CN101476716B - Slag residual heat utilization apparatus for industrial boiler - Google Patents
Slag residual heat utilization apparatus for industrial boiler Download PDFInfo
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- CN101476716B CN101476716B CN2009100737407A CN200910073740A CN101476716B CN 101476716 B CN101476716 B CN 101476716B CN 2009100737407 A CN2009100737407 A CN 2009100737407A CN 200910073740 A CN200910073740 A CN 200910073740A CN 101476716 B CN101476716 B CN 101476716B
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- slag
- heat exchanging
- boiler
- exchanging water
- heat
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a deslagging residual heat utilizing device for an industrial boiler and aims to effectively utilize the deslagging residual heat of the boiler and reduce cooling water amount of the boiler slag. The device comprises a boiler slag separating plate, a slag crusher, a hydraulic oil cylinder, a heat exchanging device, a gas locking device, a flow guiding plate, an exhaust pipe, a heat insulation wall and a support beam, wherein the boiler slag separating plate comprises a slag scraping plate and a harrow-shaped hearth, the upper end of the slag scraping plate is positioned on the lower side of a boiler grate, and the lower end of the slag scraping plate is connected with the harrow-shaped hearth; the slag scraping plate is arranged on the heat insulation wall; the slag crusher comprises a connecting rod and a slag cutter; the slag cutter is a plurality of pairs of iron bars welded on a cross rod; the heat exchanging device comprises a header and heat exchanging water pipes, the header is communicated with the heat exchanging water pipes, the header is fixed outside the heat insulation wall, each heat exchanging water pipe is bent into an S shape, a boiler slag channel is formed between two layers of heat exchanging water pipes, and the heat exchanging water pipes are arranged in the inner space of the heat insulation wall; the gas locking device comprises the flow guiding plate, a separating bar and an automatic sealing plate; and the heat insulation wall on the lower side of the flow guiding plate is provided with the exhaust pipe.
Description
Technical field
The present invention relates to a kind of Industrial Boiler deslagging residual heat using device.
Background technology
Large-scale coal-burned industrial boiler is widely used, but because the coal source is assorted, ature of coal is unstable, content of ashes is generally high, make the boiler slag removal amount big, deslagging temperature is up to 500-800 ℃, owing to generally adopt direct deslagging pattern, make afterheat of slags can not get effective utilization, directly influence the thermal efficiency of boiler.High temperature furnace slag generally adopts water cooling at present, vaporizes in a large number because of cold pulp water, causes water consumption big, and boil-off all has corrosion to equipment in the boiler room and civil engineering structure, makes the operating cost of boiler higher.
Summary of the invention
The present invention seeks to overcome the deficiency of above-mentioned prior art, a kind of Industrial Boiler deslagging residual heat using device that can effectively utilize the boiler slag removal waste heat, reduce the slag cooling water amount is provided.
