CN104370440A - Batch melting method - Google Patents
Batch melting method Download PDFInfo
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- CN104370440A CN104370440A CN201310349332.6A CN201310349332A CN104370440A CN 104370440 A CN104370440 A CN 104370440A CN 201310349332 A CN201310349332 A CN 201310349332A CN 104370440 A CN104370440 A CN 104370440A
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- China
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- glass
- sealing device
- rotary type
- batch
- kiln
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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
- C03B5/235—Heating the glass
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention relates to a batch melting method, which is characterized in that the batch is melted by introduced hot winds. The batch sintering and melting process technology comprises the following steps: at first, mixing an adhesive into a glass batch, wherein the adhesive accounts for 0.5 to 3 wt% of the glass batch; pressing the glass batch into spherical particles with a particle size of 3 to 25 mm, then feeding the spherical particles into a rotary heating furnace, pre-burning the glass particles for 0.5 to 2 hours at a temperature of 700 to 800 DEG C, discharging the sintered and densified spherical particles from the outlet of the rotary heating furnace, and finally transferring the spherical particles into a glass melting furnace, wherein the length of the rotary heating cylinder is 10 to 50 meters, the inner diameter is 1.2 to 3.5 meters, and the rotation speed is 3 to 10 cycles per minute.
Description
Technical field
The present invention relates to a kind of melting method of admixtion.
Background technology
In sheet glass, all adopt powdery admixtion, this method is by various raw material after pulverizing, sieving certain particle size, through weighing, mix and making powder loose material.This loose material easily produces layering in the processes such as conveying, storage and powder flies upward, and the admixtion just having entered kiln is easy to blown afloat by flame and take melting furnaces out of, so both changes the composition of glass, can pollute again to melting furnaces and regenerator, contaminate environment.
The loose shape form of admixtion is put in melting furnaces, and because its tap density is lower, therefore the heating efficiency of flame to admixtion is low.In addition, admixtion puts in the middle of melting furnaces with certain thickness to obtain, and the heat-conductive characteristic in loose shape admixtion is poor especially, so it is long by the thermosetting silicate time, heat exchanger effectiveness is low, affects refining quality simultaneously.Although the scale of current glass furnace constantly expands, this problem unresolved all the time.
The structure of current glass melting furnaces and melting method determine silicate formation in five large processes of glass smelting, the formation of glass, the clarification of glass, the homogenizing of glass complete in same structure.The gaseous constituent of bringing in admixtion is more, and the clarification required for glass melt, homogenising time are longer.The continuous expansion of glass melter scale is also limit from another one aspect.
Along with the continuous expansion of glass melter, the span of its area of section is also increasing, melting furnaces own wt constantly increases, higher requirement be it is also proposed to its steel construction, refractory materials, therefore, under the prerequisite not changing glass melting mode, improve glass throughput from the angle expanding single line scale merely and quality, reduction energy consumption and exhaust gas emission are more and more difficult.
In recent years; for problems such as glass batch pelletizing and pre-heatings; application number is that the Chinese patent of 200710110608.X discloses one " float glass batches pelletizing and pre-heating energy efficient technology "; this patent application knowledge utilization flue gas of glass melting furnace preheating carries out the outer preheating (its preheating temperature is about 300 DEG C ~ 500 DEG C) of melting furnaces to the glass batch after granulation; do not reach the requirement of float glass admixtion carbonate precalcining, fundamentally cannot solve glass Problems existing in melting process yet.
Application number be 201010251701.4 Chinese patent disclose one " glass batch living broadcast method ", glass batch is pressed into density 1.9 ~ 2.5t/m by it
3, be of a size of the block material of 300 × 300 × 10 ~ 600 × 600 × 30mm, then 700 ~ 1000 DEG C of preheatings, and broken at hot decline lumpy material, then carried and be sprinkling upon in filling pocket.This patent decreases the dust from flying in glass melter, extend refractory life, prevent regenerator jam, decrease admixtion to fly to damage, but due to the block comparatively large (600 × 600 × 30mm) of its compacting, certain intensity is had 700 ~ 1000 DEG C of hot its sinter pieces lower, therefore, broken difficulty is added; Meanwhile, after adding broken process, also result in the discontinuous of production process simultaneously.
