CN-117843221-B - Glass ball manufacturing device

CN117843221BCN 117843221 BCN117843221 BCN 117843221BCN-117843221-B

Abstract

The invention discloses a glass ball manufacturing device which comprises a raw material supply pipe, a middle pipe, a discharging hole, a disc-shaped part, a gas supply cavity and a particle raw material, wherein particle raw materials are sprayed out of the upper end of the raw material supply pipe under the pushing of fuel gas, the lower part of the middle pipe is sleeved outside the upper part of the raw material supply pipe, a first annular gap is defined between the lower part of the middle pipe and the upper part of the raw material supply pipe and used as an oxygen supply channel, an inner hole in the upper part of the middle pipe is positioned above the raw material supply pipe to form a combustion cavity, the discharging hole is formed, the disc-shaped part is arranged at the upper port of the raw material supply pipe and is provided with a plurality of spraying holes which penetrate through axially, a gas supply cavity is formed in the inside, a plurality of gas supply holes are formed in the periphery of the bottom, the particle raw materials and the fuel gas are sprayed out upwards through the spraying holes, the periphery of the upper end of each spraying hole is provided with a plurality of spraying holes which are circumferentially distributed around the spraying holes, and oxygen in the supply hole passes through the spraying holes and is sprayed out of the upper end of the spraying holes to be used for mixing with the fuel gas and the particle raw materials sprayed out of the spraying holes.

Inventors

LIU WENJIE
Niu Leitao
LIU JIASHENG
LIU JIAQI

Assignees

河北驰野玻璃珠有限责任公司

Dates

Publication Date: 20260508
Application Date: 20240102

Claims (10)

1. A glass ball manufacturing apparatus, comprising: a raw material supply pipe vertically arranged, wherein the granular raw material moves upwards along the raw material supply pipe under the pushing of the fuel gas and is sprayed out from the upper end of the raw material supply pipe; The lower part of the intermediate pipe is sleeved outside the upper part of the raw material supply pipe, a first annular gap is defined between the lower part of the intermediate pipe and the upper part of the raw material supply pipe to serve as an oxygen supply channel, an inner hole of the upper part of the intermediate pipe is positioned above the raw material supply pipe to form a combustion cavity, and the particle raw material and fuel gas sprayed from the upper end of the raw material supply pipe enter the combustion cavity; the discharge port is formed above the combustion chamber; A disk member that is provided at an upper port of the raw material supply pipe and that closes off the upper port of the raw material supply pipe and an upper port of the first annular space, wherein: The disc-shaped part is provided with a plurality of spraying holes which are axially communicated, an air supply cavity formed in the disc-shaped part, and a plurality of air supply holes which are arranged on the periphery of the bottom and are used for communicating the air supply cavity with the oxygen supply channel, wherein the particle raw materials and the fuel gas are sprayed upwards through the spraying holes, and the oxygen from the oxygen supply channel enters the air supply cavity through the air supply holes; The periphery of the upper end of each spray hole is provided with a plurality of spray holes, a plurality of spray holes are circumferentially distributed around the spray holes, and the spray holes penetrate through the air supply cavity, so that oxygen in the air supply cavity passes through the spray holes and is sprayed out of the upper ends of the spray holes to be mixed with fuel gas and particle raw materials sprayed out of the spray holes.
2. The glass ball manufacturing apparatus of claim 1, wherein the disk member comprises a disk-shaped body and a cover snapped onto the disk-shaped body; The upper end of each cylinder penetrates through the sealing cover and protrudes out of the sealing cover, and the spraying holes penetrate through the bottom of the disc-shaped main body and the upper end of each cylinder, so that fuel gas and particle raw materials are sprayed out of the upper end of each cylinder; The cover and the disc-shaped main body define the air supply cavity therebetween; a conical table is formed on the sealing cover at the periphery of the cylinder, and the upper end of the air injection hole penetrates through to the slope surface of the conical table; the gas injection holes extend obliquely such that upper ports of the gas injection holes have an oblique orientation, whereby oxygen injected from the upper ports of the gas injection holes flows spirally.
3. The glass bulb manufacturing apparatus according to claim 2, further comprising an outer tube, the outer tube being sleeved outside the intermediate tube, a second annular gap being defined between the outer tube and the intermediate tube as an insulating gas supply channel, a plurality of gas injection slits being provided in a wall of the intermediate tube corresponding to an upper portion or an upper portion of the combustion chamber, the plurality of gas injection slits penetrating through a wall of the intermediate tube and being circumferentially arranged, the plurality of gas injection slits extending obliquely with respect to a radial direction, such that an insulating gas of the insulating gas supply channel passes through the gas injection slits to enter the intermediate tube and flows circumferentially along the wall of the intermediate tube.
4. A glass bulb manufacturing apparatus as in claim 3, wherein the jet slit comprises two sets arranged axially apart.
5. The glass ball manufacturing apparatus according to claim 2, wherein a tapered pilot hole section is formed at a lower portion of the blast hole.
6. The glass bulb manufacturing apparatus of claim 1, wherein a cooling chamber is attached to an upper end of the intermediate tube, and the discharge port is attached above the cooling chamber.
7. The glass bulb manufacturing apparatus according to claim 3, wherein a first lateral air supply mechanism is provided on the outer periphery of the lower portion of the raw material supply pipe; The first lateral gas feeding mechanism is provided with a first annular gas feeding cavity surrounding the raw material feeding pipe, a plurality of first gas feeding holes are arranged on the pipe wall of the raw material feeding pipe corresponding to the first annular gas feeding cavity, and the first annular gas feeding cavity is used for providing fuel gas.
8. The glass bulb manufacturing apparatus according to claim 3, wherein a lower end of the intermediate tube is shorter than the raw material supply tube, the lower end of the intermediate tube being blocked by a first end cap; the periphery of the middle pipe is provided with a second lateral air supply mechanism; The second lateral air supply mechanism is provided with a second annular air supply cavity surrounding the middle pipe, a plurality of second air supply holes are arranged on the pipe wall of the middle pipe corresponding to the second annular air supply cavity, and the second annular air supply cavity is used for supplying oxygen.
9. The glass bulb manufacturing apparatus of claim 3, wherein the lower end and the upper end of the outer tube are each correspondingly shorter than the lower end and the upper end of the intermediate tube; a third lateral air supply mechanism is arranged at the periphery of the outer tube; the third lateral air supply mechanism is provided with a third annular air supply cavity surrounding the outer tube, a plurality of third air supply holes are arranged on the tube wall of the outer tube corresponding to the third annular air supply cavity, and the third annular air supply cavity is used for providing isolation gas.
10. The glass bulb manufacturing apparatus of claim 3, wherein the barrier gas comprises oxygen.