The present invention includes slag separating plate, slag crusher, hydraulic jack, heat-exchanger rig, flapper, deflector, blast pipe, insulated wall and brace summer.The slag separating plate comprises scum board and rake shape thorax, and scum board is an arc, and rake shape thorax is crooked harrow nail shape; The scum board upper end is positioned at the boiler grate below, and the scum board lower end is connected with rake shape thorax; Scum board is contained on the insulated wall; Slag crusher comprises connecting rod and slag cutter; The slag cutter is to be welded on some to iron bar on the cross bar, and every pair of iron bar forms a clip shape, and the iron bar outer end position is corresponding with the position, space of harrowing the shape thorax; Cross bar is connected with connecting rod, and the connecting rod stage casing is fixed on the boiler operatiopn platform by pin, and the connecting rod other end is connected with hydraulic cylinder by connecting axle, and the hydraulic cylinder bottom is contained on the boiler operatiopn platform by pin, and the boiler operatiopn platform is positioned at the insulated wall top; Hydraulic cylinder is by motor and hydraulic pump control.Heat-exchanger rig comprises header and heat exchanging water pipe, header and heat exchanging water pipe are communicated with, and header is fixed on the insulated wall outside, and the heat exchanging water pipe curves the S shape, form a slag passage between the two-layer heat exchanging water pipe, the heat exchanging water pipe is contained in the inner space that forms between the insulated wall by brace summer; The heat exchanging water pipe is positioned at the below of boiler operatiopn platform, and slag crusher and slag separating plate are positioned at the top of boiler operatiopn platform; Flapper comprises deflector, divider and automatic sealing plate; Automatically sealing plate comprises the heavy plate of sealing meter, rotating shaft, seal case, weight and connecting rod; Divider is positioned at the heavy plate of sealing meter top, and divider one end is contained on the insulated wall, and the other end and deflector weld together; The installing hole that the heavy plate of sealing meter passes on the insulated wall is contained in the rotating shaft, and rotating shaft is contained on the seal case by bearing, and the outer end of stretching out seal case in rotating shaft is welded with connecting rod, and weight is housed on the connecting rod; Seal case is contained in outside the installing hole on the insulated wall; Deflector is contained between heat exchanging water pipe lower end and the heavy plate of sealing meter, forms the space of a relative closure between S shape slag passage and the heavy plate of sealing meter.On the insulated wall below the deflector, blast pipe is housed, the steam that produces in the slag chute can be discharged, avoid etching apparatus.
The heat exchanging water pipe is a row water pipe arranged side by side, and its angle of inclination is in 23～30 ° of scopes; The heat exchanging water pipe back side is welded with the location crossbeam that is connected with brace summer; Be welded with band steel between the heat exchanging water pipe arranged side by side.Brace summer adopts scalable steel frame construction.Automatically sealing plate has several, separate installation arranged side by side.
The hot slag that the boiler grate afterbody is discharged flows to rake shape thorax through scum board, smash by the slag cutter on the slag crusher, fall in the S shape passage that forms by two-layer heat exchanging water pipe, lime-ash is in the downslide process, high-temperature ash and by way of the heat exchanging water pipe between carry out heat convection and radiation heat transfer, with the heating of the water in the heat exchanging water pipe, drop on then on the heavy plate of sealing meter; The heavy plate of sealing meter is positioned at the slag chute top, and the slag on the heavy plate of sealing meter is pooled to just to fall behind the constant weight and enters slag chute, concentrates and drains.
The present invention is suitable for the UTILIZATION OF VESIDUAL HEAT IN of large scale industry boiler slag removal.The present invention effectively utilizes the water among the boiler slag removal waste heat heating heat exchanging water pipe, this hot water can be used as boiler replenishing water or a pipe network water supply, be connected with existing heat supply water charging system, easy to use, control is flexible, and operating cost is low, fuel saving, reduce pollutant emission, improve working environment, reduce the slag consumption of cooling-water.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of one group of heavy plate of sealing meter and demarcation strip.
Fig. 3 is a waste heat heating water circulating system hydrographic chart.
Among the figure: 1, brace summer, 2, the cinder hole that falls, 3, header, 4, the heat exchanging water pipe, 5, brace summer, 6, back insulated wall, 7, the location crossbeam, 8, divider, 9, seal case, 10, rotating shaft, 11, connecting rod, 12, weight, 13, installing hole, 14, slag chute, 15, the heavy plate of sealing meter, 16, blast pipe, 17, deflector, 18, the preincubation wall, 19, the boiler operatiopn platform, 20, pin, 21, hydraulic cylinder, 22, connecting axle, 23, pin, 24, connecting rod, 25, cross bar, 26, iron bar, 27, rake shape thorax, 28, scum board, 29, Constant pressure tank, 30, the demineralized water storage tank, 31, water supply tank, 32, water-circulating pump, 33, the automatic water supplement pump, 34, automatic temperature-sensing valve, 35, the water supply force (forcing) pump, 36, the backwater circulation pump, 37, boiler.
