CN102809164B - Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant - Google Patents
Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant Download PDFInfo
- Publication number
- CN102809164B CN102809164B CN201210275065.8A CN201210275065A CN102809164B CN 102809164 B CN102809164 B CN 102809164B CN 201210275065 A CN201210275065 A CN 201210275065A CN 102809164 B CN102809164 B CN 102809164B
- Authority
- CN
- China
- Prior art keywords
- water
- dragveyer
- slag
- power plant
- overflow
- 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
Landscapes
- Paper (AREA)
Abstract
The invention relates to a slag water self-balancing heat exchange method of a water-cooled mechanical slag-removal system in a thermal power plant, and refers to the slag removals of fire coal powder boiler and the like, the hot slag and the heat transfer medium of the cooling water are adopted to satisfy effective pelletization and cooling to the hot slag in a water-cooled mechanical slag-removal system; a slag conveyor is in operation manners that the slag water cannot overflow and the water level is maintained, and external slag water processing systems are not used for cooling; the upper limit of the slag water temperature, which is regularly specified at 60, is maximally determined at 80 DEG C; the evaporation rate of the slag water is increased and the discharged heat is increased along the raise of the slag water temperature, and the hot slag is cooled to reach energy conservation; the mass balance of the slag water is realized through quantitative supplementing of water, the temperature of the slag water and the liquid level are controlled through an automatic monitoring control technique, the slag water cannot overflow, and the slag water is in a controllable self-balancing state; and the urgent water supplementing is carried out in an accident state that the temperature of the slag water exceeds 80 DEG C to quickly lower the temperature, the overflowed water is collected in an accident overflow pool, and can be recycled and used after the system is stable.
Description
[technical field]
The present invention relates to the deslagging technique fields such as pulverized coal fired boiler, particularly a kind of thermal power plant water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method.
[background technology]
At present, the cooling closed cycle method of operation that has cold pulp water overflow recycling recycling that mostly adopts of warm sludge when the deslagginves such as domestic and international pulverized coal fired boiler adopt water-cooled mechanical deslagging system, submerged slag conveyor is always in continuous overflow state, and guarantees that in dragveyer sink body, mixture temperature is not more than 60 ℃.Mainly contain following several mode:
Mode one: cold pulp water closed cycle adopts slag water cooler to carry out cooling.The first overflow of overflow water of submerged slag conveyor, to buffer tank, is delivered to automatic backwashing filter and slag water cooler by pulp water water circulating pump, delivers to the cold slag of submerged slag conveyor after cooling again.Board-like or the pipe heat exchanger of the general employing of slag water cooler of this mode, the recirculated water of use power plant or enclosed water are as cooling water.Which subject matter is that water tank is less than normal, and in water, dregginess is larger, and scum silica frost is easily collecting not, causes fouling of heat exchangers and plugging serious, and heat exchange efficiency cannot guarantee, operation maintenance amount is large, and that the cooling water inflow of heat exchanger requires is also larger, and power consumption is larger.
Mode two: cold pulp water closed cycle adopts mechanical force cooling column to carry out cooling.The first overflow of the overflow water of dragveyer, to overflow pond, is pumped to high-efficiency concentrator by overflow water, the draining after high-efficiency concentrator clarification by booster, be delivered to mechanical force cooling column cooling after, then send boiler room back to as the cooling water of submerged slag conveyor, recycle.Advantage is that water consumption is less, and pipeline is simple; Major defect is that equipment is more, operation slightly complicated, the problems such as the high and fouling of energy consumption.
Mode three: cold pulp water closed cycle adopts the nature type of cooling.Water body natural evaporation outside nature type of cooling dependence dragveyer shutoff door, heat dissipation of pipeline, gutter heat radiation and evaporation, thickener and pond heat radiation and evaporation, and the moisturizing of loss water reaches heat balance, which is a kind of mode that mode two is further simplified.
Slag-water slurry temperature is not more than the requirement of 60 ℃ from imported technology, and Current Domestic is outward all according to this boundary condition.
[summary of the invention]
The object of this invention is to provide a kind of thermal power plant water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, to address the above problem.
