CN201803586U - Energy-saving device of coal dehydration system - Google Patents
Energy-saving device of coal dehydration system Download PDFInfo
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- CN201803586U CN201803586U CN2010205370360U CN201020537036U CN201803586U CN 201803586 U CN201803586 U CN 201803586U CN 2010205370360 U CN2010205370360 U CN 2010205370360U CN 201020537036 U CN201020537036 U CN 201020537036U CN 201803586 U CN201803586 U CN 201803586U
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- dewatering system
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Abstract
The utility model relates to an energy-saving device of a coal dehydration system, which is used for realizing cyclic utilization of steam used in the coal dehydration process, and comprises a steam energy accumulator, an intake manifold, an exhaust manifold and two coal treatment tanks, wherein the coal treatment tanks are respectively provided with an intake tube and an exhaust tube, the steam energy accumulator is connected with the intake manifold, the intake manifold is connected with the intake tubes respectively, the exhaust manifold is connected with the exhaust tubes respectively, and a steam delivery pump for warming up and pressurizing gas is arranged between the exhaust manifold and the intake manifold. The energy-saving device has simple structure, consumption of steam and water resources are greatly reduced, and the use cost of the coal dehydration device is lowered.
Description
Technical field:
The utility model relates to the device that a kind of saving utilizes steam, relates in particular to the energy saver in a kind of coal dehydration technique field.
Background technology:
Similar flash method one class, be in material processed process medium, that in pressure vessel, carry out with steam, can only some place coal or other substance to be processed in the internal capacity of pressure vessel, the ratio of its shared total measurement (volume) is called as dischargeable capacity, then be full of steam in the space outside dischargeable capacity, processed material absorbs heat from steam on every side required to satisfy processing.After processing procedure finished, the energy that steam contained of discharging in the jar decreased, and these steam are called as exhaust steam.
At present, some international and domestic similar devices adopt two kinds of methods usually when treating used steam exhaust steam, and first kind is with its condensation, filtration, through the reboiler vaporization, and then utilizes again.Second kind is directly to discharge in atmosphere.
In condensation process, need to use clean recirculated cooling water that steam is carried out condensation, after finishing heat exchange, recirculated cooling water will enter the cooling tower cooling, has portion of water and evaporates, and causing whole system is the system of a consume water resources generally, in addition, in condensation process, and, all need quite a few energy of additive decrementation in the reboiler vaporescence.Same, in line not only having wasted energy but also waste water resource also pollutes atmosphere simultaneously in atmosphere.
Because above-mentioned power consumption, water consumption two aspects, influenced that to utilize flash method that coal is carried out dehydration method also be the area, the Inner Mongol of water-deficient area and applying of other water-deficient areas in China main brown coal place of production.
The utility model content:
One of the technical problems to be solved in the utility model is the deficiency that overcomes above-mentioned prior art, and a kind of energy saver of coal dewatering system is provided, and it not only has simple in structure, and operation and maintenance is convenient, and energy utilization rate height, energy-conservation joint vapour are effective.
The energy saver of a kind of coal dewatering system that provides according to the utility model, comprise steam energy storage device, inlet manifold, exhaust main, and at least two coal process tanks, described coal process tank is respectively arranged with air inlet pipe, blast pipe, described steam energy storage device is connected with the inlet manifold, described inlet manifold is connected respectively with described air inlet pipe, and described exhaust main is connected respectively with described blast pipe.
The energy saver of a kind of coal dewatering system that provides according to the utility model also has following attached technical characterictic:
Described inlet manifold is connected by valve with exhaust main.
Between described exhaust main and described inlet manifold, be provided with the supplied gas pressurized vapor delivery pump of heating, described exhaust main is connected with the low-pressure gas inlet of described steam delivery pump, described steam carries delivery side of pump to be connected with described inlet manifold, also is provided with pressurized gas inlet.
Described steam delivery pump is two or more.
Described steam delivery pump is the injecting type heat pump.
When beginning from a coal process tank during to another coal process tank steam discharge, because both sides pressure reduction is bigger, do not need to start the injecting type heat pump, when both sides pressure reduction in the steam discharge process is reduced to when be fit to starting the injecting type heat pump, close the valve on the pipeline that directly is connected between blast pipe and the air inlet pipe, start the injecting type heat pump simultaneously, until reaching desired technological parameter.
Be respectively arranged with valve on described blast pipe and the air inlet pipe.
Described coal process tank is three.
Described coal process tank is four.
The energy saver of the coal dewatering system that provides according to the utility model, overall structure is simple, and is cheap, alleviate the enterprise investment risk, simultaneously, fault rate is low, and user's use cost reduces, in addition, because the recycling of steam causes system to reduce the heat discharging in the system, make the heat energy utilization rate of system maximize, promptly alleviated user's energy expenditure, reduced pollution again environment; Do not need to be provided with separately the circulating cooling system in the conventional design, the use of having saved cooling water makes native system have good water-saving result.
Description of drawings:
The schematic diagram of the energy saver of the coal dewatering system that provides according to the utility model is provided Fig. 1.
The specific embodiment:
Referring to Fig. 1, embodiment when present embodiment is used for flash method coal being dewatered.
Comprise steam energy storage device 1 according to what the utility model provided, the inlet manifold 2, exhaust main 3, three coal process tank 4A, 4B, coal process tank 4A, 4B is respectively arranged with air inlet pipe and blast pipe, steam energy storage device 1 is connected with inlet manifold 2, inlet manifold 2 and coal process tank 4A, the air inlet pipe of 4B connects respectively, exhaust main 3 and coal process tank 4A, the 4B blast pipe connects respectively, inlet manifold 2, coal process tank 4A, the blast pipe of 4B, air inlet pipe is respectively arranged with valve, also be provided with valve in the management that between inlet manifold 2 and exhaust main 3, directly is connected, use for control operation.
