Impeller feeder for sintering material

Abstract

The utility model discloses a kind of for sintering material's impeller feeder, including impeller rotor, impeller rotor is arranged in the inner chamber of shell, shell top is equipped with feed inlet;Shell includes a pair of oppositely arranged first side plate and a pair of oppositely arranged second side plate, first side plate and second side plate are sequentially head to tail joint;First side plate is parallel to each other, and all with the axis of impeller rotor parallel;The utility model is transformed to the side plate on the upper half of shell, sets up first side plate parallel to each other, and make first side plate with the axis of impeller rotor parallel, to reduce the adhesion and accumulation of material in the inner wall of impeller feeder equipment, reduce artificial cleaning frequency and shutdown maintenance cost, effectively prolong the service life of equipment and improve operating efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of impeller feeders, specifically relating to an impeller feeder for sintering materials. Background Technology

[0002] An impeller feeder, also known as a rotary feeder valve or airlock, is a general-purpose feeding device that uses a motor to drive an impeller rotor to continuously and evenly transport materials from an upper hopper to a lower device. Its core function is to effectively isolate the airflow between the inlet and outlet by utilizing the sealed cavity formed by the rotor blades and the casing while feeding, thus acting as an airlock.

[0003] In the sintering production of the steel industry, the impeller feeder is one of the key pieces of equipment in the sintering machine batching system, responsible for the precise proportioning and conveying of various materials such as mixed materials, return ore, quicklime, and coke powder. Currently, traditional impeller feeders consist of a drive unit, a casing, and an impeller rotor. However, the materials used in sintering batching generally have characteristics such as high moisture content, high viscosity, and strong corrosiveness. In particular, quicklime is prone to deliquescence and caking after contact with air. Therefore, when using traditional impeller feeders to convey sintering batching materials, the materials tend to adhere to the inner wall of the equipment, accumulating from the bottom to the top, reducing the internal cavity volume and interrupting the continuous feeding. Summary of the Invention

[0004] The purpose of this invention is to provide an impeller feeder for sintering materials. By modifying the side plates of the machine casing, a first side plate is set that is parallel to each other and is made parallel to the axis of the impeller rotor, so as to reduce the adhesion and accumulation of materials on the inner wall of the impeller feeder.

[0005] The present invention adopts the following technical solution: An impeller feeder for sintering materials includes an impeller rotor, which is disposed in the inner cavity of a housing, and a feed inlet is provided at the top of the housing. The housing includes a pair of oppositely arranged first side plates and a pair of oppositely arranged second side plates, with the first side plates and the second side plates connected end to end in sequence; The first side plates are parallel to each other and are both parallel to the axis of the impeller rotor.

[0006] Furthermore, the second side plates are parallel to each other and are both perpendicular to the axis of the impeller rotor.

[0007] Furthermore, the bottom edge of the first side plate is on the same horizontal plane as the axis of the impeller rotor.

[0008] Furthermore, the impeller rotor includes blades, which are arc-shaped, and the curvature of the arc is consistent with the rotation direction of the impeller rotor.

[0009] Furthermore, scrapers are provided at the edges of the blades.

[0010] The beneficial effects of this utility model are as follows: By setting the first side plates of the casing to be parallel to each other and parallel to the axis of the impeller rotor, the upper part of the casing forms a regular feeding channel along the rotor axis. The material can fall directly and accurately into the grid cavity of the impeller rotor, avoiding the adhesion and accumulation of material caused by impact and oblique friction on the inner wall of the casing in the traditional feeding method. This ensures the continuity and uniformity of sintering material transportation, greatly reduces the frequency of manual cleaning of the equipment and downtime, reduces the corrosion and wear of the casing by the adhering material, effectively extends the service life of the equipment and reduces the overall operating cost. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention; Figure 2 This is the left view of the present invention; Figure 3 This is a schematic diagram of the blade structure in this utility model; Among them, 1. impeller rotor, 1-1. blade, 1-2. scraper, 2. casing, 3. feed inlet, 3-1. first side plate, 3-2. second side plate. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0013] An impeller feeder for sintering materials, such as Figure 1 and Figure 2 As shown, it includes an impeller rotor 1, which is disposed in the inner cavity of the casing 2, and the top of the casing 2 is provided with a feed inlet 3; The housing 2 includes a pair of oppositely arranged first side plates 3-1 and a pair of oppositely arranged second side plates 3-2, with the first side plates 3-1 and the second side plates 3-2 connected end to end in sequence; The first side plates 3-1 are parallel to each other and are both parallel to the axis of the impeller rotor 1.

[0014] This invention sets the first side plates 3-1 of the casing 2 to be parallel to each other and parallel to the axis of the impeller rotor 1, so that the upper part of the casing 2 forms a regular feeding channel along the axial direction of the impeller rotor 1. When the material falls, it can fall directly and accurately into the grid cavity of the impeller rotor 1, avoiding the adhesion and accumulation of material caused by impact and oblique friction on the inner wall of the casing in traditional feeding methods. This fundamentally solves the problem of sintering materials (especially quicklime that is prone to deliquescence and caking) accumulating from the bottom to the top on the inner wall of the casing 2, resulting in a reduction in the inner cavity volume and interruption of the feeding continuity; at the same time, it ensures the continuity and uniformity of the conveying of mixed materials, return ore and other materials, providing basic support for the accurate proportioning of the sintering machine batching system.

