CN113816589B - Method for replacing feed inlet bricks without stopping machine - Google Patents
Method for replacing feed inlet bricks without stopping machine Download PDFInfo
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- CN113816589B CN113816589B CN202110973826.6A CN202110973826A CN113816589B CN 113816589 B CN113816589 B CN 113816589B CN 202110973826 A CN202110973826 A CN 202110973826A CN 113816589 B CN113816589 B CN 113816589B
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- brick
- charging hole
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- hole brick
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
Abstract
The invention discloses a method for replacing a charging hole brick without stopping, which comprises the steps of selecting a temperature measuring position aiming at an old charging hole brick, measuring the temperature of the old charging hole brick at the temperature measuring position and recording the temperature; adjusting the pressure in the kiln to be micro-positive pressure; hoisting the old charging hole brick by using charging hole brick hoisting equipment, moving the old charging hole brick to a set position, and simultaneously placing an isolated flame preheating plate at the position of the original brick hole to plug the charging hole; hoisting a new charging hole brick by using charging hole brick hoisting equipment, abutting the new charging hole brick against a flame isolating preheating plate, fixing the new charging hole brick, and preheating the new charging hole brick; measuring the temperature of the new charging hole brick, preheating the new charging hole brick for a set time after the temperature of the new charging hole brick is raised to the temperature of the old brick, removing the flame isolating preheating plate, and hermetically installing the new charging hole brick on the charging hole; wherein, the temperature measurement position of the new charging hole brick corresponds to the temperature measurement position of the old charging hole brick. The charging hole bricks can be replaced without stopping the machine, and the charging machines with different design parameters can be replaced.
Description
Technical Field
The invention relates to the technical field of glass kilns, in particular to a method for replacing a charging hole brick without stopping a machine.
Background
In the glass manufacturing industry, a glass kiln is used as main production equipment for providing molten glass with good melting quality, stable temperature and uniform components for other working procedures. The glass kiln generally adopts directly to set up the trompil on the terminal wall as the charge door to set up the charge door brick in the charge door, regard the screw feeder as feed arrangement seal installation on the feeder mouth on the charge door brick, make raw materials for production add with the reinforced form of spiral, improved the leakproofness of glass kiln, reduced flying upward and thermal convection of powder, thereby practiced thrift the energy.
At present, in the production field of ultrathin flexible glass kilns, the design parameters of various devices are determined at the beginning of the design of a kiln used for melting glass, and the design of a charging hole brick determines the parameters of a charging machine device. In the actual production process, the material mountain is one of five major control parameters of the kiln, the influence on the stable production of the kiln process is great, the formation of the material mountain is a very complicated process, the design parameters of the feeding machine have great influence on the formation of the material mountain, different material prescriptions have different requirements on the design parameters of the feeding machine, and different production forms have different requirements on the design parameters of the feeding machine. However, after the glass kiln is built, the positions of the bricks at each part of the kiln are fixed, and the corresponding design parameters of the charging machine are fixed, so that the requirements of different material sizes and different production specifications on the charging machine in the production of the ultrathin flexible glass kiln cannot be met.
Therefore, how to satisfy the requirements of different recipes and different production specifications on the charging machine becomes a technical problem to be solved urgently
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for replacing a charging hole brick without stopping, the method for replacing the charging hole brick without stopping can replace the charging hole brick without stopping, can replace charging machines with different design parameters, meets the requirements of different material prescriptions and different production specifications on the charging machines in the production of ultrathin flexible glass kilns, and realizes the rapid conversion of production.
In order to solve the technical problem, the invention provides a method for replacing a charging hole brick without stopping, which comprises the following steps: selecting a temperature measuring position for an old charging hole brick, measuring the temperature of the old charging hole brick at the temperature measuring position and recording the temperature; adjusting the pressure in the kiln to be micro-positive pressure; hoisting the old charging hole brick by using charging hole brick hoisting equipment, moving the old charging hole brick to a set position, and simultaneously placing an isolated flame preheating plate at the position of an original brick hole to plug the charging hole; hoisting a new charging hole brick by using the charging hole brick hoisting equipment, abutting the new charging hole brick against the flame isolating preheating plate, fixing the new charging hole brick, and preheating the new charging hole brick; measuring the temperature of the new charging hole brick, preheating the new charging hole brick for a set time after the temperature of the new charging hole brick is raised to the temperature of the old brick, removing the flame isolating preheating plate, and hermetically installing the new charging hole brick on the charging hole; and the temperature measurement position of the new charging hole brick corresponds to the temperature measurement position of the old charging hole brick.