Description

Glass ball manufacturing device Technical Field The invention relates to the technical field of glass product manufacturing, in particular to a glass ball manufacturing device. Background The basic process for manufacturing glass spheres is to heat a particulate raw material (e.g., silica particles) by combustion of a gas so that the surface of the particulate raw material is softened and thus spheroidized to form glass spheres. In the prior art, an apparatus for manufacturing glass beads generally includes a raw material supply pipe, a combustion chamber formed above the raw material supply pipe, a discharge port formed above the combustion chamber, an oxygen supply passage formed at the periphery of the combustion chamber, the oxygen supply passage penetrating through a wall of the combustion chamber to form an oxygen supply port, and a gas supply passage for supplying gas, the raw material supply pipe being simultaneously used as a gas supply passage for avoiding the use of other gas as a power for pushing up the particulate raw material, whereby the gas is premixed with the particulate raw material and pushes up the particulate raw material by the pressure of the gas to convey the particulate raw material to the combustion chamber while the gas is also entered into the combustion chamber, and the oxygen is laterally entered into the combustion chamber through the oxygen supply port to be mixed with the gas, and is burned to generate heat to heat the particulate raw material, thereby spheroidize the particulate raw material. The above-described apparatus for manufacturing glass spheres in the prior art has the following drawbacks: Since oxygen enters the combustion chamber from the side portion, it is difficult for the oxygen to be sufficiently mixed with the fuel gas inside the combustion chamber, thereby causing the inside to be difficult to be sufficiently burned, so that it is difficult to sufficiently spheroidize the inside particulate raw material, and in addition, the oxygen and the fuel gas which are not subjected to the mixed combustion may be burned by mixing at the discharge port, which causes spheroidized particles to be secondarily heated to spheroidize, thereby causing the glass spheres to be deteriorated. In addition, since the upper end of the raw material supply pipe is an open port, oxygen may reversely enter the supply pipe and may be mixed with fuel gas in the supply pipe to be burned, thereby generating an undesirable "flashback" phenomenon. Disclosure of Invention In view of the above technical problems in the prior art, embodiments of the present invention provide a glass ball manufacturing apparatus. In order to solve the technical problems, the technical scheme adopted by the embodiment of the invention is as follows: A glass ball manufacturing apparatus comprising: a raw material supply pipe vertically arranged, wherein the granular raw material moves upwards along the raw material supply pipe under the pushing of the fuel gas and is sprayed out from the upper end of the raw material supply pipe; The lower part of the intermediate pipe is sleeved outside the upper part of the raw material supply pipe, a first annular gap is defined between the lower part of the intermediate pipe and the upper part of the raw material supply pipe to serve as an oxygen supply channel, an inner hole of the upper part of the intermediate pipe is positioned above the raw material supply pipe to form a combustion cavity, and the particle raw material and fuel gas sprayed from the upper end of the raw material supply pipe enter the combustion cavity; the discharge port is formed above the combustion chamber; A disk member that is provided at an upper port of the raw material supply pipe and that closes off the upper port of the raw material supply pipe and an upper port of the first annular space, wherein: The disc-shaped part is provided with a plurality of spraying holes which are axially communicated, an air supply cavity formed in the disc-shaped part, and a plurality of air supply holes which are arranged on the periphery of the bottom and are used for communicating the air supply cavity with the oxygen supply channel, wherein the particle raw materials and the fuel gas are sprayed upwards through the spraying holes, and the oxygen from the oxygen supply channel enters the air supply cavity through the air supply holes; The periphery of the upper end of each spray hole is provided with a plurality of spray holes, a plurality of spray holes are circumferentially distributed around the spray holes, and the spray holes penetrate through the air supply cavity, so that oxygen in the air supply cavity passes through the spray holes and is sprayed out of the upper ends of the spray holes to be mixed with fuel gas and particle raw materials sprayed out of the spray holes. Preferably, the disc-shaped part comprises a disc-shaped main body and a sealing cover buckled on the disc-shaped main body; The upper