CN207942599U - A kind of modified extruder pelletizing case - Google Patents

Abstract

The utility model is related to a kind of modified extruder pelletizing casees.It includes round blank cylinder and the water inlet and water outlet that are located in blank cylinder, the head grinding tool being assemblied in blank cylinder, water ring box part is located at the front of extrusion die material extrusion hole exit end and is equipped with the cooling catch that blank cylinder cross section can be sheltered to one third to half size on the position of extrusion die in blank cylinder；Being located at the assembly of material extrusion hole exit end on extrusion die, there are one the containment flaps of annular.The utility model box house not only provides water ring road to convey particle, and can in time be cooled down to extruder head mold discharge port, to overcome soft material, harmful effect of the sizing to head, to make up the deficiency of existing product.

Description

A kind of modified extruder pelletizing case

Technical field

The utility model is related to a kind of modified extruder pelletizing casees.

Background technology

Material, the energy and information are three big industrial pillars of current world economy development, the serious shadow of development of material industry Ring the development of modern technologies.Whenever a kind of new material comes out, it can not only cause the change of the mode of production, can also push society Progress and human civilization promotion.Today's society economic technology constantly flourishes, and high molecular material is increasingly becoming and wood It is each to be widely used in production, national defence and scientific research for one of the four large bodies system of the world today of material, metal and silicate material and title A field, and processing of high molecular material industrial system covering extensive fields is formd, it is played in national defense construction and national economy Important role.With the continuous improvement of industrial level and scientific and technological level, high molecular material is constantly sent out by traditional organic material Exhibition is the high performance material of high intensity, high tenacity, high temperature resistant, resistance to extreme condition, and to light, electricity, magnetic, biology and separation The new function material of effect extends, gradually become modern aerospace, electronic engineering, communication, health care, bioengineering and The indispensable new material such as environmental protection.

The key equipment of large-scale ethylene and deep processing device (polyethylene, polypropylene etc.) is exactly large-sized squeezing granulation machine, this A little key equipments are monopolized by a small number of producer's height of the U.S., Germany, Japan for a long time, they control many states including China Market, price and the delivery date of family's processing of high molecular material.This has seriously affected the investment of China's petrochemical industry project project and has built If progress, the fast development of emerging petrochemical industry is constrained.In recent years, China's petrochemical industry is dedicated to grinding for underwater pelletizer Study carefully, the importance of its research is also gradually attracted people's attention.And in forming process, temperature, pressure, stress is for polymerization The final molding of object has strong influence, numerical simulation that various external environments can be predicted for template and molding influence journey Degree has theory directive significance for the design of underwater pelletizer.

It is a kind of key equipment in petrochemical industry, chemical fibre industry production, it and gas that underwater pelletizer, which summarizes underwater cutpellet equipment, It flows comminutor and water spray comminutor is similar, the difference is that it has one stable flow to flow through die face, and be in direct contact with die face. The size of pelletizing room is just enough to make grain-cutter to be freely rotatable, and to cross die face without limiting flow be degree.Molten polymer is from mouth mold It squeezes out, rotating knife cuts pellet, and pellet takes pelletizing room out of by the water Jing Guo temperature adjustment and enters centrifugal dryer.In drier, Water is flow back to basin, cooling and Recycling；Pellet removes moisture by centrifugal dryer.

Water ring is formed in pelletizing case by high-pressure hydraulic pump in common underwater cutpellet case, the material granule that cutter is cut into Row conveys and cools down.The disadvantage is that being easy to cause to be adhered to cause not product appearance for the larger particle that the material is soft of viscosity Good influence, and be adhered once being formed, it can result in blockage to extrusion die mouth, influence discharging speed, yield is reduced.

Utility model content

The goal of the invention of the utility model provides a kind of modified extruder pelletizing aiming at the defect of existing product Case, which not only provides water ring road to convey particle, and can in time be cooled down to extrusion die discharge port, with gram Admit defeated material, harmful effect of the sizing to head, to make up the deficiency of existing product.

