CN217868616U

CN217868616U - Bead forming furnace for producing glass beads

Info

Publication number: CN217868616U
Application number: CN202222254528.4U
Authority: CN
Inventors: 刘子玮
Original assignee: Tianjin Ibiza Glass Bead Co ltd
Current assignee: Tianjin Ibiza Glass Bead Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-22
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to a bead forming furnace for producing glass beads. The device comprises a heat preservation box, wherein a bead combining material barrel and a bead forming material barrel which are longitudinally arranged are arranged in an inner cavity of the heat preservation box, a first burner, a fine powder conveying pipe and a flame spraying device which are distributed from top to bottom are arranged on the wall of the bead combining material barrel, the flame spraying device sprays flame upwards, and the fine powder conveying pipe sprays glass bead powder in the horizontal direction; the wall of the bead forming material cylinder is provided with a second combustor and a feeding pipe which are distributed from top to bottom, the top of the heat preservation box is provided with a material collecting box provided with a ventilation window, and the tops of the bead combining material cylinder and the bead forming material cylinder are respectively provided with a first discharge port and a second discharge port; the lower parts of the inner cavities of the bead combining material cylinder and the bead forming material cylinder are respectively provided with a first air equalizing net and a second air equalizing net; also comprises a fan. The utility model discloses when realizing conventional beading operation, also can go on and the pearl operation to the superfine powder that is not conform to the requirement, reduced manufacturing cost when having improved work efficiency.

Description

Bead forming furnace for producing glass beads

Technical Field

The utility model belongs to the technical field of glass bead production facility, especially, relate to a bead forming furnace for glass bead production.

Background

The glass beads mean solid or hollow glass beads having a diameter of several micrometers to several millimeters, and are colorless and colored. Beads having a diameter of 0.8mm or more; beads having a diameter of 0.8mm or less are referred to as microbeads.

The glass bead is a novel silicate material and has the characteristics of transparency, adjustable refractive index, directional retro-reflection, smooth surface, good fluidity, electric insulation, stable chemical performance, heat resistance, high mechanical strength and the like. The high-strength solid microspheres are mainly used as grinding media, grinding materials for machining, reinforcing fillers and the like, the light-reflecting solid microspheres are mainly used for traffic signs, art and propaganda advertisements, marine life-saving equipment, performance clothing, directional projection screens and the like, and the hollow microspheres are mainly used for solid buoyancy materials, ultralow-temperature heat-insulating materials, engineering plastics, solid rocket fuel fillers and the like. The method is widely applied to the industries of light industry, chemical industry, textile, traffic, shipping, precision machining and the like.

The existing bead forming furnace can not carry out bead combining operation on the ultrafine powder, the utilization rate of the ultrafine powder is not high, and the quality of the glass beads formed again is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a beading furnace for glass bead production, which has reasonable structural design, high working efficiency and good beading effect, for solving the technical problems in the prior art.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a beading furnace for producing glass beads comprises an insulation box, wherein a bead combining material barrel and a beading material barrel which are longitudinally arranged are arranged in an inner cavity of the insulation box, a first burner, a fine powder conveying pipe and a flame spraying device which extend to the inner cavity of the bead combining material barrel and are distributed from top to bottom are arranged on the wall of the bead combining material barrel, the flame spraying device sprays flame upwards, and the fine powder conveying pipe sprays glass bead powder in the horizontal direction; the wall of the bead forming material cylinder is provided with a second combustor and a feeding pipe which extend to the inner cavity of the bead forming material cylinder and are distributed from top to bottom, the top of the heat preservation box is provided with a material collecting box provided with a ventilation window, the tops of the bead combining material cylinder and the bead forming material cylinder are respectively provided with a first discharging port and a second discharging port, and the first discharging port and the second discharging port penetrate through the top of the heat preservation box and then extend to the inner cavity of the material collecting box; the lower parts of the inner cavities of the bead merging material barrel and the bead forming material barrel are respectively provided with a first air equalizing net and a second air equalizing net; the device also comprises a blower for blowing air to the inner cavities of the bead merging material barrel and the bead forming material barrel.

