Anti-blocking discharge port for fly ash production

Abstract

The utility model relates to the technical field of fly ash production, and particularly discloses an anti-blocking discharge port for fly ash production, which comprises a conical cylinder arranged at the bottom end of a storage tank, the bottom end of the conical cylinder is communicated with a discharge pipe, a support plate is arranged in the conical cylinder, the vertical center line of the support plate coincides with the axis of the discharge pipe, and the vertical center line of the support plate coincides with the axis of the discharge pipe. A plurality of connecting rods are evenly arranged between the supporting plate and the conical cylinder in the circumferential direction of the supporting plate, a tension spring with the bottom end stretching into the discharging pipe is arranged on the supporting plate, the bottom end of the tension spring is connected with a pull rope with the other end stretching out of the discharging pipe, and a power assembly used for driving the pull rope to pull the tension spring is arranged outside the discharging pipe. The anti-blocking device has the advantages that the phenomenon that materials are accumulated at any position of the bottom of the storage tank is avoided, the anti-blocking effect is extremely good, the discharging efficiency of coal ash is greatly improved, and the feeding efficiency and practicability of equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of fly ash production, and specifically discloses an anti-clogging discharge port for fly ash production. Background Art

[0002] Fly ash is the fine ash collected from the flue gas after coal combustion. It is the main solid waste discharged by coal-fired power plants. Fly ash directly discharged into the air will pollute the air. In addition, fly ash also has recycling value. Therefore, in the prior art, a larger storage tank is set up, and a cone is provided at the lower end of the storage tank to store the collected fly ash and transport it by tank truck. After long-term accumulation of fly ash in the tank body, it will agglomerate at the lower end of the cone, blocking the discharge port and affecting the normal discharge of the storage bin.

[0003] The existing Chinese utility model patent with patent application number 201920171058.0 discloses a fly ash anti-clogging feeding device, including a raw material tank, the bottom of which is connected to a discharge pipe, a stirring rod is provided in the discharge pipe, a stirring assembly for driving the stirring rod to swing is provided in the discharge pipe, the stirring assembly includes a motor, a gear, a rack and a connecting shaft, the gear is fixedly connected to the motor output shaft, the rack is a fan-shaped rack and cooperates with the gear, the rack is sleeved on the connecting shaft and fixedly connected to the connecting shaft, the connecting shaft is rotatably connected to the discharge pipe, and one end of the connecting shaft extending into the discharge pipe is fixedly connected to the stirring rod. After the motor is started, the motor drives the gear to rotate, the gear drives the rack to swing left and right, the rack drives the connecting shaft to rotate, and the rotating connecting shaft drives the stirring rod to shake in the discharge pipe.

[0004] The prior art has the following technical defects: the above-mentioned stirring rod has a small swing amplitude, the stirring effect on the fly ash is poor, and the effect of preventing the discharge pipe from being blocked is poor. Therefore, in view of this, the inventor provides an anti-blocking discharge port for fly ash production to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the traditional fly ash storage tank is poorly effective in preventing the discharge pipe from being blocked. Therefore, in view of this, the inventor provides an anti-blocking discharge port for fly ash production to solve the above-mentioned problem.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides an anti-clogging discharge port for fly ash production, including a conical cylinder arranged at the bottom end of a storage tank, the bottom end of the conical cylinder is connected to a discharge pipe, a support plate is arranged inside the conical cylinder, the vertical center line of the support plate coincides with the axis of the discharge pipe, a plurality of connecting rods are evenly arranged between the support plate and the conical cylinder along the circumference of the support plate, a tension spring with a bottom end extending into the discharge pipe is arranged on the support plate, the bottom end of the tension spring is connected to a pull rope with the other end extending out of the discharge pipe, and a power component for driving the pull rope to pull the tension spring is arranged outside the discharge pipe.

[0007] Furthermore, a sleeve is rotatably provided on the support plate, both ends of the sleeve are open and the sleeve has an inner cavity, a protective cover connected to the connecting rod is provided above the sleeve, the protective cover completely covers the sleeve along the radial direction of the sleeve, the bottom end of the sleeve extends to the bottom of the cone, the top end of the tension spring is fixedly connected to the protective cover, and the bottom end passes through the sleeve and extends into the discharge pipe.

