CN211030572U

CN211030572U - A leak protection sand vacuum negative pressure insulation can for production of α - β brick

Info

Publication number: CN211030572U
Application number: CN201921591385.8U
Authority: CN
Inventors: 龙沾卫; 李享儒
Original assignee: Zhengzhou Yuandong Refractory Co Ltd
Current assignee: Zhengzhou Yuandong Refractory Co Ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-17
Anticipated expiration: 2029-09-24

Abstract

The utility model relates to a leak protection sand vacuum negative pressure insulation can for α - β brick production, technical scheme is, be provided with the negative pressure pipeline in the box, the negative pressure pipeline includes that 4 horizontal pipelines that link to each other perpendicularly in proper order by the head and the tail constitute top rectangular frame, be connected with a plurality of vertical pipelines that stretch out vertically downwards on the horizontal pipeline respectively, vertical pipeline communicates with horizontal pipeline each other, all open the gas pocket that link up inside and outside on the pipe wall of vertical pipeline and horizontal pipeline, the gas pocket coats and is stamped the filter screen that is used for preventing leaking sand, the sieve mesh diameter of filter screen is less than 0.5mm, the utility model discloses a compress tightly the filter screen that has fixed the cover gas pocket between pipe wall body and solid fixed pressing plate, the sieve mesh of filter screen is less than 0.5mm, the fine solution of this kind of small-size sieve mesh leak the problem of sand in the air exhaust in-process, the steel sheet of the fine solution that sets up of screen cloth is difficult.

Description

A leak protection sand vacuum negative pressure insulation can for production of α - β brick

Technical Field

The utility model relates to the production of a fused zirconia-corundum brick, in particular to a sand leakage prevention vacuum negative pressure incubator used for α - β brick production.

Background

The vacuum process is gradually applied to the production of the fused α - β corundum bricks, a forming film is vacuumized and coated with high-temperature-resistant coating on the surface and then is placed into a heat preservation box, after heat preservation sand is filled in the box body, a plastic film seals the heat preservation box, air in the heat preservation box is pumped out by a vacuum pump to enable the heat preservation sand to be compacted under negative pressure, a film on the surface of a forming die and the high-temperature-resistant coating are simultaneously adsorbed on the heat preservation sand, a forming space of the fused brick is formed, a pattern die can be eliminated by high-temperature feed liquid gasification, such as foam, the vacuum process has good quality compared with the common casting process, the heat preservation material and the high-temperature-resistant coating are simultaneously adsorbed on the heat preservation sand, the pattern die is taken out, the forming space of the heat preservation box is formed, the pattern die does not need to be taken out, the vacuum molding process has good quality compared with the vacuum process, the vacuum molding process has the advantages that the vacuum material is generally applied to form a vacuum molding box with a vacuum box, the vacuum molding process has the vacuum, the vacuum molding process is a vacuum molding process is more negative pressure, the vacuum forming of a vacuum forming pipeline with the vacuum, the vacuum forming of a vacuum forming air hole, the vacuum forming pipeline with the vacuum, the vacuum process is often applicable vacuum, the vacuum process has the vacuum of a vacuum forming pipeline with the vacuum, the vacuum of the vacuum process, the vacuum process has the vacuum forming of the vacuum furnace, the vacuum furnace has the vacuum of the vacuum furnace has the vacuum furnace, the vacuum furnace has the vacuum furnace, the vacuum of the vacuum furnace has.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a sand leakage prevention vacuum negative pressure incubator for α - β brick production, which can effectively prevent the problem of sand leakage in the air exhaust process of the negative pressure pipeline.

The utility model provides a technical scheme be:

a vacuum negative-pressure insulation can comprises a box body, the box body is of a hollow structure with an opening at the upper part, a negative-pressure pipeline is arranged in the box body, the negative-pressure pipeline comprises a top rectangular frame formed by 4 horizontal pipelines which are vertically connected end to end in sequence, the horizontal pipelines are respectively connected with a plurality of vertical pipelines which vertically extend downwards, the vertical pipelines are communicated with the horizontal pipelines, the pipe walls of the vertical pipelines and the horizontal pipelines are respectively provided with an air hole which is communicated with the inside and the outside, the air holes are covered with a filter screen for preventing sand leakage, the diameter of a sieve mesh of the filter screen is smaller than 0.5mm, the pipe wall structures of the vertical pipelines and the horizontal pipelines are the same and respectively comprise a pipe wall body, the outer side surface of the pipe wall body is sequentially covered with the filter screen and a fixed pressing plate, the pipe wall body and the fixed pressing plate are connected by matched bolts and nuts, the filter screen, the fixed pressing plate is provided with a second air hole which is communicated with the inside and the outside, the first air hole and the second air hole are coaxially arranged, and the vertical pipeline or the horizontal pipeline is connected with a joint pipeline which is communicated with the inner cavity of the negative pressure pipeline and is used for connecting an air pump.

