CN210302572U

CN210302572U - Ejector rod assembly for pressure type solid-liquid separation device

Info

Publication number: CN210302572U
Application number: CN201920566694.3U
Authority: CN
Inventors: 周峰
Original assignee: Shaoxing City Songhai Machinery Equipment Co ltd
Current assignee: Shaoxing City Songhai Machinery Equipment Co ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-04-14
Anticipated expiration: 2029-04-24

Abstract

The utility model relates to a solid-liquid separation equipment specifically discloses a ejector pin subassembly for pressure type solid-liquid separation equipment. The ejector rod assembly comprises an ejector rod and a mould pressing plate, wherein the mould pressing plate is detachably connected with one end of the ejector rod, and the end surface of the mould pressing plate, which is far away from the ejector rod, is a working surface; a plurality of filtering channels are arranged in the mould pressing plate, each filtering channel comprises an expansion section, and the expansion sections gradually expand from one end to the other end; the small end of the expansion section faces the working surface and is communicated with the working surface; and a drainage channel communicated with the filtering channel is arranged in the mould pressing plate. Above filter passage's one end expands to the other end in the ejector pin subassembly, ensures that solid impurity can discharge smoothly after getting into filter passage under the high pressure effect, can not cause filter passage's jam, improves filtration efficiency.

Description

Ejector rod assembly for pressure type solid-liquid separation device

Technical Field

The utility model relates to a solid-liquid separation equipment, concretely relates to ejector pin subassembly for pressure type solid-liquid separation equipment.

Background

The solid-liquid separation is a process for removing suspended solids from a solid-liquid mixture, and the common method and process mainly comprise sedimentation, filtration, centrifugation and the like, and can also be used by combining a plurality of methods to achieve the optimal separation effect. The filter-press type solid-liquid separation process is one kind of filtering process, and based on the filtering mode, certain external pressure is applied to raise the solid-liquid separation efficiency.

In the filtering process, solid-liquid separation is achieved through the selective permeability of a filter screen or other filtering media with filtering channels to the solids in the mixture, that is, the solids in the mixture are selected through the size of the filtering channels, and the liquid and the solids with smaller size are allowed to pass through.

However, in the filter pressing process, part of the solid with a size slightly larger than that of the filtering channel enters the filtering channel under the action of external pressure, but cannot move continuously to pass through the filtering channel completely, and the part of the solid stays in the filtering channel to cause the blockage of the filtering channel, so that the further solid-liquid separation is influenced.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a ejector pin subassembly for pressure type solid-liquid separation equipment, wherein the one end of filtering the passageway expands to the other end, ensures that solid impurity gets into under the high-pressure effect after filtering the passageway, can discharge smoothly, can not cause the jam of filtering the passageway, improves filtration efficiency.

In order to solve the technical problem, the utility model provides a technical scheme as follows: the ejector rod assembly for the pressure type solid-liquid separation device comprises an ejector rod and a mould pressing plate, wherein the mould pressing plate is detachably connected with one end of the ejector rod, and the end surface, far away from the ejector rod, of the mould pressing plate is a working surface; a plurality of filtering channels are arranged in the mould pressing plate, each filtering channel comprises an expansion section, and the expansion sections gradually expand from one end to the other end; the small end of the expansion section faces the working surface and is communicated with the working surface; and a drainage channel communicated with the filtering channel is arranged in the mould pressing plate.

Under the externally applied pressure, the impurity that the size slightly is greater than the expansion section tip can follow the expansion section tip and get into filtration passageway, and because the expansion section expands from the tip to the main aspects gradually, filtration passageway reduces the resistance to impurity, and impurity can pass through the expansion section smoothly, and then gets into the drainage channel, finally discharges.

Compare with conventional filtration form, the setting of expansion section when guaranteeing to solid impurity selectivity filtration, has reduced the risk that solid impurity blockked up filtering channel, very big improvement filtration efficiency and effect.

Preferably, the expansion section is a tapered hole; the filtering channel also comprises a conveying section, and the conveying section is perpendicular to the expansion section and is communicated with the large end of the conveying section; one side of the conveying section, which is far away from the expansion section, is an inward-concave smooth curved surface.

