Fly ash feeding tank

Abstract

The application provides a fly ash feeding tank, and belongs to the technical field of fly ash treatment auxiliary equipment. The feeding tank comprises a mounting frame, a tank body is arranged on the mounting frame, a feeding pipe is arranged vertically downwards at the bottom of the tank body and penetrates through the mounting frame, a rotating wheel is rotatably arranged between the feeding pipe and a discharging end of the tank body, an inner wall of the rotating wheel is provided with a scraping rod, and an outer wall of the scraping rod is tangent to an inner wall of a lower end of the tank body. The scheme provided by the application can effectively avoid the situation that the fly ash is blocked during feeding into a mixing tank, so that feeding failure is caused, and thus the quality of cement is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for fly ash treatment, and in particular relates to a fly ash feeding tank. Background Technology

[0002] Chromium slag is mixed with raw materials such as limestone, clay, iron powder, and fly ash. The high temperature and reducing atmosphere within the cement kiln reduce the hexavalent chromium in the slag to trivalent chromium, simultaneously producing cement clinker. This process not only achieves the harmless treatment of chromium slag but also utilizes components such as dicalcium silicate and calcium aluminoferrite in the slag to improve the mineral composition of the cement clinker, thereby enhancing the strength and durability of the cement.

[0003] During mixing, chromium slag is usually placed in separate temporary storage containers with limestone, clay, iron powder, and fly ash. Each temporary storage container is then connected to the mixing tank, and the materials are added while the mixture is being mixed in the mixing tank, thus ensuring the uniformity of the mixture.

[0004] However, when feeding fly ash, blockages in the silo are common, leading to feeding failures and affecting cement quality. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a fly ash feeding tank, which can effectively prevent fly ash from getting stuck during the mixing process, thus ensuring the quality of cement.

[0006] In order to achieve the purpose of this utility model, the following solution is proposed:

[0007] A fly ash feeding tank includes a mounting frame on which a tank body is mounted. A feeding pipe is provided vertically downward through the mounting frame at the bottom of the tank body. A rotating wheel is provided between the feeding pipe and the discharge end of the tank body. A scraper is provided on the inner wall of the rotating wheel. The outer wall of the scraper is tangent to the lower inner wall of the tank body.

[0008] Furthermore, the discharge end of the tank has an inverted conical structure, with a cylinder vertically positioned below its smaller end. The lower end of the cylinder has an annular plate, and the bottom surface of the mounting frame has a fixed cylinder. The fixed cylinder is coaxial with the cylinder, and the lower end of the rotating wheel is fitted inside the fixed cylinder. The top surface of the fixed cylinder has a convex ring, which is connected to the annular plate by a screw. The convex ring is locked to the bottom surface of the mounting frame by bolts.

[0009] Furthermore, the inner wall of the rotor has protruding protrusions, the lower end of the scraper is connected to the protrusions, and the length direction of the scraper is tangent to the inner wall of the inverted conical structure at the lower end of the tank.

[0010] Furthermore, multiple support rods are spaced apart along the length of the scraper rod, and the outer end of each support rod has a tapered structure.

[0011] Furthermore, the rotating wheel is a pulley, and a motor is installed at one end of the bottom surface of the mounting frame. The output end of the motor passes vertically upward through the mounting frame and is equipped with a drive pulley, which is connected to the rotating wheel through a ring belt.

[0012] The beneficial effects of this utility model are as follows:

[0013] A rotating wheel is installed at the lower end of the tank, and a scraper parallel to the inner wall of the tank is installed inside the rotating wheel. During the feeding process, the rotating wheel rotates, thereby driving the scraper to scrape the inner wall of the tank, thus agitating the fly ash in the tank. This prevents the fly ash in the tank from clogging the tank during the feeding process, which could lead to feeding failure and discharge failure. This ensures that the raw materials in the mixing tank are mixed evenly and that the quality of the cement is guaranteed. Attached Figure Description

[0014] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0015] Figure 1 A three-dimensional structural schematic diagram of one side of this application is shown.

[0016] Figure 2 A three-dimensional structural schematic diagram of the other side of this application is shown.

[0017] Figure 3 A cross-sectional view along the length of the mounting bracket is shown in this application.

[0018] Figure 4 This application shows Figure 3 A magnified view of part A in the diagram.

[0019] Figure 5 A schematic diagram of the rotor and scraper structure of this application is shown.

[0020] The markings in the diagram are: mounting bracket-1, screw-11, bolt-12, motor-13, drive pulley-14, annular belt-15, tank-2, cylinder-21, annular plate-22, feeding pipe-3, convex ring-31, rotating wheel-4, scraper-41, protrusion-42, support rod-43. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the implementation methods of this utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this utility model are only some embodiments of this utility model, and not all embodiments.

[0022] like Figures 1-5 The embodiment shown provides a fly ash feeding tank, including a mounting frame 1, a tank body 2, a feeding pipe 3, and a rotating wheel 4.

[0023] Specifically, such as Figures 1-2 As shown, the top surface of the mounting frame 1 is plate-shaped and horizontally arranged. The tank 2 is located on the top surface of the mounting frame 1, and the axis of the tank 2 is perpendicular to the top surface of the mounting frame 1. The upper part of the tank 2 is cylindrical and the lower part is inverted conical. The lower end of the inverted conical structure of the tank 2 is vertically downward and a cylinder 21 is provided coaxially with the tank 2. The outer wall of the lower end of the cylinder 21 is provided with an outwardly protruding annular plate 22.

