Calcium carbide furnace purification ash pressing ball conveying device
By designing a calcium carbide furnace purifying ash pressure ball conveyor device, adopting a screw conveyor structure and humidification mixer, combined with steel pipe protection, sealing sleeve lengthening and rock wool mesh lithium grease isolation measures, the problems of flash explosion and reamer bearing damage during the purified ash transportation process are solved, and stable and safe conveying and bearing protection are achieved.
Patent Information
- Application Number
- CN202420234529.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-01-31
AI Technical Summary
The existing purification ash conveying device is prone to flash explosion during reverse transportation, and the reamer bearing is easily damaged in high temperature environments, making it difficult to repair and replace.
A calcium carbide furnace purifying ash pressure ball conveying device is designed, adopting an autonomous structure similar to a screw conveyor. By installing a reamer inside the purifying ash bin, the purified ash is transported to a mixer with humidification function to avoid flash explosions, and through the combination of steel pipe protection and sealing sleeve lengthening, rock wool mesh felt and lithium-based grease, it isolates temperature and ash accumulation and protects the bearing seat.
It effectively avoids flash explosion of purification ash during the transportation process, and protects the reamer bearing seat through isolation measures to ensure its long-term and stable operation and avoids the difficulty of repair and replacement.
Smart Images
Figure CN222664803U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of purified ash conveying, in particular to a device for conveying purified ash balls from a calcium carbide furnace. Background Art
[0002] Purification ash is a substance collected in the dry purification section of a closed calcium carbide furnace. It has some special physical and chemical properties, such as high temperature, fine particle size, light specific gravity, strong viscosity, not easily soluble in water, easy to raise dust, and may spontaneously combust after contact with air. In addition, purification ash may also contain carbon monoxide and other toxic gases. If the dust is dissolved in water, it may release harmful chemicals such as sulfur and dioxins, which may be related to carcinogens. In the process of tail gas treatment for purification treatment, air coolers and bag dust collectors are usually used for cooling and dust removal. The solid dust finally formed by the gas tail flow treated by these equipment is called purification dust removal ash, or simply purification ash.
[0003] The original purified ash conveying device needs to use the ash discharge valve at the bottom of the silo to discharge the ash, which is lifted to the wheel mixer through the scraper and bucket elevator for mixing and then transported to the ball press for pressing. Due to the large space between the scraper and the bucket elevator, the purified ash contacts the air during the material transportation process, causing the purified ash to spontaneously ignite. Flash explosions often occur during the mixing process. In addition, since the reamer needs to extend into the purified ash silo, the temperature of the internal ash accumulation is high (70-120℃). After the reamer is installed, due to the long-term ash in the storage tank, the reamer bearing inside the reamer is damaged and cannot be repaired or replaced.
[0004] In view of this, we propose a device for conveying briquettes of purified ash from calcium carbide furnaces. Utility Model Content
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a device for pressing and conveying purified ash from a calcium carbide furnace to solve the technical problems of flash explosions occurring during the current purified ash transportation process and difficulty in repairing and replacing damaged reamer bearings.
[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a device for pressing and conveying purified ash from a calcium carbide furnace is designed, comprising a bracket (1), a purified ash bin (2) is fixedly installed on the top of the bracket (1), a mounting shell (3) is fixedly inserted into the side wall of the purified ash bin (2), bearing seats (4) are arranged at both ends of the mounting shell (3), a rock wool mesh (5) is attached to the inner wall of the bearing seat (4), a bearing (6) is fixedly installed inside the rock wool mesh (5); the mounting shell (3) has a plurality of inner walls, and a plurality of inner walls are provided with a plurality of inner walls. A reamer (7) is rotatably connected, a motor (8) is fixedly mounted on one end of the mounting shell (3) away from the bearing seat (4), a rotating shaft (26) is provided inside the reamer (7), the rotating shaft (26) is rotatably connected to the bearing seats (4) at both ends, the bearing seat (4) at one end close to the motor (8) is fixedly connected to the output end of the motor (8) via a coupling (25), a discharge port (9) is provided at the bottom of one end of the mounting shell (3) close to the motor (8), and a discharge pipe (10) is fixedly connected below the discharge port (9).
[0007] Preferably, a discharge bin (11) is provided at the bottom of the discharge pipe (10); a discharge port at the bottom of the discharge bin (11) is fixedly connected to a stirring device (12); a water vapor treatment device (13) and a water supply device (14) are provided on the upper surface of the stirring device (12); the bottom of the stirring device (12) is fixedly connected to a ball pressing device (15) via a connecting pipe; a first belt conveyor (16) and a second belt conveyor (17) are provided at the bottom discharge end of the ball pressing device (15); a return hopper elevator (18) is provided at the end of the second belt conveyor (17); and the return hopper elevator (18) is fixedly connected to the upper surface of the ball pressing device (15) via a siphon (24).
