CN216658364U

CN216658364U - Shrinkage-hole-free aluminum oxide pool wall brick sand mold structure

Info

Publication number: CN216658364U
Application number: CN202122611877.2U
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: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-06-03
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a shrinkage-hole-free alumina pool wall brick sand mold structure, which comprises the following components: the casting head sand mold is integrally formed at the upper part of the brick body sand mold, and a casting sand mold is arranged at the position of an opening at the top of the casting head sand mold; the pouring sand mold comprises a sand plate, the sand plate is fixed on an opening in the top of the riser sand mold, a pouring riser is arranged at the center of the top of the sand plate, and the pouring riser penetrates through the sand plate and is communicated with the inner cavity of the riser sand mold. According to the utility model, the sand plate is arranged on the top opening of the sand mould of the original riser, the pouring riser is arranged at the center of the sand plate, the pouring riser with the same size and small size is configured, and during pouring, feed liquid enters the sand mould through the pouring riser to form vertical pouring, so that the sand mould is not impacted.

Description

Shrinkage-hole-free aluminum oxide pool wall brick sand mold structure

Technical Field

The utility model relates to the technical field of pool wall brick sand mold structures, in particular to a shrinkage-hole-free aluminum oxide pool wall brick sand mold structure.

Background

As is known, the larger the volume density of the fused cast zirconia corundum pool wall brick is, the higher the high temperature corrosion resistance in a glass kiln is, the longer the service life is, the volume density of the pool wall brick produced by the traditional method is about 3.75 to 3.8, the industry standard volume density is 3.75, if the method is more market competitive power, the increase of the volume density is a key link, the forming of the pool wall brick is cracks, the products are regarded as being scrapped when the length of the cracks exceeds one third, and the proportion of the cracks determines the productivity and the cost input. The key factor of the forming is the heat preservation effect after casting, and the brick body after casting is a process from high temperature to low temperature, and the process needs to be carried out slowly and uniformly.

The daily pond wall brick production technology is that the sand mould is made at first, and the sand mould has contained the sand mould of rising head and brick body, and after the casting, the rising head belongs to open mode, and a large amount of heat runs off from here this moment, causes the heat dissipation imbalance, and the expend with heat and contract with cold time difference of brick body is big, forms the crackle easily. During casting, feed liquid enters the sand mold to form a flowing arc line, so that the feed liquid erodes the sand mold, the sand mold is damaged under high-temperature impact, and the blank brick has rough surface, scar skin and other defects, meanwhile, the brick body is invaded by impurities, so that the components of the fused brick are polluted, the quality of the fused brick is reduced, and the service life of the fused brick is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shrinkage-hole-free aluminum oxide pool wall brick sand mold structure to solve the defects in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: a shrinkage-hole-free alumina pool wall brick sand mold structure comprises: the casting head sand mold is integrally formed at the upper part of the brick body sand mold, and a casting sand mold is arranged at the position of an opening at the top of the casting head sand mold;

the pouring sand mold comprises a sand plate, the sand plate is fixed on an opening in the top of the riser sand mold, a pouring riser is arranged at the center of the top of the sand plate, and the pouring riser penetrates through the sand plate and is communicated with an inner cavity of the riser sand mold.

As a further description of the above technical solution:

and a plurality of exhaust holes are formed in the outer side of the pouring riser on the surface of the sand plate.

As a further description of the above technical solution:

an air hole cover plate is sleeved on the casting riser in a sliding mode, and heat insulation plugs are arranged at the positions, corresponding to the exhaust holes, of the bottom of the air hole cover plate.

As a further description of the above technical solution:

and the top of the pouring riser is provided with a heat-insulating top cover in a sliding manner, and the heat-insulating top cover is used for sealing the pouring riser.

As a further description of the above technical solution:

the heat-insulation top cover is connected with the air hole cover plate through a transmission mechanism, and the transmission mechanism is assembled to drive the air hole cover plate to move upwards along the pouring riser to open the air hole when the heat-insulation top cover is opened in a sliding mode.

As a further description of the above technical solution:

the transmission mechanism comprises a fixed pulley which is rotatably arranged on the pouring riser, a traction adjusting rope is arranged on the outer side of the fixed pulley in a guiding mode, one end of the traction adjusting rope is connected with the heat preservation top cover, and the other end of the traction adjusting rope is connected with the air hole cover plate.

As a further description of the above technical solution:

and a driving mechanism is arranged on one side of the top of the pouring riser and is in transmission connection with the heat-insulating top cover, and the driving mechanism is used for driving the heat-insulating top cover to be opened and closed for adjustment.

