CN214735335U - A keep off brick structure for basalt electric melting furnace - Google Patents
A keep off brick structure for basalt electric melting furnace Download PDFInfo
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- CN214735335U CN214735335U CN202120147694.7U CN202120147694U CN214735335U CN 214735335 U CN214735335 U CN 214735335U CN 202120147694 U CN202120147694 U CN 202120147694U CN 214735335 U CN214735335 U CN 214735335U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The utility model discloses a brick retaining structure for a basalt electric melting furnace, which comprises a melting tank, a material channel, a working material channel and a working chamber, wherein a feeding part is arranged above the melting tank, and the brick retaining structure is arranged between the melting tank and the material channel; the top of the brick blocking structure is fixed on the inner wall of the top of the melting tank, and the bottom of the brick blocking structure and the bottom of the melting tank are provided with a preset height for conducting a solution; and a cooling water tank is accommodated in the center of the blocking brick structure. The prior art adopts a longer throat structure, and the blocking brick structure is innovatively adopted to replace the original throat and ascending way, so that the structure is simplified, the length of the throat can be reduced to be half or less than the original length, the construction cost and the required energy consumption are reduced, and the production efficiency is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the production facility technique of basalt fiber and specifically relates to a keep off brick structure that is used for keeping off brick structure of basalt electric melting furnace.
Background
The basalt fiber is a continuous fiber drawn from natural basalt, and is a continuous fiber drawn from basalt stone at high speed through a platinum-rhodium alloy wire drawing bushing after being melted at 1450-1500 ℃. The basalt fiber is a novel inorganic environment-friendly green high-performance fiber material and is composed of oxides such as silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, ferric oxide, titanium dioxide and the like. The basalt continuous fiber has high strength, and also has various excellent performances of electrical insulation, corrosion resistance, high temperature resistance and the like. In addition, the production process of the basalt fiber determines that the produced waste is less, the environmental pollution is less, and the product can be directly degraded in the environment after being discarded without any harm, so the basalt fiber is a real green and environment-friendly material. Basalt fibers are taken as one of four major fibers (carbon fibers, aramid fibers, ultra-high molecular weight polyethylene and basalt fibers) which are mainly developed in China, and industrial production is realized. The basalt continuous fiber has been widely applied in various aspects such as fiber reinforced composite materials, friction materials, shipbuilding materials, heat insulation materials, automobile industry, high-temperature filter fabrics, protection fields and the like.
The structure of a brick blocking structure for a basalt electric melting furnace can refer to Chinese invention patent with an authorization publication number of CN106396340B at present, and discloses an electric melting furnace for producing continuous basalt fibers. The existing electric melting furnace is basically of the structure, and has the following defects: generally, the process step of drawing continuous fibers is carried out when materials are conveyed from the bottom of a melting tank to a working material channel and a long-distance throat is needed to reach the position of a bushing, and because the distance from the melting tank to the throat of the working material channel (wire drawing forming area) is long, the manufacturing cost and the electric energy loss cost of an electric melting furnace are increased, the preparation time for producing the continuous fibers is prolonged, and the production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary of embodiments of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that the following summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
According to one aspect of the application, a brick blocking structure for a basalt electric melting furnace is provided, the basalt electric melting furnace comprises a melting tank, a material channel, a working material channel and a working chamber, a feeding part is arranged above the melting tank, and the brick blocking structure is arranged between the melting tank and the material channel; the top of the brick blocking structure is fixed on the inner wall of the top of the melting tank, and the bottom of the brick blocking structure and the bottom of the melting tank are provided with a preset height for conducting a solution; and a cooling water tank is accommodated in the center of the blocking brick structure.
Wherein, the coolant tank who keeps off the brick structure is the corruption that is used for avoiding keeping off the outer wall of brick structure and soaks in the melting bath for a long time, coolant tank includes circulating water pump and pipeline, the pipeline has filling opening and egress opening, circulating water pump's entry is connected with the filling opening of pipeline, the export of circulating water pump is connected with the egress opening of pipeline, the pipeline includes inlet tube and outlet pipe, the equal vertical setting of inlet tube and outlet pipe, the lower part that keeps off the brick structure is located to the filling opening of pipeline, the outlet pipe upwards extends the upper portion that keeps off the brick structure, advance water piping connection to the filling opening of pipeline, pour into low-temperature water by the filling opening, flow out by egress opening and outlet pipe behind the circulating water pump, thereby play the effect for keeping off the outer wall cooling of brick structure. Generally, the temperature of the low-temperature water flowing from the injection port is lower than the room temperature, and the circulating water pump can control the temperature of the flowing water to be constantly kept at a certain temperature value between 35 ℃ and 50 ℃.
