Rectangular fly ash storage cavern facilitating discharging

Abstract

The utility model provides a rectangular coal ash storage cavern facilitating discharging, and relates to the field of rectangular large-reserve underground and semi-underground coal ash storage cavern discharging devices. A rectangular coal ash storage cavern facilitating discharging comprises a ground, a coal ash storage cavern body is arranged in the ground, a discharging groove is formed in the position, away from the coal ash storage cavern body, of the ground, an inflation box assembly is arranged in the coal ash storage cavern body, and the inflation box assembly comprises a protection shell, a transition bin, a gasification plate and a Roots blower. A first elevator is arranged in the discharging groove, a first outflow pipe is arranged at a discharging port of the coal ash storage cavern, the first outflow pipe is fixedly connected with a butterfly valve far away from the coal ash storage cavern, the butterfly valve is fixedly connected with a second outflow pipe far away from the first outflow pipe, and the second outflow pipe is communicated with a feeding port of the first elevator. The fly ash is fluidized by arranging the aeration tank assembly, so that the fly ash can flow out from the discharge port, the emptying rate of the fly ash in the rectangular fly ash warehouse can reach 95% or above, and the unloading condition is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rectangular large-capacity underground or semi-underground fly ash storage and unloading device, in particular to a rectangular fly ash storage for facilitating unloading. BACKGROUND

[0002] In China, the main coal production areas are concentrated in the north, and a large number of thermal power plants are built near coal mines, generating a large amount of fly ash. The main use of fly ash is as a building material. Due to the influence of seasons in the north, the construction conditions are not available in winter, and the use of building materials is very small, resulting in a large amount of fly ash that cannot be used in winter. Fly ash particles are very fine, and open storage will cause serious environmental pollution, so it must be stored in a warehouse.

[0003] According to our research, there are mainly two forms of fly ash storage: circular storage and rectangular storage. The circular storage is generally designed with unloading equipment, which can realize mechanical unloading, but the circular storage has the disadvantages of large investment and small storage capacity. The rectangular storage can be designed according to the terrain, and the investment is saved, the storage capacity is large, and the rectangular storage is more commonly used for storing fly ash. The biggest problem of the rectangular storage is difficult to unload, and the emptying rate is not high. The traditional unloading method is negative pressure pump suction and shovel truck transportation, which has a poor operating environment and is prone to safety accidents. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a rectangular fly ash storage for facilitating unloading, which can improve the unloading operation environment of the rectangular fly ash storage, improve the emptying rate of the storage, and reduce the environmental and safety risks of the rectangular fly ash storage.

[0005] In order to achieve the above object, a rectangular fly ash storage convenient for unloading is provided, which comprises a ground, a fly ash storage arranged in the ground, a discharge chute arranged away from the fly ash storage on the ground, a gas charging box assembly arranged in the fly ash storage, the gas charging box assembly comprising a protective shell, a transition bin, a gasification plate and a Roots blower, a first elevator arranged in the discharge chute, a first outflow pipe arranged at a discharge port of the fly ash storage, a butterfly valve fixedly connected to the first outflow pipe away from the fly ash storage, a second outflow pipe fixedly connected to the butterfly valve away from the first outflow pipe, the second outflow pipe being communicated with an inlet of the first elevator, a first conveying pipe arranged at an outlet of the first elevator, a second elevator fixedly connected to an upper surface of the ground, the first conveying pipe being communicated with an inlet of the second elevator, a second conveying pipe arranged at an outlet of the second elevator, a support arranged away from the second elevator on the upper surface of the ground, a bulk bin fixedly connected to a top end of the support, and the second conveying pipe being communicated with the bulk bin. The gas charging box assembly is arranged to facilitate the flow of fly ash in the storage, increase the flowability of fly ash, and thus improve the emptying rate of the bottom of the storage. The butterfly valve is arranged to facilitate the discharge amount. The first and second elevators are arranged to facilitate the conveying of fly ash discharged from the fly ash storage to the bulk bin. The support is arranged to facilitate the support of the bulk bin.

[0006] According to the rectangular fly ash storage convenient for unloading, the protective shell is fixedly connected to the inside of the fly ash storage, the transition bin is fixedly connected to the protective shell, and the gasification plate is fixedly connected to the upper surface of the transition bin. The protective shell is arranged to facilitate the protection of the Roots blower. The gasification plate is arranged to facilitate the dispersion of the air provided by the Roots blower.

[0007] According to the rectangular fly ash storage convenient for unloading, the Roots blower is fixedly connected to the lower surface of the protective shell, the air pipe connected to the output end of the Roots blower is communicated with the transition bin, and the air pipe connected to the input end of the Roots blower is communicated with the outside air. The Roots blower is arranged to facilitate the charging of air into the transition bin, so that the gas flows out of the gasification plate, and thus the fly ash is fluidized and the flowability is increased.