[0008] Preferably, a steel plate (20) is welded to the end of the bearing seat (4).
[0009] Preferably, the connection portion between the reamer (7) and the bearing (6) is sealed by means of an extended sealing sleeve (19).
[0010] Preferably, an oil filling port (21) is provided on the upper surface of the bearing seat (4) located inside the purified ash bin (2), and an oil filling pipe (22) is fixedly mounted on the oil filling port (21), and an end of the oil filling pipe (22) passes through the side wall of the purified ash bin (2) and extends to the outside.
[0011] Preferably, the rock wool mesh felt (5) is filled with 3# lithium-based grease (23).
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The utility model eliminates the scraper conveyor, bucket elevator and wheel mixer in the process of conveying purified ash, uses a conveying structure similar to a screw conveyor that is independently designed and modified, installs a reamer inside the purified ash bin, and conveys the purified ash to a mixer with a humidifying function. After being stirred, the ash enters a ball press to avoid flash explosion.
[0014] 2. The utility model can effectively prevent dust from entering the bearing seat through steel pipe protection and lengthened sealing sleeve, rock wool can isolate temperature, and the lithium-based grease filled inside can directly isolate dust from entering the bearing seat from the outside of the bearing seat, so as to effectively protect the bearing seat at the tail of the reamer to operate stably for a long time inside the purified ash bin. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the ash purification bin 2 in the utility model;
[0017] Figure 3 It is a structural schematic diagram of the bearing seat 4 in the utility model;
[0018] Figure 4 This is a schematic diagram of the connection structure between the motor and the bearing seat in the utility model;
[0019] Figure 5 for Figure 1 A magnified view of the structure of the local A part;
[0020] Figure 6 for Figure 2 A magnified view of the structure of part B in the middle.
[0021] In the figure: 1. frame; 2. ash purification bin; 3. mounting shell; 4. bearing seat; 5. rock wool mesh; 6. bearing; 7. reamer; 8. motor; 9. discharge port; 10. discharge pipe; 11. discharge bin; 12. stirring device; 13. water vapor treatment device; 14. water supply device; 15. ball pressing device; 16. first belt conveyor; 17. second belt conveyor; 18. return hopper elevator; 19. extended sealing sleeve; 20. steel plate; 21. oil filling port; 22. oil filling pipe; 23. 3# lithium grease; 24. siphon; 25. coupling; 26. rotating shaft. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] See also Figure 1 - Figure 5 The utility model provides a technical solution: a device for conveying purified ash balls from a calcium carbide furnace, comprising a bracket 1, a purified ash bin 2 is fixedly installed on the top of the bracket 1, a mounting shell 3 is fixedly inserted on the side wall of the purified ash bin 2, bearing seats 4 are arranged at both ends of the mounting shell 3, a rock wool mesh felt 5 is attached to the inner wall of the bearing seat 4, a bearing 6 is fixedly installed inside the rock wool mesh felt 5; a reamer 7 is rotatably connected inside the mounting shell 3, a motor 8 is fixedly installed at one end of the mounting shell 3 away from the bearing seat 4, a rotating shaft 26 is arranged inside the reamer 7, the rotating shaft 26 is rotatably connected to the bearing seats 4 at both ends, the bearing seat 4 near one end of the motor 8 is fixedly connected to the output end of the motor 8 through a coupling 25, a discharge port 9 is arranged at the bottom of one end of the mounting shell 3 near the motor 8, a discharge pipe 10 is fixedly connected below the discharge port 9. A discharge bin 11 is fixedly connected to the bottom of the discharge pipe 10; the bottom of the discharge bin 11 is fixedly connected to a stirring device 12, and a water vapor treatment device 13 and a water supply device 14 are provided on the upper surface of the stirring device 12. The bottom of the stirring device 12 is fixedly connected to a ball pressing device 15 through a connecting pipe. The purified ash is humidified and stirred by the water supply device 14, and the excess water vapor is treated by the water vapor treatment device 13. After humidification and stirring are completed, the product falls into the ball pressing device 15 for ball pressing.
[0025] Specifically, a first belt conveyor 16 and a second belt conveyor 17 are provided at the bottom of the ball pressing device 15, and a return hopper elevator 18 is provided at the end of the second belt conveyor 17. The return hopper elevator 18 is fixedly connected to the upper surface of the ball pressing device 15 through a siphon 24. Excess material falls into the upper surface of the second belt conveyor 17 and is transferred to the inside of the return hopper elevator 18, and then is transferred back to the inside of the ball pressing device 15 through the siphon 24 for repeated ball pressing.