Between exhaust main 3 and inlet manifold 2, be provided with injecting type heat pump 5, exhaust main 3 is connected with the low-pressure gas inlet of injecting type heat pump 5, the outlet of injecting type heat pump 5 is connected with inlet manifold 2, the nozzle of injecting type heat pump 5 is connected with overheated steam pipe 6 from boiler, be used for and enter inlet manifold 2 again, periodic duty after the weary gas pressurization in the exhaust main 3.Wherein, injecting type heat pump 3 can in the present embodiment, use one for one or more.
Coal process tank in the utility model is two, three or four, also can be a plurality of, and operation principle is the same.
Concrete operations are as follows:
Initial state is: as hypothesis is to be in the wait emptying state at process tank 4A, and process tank 4B is in the wait pressurized state, its operating process is as follows: the phase I, steam energy storage device 1 by inlet manifold 2 and air inlet pipe to the coal process tank 4A pressurization of heating, when the temperature and pressure of coal process tank 4A reaches setting value, pressurization stops to heat, because the pressure in the process tank 4A is higher, and the pressure in the process tank 4B is environmental pressure (standard atmospheric pressure), can be with valve 72, valve 73 and valve 77 are opened simultaneously, other valve closing, owing to there is bigger pressure reduction, the exhaust steam in the process tank 4A is flowed in process tank 4B fast by blast pipe and exhaust main 3.
Second stage, pressure reduction in two coal process tanks is lower than a setting value, when causing the gas flow reduction in the pipeline, start injecting type heat pump 5, while valve-off 77, the superheated steam that transports when the overheated steam pipe 6 from boiler enters the nozzle of injecting type heat pump 5, bring the low-pressure steam in the exhaust main 3 into the injecting type heat pump, after the mixing, low-pressure steam pressure raises, enter into the air inlet pipe of inlet manifold 2 and coal process tank 4B, the pressure in process tank 4B reaches the pressure of uncapping of environmental pressure or setting.
The foregoing description is the usefulness of explanation the utility model only, and is not to be to restriction of the present utility model, and the those of ordinary skill in relevant field on this basis, can also be made numerous variations and improvement project, and not break away from spirit of the present utility model and protection domain.In these claims, wish to have comprised all these changes and the improvement project that meets the utility model essence and scope.
Claims (8)
1. the energy saver of a coal dewatering system, it is characterized in that: comprise steam energy storage device, inlet manifold, exhaust main, and at least two coal process tanks, described coal process tank is respectively arranged with air inlet pipe, blast pipe, described steam energy storage device is connected with the inlet manifold, described inlet manifold is connected respectively with described air inlet pipe, and described exhaust main is connected respectively with described blast pipe.
2. the energy saver of coal dewatering system according to claim 1 is characterized in that: described exhaust main is connected by valve with the inlet manifold.
3. the energy saver of coal dewatering system according to claim 1, it is characterized in that: between described exhaust main and described inlet manifold, be provided with the supplied gas pressurized vapor delivery pump of heating, described exhaust main is connected with the low-pressure gas inlet of described steam delivery pump, described steam carries delivery side of pump to be connected with described inlet manifold, also is provided with pressurized gas inlet.
4. the energy saver of coal dewatering system according to claim 3 is characterized in that: described steam delivery pump is two or more.
5. the energy saver of coal dewatering system according to claim 4 is characterized in that: described steam delivery pump is the injecting type heat pump.
6. according to the energy saver of any described coal dewatering system of claim 1-5, it is characterized in that: be respectively arranged with valve on described blast pipe and the air inlet pipe.
7. the energy saver of coal dewatering system according to claim 6 is characterized in that: described coal process tank is three.
8. the energy saver of coal dewatering system according to claim 7 is characterized in that: described coal process tank is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205370360U CN201803586U (en) | 2010-09-21 | 2010-09-21 | Energy-saving device of coal dehydration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205370360U CN201803586U (en) | 2010-09-21 | 2010-09-21 | Energy-saving device of coal dehydration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803586U true CN201803586U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205370360U Expired - Fee Related CN201803586U (en) | 2010-09-21 | 2010-09-21 | Energy-saving device of coal dehydration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803586U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697683A (en) * | 2013-12-16 | 2014-04-02 | 广西柳州浚业科技有限公司 | Adjusting and controlling system of heated air circulation drum type dryer with high temperature heat pump |
| CN109795019A (en) * | 2019-01-14 | 2019-05-24 | 天津大学 | Air-entrained concrete building block still kettle overbottom pressure is exhaust heat stepped to utilize method and device |
-
2010
- 2010-09-21 CN CN2010205370360U patent/CN201803586U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697683A (en) * | 2013-12-16 | 2014-04-02 | 广西柳州浚业科技有限公司 | Adjusting and controlling system of heated air circulation drum type dryer with high temperature heat pump |
| CN103697683B (en) * | 2013-12-16 | 2016-02-24 | 鲁东大学 | Hot air circulation high temperature heat pump roller dryer regulator control system |
| CN109795019A (en) * | 2019-01-14 | 2019-05-24 | 天津大学 | Air-entrained concrete building block still kettle overbottom pressure is exhaust heat stepped to utilize method and device |
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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 |
Granted publication date: 20110420 Termination date: 20150921 |
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| EXPY | Termination of patent right or utility model |