CN218192398U

CN218192398U - A filtration for sand silo feed inlet

Info

Publication number: CN218192398U
Application number: CN202222485911.0U
Authority: CN
Inventors: 刘裕生; 林义军; 洪福生
Original assignee: Meizhou Weiyou Wear Resistant Material Co ltd
Current assignee: Meizhou Weiyou Wear Resistant Material Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-01-03
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a filtering structure for a sand silo feed inlet; belongs to the technical field of sand casting; the technical key points of the device comprise a square feed inlet formed on a foundation, wherein a material guide sleeve is fixed on the foundation at the feed inlet, an opening part at the upper end of the material guide sleeve is of an inclined plane structure, and the opening end of the material guide sleeve is connected with a screen assembly through a shaking assembly; the shaking assembly consists of first spring groups which are uniformly distributed between the upper end of the material guide sleeve and the screen assembly at intervals along the horizontal direction and second spring groups which are uniformly distributed between the lower end of the material guide sleeve and the screen assembly at intervals along the horizontal direction; the spring amplitude of the first spring set is 0.3-0.5 times that of the second spring set; the utility model aims to provide a filtering structure for a sand silo feed inlet, which has simple structure and rapid vibration; used for filtering the raw material sand at the feed inlet of the sand silo.

Description

A filtration for sand silo feed inlet

Technical Field

The utility model relates to a filtration, more specifically say, especially relate to a filtration for sand silo feed inlet.

Background

Sand casting refers to a casting process that produces a casting in a sand mold. Steel, iron and most nonferrous alloys are cast by sand casting. The molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould can adapt to single-piece production, batch production and mass production of castings, and is a basic process in casting production for a long time.

In the earlier stage of sand mold casting, sand needs to be poured into a sand silo for sand mold blending, and large-particle impurities in the sand need to be filtered and removed when the sand is poured into the sand silo. In the current production flow, the filtration mode commonly used is only to set up the screen cloth at the sand silo feed inlet and filters, and this kind of screen cloth filtration mode not only filtration efficiency is lower, and the impurity above it is inconvenient to clear up moreover, when impurity accumulation reached a certain amount and influences the filtration, will shut down and carry out manual clearance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough of above-mentioned prior art, provide a simple structure, quick vibrating filtration that is used for sand silo feed inlet.

The technical scheme of the utility model is realized like this: the utility model provides a filtration for sand silo feed inlet, is including taking shape on the ground and be square feed inlet, be fixed with the guide cover on the ground of feed inlet department, guide cover upper end opening is the inclined plane structure, is connected with screen cloth subassembly through the shake subassembly at guide cover open end.

The shaking assembly consists of first spring groups which are uniformly distributed between the upper end of the material guide sleeve and the screen assembly at intervals along the horizontal direction and second spring groups which are uniformly distributed between the lower end of the material guide sleeve and the screen assembly at intervals along the horizontal direction; the spring amplitude of the first spring set is 0.3-0.5 times of the spring amplitude of the second spring set.

In the filtering structure for the sand silo feed inlet, the upper end and the lower end edge of the material guide sleeve are integrally formed outwards to form a first installation flanging.

The first spring group and the second spring group are both composed of springs and connecting plates horizontally fixed at two ends of the springs; the connecting plate is connected with the corresponding first mounting flange or the screen assembly through screws or bolts.

In the filtering structure for the sand silo feed inlet, the screen assembly comprises a support plate connected with the shaking assembly, a net rack is arranged in an area of the support plate, which is opposite to the feed inlet, and a first screen is covered above the net rack.

The support plate low side is the structure of falling V-arrangement, is provided with the direction blend stop at support plate low side edge, and the through-hole has been formed along the direction of setting up of direction blend stop on the support plate of direction blend stop side, is provided with the second screen cloth in through-hole department.

In the filtering structure for the sand silo feed inlet, a first vertical protective plate is arranged at the edge of a first installation flanging at the upper end of the material guide sleeve, second vertical protective plates matched with the first vertical protective plates are vertically arranged on two sides of the opening end of the material guide sleeve, and the upper end surfaces of the first vertical protective plates and the second vertical protective plates are horizontal planes and are located on the same horizontal plane.

The upper ends of the second vertical guard plates are inwards integrally formed with second mounting flanges; a sand blocking enclosing plate with an opening facing the lower end of the screen assembly is connected to the second installation turnover edge, and the rear side surface of the sand blocking enclosing plate is positioned on the inner side of the edge of the first screen; the opening part at the front end of the sand blocking coaming is in a splayed shape.

