Fly ash metering device

Abstract

The utility model provides a fly ash metering device which comprises a bottom frame, a metering box arranged above the bottom frame, a rotating mechanism arranged in the metering box, a box cover arranged above the metering box, a feeding port arranged above the box cover, and four areas arranged inside the metering box, the material storage areas are located under the feeding port, and the weighing area, the discharging area and the waiting area are sequentially arranged in an anticlockwise mode with the material storage areas as starting points; a mounting frame is arranged on one side of the bottom frame, a motor is mounted above the mounting frame, and a rotating shaft of the motor extends downwards and is provided with a main gear. In the rotating process of the rotating mechanism, fly ash on the surfaces of the metering box and the weighing plate can be scraped cleanly, fly ash residues are prevented from being bonded, under the action of the pushing plate, fly ash in the storage area can be pushed to be flat, fly ash cannot be accumulated at one corner of the inner side of the pushing plate in the fly ash pushing process, and the fly ash is prevented from being blocked. Therefore, the weighing error of the weighing plate can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fly ash technical field especially relates to a fly ash metering device. BACKGROUND

[0002] Fly ash is a kind of industrial waste residue discharged by coal-fired boiler in thermal power plant, and its main components are silicon, aluminum and iron oxides, which have potential hydration activity. If fly ash is reasonably mixed into mortar, it can play three effects, i.e. morphological effect, active effect and micro aggregate effect. If fly ash is used well, it can not only change waste into treasure, but also improve the workability, strength, elastic modulus, deformation capacity and durability of mortar.

[0003] The use of fly ash needs to use a metering device to accurately match fly ash with mortar. However, the existing fly ash metering device has some deficiencies in use: 1. The ash layer formed on the surface of the conveying belt is affected by the feeding amount, resulting in uneven thickness, which causes measurement error when the conveying belt passes through the weighing unit; 2. Fly ash residues are easily bonded, resulting in inaccurate measurement. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a fly ash metering device, which adopts the following technical scheme:

[0005] A fly ash metering device includes a chassis, a metering box installed above the chassis, a rotating mechanism arranged in the metering box, a box cover installed above the metering box, and a feed inlet arranged above the box cover. The inside of the metering box is divided into four areas, which are a storage area located directly below the feed inlet, a weighing area, a discharging area and a waiting area arranged in sequence counterclockwise from the storage area as a starting point. An installation frame is arranged on one side of the chassis, and a motor is installed above the installation frame. The rotating shaft of the motor extends downward and is provided with a main gear.

[0006] The rotating mechanism includes a partition plate, a flat plate, a center shaft and a gear. The center shaft is located at the center of the partition plate. The upper end of the center shaft extends out of the top of the box cover and is connected with a gear that meshes with the main gear.

[0007] Further, the length of the partition plate is equal to the inner diameter of the metering box. A clamping groove is arranged at the bottom end of the center shaft, and a center column is arranged at the center position inside the metering box for inserting the clamping groove of the center shaft.

[0008] Further, a weighing plate is arranged in the weighing area. A support frame is arranged below the weighing plate and above the chassis to provide support. A pressure sensor is arranged between the support frame and the weighing plate. The upper surface of the weighing plate and the inner bottom surface of the metering box are in the same plane, so that fly ash passing above the weighing plate will not be left.

[0009] Further, the position of the material falling area in the metering box is provided with a material falling groove, and a material falling cylinder is arranged below the material falling groove, and the lower end of the material falling cylinder is connected with a material falling port in the base frame, and the fly ash passing through the weighing area is discharged from the metering box from the position of the material falling groove.

[0010] Further, a pushing flat plate is arranged above the waiting area and at one side of the partition plate, the pushing flat plate is one quarter of the size of the metering box, and an upwardly raised groove is arranged at the lower end of the pushing flat plate, and one side of the groove is provided with a chamfer, so that the fly ash can be spread as much as possible and cannot be accumulated at a corner of the weighing plate.

