CN202692608U - Drying equipment for silicon powder waste processing - Google Patents
Drying equipment for silicon powder waste processing Download PDFInfo
- Publication number
- CN202692608U CN202692608U CN 201220361241 CN201220361241U CN202692608U CN 202692608 U CN202692608 U CN 202692608U CN 201220361241 CN201220361241 CN 201220361241 CN 201220361241 U CN201220361241 U CN 201220361241U CN 202692608 U CN202692608 U CN 202692608U
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- Prior art keywords
- vacuum
- drying equipment
- silica flour
- vacuum drier
- silicon powder
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- Expired - Fee Related
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Abstract
The utility model discloses drying equipment for silicon powder waste processing. The drying equipment is characterized by comprising a vacuum dryer, a condenser, a liquid storage tank and a vacuum unit which are connected in sequence, wherein the top and the bottom of the vacuum dryer are respectively provided with a feeding hole and a discharging hole, and a mechanical seal is arranged at the feeding hole and the discharging hole of the vacuum drier. The vacuum drier adopts a jacket heating manner and takes steam or heat conduction oil as a heating medium. A temperature probe and a stirring device are also arranged inside the vacuum drier. The vacuum unit comprises two stages of vacuum pumps, and the vacuum degree in the vacuum unit can reach 1kPa. The drying equipment is safe and reliable; processed silicon powder wastes can be conveniently sold as products and is convenient to store and transport and free of spontaneous combustion danger. According to the drying equipment, little cutting fluid can be adsorbed by the recovered silicon powder wastes can be recovered in the processing process, so that considerable economic benefits are achieved.
Description
Technical field
The utility model relates to a kind of drying equipment, is specifically related to a kind of drying equipment for solving waste mortar removal process silica flour waste disposal.
Background technology
When adopting line cutting technology processing crystalline silicon wafer, can produce a large amount of silicon powder particles, this silicon powder particle particle diameter is below 3 μ m, has very high surface energy, can react with water and air the long-time and easy spontaneous combustion of contact with air of the silica flour of high surface, thereby initiation fire.Have and report that domestic certain producer is because the silica flour spontaneous combustion has caused the loss more than 3,000 ten thousand.Existing mortar reclaims in the technique, and waste mortar is after the water dilution, and then reduced viscosity realizes separating of silica flour, silicon carbide abrasive and cutting liquid by centrifugal action.Wherein most of silica flour is taken as discarded object and loses, the remainder silica flour by with sodium hydroxide solution reaction remove.Produce a large amount of silica flours in this art production process, in storage, transportation, have disaster hidden-trouble.In addition, silicon powder surface absorption has a small amount of cutting liquid, if arbitrarily abandon, causes the wasting of resources on the one hand, causes on the other hand environmental pollution, and the value of silica flour itself is not utilized yet.
Summary of the invention
For the problems referred to above, the purpose of this utility model provides a kind of drying equipment for solving waste mortar removal process silica flour waste disposal, this drying equipment can make slowly release surface energy of silica flour waste material safety, remove the moisture in the silica flour, avoid the spontaneous combustion of silica flour waste material, and reclaim the cutting liquid of silica flour waste material absorption.
For addressing the above problem, the technical solution of the utility model is:
A kind of drying equipment for the silica flour waste disposal, it is characterized in that it comprises vacuum drier, condenser, fluid reservoir and the vacuum unit that links to each other successively, described vacuum drier top and bottom are respectively equipped with charging aperture and discharge port, and charging aperture and the discharge port of described vacuum drier are equipped with mechanical seal.
Described vacuum drier adopts the chuck mode of heating, with steam or conduction oil as heat medium.
Described vacuum drier inside is provided with temp probe, the on-line monitoring system temperature.
Described vacuum drier inside also is provided with agitating device, and the power transmission shaft of described agitating device adopts the mechanical seal mode.
Described vacuum unit comprises the two-stage vacuum pump, can make the interior vacuum of device reach 1kPa.
Owing to adopted technique scheme, the beneficial effects of the utility model are:
Silica flour waste material after the utility model is processed can be used as production marketing, does not have the autohemagglutination fever phenomenon, spontaneous combustion can not occur, can safety and environmental protection storing and transporting.Can reclaim a small amount of cutting liquid of silica flour waste material absorption in the processing procedure, recyclable 30-50kg cutting liquid per ton can produce considerable economic benefit.Vacuum drier described in the utility model two ends are provided with mechanical seal, can guarantee vacuum in the drying machine, have avoided superfine silica powder particle in the silica flour waste material in equipment and contact with air, the production process safety and environmental protection.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1. vacuum drier; 2. condenser; 3. fluid reservoir; 4. cutting liquid discharge line; 5. vacuum unit; 6. vacuum drier discharge port; 7. vacuum drying machine inlet capable; 8. vacuum drier steam (vapor) outlet; 9. heat medium entrance; 10. heat medium outlet.