Preferably, the vertical pipelines are respectively arranged on the horizontal pipelines at two sides of the top rectangular frame, at least 2 pipelines are uniformly distributed without measurement, and the bottom of each vertical pipeline is connected with a supporting plate for standing.

Preferably, the aperture of the second air hole is larger than that of the first air hole, and the aperture of the first air hole is larger than 2 mm.

The utility model discloses novel structure is unique, and is simple reasonable, easy production, easy operation, through set up by the negative pressure pipeline in the box of insulation can, the rethread air extractor carries out the evacuation through the exhaust line, the air in the box gets into the negative pressure pipeline through the gas pocket and is taken out, finally make the condition of heat preservation sand formation negative pressure in the insulation can, lay good basis for negative pressure pouring process, through compressing tightly the filter screen that has fixed the cover gas pocket between pipe wall body and holding plate, the sieve mesh of filter screen is less than 0.5mm, the fine solution of this kind of small-size sieve mesh leaks the problem of sand at the air exhaust in-process, the steel sheet of the fine solution of setting of screen cloth is difficult to set up the problem of minor diameter gas pocket, the problem of sand leakage in-process of negative pressure air exhaust has been solved, be the innovation on the insulation can for electric smelting zirconia-jade brick vacuum casting.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a schematic perspective view of the arrangement of the negative pressure pipeline (each pipeline is represented by lines).

Fig. 3 is a schematic view of the cross-sectional view of the vertical and horizontal pipes of the present invention, wherein the direction indicated by the arrow a is the direction of air flow during air extraction.

Fig. 4 is a sectional view showing a use state of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in the figures 1-4, the utility model comprises a box body, the box body is a hollow structure with an upper opening, a negative pressure pipeline is arranged in the box body, the negative pressure pipeline comprises a top rectangular frame formed by 4 horizontal pipelines 6a which are vertically connected end to end in sequence, the horizontal pipelines are respectively connected with a plurality of vertical pipelines 6b which vertically extend downwards, the vertical pipelines 6b are communicated with the horizontal pipelines 6a, the pipe walls of the vertical pipelines 6b and the horizontal pipelines 6a are provided with air holes which are communicated with each other inside and outside, the air holes are covered with a filter screen 62 for preventing sand leakage, the diameter of the sieve holes of the filter screen 62 is smaller than 0.5mm, the pipe wall structures of the vertical pipelines 6b and the horizontal pipelines 6a are the same and comprise pipe wall bodies 61, the outer side surfaces of the pipe wall bodies 61 are covered with the filter screen 62 and a fixed pressing plate 63 in sequence, the pipe wall bodies 61 and, the filter screen 62 is pressed and fixed between the tube wall body 61 and the fixed pressing plate 63, the tube wall body 61 is provided with a first air hole 51 which is through inside and outside, the fixed pressing plate 63 is provided with a second air hole 52 which is through inside and outside, the first air hole 51 and the second air hole 52 are coaxially arranged, and the vertical pipeline 6b or the horizontal pipeline 6a is connected with a joint pipeline 12 which is communicated with the inner cavity of the negative pressure pipeline and is used for connecting an air pump.

In order to ensure the using effect, the side wall of the box body is fixed with an air suction pipeline 14, one end of the air suction pipeline 14 extends into the box body and is hermetically connected with the joint pipeline 12 through a connecting pipeline 13, and the other end of the air suction pipeline 14 extends out of the box body and is provided with a valve 15.