[0008] Furthermore, a connecting plate is fixedly connected to the bottom end of the sleeve, and a stirring rod is obliquely fixed on the connecting plate.

[0009] Furthermore, a plurality of scraping blocks are evenly arranged on one side of the stirring rod.

[0010] Furthermore, a driving assembly for driving the sleeve to rotate is provided on the cone cylinder, and the driving assembly includes a bevel gear, a bevel gear and a transmission shaft. The bevel gear is fixedly sleeved on the top of the sleeve, and the bevel gear is meshed with the bevel gear for transmission. One end of the transmission shaft is fixedly connected to the bevel gear, and the other end of the transmission shaft passes through the protective cover and the cone cylinder in sequence and extends out of the cone cylinder. The transmission shaft is rotationally connected to the protective cover and the cone cylinder respectively.

[0011] Furthermore, one end of the transmission shaft passing through the cone is fixedly connected to a first gear, an outer wall of the cone is mounted with a motor, an output end of the motor is fixedly connected to a rotating shaft, and a second gear meshing with the first gear is fixedly connected to the rotating shaft.

[0012] Furthermore, the power assembly includes a slide plate and a transmission rod. A fixed plate is fixedly provided on the outer wall of the cone cylinder. A limiting slide groove is provided on the fixed plate in the vertical direction. The slide plate is slidably arranged in the limiting slide groove. A transmission plate is fixedly provided on the bottom of the slide plate. A long strip through groove is provided on the transmission plate in the horizontal direction. The transmission rod is L-shaped. The vertical section of the transmission rod is fixedly connected to the rotating shaft. The horizontal section of the transmission rod extends into the through groove and is in sliding contact with the inner wall of the through groove.

[0013] Furthermore, a pulley is arranged inside the discharge pipe near the inner wall of the discharge pipe, and a through hole is arranged on the inner wall of the discharge pipe inclined upward from the inside to the outside. One end of the pull rope passes through the through hole after passing around the pulley and is fixedly connected to the bottom of the transmission plate.

[0014] Furthermore, a dust-proof cover is provided on the inclined cover above the pulley.

[0015] The principle and effect of this scheme are:

[0016] Compared with the prior art, the utility model provides an anti-clogging discharge port for fly ash production. When discharging, the discharge valve is opened, the motor is started, and the motor rotates, which can drive the rotating shaft, the second gear, the first gear, and the transmission shaft to rotate. The transmission shaft drives the bevel gear, the bevel gear, and the sleeve to rotate. The sleeve drives the stirring rod and the scraping block to rotate. The stirring rod stirs the fly ash to prevent the fly ash from accumulating in the cone and speed up the discharging. At the same time, the scraping block will scrape off the fly ash adhering to the inner wall of the machine body, and break up the inner wall of the cone and the larger fly ash that has fallen, which more effectively prevents the fly ash from clogging the cone and improves the feeding efficiency and practicability of the equipment. When the rotating shaft rotates, it drives the transmission rod to rotate, and the horizontal section of the transmission block moves in the long strip through groove. Under the guidance of the limiting slide groove, the The slide plate and the transmission plate are lifted and lowered in the vertical direction. When the transmission plate moves upward, the tension spring is stretched by the pull rope. At the same time, the tension spring can clear the discharge pipe, making the fly ash in the discharge pipe easier to slide down, further improving the discharge efficiency, thereby preventing blockage. On the contrary, when the transmission plate moves downward, the elastic potential energy of the tension spring can restore it. One motor can drive the stirring rod to stir to prevent the cone from being blocked, and can also drive the tension spring to stretch and shrink back and forth in the discharge pipe to prevent the discharge pipe from being blocked, realizing one drive two, with low cost. In addition, the stirring rod and the spring almost cover the entire range of the cone and the discharge pipe, so that no material accumulation will occur at any position at the bottom of the storage tank, and the anti-blocking effect is excellent, which greatly improves the discharge efficiency of fly ash. That is, it solves the problem that the traditional fly ash storage tank has poor effect in preventing the discharge pipe from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the structure of an anti-clogging discharge port for fly ash production in the utility model;

[0019] Figure 2 This is a cross-sectional view of an anti-clogging discharge port for fly ash production of the utility model;

[0020] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 This is a partial structural schematic diagram of an anti-clogging discharge port for fly ash production of the utility model;

[0022] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 6 It is a structural schematic diagram of the dustproof cover in the utility model. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] The figure marks in the drawings of the specification include: cone 1, discharge pipe 2, support plate 3, connecting rod 4, tension spring 5, pull rope 6, sleeve 7, protective cover 8, cross plate 9, connecting plate 10, stirring rod 11, scraper block 12, bevel gear 13, bevel gear 14, transmission shaft 15, first gear 16, second gear 17, motor 18, rotating shaft 19, transmission rod 20, slide plate 21, fixed plate 22, limiting slide groove 23, transmission plate 24, long strip through groove 25, pulley 26, dust cover 27, through hole 28, mounting plate 29.

