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Wear pump

A wear-resistant pump and pump body technology, which is applied in the direction of pumps, pump components, non-variable pumps, etc., can solve problems such as difficulty in manufacturing larger-sized slurry pumps, difficulty in ejecting molds, and damage to molds and products, and achieves Prevents leakage, eases mold release, and improves wear resistance

Inactive Publication Date: 2015-12-30
肖琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the diameter of the discharge port of the pump reaches 150mm, it is difficult for the mold to come out of the product during the demoulding operation, and it is very easy to cause damage to the mold and the product
Therefore, it is difficult to manufacture larger size slurry pumps with this technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 , figure 2 , image 3 As shown in the figure, the pressurized water chamber 1 is divided into two parts by the A-A plane, the front shell 2, the front lining 3 and the suction port 8 are on the same side of the A-A plane, and the rear shell 5 and the rear lining 6 are on the other side of the A-A plane. Side; the front inner lining 3 and the front shell 2 are manufactured separately during manufacture, and can be folded between the two; the rear inner lining 6 and the rear inner lining metal skeleton 7 are manufactured as an inseparable whole. The shaft φ2 is processed on the metal skeleton 7 of the rear lining, and the hole φ1 is processed on the rear shell 5. When the rear lining 6 is installed in the rear shell 5, φ1 and φ2 cooperate with each other. The matching type is clearance fit, and the fit clearance is 0.3 -0.5mm.

[0025] The sealing gasket 4 arranged on the A-A plane is made of rubber material with a thickness of 0.3-6mm. If it is too thin...

Embodiment 2

[0030] like Figure 4 As shown, in this embodiment, the front inner liner 3 and the front shell 2 are manufactured as an inseparable whole in the figure. The back lining 6 and the back lining metal frame 7 are manufactured as an inseparable whole. A shaft φ2 is processed on the metal skeleton 7 of the rear lining, and a hole φ1 is processed on the rear shell 5. When the rear lining 6 is installed in the rear shell 5, φ1 and φ2 cooperate with each other. The type of fit is a clearance fit, and the fit clearance is 0.2 mm-0.4mm. .

[0031] On the flow surfaces of the front lining 3 and the rear lining 6, ceramic sheets 15 are respectively arranged, and the ceramic sheets 15 can be a whole, or can be assembled by a plurality of ceramic sheets, and the ceramic sheets 15 are combined with a composite material through a bonding agent. into a whole.

[0032] Ejection thread 11 is arranged on the corresponding position of rear casing 5, when rear lining 6 needs to be ejected from ...

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PUM

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Abstract

A wear pump comprises a pumping chamber, a suction inlet formed in the axis of a spindle, and a discharge opening led out from the pumping chamber. The wear pump is characterized in that a pump body is divided into two parts by an A-A plane which is perpendicular to the axis of the spindle and passes through the discharging opening the pumping chamber, the suction inlet, a front liner and a front shell are arranged at the same side of the A-A plane, and a rear liner and a rear shell are arranged at the other side of the A-A plane; the front liner and the rear liner are mainly made of a composite wear-resistant material, and the front shell and the rear shell are made of metal; a hole fai 1 coaxial with the spindle is formed in the rear shell, a shaft fai 2 coaxial with the spindle is arranged on the rear liner, and the fai 1 is matched with the fai 2.

Description

technical field [0001] The invention relates to the field of rotary power pump equipment, in particular to a centrifugal pump for transporting abrasive solid-liquid two-phase flow. Background technique [0002] In industries such as mineral processing, it is often necessary to use centrifugal pumps to transport some abrasive solid-liquid two-phase flows. These centrifugal pumps are currently mainly made of wear-resistant alloys, but in many cases, the flow of wear-resistant pumps made of wear-resistant alloys The life of parts often cannot meet the requirements of use. [0003] CN202851423U discloses a kind of wear-resistant pump body and pump cover proposed by the inventor. Practice shows that the service life of the wear-resistant pump manufactured by this technology is significantly improved compared with the wear-resistant pump made of wear-resistant alloy. However, practice also shows that there are still some technical obstacles in the process of manufacturing large-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/02
Inventor 肖琼
Owner 肖琼
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