[0015] The second side plates 3-2 are parallel to each other and are perpendicular to the axis of the impeller rotor 1.

[0016] The second side plates 3-2 of this invention are parallel to each other and perpendicular to the axis of the impeller rotor 1, forming a regular rectangular channel structure in the upper part of the casing 2. This further optimizes the material feeding posture, ensuring that the material is evenly distributed along the axial direction perpendicular to the impeller rotor 1, reducing the contact area and friction probability between the material and the side plates and the inner wall of the casing 2, and enhancing the anti-adhesion effect. At the same time, the regular channel structure makes the feed flow rate easier to control, adapting to the conveying needs of different sintering materials and improving the equipment's adaptability to materials.

[0017] The bottom edge of the first side plate 3-1 is on the same horizontal plane as the axis of the impeller rotor 1.

[0018] In this invention, the bottom edge of the first side plate 3-1 is on the same horizontal plane as the axis of the impeller rotor 1, allowing the material to "fall" directly into the compartment instead of "slamming" or "scraping" it. This completely avoids the accumulation of material in the gap between the bottom of the first side plate 3-1 and the impeller rotor 1, eliminating the waste of compartment volume and the risk of material blockage caused by accumulation. At the same time, it ensures that each compartment can achieve full and uniform unloading, further improving the accuracy and stability of material conveying and reducing the dead corners for cleaning the equipment.

[0019] like Figure 3 As shown, the impeller rotor 1 includes blades 1-1, which are arc-shaped and the bending direction of the arc is consistent with the rotation direction of the impeller rotor 1.

[0020] This invention designs the blades 1-1 of the impeller rotor 1 as arc-shaped, with the curvature direction aligned with the rotation direction of the impeller rotor 1. During rotation, the arc-shaped blades provide a "wrap-like" support for the material within the cavity, reducing rigid friction and compression between the material and the surface of the blades 1-1, thus preventing material caking due to friction and compression (especially for highly viscous sintered materials). Simultaneously, the arc-shaped structure guides the material smoothly along the curved surface of the blades 1-1 during rotation, reducing material residue within the cavity, minimizing adhesion and accumulation, and also reducing the resistance during impeller rotor 1 rotation, saving motor energy and improving equipment operating efficiency. Scraper 1-2 is provided on the edge of blade 1-1.

[0021] This invention provides a scraper at the edge of the blade 1-1, so that the scraper 1-2 can actively scrape the inner wall of the housing 2 during the rotation of the blade 1-1. The scraper 1-2 can be made of polyurethane or rubber.

[0022] The working principle of this utility model is as follows: When working, the impeller feeder is started, and the sintering material enters the inner cavity of the casing 2 from the feed port 3. The sintering material falls into the grid cavity of the impeller rotor 1, and the sintering material in the grid cavity is transported to the discharge port at the bottom under the rotation of the impeller rotor 1.

[0023] In summary, in this invention, by first setting the first side plate 3-1 of the casing 2 to be parallel to each other and parallel to the axis of the impeller rotor 1, and setting the second side plate 3-2 to be parallel to each other and perpendicular to the rotor axis 1, a regular feeding channel is constructed, optimizing the feeding posture of the material and reducing its impact and friction with the inner wall of the casing, thus inhibiting the adhesion of high-humidity, high-viscosity sintering materials (such as quicklime that is prone to deliquescence and caking) from the source; furthermore, by aligning the bottom part 3-1 of the first side plate with the axis of the impeller rotor 1, the material falls accurately into the impeller grid cavity, avoiding gap accumulation. This avoids volume waste and blockage. Meanwhile, by setting the blades 1-1 to an arc shape that is consistent with the rotation direction of the impeller rotor 1, the material caking and residue in the cavity are reduced through "wrapping" bearing, and the rotation resistance is reduced to save energy. Finally, by setting scrapers 1-2 on the edge of the blades, the residual material on the inner wall of the casing 2 is actively cleaned in real time, completely eliminating the problem of material accumulating from the bottom to the top, greatly reducing the frequency of manual cleaning and downtime maintenance costs, reducing the corrosion and wear of the casing 2 by the adhering material, effectively extending the service life of the equipment and improving operating efficiency.

Claims

1. An impeller feeder for sintering materials, characterized in that, Includes an impeller rotor (1), which is disposed in the inner cavity of the housing (2), and the top of the housing (2) is provided with a feed inlet (3). The housing (2) includes a pair of oppositely arranged first side plates (3-1) and a pair of oppositely arranged second side plates (3-2), with the first side plates (3-1) and the second side plates (3-2) connected end to end in sequence; The first side plates (3-1) are parallel to each other and are both parallel to the axis of the impeller rotor (1).

2. The impeller feeder for sintering materials according to claim 1, characterized in that, The second side plates (3-2) are parallel to each other and are perpendicular to the axis of the impeller rotor (1).

3. An impeller feeder for sintering materials according to claim 2, characterized in that, The bottom edge of the first side plate (3-1) is on the same horizontal plane as the axis of the impeller rotor (1).

4. An impeller feeder for sintering materials according to claim 3, characterized in that, The impeller rotor (1) includes blades (1-1), which are arc-shaped and the bending direction of the arc is consistent with the rotation direction of the impeller rotor (1).

5. An impeller feeder for sintering materials according to claim 4, characterized in that, The blade (1-1) is provided with a scraper (1-2) at its edge.

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