The utility model has the advantages that: the utility model provides a beading furnace for glass bead production, through setting up and putting feed cylinder, flame injection apparatus, fine powder conveyer pipe and first combustor, can fuse and put the bead with the superfine powder that does not meet the requirements thereby form the glass bead of bigger particle size, increased the beading function for traditional beading furnace, improved the qualification rate of glass bead, greatly reduced the superfine powder cost of melting again; the glass bead powder to be molded can be melted and cooled for molding by arranging the bead material cylinder, the feeding pipe and the second combustor; through set up the case that gathers materials at the top, can carry out the collection that lasts to the glass bead that goes upward, solve the drawback that current heating furnace is not convenient for collect the product. The utility model discloses when realizing conventional beading operation, also can go on and the pearl operation to the superfine powder that is not conform to the requirement, reduced manufacturing cost when having improved work efficiency.

Preferably: a discharge hole is formed in the bottom of the material collecting box, a blanking barrel is installed at the discharge hole, and a condensing pipe is wound on the outer peripheral wall of the blanking barrel; and the vibration motor is arranged on the outer wall of the material collection box.

Preferably: the first heat-preservation partition plate and the second heat-preservation partition plate divide the inner cavity of the heat-preservation box into a cooling cavity, a heat-preservation cavity and a feeding cavity which are distributed vertically; heat preservation interlayers are arranged on the peripheral walls of the cooling cavity and the heat preservation cavity; the bead material cylinder and the bead forming cylinder both penetrate through the first heat-insulating partition plate and the second heat-insulating partition plate; all coiled the cooling coil on the ball material mixing barrel and the balling material barrel periphery wall, the cooling coil is located the cooling intracavity.

Preferably: the heat-insulation box is characterized by further comprising an air inlet vent pipe and an air outlet vent pipe which are arranged on the side wall of the heat-insulation box and communicated with the inner cavity of the heat-insulation cavity, and a heat exchanger is arranged between the air outlet vent pipe and the fan through a gas pipeline.

Preferably: flame injection apparatus is uncovered form and install first filter screen and second filter screen in uncovered department including the mixing box of installing air delivery pipe and gas delivery pipe, one side of mixing box, has seted up first mesh and second mesh on first filter screen and second filter screen respectively.

Preferably: the first combustor comprises a connecting piece, one end of the connecting piece is provided with a combustion head, the other end of the connecting piece is provided with a gas pipe, a feeding pipe and an oxygen pipe, and the gas pipe, the feeding pipe and the oxygen pipe are communicated with the combustion head; the gas-burning device is connected with the gas pipe and the oxygen pipe.

Preferably: the top of the aggregate box is open, and a material box cover is arranged at the open.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic structural view of a flame injection device according to the present invention;

fig. 3 is a schematic structural diagram of a first burner in the present invention.

In the figure: 1. a heat preservation box; 2. a feed cavity; 3. a first air-equalizing net; 4. a bead combining barrel; 5. a first heat-insulating partition plate; 6. a flame spraying device; 6-1, an air conveying pipe; 6-2, a fuel gas conveying pipe; 6-3, a first filter screen; 6-4, first mesh; 6-5, a second filter screen; 6-6, second mesh; 6-7, a mixing box; 7. a first burner; 7-1, a gas pipe; 7-2, a feeding pipe; 7-3, an oxygen tube; 7-4, a combustion head; 7-5, connecting pieces; 7-6, a combustion-supporting device; 8. a fine powder conveying pipe; 9. a heat preservation cavity; 10. an intake air pipe; 11. a second insulating spacer; 12. a cooling coil; 13. a cooling cavity; 14. a condenser tube; 15. blanking the barrel; 16. a material collecting box; 17. a vibration motor; 18. a feed box cover; 19. a first discharge port; 20. cushion blocks; 21. a second discharge opening; 22. a heat-insulating interlayer; 23. an air outlet and ventilation pipe; 24. a heat exchanger; 25. a fan; 26. a beading barrel; 27. a second air-equalizing net; 28. a feed pipe; 29. a second burner.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:

referring to fig. 1, the bead forming furnace for producing glass beads of the present invention includes an insulation box 1, a bead combining tube 4 and a bead forming tube 26 which are vertically disposed are installed in an inner cavity of the insulation box 1, a first burner 7, a fine powder delivery pipe 8 and a flame injection device 6 which are distributed from top to bottom and extend to the inner cavity of the bead combining tube 4 are installed on the wall of the bead combining tube 4, the flame injection device 6 injects flame upwards, and the fine powder delivery pipe 8 injects glass bead powder in a horizontal direction.

The first combustor 7 sprays glass bead powder along the transverse direction and burns the glass bead powder, the fine powder conveying pipe 8 sprays the glass bead powder along the transverse direction, the flame spraying device 6 upwards sprays flame along the vertical direction, and the spraying direction of the flame spraying device 6 is intersected with the spraying direction of the fine powder conveying pipe 8 and the spraying direction of the first combustor 7 in sequence.

