CN214419526U - Non-silk screen filter - Google Patents

Abstract

The utility model relates to a non-silk screen filter, which belongs to the technical field of filtering equipment and comprises a box body and a box cover covering the opening of the box body, wherein a scraper and a filtering screen plate are arranged in the box body, the scraper is fixed in the box body, the filtering screen plate is rotatably arranged in the box body, the working surface of the scraper is contacted with the filtering screen plate, the filtering screen plate respectively leads the box body to be in a filtering area and a filtered area, the scraper is positioned in the filtering area, the box body is provided with a feed inlet and a waste discharge port which are communicated with the filtering area and a discharge port which is communicated with the filtered area, the waste discharge port is positioned at the lower end part of the filtering area, waste materials are arranged on the filtering area, and the two ends of a waste material collecting tank are arranged close to the waste discharge port, the utility model aims to provide a filter with simple structure and good filtering effect, and the filtering holes are not easy to block, and the filtering efficiency can be improved.

Description

Non-silk screen filter

Technical Field

The utility model belongs to the technical field of filtration equipment, a filter is related to, refer in particular to a no silk screen filter.

Background

In the plastic processing and granulating industry, before plastic melt enters a first screw extruder for granulation, the melt needs to be filtered to filter out impurities and dirt in the melt, and a traditional filtering mode adopts a mode that a filter screen is attached to the front end of the first screw extruder for filtering, and the plastic processing and granulating industry mainly has the following defects: 1. the screen mesh or the screen mesh is limited by the structure of the screen mesh or the screen mesh, and under the extrusion action of raw materials, the mesh of the screen mesh is easy to deform, so that the uniformity of filtered particles is reduced, and the later-stage utilization of plastic particles is seriously influenced; 2. after using a period of time, the filter screen surface impurity is dirty to become many, need change the filter screen, basically need 3 minutes to change once, need frequently to change the filter screen promptly, has increased staff's intensity of labour, has reduced work efficiency, makes the use cost of filter screen increase simultaneously, even want to reuse the filter screen, also need carry out high temperature sintering to the filter screen and handle, otherwise can pollute seriously, this has not only increased production processes, has still increased the operation degree of difficulty.

At present, chinese patent with publication number CN204235864U discloses a no-screen filter, including box, filter element and row's miscellaneous part, the inside cavity that is provided with of box, filter element includes filter plate, the cavity by filter plate separates into feeding chamber and ejection of compact chamber, the feeding intracavity is provided with row's miscellaneous export, row's miscellaneous export is connected with row's miscellaneous part, be provided with the discharge gate on the ejection of compact chamber, be equipped with the motor on the box, motor output shaft stretches into in the box, motor output shaft tip is located the feeding intracavity, filter plate cover is established on the output shaft of motor, the output shaft end fixing of motor is equipped with the scraper, scraper and filter plate butt, the box front end is equipped with sealed lid, sealed covering is equipped with the feed inlet, the feed inlet communicates with each other with the feeding chamber. When the plastic melt feeding device is used, the plastic melt enters the feeding cavity from the feeding port, the plastic melt in the feeding cavity penetrates through the filter screen plate and enters the discharging cavity, and then the plastic melt in the discharging cavity is discharged through the discharging port. In the process that the fused mass plastics in the feeding cavity pass through the filter screen plate, impurities mixed in the fused mass plastics are separated by the filter screen plate and are attached to the filter screen plate, meanwhile, the motor output shaft drives the scraper to rotate, the rotating scraper scrapes the impurities attached to the filter screen plate, the impurities scraped by the scraper only enter the impurity discharging part through the impurity discharging outlet, and the impurity discharging part transports the impurities away from the screen-free filter.

However, when the screenless filter is used for filtering melt plastics with impurities, because the area of the filter screen plate for filtering the melt plastics is small, only less clean melt plastics can be obtained in unit time, and the processing efficiency of the screenless filter is low.

Disclosure of Invention

The utility model aims at providing a simple structure, the filter effect is good to cross the difficult jam in filtration pore, can improve filtration efficiency's no silk screen filter.

The purpose of the utility model is realized like this:

the utility model provides a no silk screen filter, includes the box and covers the case lid at the box opening part, be provided with scraper and filter plate in the box, the scraper is fixed in the box, filter plate rotates and sets up in the box, just the working face of scraper with filter plate contact, filter plate falls into the box and treats filtering area and filtering area, the scraper is located treats the filtering area, just be provided with on the box with treat the feed inlet of filtering area intercommunication and waste discharge mouth and with the discharge gate of filtering area intercommunication, waste discharge mouth is located the lower tip of treating the filtering area, treat to be provided with the garbage collection groove on the filtering area, just the both ends of garbage collection groove are close to waste discharge mouth and set up.

In the above screen-free filter, a rotating shaft is arranged in the box body, and the filter screen plate is fixed on the rotating shaft and rotates along with the rotation of the rotating shaft.

In the above screen-free filter, one end of the scraper is sleeved on the rotating shaft, and the other end of the scraper is fixed on the box body and is close to the waste discharge port.

