CN201212733Y - Vertical double combustion coal burning boiler - Google Patents

Vertical double combustion coal burning boiler Download PDF

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Publication number
CN201212733Y
CN201212733Y CNU200820071972XU CN200820071972U CN201212733Y CN 201212733 Y CN201212733 Y CN 201212733Y CN U200820071972X U CNU200820071972X U CN U200820071972XU CN 200820071972 U CN200820071972 U CN 200820071972U CN 201212733 Y CN201212733 Y CN 201212733Y
Authority
CN
China
Prior art keywords
hearth
combustion
flue
burnout
burner hearth
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.)
Expired - Fee Related
Application number
CNU200820071972XU
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Chinese (zh)
Inventor
朴哲宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BA CHAEL-WU
BA CHAEL WU
Original Assignee
BA CHAEL-WU
BA CHAEL WU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BA CHAEL-WU, BA CHAEL WU filed Critical BA CHAEL-WU
Priority to CNU200820071972XU priority Critical patent/CN201212733Y/en
Application granted granted Critical
Publication of CN201212733Y publication Critical patent/CN201212733Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

Abstract

The utility model discloses a vertical twice-combustion coal burning boiler which comprises a boiler casing, an internal furnace, a jacket, a gas generating hearth, a transversal water pipe, a great grate, an inner wind chamber and a first wind pipe, wherein the jacket is arranged between the boiler casing and the internal furnace, and the gas generating hearth and the transversal water pipe are arranged in the internal furnace; the transversal water pipe is communicated with the jacket, and the great grate, the inner wind chamber and the first wind pipe are arranged at the lower part of the gas generating hearth. The vertical twice-burning coal burning boiler also comprises a partition wall and a burnout hearth, wherein the internal furnace is divided into an upper part and a lower part by the partition wall, and the burnout hearth is arranged outside the boiler casing; an upper throat pipe and a lower throat pipe are respectively arranged between the burnout hearth and the upper part and the lower part of the internal furnace and enable the upper part and the lower part to be mutually communicated; a combustion supporting disk with an ejection hole is arranged in the burnout hearth, a small grate, a burnout wind chamber and a second wind pipe are arranged at the lower part of the burnout hearth, and the burnout hearth at the upper part of the combustion supporting disk is communicated with a third wind pipe. Due to the arrangement of two combustion systems, namely the gas generating hearth and the burnout hearth, the utility model enables combustion to be thorough and sufficient and has high heat efficiency without emitting black smoke so as to take the active effect on the environment protection.