In the filtering structure for the sand silo feeding hole, the dust blocking top plate is arranged at the rear part of the upper end face of the sand blocking enclosing plate.

The utility model adopts the above structure after, the shake subassembly that sets up through the slope makes screen assembly when filtering, can remove impurity towards the bottom fast. Meanwhile, the spring amplitude of the first spring group in the shaking assembly is designed to be 0.3-0.5 times of the spring amplitude of the second spring group, when workers dump raw material sand onto the inclined screen assembly, due to the fact that the two spring groups are different in amplitude, the up-down swinging frequency and the amplitude of the upper side and the lower side of the screen assembly are different, the vibration frequency of the screen assembly can be further improved, the area of the raw material sand spread on the screen can be increased, and the filtering efficiency is improved.

Drawings

The present invention will be described in further detail with reference to the embodiments shown in the drawings, which should not be construed as limiting the invention in any way.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure of the present invention.

Fig. 3 is a schematic view of a partial structure at a.

Fig. 4 is a schematic view of a partial structure at B of the present invention.

In the figure: 1. a feed inlet; 2. a material guiding sleeve; 3. a screen assembly; 3a, a support plate; 3b, a net rack; 3c, a first screen; 3d, guiding barrier strips; 3e, a second screen; 4. a first spring set; 5. a second spring set; 6. a first mounting flange; 7. a spring; 8. a connecting plate; 9. a first vertical guard plate; 10. a second vertical guard plate; 11. second installation flanging; 12. a sand blocking coaming; 13. dust-blocking top plate.

Detailed Description

Referring to fig. 1-4, the utility model discloses a filtration for sand silo feed inlet, including taking shape on the ground and being square feed inlet 1, be fixed with guide cover 2 on the ground of feed inlet 1 department, the upper end opening of guide cover 2 is the inclined plane structure, is connected with screen assembly 3 through the shake subassembly at guide cover 2 open ends. When falling on the inclined screen assembly, the raw material sand can roll downwards and spread out, so that the raw material sand is prevented from being accumulated on the screen. Simultaneously, make raw materials sand constantly vibrate on the screen cloth through the shake subassembly, increase its efficiency through the screen cloth sieve mesh.

The shaking assembly consists of first spring groups 4 which are uniformly distributed between the upper end of the material guide sleeve 2 and the screen assembly 3 at intervals along the horizontal direction and second spring groups 5 which are uniformly distributed between the lower end of the material guide sleeve 2 and the screen assembly 3 at intervals along the horizontal direction; the spring amplitude of the first spring set 4 is 0.3-0.5 times the spring amplitude of the second spring set 5. The structure can increase the vibration frequency of the screen assembly and effectively improve the filtering efficiency.

In this embodiment, the edges of the upper end and the lower end of the material guide sleeve 2 are integrally formed with a first mounting flange 6 outward; the first spring group 4 and the second spring group 5 are both composed of springs 7 and connecting plates 8 which are horizontally fixed at two ends of the springs 7; the connecting plate 8 is connected to the corresponding first mounting flange 6 or screen assembly 3 by screws or bolts. By adopting the structure, the screen assembly is convenient to disassemble, assemble and replace.

In this embodiment, the screen assembly 3 comprises a strip 3a connected to the whipping assembly, a rack 3b is provided in the area of the strip 3a opposite the throat 1, and a first screen 3c is covered over the rack 3 b.

The support plate 3a low end is of an inverted V-shaped structure, a guide barrier strip 3d is arranged at the edge of the low end of the support plate 3a, a through hole is formed in the support plate 3a on the side edge of the guide barrier strip 3d along the arrangement direction of the guide barrier strip 3d, and a second screen 3e is arranged at the through hole.

The material receiving box is placed on the ground below the two outer ends of the guide barrier strips, and large-particle impurities falling onto the second screen mesh are conveyed to the material receiving box through the guide barrier strips to be collected. The second screen is mainly used for preventing the raw material sand falling to the second screen from being led out together with impurities.

In this embodiment, a first vertical guard plate 9 is disposed at an edge of a first installation flange 6 at an upper end of the material guide sleeve 2, second vertical guard plates 10 matched with the first vertical guard plate 9 are vertically disposed on two sides of an opening end of the material guide sleeve 2, and upper ends of the first vertical guard plate 9 and the second vertical guard plates 10 are horizontal planes and are located on the same horizontal plane.

