CN104276745B - Method for strengthening hollow glass beads - Google Patents
Method for strengthening hollow glass beads Download PDFInfo
- Publication number
- CN104276745B CN104276745B CN201410598413.4A CN201410598413A CN104276745B CN 104276745 B CN104276745 B CN 104276745B CN 201410598413 A CN201410598413 A CN 201410598413A CN 104276745 B CN104276745 B CN 104276745B
- Authority
- CN
- China
- Prior art keywords
- hollow glass
- collector
- temperature
- water
- beads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/10—Forming beads
- C03B19/107—Forming hollow beads
- C03B19/1075—Forming hollow beads by blowing, pressing, centrifuging, rolling or dripping
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/10—Forming beads
- C03B19/1095—Thermal after-treatment of beads, e.g. tempering, crystallisation, annealing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Glass Compositions (AREA)
Abstract
A strengthening method of hollow glass microspheres, wherein the hollow glass microspheres form hollow spheres in the process of flame high-temperature airflow movement, comprises the following steps: (a) pre-cooling the hollow glass beads, and reducing the temperature of the hollow glass beads to be near the softening point of glass so as to shape the hollow glass beads; (b) sending the shaped hollow glass beads into a collector; and (c) spraying the mixture in the collector by intersecting with water mist, rapidly cooling and carrying out strengthening treatment. The invention aims to strengthen the hollow glass microspheres in the process of spheroidizing, foaming and collecting the glass microspheres, increase the hardness and compressive strength of the hollow glass microspheres and meet special requirements; the hollow glass microballoons after combustion and spheroidization are precooled to the temperature near the softening point and enter water mist for quenching and strengthening treatment so as to improve the hardness and the compressive strength of the hollow glass microballoons.
Description
Technical Field
The invention relates to treatment of hollow glass beads, in particular to strengthening treatment of the hollow glass beads by a water mist method.
Background
The hollow glass bead is a hollow sphere powder material with the diameter of several micrometers to several hundred micrometers and the specific gravity of less than 1g/cm < 3 >, and the main component of the hollow glass bead is borosilicate. At present, high-quality hollow glass beads are produced by a powder flame method, and the process comprises the steps of mixing glass raw materials with a specific formula, melting the mixture in a glass melting furnace, performing water quenching and crushing classification to prepare irregular powder with a certain particle size range and containing dissolved gas, burning and melting the irregular powder by high-temperature flame to release internal gas, foaming the irregular powder in high-temperature flame airflow, spheroidizing and hollowing the irregular powder, cooling and shaping the irregular powder, and collecting and sorting the irregular powder;
before the high-temperature airflow reaches the collector, the temperature of the high-temperature airflow must be reduced so as to reach the temperature which can be carried by the collector;
the existing cooling method is that in the process of running the microbeads along with high-temperature airflow, the microbeads are indirectly cooled in a water jacket pipe, the process is slow, the reinforcing effect of the microbeads cannot be achieved, the microbeads are easily adhered to the inner wall of a cooling sleeve, the more the microbeads are gathered, the cooling effect is seriously affected, and the microbeads must be cleaned regularly.
Disclosure of Invention
The invention aims to improve the compressive strength and hardness of the hollow glass bead and meet special requirements; the method solves the defects, improves the efficiency, reduces the cost, precools the hollow glass microspheres subjected to combustion and spheroidization to the temperature near the softening point, and carries out quenching treatment in water mist to enhance the hardness and the compressive strength of the hollow glass microspheres.
In order to achieve the above object, the present invention provides a method for strengthening hollow glass microspheres, which form hollow spheres during the movement of high temperature air flow, comprising the following steps: (a) pre-cooling the hollow glass beads to reduce the temperature of the hollow glass beads to be close to the softening point of glass so as to shape the hollow glass beads; (b) feeding the hollow glass microspheres at the softening point temperature into a collector; and (c) the hollow glass micro-beads are mixed with water mist in the collector and rapidly cooled.
In some embodiments, the hollow glass microspheres are pre-cooled by air cooling.