Description

Vertical twice combustion coal-burning boiler
Technical field
The utility model belongs to industry, civil boiler field, is meant that specifically a kind of vertical fixed grate is the twice combustion boiler of fuel with the raw coal.
Technical background
At present, common employed vertical boiler, great majority still adopt the direct combustion system of raw coal, because structural restriction, cause combustion position not good, cause the thermal efficiency low, waste energy; Soot emissions exceed standard, serious environment pollution.
Coal is twice combustion in boiler, is raw coal is converted into coal gas under certain condition, and burning once more at high temperature then is with the clean technology of the burning of the black particle in the flue gas.Improved combustion efficiency thus, reduced and reduce soot emissions.Now, vertical coal gasification combustion boiler is previous generation, but because in the design, its combustion efficiency is also unsatisfactory, needs further to improve.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of prior art, and provide a kind of and burn thoroughly fully, the thermal efficiency is high, the vertical twice combustion coal-burning boiler of environmental protection.
For achieving the above object, the technical scheme that is adopted is:
A kind of vertical twice combustion coal-burning boiler, include shell, flue, the chuck that seam forms between shell and the flue, be arranged on the gas generator thorax in the flue, the horizontal water tube that is provided with in the flue, horizontal water tube is communicated in chuck, lower furnace portion is provided with big fire grate, the interior air compartment and first airduct, it is characterized in that also including partition wall is set in flue and in the shell arranged outside by flame retardant coating, the after-flame burner hearth that heat-insulation layer constitutes, partition wall is divided into flue, following two parts, the space of its underpart is the gas generator thorax, on after-flame burner hearth and the flue, be respectively arranged with the last trunnion and the following trunnion that make it to be interconnected between following two parts, in the after-flame burner hearth, be provided with the combustion-supporting dish of band spray-hole, the bottom is provided with little fire grate, the after-flame air compartment and second airduct, the after-flame burner hearth on combustion-supporting dish top is communicated with the 3rd airduct, simultaneously, the after-flame burner hearth on combustion-supporting dish top is connected by the convection pass of last trunnion with flue top, and the after-flame burner hearth of combustion-supporting dish bottom is connected with the gas generator thorax by following trunnion.
The utility model includes two combustion systems of gas generator thorax, after-flame burner hearth, the chuck that is formed by seam between shell and the flue becomes airtight water cavity, the flue internal upper part is provided with horizontal water tube, horizontal water tube is communicated in chuck, form water system, partition wall is set in flue, flue is divided into two parts, the space that its underpart big fire grate inboard by flue and the bottom is combined into constitutes the gas generator thorax, the air compartment and first airduct in its underpart is provided with.The present utility model is created point and is that described after-flame burner hearth is arranged on the shell outside, the after-flame burner hearth is provided with flame retardant coating from inside to outside, heat-insulation layer, its underpart is provided with little fire grate, the after-flame air compartment and second airduct, its top is provided with the 3rd airduct and last trunnion, and last trunnion is communicated with after-flame burner hearth and convection pass.The combustion-supporting dish of band spray-hole is set in the after-flame burner hearth.
Because the utility model has been broken the boiler of traditional vertical only is provided with combustion system in inside idea, and in the shell arranged outside after-flame burner hearth, so just traditional coal-fired mode is improved to the technology that burning is finished in two steps, promptly thicker coal seam is imperfect combustion and generation coal gas in the gas generator thorax, the trunnion of coal gas through being communicated with two burner hearths enters the after-flame burner hearth, from the air of ventilation blower through the after-flame air compartment, port drains into down and upwards blows into a small amount of coal seam of being lighted, make its burning become combustion-supporting kindling material, create the environment of a high temperature for after-flame coal gas, unburnt coal gas is at the combination of second airduct and the 3rd airduct spray wind and be arranged under the combustion-supporting dish effect that has spray-hole at after-flame furnace chamber middle part, flame sprays at a high speed through spray-hole, burning consumingly, the black particle burning that contains in flue gas in this process is clean, produce high-temperature flue gas simultaneously, high-temperature flue gas enters convection pass by last trunnion, entrained solid separate small in the flue gas is gone out, afterwards, high-temperature flue gas and inboard wall of furnace and horizontal water tube carry out heat exchange, finish power conversion.
Because being provided with the after-flame burner hearth makes burning of coal be divided into two stages to carry out; be at high temperature to carry out particularly, under the comprehensive function of combustion-supporting dish and two airduct air intakes, make burning carry out strongly in the after-flame stage; promptly produced high-temperature flue gas; again that the burning of the black particle in the flue gas is clean, like this, promptly improved the efficient of boiler; saved coal; reduce the discharging of black particle again, be referred to as the not boiler of over-emitting black exhaust, positive role has been played in environmental protection.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the side view of Fig. 1.
The specific embodiment
The chuck 25 that seam becomes between shell 1 and the flue 2 is connected, and flue 2 internal upper part fixed in space have multilayer horizontal water tube 3, and horizontal water tube 3 is communicated in chuck 25, and forms an airtight water cavity jointly; Flue 2 middle parts are provided with partition wall 8, partition wall 8 will be divided into upper and lower two parts in the flue 2, flue top is provided with horizontal water tube 3 and convection pass 24, partition wall 8 bottoms are provided with the space that is combined into by flue 2 inwalls and big fire grate 12, be gas generator thorax 9, air compartment 15, pond 14, first airduct 16 in big fire grate 12 bottoms are provided with; In the arranged outside of shell 1 from inside to outside successively by flame retardant coating 20, the after-flame burner hearth 7 that heat-insulation layer 21 constitutes, port row 11 is equipped with in the bottom of after-flame burner hearth 7, after-flame air compartment 13, second airduct 17, after-flame burner hearth 7 tops are equipped with and are attached thereto the 3rd logical airduct 18, first airduct 16, second airduct 17 and the 3rd airduct 18 all are connected with ventilation blower 19, the combustion-supporting dish 5 of band spray-hole 6 is housed in the after-flame burner hearth 7, the after-flame burner hearth on combustion-supporting dish 5 tops is communicated with by the interior convection pass 24 of the last trunnion 4 that is provided with and partition wall 8 top flues, the after-flame burner hearth of combustion-supporting dish 5 bottoms communicates with the gas generator thorax of partition wall 8 bottoms by the following trunnion 10 that is provided with, exhanst gas outlet 22 makes between convection pass 24 and the chimney 23 and is connected, and boiler is provided with indispensable flue top shoot door 26, the ash door 28 of the fire door 27 of gas generator thorax and interior air compartment.
Its operation principle: coal is rendered to respectively on big fire grate 12 and the port row 11, and the coal seam on the big fire grate 12 is thicker, and the coal on the port row 11 gets final product on a small quantity.Light the fire coal on the port row 11 earlier, refire the fire coal on the big fire grate 12, arrange 11 by ventilation blower 19 through second airduct 17, after-flame air compartment 13, port, the required part air of burning is sent into after-flame burner hearth 7, a small amount of coal on the port row 11 is burnt rapidly, after-flame burner hearth 7 temperature are raise,, and then form the high-temp combustion environment flame retardant coating 20 and combustion-supporting dish 5 heat temperature raisings on every side; Send into gas generator thorax 9 by ventilation blower 19 through first airduct 16, interior air compartment 15, the big fire grate 12 required most of air that will burn, because the coal seam on the big fire grate 12 is thicker, its burning is to carry out under oxygen undersupply condition, produce a large amount of coal gas, a spot of knowledge hot coal piece is fallen into the water vapour that produces a little in the pond 14 through the slit of big fire grate 12, promoted the generation of coal gas.The flame that is carrying uncombusted coal gas enters after-flame burner hearth 7 through following trunnion 10, under the hot environment of after-flame burner hearth 7, under the combustion-supporting dish 5 of being with spray-hole 6 and air comprehensive effect, carry out active combustion from second airduct 17 and the 3rd airduct 18, the burning of black particle in the flue gas is clean, produce high-temperature flue gas simultaneously, high-temperature flue gas is after spray-hole 6 sprays at a high speed, enter convection pass 24, because it is big that the cross section becomes suddenly, cigarette speed is fallen suddenly and the small solid particle of carrying secretly in the high-temperature flue gas is separated, and rests on the partition wall 8.High-temperature flue gas enters convection pass 24 backs and carries out heat exchange with flue 2 inwalls and horizontal water tube 3, finish power conversion, clean flue gas enters chimney 23 through exhanst gas outlet 22, be discharged in the atmosphere then, because the flue gas of discharging is clean with the black particle burning, small immobilized particles is also separated to be stayed in the stove, thereby discharged flue gas is that cleaning is colourless, and people can't see has flue gas discharging on the chimney.