Furthermore, the blocking brick structure is a rectangular structure with a consistent cross section. Meanwhile, in order to further avoid the corrosion of the outer wall of the blocking brick structure which is soaked in the melting tank for a long time, the cooling water tank is positioned at the geometric center of the cross section of the blocking brick structure on the cross section, the height of the cooling water tank is 50% -90% of the height of the blocking brick structure soaked in the liquid of the melting tank (generally, the highest height soaked in the liquid of the melting tank), and the actual height can be selected according to the cooling temperature and the cost.
Preferably, the outer wall of the brick retaining structure is implemented by using a furnace lining material (namely, the inner wall material of the furnace body), and the furnace lining material is one or a combination of more of a chromium corundum brick, a mullite brick, a light mullite brick and a clay brick.
Preferably, the thickness of the outer wall of the retaining brick structure ranges from 50 mm to 100 mm. The brick blocking structure can reduce the erosion of furnace lining materials and prolong the service life by arranging the cooling water tank and limiting the thickness of the outer wall.
Further, the height H of the baffle brick structure and the length L and width W of the cross section are set according to the flow Q of the melt in the throat, and further, the preset height H formed by the bottom of the baffle brick structure and the bottom of the melting tank is Q/(V × W × ρ), wherein Q represents the flow of the melt flowing through the throat in 1 hour (or other specific time period), and is expressed in kilograms per hour (kg/H), V is the average flow velocity of the melt flowing through the throat, and is expressed in millimeters per hour (mm/H), W is the width of the cross section of the baffle brick structure, and is expressed in millimeters (mm), ρ is the melt density, and is expressed in kilograms per mm3. According to practical experiments, the flow Q of the melt in the throat is designed to be (0.5T/D M)2)×S～(1.5T/D*M2) The optimum production effect can be achieved within the interval of xS, wherein S is the area of the melting tank; t is ton, D is day, M is rice.
This application adopts above-mentioned structure, keeps off the brick structure and is used for separating melting tank and material way, keeps off to have between the bottom of brick structure lower part and melting tank and predetermines the liquid flowing hole that highly forms certain height and width for switch on the good fuse-element inflow material way of melting. And a liquid flow hole formed at the lower part of the brick blocking structure is used for separating the melted melt from the unmelted melt and plays a role in communication. The baffle brick structure can separate the melted melt from the unmelted melt because the melted melt is immersed at the bottom of the melting tank. The throat is an important structure of the kiln and is a vulnerable structure, the service life of the kiln is determined to a great extent, a longer throat structure is adopted in the prior art, the original throat and the upper lane are replaced by the blocking brick structure innovatively adopted in the application, the structure is simplified, the length of the throat can be reduced to be half or less than the original length, the construction cost and the required energy consumption are reduced, and the production efficiency is greatly improved.
In conclusion, the flowing liquid cave in the prior art is improved through the brick blocking structure, the flowing liquid cave distance from the melting tank bottom to the material channel is shortened by 4/5 due to the addition of the baffle structure, the construction cost of the electric melting furnace is greatly reduced, the loss of energy consumption is reduced, and the production efficiency of producing continuous basalt fibers is improved.
Drawings
The invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used to designate like or similar parts throughout the figures thereof. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate preferred embodiments of the present invention and, together with the detailed description, serve to explain the principles and advantages of the invention. In the drawings:
FIG. 1 is a top view of an electric melting furnace according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an electric melting furnace according to an embodiment of the present invention;
FIG. 3 is a schematic view of a brick blocking structure of the electric melting furnace according to the embodiment of the present invention;
fig. 4 is a schematic view of a cooling water tank according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and descriptions have omitted, for the sake of clarity, the representation and description of components and processes that are not relevant to the present invention and known to those of ordinary skill in the art.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the embodiment of the utility model provides a keep off brick structure for basalt electric melting furnace, including furnace body 100 and electric smelting controlling means 200, set gradually melting tank 101 in the furnace body 100, material way 102, work material way 103 and studio 104, the top of melting tank 101 is equipped with feeding portion, and the top of furnace body 100 is equipped with charge door 105, and feeding portion includes the feeding device who drops into material charge door 105. A brick retaining structure 300 is arranged between the melting tank 101 and the material channel 102. The working chamber 104 has a plurality of forming areas, each forming area is provided with a bushing 107, the forming areas are separately separated, and the working chamber 104 is at least provided with more than 2 forming areas.
