129results about "Forehearths" patented technology

According to one aspect of the disclosure, a bulk material handling method includes receiving bulk material on a first level of a system at receiving stations equipped with dust control filtration equipment, pneumatically conveying the bulk material up to a third level into bulk material storage hoppers, storing the bulk material, dispensing the stored bulk material to a bulk material transporter on the first level, including dosing the stored bulk material to an interior of a bulk material dosing hopper to create a bulk material dose, docking the dosing hopper with the transporter via a docking apparatus, and releasing the dose into the interior of the transporter, through a reduced pressure region in an internal volume of the docking apparatus. Other disclosed aspects include a related system, subsystems, and apparatuses.

[Problem] To provide a gob feeding device capable of predicting gob quality defects. [Solution] A gob feeding device 1 comprises: a cooling device 26 that sprays a coolant at an upper funnel 22; a gob timing sensor 34A that detects a gob timing, which is the timing at which a gob G falls from each of a plurality of passage members 25 into a corresponding blank mold 5, and a gob length, which is the vertical length of the gob at said timing; a glass temperature sensor 36 that detects the temperature of molten glass in a forehearth 2; and a gob monitoring device 37 that monitors the state of gobs falling from the plurality of passage members into corresponding blank molds. The gob monitoring device infers the state of a gob on the basis of at least the gob timing, the gob length, and the temperature of the molten glass in the forehearth, and reports the state of the gob.

This invention provides a glass melt conveying device and its temperature control method, comprising an inner wall, an outer wall, and a cavity disposed between the inner and outer walls; both the inner and outer walls are made of refractory materials; the surface of the inner wall is provided with an anti-erosion layer; multiple inner wall temperature detectors are uniformly arranged in the inner wall; the outer sides of the two walls of the cavity are respectively attached to the inner and outer walls; multiple supports are uniformly arranged in the cavity; the two ends of the supports are respectively fixed to the inner sides of the two walls of the cavity. This invention can achieve a heat preservation effect on the bottom and sides of the glass melt through the anti-erosion layer, preventing related defects caused by temperature differences. At the same time, using non-precious metals such as molybdenum as the anti-erosion layer to prevent the glass melt from eroding greatly reduces construction costs; for platinum tube-type glass melt conveying devices, molybdenum electrode heating can be used instead of platinum heating in the high-temperature section, eliminating the situation where the entire channel is electrified, thereby improving production safety.

We provide a gob supply device that can predict gob quality defects. [Solution] The gob supply device 1 includes a cooling device 26 that sprays coolant onto the upper funnel 22, a gob timing sensor 34A that detects the gob timing, which is the timing of gobs G falling from each of the multiple passage members 25 onto the corresponding rough mold 5, and the gob length, which is the vertical length of the gob at that time, a glass temperature sensor 36 that detects the temperature of the molten glass in the fore hearth 2, and a gob monitoring device 37 that monitors the state of the gobs falling from the multiple passage members onto the corresponding rough mold. The gob monitoring device estimates the state of the gobs based on at least the gob timing, gob length, and the temperature of the molten glass in the fore hearth, and reports the state of the gobs.

A glass manufacturing apparatus includes a conduit with an electrical flange attached to the conduit, the electrical flange having a first ring formed from a first metal and a second ring inside the first ring, attached to the conduit, and formed from a second metal different from the first metal. The second ring includes a first portion, a second portion, and a third portion joining the first portion to the second portion and configured such that a plane of the first portion is spaced apart from a plane of the second portion, and wherein an angle of a linear part of the third portion forms an angle with the plane of the first portion in a range from about 115 degrees to about 125 degrees. A method of joining subsystems of a glass manufacturing apparatus is also disclosed.

The application discloses a cooling protection system for the connection between a kiln and a channel, comprising a kiln body and a platinum conduit, a flow liquid hole is formed on the pool wall brick at the bottom of the kiln body; the front end of the platinum conduit penetrates into the kiln body from the flow liquid hole, a front baffle and a rear baffle are sleeved on the platinum conduit, and the front baffle and the rear baffle are arranged in close contact with the pool wall brick; a cooling structure is arranged on the part of the platinum conduit outside the kiln body, and the side of the cooling structure close to the kiln body is in close contact with the rear baffle; the platinum conduit is provided with a filling layer, and the filling layer is arranged at least at the positions corresponding to the pool wall brick and the cooling structure of the kiln body of the platinum conduit. The front and rear platinum baffles are combined with the cooling brick structure, the pool wall brick is prevented from being rapidly eroded and damaged by glass liquid, the service life of the pool wall brick is prolonged, the frequency of kiln shutdown and repair is reduced, and the glass quality is improved.

