CN201427392Y

CN201427392Y - Fusant filtering system

Info

Publication number: CN201427392Y
Application number: CN2009200543642U
Authority: CN
Inventors: 张春华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-10
Filing date: 2009-04-10
Publication date: 2010-03-24
Anticipated expiration: 2019-04-10

Abstract

The utility model provides a fusant filtering system, comprising a filtering round disc, a filtering screen lining plate, a filtering screen, a discharging mold plate, a feeding mold plate, a round disc driving component, a backwashing part, a driving oil cylinder part, a screen changing pressing door part, a tension bolt part and a cushion plate, the filtering screen lining plate and the filtering screen are arranged in a filtering hole of a filtering round plate, the filtering round plate is arranged between the feeding mold plate and the discharging mold plate eccentrically; the round discdriving component is fixed above the discharging mold plate, the backwashing part is arranged at the right side of the discharging mold plate, the screen changing pressing door part is fixed at the left side of the discharging mold plate, and the driving oil cylinder part is fixed on the discharging mold plate. After adopting the technical proposal, the fusant filtering system has the advantages of larger filtering area and no pressure fluctuation and quality in the filtering screen conversion process.

Description

A kind of melt filtering system

Technical field:

The utility model relates to the plastic sheeting technical field of processing equipment, refers in particular to a kind of full-automatic, technology continuous fused mass filtration system.

Background technology:

At present, melt filtering system is divided into two kinds, a kind of is discontinuous type filter, another kind is the continuous type filter, discontinuous type filter is non-continued operation mode, and filter effect is relatively poor, and precision is generally greater than 300um, be applicable to the time interval of changing filter screen than in the long production, the replacing of screen pack is implemented during the production schedule is stopped work or changed product usually.As if a kind of so-called continous way bicylindrical filter is arranged now is than above-mentioned discontinuous filter advanced person, but, owing to during this replacing filter screen, melt is united two into one, make system pressure sharply increase, if the operating time is longer, as 15-30 minute, pressure raise and causes that temperature raises, can cause melt to burn, this type of material enters and often causes in the melt-flow that film is torn, and therefore, it makes unstable product quality.

Summary of the invention:

The purpose of this utility model is to overcome the deficiency of above-mentioned existing technology, provides a kind of filter area bigger, in the filter screen transfer process without any the melt filtering system of pressure oscillation and quality problems.

For achieving the above object, the technical scheme that the utility model provides is: a kind of melt filtering system, include and filter disk, filter screen liner plate, filter screen, material discharging mould, charging template, disk driver part, the back washing parts, drive cylinder part, draping compresses door part, turnbuckle parts, backing plate, filter screen liner plate, filter screen are contained in the filtration cave of filtering disk, filter disk off-centre between charging template and material discharging mould; The disk driver part is fixed on the top of material discharging mould, and the back washing parts are contained in the material discharging mould right side, and draping compresses door part and is fixed on the material discharging mould left side, drives cylinder part and is fixed on the material discharging mould.

Described back washing parts include back washing valve body, back washing piston, back washing floating junction, back washing oil cylinder, back washing hole switch valve shaft, the back washing valve body is contained in the material discharging mould, the back washing piston is to be contained in the back washing valve body, one end of back washing floating junction is connected with the back washing piston, the other end is connected with the back washing oil cylinder, and back washing hole switch valve shaft is connected with the back washing piston.

After the utility model adopts technique scheme, filtering disk rotates in the opinion of charging template, material discharging mould, sealing between these three parts need not seal, but realize by very little gap and very smooth, hard surface, this structure guarantees that all parts that contact with melt can not be subjected to ambient influnence, as oxidation.