[0008] According to the rectangular fly ash storage convenient for unloading, a second air pipe is arranged at the top of the fly ash storage, a second filter plate is fixedly connected to the bottom of the second air pipe, and a cover plate is arranged at the top of the second air pipe. The second air pipe is arranged to facilitate the flow of excess air when the Roots blower injects air into the fly ash storage. The second filter plate is arranged to facilitate the filtration of dust in the flowing air, so as to avoid pollution of the outside air. The cover plate is arranged to block the second air pipe when there is no unloading, so as to avoid the inflow of rainwater into the fly ash storage in rainy days.

[0009] According to the rectangular fly ash storage convenient for unloading, the second motor is fixedly connected to the upper surface in the fly ash storage, and the second rotating shaft is fixedly connected to the output end of the second motor. The cleaning rod is arranged to facilitate scraping dust accumulated on the lower surface of the second filter plate during rotation.

[0010] According to the rectangular fly ash storage convenient for unloading, the cleaning rod is fixedly connected to the cylindrical surface of the second rotating shaft, and the upper surface of the cleaning rod is at the same height as the lower surface of the second filter plate.

[0011] According to the rectangular fly ash storage convenient for unloading, the upper surface of the bulk bin is provided with the first air outlet pipe, and the first filter plate is fixedly connected to the upper surface of the first air outlet pipe. The first filter plate is arranged to facilitate filtering dust in air flowing out of the bulk bin.

[0012] According to the rectangular fly ash storage convenient for unloading, the upper surface of the bulk bin is provided with the vibration assembly, the vibration assembly comprises a vertical plate, a limiting plate, a first motor, a first rotating shaft, an eccentric wheel, a contact ball, a spring, a convex ring and a sliding shaft, the vertical plate is fixedly connected to the upper surface of the bulk bin, the limiting plate is fixedly connected to the side surface of the vertical plate, and the limiting plate is provided with a vertical through hole.

[0013] According to the rectangular fly ash storage convenient for unloading, the first motor is fixedly connected to the side surface of the vertical plate, the first rotating shaft is fixedly connected to the output end of the first motor, and the eccentric wheel is fixedly connected to the cylindrical surface of the first rotating shaft.

[0014] According to the rectangular fly ash storage convenient for unloading, the contact ball is fixedly connected to the top end of the sliding shaft, the sliding shaft is slidingly connected in the through hole of the limiting plate, the convex ring is fixedly connected to the cylindrical surface of the sliding shaft, the spring is fixedly connected between the convex ring and the limiting plate, the sliding shaft is above the first filter plate, and the top end of the contact ball is in contact with the bottom surface of the eccentric wheel. The spring is arranged to facilitate pressing the sliding shaft on the eccentric wheel, so that the sliding shaft moves up and down back and forth when the eccentric wheel rotates, so as to hit the first filter plate below back and forth, so that the first filter plate vibrates, and dust accumulated on the first filter plate falls.

[0015] The utility model discloses an advantageous effect: through set up the inflation tank subassembly and make fly ash fluidization, make it can flow from the discharge gate, can guarantee rectangular fly ash storehouse in fly ash emptying rate reaches 95% or above, has improved the unloading condition, the use of first filter plate, second filter plate can reduce the flow of dust, thereby realizes the protection to atmospheric environment, through set up the vibration subassembly, the cleaning rod can avoid the dust that accumulates and block first filter plate, second filter plate, thereby guaranteeing ventilation efficiency.

[0016] The additional aspects and advantages of the utility model will be partly given in the following description, and some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further illustrated below in connection with the drawings and examples;

[0018] Fig. 1 It is the overall structure schematic diagram of rectangular fly ash storehouse convenient to unload that the utility model proposes;

[0019] Fig. 2 It is the vibration mechanism structure schematic diagram of rectangular fly ash storehouse convenient to unload that the utility model proposes;

[0020] Fig. 3 It is the fly ash storehouse internal structure schematic diagram of rectangular fly ash storehouse convenient to unload that the utility model proposes;

[0021] Fig. 4 It is the inflation tank subassembly internal structure schematic diagram of rectangular fly ash storehouse convenient to unload that the utility model proposes;

[0022] Fig. 5 It is the enlarged view of local structure of A of rectangular fly ash storehouse convenient to unload that the utility model proposes;

[0023] Fig. 6 It is the second filter plate installation position sectional structure schematic diagram of rectangular fly ash storehouse convenient to unload that the utility model proposes.