What the technical solution of the utility model was realized in：

A kind of modified extruder pelletizing case of the utility model, it includes round blank cylinder, and be located in blank cylinder into The mouth of a river and discharge port, the head grinding tool being assemblied in blank cylinder, it is characterised in that：Water ring box part is located at head in blank cylinder The front of mold material extrusion hole exit end is equipped with close to the position of extrusion die and blank cylinder cross section can shelter to three/ One arrives the cooling catch of half size；Being located at the assembly of material extrusion hole exit end on extrusion die, there are one the leakproofs of annular Catch can stop flow by being revealed between extrusion die and blank cylinder gap.

The beneficial effects of the utility model are：The utility model is simple in structure, easy to use, the cooling catch knot of setting Structure can make to form different flows in blank case, and when high pressure water enters water ring case through water inlet, annular water flow is formed in water channel, Cooling catch stops that a part of flow is poured and is filled near cutter, and effective temperature-reducing is carried out to new particle, can to the particle that cuts into Row conveys and cools down, and particle that can be freshly extruded to extrusion die in time cools down, and prevents from being adhered.And containment flaps are set, It can then stop that flow passes through extrusion die and the gap leak of blank case.And by increasing by two kinds of baffle device for water, it can be effectively improved The problems such as material is adhered in water ring case, and discharging is uneven.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Fig. 2 is that the head grinding tool described in the utility model embodiment improves schematic diagram with blank barrel structure.

In figure：1 blank cylinder, 2 water inlets, 3 water outlets, 4 cooling catch, 5 containment flaps, 6 head grinding tools.

Specific implementation mode

The utility model is further described below in conjunction with attached drawing：

As shown in Figure 1, 2, a kind of modified extruder pelletizing case of the utility model embodiment, it includes round blank cylinder 1, With the water inlet 2 and water outlet 3 being located in blank cylinder, the head grinding tool 6 being assemblied in blank cylinder 1, the water ring case in blank cylinder 1 Part is equipped with positioned at the front of 6 material extrusion hole exit end of extrusion die close to the position of extrusion die 6 can be transversal by blank cylinder Face shelters from one third to the cooling catch 4 of half size；It is located at material extrusion hole exit end on extrusion die 6 to assemble There are one the containment flaps 5 of annular, and flow can be stopped by being revealed between extrusion die and barrel assembly gap.

When water inlet high pressure water inputs blank case when utility model works, by water channel formation water ring, cool down baffle mesh Be to distribute a part of water in water ring it is made to be poured onto near cutter, to reduce material temperature, prevent from being adhered, containment flaps It is fixed on above water ring case extrusion die, stops that water ring passes through mold and hopper gap leakage with this.By increasing by two kinds of gears The problems such as water installations can be effectively improved material in water ring case and be adhered, and discharging is uneven.

Claims (3)

1. a kind of modified extruder pelletizing case, it includes round blank cylinder, and the water inlet and water outlet being located in blank cylinder, The head grinding tool being assemblied in blank cylinder, it is characterised in that：Water ring box part is located at extrusion die material extrusion hole and goes out in blank cylinder The front of mouth one end is equipped with close to the position of extrusion die and can blank cylinder cross section be sheltered from one third to half The cooling catch of size；Being located at the assembly of material extrusion hole exit end on extrusion die, there are one the containment flaps of annular.

2. a kind of modified extruder pelletizing case according to claim 1, it is characterised in that：It is located on extrusion die and squeezes Expect that there are one the containment flaps of annular for the assembly of hole exits one end.

3. a kind of modified extruder pelletizing case according to claim 1, it is characterised in that：The water ring case portion in blank cylinder Divide and is equipped with and blank cylinder cross section can be hidden close to the position of extrusion die positioned at the front of extrusion die material extrusion hole exit end Block one third to half size cooling catch.