Referring further to fig. 2, in the present embodiment, the flame spraying device 6 includes a mixing box 6-7 having an air duct 6-1 and a gas duct 6-2, one side of the mixing box 6-7 is open and a first screen 6-3 and a second screen 6-5 are installed at the open, and a first mesh 6-4 and a second mesh 6-6 are respectively opened on the first screen 6-3 and the second screen 6-5. Wherein, the second filter screen 6-5 and the first filter screen 6-3 are arranged on the mixing box 6-7 from inside to outside in sequence, the diameter of the second mesh 6-6 is larger than that of the first mesh 6-4, and the first mesh 6-4 and the second mesh 6-6 are arranged in a crossing way.

When air and fuel gas respectively enter the mixing box 6-7 through the air delivery pipe 6-1 and the fuel gas delivery pipe 6-2, the air and the fuel gas are mixed in the first stage, and then are gradually and uniformly mixed through the filtering action of the second filter screen 6-5, and then are further and uniformly mixed through the filtering action of the first filter screen 6-3, so that the finally output mixed gas is relatively uniform, and the combustion efficiency is higher.

As shown in fig. 3, the first burner 7 comprises a connecting piece 7-5, one end of the connecting piece 7-5 is provided with a burner head 7-4, the other end is provided with a gas pipe 7-1, a feeding pipe 7-2 and an oxygen pipe 7-3, and the gas pipe 7-1, the feeding pipe 7-2 and the oxygen pipe 7-3 are communicated with the burner head 7-4 through the connecting piece; the first combustor 7 also comprises a combustion-supporting device 7-6 sleeved on the connecting piece 7-5, and the combustion-supporting device 7-6 is connected with the gas pipe 7-1 and the oxygen pipe 7-3.

Referring further to fig. 1, a second burner 29 and a feeding pipe 28 are installed on the wall of the bead forming cylinder 26 and extend to the inner cavity of the cylinder, the second burner 29 takes gas as a medium, and forms a high temperature zone at the middle lower part of the bead forming cylinder 26 through combustion, so that the glass particle raw material is melted when passing through the high temperature zone and is formed into beads under the action of self-tension.

As shown in fig. 1, a first air-equalizing net 3 is installed at the lower part of the inner cavity of the bead combining cylinder 4, a second air-equalizing net 27 is installed at the lower part of the inner cavity of the bead forming cylinder 26, and the bead combining cylinder further comprises a fan 25 for blowing air to the inner cavities of the bead combining cylinder 4 and the bead forming cylinder 26, wherein the fan 25 is communicated with the inner cavities of the bead combining cylinder 4 and the bead forming cylinder 26 through a gas pipeline, and air inlets of the bead combining cylinder 4 and the bead forming cylinder 26 are both positioned below the air-equalizing net. The blower 25 feeds a gas stream through a gas line into the inner chambers of both the bead combining barrel 4 and the bead forming barrel 26, which supports the combustion of each burner, and the gas stream continues to rise with the glass bead product.

Referring to fig. 1, a material collecting box 16 with a ventilation window is installed on the top of the thermal insulation box 1, a filter screen for preventing the glass beads from overflowing is installed on the ventilation window, the top of the material collecting box 16 is open, and a material box cover 18 is installed at the open. A discharge port is formed in the bottom of the material collecting box 16, a charging chute 15 is installed at the discharge port, and the charging chute 15 is provided with a plurality of groups and distributed in an annular array. Around having condenser pipe 14 on the periphery wall of each blanking barrel 15, condenser pipe 14 is the cyclic annular rule setting of spiral, discharge efficiency has been improved through setting up multiunit blanking barrel 15, be used for letting in cooling circulation water through setting up condenser pipe 14, can effectually have the cooling action to the glass bead in blanking barrel 15 with this, and the staff can collect the glass bead in blanking barrel 15 bottom, fall into blanking barrel 15 for the convenience of glass bead in, this embodiment still includes the vibrating motor 17 at the outer wall mounting of case 16 that gathers materials.