In some embodiments, the collector is connected with an upstream beading furnace through a pipeline, the downstream of the collector is connected with an exhaust fan, the suction force of the exhaust fan forms negative pressure, the high-temperature airflow of the hollow glass microspheres subjected to flame spheroidization foaming is sucked into the pipeline, and the hollow glass microspheres are pre-cooled in the pipeline through an air distribution cooling damper.
In some embodiments, the collector is a cylinder with a certain diameter and length, two ends of the collector are cylindrical cones, the collector comprises an air inlet side cylindrical cone and an air outlet side cylindrical cone, a water spray pipe and an atomizing spray nozzle are arranged in the collector, and a gas-water micro-bead separator is arranged in the collector.
In some embodiments, the cooling water from the cooling water circulation system enters the spray head inside the collector to spray a large amount of water mist to be combined with the high-temperature air flow of the hollow glass beads in the separator, and the temperature of the cooling water is in the temperature range of liquid water.
The invention mainly aims to increase the hardness and compressive strength of the hollow glass microspheres; precooling the hollow glass microspheres subjected to combustion spheroidization foaming to a temperature near the softening point for shaping, and quenching the hollow glass microspheres in water mist for strengthening treatment to increase the hardness and compressive strength of the hollow glass microspheres and meet special requirements; and the defects are overcome, the efficiency is improved, and the cost is reduced.
Drawings
The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a reinforcement method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an implementation of a strengthening method according to an embodiment of the invention;
FIG. 3 is an enlarged view of a portion a of FIG. 2;
FIG. 4 is a top view of a separator according to an embodiment of the invention; and
FIG. 5 shows the direction of water discharge and the direction of floating bead movement.
Detailed Description
The invention will be described in more detail hereinafter with reference to the accompanying drawings of specific embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring now to fig. 1, a method for strengthening hollow glass microspheres according to an embodiment of the present invention is described in detail. The hollow glass bead raw material powder forms a hollow sphere in the flame high-temperature airflow movement process.
In the step S101, the hollow glass microsphere powder raw material is spheroidized and foamed in flame high-temperature airflow to form hollow microspheres, and the hollow microspheres move to the direction of a collector in a pipeline along with the high-temperature airflow;
in step S102, the hollow glass beads are pre-cooled to a temperature near the glass softening point, so that the hollow glass beads are shaped. Pre-cooling the hollow glass beads by air cooling. The collector is connected with an upstream beading furnace through a pipeline, the downstream of the collector is connected with an exhaust fan through a pipeline, the suction force of the exhaust fan forms negative pressure so as to suck the hollow glass beads into the pipeline, and the hollow glass beads are pre-cooled in the pipeline through an air distribution cooling air door.
In step S103, the shaped hollow glass beads are sent to a collector. The collector is a cylinder with a certain diameter and length, two ends of the collector are cylindrical cones, the collector comprises an air inlet side cylindrical cone and an air outlet side cylindrical cone, and a water spray pipe, an atomizing nozzle and a gas-water micro-bead separator are arranged inside the collector.
In step S104, the hollow glass beads are rapidly cooled in the collector. Cooling water from a cooling water circulation system enters a spray head inside the collector so as to spray a large amount of water mist, and the water mist is intersected with the hollow glass beads in the separator, and the temperature of the cooling water mist is within the liquid water temperature range.
The atomized cooling water of the invention can be water, brine, or other liquid cooling media, such as sodium chloride, potassium nitrate, sodium nitrate, potassium nitrite, sodium nitrite and the like, and the brine is mixed among the atomized cooling water and the brine according to a certain proportion.
Referring now to FIGS. 2-5, an example of a strengthening method according to an embodiment of the invention will be described in detail.