[0026] A fly ash production anti-clogging discharge port, for example Figure 1-6As shown: it includes a cone 1 arranged at the bottom of the storage tank, the bottom of the cone 1 is connected to a discharge pipe 2, a support plate 3 is horizontally arranged in the cone 1, the support plate 3 is cylindrical, and the axis of the support plate 3 coincides with the axis of the discharge pipe 2. Three connecting rods 4 are evenly arranged between the support plate 3 and the cone 1 along the circumference of the support plate 3, and the two ends of the connecting rod 4 are respectively fixedly connected to the side wall of the support plate 3 and the inner wall of the cone 1 to form a stable support for the support plate 3. A sleeve 7 is vertically arranged on the support plate 3, the two ends of the sleeve 7 are open and the sleeve 7 has an inner cavity, the cylinder body is rotatably mounted on the support plate 3 through a sealed bearing, the top end of the sleeve 7 is located above the support plate 3, and the bottom end of the sleeve 7 extends vertically downward to the bottom of the cone 1. A protective cover 8 fixedly connected to the connecting rod 4 is arranged above the sleeve 7. The protective cover 8 is conical and has an opening facing downward. The protective cover 8 completely covers the sleeve 7 along the radial direction of the sleeve 7. The conical protective cover 8 can reduce the resistance encountered by the fly ash when it is discharged under the action of gravity. This structural design is conducive to the smooth discharge of the fly ash. A horizontal plate 9 is fixedly arranged on the top of the protective cover 8, and a tension spring 5 is arranged on the horizontal plate 9. The top of the tension spring 5 is fixedly connected to the bottom of the horizontal plate 9, and the bottom end passes through the sleeve 7 and extends into the discharge pipe 2. In this embodiment, according to actual conditions, the tension spring 5 may include a large diameter section and a small diameter section. The small diameter section is located above the large diameter section, the small diameter section passes through the sleeve 7, and the large diameter section extends into the discharge pipe 2. The bottom end of the tension spring 5 is connected to a pull rope 6 whose other end extends out of the discharge pipe 2, and a power component for driving the pull rope 6 to pull the tension spring 5 is arranged outside the discharge pipe 2.

[0027] In this embodiment, a discharge valve (not shown) is provided at the bottom of the discharge pipe 2 to control the discharge of fly ash. By pulling the tension spring 5, the tension spring 5 moves up and down to clear the entire discharge pipe 2, making it easier for the fly ash in the discharge pipe 2 to slide down, thereby achieving an anti-blocking effect.

[0028] The cone 1 is provided with a driving assembly for driving the sleeve 7 to rotate, and the driving assembly includes a bevel gear 13, a bevel gear 14 and a transmission shaft 15. The bevel gear 13 is fixedly sleeved on the top of the sleeve 7, and the bevel gear 14 is located above the bevel gear 13 and meshes with the bevel gear 13 for transmission. The bevel gear 14 and the bevel gear 13 are both located in the protective cover 8. One end of the transmission shaft 15 is fixedly connected to the bevel gear 14, and the other end of the transmission shaft 15 passes through the protective cover 8 and the cone 1 in sequence and extends out of the cone 1. The transmission shaft 15 is rotatably connected to the protective cover 8 and the cone 1 through a sealed bearing. One end of the transmission shaft 15 passing through the cone 1 is fixedly connected to the first gear 16, and a mounting plate 29 is fixedly provided on the outer wall of the cone 1. A motor 18 is fixedly installed on the mounting plate 29 by bolts, and a rotating shaft 19 is fixedly connected to the output end of the motor 18, and a second gear 17 meshing with the first gear 16 is fixedly connected to the rotating shaft 19.