Referring to fig. 3, the baffle brick structure 300 has a central portion 301 for receiving the cooling water tank and an outer wall 302 wrapping the central portion 301, the top of the baffle brick structure 300 is fixed to the inner wall of the top of the molten bath 101, and the bottom of the baffle brick structure 300 and the bottom of the molten bath 101 have a predetermined height for conducting a melt. The brick blocking structure 300 is used for dividing the melting tank 101 and the material channel 102, and a liquid flow hole with a certain height and width is formed between the lower part of the brick blocking structure 300 and the bottom of the melting tank 101 and is used for conducting the melted melt to flow into the material channel 102. And a liquid flow hole formed at the lower part of the brick blocking structure is used for separating the melted melt from the unmelted melt and plays a role in communication. The baffle brick structure can separate the melted melt from the unmelted melt because the melted melt is immersed at the bottom of the melting tank. The throat is an important structure of the kiln and is a vulnerable structure, the service life of the kiln is determined to a great extent, a longer throat structure is adopted in the prior art, the blocking brick structure 300 is innovatively adopted to replace the original throat and the ascending channel, the structure is simplified, the length of the throat can be reduced to be half or less than the original length, the construction cost and the required energy consumption are reduced, and the production efficiency is greatly improved.
The height H of the blocking brick structure (or the preset height H formed by the bottom of the blocking brick structure and the bottom of the melting tank) and the length L and the width W of the cross section are set according to the flow Q (mass flow) of the melt of the throat, and further, the preset height H formed by the bottom of the blocking brick structure and the bottom of the melting tank is Q/(V multiplied by W multiplied by rho), wherein Q represents the flow of the melt flowing through the throat within 1 hour (or other specific time periods), and is expressed in units of kilogram/hour (kg/H), V is the flow velocity of the melt flowing through the throat, and is expressed in units of millimeters/hours (mm/H), W is the width of the cross section of the blocking brick structure, and is expressed in units of millimeters (mm), rho is the melt density, and is expressed in units of kg/mm3. The above calculation is according to the formula: q ═ V × W × h × ρ (mass flow Q ═ flow velocity V × preset height h × cross-sectional width W × melt density ρ). At the moment, the height H of the blocking brick structure is the depth of the melting tank minus the preset height H, and the height H, the preset height H and the length L of the cross section of the blocking brick structure are all in millimeters. In the above calculation, the blocking brick structure is a columnar structure with a consistent cross section, and may be a regular or irregular prism or cylindrical structure, so that the width of the cross section of the blocking brick structure is the width of the bottom of the blocking brick structure.
Generally, in the above calculation, the melting capacity of the melting furnace is designed to be 1 to 3 tons per square meter per day. Preferably, the flow rate Q of the melt in the throat is preferably designed to be (0.5 kg/h-1.5 kg/h) × S, the width W of the cross section is preferably in the range of 150-.
In addition, in order to avoid the corrosion of the outer wall of the brick retaining structure which is soaked in the melting tank for a long time, a cooling water tank is arranged in the brick retaining structure, so that the erosion of furnace lining materials can be reduced, and the service life is prolonged. The cooling water tank is a tubular cooler, a plate cooler or an air-cooled cooler using water or air as a coolant, and for example, the cooling water tank may be simply implemented by using a cooling water tank, or may be implemented by using another cooling water tank. As a specific example, referring to fig. 4, the cooling water tank includes a circulating water pump 310 and a pipe 320, the pipe 320 has an injection port 321 and an outflow port 322, an inlet 311 of the circulating water pump 310 is connected to the injection port 321 of the pipe, an outlet 312 of the circulating water pump 310 is connected to the outflow port 322 of the pipe 320, the pipe 320 includes an inlet pipe 323 and an outlet pipe 324, both the inlet pipe 323 and the outlet pipe 324 are vertically disposed, the injection port 321 of the pipe 320 is disposed at a lower portion of the brick blocking structure, the outflow port 322 of the pipe is connected (via a hose) to the outlet pipe 324, the outlet pipe 324 extends upward out of an upper portion of the brick blocking structure, the inlet pipe 323 (via a hose) is connected to the injection port of the pipe, low-temperature water is injected from the injection port, and flows out of the outflow port and the outlet pipe after passing through the circulating water pump, thereby achieving an effect of cooling the outer wall of the brick blocking structure. Generally, the temperature of the low-temperature water flowing from the injection port is lower than the room temperature, and the circulating water pump can control the temperature of the flowing water to be constantly kept at a certain temperature value between 35 ℃ and 50 ℃.
