Electro-hydraulic hybrid drive sand-mixing equipment
US11480040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Jan 28, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/49
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses electro-hydraulic hybrid drive sand-mixing equipment, including a skid base, an electric motor, a hydraulic pump, a discharge centrifugal pump, a suction centrifugal pump, a mixing tank, a dry additive system, a liquid additive system, and a sand auger system. The electric motor, the hydraulic pump, the discharge centrifugal pump, the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system are integrally skid mounted on the skid base. There are two electric motors, including a first electric motor and a second electric motor. The first electric motor drives the discharge centrifugal pump, and the second electric motor actuates the hydraulic pump, to drive the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system. The electric motor is an integrated variable-frequency drive electric motor. Beneficial effects: Two integrated variable-frequency drive electric motors are applied. First, the setup of an independent variable-frequency drive cabinet is effectively omitted, that is, the overall size of the sand-mixing equipmen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.