To achieve these goals, the present invention adopts following technical scheme:
A kind of thermal power plant water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method:
The oblique ascension section top of dragveyer is provided with chain flushing water valve and cooling water replenishment valve; Before, during and after in dragveyer horizontal segment upper groove body, be respectively provided with a liquid level gauge and a thermometer; Top, dragveyer horizontal segment rear portion is provided with emergency water compensating valve; During the operation of dragveyer chain flushing water valve, keep often opening, for chain, rinse; The front upper of the close oblique ascension section of dragveyer horizontal segment is provided with camera;
Two in three liquid level gauges reach low setting value, while reaching low water level, open electronic cooling water replenishment valve, two in three liquid level gauges reach high setting value, while reaching high water level, close electronic cooling water replenishment valve, control between the high-low water level of water level under the flood level of dragveyer and change, this process guarantees that dragveyer is without overflow;
When in three thermometers two reach 70 ℃-75 ℃, open cooling water replenishment valve, this process allows dragveyer to have the overflow of 10-20 minute, and the overflow water yield is less than 2t/h-5t/h; After being reduced to below 70 ℃, two temperature in three thermometers close water compensating valve;
When in three thermometers two reach more than 80 ℃, now opening immediately emergency water compensating valve forces cooling, when two temperature in three thermometers are reduced to 70 ℃-75 ℃, close emergency water compensating valve, this process allows dragveyer to have large flow overflow, and the overflow water yield is 40t/h-80t/h.
The present invention further improves and is: described dragveyer is the dragveyer of transition slag bucket structure or the dragveyer of direct insertion water seal board structure, low water level is arranged on transition slag bucket or the above 300mm-350mm place, direct insertion water seal board bottom that inserts dragveyer cell body, high water level is higher than low water level 200mm-600mm, and dragveyer flood level is higher than high water level 50mm.
The present invention further improves and is: the bearing of dragveyer is by sealing water-stop, and the sealing penstock that connects industry water is often opened for dragveyer bearing seal.
The present invention further improves and is: described dragveyer is the dragveyer of transition slag bucket structure, transition slag bucket top and boiler furnace junction are provided with water sealed tank, in water sealed tank, be located at some water sealed tank liquid level gauges, dragveyer comprises and according to the two position signal of water sealed tank liquid level gauge, to water sealed tank, carries out the electronic water compensating valve of moisturizing.
The present invention further improves and is: described dragveyer is the dragveyer of direct insertion water seal board structure, and direct insertion water seal board directly inserts in dragveyer cell body, and heat-insulation layer is established on direct insertion water seal board top.
The present invention further improves and is: dragveyer side is provided with the overflow pond of collecting dragveyer overflow water.
The present invention further improves and is: the sealing hydromining of dragveyer is with industry water as water source, and the waste water that dragveyer slagging-off cooling water and chain flushing water employing power plant processed is as water source.
The present invention further improves and is: the flowmeter that is respectively arranged with monitoring rate of water make-up on the female pipe in waste water water source that industry water water source and power plant processed;
The present invention further improves and is: dragveyer horizontal segment both sides arrange splash-back.
Compared with prior art, the present invention has the following advantages: the inventive method, the warm sludge while relating to the deslagging employing water-cooled mechanical deslagging systems such as pulverized coal fired boiler and the heat and mass of cooling water, meet warm sludge is carried out to effective granulation and cooling.Dragveyer adopt pulp water without overflow, maintain the water level method of operation, do not recycle outside pulp water treatment system and carry out cooling.Pulp water temperature breaks through 60 ℃ of upper limits of conventional system regulation, sets and is up to 80 ℃.With pulp water temperature, raise, pulp water evaporation rate increases, and taking away heat increases, the cooling conservation of energy that reaches of warm sludge; By quantitative water compensating, accomplish the mass balance of pulp water, rely on automatic monitoring technology processed to control pulp water temperature and liquid level, do not make pulp water excessive, pulp water is in controlled self-balancing state.When pulp water temperature occurs surpassing the accident condition of 80 ℃, open emergency water compensating and carry out fast cooling, overflow water is collected in accident overflow pond, recoverable after system stability.Owing to being provided with splash-back in dragveyer horizontal segment both sides, solved the dragveyer problem that high temperature pulp water spatters when high water level falls slag outward.Adopt the advantage of the inventive method to be, system simplification, safe and reliable, simple to operate, easily control, there is no pulp water treatment system, solved the problem that the interior fouling of water treatment system and accumulated slag are difficult to cleaning, operating cost is low, and construction costs is low.