[0024] A motor 13 is provided at one end of the bottom surface of the mounting bracket 1. The output end of the motor 13 passes vertically upward through the mounting bracket 1 and is provided with a drive pulley 14. An annular belt 15 is provided on the drive pulley 14. The other end of the annular belt 15 is fitted onto the rotating wheel 4, so that the driving of the rotating wheel 4 adopts the form of belt drive, which can play the role of overload protection and is inexpensive.

[0025] like Figures 3-4 As shown, the rotating wheel 4 has a circular structure, and its outer wall is provided with a groove for installing the annular belt 15. Extension tubes are coaxially provided on the upper and lower surfaces of the rotating wheel 4. The outer wall of the upper extension tube is tangent to the inner wall of the cylinder 21, and the lower extension tube extends vertically downward into the feeding tube 3.

[0026] Specifically, such as Figure 4 As shown, the feeding pipe 3 is installed on the mounting frame 1. The upper end of the feeding pipe 3 extends vertically upwards to a predetermined length from the top surface of the mounting frame 1. The outer diameter of the feeding pipe 3 is the same as the outer diameter of the rotating wheel 4. In order to reduce the friction between the rotating wheel 4 and the annular plate 22 and the upper end of the feeding pipe 3 when the rotating wheel 4 rotates, roller bearings are provided on the two sides of the rotating wheel 4 that contact the annular plate 22 and the feeding pipe 3 respectively.

[0027] The outer wall of the feeding pipe 3 is provided with a convex ring 31, the outer diameter of which corresponds to the outer diameter of the annular plate 22. Bolts 12 are arranged in an array along the circumference of the convex ring 31, so that the bolts 12 are locked to the bottom surface of the mounting bracket 1. Between two adjacent bolts 12, there are screws 11 that pass vertically through the convex ring 31, the mounting bracket 1, and the annular plate 22 in sequence, so as to improve the coaxiality and stability of the cylinder 21, the rotating wheel 4, and the feeding pipe 3.

[0028] like Figure 5 As shown, a protrusion 42 is provided on the inner wall of the extension tube at the upper end of the rotor 4. A scraper 41 is provided at the upper end of the protrusion 42. The scraper 41 is inclined and its inclination direction is parallel to the generatrix of the inverted conical structure at the lower end of the tank body 2. It is used to scrape the fly ash attached to the inner wall at the lower end of the tank body 2, thereby avoiding the failure of fly ash feeding caused by "wall hanging", "rat hole" and "bridging" at the discharge port at the lower end of the tank body 2 during the feeding process.

[0029] Support rods 43 are arranged in an array along the length of scraper 41. The support rods 43 are located on the side of scraper 41 facing the axis of tank 2. The top of the support rods 43 has a conical structure. When scraper 41 rotates with the wheel 4, the conical structure at the top of the support rods 43 can reduce the resistance between the support rods 43 and fly ash.

[0030] Specific operating methods:

[0031] Connect the lower end of the feeding pipe 3 to the mixing tank, start the motor 13, and drive the drive pulley 14 to rotate. The drive pulley 14 drives the annular belt 15, which in turn drives the rotating wheel 4 to rotate. Under the rotation of the rotating wheel 4, the rotating rod 41 inside it rotates synchronously around the inner wall of the inverted conical structure at the bottom of the tank body 2.

[0032] At the same time, fly ash is poured into tank 2, so that when the fly ash entering tank 2 is fed into the mixing tank, the scraper 41 scrapes continuously, so that when the fly ash in tank 2 is temporarily stored in tank 2, the fly ash will not be "hanging on the wall", "rat hole" or "bridging" which would lead to the failure of fly ash feeding, so as to make the various raw materials mixed in the mixing tank evenly.

[0033] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A fly ash feeding hopper, comprising a mounting frame (1) on which a hopper body (2) is mounted, and a feeding pipe (3) is provided vertically downward through the mounting frame (1) at the bottom of the hopper body (2), characterized in that, A rotating wheel (4) is provided between the feeding pipe (3) and the discharge end of the tank (2). The inner wall of the rotating wheel (4) is provided with a scraper (41), and the outer wall of the scraper (41) is tangent to the lower inner wall of the tank (2).

2. The fly ash feeding tank according to claim 1, characterized in that, The discharge end of the tank (2) has an inverted conical structure, with a cylinder (21) vertically arranged below its small end. The lower end of the cylinder (21) is provided with an annular plate (22). The outer periphery of the feeding pipe (3) is provided with a convex ring (31). The convex ring (31) and the annular plate (22) are connected by a screw (11). The convex ring (31) is locked to the bottom surface of the mounting frame (1) by a bolt (12).

3. The fly ash feeding tank according to claim 2, characterized in that, The inner wall of the rotating wheel (4) has a protruding protrusion (42), and the lower end of the scraper (41) is connected to the protrusion (42). The length direction of the scraper (41) is tangent to the inner wall of the inverted conical structure at the lower end of the tank (2).

4. The fly ash feeding hopper according to claim 2, characterized in that, Multiple support rods (43) are provided at intervals along the length of the scraper rod (41), and the outer end of each support rod (43) is tapered.

5. The fly ash feeding tank according to claim 1, characterized in that, The rotating wheel (4) is a pulley. A motor (13) is installed at one end of the bottom surface of the mounting frame (1). The output end of the motor (13) passes vertically upward through the mounting frame (1) and is provided with a drive pulley (14). The drive pulley (14) is connected to the rotating wheel (4) through an annular belt (15).

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