The vertical pipelines 6b are respectively arranged on the horizontal pipelines 6a at two sides of the top rectangular frame, at least 2 pipelines are uniformly distributed, and the bottom of each vertical pipeline 6b is connected with a supporting plate 11 for standing; as shown in fig. 2, the top rectangular frame is composed of a first horizontal pipeline 6a1, a second horizontal pipeline 6a2, a third horizontal pipeline 6a3 and a fourth horizontal pipeline 6a4 which are sequentially vertically connected end to end, the vertical pipelines are respectively arranged on the horizontal pipelines at two sides, 3 uniform-distributed pipelines are not arranged on the sides, so that the top rectangular frame can be stably supported by the supporting plate, the horizontal pipelines and the vertical pipelines are in sealed connection, so that the negative pressure pipeline is integrally formed into a relatively closed space, when air is pumped, air in the insulation can only enter the negative pressure pipeline through the air holes, and then is sucked away from the air pumping pipeline through the joint pipeline.

And corresponding lifting rings 17 are respectively arranged on one group of the oppositely arranged horizontal pipelines and are used for lifting the negative pressure pipeline, as shown in fig. 2, the lifting rings 17 are respectively positioned on the second horizontal pipeline 6a2 and the fourth horizontal pipeline 6a 4.

The aperture of the second air hole 52 is larger than that of the first air hole 51, and the aperture of the first air hole 51 is larger than 2 mm; vertical pipeline 6b and horizontal pipeline 6a all adopt the square steel to make, its pipe wall body 61 is the lateral wall of square steel promptly, fixing clamp plate 63 is the steel sheet, is provided with a plurality of assorted bolt holes on the lateral wall of square steel and the fixing clamp plate 63, when compressing tightly the steel sheet through bolt, nut 16 and fixing on the lateral wall of square steel, first gas pocket 51 and second gas pocket 52 are coaxial setting, gaseous passing through from the gas pocket and filtering by the filter screen when can guaranteeing to bleed like this.

The box body is internally provided with a sand mold, the sand mold is a hollow structure with an opening at the upper part and composed of a brick sand mold 7a at the bottom and a riser sand mold 7b arranged at the top of the brick sand mold 7a, an inner cavity of the sand mold is a forming space of an electric melting brick, heat-insulating sand 10 is filled among the sand mold, the inner wall of the box body and the outer wall of a negative pressure pipeline, and the granularity of the heat-insulating sand 10 is 0.5mm-1.0mm, so that the heat-insulating sand is prevented from being filtered through sieve pores of a.

The top surface of the box body is covered with a plastic film 8 for sealing the box body, the plastic film 8 around the upper opening of the sand mold is covered with a high temperature resistant plate 9, and one end of the air exhaust pipeline 14 extending out of the box body is connected with an air inlet of an air exhauster.

The air pump can be a vacuum pump; the high-temperature resistant plate 9 can be a steel plate, a zirconium corundum plate and the like, and has the function of preventing the plastic film from being damaged when feed liquid overflows during pouring; the two ends of the connecting pipeline 13 are respectively connected with the joint pipeline 12 and the suction pipeline 14 in a sealing manner, the connecting pipeline can be a hose and is convenient to connect, the sealing connection mode can adopt joint connection, such as flange joint and the like, and sealing can be realized through a conventional sealing ring.

The box body is of a hollow structure with an opening at the upper part, the hollow structure is composed of a bottom plate 2 and a box sleeve 1 arranged on the bottom plate, a convex edge 3 extending outwards is connected to the outer wall of the bottom of the box sleeve 1, and the convex edge 3 and the bottom plate 2 are connected and fixed together through a bolt 4.

The utility model discloses during the use, at first with box cover 1 and bottom plate 2 of box through bolt 4 connection fixed together, place the bottom plate in the box with the backup pad 11 standing of negative pressure pipeline through vertical pipeline bottom, through connecting line 13 with joint line 12 and the butt joint of exhaust line 14, fill heat preservation sand, spread the end earlier, place the sand mould on the heat preservation sand of spreading the end again, continue to fill heat preservation sand, make the sand mould, fill between the outer wall of box inner wall and negative pressure pipeline, cover plastic film 8 at the box top surface, plastic film 8 around the sand mould upper shed coats and is stamped high temperature resistant plate 9, the one end that exhaust line 14 stretches out the box links to each other with the air inlet of air exhauster, open the valve on the exhaust line, start the air exhauster, the air in the insulation box only can get into the negative pressure pipeline through the gas pocket, the rethread joint pipeline is siphoned from the exhaust line, the heat preservation sand in the box can form the state of a negative pressure, close the valve at last can, through compress tightly between pipe wall body 61 and fixed clamp plate 63 fixed filter screen mesh, the sieve mesh is less than 0.5mm, this kind of fine box is solved the problem of the filtration of the good vacuum of the easy vacuum of the internal heat preservation sand of the easy vacuum of the problem of the vacuum of the internal of the easy vacuum of the filtration of the problem of the easy vacuum of the good vacuum of the internal of the easy vacuum of the easy casting of the internal of the good heat preservation of the box of the problem of the low-of drawing, the low-of the internal.