The embodiments of the present application relate to the technical field of glass production. Disclosed are a discharging mechanism and a glass-ceramic production device. The discharging mechanism comprises a discharging hopper, a first heating member and a second heating member. The discharging hopper comprises a receiving section, a buffer section, a homogenizing section and a discharging nozzle, which are arranged in sequence in a discharging direction, wherein the material receiving section has a greater volume than the homogenizing section, the buffer section is configured to be in a neck shape, a larger end of the buffer section is connected to the receiving section, a smaller end of the buffer section is connected to the homogenizing section, the homogenizing section is connected to the discharging nozzle, the first heating member is connected to the receiving section, the second heating member is connected to the homogenizing section, and the first heating member has a lower heating power than the second heating member. Compared with the prior art, the discharging mechanism provided in the embodiments of the present application can perform buffering and segmented precise temperature control on a glass melt, thereby effectively improving the flow uniformity and temperature distribution uniformity of the glass melt, and ensuring the product quality.

The application discloses a glass liquid homogenizing and stable feeding system and method for substrate glass, wherein an outlet pipe of a glass liquid feeding device sends the glass liquid into a second feeding pipe through a first feeding pipe to form a certain liquid level height; inner and outer heaters are divided into several groups of independent heaters to heat the glass liquid, so that the glass liquid extraction amount is conveniently controlled; a parameter acquisition unit acquires the liquid level height and temperature of the glass liquid in the second feeding pipe; a parameter processing unit calculates the difference between the theoretical and target extraction amounts of the glass liquid; and a feedback adjusting unit conveniently increases or decreases the current value of the inner and outer heating units in each group of heaters. The application guarantees the uniformity of the glass liquid temperature during the extraction amount adjustment process, solves the substrate glass defect problem caused by the non-uniformity of the formed glass liquid temperature, realizes the feeding adjustment of each group of heaters and the automatic control of the glass substrate extraction amount, and further realizes the rapid response and accurate control of the extraction amount adjustment.

The utility model provides a flashboard sealing device based on a float glass liquid flow channel, which relates to the technical field of float glass production and comprises a liquid flow channel, a cover plate is mounted above the liquid flow channel, a sealing cover and a group of sealing structures are mounted on the outer side of the cover plate, a rotating hole and two sliding holes are formed in the middle of the sealing cover, and the rotating hole is communicated with the sliding holes. A sliding hole is formed in the middle of the cover plate, and a gate plate is inserted into the sliding hole in a penetrating mode. The flashboard is sealed by a multi-sealing device consisting of the first sealing strip, the second sealing strip and the sealing cover which are uniquely designed, so that the leakage of glass liquid and the entering of outside air into the liquid flowing channel are effectively prevented, and a triangular blocking strip of the first sealing strip is tightly meshed with a triangular sealing groove in a sliding groove of the liquid flowing channel; and the second sealing strip is tightly attached to the gap of the flashboard under the action of the supporting spring, so that a reliable sealing defense line is formed.

A glass transfer system for heating molten glass is provided including an electrical power source, a hollow glass transfer tube allowing molten glass to flow therein, and a flange assembly. The flange assembly comprises an inner structure defining a central opening, and the inner structure receives the glass transfer tube within the central opening so the inner structure is in contact with the glass transfer tube. The flange assembly includes an outer structure primarily comprised of material other than platinum, the outer structure is directly attached to the inner structure and is connectable to the electrical power source so that electrical current is conducted through to the glass transfer tube to heat it, thereby heating the molten glass flowing therein. A maximum electrical current density within the inner structure is no more than about 1.9 times the minimum electrical current density within the inner structure when electrical current is conducted.

This invention discloses a channel structure and manufacturing method for extending the lifespan of substrate glass, belonging to the field of substrate glass manufacturing technology. By providing a filling layer between the platinum channel body and the innermost refractory material, and by providing filling layers between adjacent refractory material layers and pre-reserving expansion gaps between adjacent refractory components, the uniformity and density of the gap filling between the platinum channel body and the refractory material are ensured. This ensures the consistency of high-temperature sintering of the filling powder, effectively reduces the interface gap between the platinum body and the filling powder, inhibits platinum oxidation and volatilization, and contributes to extending the service life of the platinum channel body. Furthermore, by pre-setting compatible filling layers between different layers of refractory material, the deformation stress caused by the difference in thermal expansion coefficients of different layers of refractory material during heating can be buffered, ensuring the structural integrity of the refractory material covering system surrounding the platinum channel body, avoiding cracking problems caused by asynchronous thermal expansion of the refractory materials, and further extending the overall service life of the channel.

