Anti-erosion device for substrate glass production feeding system

Abstract

The utility model relates to the technical field of glass substrate processing and manufacturing, and discloses an anti-erosion device for a substrate glass production feeding system, which effectively reduces the erosion of a high-temperature environment to a feeding machine and a tank furnace feeding port. According to the device, the spiral shaft is combined with the water-cooling or air-cooling sleeve, so that the cooling protection of the high-temperature spiral shaft is realized. The system further comprises a stock bin, a middle bin and a first spiral conveyor, and storage and efficient conveying of the base stock are ensured. In addition, the device is provided with a fire blocking ring and a compressed air system, flame and hot air are prevented from being sprayed out, and the pressure of compressed air can be adjusted through a valve and a pressure gauge. The flashboard design of the first spiral conveyor allows flexible control of the flow direction and the feeding speed of the base material, meanwhile, the cleaning and mounting processes are simplified, the maintenance cost is reduced, and the device is suitable for high-temperature glass production and other environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass substrate processing and manufacturing technical field, concretely is a kind of anti-erosion device for substrate glass production feeding system. BACKGROUND

[0002] In liquid crystal substrate glass production and manufacture, feeding system is an important component of melting.In actual production, powder is entered into tank furnace through feeding system.Powder is kept to be inputted at required rate, so as to ensure the stability of process.

[0003] Because powder is sintered after being inputted into tank furnace, is accumulated in feeding port, affects the input of powder, needs to clean feeding port, in cleaning process, the longer operation time is, the greater pool furnace fluctuation is caused.Meanwhile, powder is accumulated in front of feeding machine, and high-temperature protection operation is played to feeding machine shaft and sleeve, after cleaning, after feeding system and tank furnace are connected, because powder is not accumulated initially, tank furnace high-temperature gas can be high-temperature erosion to feeding machine sleeve and feeding port brick.

[0004] Therefore we propose a kind of anti-erosion device for substrate glass production feeding system to solve the problems in the above background. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a kind of anti-erosion device for substrate glass production feeding system to solve the problems in the above background.

[0006] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0007] A kind of anti-erosion device for substrate glass production feeding system, including the feeding system for feeding to tank furnace and the anti-erosion structure for high-temperature protection to feeding system, feeding system includes the feeding machine with helical shaft, and the anti-erosion structure includes cooling sleeve and compressed air pipe, cooling sleeve is sleeved in the helical shaft outside of feeding machine, one end of helical shaft and its outside cooling sleeve is fixedly communicated with tank furnace, and compressed air pipe enters tank furnace inside along cooling sleeve direction.

[0008] Compared with prior art, the beneficial effects reached by the utility model are:

[0009] Cooling sleeve and helical shaft outer periphery rotate and cooperate in the utility model, and the internal cavity of cooling sleeve is injected with cold water (or cold gas) by water cooling (or air cooling) mode, to carry out temperature reduction protection to helical shaft and cooling sleeve, reduce the erosion of high temperature and flame.And fire-retardant ring is fixed at the position close to discharge port of cooling sleeve.Fire-retardant ring prevents the flame in tank furnace from being sprayed out from the gap between cooling sleeve and tank furnace feeding port, to avoid high-temperature erosion to helical shaft and cooling sleeve.

[0010] The base material channel formed between the screw shaft and the cooling sleeve is connected with an external air compressor through a compressed air pipe. When the base material is pushed to the discharge port of the cooling sleeve, the cooling gas in the compressed air pipe is pressurized and then delivered to the upper cavity of the feeder through the pipe to form a positive pressure. The positive pressure can prevent the flame or hot air inside the pool furnace from being sprayed outward from the gap between the front end of the cooling sleeve and the powder pile inside the pool furnace, further reducing erosion. When cleaning the discharge port, the sprayed low-temperature high-pressure gas can avoid the reduction of powder accumulation during cleaning, the outward spraying of pool furnace flame and high-temperature gas, thereby protecting the feeder and related components. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The cooling sleeve and the pool furnace are connected in a cross-sectional structure.

[0012] Wherein: 1, cooling sleeve; 2, compressed air pipe; 3, screw shaft; 4, fire ring; 5, valve; 6, pressure gauge; 7, pool furnace. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0014] Embodiment one:

[0015] Please refer to Figure 1 The present application provides a technical solution:

[0016] An anti-erosion device for a base material glass production feeding system, comprising a screw shaft 3 and a cooling sleeve 1 of a feeder, the screw shaft 3 of the feeder is composed of a shaft body and continuous spiral blades, and the outer periphery thereof is cylindrical.