Optionally, the old charging port brick or the new charging port brick is installed on a fixed steel frame.
Optionally, when the charging opening brick hoisting equipment is used for hoisting the new charging opening brick, the fixed guide rod is connected with the new fixed steel frame, so that the fixed guide rod moves along with the new fixed steel frame, and the new charging opening brick can be stably moved.
Optionally, the number of the fixed guide rods is two, and the front ends of the fixed guide rods are clamped with the fixed steel frame.
Optionally, after the new charging hole brick is hermetically installed on the charging hole, the guide rail which is not removed by the old charging machine is used as a reference point, and the new charging hole brick is adjusted to enable the charging machine port of the new charging hole brick to correspond to the central point of the guide rail.
Optionally, the position of the guide rail is adjusted and set according to the position of the old charging hole brick before the old charging hole brick is removed.
Optionally, the micro-positive pressure is 10 to 20Pa.
Optionally, the temperature is measured in the range of 5-10cm from the edge of the old feed block.
Optionally, after the temperature of the new charging hole brick is raised to the temperature of the old brick, the new charging hole brick is continuously preheated for 5-10 days, and then the flame-isolating preheating plate is removed.
Optionally, the plate thickness of the flame-isolating preheating plate is 10-20 mm.
Through the technical scheme, the invention has the following beneficial effects:
the method comprises the steps of hoisting an old charging hole brick and a new charging hole brick by using charging hole brick hoisting equipment, and replacing the old charging hole brick with the new charging hole brick; before removing old charge door brick, adjust the pressure in the kiln earlier for the pressure-fired pressure a little, avoid the high temperature fire in the kiln to spout out, and, after removing old charge door brick, preheat the board shutoff charge door with isolated flame, further avoid the high temperature fire in the kiln to spout out, and simultaneously, support the new charge door brick on isolated flame preheats the board, utilize heat in the kiln to preheat new charge door brick, make new charge door brick reach the temperature before old charge door brick removes, avoid the temperature abrupt change, make new charge door brick install at the charge door intact. Because new charge door brick corresponds the feeder of different design parameters with old charge door brick to the realization is not under the circumstances of shutting down changing the model of feeder, satisfies production and the stable demand of technology, has promoted the flexibility of production.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a replacement feed block according to an embodiment of the present invention;
FIG. 2 is a schematic view of a positioned feed block according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a charging hole brick hoisting device according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a stationary guide bar according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a fixed steel frame according to an embodiment of the present invention;
FIG. 6 is a block flow diagram of a method for replacing a charge door tile without shutting down the machine, in accordance with an embodiment of the present invention.
Description of the reference numerals
1 old charging hole brick 2 temperature measuring position
3 flame isolating preheating plate 4 fixing steel frame
5 fixing guide rod 6 guide rail
71 moving bracket 72 lifting rod
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed" or "connected" are to be construed broadly, e.g., the term "connected" may be a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be connected through inter-element communication or interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise specified, terms of orientation such as "front and bottom" are used as defined with respect to the front and bottom of the corresponding component in actual use, and "left and right" are defined with respect to the left and right of the corresponding component in actual use. The use of directional terms is based on the orientation or positional relationship shown in the drawings and is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting; the directional terminology of the present invention should be understood in conjunction with the actual installation state.
As shown in fig. 1 to 5, the method for replacing a feed opening brick without stopping the machine according to the basic embodiment of the present invention comprises the steps of:
selecting a temperature measuring position 2 for an old charging hole brick 1, measuring the temperature of the old charging hole brick 1 at the temperature measuring position 2 and recording the temperature;
adjusting the pressure in the kiln to be micro-positive pressure;
hoisting the old charging hole brick by using charging hole brick hoisting equipment, moving the old charging hole brick to a set position, and simultaneously placing the flame isolating preheating plate 3 at the original brick hole to plug the charging hole;
hoisting a new charging hole brick by using the charging hole brick hoisting equipment, abutting the new charging hole brick against the flame-isolated preheating plate 3, fixing the new charging hole brick, and preheating the new charging hole brick;
measuring the temperature of the new charging hole brick, preheating the new charging hole brick for a set time after the temperature of the new charging hole brick is raised to the temperature of the old brick, removing the isolated flame preheating plate 3, and hermetically installing the new charging hole brick in the charging hole; and the temperature measurement position of the new charging hole brick corresponds to the temperature measurement position of the old charging hole brick.