Filter screen of the present utility model distributes to be fixed on and filters on the disk, and follow the rotation of filtering disk, pass through melt flow channel, when the melt-flow screen pack, foreign particle is barred from this, make that filtering disk rotates about about 1 degree, therefore contaminated screen pack is continuously removed melt flow channel, and clean filter screen moves into continuously, based on this working method, the pressure of filtration system operation keeps constant and technology keeps continuously, clean for used filter screen (dirty filter screen) contrary and to occur in it and be about to enter before the melt flow channel foul on the screen pack by a high pressure, contrary purging system, wash off and clean again, therefore, in the filter screen transfer process without any pressure oscillation and quality problems.

Whenever in sum, the utlity model has following advantage: 1, the stepping of filter element has only a direction, produces a kind of self-cleaning process, furtherly,, with the contacting of atmosphere, has not avoided the degraded raw material to enter in the melt-flow like this.2, do not use the seal of rapid wear, the dead point can not produce.3, clean filter screen automatically, so the work area of filter screen can not reduce and improve fully the utilization rate of filter screen.4, filter is easy to operate, and screen replacing is easy, does not have danger, and is noiseless to producing, and do not have to hinder.5, this filter is constant in technical process, automatically carries out under the constant pressure.

Description of drawings:

Fig. 1 is this melt filtering system explosive view.

Fig. 2 is back washing parts, material discharging mould and filters disk syndeton schematic diagram.

Fig. 3 is a back washing modular construction cutaway view.

The specific embodiment:

See shown in accompanying drawing 1, the accompanying drawing 2, include and filter disk 1, filter screen liner plate 2, filter screen 3, material discharging mould 4, charging template 5, disk driver part 6, back washing parts 7, drive cylinder part 8, draping compresses door part 9, and turnbuckle parts 10, backing plate 11, filter screen liner plate 2, filter screen 3 are contained in the filtration cave of filtering disk 1, filter disk 1 off-centre between charging template 5 and material discharging mould 4, use the preload bolted during its assembling.Disk driver part 6 is fixed on the top of material discharging mould 4, and back washing parts 7 are contained in material discharging mould 4 right sides, and draping compresses door part 9 and is fixed on material discharging mould 4 left sides, drives cylinder part 8 and is fixed on the material discharging mould 4.See shown in Figure 3, described back washing parts include back washing valve body 71, back washing piston 72, back washing floating junction 73, back washing oil cylinder 74, back washing hole switch valve shaft 75, back washing valve body 71 is contained in the material discharging mould 4, back washing piston 72 is to be contained in the back washing valve body 71, one end of back washing floating junction 73 is connected with back washing piston 72, the other end is connected with back washing oil cylinder 74, and back washing hole switch valve shaft 75 is connected with back washing piston 72.

The present embodiment most important character is two filtration disks between the input and output material template.Filter disk stepping each time, new filtering surface enters melt flow channel, because almost constant and big filter screen working face in runner, so realized the technical process that melt pressure is constant, has given very big raising like this on filtering technique.

The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.

Claims

1, a kind of melt filtering system, include and filter disk (1), filter screen liner plate (2), filter screen (3), material discharging mould (4), charging template (5), disk driver part (6), back washing parts (7), drive cylinder part (8), draping compresses door part (9), turnbuckle parts (10), backing plate (11), it is characterized in that: filter screen liner plate (2), filter screen (3) are contained in the filtration cave of filtering disk (1), filter disk (1) off-centre and are positioned between charging template (5) and the material discharging mould (4); Disk driver part (6) is fixed on the top of material discharging mould (4), and back washing parts (7) are contained in material discharging mould (4) right side, and draping compresses door part (9) and is fixed on material discharging mould (4) left side, drives cylinder part (8) and is fixed on the material discharging mould (4).

2, a kind of melt filtering system according to claim 1, it is characterized in that: described back washing parts include back washing valve body (71), back washing piston (72), back washing floating junction (73), back washing oil cylinder (74), back washing hole switch valve shaft (75), back washing valve body (71) is contained in the material discharging mould (4), back washing piston (72) is to be contained in the back washing valve body (71), one end of back washing floating junction (73) is connected with back washing piston (72), the other end is connected with back washing oil cylinder (74), and back washing hole switch valve shaft (75) is connected with back washing piston (72).