Preferably, the expansion section is a long-strip-shaped groove parallel to the working surface of the die pressing plate, and the distance between two wall surfaces of the expansion section is gradually increased from one end communicated with the working surface to the other end; the bottom of the expansion section is inwards sunken to form a conveying section, and the conveying section is a smooth curved surface.

Preferably, the end face, far away from the working face, of the die pressing plate is provided with a confluence groove, and the confluence groove is communicated with the conveying section of the filtering channel through a drainage channel.

Preferably, the ejector rod is provided with at least one liquid drainage channel which is arranged along the axial direction and communicated with the confluence groove.

Preferably, the liquid discharge channel comprises a notch, a groove or a plane which is arranged on the peripheral surface of the mandril and axially penetrates through the whole mandril.

Preferably, the end part of the ejector rod connected with the die pressing surface is provided with a diversion trench communicated with the liquid drainage channel and the reflux trench.

Preferably, one end of the mould pressing plate, which is far away from the working surface, is provided with a connecting lug, and the ejector rod is provided with a slot matched with the connecting lug; the confluence groove is annularly arranged around the connecting lug.

Drawings

FIG. 1 is a front view of a die press plate according to the present embodiment;

FIG. 2 is a rear view of the die press plate of the present embodiment;

FIG. 3 is a view A-A of FIG. 1;

FIG. 4 is a view B-B of FIG. 1;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is a schematic structural view of the lift pin of the present embodiment;

fig. 7 is a view from D-D of fig. 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example one

The ejector rod assembly for the pressure type solid-liquid separation device comprises an ejector rod 6 and a mould pressing plate, wherein the mould pressing plate is detachably connected with one end of the ejector rod 6, and the end face, far away from the ejector rod 6, of the mould pressing plate is a working face 2. As shown in fig. 3, 6 and 7, a connecting bump 4 is provided at one end of the molding plate away from the working surface 2, and a slot 61 matching with the connecting bump 4 is provided on the post rod 6.

As shown in fig. 1, 3, 4 and 5, a plurality of filtering channels 1 are arranged in the moulding plate, the filtering channels 1 comprise expanding sections 11, and the expanding sections 11 gradually expand from one end to the other end; the small end of the expansion section 11 is arranged towards the working surface 2 and is communicated with the working surface 2.

The expansion section 11 is a conical hole; the filtering channel 1 further comprises a conveying section 12, wherein the conveying section 12 is perpendicular to the expansion section 11 and is communicated with the large end of the conveying section 12; the side of the conveying section 12 far away from the expansion section 11 is an inwardly concave smooth curved surface. The liquid that the divergent section 11 passes through, the velocity of flow is great, forms great impact to the conveying section 12, causes conveying section 12 fracture scheduling problem easily. One side of the conveying section 12 is set to be a smooth curved surface, so that stress concentration is reduced, and risks such as cracks of the conveying section 12 can be effectively reduced.

Since the conical hole-shaped expansion section 11 is difficult to machine, the die press plate needs to be manufactured in a form of separate machining and fitting connection, namely, the expansion section 11 is machined on one part, and the conveying section 12 is machined on the other part.

As shown in fig. 2 and 3, the die plate is provided with a flow guide channel 5 communicated with the filter channel 1. The end face, far away from the working face 2, of the die pressing plate is provided with a confluence groove 3, and the confluence groove 3 is communicated with a conveying section 12 of the filtering channel 1 through a drainage channel 5. The confluence groove 3 is annularly arranged around the connecting lug 4.

As shown in fig. 6 and 7, the top rod 6 is provided with at least one liquid discharge channel 63 which is axially arranged and communicated with the confluence groove 3. The liquid discharge channel 63 comprises a notch, a groove or a plane which is arranged on the circumferential surface of the mandril 6 and axially penetrates through the whole mandril 6. The end part of the ejector rod 6 connected with the molding surface is provided with a diversion trench 62 for communicating the liquid drainage channel 63 with the reflux trench.