According to the invention, the charging hole brick hoisting equipment is used, the old charging hole brick is replaced by the new charging hole brick, and the new charging hole brick and the old charging hole brick respectively correspond to the charging machines with different design parameters, so that the model of the charging machine is replaced under the condition of no shutdown in continuous production, the requirements of production and process stability are met, and the production flexibility is improved.
Generally, a charging hole is formed in the rear wall of the kiln, and a charging hole brick is installed on the charging hole. Specifically, referring to fig. 5, a fixed steel frame 4 is manufactured, an old charging hole brick or a new charging hole brick is embedded in an inner frame of the fixed steel frame 4, and when the charging hole brick is replaced, the fixed steel frame 4 is hoisted by using charging hole brick hoisting equipment, so that the old charging hole brick or the new charging hole brick is moved. Conventionally, a hoisting ring is installed on the fixed steel frame 4, and correspondingly, referring to fig. 3, the charging opening brick hoisting equipment mainly comprises a moving support 71 and a hoisting rod 72, the hoisting rod 72 is erected on the moving support 71, a hook is arranged at the front end of the hoisting rod 72, so that the front end of the hoisting rod 72 is hooked on the hoisting ring on the fixed steel frame 4, and a pulley is arranged at the bottom of the moving support 71, so as to move along with the moving support 71, so as to drive the fixed steel frame 4 to move, and further move an old charging opening brick or a new charging opening brick.
And, be provided with fixed knot on the back wall of kiln constructs, fixed knot constructs and is used for fixing fixed steel frame 4 on the back wall, simultaneously, and the design has the depression bar, and the depression bar is installed on fixed steel frame 4 to support with old charge door brick or new charge door brick and lean on, fasten depression bar and fixed steel frame 4 on fixed knot constructs jointly through the bolt.
In order to ensure the stability of the movement of the new charging hole brick, referring to fig. 4, a fixed guide rod 5 is manufactured, and the fixed guide rod 5 is used to be connected with a fixed steel frame 4. Specifically, a fastener may be disposed at the front end of the fixing guide rod 5, and in the embodiment shown in fig. 4, the front end of the fixing guide rod 5 is a saw-toothed structure and can be engaged with the edge of the fixing steel frame 4. Usually, select two fixed guide bars 5, respectively with the edge joint of fixed steelframe 4 left and right sides, at the in-process that removes new charge door brick, keep two relative positions between the fixed guide bar 5, can remote fixed new charge door brick, remove the in-process at new charge door brick and avoid controlling rocking, improve the security that the in-process was changed to the charge door brick. Furthermore, a connecting rod, for example, a connecting rod with a threaded structure at both ends, may be disposed between the two fixed guide rods 5, so that both ends of the connecting rod are respectively in threaded connection with one fixed guide rod 5, and more than two connecting rods may be used, thereby ensuring the relative position between the two fixed guide rods 5 and enabling the fixed guide rods 5 to have better firmness; alternatively, the connecting rod may be pin-connected to the fixed guide rod 5.
In order to prevent the flame in the kiln from being ejected, the pressure in the kiln can be adjusted to be micro-positive pressure before the old charging hole brick is removed, and the positive pressure is usually selected to be 10-20 Pa.
Further, after demolising old charge door brick, need preheat the board shutoff charge door with isolated flame, on the one hand, can further prevent flame blowout in the kiln, on the other hand, after leaning on new charge door brick on isolated flame preheating plate, can utilize the temperature in the kiln to preheat new charge door brick, make new charge door brick can heat up to the old brick temperature of record before old charge door brick demolishs. For the temperature measurement of the old charging hole brick 1, the temperature measurement position can be selected within the range of 5-10cm away from the edge of the old charging hole brick 1 for temperature measurement; correspondingly, for a new feed block, temperature measurements are also required at the same location corresponding thereto.