[0024] LEGEND:

[0025] 1, ground; 101, discharge chute; 2, coal ash storage; 3, first elevator; 4, first feeding pipe; 5, second elevator; 6, second feeding pipe; 7, air tank assembly; 701, protective shell; 702, transition bin; 703, gasification plate; 704, Roots blower; 8, bulk bin; 9, vibration assembly; 901, vertical plate; 902, limiting plate; 903, first motor; 904, first rotating shaft; 905, eccentric wheel; 906, contact ball; 907, spring; 908, protruding ring; 909, sliding shaft; 10, first air outlet pipe; 11, support; 12, second air pipe; 13, first filter plate; 14, first outflow pipe; 15, butterfly valve; 16, second outflow pipe; 17, cover plate; 18, second motor; 19, second filter plate; 20, second rotating shaft; 21, cleaning rod. DETAILED DESCRIPTION

[0026] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0027] Referring to Figs. 1 to 6 , the utility model discloses a rectangular coal ash storage convenient for discharging, which comprises ground 1, the inside of ground 1 is provided with coal ash storage 2, ground 1 is provided with discharge chute 101 away from coal ash storage 2, the inside of discharge chute 101 is provided with first elevator 3, the discharge port of coal ash storage 2 is provided with first outflow pipe 14, first outflow pipe 14 is fixedly connected with butterfly valve 15 away from coal ash storage 2, butterfly valve 15 is fixedly connected with second outflow pipe 16 away from first outflow pipe 14, second outflow pipe 16 is connected into the inlet of first elevator 3, the discharge port of first elevator 3 is provided with first feeding pipe 4, the upper surface of ground 1 is fixedly connected with second elevator 5, first feeding pipe 4 is connected into the inlet of second elevator 5, the discharge port of second elevator 5 is provided with second feeding pipe 6, the upper surface of ground 1 is provided with support 11 away from second elevator 5, support 11 is fixedly connected with bulk bin 8 at the top, second feeding pipe 6 is connected into bulk bin 8, the upper surface of bulk bin 8 is provided with first air outlet pipe 10, and the upper surface of first air outlet pipe 10 is fixedly connected with first filter plate 13. The bottom of coal ash storage 2 is inclined, butterfly valve 15 and Roots blower 704 are controlled by a control system to work, the number of air tank assembly 7 is multiple, is arranged according to the inclination angle and shape of more than 5 °, and the installation spacing is 0.5-1.5 m.

[0028] The upper surface of the bulk bin 8 is provided with a vibration assembly 9, which comprises a vertical plate 901, a limiting plate 902, a first motor 903, a first rotating shaft 904, an eccentric wheel 905, a contact ball 906, a spring 907, a convex ring 908 and a sliding shaft 909. The vertical plate 901 is fixedly connected to the upper surface of the bulk bin 8. The limiting plate 902 is fixedly connected to the side surface of the vertical plate 901. The upper surface of the limiting plate 902 is provided with a vertical through hole.

[0029] The first motor 903 is fixedly connected to the side surface of the vertical plate 901. The first rotating shaft 904 is fixedly connected to the output end of the first motor 903. The eccentric wheel 905 is fixedly connected to the cylindrical surface of the first rotating shaft 904. The contact ball 906 is fixedly connected to the top end of the sliding shaft 909. The sliding shaft 909 is slidingly connected in the through hole of the limiting plate 902. The convex ring 908 is fixedly connected to the cylindrical surface of the sliding shaft 909. The spring 907 is fixedly connected between the convex ring 908 and the limiting plate 902. The sliding shaft 909 is above the first filter plate 13. The top end of the contact ball 906 is in contact with the bottom surface of the eccentric wheel 905. The spring 907 is always in a compressed state.

[0030] The top of the coal ash storage 2 is provided with a second air pipe 12. The bottom of the second air pipe 12 is fixedly connected with a second filter plate 19. The top of the second air pipe 12 is provided with a cover plate 17. When discharging, the cover plate 17 is removed. After the discharging is completed, the cover plate 17 needs to be reinstalled.

[0031] The inside upper surface of the coal ash storage 2 is fixedly connected with a second motor 18. The output end of the second motor 18 is fixedly connected with a second rotating shaft 20. The cylindrical surface of the second rotating shaft 20 is fixedly connected with a cleaning rod 21. The upper surface of the cleaning rod 21 is at the same height as the lower surface of the second filter plate 19.

[0032] A protection shell 701 is fixedly connected to the inside of the coal ash storage 2. A transition bin 702 is fixedly connected with the protection shell 701. An airification plate 703 is fixedly connected to the upper surface of the transition bin 702. A Roots blower 704 is fixedly connected to the inside lower surface of the protection shell 701. The air pipe connected to the output end of the Roots blower 704 penetrates into the transition bin 702. The air pipe connected to the input end of the Roots blower 704 is communicated with the external air.

