rotates, it drives the connecting rod to rotate. Since the connecting rod is connected to the rotating sleeve, it can drive the rotating sleeve and the rotating assembly to rotate concentrically. The scraper assembly 14 connected to the rotating sleeve can achieve the effect of slow rotation. Since a rotating rod 11 is also rotatably provided inside the rotating sleeve, the concentric but different-speed rotation of the scraper assembly 14 and the rotating assembly is realized.

[0041] The bin body includes a tank body 1 with an upper opening and a top cover 2 detachably connected to the tank body 1. Legs 3 are provided at the bottom of the tank body 1. This facilitates the disassembly of the device for separate maintenance, repair, and cleaning. It is convenient for separate maintenance and repair of each component after the device is disassembled, improving the practicality of the device. When a component is damaged, it can also be replaced separately.

[0042] The discharge pipe 4 is inclined and provided on the outer wall of the tank body 1. The bottom surface of the inner wall of the discharge pipe 4 is flush with the inner bottom surface of the tank body 1. This facilitates the smooth discharge of the coal water slurry from the storage bin and avoids the residue of the coal water slurry. When it is necessary to discharge the coal water slurry, the inclined discharge pipe 4 can achieve the rapid discharge of the coal water slurry and at the same time avoid the residue of the coal water slurry in the bin body.

[0043] In this embodiment, the working principle of the improved coal water slurry storage bin is as follows:

[0044] First, inject the water coal slurry into the interior of the silo through the feed pipe 5 for storage, and start the motor 6 intermittently. The power output shaft of the motor 6 drives the driving gear 7 to rotate. Then, when the driving gear 7 rotates, it drives the gear ring 8 to rotate. The second driven wheel 10 at the center of the gear ring 8 rotates following the gear ring 8 under the transmission of the first driven wheel 9. Next, the gear ring 8 drives the rotating sleeve to rotate through the connecting rod. The scraping assembly 14 at the bottom of the rotating sleeve located inside the silo scrapes the inner wall of the silo. At the same time, the second gear drives the rotating rod 11 to rotate, and the rotating assembly inside the silo stirs and mixes the water coal slurry to prevent the water coal slurry from stratifying and caking. Finally, before taking out, perform the above steps, fully clean and mix, and then discharge the water coal slurry from the inclined discharge pipe 4 out of the interior of the silo.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes, increases, or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claimed rights.

Claims

1. An improved water coal slurry storage bin, comprising a bin body, wherein a feed pipe (5) and a discharge pipe (4) are respectively arranged at the upper and lower ends of the bin body, and it is characterized in that, A transmission mechanism is provided on the bin body. The transmission mechanism includes a driving gear (7), a gear ring (8), a first driven wheel (9) and a second driven wheel (10) that mesh with each other. An electric motor (6) is also provided on the bin body. The output shaft of the electric motor (6) is connected to the driving gear (7) to drive the gear ring (8), the first driven wheel (9) and the second driven wheel (10) to rotate. One end of the axle of the second driven wheel (10) extends into the bin body and is equipped with a rotating assembly. A connecting sleeve (13) is sleeved on the axle of the second driven wheel (10). One end of the connecting sleeve (13) extends into the bin body and is equipped with a scraping plate assembly (14). The scraping plate assembly (14) contacts the inner wall of the bin body. The other end of the connecting sleeve (13) is connected to the gear ring (8).

2. An improved water coal slurry storage bin according to claim 1, characterized in that, The rotating assembly includes a rotating rod (11) and a rotating piece (16). An embedded heating rod (12) is provided inside the rotating rod (11).

3. An improved water coal slurry storage bin according to claim 2, characterized in that, Two rotating pieces (16) are provided and symmetrically distributed on the rotating rod (11). The rotating pieces (16) are respectively provided with uniformly distributed through holes (17).

4. An improved water coal slurry storage bin according to claim 1, characterized in that, The scraping plate assembly (14) includes a first scraping plate, a second scraping plate and a third scraping plate arranged in a C-shaped layout. The first scraping plate contacts the top surface of the inner wall of the bin body. The second scraping plate contacts the side surface of the inner wall of the bin body. The third scraping plate contacts the bottom surface of the inner wall of the bin body.

5. An improved water coal slurry storage bin according to claim 4, characterized in that, One ends of the first scraping plate, the second scraping plate and the third scraping plate close to the inner wall of the bin body are all in a pointed structure.

6. An improved water coal slurry storage bin according to claim 1, characterized in that, An installation frame (15) is provided on the bin body. The installation frame (15) is connected to the first driven wheel (9).

7. An improved water coal slurry storage bin according to claim 1, characterized in that, The connecting sleeve (13) includes a rotating sleeve and an L-shaped connecting rod. The rotating sleeve is sleeved on the outside of the second driven wheel (10). The outer wall of the rotating sleeve is connected to one end of the connecting rod. The other end of the connecting rod is connected to the bottom surface of the gear ring (8).

8. An improved water coal slurry storage bin according to claim 1, characterized in that, The rotation speed of the gear ring (8) is different from the rotation speed of the second driven wheel (10).

9. An improved water coal slurry storage bin according to claim 1, characterized in that, The bin body includes a tank body (1) with an open top and a top cover (2) detachably connected to the tank body (1). Legs (3) are provided at the bottom of the tank body (1).

10. An improved water coal slurry storage bin according to claim 9, characterized in that, The discharge pipe (4) is inclined and provided on the outer wall of the tank body (1). The bottom surface of the inner wall of the discharge pipe (4) is flush with the inner bottom surface of the tank body (1).

Images