The flame-isolating preheating plate can be made of refractory materials such as ceramic fiber plates and the like according to the size of the feed inlet, and is generally larger than the feed inlet; the thickness of the flame-isolating preheating plate can be 10-20 mm, preferably 12.5mm, certain strength is kept at high temperature, and the preheating effect of a new feed opening brick is prevented from being influenced by the fragmentation of a ceramic fiber plate in the preheating process.
When the temperature of the new charging hole brick is raised to the temperature of the old brick, the new charging hole brick needs to be preheated for 5-10 days, then the flame isolating preheating plate 3 can be removed, after the flame isolating preheating plate 3 is removed, the wall heat-insulating material and the charging hole brick seal are manufactured again, for example, heat-insulating refractory mortar is adopted as the heat-insulating material, and glass fiber sealing cotton is adopted as the sealing material, etc. When the flame-isolating preheating plate 3 is dismounted, the time needs to be shortened as much as possible, and the temperature difference before and after mounting is reduced.
In addition, referring to fig. 2, a guide rail 6 is generally arranged on the ground for moving the charging machine, since the central point of the guide rail 6 corresponds to the central point of the old charging hole brick installed in a cold state, after the old charging hole brick is heated by the flame of the kiln, the wall body may deform to some extent due to the non-uniformity of thermal expansion after the kiln is heated, so that the central point of the old charging hole brick may change; therefore, before the old charging hole brick is removed, the position of the guide rail 6 needs to be readjusted and set according to the central point of the old charging hole brick at the new position, and then the position of the new charging hole brick is adjusted according to the adjusted position of the guide rail 6, so that the center of the new charging hole brick corresponds to the central point of the guide rail 6, even if the feeding machine port on the new charging hole brick is positioned at the central position. Wherein, can set up position control structure, for example set up structures such as jackscrew or bolt in fixed steelframe 4's side all around, promote fixed steelframe 4 through rotatory jackscrew or bolt and remove to adjust the position of new charge door brick.
In order to better understand the technical solution of the present invention, the following description is made with reference to fig. 1 to 6 and the relatively comprehensive technical features.
Selecting a temperature measuring point within the range of 5-10cm from the edge of the old charging hole brick 1 to measure the temperature and recording the temperature of the old brick;
the pressure in the kiln is adjusted to be micro-positive pressure, so that high-temperature fire in the kiln is prevented from being sprayed out;
adjusting the position of the guide rail 6 which is not removed by the old feeding machine according to the center of the feeding machine port of the old feeding hole brick 1 at the moment, so that the center point of the guide rail 6 and the center of the feeding machine port of the old feeding hole brick 1 are in contact with each other;
using a charging hole brick hoisting device, hooking the fixed steel frame 4 loaded with the old charging hole brick by using a hoisting rod 72, removing a pressure rod on the old charging hole brick and a fixed screw on the fixed steel frame, slightly prying the old charging hole brick by operating the hoisting rod 72, moving the old charging hole brick out of a charging hole on a kiln, and simultaneously placing the flame isolating preheating plate 3 at the position of the old brick hole to seal the charging hole;
then using a charging hole brick hoisting device, using a hoisting rod 72 to hook the fixed steel frame 4 loaded with new charging hole bricks, and simultaneously clamping the frames on the left side and the right side of the fixed steel frame 4 with the front end of one fixed guide rod 5 respectively; the lifting rod 72 is operated to enable the new charging hole brick to abut against the flame-isolated preheating plate 3 from a distance, and meanwhile, the fixed guide rod 5 is operated to move along with the lifting rod 72, so that the left-right shaking of the new charging hole brick is avoided, and the safety of the new charging hole brick in the replacement process is improved; loading a compression bar on the new charging hole brick and fixing the compression bar and the fixed steel frame 4 on the wall of the kiln together by using a fixing screw;
measuring the temperature of the new charging hole brick, wherein the temperature measuring position of the new charging hole brick corresponds to the temperature measuring position of the old charging hole brick 1, namely the two positions are the same; after the temperature of the new charging hole brick is raised to the temperature of the old brick, the new charging hole brick is continuously preheated for 5 to 10 days, and then the flame isolating preheating plate 3 is removed; loosening the compression rod and fixing screws on the reinforcing fixed steel frame, correcting the position of the new charging hole brick to enable the new charging hole brick to be installed on the charging hole, compressing the compression rod and fastening the fixing screws;
moving the hoisting equipment of the charging hole brick, and adjusting the position of the new charging hole brick by taking the central point of the guide rail 6 on the ground as a reference point to ensure that the feeding machine hole of the new charging hole brick is positioned at the central position; and finishing the replacement of the charging hole brick.
