CN203173823U - Silicon carbide powder drying waste heat recovering device - Google Patents
Silicon carbide powder drying waste heat recovering device Download PDFInfo
- Publication number
- CN203173823U CN203173823U CN201320144459XU CN201320144459U CN203173823U CN 203173823 U CN203173823 U CN 203173823U CN 201320144459X U CN201320144459X U CN 201320144459XU CN 201320144459 U CN201320144459 U CN 201320144459U CN 203173823 U CN203173823 U CN 203173823U
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- Prior art keywords
- silicon carbide
- heat
- powder
- carbide micro
- heat exchanging
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a silicon carbide powder drying waste heat recovering device. The silicon carbide powder drying waste heat recovering device comprises a feeding passage which is communicated with a rotary kiln for drying silicon carbide powder, wherein the discharging port of the feeding passage is communicated with a heat exchanging chamber, the feeding passage is provided with a feeding device for sending the silicon carbide powder discharged from the rotary kiln into a heat exchanging chamber, the heat exchanging chamber is communicated with an entrained-flow bed air supplying device which is used for inputting fluidized gas into the heat exchanging chamber so as to fluidize the silicon carbide powder, a heat exchanging pipe for absorbing the heat of the fluidized silicon carbide powder is arranged in the heat exchanging chamber, and the heat exchanging pipe is provided with an inlet and an outlet, for the heat exchanging medium to enter and exit. The fluidized silicon carbide powder exchanges the heat with the heat exchanging medium flowing by the heat exchanging pipe, so that the silicon carbide powder can be rapidly cooled, the heat exchanging medium flowing by the heat exchanging pipe can be heated, the heat carried by the heat exchanging medium is used for the production or life, the waste heat after drying the silicon carbide powder can be recovered, and the energy can be efficiently saved.
Description
Technical field
The utility model belongs to silicon carbide micro-powder recovery technology field, is specifically related to a kind of silicon carbide micro-powder drying waste heat retrieving arrangement.
Background technology
When adopting steel wire that silicon chip is carried out the line cutting, need to use the cutting mortar that is constituted by cutting liquid and silicon carbide, the cutting mortar can cool off steel wire on the one hand, also improves the cutting force of steel wire on the other hand.For reducing production costs, many waste mortar after using is recycled, to reclaim cutting liquid and silicon carbide micro-powder wherein, wherein, reclaim the resulting solid of silicon carbide micro-powder and be recovery sand.When the cutting liquid in the waste mortar and silicon carbide are recycled, at first make waste mortar pass through equipment for separating liquid from solid, to cut liquid separates with recovery sand, make then and reclaim sand successively by pickler, alkaline cleaner, water washing device, drying unit and sorting equipment, obtain qualified silicon carbide micro-powder at last.
At present the rotary kilns that adopt are dried silicon carbide micro-powder more, and the drop temperature of rotary kiln reaches 150 °, adopt uncovered charge mouth collection material after, treat that micro mist naturally cools to after 40 °, enters next procedure again.
But the uncovered bucket of above-mentioned employing is collected micro mist and is made its naturally cooling temperature reduction way have more defective, naturally cooling is comparatively slow on the one hand, the waste heat of the silicon carbide after the oven dry does not use on the other hand, and heat is dissipated in the air, has wasted heat.
The utility model content
The purpose of this utility model provides a kind of silicon carbide micro-powder drying waste heat retrieving arrangement that utilizes heat transferring medium that the silicon carbide micro-powder waste heat is reclaimed.
For achieving the above object, the technical scheme of silicon carbide micro-powder drying waste heat retrieving arrangement provided by the utility model is: silicon carbide micro-powder drying waste heat retrieving arrangement, comprise the feeding channel that is communicated with for the rotary kiln with the oven dry silicon carbide micro-powder, the discharge port of feeding channel is communicated with heat exchange chamber, feeding channel is provided with sends the silicon carbide micro-powder of discharging from rotary kiln into pay-off the heat exchange chamber, heat exchange chamber be communicated with for to heat exchange chamber inlet flow oxidizing gases so that the fluidised fluidized-bed air feeder of silicon carbide micro-powder, be provided with the heat exchanger tube for the heat of absorption fluids silicon carbide micro-powder in the heat exchange chamber, heat exchanger tube has import and the outlet for the heat transferring medium turnover.
Described waste-heat recovery device comprises also that for corresponding with rotary kiln to collect the seal closure of the silicon carbide micro-powder of discharging from rotary kiln, the outlet of seal closure is communicated with feeding channel.
Described heat exchanger tube is netted or spiral.
Described pay-off is spiral feeding machine.
Usefulness of the present utility model is: comprise the feeding channel that is communicated with for rotary kiln in the silicon carbide micro-powder waste-heat recovery device provided by the utility model, and feeding channel is communicated with heat exchange chamber, be provided with pay-off at feeding channel, during use, silicon carbide micro-powder after the oven dry that will discharge from rotary kiln by feeding channel and pay-off is conveyed in the heat exchange chamber, by fluidized-bed air feeder inlet flow oxidizing gases in the heat exchange chamber, fluidizing agent suspends the micro mist in the heat exchange chamber, seethe to be fluidization, simultaneously, in heat exchanger tube, feed heat transferring mediums such as cold water or cold wind, the heat transferring medium that flows through in fluidised silicon carbide micro-powder and the heat exchanger tube carries out heat exchange, like this, realized the quick cooling to silicon carbide micro-powder on the one hand, on the other hand, can the heat transferring medium that flow through in the heat exchanger tube be heated, then heat that heat transferring medium is entrained for the production of or life, the energy is effectively saved in waste heat recovery after realization is dried silicon carbide micro-powder.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of silicon carbide micro-powder drying waste heat retrieving arrangement provided by the utility model.