The specific embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and by specific embodiment.
As shown in Figure 1, the utility model comprises vacuum drier 1, and the top of described vacuum drier 1 is provided with drying machine charging aperture 7, and the bottom is provided with drying machine discharge port 6; Described vacuum drier adopts the chuck mode of heating, as heat medium, comprises the heat medium entrance 9 of its bottom and the heat medium outlet 10 at top with steam or conduction oil.Described vacuum drier 1 inside is provided with temp probe, can be connected to line monitoring system.Described vacuum drier 1 overhead vapor outlet 8 is connected with condenser 2, enter fluid reservoir 3 after the material condensation in the described condenser 2, liquid is discharged by cutting liquid discharge line 4 after the described fluid reservoir 3 interior condensations, described fluid reservoir 3 tops connect vacuum unit 5, and control system pressure is below the 1kPa in described vacuum unit 5 courses of work.
The course of work of the present utility model is: adsorb the silica flour waste material of a small amount of cutting liquid after vacuum drying machine inlet capable 7 is put into vacuum drier 1, open vacuum unit 5, when arriving 1kPa, the system internal pressure begins later on heat drying silica flour waste material, the steam that produces in the vacuum desiccator 1 enters fluid reservoir 3 after entering condenser 2 condensations through steam (vapor) outlet 8 again, reclaim finally by crossing cutting liquid discharge line 4, concentration is 10%-20%, as the raw material reuse, the vacuum unit 5 that fluid reservoir 3 tops connect provides high vacuum environment for system.Silica flour waste material fine grained in the heat drying process is constantly reunited, steadily the release surface energy.Dried silica flour waste material draws off through vacuum drier discharge port 6, and below the temperature 50 C, particle meso-position radius 0.1mm no longer includes the spontaneous combustion risk.
Claims (5)
1. drying equipment that is used for the silica flour waste disposal, it is characterized in that it comprises vacuum drier, condenser, fluid reservoir and the vacuum unit that links to each other successively, described vacuum drier top and bottom are respectively equipped with charging aperture and discharge port, and charging aperture and the discharge port of described vacuum drier are equipped with mechanical seal.
2. the drying equipment for the silica flour waste disposal as claimed in claim 1 is characterized in that described vacuum drier adopts the chuck mode of heating, with steam or conduction oil as heat medium.
3. the drying equipment for the silica flour waste disposal as claimed in claim 1 is characterized in that described vacuum drier inside is provided with the temp probe of on-line monitoring system temperature.
4. the drying equipment for the silica flour waste disposal as claimed in claim 1 is characterized in that described vacuum drier inside also is provided with agitating device, and the power transmission shaft of described agitating device adopts the mechanical seal mode.
5. the drying equipment for the silica flour waste disposal as claimed in claim 1 is characterized in that described vacuum unit comprises the two-stage vacuum pump, can make the interior vacuum of device reach 1kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361241 CN202692608U (en) | 2012-07-25 | 2012-07-25 | Drying equipment for silicon powder waste processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361241 CN202692608U (en) | 2012-07-25 | 2012-07-25 | Drying equipment for silicon powder waste processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692608U true CN202692608U (en) | 2013-01-23 |
Family
ID=47548216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220361241 Expired - Fee Related CN202692608U (en) | 2012-07-25 | 2012-07-25 | Drying equipment for silicon powder waste processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202692608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705895A (en) * | 2013-08-07 | 2016-06-22 | 张贤智 | Food waste vacuum-drying disposal system |
| CN109307407A (en) * | 2018-11-13 | 2019-02-05 | 浙江永泉化学有限公司 | A kind of solid waste one drying system based on environmental protection |
-
2012
- 2012-07-25 CN CN 201220361241 patent/CN202692608U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705895A (en) * | 2013-08-07 | 2016-06-22 | 张贤智 | Food waste vacuum-drying disposal system |
| CN109307407A (en) * | 2018-11-13 | 2019-02-05 | 浙江永泉化学有限公司 | A kind of solid waste one drying system based on environmental protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20180725 |