[0026] Furthermore, the connection between the reamer 7 and the bearing 6 is sealed by an extended sealing sleeve 19, a steel plate 20 is welded to the end of the bearing seat 4, and the sealing sleeve at the end of the reamer is extended from the original 80 mm to 150 mm. The protection of the steel plate 20 and the extended sealing sleeve 19 can effectively prevent dust from entering the bearing seat 4.
[0027] Furthermore, an oil filling port 21 is provided on the upper surface of the bearing seat 4 located inside the purified ash bin 2, and the oil filling port 21 is convenient for fixing an oil filling pipe 22. The end of the oil filling pipe 22 passes through the side wall of the purified ash bin 2 and extends to the outside. The oil filling hole of the rear bearing seat 4 uses a 304 stainless steel pipe to extend to the outside of the purified ash bin 2 to install the oil filling port 21, which is convenient for regular lubrication; the bearing seat 4 located outside can be directly filled with oil for lubrication.
[0028] It is worth noting that the rock wool mesh felt 5 is filled with 3# lithium-based grease 23 . The rock wool can insulate the temperature, and the 3# lithium-based grease filled inside can directly prevent the dust outside the bearing seat 4 from entering the inside of the bearing seat 4 .
[0029] Working principle: the motor 8 rotates, driving the reamer 7 to rotate, so that the purified ash inside the purified ash bin 2 is transported to the outside of the purified ash bin 2 through the spiral reamer 7, falls into the discharge port 9, and falls into the stirring device 12 through the discharge pipe 10. The purified ash is humidified and stirred by the water supply device 14, and the excess water vapor is treated by the water vapor treatment device 13. After the humidification and stirring are completed, the product falls into the ball pressing device 15 for ball pressing. After ball pressing, the qualified product slides into the first belt conveyor 16 for transmission, and the excess material falls into the upper surface of the second belt conveyor 17 and is transmitted to the return hopper elevator 18, and then is transmitted back to the ball pressing device 15 through the siphon 24 for repeated ball pressing, thus completing the entire work process.
[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A device for conveying granulated ash from a calcium carbide furnace, comprising a bracket (1), characterized in that: A purified ash bin (2) is fixedly mounted on the top of the bracket (1), and a mounting shell (3) is fixedly plugged into the side wall of the purified ash bin (2). Bearing seats (4) are provided at both ends of the mounting shell (3). A rock wool mesh (5) is attached to the inner wall of the bearing seat (4), and a bearing (6) is fixedly mounted inside the rock wool mesh (5). A reamer (7) is rotatably connected inside the mounting shell (3), and a motor (8) is fixedly mounted on the end of the mounting shell (3) away from the bearing seat (4). A rotating shaft (26) is provided inside the reamer (7), and the rotating shaft (26) is rotatably connected to the bearing seats (4) at both ends. The bearing seat (4) at one end close to the motor (8) is fixedly connected to the output end of the motor (8) via a coupling (25). A discharge port (9) is provided at the bottom of one end of the mounting shell (3) close to the motor (8), and a discharge pipe (10) is fixedly connected below the discharge port (9).
2. The device for conveying granulated calcium carbide furnace purified ash according to claim 1 is characterized in that: A discharge bin (11) is provided at the bottom of the discharge pipe (10); a discharge port at the bottom of the discharge bin (11) is fixedly connected to a stirring device (12); a water vapor treatment device (13) and a water supply device (14) are provided on the upper surface of the stirring device (12); the bottom of the stirring device (12) is fixedly connected to a ball pressing device (15) via a connecting pipe; a first belt conveyor (16) and a second belt conveyor (17) are provided at the discharge end at the bottom of the ball pressing device (15); a return hopper elevator (18) is provided at the end of the second belt conveyor (17); the return hopper elevator (18) is fixedly connected to the upper surface of the ball pressing device (15) via a siphon (24).
3. The device for conveying granulated calcium carbide furnace purified ash according to claim 1 is characterized in that: A steel plate (20) is welded to the end of the bearing seat (4).
4. The device for conveying granulated calcium carbide furnace purified ash according to claim 1 is characterized in that: The connection portion between the reamer (7) and the bearing (6) is sealed by means of an extended sealing sleeve (19).
5. The device for conveying granulated calcium carbide furnace purified ash according to claim 1 is characterized in that: An oil filling port (21) is provided on the upper surface of the bearing seat (4) located inside the purified ash bin (2), an oil filling pipe (22) is fixedly mounted on the oil filling port (21), and an end of the oil filling pipe (22) penetrates the side wall of the purified ash bin (2) and extends to the outside.
6. The device for conveying granulated calcium carbide furnace purified ash according to claim 1, characterized in that: The rock wool mesh felt (5) is filled with 3# lithium-based grease (23).