Embodiment
As shown in Figure 1, a kind of embodiment of silicon carbide micro-powder drying waste heat retrieving arrangement, waste-heat recovery device among this embodiment comprises the feeding channel 9 that is communicated with for the discharge port with rotary kiln 1, the discharge port of feeding channel 9 is communicated with heat exchange chamber 5, concrete, discharge port with rotary kiln 1 is corresponding to be communicated with rotary kiln 1 with the seal closure 2 of collecting the silicon carbide micro-powder of discharging from rotary kiln by being used for for feeding channel 9, sealing cover 2 is the labyrinth seal cover, the labyrinth import of labyrinth seal cover is corresponding with the discharge port of rotary kiln 1, its labyrinth outlet is communicated with feeding channel 9, also be provided with on feeding channel 9 silicon carbide micro-powder of discharging from the discharge port of rotary kiln is sent into pay-off 3 in the heat exchange chamber, this pay-off 3 is spiral feeding machine.Heat exchange chamber 5 be communicated with for to heat exchange chamber 5 inlet flow oxidizing gases so that the fluidised fluidized-bed air feeder of silicon carbide micro-powder, be provided with the heat exchanger tube 6 for the heat of absorption fluids silicon carbide micro-powder in the heat exchange chamber, heat exchanger tube 6 shape in the shape of a spiral distributes, and heat exchanger tube 6 has import and the outlet for heat transferring medium such as cold water turnover.
In the present embodiment, collected loss of material and the environmental pollution that effectively to avoid micro mist to fly upward like this bringing by seal closure 2 from the silicon carbide micro-powder that the discharge port of rotary kiln 1 is discharged.
During use, silicon carbide micro-powder is heating, drying in rotary kiln 1, discharge from the discharge port of rotary kiln 1 then, silicon carbide micro-powder is collected by the seal closure 2 at the discharge port place that is installed in rotary kiln 1, is transported in the heat exchange chamber 5 by feeding device 3 by feeding channel 9 then.By fluidized-bed air feeder inlet flow oxidizing gases in the heat exchange chamber 5, fluidizing agent makes the micro mist in the heat exchange chamber suspend, seethe, simultaneously, in heat exchanger tube 6, feed cold water, the cold water that flows through in the silicon carbide micro-powder that seethes and the heat exchanger tube 6 carries out heat exchange, like this, realized the quick cooling to silicon carbide micro-powder on the one hand, on the other hand, can the water that flow through in the heat exchanger tube be heated, hot water in the heat exchanger tube is used for reclaiming the operation of sand washing sand, can realizes the waste heat recovery after the silicon carbide micro-powder oven dry.
In the present embodiment, the heat transferring medium that flows through in heat exchanger tube is cold water, in other embodiments, also can in heat exchanger tube, import cold wind as heat transferring medium, at this moment, the hot blast of exporting from the exit of heat exchanger tube can be used in production or the life equally, to realize the heat recovery after the silicon carbide micro-powder oven dry.
In the present embodiment, by division plate heat exchange chamber and fluidising chamber are separated, in other embodiments, also can be used air grill to replace the division plate that is evenly equipped with through hole.In other embodiments, the fluidized-bed air feeder can be wind direction or other fluidizers commonly used with grid.
In the present embodiment, heat exchanger tube is shape in the shape of a spiral, and in other embodiments, heat exchanger tube also can be netted being arranged in the exchange type.
In the present embodiment, the discharge port of rotary kiln is provided with for the seal closure of collecting micro mist, realizes the transition of rotary kiln and feeding channel by seal closure.In other embodiments, also can save seal closure, and feeding channel directly is connected the discharge port place of rotary kiln.
Claims (4)
1. silicon carbide micro-powder drying waste heat retrieving arrangement, it is characterized in that: comprise the feeding channel that is communicated with for the rotary kiln with the oven dry silicon carbide micro-powder, the discharge port of feeding channel is communicated with heat exchange chamber, feeding channel is provided with sends the silicon carbide micro-powder of discharging from rotary kiln into pay-off the heat exchange chamber, heat exchange chamber be communicated with for to heat exchange chamber inlet flow oxidizing gases so that the fluidised fluidized-bed air feeder of silicon carbide micro-powder, be provided with the heat exchanger tube for the heat of absorption fluids silicon carbide micro-powder in the heat exchange chamber, heat exchanger tube has import and the outlet for the heat transferring medium turnover.
2. silicon carbide micro-powder drying waste heat retrieving arrangement according to claim 1, it is characterized in that: described waste-heat recovery device comprises also that for corresponding with rotary kiln to collect the seal closure of the silicon carbide micro-powder of discharging from rotary kiln, the outlet of seal closure is communicated with feeding channel.
3. silicon carbide micro-powder drying waste heat retrieving arrangement according to claim 1 and 2, it is characterized in that: described heat exchanger tube is netted or spiral.
4. silicon carbide micro-powder drying waste heat retrieving arrangement according to claim 1 and 2, it is characterized in that: described pay-off is spiral feeding machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320144459XU CN203173823U (en) | 2013-03-27 | 2013-03-27 | Silicon carbide powder drying waste heat recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320144459XU CN203173823U (en) | 2013-03-27 | 2013-03-27 | Silicon carbide powder drying waste heat recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203173823U true CN203173823U (en) | 2013-09-04 |
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ID=49070556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320144459XU Expired - Fee Related CN203173823U (en) | 2013-03-27 | 2013-03-27 | Silicon carbide powder drying waste heat recovering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203173823U (en) |
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2013
- 2013-03-27 CN CN201320144459XU patent/CN203173823U/en not_active Expired - Fee Related
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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: 20130904 Termination date: 20160327 |