The specific embodiment
Insulated wall comprises preincubation wall 18, back insulated wall 6 and both sides insulated wall, and insulated wall adopts highiy refractory brick to build by laying bricks or stones, is provided with steel I-beam within the walls.Heat exchanging water pipe 4 is a row water pipe arranged side by side, and its back side is welded with the location crossbeam 7 that is connected with brace summer 5, and heat exchanging water pipe 4 angle of inclination should be not less than 23 °, generally 23～30 ° of scopes, is convenient to the smooth landing of slag.Be welded with band steel between the heat exchanging water pipe 4 arranged side by side, make be heated between the heat exchanging water pipe 4 more even.Heat exchanging water pipe 4 surfaces are coated with high temperature abrasion material, play anti-wear and are difficult for the effect of dust stratification.Brace summer 5 adopts scalable steel frame construction, fixing heat exchanging water pipe 4 and strengthen it and resist to fall the slag impact capacity, when reducing heat exchanging water pipe 4 and being heated to the tension and compression stress of body of wall.
Divider 8 one ends and deflector 17 weld together, steel I-beam welding in the other end and the insulated wall.Scum board 28 is contained on the insulated wall 6 of back by brace summer 1.
Automatically sealing plate has several, separate installation arranged side by side; When slag is fallen wherein slag on the heavy plate 15 of any one sealing meter and is surpassed constant weight, the heavy plate 15 of sealing meter is that the center rotates with rotating shaft 10, slag drops to rapidly in the slag chute 14, the heavy plate 15 of sealing meter returns to original position under weight 12 effects then, thereby stops that the steam that produces in the slag chute 14 enters heat-exchanger rig.Blast pipe 16 is discharged to the steam that produces in the slag chute 14 outdoor, can eliminate the corrosion to equipment, improves working environment, prolongs service life of equipment.Blast pipe 16 arranges that quantity determines according to the fire grate width.The position of weight 12 can be regulated as required; On the weight 12 counter is housed, can be used for calculating the slag number of times, reach the heavy effect of meter.
Moisturizing is passed in the water supply tank 31 through Constant pressure tank 29, demineralized water storage tank 30, get back to water supply tank 31 by heat exchanging water pipe 4 backs by header 3 from the bottom-up adverse current of water supply tank through water-circulating pump 32, by water-circulating pump 32 heating that continuously circulates, water after the heating enters automatic water supplement pump 33, when water temperature is higher than 90 ℃, send into water supply network, send into pipe network one time through water supply force (forcing) pump 35 by automatic temperature-sensing valve 34; When water temperature was lower than 90 ℃, the automatic temperature-sensing valve 34 of process, backwater circulation pump 36 were to boiler 37 moisturizings.
Claims (6)
1. an Industrial Boiler deslagging residual heat using device is characterized in that comprising slag separating plate, slag crusher, hydraulic cylinder, heat-exchanger rig, flapper, deflector, blast pipe, insulated wall and brace summer; The slag separating plate comprises scum board and rake shape thorax, and scum board is an arc, and rake shape thorax is crooked harrow nail shape; The scum board upper end is positioned at the boiler grate below, and the scum board lower end is connected with rake shape thorax; Scum board is contained on the insulated wall; Slag crusher comprises connecting rod and slag cutter; The slag cutter is to be welded on some to iron bar on the cross bar, and every pair of iron bar forms a clip shape, and the iron bar outer end position is corresponding with the position, space of harrowing the shape thorax; Cross bar is connected with connecting rod, and the connecting rod stage casing is fixed on the boiler operatiopn platform by pin, and the connecting rod other end is connected with hydraulic cylinder by connecting axle, and the hydraulic cylinder bottom is contained on the boiler operatiopn platform by pin, and the boiler operatiopn platform is positioned at the insulated wall top; Hydraulic cylinder is by motor and hydraulic pump control; Heat-exchanger rig comprises header and heat exchanging water pipe, header and heat exchanging water pipe are communicated with, and header is fixed on the insulated wall outside, and the heat exchanging water pipe curves the S shape, form a slag passage between the two-layer heat exchanging water pipe, the heat exchanging water pipe is contained in the inner space that forms between the insulated wall by brace summer; The heat exchanging water pipe is positioned at the below of boiler operatiopn platform, and slag crusher and slag separating plate are positioned at the top of boiler operatiopn platform; Flapper comprises deflector, divider and automatic sealing plate; Automatically sealing plate comprises the heavy plate of sealing meter, rotating shaft, seal case, weight and connecting rod; Divider is positioned at the heavy plate of sealing meter top, and divider one end is contained on the insulated wall, and the other end and deflector weld together; The installing hole that the heavy plate of sealing meter passes on the insulated wall is contained in the rotating shaft, and rotating shaft is contained on the seal case by bearing, and the outer end of stretching out seal case in rotating shaft is welded with connecting rod, and weight is housed on the connecting rod; Seal case is contained in outside the installing hole on the insulated wall; Deflector is contained between heat exchanging water pipe lower end and the heavy plate of sealing meter, forms the space of a relative closure between S shape slag passage and the heavy plate of sealing meter; On the insulated wall below the deflector, blast pipe is housed.