Summary of the invention
A melting method for admixtion, is characterized in that logical hot blast makes batch melting.
Described admixtion, is characterized in that sintering melt processed technique is carried out according to following treatment step:
(1) in glass batch, mix the binding agent of 0.5wt% ~ 3wt%, and be pressed into the spherical pellets of 3 ~ 25mm;
(2) spherical pellets be added in rotary type process furnace, in 700 ~ 800 DEG C of pre-burning 0.5 ~ 2h, the spherical pellets being sintered densification adds to glass melter from the outlet of rotary type process furnace.
The sintering processes technique of described glass batch, is characterized in that adopting surface, with the vessel of semicircular concave, glass batch is pressed into spherical pellets in step (1).
The sintering processes technique of described glass batch, is characterized in that described binding agent is water glass.
The sintering processes technique of described glass batch, is characterized in that rotary type process furnace described in step (2) comprises charging device (2), is the rotary type cartridge heater (3) at 3 ~ 12 ° of inclination angles, kiln end sealing device (8), kiln tail sealing device (11) and burner (4) with level;
The upper end of described charging device (2) is provided with storage bin (1), and lower end is connected with kiln tail sealing device (11);
High-end and the low side of described rotary type cartridge heater (3) is tightly connected with kiln tail sealing device (11) and kiln end sealing device (8) respectively, one end of described kiln tail sealing device (11) and the inlet communication of high temperature draught fan (12), described kiln end sealing device (8) is provided with smoke inlet (7) and spherical pellets outlet (9);
Described burner (4) stretches in rotary type cartridge heater (3) through kiln end sealing device (8), and described burner (4) is provided with fuel gas inlet (5) and air intlet (6).
The sintering processes technique of described glass batch, it is characterized in that the length of described rotary type cartridge heater (3) is 10 ~ 50 meters, internal diameter is 1.2 ~ 3.5 meters, and rotating speed is 3 ~ 10 revs/min.
Beneficial effect:
(1) carbonate decomposition in glass batch is transferred to outside glass melter carry out, greatly reduce the gas content in glass batch, effectively improve the transmission of heat, shorten the time of glass clarifying, homogenizing, be equivalent under the prerequisite not expanding glass melter area, improve its single line output, reduce energy consumption; The present invention increases fusing amount 20% ~ 30% under can be implemented in the condition that current melting furnaces scale do not expand;
(2) partial fume that produces for fuel combustion in glass melter of the thermal source of rotary type process furnace, the insufficient section of its heat is supplied by burner, has saved mass energy.
Accompanying drawing explanation
Fig. 1 is a kind of rotary type process furnace.
Wherein, 1, storage bin, 2, charging device, 3, rotary type cartridge heater, 4, burner, 5, fuel gas inlet, 6, air intlet, 7, smoke inlet, 8, kiln end sealing device, 9, spherical pellets outlet, 10, spherical pellets, 11, kiln tail sealing device, 12, high temperature draught fan.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
Embodiment
As shown in Figure 1, a kind of glass batch carbonate melts the device of precalcining---rotary type process furnace, and it comprises charging device 2, is the rotary type cartridge heater 3 at 3 ~ 12 ° of inclination angles, kiln end sealing device 8, kiln tail sealing device 11 and burner 4 with level;
The upper end of described charging device 2 is provided with storage bin 1, and lower end is connected with kiln tail sealing device 11;
High-end and the low side of described rotary type cartridge heater 3 is tightly connected with kiln tail sealing device 11 and kiln end sealing device 8 respectively, one end of described kiln tail sealing device 11 and the inlet communication of high temperature draught fan 12, described kiln end sealing device 8 is provided with smoke inlet 7 and spherical pellets outlet 9;
Described burner 4 stretches in rotary type cartridge heater 3 through kiln end sealing device 8, and the length that described burner 4 is provided with rotary type cartridge heater 3 described in combustion gas is 25 meters, and internal diameter is 2 meters, and rotating speed is 7 revs/min, and output is 700 tons/day.