In addition, a first discharge port 19 and a second discharge port 21 are respectively arranged at the top of the bead combining cylinder 4 and the bead forming cylinder 26, and the first discharge port 19 and the second discharge port 21 penetrate through the top of the heat insulation box 1 and then extend to the inner cavity of the collecting box 16. The cushion blocks 20 are arranged between the first discharge opening 19 and the second discharge opening 21 and outside the two discharge openings, and by arranging the cushion blocks 20, the space between the first discharge opening 19 and the second discharge opening 21 can be occupied and inclined guide surfaces are formed outside the two discharge openings, so that the glass microspheres can fall into the material falling cylinder 15 through the second discharge opening formed at the bottom of the material collecting box 16. First bin outlet 19 and second bin outlet 21 all are the horn mouth form, and the horn mouth of first bin outlet 19 and second bin outlet 21 is the oblique top in all directional outsides moreover, through the aforesaid set up can be in addition glass bead product composition dispersed discharge, avoid collision and adhesion to the temperature that helps the product drops tentatively.

As shown in fig. 1, in order to recycle the waste heat in the high temperature region of the bead combining cylinder 4 and the bead forming cylinder 26 and avoid resource waste, the present embodiment further includes a second thermal insulation partition plate 11 and a first thermal insulation partition plate 5 disposed in the inner cavity of the thermal insulation box 1, and the first thermal insulation partition plate 5 and the second thermal insulation partition plate 11 divide the inner cavity of the thermal insulation box 1 into a cooling cavity 13, a thermal insulation cavity 9 and a feeding cavity 2 which are distributed vertically; the peripheral walls of the cooling cavity 13 and the heat preservation cavity 9 are both provided with heat preservation interlayers 22; the bead combining barrel 4 and the bead forming barrel 26 both penetrate through the first heat-insulating partition plate 5 and the second heat-insulating partition plate 11; the outer walls of the bead combining barrel 4 and the bead forming barrel 26 are coiled with cooling coils 12, and the cooling coils 12 are positioned in the cooling cavity 13. In the actual working process, cooling air or cooling liquid can be introduced into the cooling coil 12, so that the sintering and molding product in the charging barrel is cooled and redundant heat is recovered.

The embodiment further comprises an air inlet vent pipe 10 and an air outlet vent pipe 23 which are arranged on the side wall of the heat preservation box 1, the air inlet vent pipe 10 and the air outlet vent pipe 23 are both communicated with the inner cavity of the heat preservation cavity 9, and a heat exchanger 24 is arranged between the air outlet vent pipe 23 and the fan 25 through a gas pipeline. Wherein, the waste gas inlet pipe mouth of the heat exchanger 24 is communicated with the air outlet vent pipe 23, a fan is arranged on the waste gas outlet pipe mouth of the heat exchanger 24, and the heat exchange pipe mouth of the heat exchanger 24 is connected with the fan 25 through a gas pipeline. The heat exchanger 24 is arranged to recover the waste heat of the high temperature zone in the charging barrel, and the absorbed heat is reused for preparing the glass beads.

The working process is as follows:

(1) In the bead combining process, glass bead powder to be formed is sprayed and combusted along the transverse direction through a first burner 7, air and fuel gas are simultaneously input into a flame spraying device 6, so that the flame spraying device 6 upwards sprays flame along the vertical direction, and glass bead powder with the particle size range smaller than 38 microns, namely superfine powder, is conveyed through a fine powder conveying pipe 8 and sprayed along the transverse direction, when the flame sprayed by the flame spraying device 6 is contacted with the superfine powder, the superfine powder is melted into a spherical shape, the superfine powder is driven to move towards the spraying direction of the first burner 7, so that the superfine powder in the molten state is collided with the glass beads in the molten state, the superfine powder and the glass beads are mutually melted into glass beads with larger particle size in pairs, therefore, on one hand, the superfine powder is increased, on the other hand, the yield of the glass beads is improved, the glass beads upwards run under the blast action of a fan 25, the glass beads are gradually cooled and hardened after being cooled by a cooling temperature reduction zone wound with a cooling coil 12, and then fall into a material collection box 16 through a first discharge port 19, and fall into a material cylinder 15 under the action of a vibration motor 17; the staff can collect the glass beads at the bottom of the blanking cylinder 15;

(2) In the bead forming process, glass bead powder to be formed is conveyed into the bead forming material cylinder 26 through the feeding pipe 28, upward airflow is provided for an inner cavity of the bead forming material cylinder 26 through the fan 25 and the gas pipeline, materials are hot melted through the second combustor 29, the glass beads are continuously lifted by the airflow, the materials are gradually cooled and hardened after passing through a cooling area wound with the cooling coil pipe 12, then the materials fall into the material collecting box 16 through the second discharge port 21, the glass beads fall into the material falling cylinder 15 to be further cooled under the action of the vibrating motor 17, and a worker can collect the glass beads at the bottom of the material falling cylinder 15.