The utility model relates to a bottle and can material channel system which comprises a material channel and a separating structure which divides the material channel into a plurality of areas, each area is provided with a temperature monitoring device used for monitoring temperature, and the areas comprise an upper flame area and a bottom material conveying area. According to the utility model, the main material channel and the branch material channels are divided into a plurality of independent areas, and the thermocouple is arranged in each area for accurate temperature measurement and independent temperature control, so that the defects of glass stripes, bubbles, knots and the like caused by abnormal temperature of the material channels can be effectively avoided; the molten glass is enabled to enter a product machine to be molded in a stable and appropriate temperature environment, so that the quality and the yield of glass bottle tank products are greatly improved, and the competitiveness of the products in the market is enhanced.

A glass manufacturing apparatus includes a stirring chamber disposed on a base. The stirring chamber includes a first inlet port attached to a first connector tube; a chamber conduit; and an elbow conduit. The apparatus further includes a second connector tube connected to the elbow conduit for delivering molten glass therefrom. At least a portion of the second connector tube extends at least partially upward in a vertical direction. The apparatus also includes a delivery container connected to the second connector tube. One of the base or the delivery container is attached to a reference point fixed in the vertical direction. The other of the base or the delivery container is movable in response to thermal expansion of the second connector tube, independent of thermal expansion of the other of the base or the delivery container.

The application discloses a sealing structure and method for the butt joint area of the outlet of a platinum channel cooling pipe, and the butt joint is realized through the butt joint flange formed by the outer turning of the butt joint port between the cooling section and the latter half section of the cooling pipe, the injection filling area is formed between the main section support bricks outside the cooling pipe, the butt joint flange of the butt joint area and the butt joint area support bricks outside form a butt joint filling area, the injection hole is opened on the butt joint area support brick, the cavity is opened inside, the injection hole is communicated with the cavity, and the partition filling sealing of different positions is realized, the structure sets the butt joint area between the cooling section and the latter half section of the cooling pipe, the butt joint flanges at both ends are attached and connected, the butt joint area support bricks are installed outside the butt joint flanges, the butt joint sealing area is filled, and the sealing of the outlet of the cooling pipe is realized; through the direct butt joint mode of the flange, the local fine filling is carried out in combination with the local independent refractory structure after the butt joint is carried out in the full spraying mode, and the sealing and the later glass liquid erosion resistance of the area are improved.

The application discloses a device and a method for glass leak forming. It belongs to the technical field of optical glass manufacturing. It mainly solves the problem of forming stripes in the forming of optical glass with small viscosity, easy crystallization, easy volatilization and long low-temperature material property. The main features are as follows: the device is assembled by wrapping ceramic fiber cotton outside a channel through which glass liquid flows, and the channel is formed by welding a flow-in pipe, a flow guide pipe, a flow guide inner pipe, a cooling ring, a flow-out pipe, multiple electrode pieces and multiple thermocouples. The upper end of the flow-in pipe is welded and connected with the bottom of a working pot of a kiln, and the lower end is welded and connected with one side of the upper part of the flow-out pipe. The flow guide pipe is coaxially inserted into the flow-out pipe. The bottom of the flow guide pipe is lower than the flow-out pipe, and the height difference can be adjusted. The flow-out pipe, the flow guide pipe and the flow-in pipe are welded with temperature control thermocouples and electrode pieces. The application is suitable for the drawing forming of optical glass with small viscosity, easy crystallization, easy volatilization and long low-temperature material property.

The application discloses a device and method for preventing collapse of a platinum channel cooling flat tube in a heating process, and belongs to the technical field of substrate glass manufacturing. The device comprises a pulling structure, the outside of the cooling flat tube is wrapped with a heater module, the heater module is provided with a plurality of heater modules, a butt joint gap is arranged between every two butt-jointed heater modules, the pulling structure is arranged on the outer surface of the cooling flat tube, the pulling structure comprises a pulling lug, the pulling lug is coincident with the position of the butt joint gap, the protruding end of the pulling lug protrudes out of the butt joint gap, the protruding end is connected with the end of the heater module, and the height of the pulling lug is equal to the distance between the cooling flat tube and the heater module. The application mainly improves the reliability of the platinum channel cooling flat tube, the special pulling structure is designed on the upper surface of the cooling flat tube, a matching mounting method is combined, the stability of the cross-section structure of the cooling flat tube in the heating process can be realized, and the deformation and collapse of the cooling flat tube in the heating process are prevented.

