A device for preventing clogging of a spray disc by atomized powder under high pressure

Abstract

The utility model discloses a kind of high-pressure state under atomized powder anti-blocking spray disc device, the device includes: high-pressure connector connects high-pressure spray disc, and high-pressure spray disc lower plane is equipped with the device formed by 8 fan-shaped nozzles with angle.This spray disc device increases nozzle interface number by changing spray disc waterway passage, increases to 8 fan-shaped nozzles, effectively increases atomized water flow in high-pressure water atomized powder process and full coverage next time broken flush to atomization cylinder, prevent atomized powder adhesion in atomization chamber inner wall and lead to block, reduce atomization process block, scalding loss problem, reduce in narrow space dismounting operation frequency, reduce artificial cleaning block difficulty, compared with original spray disc, the high-pressure spray disc after improvement reduces dismounting cleaning block 3 times per shift, improves atomized powder powdering rate 15%.

Description

Technical Field

[0001] This utility model belongs to the field of powder metallurgy technology, specifically relating to a device for preventing clogging of atomized powder spray disc under high pressure. Background Technology

[0002] In the field of powder metallurgy production, the atomization of high-temperature alloy solutions into powder is an essential process. Due to production process requirements, the pressure within the atomization chamber fails to reach a slight negative pressure during the casting of molten metal at high temperatures. This results in insufficient water pressure impact during casting, unbalanced airflow within the atomization chamber leading to molten metal blockage, damage to the spray plate, and the need for manual disassembly and cleaning in confined spaces. This hinders continuous production and increases production costs. Addressing the issue of spray plate blockage increases the difficulty of on-site operations and also reduces labor costs for continuous production. Therefore, achieving safe and efficient production in continuous cyclical production is a key requirement for the powder metallurgy industry. Utility Model Content

[0003] This utility model provides a high-pressure atomized powder anti-clogging spray disc device, which aims to solve the problems of clogging and burn-out that often occur during the process of pouring atomized components of molten metal.

[0004] Therefore, the present invention adopts the following technical solution: A high-pressure atomized powder anti-clogging spray disc device includes a high-pressure connector, fixing screw holes, a high-pressure spray disc, a graphite ring, an internal water channel, and a fan-shaped nozzle.

[0005] The system includes a high-pressure connector, with one end connected to the water inlet and the other end connected to the high-pressure spray plate. To prevent leakage at the hard metal-to-metal contact surface under high pressure, a relatively soft 2mm thick copper O-ring is installed to reduce the frequency of leakage. A graphite ring is placed in the 80mm diameter hole in the center of the high-pressure spray plate to prevent the metal material of the high-pressure spray plate from being burned through the hole during the molten metal pouring process.

[0006] The high-pressure spray disc remains undeformed even after prolonged contact with molten metal at temperatures of 1700℃-2000℃. The lower surface of the high-pressure spray disc has eight equally spaced M12 threaded holes with a 38° inward tilt angle, which connect to the fan-shaped nozzles. The high-pressure spray disc has internal water channels, and these eight M12 threaded holes on the lower surface are located within these channels. The internal water channels are aligned, with the high-pressure connectors connecting to the same straight end to form a passageway.

[0007] The beneficial effects of this utility model are as follows: By modifying the high-pressure spray disc structure and increasing the number of nozzles, the water volume during water atomization was increased by 5% compared to the original, ensuring sufficient water flow and stable water pressure during atomization. The high-pressure water fully covers the atomization area, increasing the impact force of the water flow during atomization. The fan-shaped water flow breaks up the molten metal fluid, resulting in more concentrated powder particles. The improved high-pressure spray disc reduces the need for disassembly and cleaning of blockages by 3 times per shift compared to the original, increases the powder formation rate by 15%, significantly reduces the labor intensity of employees, effectively improves safe production, and achieves the goal of cost reduction and efficiency improvement. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a half-sectional view of the present invention; Figure 4 yes Figure 2 Sectional view of CC; Figure 5 yes Figure 4 Sectional view of DD; Figure 6 yes Figure 2 Sectional view of BB; In the diagram: 1—High-pressure connector; 2—Fixing screw hole; 3—High-pressure spray disc; 4—Graphite ring; 5—Built-in water channel; 6—Fan-shaped nozzle. Detailed Implementation

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-6 As shown, a high-pressure atomized powder anti-clogging spray disc device includes a high-pressure connector 1, a fixing screw hole 2, a high-pressure spray disc 3, a graphite ring 4, an internal water channel 5, and a fan-shaped nozzle 6.

[0010] The high-pressure spray disc 3 is vertically fixed to the atomizing inner cylinder by the screw hole 2 on the outer edge to ensure that it is not shaken under the action of high-pressure water; the 80mm diameter hole in the middle of the high-pressure spray disc 3 holds a graphite ring 4 to protect the spray disc from being burned during the pouring of molten metal; the high-pressure connector 1 has an O-ring copper gasket in the middle to connect the corresponding ends of the high-pressure spray disc 3 on the same straight line to form a preliminary water channel.

[0011] The high-pressure spray disc 3 has an internal water channel 5 that connects to eight M12 threaded holes on its lower surface, forming a high-pressure water passage that connects to the fan-shaped nozzle 6. The internal water channel 5 is characterized by its resistance to deformation and cracking under high pressure and high temperature. The built-in water channel 6 has 8 M12 threaded holes with an inward inclination angle of 38° on its lower plane. These holes can be aligned with the nozzles 6 on the same straight line, and can converge on the same central axis at different heights, thus forming the initial and final atomization characteristics.

Claims

1. A device for preventing clogging of atomized powder spray disc under high pressure, characterized in that, Includes high-pressure connector (1), high-pressure spray disc (3), graphite ring (4), built-in water channel (5), and fan-shaped nozzle (6); One end of the high-pressure connector (1) is connected to the water inlet and the other end is connected to the high-pressure spray plate (3). A graphite ring (4) is placed in the 100mm diameter hole in the middle of the high-pressure spray plate (3) to prevent the high-pressure spray plate (3) from being burned through the hole in the middle of the high-pressure spray plate during the molten metal casting process. The lower plane of the high-pressure spray disc (3) is divided into 8 M12 nozzle thread holes with an inward inclination angle of 38° and connected to the fan-shaped nozzle (6). Water channels are formed inside the high-pressure spray disc (3). The 8 M12 thread holes with an inward inclination angle of 38° on the lower plane of the spray disc are on the square water channel passage. The water channels of the high-pressure spray disc are connected to the high-pressure connector (1) at the same straight end to form a passage.

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