[0029] Two connecting plates 10 are symmetrically fixedly connected to the left and right sides of the bottom end of the sleeve 7 , and a stirring rod 11 is obliquely fixed on each connecting plate 10 . A plurality of scraping blocks 12 are evenly arranged on one side of the stirring rod 11 facing the inner wall of the cone 1 .

[0030] In this embodiment, the scraping blocks 12 on the stirring rods 11 on the left and right sides are arranged alternately. The scraping blocks 12 can be in a zigzag, spiral, serpentine or other shapes to cover as much of the inner wall of the cone 1 as possible.

[0031] The power assembly includes a slide plate 21 and a transmission rod 20. A fixed plate 22 is fixedly provided on the outer wall of the cone 1. The fixed plate 22 is located above the transmission shaft 15 and the motor 18. A limiting slide groove 23 is provided on the fixed plate 22 in the vertical direction. The slide plate 21 is vertically arranged and the slide plate 21 slides through the limiting slide groove 23. A transmission plate 24 is fixedly provided at the bottom of the slide plate 21. The transmission plate 24 is provided with a long strip through groove 25 in the horizontal direction. The transmission rod 20 is L-shaped. The vertical section of the transmission rod 20 is fixedly connected to the rotating shaft 19, and the horizontal section of the transmission rod 20 extends into the through groove and slides in contact with the inner wall of the through groove.

[0032] A pulley 26 is provided in the discharge pipe 2 near the inner wall of the discharge pipe 2. A through hole 28 is provided on the inner wall of the discharge pipe 2 from the inside to the outside, and the lower end of the through hole 28 is higher than the bottom of the pulley 26 to prevent the falling fly ash from leaking out of the discharge pipe 2 through the through hole 28. One end of the pull rope 6 passes through the through hole 28 after passing through the pulley 26, and is fixedly connected to the bottom of the transmission plate 24. An anti-ash cover 27 is provided on the inclined cover above the pulley 26 to prevent a large amount of fly ash from being pressed down on the connection between the pulley 26 and the pull rope 6, affecting the normal use of the pulley 26 and the pull rope 6, and to prevent excessive fly ash from accumulating near the through hole 28, thereby leaking out of the discharge pipe 2 through the through hole 28.

[0033] In this embodiment, the top of the ash-proof cover 27 is welded to the inner wall of the discharge pipe 2, the ash-proof cover 27 is inclined from top to bottom toward the axial direction of the discharge pipe 2, and the pulley 26 is fixedly installed under the ash-proof cover 27; pulleys 26 are respectively arranged on the outer wall of the discharge pipe 2, the outer wall of the cone cylinder 1, and the mounting plate 29 to tension and guide the pull rope 6 so that the pull rope 6 is close to the cone cylinder 1 without occupying too much space, while reducing the wear of the pull rope 6 and increasing the service life of the pull rope 6.

[0034] The working principle of this embodiment is as follows:

[0035] When unloading, open the discharge valve, start the motor 18, and the motor 18 rotates, which can drive the rotating shaft 19, the second gear 17, the first gear 16, and the transmission shaft 15 to rotate. The transmission shaft 15 drives the bevel gear 14, the bevel gear 13, and the sleeve 7 to rotate. The sleeve 7 drives the stirring rod 11 and the scraping block 12 to rotate. The stirring rod 11 stirs the fly ash to prevent the fly ash from accumulating in the cone 1 and speed up the unloading. At the same time, the scraping block 12 will scrape off the fly ash adhering to the inner wall of the machine body, and break up the inner wall of the cone 1 and the larger fly ash that falls, which more effectively prevents the fly ash from clogging the cone 1 and improves the efficiency and practicality of the equipment feeding.

[0036] When the rotating shaft 19 rotates, the transmission rod 20 is driven to rotate, and the horizontal section of the transmission block moves in the long strip through groove 25. Under the guidance of the limiting slide groove 23, the slide plate 21 and the transmission plate 24 are reciprocated and lifted in the vertical direction. When the transmission plate 24 moves upward, the tension spring 5 is stretched through the pull rope 6. At the same time, the tension spring 5 will play a role in clearing the discharge pipe 2, making it easier for the fly ash in the discharge pipe 2 to slide down, further improving the discharge efficiency, thereby playing an anti-blocking effect. Conversely, when the transmission plate 24 moves downward, it will be restored due to the elastic potential energy of the tension spring 5.