The invention relates to a glass kiln mechanism and a glass tube production device.The glass kiln mechanism comprises a kiln assembly, the kiln assembly comprises a kiln body, a liquid flowing channel and a working part, the first end of the liquid flowing channel communicates with the kiln body, and the second end of the liquid flowing channel communicates with the side, close to the kiln body, of the working part; the kiln heating assembly comprises a kiln flame heating structure and a kiln electrode heating structure; the material channel assembly comprises a first material channel structure, a second material channel structure, a third material channel structure and a fourth material channel structure, the first material channel structure and the second material channel structure are located on the two sides of the working part respectively, and the third material channel structure and the fourth material channel structure are both located on the side, away from the kiln body, of the working part. According to the technical scheme, the problem that in the prior art, when four discharging structures are arranged on one kiln, the quality of molten glass is not uniform is effectively solved.

The application provides a wet membrane evaporation cooling system for humidity control of a platinum channel kiln, which comprises a wet membrane treatment module, a water supply regulation module, a heat energy recovery module, a sensing detection module, a control module and an airflow conveying module; the sensing detection module is in communication connection with the control module; the control module is in communication connection with the wet membrane treatment module, the water supply regulation module, the heat energy recovery module and the airflow conveying module respectively; and the water supply regulation module is in pipeline connection with the wet membrane treatment module. The application replaces traditional decentralized control by establishing the core logic of intelligent decision and module linkage of the sensing detection and control module, realizes full-process automation of humidity regulation and control, and guarantees response timeliness from the structure; the integrated design of the wet membrane treatment module, the heat energy recovery module and the water supply regulation module solves the functional limitation of a single module, realizes the integration of humidification, energy saving and water quality protection, and reduces system energy consumption and maintenance cost.

The application discloses an energy-saving glass melt primary forming material feeding device and relates to the technical field of glass melt forming. The device comprises a processing table, a fixing frame, a feeder, a flow channel, a linear motor, a fixed plate, a mold channel, a punch mechanism, a chute, a sliding plate and a sealing plate.

To reduce the temperature of a melting material in a conduit surrounded by a heating enclosure.SOLUTION: A method for manufacturing glass comprises: heating a conduit 139 by a heating elements 337 and 338...in a chamber 339 when heating the conduit of a heating enclosure 327 in the chamber; and removing a part of the heating enclosure 327 surrounding the conduit 139 when reducing the temperature of the conduit 139 to cool a melting material flowing through the conduit 139 in the chamber.SELECTED DRAWING: Figure 6

A glass manufacturing apparatus is disclosed comprising a vessel configured to deliver molten glass; a conduit extending from the vessel, the conduit including a distal end having a concave heating member connected thereto; a first electrical flange connected to the conduit; and a second electrical flange connected to the concave heating member. A method of preventing devitrification of a molten glass forming material is also described.

A method for producing a glass product includes flowing molten glass through a first vessel to a downstream second vessel, the molten glass flowing through a conduit connecting the first vessel and the second vessel, the first vessel and the conduit defining a continuous free space above a free surface of the molten glass extending at least a portion of the conduit. The method further includes venting a first atmosphere contained in the free space to a second atmosphere outside the first vessel through a vent pipe connected to the conduit adjacent an upper portion of the conduit and above the free surface, the vent pipe extending downwardly from the conduit along a longitudinal axis at an angle α with respect to the horizontal to a distal end of the vent pipe providing fluid communication between the first atmosphere and the second atmosphere.

A glass manufacturing apparatus includes a melting vessel containing an internal chamber for receiving molten glass. A first electrode, a second electrode, a third electrode, and a fourth electrode extend within the internal chamber. A first power source is electrically connected to the first and second electrodes and delivers a first current. A second power source is electrically connected to the second and third electrodes and delivers a second current. The second current is out of phase with the first current. A third power source is electrically connected to the third and fourth electrodes and delivers a third current. The third current is out of phase with the second current. A method for manufacturing glass is also provided.

The present disclosure relates to a riser for connecting a glass melting vessel to a fining vessel, and a method for fining a glass melt. Clarification efficiency is improved by using two or more electrical heating circuits in the riser to heat the glass melt to a desired temperature and ensure that a uniform temperature profile is ensured across the width of the clarification vessel.