The utility model provides a shrinkage-hole-free aluminum oxide pool wall brick sand mold structure. The method has the following beneficial effects:

this shrinkage-hole-free alumina pool wall brick sand mould structure sets up the sand board on original rising head sand mould open-top, sand board central point puts and sets up a pouring rising head, dispose the little pouring rising head of same specification, feed liquid gets into the sand mould through pouring the rising head during casting, it pours to become the vertical state, can not assault the sand mould, after the casting, because pouring rising head upper portion is by the heat preservation top cap closing cap, the heat loss volume dwindles greatly, be favorable to the equilibrium of expending with heat and contracting with cold to go on, thereby improve the shaping proportion, thermal storage can make the interior liquid time extension of rising head, there is enough time to supply the feed liquid to the brick body, thereby increase the fused brick bulk density, and set up the exhaust hole on the sand board, when pouring, the exhaust hole is opened in step, it is unsmooth to prevent to pour the rising head exhaust during pouring, be favorable to gaseous emission, reduce the inside gas pocket of the brick body, improve the brick body quality.

Drawings

FIG. 1 is a schematic diagram of a pouring state of a sand mold structure of an alumina pool wall brick in the prior art;

FIG. 2 is a schematic view of a casting state of a shrinkage-hole-free alumina pool wall brick sand mold structure provided by the utility model;

FIG. 3 is a schematic structural diagram of a casting sand mold according to the present invention;

fig. 4 is a schematic structural diagram of the transmission mechanism of the present invention.

Illustration of the drawings:

1. sand molding of the brick body; 2. molding a riser sand; 3. pouring a sand mold; 31. a sand plate; 311. an exhaust hole; 32. casting a riser; 33. a gas hole cover plate; 331. a heat-preserving plug; 34. a heat preservation top cover; 35. a drive mechanism; 351. a drive motor; 352. adjusting a fluted disc; 353. a rack; 36. a transmission mechanism; 361. a fixed pulley; 362. and (4) dragging the adjusting rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a shrinkage-hole-free alumina pool wall brick sand mold structure comprises: the casting method comprises the following steps that a brick body sand mold 1 is integrally formed at the upper part of the brick body sand mold 1, a riser sand mold 2 is integrally formed at the upper part of the brick body sand mold 1, and a pouring sand mold 3 is arranged at the position of an opening at the top of the riser sand mold 2; the pouring sand mold 3 comprises a sand plate 31, the sand plate 31 is fixed on the top opening of the riser sand mold 2, a pouring riser 32 is arranged at the top center of the sand plate 31, and the pouring riser 32 penetrates through the sand plate 31 and is communicated with the inner cavity of the riser sand mold 2. An insulating top cover 34 used for sealing the casting riser 32 is arranged at the top of the casting riser 32 in a sliding mode.

The embodiment provides a shrinkage-hole-free aluminum oxide pool wall brick sand mold structure, through set up sand plate 31 on 2 open-tops of original rising head sand mold, sand plate 31 central point puts and sets up one and pours rising head 32, the configuration is with the little rising head 32 of pouring of specification, the feed liquid gets into the sand mold through pouring rising head 32 during the casting, become the vertical state and pour, can not strike the sand mold, after the casting, because pour rising head upper portion by the 34 closing cap of heat preservation top cap, the heat loss reduces greatly, be favorable to the equilibrium of expend with heat and contract with cold going on, thereby improve the shaping proportion, thermal storage can make the liquid time extension in the rising head, there is sufficient time to supply the feed liquid to the brick body, thereby increase the volume density of electric smelting brick body.

A plurality of vent holes 311 are opened in the surface of the sand plate 31 on the outer side of the pouring riser 32. An air hole cover plate 33 is sleeved on the casting riser 32 in a sliding mode, and heat insulation plugs 331 are arranged at positions, corresponding to the exhaust holes 311, of the bottom of the air hole cover plate 33. Further, a plurality of exhaust holes 311 are formed in the outer side, located on the casting riser 32, of the sand plate 31, when casting is conducted, the exhaust holes 311 are opened synchronously, the casting riser 32 with a small specification is prevented from being unsmooth in exhaust when casting is conducted, the exhaust holes 311 are arranged to facilitate exhaust of gas, air holes in the brick body are reduced, and the quality of the brick body is improved.

The insulating top cover 34 is connected with the vent cover plate 33 through a transmission mechanism 36, and the transmission mechanism 36 is assembled in such a way that when the insulating top cover 34 slides to be opened, the transmission mechanism 36 synchronously drives the vent cover plate 33 to move upwards along the pouring riser 32 to open the vent hole 311. The transmission mechanism 36 comprises a fixed pulley 361 which is rotatably arranged on the pouring riser 32, a traction adjusting rope 362 is arranged outside the fixed pulley 361 in a guiding manner, one end of the traction adjusting rope 362 is connected with the heat-insulating top cover 34, and the other end of the traction adjusting rope 362 is connected with the air hole cover plate 33. Specifically, when the heat insulation top cover 34 at the top of the pouring riser 32 is opened in a horizontal moving mode, the heat insulation top cover 34 synchronously pulls the traction adjusting rope 362, the traction adjusting rope 362 is matched with the fixed pulley 361 to drive the air vent cover plate 33 to move upwards along the pouring riser 32 so as to open the air vent 311, so that when the heat insulation top cover 34 is opened to perform pouring operation, the air vent 311 is synchronously opened, and similarly, when the heat insulation top cover 34 is closed, the air vent cover plate 33 synchronously moves downwards along the pouring riser 32 to be matched with the heat insulation plug 331 to seal the air vent 311, so that the operation is more convenient.