2. Industrial Boiler deslagging residual heat using device as claimed in claim 1 is characterized in that the heat exchanging water pipe is a row water pipe arranged side by side, and its angle of inclination is in 23～30 ° of scopes.
3. Industrial Boiler deslagging residual heat using device as claimed in claim 1 or 2 is characterized in that automatic sealing plate has several, separate installation arranged side by side.
4. Industrial Boiler deslagging residual heat using device as claimed in claim 1 or 2 is characterized in that brace summer adopts scalable steel frame construction.
5. Industrial Boiler deslagging residual heat using device as claimed in claim 1 or 2 is characterized in that the heat exchanging water pipe back side is welded with the location crossbeam that is connected with brace summer.
6. Industrial Boiler deslagging residual heat using device as claimed in claim 1 or 2 is characterized in that being welded with band steel between the heat exchanging water pipe arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100737407A CN101476716B (en) | 2009-01-23 | 2009-01-23 | Slag residual heat utilization apparatus for industrial boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100737407A CN101476716B (en) | 2009-01-23 | 2009-01-23 | Slag residual heat utilization apparatus for industrial boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476716A CN101476716A (en) | 2009-07-08 |
| CN101476716B true CN101476716B (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100737407A Expired - Fee Related CN101476716B (en) | 2009-01-23 | 2009-01-23 | Slag residual heat utilization apparatus for industrial boiler |
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| CN (1) | CN101476716B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287835A (en) * | 2010-06-18 | 2011-12-21 | 中国电力工程顾问集团华东电力设计院 | Boiler wet-type slag removal system |
| CN104566407A (en) * | 2010-09-15 | 2015-04-29 | 任振伟 | Waste heat recovery device and dry slagging boiler comprising waste heat recovery device |
| CN103672930B (en) * | 2013-12-16 | 2016-01-20 | 杨群峰 | A kind of slag cooler producing steam |
| CN104031689B (en) * | 2014-06-24 | 2016-03-02 | 中国神华能源股份有限公司 | Refrigerating unit |
| CN111623357A (en) * | 2020-06-19 | 2020-09-04 | 南京浩睿达环保科技有限公司 | Incineration equipment that factor of safety is high |
| RU2737574C1 (en) * | 2020-09-08 | 2020-12-01 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Юго-Западный государственный университет" (ЮЗГУ) | Complex heat exchanger from multilayer plates |
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2009
- 2009-01-23 CN CN2009100737407A patent/CN101476716B/en not_active Expired - Fee Related
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| CN101476716A (en) | 2009-07-08 |
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Owner name: CHINA DATANG GROUP SCIENCE AND TECHNOLOGY RESEARCH Effective date: 20130729 |
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Effective date of registration: 20130729 Address after: 030013, Shanxi, Taiyuan province big east red ditch South Street No. 36 Patentee after: Engineering College of Shanxi University Patentee after: China Datang Group Science & Technology Research Institute Co., Ltd. Address before: 030013, Shanxi, Taiyuan province big east red ditch South Street No. 36 Patentee before: Engineering College of Shanxi University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20100908 Termination date: 20170123 |