As shown in fig. 2 and 3, the glass powder raw material is combusted through the balling furnace 1, the flame melts the glass powder raw material and releases the dissolved gas inside, the glass foams, the particle melt forms a hollow sphere in the high-temperature airflow movement process due to the surface tension, negative pressure is formed along with the suction force of the fan 25, the particle melt is sucked into the conveying pipeline 2, pre-cooled through the air distribution cooling air door a, the temperature is reduced to be near the softening point of the glass, and the particle melt enters the collector after being shaped; the collector 4 is a cylinder with a certain diameter and length, two ends of the collector are composed of cylindrical cones, an air inlet side cylindrical cone 3 and an air outlet side cylindrical cone 8, a water spray pipe and an atomizing nozzle 5 are arranged in the collector, and the collector is composed of a gas-water micro-bead separator b; cooling water 6 from a cooling water circulation system enters a spray head 5 in the collector to spray a large amount of water mist, the water mist and high-temperature gas are mixed in a separator b, the diameter of the collector is large, the heat exchange of water and air is fast, the temperature is sharply reduced, the micro-beads are rapidly cooled, the strength is enhanced, the volume of the high-temperature gas is reduced, the flow speed is rapidly reduced, the micro-beads and water droplet mist drops move in a curve in the separator b (see figure 4) and fall along with water flow after meeting atomized water droplets and wet walls; the lower part of the collector keeps a certain water level, and the micro beads and floating beads under the water mist float on the water surface and sink with large specific gravity; the floating beads move downwards and towards the direction of the cone at the air outlet side under the action of wind and water flow, enter a part c (shown as a section of a-A in figure 5) which is contracted and gathered behind the cone, enter a floating bead and cooling water outlet 26 along with the movement of water flow, pass through a valve 17 and reach a floating bead collecting barrel 18; the floating bead collecting barrel 18 is internally provided with a filter bag 20, the floating beads 19 in the filter bag, hot water enters a water-sealed water pool 22, and the water pool 22 keeps constant water level; hot water is sent into a cooling water circulation system by a water pump through a hot water pipe 24, and a drain pipe at the lower end of the floating bead collecting barrel 18 is connected with a fan through a valve 21.
Sinking the sinking beads 10 to the water bottom, entering a sinking bead settling tank 15 through a pipeline and a valve 12, closing the valve 12 after accumulating to a certain degree, opening a flushing valve 14, and discharging through a discharge valve 13; the settling tank is then filled with clear water, valves 13, 14 are closed, valve 12 is opened and the next cycle is continued.
In fig. 3, the air distribution cooling damper is shown, because of the draft of the fan, the part a is negative pressure, and the part a4 can move up and down to adjust the air intake of the air a3, so that the high-temperature air can be initially cooled to the temperature near the softening point of the hollow glass beads.
The invention mainly aims to increase the hardness and the compressive strength of the hollow glass microspheres; precooling the hollow glass microspheres subjected to combustion spheroidization foaming to a temperature near the softening point for shaping, and quenching the hollow glass microspheres in water mist for strengthening treatment to increase the hardness and compressive strength of the hollow glass microspheres and meet special requirements; and the defects are overcome, the efficiency is improved, and the cost is reduced.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. The technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention are all within the scope of protection defined by the claims.
Claims (5)
1. A method for strengthening hollow glass microspheres, wherein the hollow glass microspheres form hollow spheres in the process of flame high-temperature airflow movement, is characterized by comprising the following steps:
(a) pre-cooling the hollow glass beads, and reducing the temperature of the hollow glass beads to be near the softening point of glass so as to shape the hollow glass beads;
(b) sending the shaped hollow glass beads into a collector;
(c) and the hollow glass micro-beads are mixed with spraying water mist in the collector and rapidly cooled to strengthen the hollow glass micro-beads.
2. The strengthening method according to claim 1, wherein the hollow glass microspheres are pre-cooled by air cooling.
3. The strengthening method according to claim 1, wherein the collector is connected to an upstream beading furnace through a pipe, and is connected downstream to a blower, and wherein the suction force of the blower forms a negative pressure to suck the hollow glass microspheres into the pipe, and wherein the pipe is pre-cooled by an air distribution cooling damper.
4. The method of claim 1, wherein the collector is a cylinder with a certain diameter and length, and has two ends formed by cylindrical cones, including an air inlet side cylindrical cone and an air outlet side cylindrical cone, and a water spraying pipe and an atomizing nozzle, and a gas-water micro-bead separator.