In order to further avoid the corrosion of the outer wall of the blocking brick structure soaked in the molten pool for a long time, the cooling water tank is positioned at the geometric center of the cross section of the blocking brick structure on the cross section, the height of the cooling water tank is 50% -90% of the height of the blocking brick structure soaked in the molten pool liquid (generally, the highest height soaked in the molten pool liquid), and the actual height can be selected according to the cooling temperature and the cost.
The outer wall 302 of the brick retaining structure 300 is implemented by using a furnace lining material (i.e., an inner wall material of a furnace body). The thickness range of the outer wall of the blocking brick structure is 50-100 mm. The brick blocking structure can reduce the erosion of furnace lining materials and prolong the service life by arranging the cooling water tank and limiting the thickness of the outer wall.
The electric melting control device comprises a temperature control unit and a transformer which are electrically connected with each other, a thermocouple assembly of the temperature control unit is connected with the transformer, the transformer is connected with an electrode assembly, the power of an electrode is adjusted by controlling the transformer through the temperature control unit, the electrode is heated to a preset temperature, and basalt is melted into high-temperature liquid.
The furnace body 100 has a furnace top, a furnace wall, and a furnace bottom, which are all multilayer walls made of heat-resistant materials. Generally, the heat-resistant materials comprise chromium corundum bricks, mullite bricks, light mullite bricks, clay bricks and the like, and the furnace top, the furnace wall and the furnace bottom can be respectively realized by selecting two or more materials of the heat-resistant materials. In this example, the furnace wall includes an inner insulating brick (light mullite brick) and an outer clay brick. The furnace bottom comprises a chromium corundum brick, a mullite brick, a light mullite brick and a clay brick from inside to outside in sequence. The furnace roof comprises light mullite bricks and upper layer light bricks (foamed bricks). The furnace lining brick of the furnace body is made of a chromium corundum brick material.
Through above-mentioned structure, the throat among the prior art is improved to this application, and the joining of baffle structure makes the throat distance of melting tank stove bottom to wire drawing shaping district shorten half, consequently, not only greatly reduced the construction cost of electric melting kiln stove, still reduced the loss of energy consumption, improved the production efficiency of production continuous fibers.
The back end of a melting zone formed by the melting tank is connected with a material conveying channel, a throat is arranged between the melting zone and the material conveying channel, and a brick blocking structure is arranged on the material conveying channel between the melting tank and the material conveying channel. The melting tank 101 is directly heated by adopting electrodes, the lower part of the melting tank is discharged to enhance heat transfer and improve the melting rate, and meanwhile, the electrodes are arranged by adopting single-side electrodes, so that the temperature of basalt melt can be accurately controlled, and the wire drawing operation is facilitated.
In actual use, the charging device charges basalt materials into the furnace body 100 through the charging opening 105, and the basalt materials sequentially pass through the melting tank 101 → the brick blocking structure 300 → the material channel 102 → the working material channel 103 → the working chamber 104 (the floor drain region); and electrifying the electrode assembly by the electric melting control device, controlling the transformer to change the power of the electrode assembly according to the temperature information in the furnace fed back by the thermocouple assembly, keeping the temperature in the kiln at 1400-1700 ℃, and fully melting the basalt material into uniform melt.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
While the present invention has been disclosed above by the description of specific embodiments thereof, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements or equivalents to the invention may be devised by those skilled in the art within the spirit and scope of the appended claims. Such modifications, improvements and equivalents are also intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a keep off brick structure for basalt electric melting furnace, this basalt electric melting furnace include melting tank, material way, work material way and studio, the top of melting tank is equipped with reinforced portion, its characterized in that: the brick blocking structure is arranged between the melting tank and the material channel; the top of the brick blocking structure is fixed on the inner wall of the top of the melting tank, and the bottom of the brick blocking structure and the bottom of the melting tank are provided with a preset height for conducting a solution; and a cooling water tank is accommodated in the center of the blocking brick structure.
