CN2470357Y

CN2470357Y - Bell jar type glaze spraying device

Info

Publication number: CN2470357Y
Application number: CN 01214476
Authority: CN
Inventors: 肖南
Original assignee: Sichuan Suopai Science And Technology Development Co ltd
Current assignee: ANBAO PAPER INDUSTRY GROUP Co Ltd CHENGDU
Priority date: 2001-03-16
Filing date: 2001-03-16
Publication date: 2002-01-09
Anticipated expiration: 2011-03-16

Abstract

A bell jar type glaze spraying device relates to a device for spraying glaze on wall and floor tiles, and is characterized in that a ball valve 2 is connected to the lower part of an upper funnel 1, a cylindrical filter screen 3 is placed at the lower end of the ball valve 2, a pillar-shaped upper bell jar 5 is sleeved outside the filter screen 3, a middle bell jar 6 shaped like a bell jar is sleeved outside the upper bell jar 5, the upper bell jar 5 and the middle bell jar 6 are both placed on a lower bell jar 7 with a bell jar-shaped surface, the lower edge of the lower bell jar 7 is in a knife edge shape, a metal ring 4 used for controlling the flow direction of glaze liquid is placed on the upper edge of the middle bell jar 6, the lower bell jar 7 is suspended above a conveyor belt 10 by a bracket 9, and a glaze receiving disc 8 is placed below the conveyor belt 10. The glaze slip flows into the filter screen 3 from the upper funnel 7, flows down through the outer surfaces of the upper bell jar 5, the middle bell jar 6 and the lower bell jar 7 to form an arc-shaped glaze curtain, and is sprayed on the wall and floor tile green body on the conveyor belt 10 for glazing, and the glaze surface is uniform and has no bubbles and pinholes.

Description

The bell-jar slip shower

The utility model relates to the bell-jar slip shower, is the device that is used for the surface of wall floor tile or architectural pottery is drenched glaze.

Prior art is the duck-beak type slip shower, but during this device glazing, very high to the dimension precision requirement of flat mouthful of the rectangle of slip shower.Requirement to glaze slip is also very high, otherwise the glaze curtain is very not smooth, has influenced the glazing quality greatly.In addition, when transferring thickness, because effects such as surface tension are difficult to obtain expected effect by adjusting the rectangular opening width.Also have, glaze slip is except easily being involved in gas in the continuous stirring of preparation process, conveying subsequently and wherein the degraded of some component all can produce gas, the degasification measure that this device is taked is far from being enough.Thereby tend to occur defectives such as bubble, pin hole after the glaze firing on the base substrate.

The purpose of this utility model is to provide a kind of bell-jar slip shower that glaze is even, the bubble pin hole is few that drenches.

The technical solution of the utility model:

Be connected with ball valve 2 in the bottom of upper hopper 1, place columniform filtering net 3 in the lower end of ball valve 2, the filtering net 3 outer upper inverted bells 5 that are with pillar base type, the tangible middle bell jar 6 of upper inverted bell 5 overcoats as bell jar, upper inverted bell 5 and middle bell jar 6 all are placed on the surface on the lower inverted bell 7 of bell shape, and lower inverted bell 7 lower edges are knife edge type, are used to control the upper edge that metal ring 4 that glaze liquid flows to is placed on middle bell jar 6, carriage 9 is suspended in travelling belt 10 tops with lower inverted bell 7, and connect glaze plate 8 is put in travelling belt 10 belows.

Principle of work:

Fig. 1 is a bell-jar slip shower structure iron.Form the space 12 of a storage glaze slip in the upper inverted bell 5, form the space 13 of a storage glaze slip in the middle bell jar 6; Glaze slip is through flowing in the upper hopper 1 for the glaze pipe and keeping certain glaze position, flow into the filtering net 3 from upper hopper 1 again, freely overflow from filtering net 3, on upper inverted bell 5 surfaces 14, form in the space 13 in the glaze curtain inflow middle bell jar 6, after fill in the space in the middle bell jar 6 13, see Fig. 4, Fig. 6 and promptly go out glaze mouth 23 because metal ring 4 bottoms have 1 flat mouth of arc, glaze slip overflows from the openning that forms between the upper edge that goes out glaze mouth 23 and middle bell jar 6, outside surface 15 arcs at middle bell jar 6 are sprawled to dirty, flow to the curved surfaces 16 of lower inverted bell 7.The lower edge mouth 11 of flowing through flows down from lower edge mouth 11, forms arc glaze curtain vertical drop uniformly continuously.When travelling belt 10 moves, drive the wall brick and ground brick body from the glaze curtain down by the time, billet surface has just adhered to one deck glaze.

See Fig. 5, Fig. 6, if carry out twice pouring sleeve continuously, the arc that can split two correspondences in metal ring 4 bottoms promptly goes out glaze mouth 23 for flat mouthful, can form two glaze curtains at the lower edge mouth 11 of lower inverted bell 7 simultaneously, and the base substrate that passes through is just by double glazing.Unnecessary glaze slip then flows into connect glaze plate 8, uses by collection back, Sheng glaze pond, bottom is recyclable again.

Advantage of the present utility model is: compare with the duck-beak type slip shower, glaze slip is flowed down by internal surface and becomes outside surface and flow down, and linear glaze curtain has become arc.In addition, it can also carry out twice glazing continuously.Pattern layout is an arc according to fluid mathematics on the bell jar surface, and it is mobile continuously and stably that glaze slip can keep thereon well; Adopt degasifying device, improve glaze layer internal soundness; Glair overflows from the upper edge of upper inverted bell 5, middle bell jar 6, has avoided the generation of eddy current.Help gas purging, the cambered surface of lower inverted bell 7 lower rims is approaching straight down, and is processed into cutting edge.Make things convenient for glaze slip to fall.