[0011] Further, the main gear and the slave gear are of the same size, but the number of teeth of the main gear is one quarter of that of the slave gear, and when the main gear rotates one round, the slave gear rotates 90 degrees to connect the partition plate and the pushing flat plate below.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a rotating mechanism is arranged, with the rotation of the pushing flat plate, can in turn push fly ash from the storage area to the weighing area, again from the weighing area to the material falling area, finally the pushing flat plate returns to the waiting area, and waits for the fly ash discharge mechanism to be discharged again, so that the weighing work of fly ash can be realized circularly, and simultaneously the lower end of the partition plate is in contact with the inside bottom surface of the metering box, the outside side plate of the pushing flat plate is in contact with the inner wall of the metering box, and the upper surface of the weighing plate is in the same plane with the inside bottom surface of the metering box, so in the process of rotating of the rotating mechanism, the fly ash on the surface of the metering box and the weighing plate can be scraped clean, avoids fly ash to remain and bond, thereby can guarantee the accuracy of weighing plate each time weighing while prolonging the service life of the metering box.

[0014] The number of teeth of the main gear is one quarter of that of the slave gear, and is concentrated in a corner of the main gear, so that the main gear can intermittently drive the slave gear to rotate, and leaves time for the fly ash discharge mechanism to be discharged to the storage area and the weighing plate to weigh the fly ash above, and through the arrangement of the mechanical structure, the device runs more stably.

[0015] Under the action of the pushing flat plate, the fly ash in the storage area can be pushed flat, and the fly ash cannot be accumulated in the inside corner of the pushing flat plate in the process of pushing the fly ash, so that the weighing error of the weighing plate can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the utility model, and

[0017] Figure 2 It is the internal structure schematic diagram of the utility model, and

[0018] Figure 3 Figure 1 is a schematic diagram of the installation structure of the rotating mechanism of the present application;

[0019] Figure 4 Figure 2 is a schematic diagram of the internal structure of the metering box of the present application;

[0020] Figure 5 Figure 3 is a schematic diagram of the overall structure of the rotating mechanism of the present application;

[0021] Figure 6 Figure 4 is a schematic diagram of the structure of the weighing plate of the present application.

[0022] In the drawings:

[0023] 1 - base frame, 11 - discharging port, 2 - metering box, 21 - center column, 22 - blanking groove, 3 - box cover, 31 - feeding port, 4 - partition plate, 41 - flattening plate, 42 - center shaft, 43 - slave gear, 5 - mounting frame, 51 - motor, 52 - main gear, 6 - weighing plate, 61 - support frame, 62 - pressure sensor, 7 - blanking cylinder. DETAILED DESCRIPTION

[0024] In order to enable the personnel in the technical field to better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the personnel in the field without making creative efforts should belong to the protection scope of the present application.

[0025] As shown in the accompanying drawings. Figures 1-6

[0026] A fly ash metering device, comprising a base frame 1, a metering box 2 is installed above the base frame 1, a rotating mechanism is arranged in the metering box 2, a box cover 3 is installed above the metering box 2, and a feeding port 31 is arranged above the box cover 3, which is connected with a fly ash discharging mechanism; the inside of the metering box 2 is divided into four areas, which are a storage area located directly below the feeding port 31, a weighing area, a blanking area and a waiting area arranged in sequence in a counterclockwise direction starting from the storage area; the weighing area is provided with a weighing plate 6, a support frame 61 for supporting is arranged above the base frame 1 below the weighing plate 6, a pressure sensor 62 is arranged between the support frame 61 and the weighing plate 6, and the upper surface of the weighing plate 6 and the inner bottom surface of the metering box 2 are in the same plane so that the fly ash passing above the weighing plate 6 will not be left.

[0027] ​A material discharge chute 22 is provided in the material discharge area of ​​the metering box 2. A discharge cylinder 7 is provided below the material discharge chute 22. The lower end of the discharge cylinder 7 is connected to the discharge port 11 in the base frame 1. Through this structure, the fly ash that has passed through the weighing area will be discharged from the metering box 2 from the material discharge chute 22.

[0028] The rotating mechanism includes a partition plate 4, a push plate 41, a central shaft 42, and a driven gear 43. The length of the partition plate 4 is equal to the inner diameter of the metering box 2. The central shaft 42 is located at the center of the partition plate 4. A slot is provided at the bottom end of the central shaft 42. A central post 21 for inserting into the slot of the central shaft 42 is provided at the center of the inside of the metering box 2. The upper end of the central shaft 42 extends from the top of the box cover 3 and is connected to the driven gear 43.

[0029] As attached Figure 3 As shown, a push plate 41 is provided above the waiting area and on one side of the partition plate 4. The push plate 41 is one-quarter the size of the metering box 2. There is an upward-lifting groove at the lower end of the push plate 41. One side of the groove is chamfered. When the push plate 41 rotates, it pushes the fly ash falling into the storage area to the weighing area, which can spread the fly ash as much as possible, so that it will not accumulate in one corner of the weighing plate 6, making the weighing measurement more accurate. As the push plate 41 continues to rotate, it can eventually push the fly ash to the position of the dropping area, so that the fly ash can fall along the dropping chute 22 and the discharge cylinder 7, and finally be discharged from the discharge port 11.