According to one aspect of the disclosure, a bulk material handling method includes receiving bulk material on a first level of a system at receiving stations equipped with dust control filtration equipment, pneumatically conveying the bulk material up to a third level into bulk material storage hoppers, storing the bulk material, dispensing the stored bulk material to a bulk material transporter on the first level, including dosing the stored bulk material to an interior of a bulk material dosing hopper to create a bulk material dose, docking the dosing hopper with the transporter via a docking apparatus, and releasing the dose into the interior of the transporter, through a reduced pressure region in an internal volume of the docking apparatus. Other disclosed aspects include a related system, subsystems, and apparatuses.

The present invention belongs to the technical field of the prevention and control of defects in substrate glass, and discloses a filling structure and method for reducing acicular defects in substrate glass. For the filling structure provided by the present invention, the thermal insulation and heating characteristics of a filling material are comprehensively considered, and therefore environmental conditions for a crystallization reaction are fundamentally optimized. By constructing a multi-layer thermal-insulation filling structure, the phenomenon of crystallization is effectively suppressed, thereby greatly reducing the generation of acicular defects. By means of the scientific and rational distribution of a filling material layer, a thermal expansion difference between a platinum body and a surrounding refractory material is balanced, the risk of structural damage caused by excessive thermal stress is reduced, and the stability and safety of the production process are further ensured. Moreover, by means of the introduction of a heating element, fine control over the temperature in a platinum tube region is achieved; therefore, a local temperature difference can be effectively reduced, and the phenomenon of crystallization can be further suppressed.

The present invention discloses a substrate glass extraction amount control and glass liquid homogenization supply device and method. The device includes a supply device and an auxiliary heating device. The supply device is composed of a supply inner pipe and a supply outer pipe, and the supply inner pipe is arranged inside the supply outer pipe. The supply outer pipe is composed of a supply upper outer pipe, a supply middle outer pipe, a supply lower outer pipe, and a variable-diameter circular pipe. The supply upper outer pipe is attached to the upper end of the supply middle outer pipe, and the supply lower outer pipe is attached to the lower end. The supply upper outer pipe, the supply middle outer pipe, and the supply lower outer pipe are connected by the variable-diameter circular pipe. Further, the auxiliary heating device is composed of an inner heater and an outer heater. In the present invention, by differentially adjusting the currents of the inner heater and the outer heater, the inside and outside of the glass liquid are heated simultaneously, and by controlling the temperature of the glass liquid to rise or fall simultaneously inside and outside, the temperature uniformity of the glass liquid after heating or cooling is ensured, the adjustment reaction time of the extraction amount is shortened, and precise control of the extraction amount is realized.

The present invention discloses a high-efficiency supply device and method in the thermal state of the clarification part flange base of a platinum channel. The device includes a supply structure. A refractory brick channel is installed outside the clarification part of the platinum channel. The clarification part of the platinum channel includes a platinum body and a flange. A cavity region is provided between the flange and the refractory brick channel to enable normal expansion during the temperature rise process of the flange. A supply observation port is provided in the refractory brick channel corresponding to the cavity region. The supply end of the flange penetrates the supply observation port, the supply structure penetrates the supply observation port, the output end of the supply structure is arranged in the cavity region, the input end is installed outside the refractory brick channel, and a certain distance is provided between the output end and the platinum body. By using the supply structure according to the present invention, the density of the thermal state supply of the flange base can be effectively improved, the working time can be shortened, time and economic costs can be saved, and it has very high use value.

The application discloses a kind of installation and adjustment method of platinum channel stirring rod, belong to substrate glass or cover glass channel equipment technical field.The installation and adjustment method of platinum channel stirring rod disclosed in the application not only can quickly, firmly install stirring rod on stirring mechanism, but also can ensure that the gap between platinum stirring rod and the inner wall of stirring tank after installation and adjustment meets the requirements, thereby effectively avoiding the scratching phenomenon between stirring rod blade and the inner wall of stirring tank, eliminating the defects such as platinum particles and rhodium wire in the product caused thereby, improving the pass rate of product, also avoiding the damage phenomenon of platinum stirring rod and stirring rod and the glass liquid leakage phenomenon in the stirring tank caused by scratching, effectively prolonging the service life of platinum stirring rod, stirring tank and the refractory material outside stirring tank, greatly reducing production cost.

A glass manufacturing apparatus includes a conduit in fluid communication with a delivery chamber and an inlet of a forming device. The conduit includes a closed sidewall surrounding a channel extending in a flow direction of the conduit. The glass manufacturing apparatus includes an outer shell surrounding the conduit and extending along a length of the conduit. The outer shell includes a refractory material in contact with the conduit such that an inner surface of the outer shell substantially matches a shape of an outer surface of the sidewall. Methods of manufacturing a glass ribbon are provided.