Concrete steps are:
(1) in glass batch, mix the binding agent of 3wt%, and be pressed into the spherical pellets of 15mm;
(2) spherical pellets be added in rotary type process furnace, in 750 DEG C of pre-burning 1.5h, the spherical pellets being sintered densification adds to glass melter from the outlet of rotary type process furnace.
Above are only single embodiment of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content not departing from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (6)
1. a melting method for admixtion, is characterized in that logical hot blast makes batch melting.
2., according to admixtion according to claim 1, it is characterized in that sintering melt processed technique is carried out according to following treatment step:
(1) in glass batch, mix the binding agent of 0.5wt% ~ 3wt%, and be pressed into the spherical pellets of 3 ~ 25mm;
(2) spherical pellets be added in rotary type process furnace, in 700 ~ 800 DEG C of pre-burning 0.5 ~ 2h, the spherical pellets being sintered densification adds to glass melter from the outlet of rotary type process furnace.
3., according to the sintering processes technique of glass batch according to claim 2, it is characterized in that in step (1), adopting surface, with the vessel of semicircular concave, glass batch is pressed into spherical pellets.
4., according to the sintering processes technique of glass batch according to claim 2, it is characterized in that described binding agent is water glass.
5., according to the sintering processes technique of glass batch according to claim 2, it is characterized in that rotary type process furnace described in step (2) comprises charging device (2), is the rotary type cartridge heater (3) at 3 ~ 12 ° of inclination angles, kiln end sealing device (8), kiln tail sealing device (11) and burner (4) with level;
The upper end of described charging device (2) is provided with storage bin (1), and lower end is connected with kiln tail sealing device (11);
High-end and the low side of described rotary type cartridge heater (3) is tightly connected with kiln tail sealing device (11) and kiln end sealing device (8) respectively, one end of described kiln tail sealing device (11) and the inlet communication of high temperature draught fan (12), described kiln end sealing device (8) is provided with smoke inlet (7) and spherical pellets outlet (9);
Described burner (4) stretches in rotary type cartridge heater (3) through kiln end sealing device (8), and described burner (4) is provided with fuel gas inlet (5) and air intlet (6).
6., according to the sintering processes technique of glass batch according to claim 2, it is characterized in that the length of described rotary type cartridge heater (3) is 10 ~ 50 meters, internal diameter is 1.2 ~ 3.5 meters, and rotating speed is 3 ~ 10 revs/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349332.6A CN104370440A (en) | 2013-08-12 | 2013-08-12 | Batch melting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349332.6A CN104370440A (en) | 2013-08-12 | 2013-08-12 | Batch melting method |
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| Publication Number | Publication Date |
|---|---|
| CN104370440A true CN104370440A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310349332.6A Pending CN104370440A (en) | 2013-08-12 | 2013-08-12 | Batch melting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909541A (en) * | 2015-05-25 | 2015-09-16 | 秦皇岛玻璃工业研究设计院 | Glass melting furnace and glass melting method |
| CN111635237A (en) * | 2020-06-12 | 2020-09-08 | 赵华星 | Short-flow integrated preparation system for fused ceramic particles |
-
2013
- 2013-08-12 CN CN201310349332.6A patent/CN104370440A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909541A (en) * | 2015-05-25 | 2015-09-16 | 秦皇岛玻璃工业研究设计院 | Glass melting furnace and glass melting method |
| CN111635237A (en) * | 2020-06-12 | 2020-09-08 | 赵华星 | Short-flow integrated preparation system for fused ceramic particles |
| WO2021248659A1 (en) * | 2020-06-12 | 2021-12-16 | 赵华星 | Short-process integrated preparation system for fused ceramic particle |
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Application publication date: 20150225 |