1, according to the flow characteristics of glaze slip, lower inverted bell and middle bell jar surface shape are designed to streamlined curved surface, glaze slip is flowed steadily.

2, the pouring glaze method of three bell jars has guaranteed the flowing time of glaze slip in slip shower, has both helped the eliminating of interior gas of glaze slip and impurity, helps steadily sprawling of glaze slip again.

3, the lower edge with lower inverted bell 7 is designed to the cutting edge shape, guarantees that the glaze curtain is uniform and stable continuously.

4, in upper inverted bell 5 and upper hopper 1, be equipped with the effect that filter screen plays the degasification deslagging, improved the overglaze inner quality.

5, upper hopper 1 keeps continuously the glaze curtain and is stable.

6, the utility model has significantly improved overglaze homogeneity and stability, has improved the overglaze inner quality, has improved the glaze quality of wall floor tile.

Description of drawings:

Fig. 1: bell-jar slip shower structure iron of the present utility model.

Fig. 2: upper hopper 1 cut-away view among Fig. 1.

Fig. 3, lower inverted bell 7 structure iron among Fig. 1.

Fig. 4: metal ring 4 front views among Fig. 1 have a direction to go out glaze mouth 23.

Fig. 5: metal ring 4 front views among Fig. 1 have both direction to go out glaze mouth 23.

Fig. 6: metal ring 4 vertical views among Fig. 1.

Embodiment: see Fig. 1, Fig. 2, upper hopper 1 is a bilayer structure, and internal layer is a degasification inner core 18, and the filter screen 19 of a sleeve shaped is installed along its sidewall above degasification inner core 18; Skin is an outer hopper 20, and the lower sides of outer hopper 20 has 17, one of glaze slurry inlets to advance glaze pipe 22 connection glaze slurry inlet 17 and degasification inner cores 18, and outer hopper 20 upper portion side wall have upflow tube 21,

Principle: adopt filter screen 19 also to use the mode of upwards overflow to promote the forming core of gas.Make pump inhale next glaze slip process import 17, advance glaze pipe 22, at first enter the degasification inner core 18 of internal layer, glaze slip is full of the back and upwards overflows process filter screen 19 from degasification inner core 18 like this, to outer hopper 20, it is the substrate forming core with filter screen 19 that " filtration " of process filter screen 19 makes a big chunk gas.After bubble flows into upper inverted bell 5 by valve 2, bubble is flowed in the middle bell jar 6 again behind filter screen 3.Behind the bubble forming core,, promptly break away from the substrate come-up through of short duration growth process.

Degasification inner core 18 also helps to avoid to produce vortex and bring gas once more into when ball valve 2 flows down at glaze slip.Except have one advance glaze pipe 22 and degasification inner core 18 link to each other, also a upflow tube 21 is installed at the outside certain altitude place of outer hopper 20, if glaze slip can overflow when exceeding this height voluntarily, it is stable that the glaze position is remained, and the dirty speed of glaze slip is controlled by ball valve 2 (Fig. 1).The design of other auxiliary equipment.

Other auxiliary equipment comprises support, column, carriage 9 and takes out slurry pond for recovering etc.Support is used for holding storage glaze funnel, and its support end is fixed on the column.Two projections of carriage 9 are fixed from the bottom and are drenched the glaze bell jar, and the two ends of carriage 9 are fixed by bolts on two root posts 22, and carriage 9 is subjected to the effect of two single loads.The glaze slip pond for recovering is used for recycling from drenching the glaze bell jar and falls and do not drench glaze slip on the base substrate.

Processing parameter

Operating ambient temperature: room temperature wall floor tile specification: 300 * 300-1000 * 1000 (units: mm)

Drench glaze thickness: 2mm conveyer line speed: 2-7m/s

Glaze pulp density: 1.4-1.5g/cm glaze slurry viscosity: 4Pa.S

Glaze slip pH value: 6-8 glaze fineness: 100-200 orders

Claims

1, bell-jar slip shower, it is characterized in that: be connected with ball valve 2 in the bottom of upper hopper 1, place columniform filter screen 3 in the lower end of ball valve 2, the filter screen 3 outer upper inverted bells 5 that are with pillar base type, the tangible middle bell jar 6 of upper inverted bell 5 overcoats as bell jar, upper inverted bell 5 and middle bell jar 6 all are placed on the surface on the lower inverted bell 7 of bell shape, lower inverted bell 7 lower edges are knife edge type, be used to control the upper edge that metal ring 4 that glaze liquid flows to is placed on middle bell jar 6, carriage 9 is suspended in travelling belt 10 tops with lower inverted bell 7, and connect glaze plate 8 is put in travelling belt 10 belows.

2, bell-jar slip shower according to claim 1 is characterized in that: upper hopper 1 is bilayer structure, and internal layer is a degasification inner core 18, and the filter screen 19 of a sleeve shaped is installed along its sidewall above degasification inner core 18; Skin is an outer hopper 20, and the lower sides of outer hopper 20 has 17, one of glaze slurry inlets to advance glaze pipe 22 connection glaze slurry inlet 17 and degasification inner cores 18, and outer hopper 20 upper portion side wall have upflow tube 21.