[accompanying drawing explanation]
Fig. 1 is that the inventive method is for the schematic diagram of transition slag bucket structure dragveyer.
Fig. 2 is that the inventive method is for the schematic diagram of direct insertion water seal board structure dragveyer.
[specific embodiment]
In prior art, three kinds of heat exchange modes are in the situation that mixed water temperature is not more than 60 ℃, pulp water is burst limited with radiation evaporation capacity, the cooling gasification latent heat that does not make full use of pulp water of warm sludge, cold pulp water all needs to overflow continuously dragveyer, and to carry out outside auxiliary cooling, in order to overcome the deficiency of above-mentioned three kinds of pulp water circulatory systems, the inventive method provides water-cooled mechanical deslagging system cold pulp water self-balancing heat: any pulp water circulating treating system is not set and carries out external refrigeration, dragveyer adopts pulp water without overflow, maintain the water level method of operation, allow the operation over 60 ℃ of dragveyer water temperature.Through laboratory and field trial, find, when the quantity of slag is certain, dragveyer water temperature is greater than after 60 ℃, the corresponding increase of the evaporation rate of cold pulp water, and when water temperature is elevated to a certain degree with regard to the basicly stable no longer rising of getting off, now heat exchange reaches balance; In this process, utilize and automatically control surveillance technology, the consumption that supplements cold pulp water makes the water level in dragveyer relatively stable, maintain in certain scope, both meet boiler operatiopn seal request and also can adapt to quantity of slag variation within the specific limits, make cold pulp water not excessive, also just there is no outside pulp water circulating treating system.The present invention's simultaneously proposed to burst heat transfer theory of evaporation, radiation evaporation and natural evaporation, in the slag removing system transformation of several different conditions, obtained checking, during normal operation, slag-water slurry temperature is no more than 70 ℃, while blowing the abnormal runnings such as ash, slag-water slurry temperature is no more than 80 ℃, theoretical calculating is higher with operating index anastomose property, can meet the slag removing system needs of domestic and international most of power plant.Accident overflow pond is set near dragveyer for collecting the temporary impact impact of slagging scorification bulk slag on water level simultaneously, has protected the sanitary condition in dragveyer operation place.At dragveyer horizontal segment both sides installings splash-back, while preventing that high water level from falling slag, high temperature pulp water spatters outward.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to shown in Fig. 1, dragveyer 2 for transition slag bucket 1 structure, the sealing water of 3 moisturizings of transition slag bucket water sealed tank and dragveyer when mechanical seal (adopt without this water) adopts industry water as water source, and dragveyer slagging-off cooling water and chain flushing water adopt waste water that power plant processed as water source.When dragveyer chain flushing water valve 13 and 14 operation of sealing penstock, keep often opening, for chain, rinse and dragveyer bearing seal.Flowmeter 4 and 5 monitoring rate of water make-ups are set respectively on the female pipe in two management water source, tunnels.The electronic water compensating valve 6 of dragveyer water sealed tank opens and closes and carries out moisturizing control according to the two position signal of water sealed tank liquid level gauge 7, and water sealed tank is full of water always and guarantees water seal, before in dragveyer horizontal segment upper groove body, in, rear portion is established one group of three liquid level gauge 8 and is carried out level monitoring, one group of three thermometer 9 carries out pulp water temperature monitoring, it (is high water level or low water level that in three liquid level gauges 8 two reach high or low setting value, low water level is arranged on transition slag bucket or the above 300mm-350mm place, direct insertion water seal board bottom that inserts dragveyer 2 upper groove bodies, high water level is higher than low water level 200mm-600mm) time send high water level or low-water alarm signal, when in three liquid level gauges 8 two reach high setting value (high water level), the high water-level alarm interlocking of signals of liquid level is closed electronic cooling water replenishment valve 10, when in three liquid level gauges 8 two reach low setting value (low water level), the low-water alarm interlocking of signals of liquid level is opened electronic cooling water replenishment valve 10 and is carried out moisturizing, controlling water level (is between the high-low water level under flood level at the water level range of dragveyer 