Claims (1)

1, a kind of vertical twice combustion coal-burning boiler, include shell, flue, the chuck that seam forms between shell and the flue, be arranged on the gas generator thorax in the flue, the horizontal water tube that is provided with in the flue, horizontal water tube is communicated in chuck, lower furnace portion is provided with big fire grate, the interior air compartment and first airduct, it is characterized in that also including the partition wall that in flue, is provided with and in the shell arranged outside by flame retardant coating, the after-flame burner hearth that heat-insulation layer constitutes, partition wall is divided into flue, following two parts, the space of its underpart is the gas generator thorax, on after-flame burner hearth and the flue, be respectively arranged with the last trunnion and the following trunnion that make it to be interconnected between following two parts, in the after-flame burner hearth, be provided with the combustion-supporting dish of band spray-hole, the bottom is provided with little fire grate, the after-flame air compartment and second airduct, the after-flame burner hearth on combustion-supporting dish top is communicated with the 3rd airduct, simultaneously, the after-flame burner hearth on combustion-supporting dish top is connected by the convection pass of last trunnion with flue top, and the after-flame burner hearth of combustion-supporting dish bottom is connected with the gas generator thorax by following trunnion.
CNU200820071972XU 2008-06-05 2008-06-05 Vertical double combustion coal burning boiler Expired - Fee Related CN201212733Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200820071972XU CN201212733Y (en) 2008-06-05 2008-06-05 Vertical double combustion coal burning boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200820071972XU CN201212733Y (en) 2008-06-05 2008-06-05 Vertical double combustion coal burning boiler

Publications (1)

Publication Number Publication Date
CN201212733Y true CN201212733Y (en) 2009-03-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200820071972XU Expired - Fee Related CN201212733Y (en) 2008-06-05 2008-06-05 Vertical double combustion coal burning boiler

Country Status (1)

Country Link
CN (1) CN201212733Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022821A (en) * 2010-12-22 2011-04-20 曲沃县秀水炉业有限公司 Vertical gas fired boiler
CN102287799A (en) * 2011-07-22 2011-12-21 王国祥 Normal-pressure energy-saving coal-burning steam and water dual-purpose boiler
CN102674339A (en) * 2011-03-09 2012-09-19 盐城永裕福活性炭厂 High-efficiency energy-saving environment-friendly active carbon burning furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022821A (en) * 2010-12-22 2011-04-20 曲沃县秀水炉业有限公司 Vertical gas fired boiler
CN102022821B (en) * 2010-12-22 2013-04-03 曲沃县秀水炉业有限公司 Vertical gas fired boiler
CN102674339A (en) * 2011-03-09 2012-09-19 盐城永裕福活性炭厂 High-efficiency energy-saving environment-friendly active carbon burning furnace
CN102287799A (en) * 2011-07-22 2011-12-21 王国祥 Normal-pressure energy-saving coal-burning steam and water dual-purpose boiler

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090325

Termination date: 20110605