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Novel liquid metal transfer pump

A technology for conveying liquid metal and cadmium is applied in the field of new liquid metal conveying pumps, which can solve the problems of crystal blockage and harm, and achieve the effect of prolonging the service life and ensuring the integrity.

Active Publication Date: 2009-06-10
ZHUZHOU SMELTER GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a liquid metal cadmium delivery pump, which can realize the pump seal delivery of cadmium, and solve the problem of crystallization blockage of cadmium liquid in the delivery process, and avoid the harm of cadmium oxidation to laborers

Method used

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  • Novel liquid metal transfer pump

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A liquid metal cadmium transfer pump such as figure 1 As shown, it includes a pump casing 7, a drive shaft, and a vane. The pump casing 7 is an upright cylinder, and the upper section outside the cylinder is covered with an insulating layer 5, and the insulating layer 5 covers the part of the cylinder exposed to the air. The transmission shaft is the screw shaft 3 installed in the cylinder, the screw shaft 3 is driven by the pulley 1 arranged at its tail end, the blade is the screw blade 6 surrounding the screw shaft, and the screw shaft 3 is driven by the transmission bearing fixed on the top of the cylinder Support, the transmission shaft is supported by the transmission bearing seat 2 coaxially coupled with the cylinder. The sealing impeller 4 is used to seal the transmission bearing seat 2 and the cylinder, and the sealing impeller 4 is a disc with three blades whose blade angles are opposite to those of the helical blades.

Embodiment 2

[0023] A liquid metal cadmium transfer pump such as figure 1 As shown, it includes a pump casing 7, a drive shaft, and a vane. The pump casing 7 is an upright cylinder, and the upper section outside the cylinder is covered with an insulating layer 5, and the insulating layer 5 covers the part of the cylinder exposed to the air. The transmission shaft is the screw shaft 3 installed in the cylinder, the screw shaft 3 is driven by the pulley 1 arranged at its tail end, the blade is the screw blade 6 surrounding the screw shaft, and the screw shaft 3 is driven by the transmission bearing fixed on the top of the cylinder Support, the transmission shaft is supported by the transmission bearing seat 2 coaxially coupled with the cylinder. The transmission bearing seat 2 and the cylinder are sealed by a sealing impeller 4, which is a disc with four blades whose blade angles are opposite to those of the helical blades.

Embodiment 3

[0025] A liquid metal cadmium transfer pump such as figure 1 As shown, it includes a pump casing 7, a drive shaft, and a vane. The pump casing 7 is an upright cylinder, and the upper section outside the cylinder is covered with an insulating layer 5, and the insulating layer 5 covers the part of the cylinder exposed to the air. The transmission shaft is the screw shaft 3 installed in the cylinder, the screw shaft 3 is driven by the pulley 1 arranged at its tail end, the blade is the screw blade 6 surrounding the screw shaft, and the screw shaft 3 is driven by the transmission bearing fixed on the top of the cylinder Support, the transmission shaft is supported by the transmission bearing seat 2 coaxially coupled with the cylinder. The sealing impeller 4 is used to seal the transmission bearing seat 2 and the cylinder, and the sealing impeller 4 is a disc with 8 blades whose blade angles are opposite to those of the helical blades.

[0026] The invention works like this:

[0...

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Abstract

The present invention related to a fluent metal delivery pump which includes a pump case, a drive capstan and blade, characterized in that the pump case is a upright cylinder; the drive capstan is a screw axis mounted inside the cylinder; and the blade is helical blade surrounding the screw axis; the screw axis is supported by a gear bearing that fixed above the cylinder; and a drive capstan is supported by the gear bearing seat that coaxially connected with the cylinder. sealing blade wheel is provided in the invention which can rotate when driven by the drive capstan and generate centrifugal pull to form some certain negative-pressure inside the pump case, realize dynamic sealing of the pump, prevent cadmium liquor from overbrimming from the gear bearing seat. A structure that utilizing part above the liquid level of the cylinder clad the insulating course is adopted in the invention, so that cadmium liquor remained inside the pump will not cooled quickly after pump stopped which can prevent the remained cadmium liquor from quick crystallization and make mechanical damage to each components, and can prolong service life of the pump.

Description

technical field [0001] The invention relates to a pump, in particular to a liquid metal delivery pump. Background technique [0002] Metal cadmium has a melting point of 321.03°C, a boiling point of 765°C, and a relative density of 8.642. Cadmium is carcinogenic. The International Agency for Research on Cancer (IARC) classifies cadmium as a first-class human carcinogen. Because cadmium is easily oxidized in the air to form brown cadmium oxide, especially liquid cadmium, when it meets the air, it will produce a yellow smoke, that is, cadmium oxide gas, which is very easy to cause harm to the human body. In industrial production, the protection measures for workers One is how to avoid human exposure to cadmium. However, in the prior art, such as in the fire refining process of cadmium, the cadmium transport is manually operated, that is, the operator scoops the cadmium solution from the smelting pot into the rough cadmium mould. It is necessary to ensure that each scoop of c...

Claims

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Application Information

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IPC IPC(8): F04D7/06F04D1/04F04D29/42F04D29/04F04D29/08
Inventor 何纯海王瑞红
Owner ZHUZHOU SMELTER GRP
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