2 settings, flood level is higher than high water level 50mm) interior variation, this process guarantees that dragveyer is without overflow, when in three thermometers 9 two reach high setting value (high setting value is 70-75 ℃), open cooling water replenishment valve 10, it (is 10-20 minute in short-term that this process allows dragveyer 2 fraction overflow in short-term, fraction overflow refers to 2t/h-5t/h water), after being reduced to below 70 ℃, two temperature in three thermometers 9 close water compensating valve 10, in three thermometers 9 two reach high setting value (80 ℃) when above, the state of emergency that occurs falling large slag is described, now opening immediately emergency water compensating valve 11 forces cooling, when two temperature in three thermometers 9 are reduced to high setting value (70 ℃-75 ℃), close emergency water compensating valve 11, this process allows the large flow overflow of dragveyer (large flow overflow is 40t/h-80t/h water).Dragveyer 2 horizontal segments are provided with camera 12 near the front upper of oblique ascension section, can telemonitoring dragveyer liquid level and moisturizing situation, the other overflow pond of establishing of dragveyer, the overflow water occurring while collecting high water temperature state flows back to dragveyer with water pump by overflow water or directly enters power plant effluent sewer and recycles after system stability.The splash-back 15 that exceeds dragveyer horizontal segment upper groove body 200mm-500mm in dragveyer horizontal segment both sides installings, splash-back 15 is detachable, in the time of can preventing that dragveyer from falling slag, high temperature pulp water spatters outward, can maintain easily maintenance again.
As shown in Figure 2, for the dragveyer 2 of direct insertion water seal board 16 structures, water seal board 16 directly inserts in dragveyer cell body, and heat-insulation layer 17 is established on water seal board top, anhydrous sealing groove.The sealing water of dragveyer when mechanical seal (adopt without this water) adopts industry water as water source, and dragveyer slagging-off cooling water and chain flushing water adopt waste water that power plant processed as water source.When dragveyer chain flushing water valve 13 and 14 operation of sealing penstock, keep often opening, for chain, rinse and dragveyer bearing seal.Flowmeter 4 and 5 monitoring rate of water make-ups are set respectively on the female pipe in two management water source, tunnels.Before in dragveyer horizontal segment upper groove body, in, rear portion is established one group of three liquid level gauge 8 and is carried out level monitoring, one group of three thermometer 9 carries out pulp water temperature monitoring, it (is high water level or low water level that in three liquid level gauges 8 two reach high or low setting value, low water level is arranged on transition slag bucket or the above 300mm-350mm place, direct insertion water seal board bottom that inserts dragveyer 2 cell bodies, high water level is higher than low water level 200mm-600mm) time send high water level or low-water alarm signal, when in three liquid level gauges 8 two reach high setting value (high water level), the high water-level alarm interlocking of signals of liquid level is closed electronic cooling water replenishment valve 10, when in three liquid level gauges 8 two reach low setting value (low water level), the low-water alarm interlocking of signals of liquid level is opened electronic cooling water replenishment valve 10 and is carried out moisturizing, controlling water level (is between the high-low water level under flood level at the water level range of dragveyer 2 settings, flood level is higher than high water level 50mm) interior variation, this process guarantees that dragveyer is without overflow, when in three thermometers 9 two reach high setting value (high setting value is 70-75 ℃), open cooling water replenishment valve 10, it (is 10-20 minute in short-term that this process allows dragveyer 2 fraction overflow in short-term, fraction overflow refers to 2t/h-5t/h water), after being reduced to below 70 ℃, two temperature in three thermometers 9 close water compensating valve 10, two in three thermometers 9 reach when height is high sets value (80 ℃), the state of emergency that occurs falling large slag is described, now opening immediately emergency water compensating valve 11 forces cooling, when two temperature in three thermometers 9 are reduced to high setting value (70-75 ℃), close emergency water compensating valve 11, this process allows the large flow overflow of dragveyer (large flow overflow refers to 40t/h-80t/h water).The top, rear portion of dragveyer 2 horizontal segments is provided with camera 12, can telemonitoring dragveyer liquid level and moisturizing situation, the other overflow pond of establishing of dragveyer, the overflow water occurring while collecting high water temperature state flows back to dragveyer with water pump by overflow water or directly enters power plant effluent sewer and recycles after system stability.The splash-back 15 that exceeds dragveyer horizontal segment upper groove body 200mm-500mm in dragveyer horizontal segment both sides installings, splash-back 15 is detachable, in the time of can preventing that dragveyer from falling slag, high temperature pulp water spatters outward, can maintain easily maintenance again.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a thermal power plant water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, is characterized in that:
The oblique ascension section top of dragveyer (2) is provided with chain flushing water valve (13) and cooling water replenishment valve (10); Before, during and after in dragveyer (2) horizontal segment upper groove body, be respectively provided with a liquid level gauge (8) and a thermometer (9); Top, dragveyer (2) horizontal segment rear portion is provided with emergency water compensating valve (11); During dragveyer chain flushing water valve (13) operation, keep often opening, for chain, rinse; Dragveyer (2) horizontal segment is provided with camera (12) near the front upper of oblique ascension section;
Two in three liquid level gauges (8) reach low setting value, while reaching low water level, open cooling water replenishment valve (10), two in three liquid level gauges (8) reach high setting value, while reaching high water level, close cooling water replenishment valve (10), control between the high-low water level of water level under the flood level of dragveyer (2) and change, this process guarantees that dragveyer is without overflow;
When in three thermometers (9) two reach 70 ℃-75 ℃, open cooling water replenishment valve (10), this process allows dragveyer (2) to have the overflow of 10-20 minute, and the overflow water yield is 2t/h-5t/h; After being reduced to below 70 ℃, two temperature in three thermometers (9) close cooling water replenishment valve (10);
When in three thermometers (9) two reach more than 80 ℃, now opening immediately emergency water compensating valve (11) forces cooling, when being reduced to 70 ℃-75 ℃, two temperature in three thermometers (9) close emergency water compensating valve (11), this process allows the large flow overflow of dragveyer, and the large flow overflow water yield is 40t/h-80t/h.
2. a kind of thermal power plant according to claim 1 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, it is characterized in that: described dragveyer (2) is the dragveyer of transition slag bucket structure or the dragveyer of direct insertion water seal board structure, low water level is arranged on transition slag bucket or the above 300mm-350mm place, direct insertion water seal board bottom that inserts dragveyer (2) cell body, high water level is higher than low water level 200mm-600mm, and dragveyer (2) flood level is higher than high water level 50mm.
3. a kind of thermal power plant according to claim 1 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, it is characterized in that: the bearing of dragveyer (2) is by sealing water-stop, and the sealing penstock that connects industry water is often opened for dragveyer bearing seal.
4. a kind of thermal power plant according to claim 1 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, it is characterized in that: described dragveyer (2) is the dragveyer of transition slag bucket structure, transition slag bucket top and boiler furnace junction are provided with water sealed tank (3), in water sealed tank (3), be provided with some water sealed tank liquid level gauges (7), dragveyer (2) comprises and according to the two position signal of water sealed tank liquid level gauge (7), to water sealed tank (3), carries out the electronic water compensating valve (6) of moisturizing.
5. a kind of thermal power plant according to claim 1 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, it is characterized in that: described dragveyer (2) is the dragveyer of direct insertion water seal board structure, direct insertion water seal board (16) directly inserts in dragveyer cell body, and heat-insulation layer (17) is established on direct insertion water seal board top.
6. a kind of thermal power plant according to claim 1 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, is characterized in that: dragveyer (2) side is provided with the overflow pond of collecting dragveyer (2) overflow water.
7. a kind of thermal power plant according to claim 1 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, it is characterized in that: the sealing hydromining of dragveyer (2) is with industry water as water source, and the waste water that dragveyer (2) slagging-off cooling water and chain flushing water employing power plant processed is as water source.
8. a kind of thermal power plant according to claim 7 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, is characterized in that: the flowmeter that is respectively arranged with monitoring rate of water make-up on the female pipe in waste water water source that industry water water source and power plant processed.