[0017] The cooling sleeve 1 is a cylindrical sleeve which is rotationally fitted with the outer periphery of the screw shaft 3 of the feeding machine, and has an open end as a discharge port and a closed end. An upper side wall of the cooling sleeve 1 near the closed end is provided with an inlet port. A rotating shaft of the driving component of the feeding machine is fixedly connected with the shaft body of the screw shaft 3 of the feeding machine through the closed end of the cooling sleeve 1. One end of the cooling sleeve 1 at the discharge port is fixedly connected with the pool wall at the inlet port of the pool furnace 7 through bolts. When the powder material (hereinafter referred to as "base material") for producing the substrate glass is fed, the base material enters the inside of the cooling sleeve 1 through the inlet port. The rotating shaft of the driving component of the feeding machine drives the screw shaft 3 of the feeding machine to rotate. The screw shaft 3 of the feeding machine pushes the base material in the inside of the cooling sleeve 1 to move towards the discharge port through the rotation of the screw blades, and then enters the pool furnace 7 to be heated and melted into liquid raw material.

[0018] Further, the feeding machine is externally provided with a material bin for storing the base material, an intermediate bin and a first screw conveyor which is a conveying device with the same structure as the feeding machine.

[0019] The soft connection can be achieved by a bendable corrugated pipe, a metal hose, a fiber cloth or the like. The soft connection can effectively absorb the vibration and impact in the pipeline system, and reduce the vibration energy transmitted to other equipment or structures. This helps to protect the normal operation of the equipment, reduces the influence of noise and vibration on the surrounding environment, and provides displacement compensation for the pipeline system to allow the pipeline to move freely under the displacement caused by thermal expansion and contraction, equipment installation error or other factors without causing excessive stress to the pipeline system.

[0020] During the material conveying, the first screw conveyor is used to convey the base material in the material bin to the intermediate bin, and the base material in the intermediate bin is conveyed to the pool furnace 7 by the feeding machine.

[0021] During the conveying, the rotation frequency of the first screw conveyor and the feeding machine can be adjusted to control the feeding speed. The higher the rotation frequency, the higher the output efficiency, and vice versa. When the rotation frequency is zero, the conveying is stopped.

[0022] The intermediate bin can buffer and store the powder material, and ensure the continuity of the feeding.

[0023] Further, the first screw conveyor gate is rotationally connected between the bottom of the intermediate bin and the inlet port of the feeding machine.

[0024] When the feeding is carried out, the first screw conveyor gate is rotated clockwise, the bottom of the intermediate bin is communicated with the feeding inlet of the feeding machine, the base material flows to the feeding channel of the feeding machine, the feeding machine is started to feed the pool furnace 7, and glass production and processing are carried out.

[0025] When the feeding needs to be stopped, the first screw conveyor gate is reversely rotated, the channel between the bottom of the intermediate bin and the feeding inlet of the feeding machine is closed, the base material in the intermediate bin stops flowing to the inside of the feeding machine, and the base material supply to the pool furnace 7 is stopped.

[0026] The bottom of the feeding machine on the left and right sides is provided with fixed bolts, when the pool furnace 7 needs to be separated from the feeding machine, the first screw conveyor gate is rotated, the gate for the powder in the intermediate bin to flow to the feeding machine is closed, and the bolts are removed to push out the feeding machine.

[0027] The cooling sleeve 1 of the feeding machine is fixedly connected with a fireproof ring 4 close to the discharge port, the fireproof ring 4 is fixed with the outer wall of the cooling sleeve 1 in a gluing manner, and the fireproof ring 4 is fixedly connected with the pool wall at the feeding inlet of the pool furnace 7 through bolts. The fireproof ring 4 functions to prevent the flame in the pool furnace 7 from spouting out from the gap between the discharge port of the feeding machine and the feeding inlet of the pool furnace 7, and to avoid high-temperature corrosion of the spouted flame on the spiral shaft 3 and the cooling sleeve 1 of the feeding machine outside the pool furnace 7.

[0028] Further, the cooling sleeve 1 outside the spiral shaft 3 is a water-cooled protective sleeve with an internal cavity, cold water is injected into the water-cooled protective sleeve through a water pipe, and the water-cooled protective sleeve and the spiral shaft 3 inside the water-cooled protective sleeve can be cooled and protected.

[0029] The anti-corrosion device of the base plate glass production feeding system further comprises a compressed air pipe 2, a base material channel is formed between the spiral shaft 3 and the cooling sleeve 1, the compressed air pipe 2 penetrates through the cooling sleeve 1 and enters the outlet of the base material channel, when the spiral shaft 3 pushes the base material to the discharge port of the cooling sleeve 1, the base material close to the feeding inlet of the pool furnace 7 slides into the inside of the pool furnace 7, an upper cavity is formed at the position, the compressed air pipe 2 penetrates through the cooling sleeve 1 and is communicated with the upper cavity, an air compressor is installed at the end of the compressed air pipe 2 away from the feeding inlet of the pool furnace 7, the air compressor pressurizes the cooling gas, the cooling gas is delivered to the upper cavity of the feeding machine through the compressed air pipe 2, a positive pressure is formed at the position, the flame or hot air in the pool furnace 7 is prevented from spouting out from the gap between the front end of the cooling sleeve 1 and the powder pile in the inside of the pool furnace 7, and thus the corrosion of the feeding inlet brick, the fireproof ring 4, the spiral shaft 3 and the cooling sleeve 1 is reduced.