Claims

1. The utility model provides a leak protection sand vacuum negative pressure insulation can for α - β brick production, the power distribution box comprises a box body, a serial communication port, the box is upper portion open-ended hollow structure, be provided with the negative pressure pipeline in the box, the negative pressure pipeline includes 4 horizontal pipelines (6a) that link to each other perpendicularly in proper order by head and the tail constitute top rectangular frame, be connected with vertical pipeline (6b) that a plurality of vertical downwardly extending are down vertically stretched out on the horizontal pipeline respectively, vertical pipeline (6b) and horizontal pipeline (6a) communicate each other, all open the gas pocket that link up inside and outside on the pipe wall of vertical pipeline (6b) and horizontal pipeline (6a), the gas pocket coats and is stamped filter screen (62) that are used for preventing the hourglass sand, the sieve mesh diameter of filter screen (62) is less than 0.5mm, the pipe wall structure of vertical pipeline (6b) and horizontal pipeline (6a) is the same, all include pipe wall body (61), it has inside and outside and fixed pressing plate (63) to cover in proper order on the lateral surface of pipe wall body (61), pipe wall body (61) have filter screen (62) and fixed pressing plate (51) and second pressing plate (51) that link up the pipe wall is connected with the coaxial air pocket (6a) that the second pipeline is connected to be used for the second, the pipe wall (51) of the coaxial pipeline (51) that link up the pipe wall is connected with the second pipeline (51).

2. The sand-leakage-proof vacuum negative pressure insulation can for α - β brick production according to claim 1, wherein the side wall of the can body is fixed with an air suction pipeline (14), one end of the air suction pipeline (14) extends into the can body and is connected with the joint pipeline (12) in a sealing way through a connecting pipeline (13), and the other end of the air suction pipeline (14) extends out of the can body and is provided with a valve (15).

3. The sand leakage prevention vacuum negative pressure incubator for α - β brick production according to claim 1, wherein the vertical pipes (6b) are respectively arranged on the horizontal pipes (6a) at two sides of the top rectangular frame, at least 2 pipes are not measured, and the bottom of the vertical pipe (6b) is connected with the support plate (11) for standing.

4. The sand leakage prevention vacuum negative pressure incubator for α - β brick production according to claim 1, wherein the second air hole (52) has a larger diameter than the first air hole (51), and the first air hole (51) has a larger diameter than 2 mm.

5. The sand leakage prevention vacuum negative pressure insulation can for α - β brick production according to claim 1, wherein the can body is provided with a sand mold, the sand mold is a hollow structure with an upper opening and is composed of a brick sand mold (7a) at the bottom and a riser sand mold (7b) arranged at the top of the brick sand mold (7a), an inner cavity of the hollow structure is a forming space of an electric smelting brick, and insulation sand (10) is filled among the sand mold, the inner wall of the can body and the outer wall of the negative pressure pipeline.

6. The vacuum negative pressure incubator with sand leakage prevention function for α - β brick production as claimed in claim 5, wherein the top surface of the box body is covered with a plastic film (8) for sealing the box body, the plastic film (8) around the upper opening of the sand mold is covered with a high temperature resistant plate (9), and one end of the air suction pipeline (14) extending out of the box body is connected with an air inlet of an air suction machine.

7. The sand leakage prevention vacuum negative pressure insulation can for α - β brick production according to claim 1, wherein the can body is a hollow structure with an upper opening formed by a bottom plate (2) and a can sleeve (1) arranged on the bottom plate, a protruding edge (3) protruding outwards is connected to the outer wall of the bottom of the can sleeve (1), and the protruding edge (3) and the bottom plate (2) are connected and fixed together through a bolt (4).