2. The baffle brick structure for the basalt electric melting furnace as set forth in claim 1, wherein: cooling water tank includes circulating water pump and pipeline, the pipeline has filling opening and egress opening, circulating water pump's entry is connected with the filling opening of pipeline, the export of circulating water pump is connected with the egress opening of pipeline, the pipeline includes inlet tube and outlet pipe, the equal vertical setting of inlet tube and outlet pipe, the lower part that keeps off the brick structure is located to the filling opening of pipeline, the outlet pipe is connected to the egress opening of pipeline, the outlet pipe upwards extends the upper portion that keeps off the brick structure, advance water piping connection to the filling opening of pipeline, pour into low-temperature water by the filling opening, flow out by egress opening and outlet pipe behind the circulating water pump.
3. The baffle brick structure for the basalt electric melting furnace as set forth in claim 1 or 2, wherein: the blocking brick structure is a rectangular structure with a consistent cross section; the cooling water tank is positioned at the geometric center of the cross section of the blocking brick structure on the cross section, and the height of the cooling water tank is 50-90% of the height of the blocking brick structure soaked in the liquid in the melting tank.
4. The baffle brick structure for the basalt electric melting furnace as set forth in claim 1, wherein: the blocking brick structure is provided with a central part for accommodating the cooling water tank and an outer wall for wrapping the central part; the outer wall is made of furnace lining materials.
5. The baffle brick structure for the basalt electric melting furnace as set forth in claim 4, wherein: the furnace lining material is one or a combination of more of a chromium corundum brick, a mullite brick, a light mullite brick and a clay brick.
6. The baffle brick structure for the basalt electric melting furnace as set forth in claim 4, wherein: the thickness range of the outer wall of the blocking brick structure is 50-100 mm.
7. The baffle brick structure for the basalt electric melting furnace as set forth in claim 1, wherein: the height H of the stopper structure and the length L and width W of the cross-section are set according to the flow rate Q of the melt of the throat.
8. The baffle brick structure for the basalt electric melting furnace as set forth in claim 7, wherein: the preset height h formed by the bottom of the brick blocking structure and the bottom of the melting tank is Q/(V multiplied by W multiplied by rho), wherein Q represents the flow of the melt flowing through the throat within 1 hour, the unit is kg/h, V is the average flow velocity of the melt flowing through the throat, the unit is mm/h, W is the width of the cross section of the brick blocking structure, the unit is mm, rho is the density of the melt, and the unit is kg/mm3。
9. The baffle brick structure for the basalt electric melting furnace as set forth in claim 8, wherein: the width W of the cross section ranges from 150 mm to 600 mm.
10. The baffle brick structure for the basalt electric melting furnace as set forth in claim 7, wherein: the flow rate Q of the melt of the throat is designed to be (0.5T/D M)2)×S～(1.5T/D*M2) X S, wherein S is the area of the melting tank; t is ton, D is day, M is rice.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120147694.7U CN214735335U (en) | 2021-01-19 | 2021-01-19 | A keep off brick structure for basalt electric melting furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120147694.7U CN214735335U (en) | 2021-01-19 | 2021-01-19 | A keep off brick structure for basalt electric melting furnace |
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| CN214735335U true CN214735335U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043574A (en) * | 2022-06-28 | 2022-09-13 | 凯盛君恒药玻(青岛)有限公司 | Kiln for borosilicate glass |
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2021
- 2021-01-19 CN CN202120147694.7U patent/CN214735335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043574A (en) * | 2022-06-28 | 2022-09-13 | 凯盛君恒药玻(青岛)有限公司 | Kiln for borosilicate glass |
| CN115043574B (en) * | 2022-06-28 | 2023-04-25 | 凯盛君恒药玻(青岛)有限公司 | Kiln for borosilicate glass |
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