One side of the top of the pouring riser 32 is provided with a driving mechanism 35, the driving mechanism 35 is in transmission connection with the heat-insulating top cover 34, and the driving mechanism 35 is used for driving the heat-insulating top cover 34 to be opened and closed for adjustment. The driving mechanism 35 comprises a driving motor 351 fixed on one side of the top of the pouring riser 32, an adjusting fluted disc 352 is fixed on an output shaft of the driving motor 351, a tooth frame 353 is arranged at the bottom of the heat-insulating top cover 34 along the moving direction of the heat-insulating top cover, and the tooth frame 353 is meshed with the adjusting fluted disc 352.

The working principle is as follows: when the shrinkage-hole-free aluminum pool wall brick sand mold structure is used, the adjusting fluted disc 352 is driven to rotate by the driving motor 351, the adjusting fluted disc 352 is matched with the tooth frame 353 to drive the heat-insulating top cover 34 to horizontally move and open from the casting riser 32, then casting operation can be carried out in the brick sand mold 1 through the casting riser 32, the sand plate 31 is arranged on the top opening of the original riser sand mold 2, the casting riser 32 with the same specification is arranged at the central position of the sand plate 31, the casting riser 32 with the same specification is configured, feed liquid enters the sand mold through the casting riser 32 during casting and is cast in a vertical state without impacting the sand mold, after casting, as the upper part of the casting riser is sealed by the heat-insulating top cover 34, the heat loss is greatly reduced, the balanced operation of thermal expansion and cold contraction is facilitated, the forming proportion is improved, the liquid time in the riser can be prolonged, the feed liquid is supplemented to the brick body for enough time, and the volume density of the electric smelting brick body is increased, and a plurality of exhaust holes 311 are formed in the sand plate 31 and positioned on the outer side of the casting riser 32, when casting is performed, the exhaust holes 311 are opened synchronously, the problem that the casting riser 32 with a small specification is unsmooth in exhaust during casting is prevented, the exhaust holes 311 are arranged to facilitate the exhaust of gas, air holes in the brick body are reduced, and the quality of the brick body is improved.

Claims

1. A shrinkage-hole-free alumina pool wall brick sand mold structure comprises: the riser sand mold is characterized in that a pouring sand mold (3) is arranged at the position of an opening at the top of the riser sand mold (2);

the pouring sand mold (3) comprises a sand plate (31), the sand plate (31) is fixed on an opening at the top of the riser sand mold (2), a pouring riser (32) is arranged at the center of the top of the sand plate (31), and the pouring riser (32) penetrates through the sand plate (31) and is communicated with an inner cavity of the riser sand mold (2).

2. The shrinkage-free alumina pool wall brick sand mold structure according to claim 1, wherein a plurality of exhaust holes (311) are formed in the surface of the sand plate (31) on the outer side of the casting riser (32).

3. The shrinkage-hole-free alumina pool wall brick sand mold structure according to claim 2, wherein an air hole cover plate (33) is sleeved on the casting riser (32) in a sliding mode, and heat insulation plugs (331) are arranged at positions, corresponding to the air holes (311), of the bottom of the air hole cover plate (33).

4. The shrinkage-free alumina pool wall brick sand mold structure according to claim 3, wherein an insulating top cover (34) used for sealing the casting riser (32) is slidably arranged at the top of the casting riser (32).

5. A shrinkage-free alumina pool wall brick sand mold structure according to claim 4, wherein the heat-insulating top cover (34) is connected with the air vent cover plate (33) through a transmission mechanism (36), and the transmission mechanism (36) is assembled in such a way that when the heat-insulating top cover (34) is opened in a sliding manner, the transmission mechanism (36) synchronously drives the air vent cover plate (33) to move upwards along the pouring riser (32) so as to open the exhaust hole (311).

6. The shrinkage-hole-free alumina pool wall brick sand mold structure according to claim 5, wherein the transmission mechanism (36) comprises a fixed pulley (361) rotatably arranged on the casting riser (32), a traction adjusting rope (362) is arranged outside the fixed pulley (361) in a guiding manner, one end of the traction adjusting rope (362) is connected with the heat insulation top cover (34), and the other end of the traction adjusting rope (362) is connected with the air hole cover plate (33).

7. The shrinkage-hole-free alumina pool wall brick sand mold structure according to claim 4, wherein a driving mechanism (35) is arranged on one side of the top of the pouring riser (32), the driving mechanism (35) is in transmission connection with the heat-insulating top cover (34), and the driving mechanism (35) is used for driving the heat-insulating top cover (34) to be opened and closed for adjustment.