5. The strengthening method of claim 4, wherein the cooling water from the cooling water circulation system enters the internal spray head of the collector to spray a large amount of water mist, and the water mist is combined with the hollow glass beads in the collector under the state of high temperature just shaped to carry out heat exchange, so that the temperature of the hollow glass beads is sharply reduced from the temperature near the softening point to the water temperature, thereby achieving the strengthening purpose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598413.4A CN104276745B (en) | 2014-10-30 | 2014-10-30 | Method for strengthening hollow glass beads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598413.4A CN104276745B (en) | 2014-10-30 | 2014-10-30 | Method for strengthening hollow glass beads |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104276745A CN104276745A (en) | 2015-01-14 |
| CN104276745B true CN104276745B (en) | 2022-09-09 |
Family
ID=52252160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410598413.4A Active CN104276745B (en) | 2014-10-30 | 2014-10-30 | Method for strengthening hollow glass beads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104276745B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242302B (en) * | 2016-08-04 | 2019-11-15 | 陕西科技大学 | A kind of preparation method of high-strength glass microballon |
| CN110240389A (en) * | 2019-07-17 | 2019-09-17 | 张凯 | Grinding bead baking furnace and its production technology for firing grinding bead |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1126033A (en) * | 1978-08-28 | 1982-06-22 | Leonard B. Torobin | Method for compressing gaseous materials in a contained volume |
| WO2008069777A1 (en) * | 2006-12-04 | 2008-06-12 | Savannah River Nuclear Solutions, Llc | Apparatus and process to enhance the uniform formation of hollow glass microspheres |
| US7900474B2 (en) * | 2008-08-14 | 2011-03-08 | Beck Warren R | Hollow glass microspheres comprising selenium oxide and method of making thereof |
| CN103249684B (en) * | 2010-12-20 | 2016-03-30 | 3M创新有限公司 | Hollow microspheres and the method preparing hollow microspheres |
| CN102320743B (en) * | 2011-09-29 | 2013-07-31 | 蚌埠玻璃工业设计研究院 | High strength aluminosilicate hollow glass microsphere and preparation method thereof |
| CN103979796B (en) * | 2014-05-19 | 2016-08-24 | 白银金奇化工科技有限公司 | A kind of high intensity hollow glass micropearl and preparation method thereof |
-
2014
- 2014-10-30 CN CN201410598413.4A patent/CN104276745B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104276745A (en) | 2015-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104310762B (en) | Method for collecting and sorting hollow glass beads | |
| CN107952292B (en) | Flux-adjustable Venturi-cyclone coupling type efficient demisting condenser | |
| CN104624002A (en) | Waste gas treatment method | |
| CN104276745B (en) | Method for strengthening hollow glass beads | |
| CN107551737B (en) | A kind of coal breakage tower spiral atomization blowing and drawing type dust-extraction unit | |
| JP4668751B2 (en) | Powder manufacturing method | |
| CN104445885B (en) | Water mist treatment method for hollow glass beads | |
| CN105536423A (en) | Smoke gas PM2.5 (particulate matter 2.5) removing device and process of coal burning boiler | |
| CN101893390B (en) | Sand protecting and dust removing device for cooling tower | |
| CN105999976A (en) | Flue gas depth dedusting defogging water-saving unit and device composed thereby | |
| CN105561768A (en) | Method for recycling arsenic from nonferrous smelting flue gas | |
| CN105417937A (en) | Device for preparing hollow glass beads | |
| CN103990369A (en) | Turbulence aeration tower | |
| CN202122894U (en) | Efficient liquid-surface micro-division desulfurizing and dedusting device | |
| CN206996146U (en) | A kind of novel environment friendly shaft furnace | |
| TW202106781A (en) | Multi-tube type cracking system for continuously feeding waste plastics achieving rapid cracking benefits of continuous feeding and continuous discharging | |
| CN201692763U (en) | Improved desulfurization tower | |
| CN204211636U (en) | The intensifying device of hollow glass micropearl | |
| CN204281548U (en) | Hollow glass micropearl water smoke treatment unit | |
| CN204417321U (en) | The collection sorting unit of hollow glass micropearl | |
| CN204723967U (en) | Purification of air dedusting blowdown cleaning device | |
| CN205501110U (en) | Device of preparation hollow glass microballon | |
| CN203754745U (en) | Blast furnace coal gas gravity dust collector with cooling effect | |
| CN109135841B (en) | Spray alkali washing tower | |
| CN208809704U (en) | A kind of exhaust gas apparatus for treating cooking fume |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |