A dredging structure of a stirring barrel ash inlet

Abstract

The utility model relates to the technical field of mixed stirring operation, especially relates to a dredging structure of ash inlet of stirring barrel, and the structure includes butterfly valve communicated with the measuring hopper, relay bin set in the upper portion of stirring barrel and rotary scraper device arranged between relay bin and stirring barrel. The top of relay bin is equipped with the overhaul opening, and the inner wall is arranged the support framework at intervals, and the scraper is rotated along the inner hole and the inner wall of relay bin under the drive of the slewing disc, and the compacted material on the scraper is removed. The structure can reduce the blockage caused by the damp adhesion and compaction of powder, ensure the continuous and stable feeding, improve the production efficiency and safety, and be convenient for maintenance.

Description

Technical Field

[0001] This utility model relates to the field of mixing and stirring operation technology, and in particular to a dredging structure for the ash inlet of a mixing tank. Background Technology

[0002] Mixing drums are widely used in various fields such as mining, industrial production, and construction for mixing materials. Taking the production of filling mortar as an example, the mixing drum needs to thoroughly mix cement, sand and gravel aggregates, water, and various admixtures to produce a filling mixture that meets the engineering requirements. In this process, the ash inlet of the mixing drum, as a key channel for powder materials (such as cement) to enter the mixing drum, is of paramount importance in terms of its stability and smooth flow.

[0003] However, in actual use, the ash inlet of the mixing tank often faces the problem of clogging. On the one hand, the characteristics of the materials being processed pose a challenge to the ash inlet. Powders like cement have strong water absorption and are prone to caking if the ambient humidity is not well controlled during storage and transportation. Caking significantly reduces the fluidity of the material, making it easy to accumulate and clog the ash inlet when it enters the mixing tank. On the other hand, an unreasonable structural design of the ash inlet, such as an excessively small pipe diameter, a shape that does not facilitate smooth material passage, or uneven material flow velocity at the inlet, can increase the risk of material stagnation and accumulation at the inlet. In addition, during continuous production operations, the ash inlet operates under high load for extended periods. Without effective maintenance and cleaning measures, the adhesion and accumulation of material can gradually lead to clogging of the ash inlet.

[0004] Currently, common solutions to the problem of clogging at the ash inlet of mixing tanks have many limitations. Manual unblocking is a relatively traditional method, requiring workers to manually clear the blockage using tools (such as iron bars or wooden sticks). This method is not only labor-intensive and physically demanding, but also inefficient. Furthermore, manual unblocking often requires the equipment to be stopped, further extending production downtime. In addition, manual operation carries certain safety risks, especially when cleaning large mixing tanks or ash inlets located at heights, where workers may face hazards such as falls from heights and dust pollution. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this utility model proposes a dredging structure for the ash inlet of a mixing tank.

[0006] A clearing structure for the ash inlet of a mixing tank includes a butterfly valve for opening and closing the powder passage and a relay bin disposed above the mixing tank and communicating with the ash inlet of the mixing tank, characterized in that: The inlet of the butterfly valve is connected to the powder metering hopper, and the outlet is connected to the relay bin, so as to control the falling of powder by batch discharge; A rotating scraper device is provided between the relay bin and the mixing tank. The rotating scraper device includes a rotary table and at least one scraper. Under power drive, the scraper rotates along the inner hole and inner wall of the relay bin to loosen and clear the falling powder. The inner wall of the relay compartment is welded with a support frame at intervals to reinforce the relay compartment and to cooperate with the scraper to scrape off the slab material attached to the scraper when the scraper rotates. The top of the relay compartment is equipped with an inspection port for manual inspection and maintenance.

[0007] Furthermore, in order to better realize this utility model, the rotary table is coaxially arranged at the axis position of the relay compartment, and the scrapers are installed radially and distributed at intervals along the circumference of the rotary table.

[0008] Furthermore, in order to better realize this utility model, the outer edge of the scraper forms a tiny gap fit or elastic fit with the inner wall of the relay compartment when rotating, so as to achieve sweeping and unblocking of the inner wall of the relay compartment.

[0009] Furthermore, in order to better realize this utility model, the support frame is arranged at intervals in the circumferential direction along the inner wall of the relay compartment to form an intermittent scraping boundary on the outer edge of the scraper, so as to improve the removal effect on the slab material attached to the scraper.

[0010] Furthermore, in order to better realize this utility model, the inspection port is provided with an openable sealing cover, and a sealing ring is provided between the sealing cover and the relay compartment.

[0011] Furthermore, in order to better realize this utility model, the rotating scraper device is provided with a power input shaft, which is connected to the rotary table, and the power input shaft is detachably connected to an external drive source, which is any one of an electric motor, a pneumatic motor, or a hydraulic motor.

[0012] Furthermore, in order to better realize this utility model, the butterfly valve and the rotating scraper device can be linked and controlled to open synchronously each time material is discharged and close synchronously when material is discharged.