Claims

1. A beading furnace for glass bead production, characterized by: the device comprises a heat preservation box (1), wherein a bead combining material barrel (4) and a bead forming material barrel (26) which are longitudinally arranged are arranged in an inner cavity of the heat preservation box (1), a first burner (7), a fine powder conveying pipe (8) and a flame spraying device (6) which extend to the inner cavity of the bead combining material barrel (4) and are distributed from top to bottom are arranged on the wall of the bead combining material barrel, the flame spraying device (6) sprays flame upwards, and the fine powder conveying pipe (8) sprays glass bead powder towards the horizontal direction; a second combustor (29) and a feeding pipe (28) which extend to the inner cavity of the balling material cylinder (26) and are distributed from top to bottom are arranged on the cylinder wall of the balling material cylinder, a material collecting box (16) provided with a ventilation window is arranged at the top of the heat preservation box (1), a first discharging port (19) and a second discharging port (21) are respectively arranged at the tops of the balling material cylinder (4) and the balling material cylinder (26), and the first discharging port (19) and the second discharging port (21) penetrate through the top of the heat preservation box (1) and then extend to the inner cavity of the material collecting box (16); the lower parts of the inner cavities of the bead combining material cylinder (4) and the bead forming material cylinder (26) are respectively provided with a first air equalizing net (3) and a second air equalizing net (27); and the device also comprises a fan (25) for blowing air to the inner cavities of the bead combining barrel (4) and the bead forming barrel (26).

2. The beading furnace for producing glass microspheres of claim 1, wherein: a discharge hole is formed in the bottom of the material collecting box (16), a blanking barrel (15) is installed at the discharge hole, and a condensing pipe (14) is wound on the outer peripheral wall of the blanking barrel (15); and the vibration motor (17) is arranged on the outer wall of the material collecting box (16).

3. The beading furnace for producing glass microspheres of claim 1, wherein: the device also comprises a second heat-insulation partition plate (11) and a first heat-insulation partition plate (5) which are arranged in the inner cavity of the heat-insulation box (1), wherein the first heat-insulation partition plate (5) and the second heat-insulation partition plate (11) divide the inner cavity of the heat-insulation box (1) into a cooling cavity (13), a heat-insulation cavity (9) and a feeding cavity (2) which are distributed up and down; heat preservation interlayers (22) are arranged on the peripheral walls of the cooling cavity (13) and the heat preservation cavity (9); the bead combining material barrel (4) and the bead forming material barrel (26) both penetrate through the first heat-insulating partition plate (5) and the second heat-insulating partition plate (11); the outer walls of the bead combining material cylinder (4) and the bead forming material cylinder (26) are respectively coiled with a cooling coil (12), and the cooling coil (12) is positioned in the cooling cavity (13).

4. The beading furnace for producing glass microspheres of claim 3, wherein: the heat preservation box further comprises an air inlet vent pipe (10) and an air outlet vent pipe (23) which are arranged on the side wall of the heat preservation box (1) and communicated with the inner cavity of the heat preservation cavity (9), and a heat exchanger (24) is arranged between the air outlet vent pipe (23) and the fan (25) through a gas pipeline.

5. The beading furnace for producing glass microspheres according to claim 1, wherein: the flame spraying device (6) comprises a mixing box (6-7) provided with an air conveying pipe (6-1) and a fuel gas conveying pipe (6-2), one side of the mixing box (6-7) is open and provided with a first filter screen (6-3) and a second filter screen (6-5), and the first filter screen (6-3) and the second filter screen (6-5) are respectively provided with a first mesh (6-4) and a second mesh (6-6).

6. The beading furnace for producing glass microspheres according to claim 1, wherein: the first combustor (7) comprises a connecting piece (7-5), a combustion head (7-4) is installed at one end of the connecting piece (7-5), a gas pipe (7-1), a feeding pipe (7-2) and an oxygen pipe (7-3) are installed at the other end of the connecting piece (7-5), and the gas pipe (7-1), the feeding pipe (7-2) and the oxygen pipe (7-3) are communicated with the combustion head (7-4); the gas burner is characterized by further comprising a combustion-supporting device (7-6) sleeved on the connecting piece (7-5), wherein the combustion-supporting device (7-6) is connected with the gas pipe (7-1) and the oxygen pipe (7-3).

7. The beading furnace for producing glass microspheres of claim 1, wherein: the top of the material collecting box (16) is open, and a box cover (18) is arranged at the open.