[0030] To enable the rotating mechanism to rotate as a whole, a mounting bracket 5 is provided on one side of the base frame 1. The mounting bracket 5 has an inverted "L" shape. A motor 51 is installed on the top of the mounting bracket 5. The rotating shaft of the motor 51 extends downward and is fitted with a main gear 52. The main gear 52 is the same size as the driven gear 43, but the number of teeth of the main gear 52 is one-quarter of that of the driven gear 43. Thus, when the main gear 52 rotates one revolution, the driven gear 43, connected to the lower partition plate 4 and push plate 41, rotates 90 degrees. Therefore, there is a brief pause after each 90-degree rotation of the rotating mechanism, which is used for the fly ash discharge mechanism to discharge the material into the storage area and for the weighing plate 6 to weigh the fly ash above.

[0031] The process is as follows: The fly ash discharge mechanism adopts a spiral segmented discharge. After each rotation of the rotating mechanism, the push plate 41 is in the waiting area when the discharge is completed. When the motor 51 starts, the fly ash discharge mechanism stops discharging. The motor 51 starts and drives the rotating mechanism to rotate through the meshing between the main gear 52 and the driven gear 43. The push plate 41 pushes the fly ash from the storage area to the weighing area, and then from the weighing area to the discharge area. Finally, the push plate 41 returns to the waiting area, thus completing one cycle.

[0032] The technical scheme of the utility model, or the technical scheme inspired by the technical scheme of the utility model, designs similar technical scheme, and achieves the above technical effect, and all falls into the protection range of the utility model.

Claims

1. A fly ash metering device, comprising a chassis (1), a metering box (2) is installed above the chassis (1), characterized in that: A rotating mechanism is arranged in the metering tank (2), a tank cover (3) is arranged above the metering tank (2), a feeding port (31) is arranged above the tank cover (3), the inside of the metering tank (2) is divided into four areas, which are a storage area directly below the feeding port (31), a weighing area, a discharging area and a waiting area arranged in sequence in counterclockwise direction starting from the storage area; a mounting frame (5) is arranged on one side of the chassis (1), a motor (51) is arranged above the mounting frame (5), the rotating shaft of the motor (51) extends downward and is provided with a main gear (52); The rotating mechanism comprises a partition plate (4), a pushing plate (41), a central shaft (42) and a slave gear (43), the central shaft (42) is arranged at the center of the partition plate (4), the upper end of the central shaft (42) extends out of the top of the tank cover (3) and is connected with the slave gear (43) engaged with the main gear (52).

2. A fly ash metering device as claimed in claim 1, wherein: The length of the partition plate (4) is equal to the inner diameter of the metering tank (2).

3. A fly ash metering device as claimed in claim 2, wherein: The bottom end of the central shaft (42) is provided with a clamping groove, and a central column (21) is arranged at the center position inside the metering tank (2) for inserting the clamping groove of the central shaft (42).

4. A fly ash metering device as claimed in claim 1, wherein: A weighing plate (6) is arranged in the weighing area, a supporting frame (61) for supporting is arranged below the weighing plate (6) and above the chassis (1), and a pressure sensor (62) is arranged between the supporting frame (61) and the weighing plate (6).

5. A fly ash metering device as claimed in claim 4, wherein: The upper surface of the weighing plate (6) is in the same plane with the inner bottom surface of the metering tank (2).

6. A fly ash metering device as claimed in claim 1, wherein: A discharging groove (22) is arranged at the position of the discharging area in the metering tank (2), a discharging cylinder (7) is arranged below the discharging groove (22), and the lower end of the discharging cylinder (7) is connected with the discharging port (11) in the chassis (1).

7. A fly ash metering device as claimed in claim 2, wherein: The pushing plate (41) is arranged above the waiting area and on one side of the partition plate (4), the pushing plate (41) is one quarter of the size of the metering tank (2), a upwardly raised groove is arranged at the lower end of the pushing plate (41), and a chamfer is arranged on one side of the groove.

8. A fly ash metering device as claimed in claim 1, wherein: The main gear (52) and the slave gear (43) are of the same size, but the number of teeth of the main gear (52) is one quarter of that of the slave gear (43).

Images