In foretell no silk screen filter, all be provided with the spacing groove on the tip of scraper and the box medial part, the spacing inslot is provided with the locating part, connect through the locating part is spacing between scraper and the box.

In the above silk screen-free filter, the side of the box body close to the discharge port is provided with a plurality of guide plates, a plurality of guide chutes are formed between the box body and the guide plates, and the depths of the guide chutes are sequentially deepened from top to bottom.

In the above screen-less filter, the material guide plate is provided with a gap, and the plurality of material guide grooves are communicated together through the gap.

In the above screen-free filter, the notch is linearly arranged on the box body, and the notch is arranged close to the discharge port.

In the above silk screen-free filter, the filter screen plate comprises a front filter plate and a discharge plate, the front filter plate and the discharge plate are connected with each other through a connecting piece, filter holes with the aperture of 0.15mm-2mm are uniformly distributed on the front filter plate, a filter flow channel is arranged on the discharge plate, a discharge hole is arranged in the filter flow channel, the filter flow channel is close to the front filter plate, and the discharge plate is tightly attached to the guide plate.

In the above-mentioned filter without a wire mesh, the filtering flow passage is located between the front filter plate and the discharge plate.

In the above-mentioned filter without silk screen, the discharge openings are uniformly distributed in the filtering flow passage.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

the utility model discloses a filter screen plate passes through the motor and drives and rotate, filter screen plate is when rotating, this scraper is the laminating on filter screen plate, can scrape the filtration impurity on the filter screen plate like this, it can enter into the garbage collection groove along the scraper to filter impurity, this garbage collection groove's both ends are located the both sides of wasting discharge mouth, it can enter into wasting discharge mouth in the same direction as the garbage collection groove to filter impurity like this, this setting makes to be difficult for gathering impurity on the filter screen plate, and the difficult condition that blocks up that appears in the filtration pore of crossing on the preceding filter, guaranteed this filter to the lasting filter effect of fuse-element plastics to very big degree, and also improved filtration efficiency.

Drawings

Fig. 1 is one of the schematic structural diagrams of the present invention;

fig. 2 is a second schematic structural diagram of the present invention;

fig. 3 is a full sectional view of the present invention;

fig. 4 is one of the schematic internal structural diagrams of the present invention;

fig. 5 is a second schematic view of the internal structure of the present invention;

fig. 6 is a partial exploded view of the present invention;

the reference numerals in the figures denote the meanings:

1-a box body; 2-box cover; 3-a scraper; 4-filtering the screen plate; 5-a rotating shaft; 11-a region to be filtered; 12-a filtered zone;

13-a feed inlet; 14-a waste discharge port; 15-a discharge hole; 16-a waste collection tank; 17-a material guide plate; 18-a material guide groove;

19-notch; 31-a limiting groove; 32-a limit piece; 41-front filter plate; 42-a discharge plate; 43-a filtration flow path; 44-discharge hole.

Detailed Description

The invention will be further described with reference to specific embodiments below:

as shown in fig. 1-6: a silk screen free filter comprises a box body 1 and a box cover 2 covering an opening of the box body 1, wherein a scraper 3 and a filter screen plate 4 are arranged in the box body 1, the scraper 3 is fixed in the box body 1, the filter screen plate 4 is rotatably arranged in the box body 1, a working surface of the scraper 3 is in contact with the filter screen plate 4, the filter screen plate 4 divides the box body 1 into a to-be-filtered area 11 and a filtered area 12, the scraper 3 is positioned in the to-be-filtered area 11, the box body 1 is provided with a feed inlet 13 and a waste discharge port 14 which are communicated with the to-be-filtered area 11 and a discharge outlet 15 which is communicated with the filtered area 12, the waste discharge port 14 is positioned at the lower end part of the to-be-filtered area 11, a waste collecting tank 16 is arranged on the to-be-filtered area 11, two ends of the waste collecting tank 16 are arranged close to the waste discharge port 14, and particularly, a plastic melt to be filtered enters the to-be-filtered area from the feed inlet, through pressure and scraper and the cooperation of filtering between the otter board, can filter the impurity of plastics melt and separate, the plastics melt after filtering simultaneously enters into through filtering the otter board and discharges from the discharge gate after the filter area again, filter the otter board when rotating, this scraper is the laminating on filtering the otter board, can scrape down filtering impurity on the otter board like this, this setting makes to be difficult for gathering on filtering the otter board and has had impurity, and the difficult condition that blocks up that appears in the filtration pore of crossing on the preceding filter, this filter has been guaranteed to a very big extent to the lasting filter effect of fuse-element plastics, the filtration efficiency has also been improved.

In the above screen-less filter, a rotating shaft 5 is provided in the case 1, and the filter screen plate 4 is fixed to the rotating shaft 5 and rotates with the rotation of the rotating shaft 5. Specifically, this axis of rotation is the axis of rotation on the motor, the pot head of scraper 3 is established in axis of rotation 5, and its other end is fixed on box 1, and is close to the setting of waste discharge opening 14, and a pot head of scraper is equipped with the bearing, and this bearing is established in the axis of rotation at the cover, even if even so the axis of rotation rotates, the axis of rotation can not take the scraper to rotate yet.