[0033] Working principle: After the Roots blower 704 is started, air enters the transition bin 702 through the air pipe. The air fluidizes the pulverized coal ash through the airification plate 703, thereby increasing the flowability of the pulverized coal ash. According to the slope in the bin, the material flows from the high end to the low end to the centralized discharge port. The discharge amount is controlled through the butterfly valve 15. The material is transported to the first elevator 3 through the first outflow pipe 14 and the second outflow pipe 16, and then is lifted to the bulk bin 8 through the second elevator 5, and then is loaded into a vehicle for shipment.

[0034] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art person who has possessed under the premise of not departing from the utility model tenet.

Claims

1. A rectangular shaped fly ash storage silo facilitating easy unloading comprising a ground surface (1) characterised in that: The ground (1) is internally provided with a coal ash storage (2), the ground (1) is provided with a discharge chute (101) away from the coal ash storage (2), the coal ash storage (2) is internally provided with an aeration tank assembly (7), the aeration tank assembly (7) comprises a protective shell (701), a transition bin (702), a gasification plate (703) and a Roots blower (704), the discharge chute (101) is internally provided with a first elevator (3), the discharge port of the coal ash storage (2) is provided with a first outflow pipe (14), the first outflow pipe (14) is fixedly connected with a butterfly valve (15) away from the coal ash storage (2), the butterfly valve (15) is fixedly connected with a second outflow pipe (16) away from the first outflow pipe (14), the second outflow pipe (16) is connected with the inlet of the first elevator (3), the outlet of the first elevator (3) is provided with a first conveying pipe (4), the upper surface of the ground (1) is fixedly connected with a second elevator (5), the first conveying pipe (4) is connected with the inlet of the second elevator (5), the outlet of the second elevator (5) is provided with a second conveying pipe (6), the upper surface of the ground (1) is provided with a support (11) away from the second elevator (5), the top of the support (11) is fixedly connected with a bulk bin (8), and the second conveying pipe (6) is connected with the bulk bin (8).

2. A rectangular shaped fly ash storage silo for facilitating unloading as claimed in claim 1 wherein: The protective shell (701) is fixedly connected in the coal ash storage (2), the transition bin (702) is fixedly connected with the protective shell (701), and the gasification plate (703) is fixedly connected to the upper surface of the transition bin (702).

3. A rectangular shaped fly ash storage silo for facilitating unloading as claimed in claim 1 wherein: The Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots blower (704) is fixedly connected to the lower surface in the protective shell (701), the Roots 4. A rectangular shaped fly ash storage silo for facilitating unloading as claimed in claim 1 wherein: ​ 5. A rectangular shaped fly ash storage silo for facilitating unloading as claimed in claim 1 wherein: ​ 6. A rectangular shaped fly ash storage silo for facilitating unloading as claimed in claim 5 wherein: ​ 7. A rectangular shaped fly ash storage silo for facilitating unloading as claimed in claim 1 wherein: ​ 8. A rectangular shaped fly ash storage silo for facilitating unloading according to claim 1, wherein: The bulk bin (8) upper surface is provided with a vibration assembly (9), the vibration assembly (9) includes a vertical plate (901), a limiting plate (902), a first motor (903), a first rotating shaft (904), an eccentric wheel (905), a contact ball (906), a spring (907), a convex ring (908) and a sliding shaft (909), the vertical plate (901) is fixedly connected on the upper surface of the bulk bin (8), the limiting plate (902) is fixedly connected on the side surface of the vertical plate (901), and the limiting plate (902) upper surface is provided with a vertical through hole.

9. A rectangular shaped fly ash storage silo for facilitating unloading according to claim 8, wherein: The first motor (903) is fixedly connected on the side surface of the vertical plate (901), the first rotating shaft (904) is fixedly connected on the output end of the first motor (903), and the eccentric wheel (905) is fixedly connected on the cylindrical surface of the first rotating shaft (904).

10. A rectangular shaped fly ash storage silo for facilitating unloading according to claim 8, wherein: The contact ball (906) is fixedly connected on the top end of the sliding shaft (909), the sliding shaft (909) is slidingly connected in the through hole of the limiting plate (902), the convex ring (908) is fixedly connected on the cylindrical surface of the sliding shaft (909), the spring (907) is fixedly connected between the convex ring (908) and the limiting plate (902), the sliding shaft (909) is above the first filter plate (13), and the top end of the contact ball (906) and the bottom surface of the eccentric wheel (905) are in contact.

Images