[0013] The beneficial effects of this utility model are as follows: This invention addresses the problem of ash inlet blockage caused by moisture condensation and agitation splashes, leading to powder adhesion and caking. It reduces the probability of blockage at the source, ensuring a continuous and stable feed, and preventing production interruptions and efficiency losses due to downtime. It also reduces the resistance to dust retention at the ash inlet, accelerates the feed rate, matches the processing rhythm of the mixing tank, and improves the overall continuity of the production process. Simultaneously, the unblocking structure ensures a uniform and stable ash feed, providing a precise material base for the mixing process and guaranteeing consistent product quality.

[0014] Traditional blockage removal requires manual dismantling of pipes, hammering to clear blockages, or working near equipment, which is not only time-consuming and labor-intensive (especially for large-diameter mixing tanks), but can also increase labor costs due to frequent operations. The new unblocking structure enables automated or semi-automated unblocking, eliminating the need for real-time human monitoring and requiring only periodic maintenance, significantly reducing labor input. Through a sealed design or the use of dust collection devices, the unblocking structure reduces dust leakage during the unblocking process, improving operational safety. Attached Figure Description

[0015] Figure 1 This is a schematic front sectional view of the present invention; Figure 2 This is a partially enlarged schematic diagram of the main cross-section of this utility model; Figure 3 This is a partially enlarged top view of the present invention; Figure 4 This is an axonometric view of the present invention.

[0016] In the picture, 1. Butterfly valve, 2. Relay compartment, 3. Rotary scraper device, 4. Mixing tank, 5. Mixing shaft, 201. Inspection port, 202. Support frame, 301. Rotary table, 302. Scraper. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Figures 1-4 This is a specific embodiment of the present invention, which is a dredging structure for the ash inlet of a mixing tank. Because the ash inlet is connected to the mixing tank 4, the humidity inside the tank is high, and the mixing shaft 5 will splash mortar around the ash inlet during operation. As a result, the powder tends to clump around the outlet each time ash is fed in.

[0020] Each time powder metering is completed and ash is fed, butterfly valve 1 and rotary scraper device 3 are opened, and the powder in the metering hopper will enter the mixing tank 4 through relay bin 2. Driven by rotary table 301, the scraper 302 of rotary scraper device 3 rotates along the inner hole and the inner wall of relay bin 2, promptly loosening the powder to ensure smooth entry into the mixing tank 4 and preventing caking and blockage. After ash feeding is completed, butterfly valve 1 and rotary scraper device 3 are closed.

[0021] Meanwhile, the support frame 202 welded to the inner wall of the relay compartment 2 not only reinforces the relay compartment but also promptly removes the slab material adhering to the scraper 302, preparing for the next cycle. The inspection port 201 at the top facilitates manual inspection and maintenance to ensure smooth production.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A clearing structure for the ash inlet of a mixing tank, comprising a butterfly valve (1) for opening and closing the powder passage and a relay bin (2) disposed above the mixing tank (4) and connected to the ash inlet of the mixing tank (4), characterized in that: The inlet end of the butterfly valve (1) is connected to the powder metering hopper, and the outlet end is connected to the relay bin (2) to control the falling of powder by batch discharge; A rotating scraper device (3) is provided between the relay bin (2) and the mixing tank (4). The rotating scraper device (3) includes a rotary table (301) and at least one scraper (302). Under power drive, the scraper (302) rotates along the inner hole and inner wall of the relay bin (2) to loosen and clear the falling powder. The inner wall of the relay compartment (2) is welded with a support frame (202) at intervals to reinforce the relay compartment (2) and cooperate with the scraper (302) to scrape off the caking material attached to the scraper (302) when the scraper (302) rotates and passes by. The top of the relay compartment (2) is provided with an inspection port (201) for manual inspection and maintenance.

2. The unblocking structure of the ash inlet of the mixing tank according to claim 1, characterized in that: The rotary table (301) is coaxially positioned on the axis of the relay compartment (2), and the scrapers (302) are installed radially and distributed at intervals along the circumference of the rotary table (301).

3. The unblocking structure of the ash inlet of the mixing tank according to claim 2, characterized in that: When the outer edge of the scraper (302) rotates, it forms a small gap fit or elastic fit with the inner wall of the relay chamber (2) to achieve the sweeping and unblocking of the inner wall of the relay chamber (2).

4. The unblocking structure of the ash inlet of the mixing tank according to claim 1, characterized in that: The support frame (202) is arranged circumferentially along the inner wall of the relay bin (2) to form an intermittent scraping boundary on the outer edge of the scraper (302) to improve the removal effect on the slab material attached to the scraper (302).

5. The unblocking structure of the ash inlet of the mixing tank according to claim 1, characterized in that: The inspection port (201) is equipped with an openable sealing cover, and a sealing ring is provided between the sealing cover and the relay compartment (2).

6. The unblocking structure of the ash inlet of the mixing tank according to claim 1, characterized in that: The rotating scraper device (3) is equipped with a power input shaft, which is connected to the rotary table (301) and is detachably connected to an external drive source, which is any one of an electric motor, a pneumatic motor or a hydraulic motor.

7. The unblocking structure of the ash inlet of the mixing tank according to claim 1, characterized in that: The butterfly valve (1) and the rotating scraper device (3) can be linked for control so that they open synchronously each time material is discharged and close synchronously when the material is discharged.

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