Under the externally applied pressure, the impurity of size slightly greater than the little end of expansion section 11 can follow expansion section 11 little end and get into filtration passageway 1, and because expansion section 11 expands from the little end to the main aspects, filtration passageway 1 reduces to the resistance of impurity, and impurity can pass through expansion section 11 smoothly, and then gets into flow channel 5, finally discharges.

Compare with conventional filtration form, the setting of expansion section 11 when guaranteeing to solid impurity selectivity filtration, has reduced the risk that solid impurity blockked up filtration passageway 1, very big improvement filtration efficiency and effect.

Example two

As shown in fig. 1, 3 and 4, compared with the first embodiment, the present embodiment is different in that the expansion section 11 is an elongated groove parallel to the working surface 2 of the die pressing plate, and the distance between two wall surfaces of the expansion section 11 gradually increases from one end communicating with the working surface 2 to the other end; the bottom of the expansion section 11 is inwards sunken to form a conveying section 12, and the conveying section 12 is a smooth curved surface.

The expansion section 11 penetrates through the surface of the whole working surface 2, and the opening of the expansion section 11 on the working surface 2 is a long strip-shaped gap. Compared with the first form of the embodiment, the scheme of the embodiment is more convenient and fast to process, and split processing is not needed. In addition, the opening of the expansion section 11 on the working surface 2 is in a long strip shape, so that the expansion section can be suitable for filtering and purifying long-strip impurities such as cutting fluid.

Above filter passage's one end expands to the other end in the ejector pin subassembly, ensures that solid impurity can discharge smoothly after getting into filter passage under the high pressure effect, can not cause filter passage's jam, improves filtration efficiency.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a ejector pin subassembly for pressure type solid-liquid separation equipment which characterized in that: the device comprises an ejector rod (6) and a mould pressing plate, wherein the mould pressing plate is detachably connected with one end of the ejector rod (6), and the end surface of the mould pressing plate, which is far away from the ejector rod (6), is a working surface (2);

a plurality of filtering channels (1) are arranged in the die pressing plate, each filtering channel (1) comprises an expansion section (11), and each expansion section (11) gradually expands from one end to the other end; the small end of the expansion section (11) faces the working surface (2) and is communicated with the working surface (2); and a drainage channel (5) communicated with the filtering channel (1) is arranged in the mould pressing plate.

2. A ram assembly according to claim 1, wherein: the expansion section (11) is a conical hole; the filtering channel (1) further comprises a conveying section (12), wherein the conveying section (12) is perpendicular to the expansion section (11) and is communicated with the large end of the conveying section (12); one side of the conveying section (12) far away from the expansion section (11) is an inward-concave smooth curved surface.

3. A ram assembly according to claim 1, wherein: the expansion section (11) is a long-strip-shaped groove parallel to the working surface (2) of the die pressing plate, and the distance between two wall surfaces of the expansion section (11) is gradually increased from one end communicated with the working surface (2) to the other end; the bottom of the expansion section (11) is inwards sunken to form a conveying section (12), and the conveying section (12) is a smooth curved surface.

4. A ram assembly according to claim 2 or 3, wherein: the end face, far away from the working face (2), of the die pressing plate is provided with a confluence groove (3), and the confluence groove (3) is communicated with a conveying section (12) of the filtering channel (1) through a drainage channel (5).

5. The ram assembly of claim 4, wherein: and the ejector rod (6) is provided with at least one liquid drainage channel (63) which is arranged along the axial direction and is communicated with the confluence groove (3).

6. The ram assembly of claim 5, wherein: the liquid drainage channel (63) comprises a notch, a groove or a plane which is arranged on the circumferential surface of the ejector rod (6) and axially penetrates through the whole ejector rod (6).

7. The ram assembly of claim 6, wherein: the end part of the ejector rod (6) connected with the die pressing surface is provided with a diversion trench (62) communicated with a liquid drainage channel (63) and a reflux groove.

8. A ram assembly according to any one of claims 5 to 7, wherein: one end of the mould pressing plate, which is far away from the working surface (2), is provided with a connecting lug (4), and the ejector rod (6) is provided with a slot (61) matched with the connecting lug (4); the confluence groove (3) is annularly arranged around the connecting lug (4).