[0037] The anti-clogging discharge port provided by the utility model can drive the stirring rod 11 for stirring to prevent the cone cylinder 1 from being blocked by a motor 18, and can also drive the tension spring 5 to reciprocate and stretch and contract in the discharge pipe 2 to prevent the discharge pipe 2 from being blocked, thus realizing one driving two and having a low cost. In addition, the stirring rod 11 and the spring almost cover the entire range of the cone cylinder 1 and the discharge pipe 2, so that material accumulation will not occur at any position at the bottom of the storage tank, the anti-clogging effect is excellent, and the discharge efficiency of the fly ash is greatly improved.

[0038] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An anti-clogging discharge port for fly ash production, characterized in that: It includes a conical cylinder arranged at the bottom end of the storage tank, the bottom end of the conical cylinder is connected to a discharge pipe, a support plate is arranged inside the conical cylinder, the vertical center line of the support plate coincides with the axis of the discharge pipe, a plurality of connecting rods are evenly arranged between the support plate and the conical cylinder along the circumference of the support plate, a tension spring with the bottom end extending into the discharge pipe is arranged on the support plate, the bottom end of the tension spring is connected to a pull rope with the other end extending out of the discharge pipe, and a power component for driving the pull rope to pull the tension spring is arranged outside the discharge pipe.

2. The anti-clogging discharge port for fly ash production according to claim 1, characterized in that: A sleeve is rotatably provided on the support plate, both ends of the sleeve are open and the sleeve has an inner cavity, a protective cover connected to the connecting rod is provided above the sleeve, the protective cover completely covers the sleeve along the radial direction of the sleeve, the bottom end of the sleeve extends to the bottom of the cone, the top end of the tension spring is fixedly connected to the protective cover, and the bottom end passes through the sleeve and then extends into the discharge pipe.

3. The anti-clogging discharge port for fly ash production according to claim 2, characterized in that: The bottom end of the sleeve is fixedly connected with a connecting plate, and a stirring rod is obliquely fixed on the connecting plate.

4. The anti-clogging discharge port for fly ash production according to claim 3, characterized in that: A plurality of scraping blocks are evenly arranged on one side of the stirring rod.

5. The anti-clogging discharge port for fly ash production according to claim 3, characterized in that: The cone cylinder is provided with a driving assembly for driving the sleeve to rotate, and the driving assembly includes a bevel gear, a bevel gear and a transmission shaft. The bevel gear is fixedly sleeved on the top of the sleeve, and the bevel gear is meshed with the bevel gear for transmission. One end of the transmission shaft is fixedly connected to the bevel gear, and the other end of the transmission shaft passes through the protective cover and the cone cylinder in sequence and extends out of the cone cylinder. The transmission shaft is rotationally connected to the protective cover and the cone cylinder respectively.

6. The anti-clogging discharge port for fly ash production according to claim 5, characterized in that: One end of the transmission shaft passing through the cone is fixedly connected to a first gear, an outer wall of the cone is mounted with a motor, an output end of the motor is fixedly connected to a rotating shaft, and a second gear meshing with the first gear is fixedly connected to the rotating shaft.

7. The anti-clogging discharge port for fly ash production according to claim 6, characterized in that: The power assembly includes a slide plate and a transmission rod. A fixed plate is fixedly provided on the outer wall of the cone cylinder. A limiting slide groove is provided on the fixed plate in the vertical direction. The slide plate is slidably inserted into the limiting slide groove. A transmission plate is fixedly provided on the bottom of the slide plate. A long strip through groove is provided on the transmission plate in the horizontal direction. The transmission rod is L-shaped. The vertical section of the transmission rod is fixedly connected to the rotating shaft. The horizontal section of the transmission rod extends into the through groove and slides in contact with the inner wall of the through groove.

8. The anti-clogging discharge port for fly ash production according to claim 7, characterized in that: A pulley is arranged inside the discharge pipe near the inner wall of the discharge pipe, and a through hole is arranged on the inner wall of the discharge pipe obliquely upward from the inside to the outside. One end of the pull rope passes through the through hole after passing around the pulley and is fixedly connected to the bottom of the transmission plate.

9. The anti-clogging discharge port for fly ash production according to claim 8, characterized in that: The inclined cover above the pulley is provided with a dust-proof cover.

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