[0030] Further, a valve 5 and a pressure gauge 6 are arranged on the compressed air pipe 2, the pressure inside the compressed air pipe 2 is displayed through the pressure gauge 6, the pressure can be adjusted to an appropriate pressure according to the working condition, and the valve 5 is used for controlling the opening and closing of the compressed air pipe 2.

[0031] When the feeding port is cleaned, the opening of the compressed air pipe 2 is controlled by the valve 5, the low-temperature high-pressure gas sprayed by the compressed air pipe 2 forms a certain positive pressure at the discharge port of the cooling sleeve 1 of the feeding machine, so that the powder accumulation caused by cleaning is reduced, the problems of the flame and high-temperature gas of the pool furnace 7 spraying outward are avoided, the erosion of the flame of the pool furnace 7 to the feeding machine shaft, the fire ring 4 and the feeding port brick is prevented, the temperature and air pressure in the pool furnace 7 are kept stable, the fluctuation of the pool furnace 7 caused by the cleaning operation is reduced, and the stability of the processing technology is ensured.

[0032] When the feeding port forms powder accumulation, the high-temperature erosion of the high-temperature gas of the pool furnace 7 to the cooling sleeve 1 of the feeding machine and the feeding port brick is weakened, the compressed air pipe 2 is closed by the valve 5, and the energy consumption is reduced.

[0033] Example two:

[0034] Please refer to Figure 1 , and further get that the cooling sleeve 1 outside the spiral shaft 3 is arranged as an air-cooled protective sleeve with an internal cavity, cold air is injected into the air-cooled protective sleeve through the air pipe, the air-cooled protective sleeve itself and the spiral shaft 3 inside the air-cooled protective sleeve can be cooled and protected, and the erosion of high temperature to the cooling sleeve 1 and the spiral shaft 3 is reduced.

[0035] Although the specific embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these specific embodiments without departing from the principles and spirits, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An erosion protection device for a raw material feeding system of a substrate glass production, comprising a raw material feeding system for feeding a tank furnace (7) and an erosion protection structure for protecting the raw material feeding system from high temperature, the raw material feeding system comprising a feeder with a screw shaft (3), characterized in that: The anti-erosion structure comprises a cooling sleeve (1) and a compressed air pipe (2), the cooling sleeve (1) is sleeved outside a screw shaft (3) of the feeding machine, one end of the screw shaft (3) and the cooling sleeve (1) outside the screw shaft (3) is fixedly communicated with a pool furnace (7), and the compressed air pipe (2) enters the inside of the pool furnace (7) along the direction of the cooling sleeve (1).

2. The erosion resistant apparatus for a raw material feeding system of a substrate glass production according to claim 1, characterized in that: One end of the cooling sleeve (1) of the feeding machine close to the pool furnace (7) is fixedly connected with a fire-retardant ring (4), and the fire-retardant ring (4) is fixedly connected with the outer wall of the cooling sleeve (1).

3. The erosion resistant apparatus for a raw material feeding system of a substrate glass production according to claim 1, characterized in that: The cooling sleeve (1) outside the screw shaft (3) is a water-cooling protective sleeve with an internal cavity.

4. The erosion resistant apparatus for a raw material feeding system of a substrate glass production according to claim 1, characterized in that: A valve (5) for on-off control and a pressure gauge (6) for monitoring the internal pressure of the compressed air pipe (2) are arranged on the compressed air pipe (2).

5. The erosion resistant apparatus for use in a raw material delivery system for the production of a glass substrate according to claim 4, wherein: The cooling sleeve (1) outside the screw shaft (3) is an air-cooling protective sleeve with an internal cavity, and cold air is injected into the inside of the air-cooling protective sleeve through an air pipe.

6. The erosion resistant apparatus for a raw material feeding system of a substrate glass production according to claim 5, characterized in that: A material bin for storing base material, an intermediate bin and a first screw conveyor are arranged outside the feeding machine, the outlet of the material bin is communicated with the feeding inlet of the first screw conveyor, the discharging outlet of the first screw conveyor is communicated with the inlet of the intermediate bin, and the discharging outlet of the intermediate bin is communicated with the feeding inlet of the feeding machine.

7. The erosion resistant apparatus for a raw material feeding system of a substrate glass production according to claim 6, characterized in that: A first screw conveyor shutter is installed between the bottom of the intermediate bin and the feeding inlet of the feeding machine.

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