After the change of the charging opening brick is finished, the charging machine corresponding to the model can be changed, so that the discharge opening of the charging machine is loaded on the charging machine opening of the new charging opening brick, and the charging operation is continued.
According to the technical scheme, the feeder with different feeder parameters can be replaced by replacing the feed inlet bricks without stopping the machine, the requirements of different material prescriptions and different production specifications on the feeder in the production of the ultrathin flexible glass kiln are met, and the rapid conversion of production is realized.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A method for replacing a charging hole brick without stopping is characterized by comprising the following steps:
aiming at an old charging hole brick (1), selecting a temperature measuring position (2), measuring the temperature of the old charging hole brick (1) at the temperature measuring position (2) and recording;
adjusting the pressure in the kiln to be micro-positive pressure;
hoisting the old charging hole brick by using charging hole brick hoisting equipment, moving the old charging hole brick to a set position, and simultaneously placing the flame isolating preheating plate (3) at the original brick hole to plug the charging hole;
hoisting a new charging hole brick by using the charging hole brick hoisting equipment, abutting the new charging hole brick against the flame-isolated preheating plate (3), fixing the new charging hole brick, and preheating the new charging hole brick;
measuring the temperature of the new charging hole brick, preheating the new charging hole brick for a set time after the temperature of the new charging hole brick is raised to the temperature of the old brick, removing the flame isolating preheating plate (3), and hermetically installing the new charging hole brick on the charging hole; and the temperature measuring position of the new charging hole brick corresponds to the temperature measuring position of the old charging hole brick.
2. Method for changing a feed opening brick without stopping according to claim 1, characterized in that the old feed opening brick or the new feed opening brick is mounted on a fixed steel frame (4).
3. The method for replacing a charging opening brick without stopping the machine according to claim 2, characterized in that in the process of lifting the new charging opening brick by using the charging opening brick lifting equipment, a fixed guide rod (5) is connected with the fixed steel frame (4), so that the fixed guide rod (5) moves along with the fixed steel frame (4) provided with the new charging opening brick, thereby stably moving the new charging opening brick.
4. A method for changing a feed opening brick without stopping according to claim 3, characterized in that the number of the fixed guide rods (5) is two, and the front ends of the fixed guide rods (5) are clamped with the fixed steel frame (4).
5. A method for changing a feed opening brick without stopping the machine according to claim 1, characterized in that after the new feed opening brick is sealingly mounted on the feed opening, the new feed opening brick is adjusted so that the feed opening of the new feed opening brick corresponds to the center point of the guide rail (6) with reference to the guide rail (6) from which the old feeder was not removed.
6. A method for changing a loading aperture brick without stopping according to claim 5, characterized in that the position of the guide rail (6) is adjusted and set in accordance with the position of the old loading aperture brick (1) before the old loading aperture brick (1) is removed.
7. The method for changing a feed opening brick without stopping according to any one of claims 1 to 6, wherein the micro-positive pressure is 10 to 20Pa.
8. A method for changing a feed opening brick without stopping according to any of claims 1 to 6, characterized in that the temperature is measured in the range of 5-10cm from the edge of the old feed opening brick (1).
9. The method for replacing a charging opening brick without shutdown according to any one of claims 1 to 6, characterized in that after the new charging opening brick is heated to the old brick temperature, the new charging opening brick is continuously preheated for 5 to 10 days, and then the flame-isolating preheating plate (3) is dismantled.
10. Method for changing a feed opening brick without stopping according to any of claims 1 to 6, characterized in that the plate thickness of the flame-insulated preheating plate (3) is 10 to 20mm.
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| CN202110973826.6A CN113816589B (en) | 2021-08-24 | 2021-08-24 | Method for replacing feed inlet bricks without stopping machine |
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