In the above screen-free filter, the end of the scraper 3 and the inner side of the box 1 are both provided with a limiting groove 31, a limiting member 32 is arranged in the limiting groove 31, and the scraper 3 and the box 1 are in limiting connection through the limiting member 32, specifically, a straight line is determined at two points, so that the scraper is ensured not to be driven by the rotating shaft to rotate, and meanwhile, the installation stability of the scraper is ensured.

In foretell no silk screen filter, the side that box 1 is close to discharge gate 15 is provided with a plurality of stock guides 17, form a plurality of baffle boxes 18 between box 1 and the stock guides 17, just the degree of depth of baffle box 18 deepens from last to down in proper order, be provided with breach 19 on the stock guides 17, a plurality of stock guides 18 communicate together through this breach 19, breach 19 is the linear setting on box 1, breach 19 is close to discharge gate 15 and sets up, can be favorable to the plastics melt like this, can ensure the entering discharge gate that the plastics melt can be smooth like this.

In the above-mentioned screen-free filter, the filter screen plate 4 includes a front filter plate 41 and a discharge plate 42, the front filter plate 41 and the discharge plate 42 are connected to each other through a connecting member, and filter holes with an aperture of 0.15mm to 2mm are uniformly distributed on the front filter plate 41, a filter flow channel 43 is arranged on the discharge plate 42, a discharge hole 44 is arranged in the filter flow channel 43, the filter flow channel 43 is arranged close to the front filter plate 41, the discharge plate 42 is tightly attached to the material guide plate 17, the filter flow channel 43 is arranged between the front filter plate 41 and the discharge plate 42, the discharge hole 44 is uniformly distributed in the filter flow channel 43, the connecting member is a bolt, and the designed filter flow channel is designed to facilitate the plastic melt to be gathered together after passing through the filter holes, and to be extruded through the discharge hole after being gathered.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a no silk screen filter, includes box (1) and cover case lid (2) at box (1) opening part, its characterized in that: a scraper (3) and a filter screen plate (4) are arranged in the box body (1), the scraper (3) is fixed in the box body (1), the filter screen plate (4) is rotationally arranged in the box body (1), the working surface of the scraper (3) is in contact with the filter screen plate (4), the filter screen plate (4) divides the box body (1) into a region to be filtered (11) and a region to be filtered (12), the scraper (3) is positioned in the region to be filtered (11), and the box body (1) is provided with a feed inlet (13) and a waste discharge port (14) which are communicated with the region (11) to be filtered and a discharge outlet (15) which is communicated with the filtered region (12), the waste discharge port (14) is positioned at the lower end part of the region to be filtered (11), a waste collecting tank (16) is arranged on the region to be filtered (11), and two ends of the waste collecting tank (16) are arranged close to the waste discharge port (14).

2. The wire-less screen filter of claim 1, wherein: a rotating shaft (5) is arranged in the box body (1), and the filter screen plate (4) is fixed on the rotating shaft (5) and rotates along with the rotation of the rotating shaft (5).

3. The wire-less screen filter of claim 2, wherein: one end of the scraper (3) is sleeved on the rotating shaft (5), and the other end of the scraper is fixed on the box body (1) and is close to the waste discharge port (14).

4. The wire-less screen filter of claim 3, wherein: all be provided with spacing groove (31) on the tip of scraper (3) and box (1) the inside part, be provided with locating part (32) in spacing groove (31), connect through locating part (32) spacing between scraper (3) and box (1).

5. The wire-free screen filter of any one of claims 1-4, wherein: the side that box (1) is close to discharge gate (15) is provided with a plurality of stock guides (17), form a plurality of baffle boxes (18) between box (1) and stock guides (17), just the degree of depth of baffle box (18) deepens from last to down in proper order.

6. The wire-less screen filter of claim 5, wherein: the material guide plate (17) is provided with a gap (19), and the plurality of material guide grooves (18) are communicated together through the gap (19).

7. The wire-less screen filter of claim 6, wherein: the notch (19) is linearly arranged on the box body (1), and the notch (19) is arranged close to the discharge hole (15).

8. The wire-less screen filter of claim 5, wherein: filter otter board (4) including preceding filter (41) and play flitch (42), preceding filter (41) and play flitch (42) pass through connecting piece interconnect, just the equipartition has the filtration hole of aperture at 0.15mm-2mm on preceding filter (41), be provided with on play flitch (42) and filter runner (43), be provided with discharge opening (44) in filtering runner (43), just filter runner (43) and be close to preceding filter (41) setting, just play flitch (42) and hug closely on stock guide (17).

9. The wire-less screen filter of claim 8, wherein: the filtering flow channel (43) is positioned between the front filtering plate (41) and the discharging plate (42).

10. The wire-less screen filter of claim 9, wherein: the discharge holes (44) are uniformly distributed in the filtering flow passage (43).

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