The upper ends of the second vertical guard plates 10 are integrally formed with second mounting flanges 11 inwards; a sand baffle coaming 12 with an opening facing to the lower end of the screen assembly 3 is connected to the second mounting flange 11, and the rear side surface of the sand baffle coaming 12 is positioned at the inner side of the edge of the first screen 3 c; the opening part at the front end of the sand baffle coaming 12 is in a splayed shape. Through the cooperation of the vertical guard plate of second and the sand blocking enclosing plate, the workman can directly throw the sand on the sand blocking enclosing plate when the shovel sand is thrown the sand, not only need not waste energy and go to counterpointing, can guarantee moreover that the sand can not be shed outside the screen cloth. Meanwhile, the area of the sand blocking enclosing plate is smaller than the horizontal projection area of the first screen, and the sand blocking enclosing plate is basically located in the middle area of the first screen. Make the sand homoenergetic that gets into like this directly fall the screen cloth middle part, both prevented that sand from the screen cloth edge whereabouts, can carry out abundant screening again to the sand and filter.

In this embodiment, a dust-blocking top plate 13 is arranged at the rear part of the upper end face of the sand-blocking enclosing plate 12. Raise dust that produces at the sand pouring in-process is reduced through keeping off dust roof, reduces the pollution to the surrounding environment.

During operation, the workman shovels subaerial raw materials sand through the shovel and throws on first screen cloth, and first screen cloth takes place to shake and spreads out raw materials sand. Qualified raw material sand gets into the sand silo feed inlet through first screen cloth, and the large granule impurity that can't pass through first screen cloth rolls towards the lower extreme and exports through the direction blend stop and collect.

The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.

Claims

1. A filtering structure for a sand silo feeding port comprises a square feeding port (1) formed on a foundation, and is characterized in that a material guide sleeve (2) is fixed on the foundation at the feeding port (1), an opening part at the upper end of the material guide sleeve (2) is of an inclined plane structure, and the opening end of the material guide sleeve (2) is connected with a screen assembly (3) through a shaking assembly;

the shaking assembly consists of first spring groups (4) which are uniformly distributed between the upper end of the material guide sleeve (2) and the screen assembly (3) at intervals along the horizontal direction and second spring groups (5) which are uniformly distributed between the lower end of the material guide sleeve (2) and the screen assembly (3) at intervals along the horizontal direction;

the spring amplitude of the first spring group (4) is 0.3-0.5 times of the spring amplitude of the second spring group (5).

2. The filtering structure for the sand silo feeding port according to claim 1, characterized in that the edges of the upper end and the lower end of the material guide sleeve (2) are respectively outwards integrally formed with a first mounting flange (6);

the first spring group (4) and the second spring group (5) are both composed of springs (7) and connecting plates (8) horizontally fixed at two ends of the springs (7); the connecting plate (8) is connected with the corresponding first mounting flange (6) or the screen assembly (3) through screws or bolts.

3. A filter construction for a sand silo feed inlet according to claim 1, characterized in that the screen assembly (3) comprises a strip (3 a) connected to the jitter assembly, that a wire frame (3 b) is arranged in the area of the strip (3 a) opposite to the feed inlet (1), and that a first screen (3 c) is covered above the wire frame (3 b);

the support plate (3 a) low end is of an inverted V-shaped structure, a guide barrier strip (3 d) is arranged at the edge of the low end of the support plate (3 a), a through hole is formed in the support plate (3 a) on the side edge of the guide barrier strip (3 d) along the arrangement direction of the guide barrier strip (3 d), and a second screen (3 e) is arranged at the through hole.

4. The filtering structure for the feeding hole of the sand silo according to claim 3, characterized in that a first vertical protecting plate (9) is arranged at the edge of a first installation flanging (6) at the upper end of the material guiding sleeve (2), second vertical protecting plates (10) matched with the first vertical protecting plate (9) are vertically arranged at two sides of the opening end of the material guiding sleeve (2), and the upper end surfaces of the first vertical protecting plate (9) and the second vertical protecting plate (10) are horizontal planes and are positioned on the same horizontal plane;

the upper ends of the second vertical guard plates (10) are inwards integrally formed with second mounting flanges (11); a sand blocking baffle plate (12) with an opening facing the lower end of the screen assembly (3) is connected to the second mounting flange (11), and the rear side surface of the sand blocking baffle plate (12) is positioned on the inner side of the edge of the first screen (3 c); the opening part at the front end of the sand blocking coaming (12) is in a splayed shape.

5. A filter structure for a sand silo feed inlet according to claim 4, characterized in that a dust-blocking top plate (13) is arranged at the rear part of the upper end surface of the sand-blocking coaming (12).