Special melt gear pump for Lyocell fiber device
A gear pump and melt technology, used in pumps, pump components, rotary piston pumps, etc., can solve the problems of inability to meet the requirements and the temperature of the sheared material to increase, and achieve stable conveying pressure, high temperature control accuracy, and avoidance. The effect of carbonization
Pending Publication Date: 2018-06-08
郑州沃华机械有限公司
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Problems solved by technology
[0004] However, due to the large shear force generated during rapid extrusion of high-temperature plastic melt, the temperature of the sheared material rises sharply. For the temperature-sensitive Lyocell fiber production process, the existing melt pump cannot meet the requirements at all.
Method used
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Embodiment Construction
[0023] like Figure 1-Figure 5As shown, this specific embodiment adopts the following technical solutions: it includes a housing 1, a driving gear shaft 2, a driven gear shaft 3, a front end cover 4, a rear end cover 5, a right-handed sealing assembly 6, a left-handed sealing assembly 7, a front bearing shell 8. Rear bearing bush 9, pump body temperature probe 10, front bearing temperature probe 11, rear bearing temperature probe 12, driving shaft rotary joint 13, driven shaft rotary joint 14, front pressure probe 15 and rear pressure probe 16, shell The body 1 is provided with a driving gear shaft 2 and a driven gear shaft 3, and the two ends of the housing 1 are respectively provided with a front end cover 4 and a rear end cover 5, and the driving gear shaft 2 and the driven gear shaft 3 are connected with the front end cover 4 and the rear end cover. Right-handed seal assembly 6 and left-handed seal assembly 7 are respectively arranged at the junction of 5, front bearing bu...
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The invention discloses a special melt gear pump for a Lyocell fiber device, and relates to the field of melt gear pumps. A right-handed rotation seal assembly is arranged at a connecting part of a driving gear shaft and a front end cover; a left-handed rotation seal assembly is arranged at a connecting part of a driven gear shaft and a rear end cover; a front bearing bush is arranged between thedriving gear shaft and a shell; a rear bearing bush is arranged between the driven gear shaft and the shell; a pump body temperature-measuring probe is arranged in the middle of the shell; a front bearing temperature-measuring probe and a rear bearing temperature-measuring probe are arranged on two ends of the shell; one ends of the driving gear shaft and the driven gear shaft are connected with adriving shaft rotating joint and a driven shaft rotating joint; and a front pressure probe and a rear pressure probe are arranged on a front end cover and a rear end cover on two ends of the shell. According to the special melt gear pump for a Lyocell fiber device, the temperature control accuracy is high, the effect is good, dead angles are eliminated maximally since a special cavity runner design is adopted, carbonization and deterioration of materials are avoided, and the special melt gear pump for a Lyocell fiber device has a self-lubricating property, so that a certain life is ensured when the material lubricity is weaker.
Description
technical field [0001] The invention relates to a melt gear pump specially used for a Lyocell fiber device, belonging to the technical field of melt gear pumps. Background technique [0002] Lyocell fiber (that is, soluble fiber) is known as the green fiber of the 21st century. It uses N-methylmorpholine-N-oxide (NMMO) as a solvent for wet-spun regenerated cellulose fiber. The waste can be degraded naturally, 99.5% of the amine oxide solvent in the production process can be recycled and reused, the production emission is extremely low and the end product can be naturally degraded are its main features. However, since NMMO used as a solvent in its production process will trigger a degradation reaction under certain conditions, and may cause a violent chain reaction (explosion), there are extremely stringent technical requirements for its production equipment. [0003] The melt gear pump used for conveying and pressurizing is one of the important equipment. The production pro...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04C2/18F04C13/00F04C15/00
CPCF04C2/18F04C13/001F04C15/00F04C15/0026F04C15/0088
Inventor 李福勇王杰
Owner 郑州沃华机械有限公司