9. a kind of thermal power plant according to claim 7 water-cooled mechanical deslagging system pulp water self-balancing heat-exchange method, is characterized in that: dragveyer (2) horizontal segment both sides arrange splash-back (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275065.8A CN102809164B (en) | 2012-08-03 | 2012-08-03 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210275065.8A CN102809164B (en) | 2012-08-03 | 2012-08-03 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102809164A CN102809164A (en) | 2012-12-05 |
| CN102809164B true CN102809164B (en) | 2014-08-13 |
Family
ID=47232958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210275065.8A Active CN102809164B (en) | 2012-08-03 | 2012-08-03 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102809164B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104296158B (en) * | 2014-09-16 | 2016-10-05 | 国家电网公司 | A kind of system and method preventing boiler the most quick-fried |
| CN105042606B (en) * | 2015-08-12 | 2018-09-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Dragveyer cooling water self-balance method |
| CN106223093B (en) * | 2016-09-19 | 2018-08-14 | 三峡大学 | Waste paper weight slag separator |
| CN110002661A (en) * | 2019-04-28 | 2019-07-12 | 国电龙源电力技术工程有限责任公司 | Method for treating desulfurized wastewater and utilization wet slag removal evaporation disposition desulfurization wastewater device |
| CN110360583B (en) * | 2019-07-11 | 2021-03-19 | 神华（福建）能源有限责任公司 | Submerged scraper slag conveyor |
| CN111911944A (en) * | 2020-06-24 | 2020-11-10 | 中国电建集团河北省电力勘测设计研究院有限公司 | Novel wet-type deslagging system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202066038U (en) * | 2011-04-25 | 2011-12-07 | 青岛四洲环保设备有限公司 | Cooling water closed type internal circulation wet slag removal equipment |
| CN102287838A (en) * | 2011-08-08 | 2011-12-21 | 鞍钢集团矿业公司 | Slag removal box of heavy frame chain slag remover |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3217544B2 (en) * | 1993-06-23 | 2001-10-09 | 三菱重工業株式会社 | Water ring type bottom ash conveyor |
| JPH08296833A (en) * | 1995-04-25 | 1996-11-12 | Mitsubishi Heavy Ind Ltd | Water sealed type furnace bottom ash conveyor apparatus |
-
2012
- 2012-08-03 CN CN201210275065.8A patent/CN102809164B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202066038U (en) * | 2011-04-25 | 2011-12-07 | 青岛四洲环保设备有限公司 | Cooling water closed type internal circulation wet slag removal equipment |
| CN102287838A (en) * | 2011-08-08 | 2011-12-21 | 鞍钢集团矿业公司 | Slag removal box of heavy frame chain slag remover |
Non-Patent Citations (2)
| Title |
|---|
| JP特開平7-12325A 1995.01.17 |
| JP特開平8-296833A 1996.11.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102809164A (en) | 2012-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102809164B (en) | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant | |
| CN202709143U (en) | Water-cooled mechanical deslagging system for thermal power plant | |
| CN201901674U (en) | Waste heat utilizing system for slag quenching water from blast furnace | |
| CN201340152Y (en) | Novel circulating water cooling device | |
| CN100578682C (en) | Special non-kinetic safety equipment of reactor | |
| CN105627339A (en) | Cyclic deslagging system | |
| CN107166413A (en) | Waste heat recovery pulp water cooling system | |
| CN203099859U (en) | Wet-type slag removing system for coal-powder boiler | |
| CN105157046B (en) | A kind of pulp water overtemperature processing system and control method | |
| CN209295089U (en) | A kind of boiler blow-off water recovery device | |
| CN205383620U (en) | Circulation deslagging system | |
| CN102230292A (en) | Circulation cooling device for chute of soda recovery furnace | |
| CN102260004A (en) | Closed industrial circulating cooling water device and method employing separate type heat pipe technology | |
| CN201670843U (en) | Cycling water pool with temperature reduction control and water level balance functions | |
| CN213955282U (en) | Drainage recovery system of periodic blowdown flash tank of power plant | |
| CN202630706U (en) | Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device | |
| CN205575806U (en) | Slagging -off pulp water closed circulation system | |
| CN211695090U (en) | Heating system utilizing waste heat of blast furnace slag flushing water | |
| CN208500503U (en) | A kind of UASB anaerobic reactor hold over system | |
| CN202482332U (en) | System for recovering waste heat of slag flushing water of blast furnace | |
| CN202139501U (en) | Circulating cooling device of alkali recycling furnace chute | |
| CN107906502B (en) | A kind of regular unloading container, draining system and method with from water seal resistance | |
| CN206113707U (en) | Multistage waste water recovery system | |
| CN107726867B (en) | A kind of vacuum drying oven discharge port material quickly cooling dust pelletizing system | |
| CN206496545U (en) | Seawater source heat pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 710075 Xi'an province high tech Development Zone, unity South Road, No. 22, No. Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation |