CN104930499A - Palm waste boiler sectional combustion boiler hearth - Google Patents
Palm waste boiler sectional combustion boiler hearth Download PDFInfo
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- CN104930499A CN104930499A CN201510351122.XA CN201510351122A CN104930499A CN 104930499 A CN104930499 A CN 104930499A CN 201510351122 A CN201510351122 A CN 201510351122A CN 104930499 A CN104930499 A CN 104930499A
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- fire grate
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- burner hearth
- palm waste
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Abstract
The invention relates to a palm waste boiler sectional combustion boiler hearth which comprises a hopper, a boiler hearth body, a front arch, a rear arch, fire grates, a fire grate support and an ash bucket. The fire grates are composed of a drying segment reciprocating fire grate and a combustion segment reciprocating fire grate. The drying segment reciprocating fire grate and the combustion segment reciprocating fire grate are connected in a continuous tilted dislocation fault mode. Both the angle of inclination of the drying segment reciprocating fire grate and the angle of inclination of the combustion segment reciprocating fire grate range from 20 degrees to 30 degrees. According to the palm waste boiler sectional combustion boiler hearth, the characteristics of palm waste are utilized, a boiler hearth structure of a traditional biomass steam boiler is changed, the drying segment reciprocating fire grate and the combustion segment reciprocating fire grate are arranged in the boiler hearth, the palm waste with the large water content is sent into the drying segment reciprocating fire grate region of the boiler hearth to be dried in the early stage, then the palm waste enters the combustion segment reciprocating fire grate of the boiler hearth, it is guaranteed that the palm waste is burnt out, the hearth combustion temperature is reasonably controlled through air distribution, according to the characteristic that the melting point of the combusted palm waste is low, the problem of coking of the boiler hearth and a boiler hearth smoke outlet is solved, and efficient, energy-saving and safe operation of the palm waste steam boiler is achieved.
Description
Technical field
The invention belongs to field of boilers, relate to the burning boiler of palm waste, especially a kind of palm waste boiler sectional combustion burner hearth.
Background technology
Along with progress and the development of society, the awareness of saving energy of people and the enhancing day by day of environmental consciousness, the requirement standard of international community to energy-saving and emission-reduction is more and more higher, thus also progressively agenda is gone on to the exploitation of clean energy resource, and biomass energy is because it is cheap and recyclability and be subject to various countries and pay close attention to widely.Current, biomass fuel has become the important component part of the countries in the world strategy of sustainable development, the energy solution of multi-win can be provided for government, also reduce to remote, political situation unstable or even the degree of dependence of dangerous state crude oil, be conducive to energy security, the target for the energy-saving and emission-reduction carbon drop discharge realizing the whole world has great significance.
Palm waste is one of biomass energy.Palm plant is remaining a kind of lightweight high-moisture fibre fuel after squeezing oil plant, all produces waste material so in a large number every day, also do not utilized preferably at present in the palm oil factory of country in Southeast Asia.Palm waste is primarily of three part compositions: fiber, and namely palm fruit has squeezed the clout after palm oil, and Lower heat value is at 12556KJ/KG; The shell of palm fruit, calorific value is very high, and as coal, price is also very expensive; Fruit string, Lower heat value is at 7600KJ/KG.The fruit string moisture of palm is very high, natural untreated fruit string moisture reaches 70%, moisture after treatment also will more than 50%, and the ash fusion point after burning is low: DT=960 DEG C, ST=970 DEG C, HT=980 DEG C, FT=1000 DEG C, so this kind of fuel applies on boiler, moisture content is large, burning difficulty; Ash fusion point is low, easily in burner hearth coking.
Therefore, how utilizing the feature that palm waste burns, by changing the burner hearth of traditional biomass steam boiler, ensureing to obtain high burning efficiency, solve burner hearth coking, realizing energy-efficient, the safe operation of palm waste steam boiler, is those skilled in the art's technical problems urgently to be resolved hurrily.
Retrieved by patent document, find three sections of relevant patent documents:
1, a kind of CFBB (CN103453521A) of the palm slag that burns, it makes separator noncoking, and returning charge is smooth and easy, the not stifled ash of back-end ductwork.It comprises drum, burner hearth, superheater, economizer, air preheater, boiler export flue, the top of described burner hearth is provided with described drum, flue gas flow direction direction is provided with described superheater successively, economizer, air preheater, boiler export flue, it is characterized in that: the bottom sidepiece of described burner hearth is circumscribed with batcher, to palm slag pipe, described batcher, the combustion chamber of described lower furnace portion is led to palm slag pipe, the described import to palm slag pipe is provided with the air-intake device of drying towards described burner hearth, described combustion chamber lower disposed has residue outlet, bottom ignition device is provided with below described combustion chamber, the interchannel that described burner hearth connects described superheater is provided with enclosure wall tube, in the space that described burner hearth leads to described enclosure wall tube, Vertical dimension is furnished with the cold high temperature cyclone separator of circular vapour.
2, a kind of palm msw boiler (CN202382249U), it belongs to boiler industry.It solve burning boiler traditional in prior art using palm slag as fuel, fuel is easily put up a bridge blocking, tempering in feed bin, and easily causes burning boiler and the serious dust stratification of back-end surfaces thereof, and infringement burning boiler, makes the defect that its back-end surfaces corrodes.It mainly comprises feed system, burning boiler, afterbody system and boiler accessory machinery annex; Feed system comprises belt conveyor, feeding warehouse; Burning boiler comprises large of top, fire grate device, adiabatic furnace; Afterbody system comprises economizer, air preheater, ash dropped unit, cigarette air channel, air blast, air-introduced machine; Adiabatic furnace is provided with water cooling plant, convection bank heating surface, is provided with star-like feed valve bottom described feeding warehouse; Secondary air system is provided with in burning boiler; Described air preheater is provided with earthenware.
3, a kind of burning palm shell and monkey grass (CN203052621U), and produce the boiler that use palm shell and monkey grass of steam for steam supply, generating.The utility model adopts following technical scheme, a kind of boiler using palm shell and monkey grass, comprise drum, steelframe, burner hearth, fire grate, slag tap and ash discharge equipment, burning chamber, three flues, horizontal flue and back-end ductwork, burner hearth is installed on steelframe, fire grate is arranged on the below of burner hearth, the top that burner hearth is positioned at fire grate is provided with forward and backward arch and Secondary Air, it is characterized in that: described fire grate is water-cooling vibration furnace grate, after described burning chamber, three flues, horizontal flue and back-end ductwork are successively set on burner hearth.
By the contrast of technical characteristic, above-mentioned patent document and technical scheme of the present invention have larger difference, can not affect creativeness of the present invention.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of sufficient combustion is provided, solves burner hearth coking, energy-efficient palm waste sectional combustion burner hearth.
The technical scheme that the present invention realizes object is:
A kind of palm waste boiler sectional combustion burner hearth, comprise hopper, burner hearth, face arch, rear arch, fire grate, furnace grate support and ash bucket, furnace wall in burner hearth is provided with face arch and rear arch, outlet flue is formed above face arch and rear arch, fire grate is provided with in burner hearth, the furnace wall of fire grate entrance point is provided with hopper, the furnace wall of the fire grate port of export is provided with ash bucket, it is characterized in that: described fire grate is made up of drying section reciprocal grate and burning zone reciprocal grate, drying section reciprocal grate and burning zone reciprocal grate are that the dislocation fault of continuous tilt is connected, the angle of inclination of drying section reciprocal grate and burning zone reciprocal grate is 20 ~ 30 degree.
And the dislocation fault between described drying section reciprocal grate and burning zone reciprocal grate is vertical fault, or inclined fault, in this tomography position level or level angle being not more than 5 degree that is inclined upwardly, one group of feeding airduct is installed.
And the rear arch position in burner hearth is provided with one group of secondary air channel, secondary air channel level or level are less than 10 degree of installations downwards.
Advantage of the present invention and good effect are:
1, the present invention utilizes the feature of palm waste, by changing the chamber structure of traditional biomass steam boiler, at burner hearth, drying section reciprocal grate and burning zone reciprocal grate are set, palm waste larger for moisture content is sent in burner hearth drying section reciprocal grate region and carries out drying and processing in early stage, enter the burning zone reciprocal grate region of burner hearth again, ensure that palm waste burns and by air distribution conservative control combustion temperature in hearth, for the feature that the ash fusion point after palm waste burning is low, solve burner hearth and burner hearth outlet flue coking problem, realize the energy-efficient of palm waste steam boiler, safe operation.
2, the present invention arranges feeding airduct, can realize the suspension combustion of palm waste in burner hearth, effectively avoids palm waste to pile up at grate surface, enhanced burning effect; Ash bucket of the present invention is arranged on the lower one end of burning zone reciprocal grate, and the lime-ash gravity be conducive to after palm waste burning discharges burner hearth fast.
3, rear arch of the present invention arranges secondary air channel, the oxygen of palm waste required for the burning of burner hearth inner suspension can be supplemented, and disturbance is produced to the flue gas in combustion zone and drying area, increase the time of staying of flue gas, ensure that palm waste is dried and burnt in burner hearth and reach best effect, avoid not burning the back-end surfaces generation second-time burning that palm waste enters boiler, thus ensure the safe operation of boiler.
Accompanying drawing explanation
Fig. 1 is the structural representation of palm waste boiler sectional combustion burner hearth of the present invention.
Detailed description of the invention
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of palm waste boiler sectional combustion burner hearth, consult Fig. 1, comprise hopper 1, burner hearth 4, face arch 2, rear arch 5, fire grate, furnace grate support 9 and ash bucket 8, furnace wall in burner hearth is provided with face arch and rear arch, outlet flue is formed above face arch and rear arch, in burner hearth, be provided with fire grate, the furnace wall of fire grate entrance point is provided with hopper, the furnace wall of the fire grate port of export is provided with ash bucket.
Innovative point of the present invention is:
1, described fire grate is made up of drying section reciprocal grate 10 and burning zone reciprocal grate 7, drying section reciprocal grate and burning zone reciprocal grate are that the dislocation fault of continuous tilt is connected, the angle of inclination of drying section reciprocal grate and burning zone reciprocal grate is 20 ~ 30 degree, the best is 25 degree, tilting continuously and the connection of dislocation fault can make fire grate advance palm waste time, be conducive to palm waste rolling, accumulation can not be formed, thus accelerating palmitic acid waste material drying rate, the height of dislocation fault sets according to actual needs.
2, the dislocation fault between described drying section reciprocal grate and burning zone reciprocal grate is vertical fault, also can be inclined fault, is vertical fault in the present embodiment accompanying drawing; Be provided with one group of feeding airduct 3 in this vertical fault position level or level angle being not more than 5 degree that is inclined upwardly, this feeding airduct can make palm waste in the burning of burner hearth inner suspension, avoids palm waste to pile up at grate surface, improves combustion efficiency.
3, the rear arch position in burner hearth is provided with one group of secondary air channel 6, and secondary air channel level or level are less than 10 degree of installations downwards.Secondary air channel can supplement the oxygen of palm waste required for the burning of burner hearth inner suspension, and disturbance is produced to the flue gas in combustion zone and drying area, increase the time of staying of flue gas, ensure that palm waste is dried and burnt in burner hearth and reach best effect, avoid not burning the back-end surfaces generation second-time burning that palm waste enters boiler, thus ensure the safe operation of boiler.
The present invention is by arranging drying section reciprocal grate and burning zone reciprocal grate at burner hearth, palm waste larger for moisture content is sent in burner hearth drying section reciprocal grate region and carries out drying and processing in early stage, enter the burning zone reciprocal grate region of burner hearth again, ensure that palm waste burns and by air distribution conservative control combustion temperature in hearth, for the feature that the ash fusion point after palm waste burning is low, solve burner hearth and burner hearth outlet flue coking problem, realize energy-efficient, the safe operation of palm waste steam boiler.
Claims (3)
1. a palm waste boiler sectional combustion burner hearth, comprise hopper, burner hearth, face arch, rear arch, fire grate, furnace grate support and ash bucket, furnace wall in burner hearth is provided with face arch and rear arch, outlet flue is formed above face arch and rear arch, fire grate is provided with in burner hearth, the furnace wall of fire grate entrance point is provided with hopper, the furnace wall of the fire grate port of export is provided with ash bucket, it is characterized in that: described fire grate is made up of drying section reciprocal grate and burning zone reciprocal grate, drying section reciprocal grate and burning zone reciprocal grate are that the dislocation fault of continuous tilt is connected, the angle of inclination of drying section reciprocal grate and burning zone reciprocal grate is 20 ~ 30 degree.
2. palm waste boiler sectional combustion burner hearth according to claim 1, it is characterized in that: the dislocation fault between described drying section reciprocal grate and burning zone reciprocal grate is vertical fault, or inclined fault, in this tomography position level or level angle being not more than 5 degree that is inclined upwardly, one group of feeding airduct is installed.
3. palm waste boiler sectional combustion burner hearth according to claim 1, is characterized in that: the rear arch position in burner hearth is provided with one group of secondary air channel, and secondary air channel level or level are less than 10 degree of installations downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351122.XA CN104930499A (en) | 2015-06-24 | 2015-06-24 | Palm waste boiler sectional combustion boiler hearth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351122.XA CN104930499A (en) | 2015-06-24 | 2015-06-24 | Palm waste boiler sectional combustion boiler hearth |
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| CN104930499A true CN104930499A (en) | 2015-09-23 |
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| CN201510351122.XA Pending CN104930499A (en) | 2015-06-24 | 2015-06-24 | Palm waste boiler sectional combustion boiler hearth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028027A (en) * | 2018-07-06 | 2018-12-18 | 吉林省斯特尔科技有限公司 | Novel biomass boiler oil preheating and drying fire grate subsystem |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105747A (en) * | 1990-02-28 | 1992-04-21 | Institute Of Gas Technology | Process and apparatus for reducing pollutant emissions in flue gases |
| JPH08327041A (en) * | 1995-06-02 | 1996-12-10 | R B:Kk | Incinerator |
| CN201748435U (en) * | 2010-06-08 | 2011-02-16 | 上海康恒环境工程有限公司 | Waste incineration treatment device applicable to small towns |
| CN201983253U (en) * | 2011-01-04 | 2011-09-21 | 华北电力大学 | Biomass direct-fired boiler |
| WO2014006459A1 (en) * | 2012-07-06 | 2014-01-09 | Babcock & Wilcox Vølund A/S | Vibrating grate stoker |
| CN204717668U (en) * | 2015-06-24 | 2015-10-21 | 天津机电进出口有限公司 | A kind of palm waste boiler sectional combustion burner hearth |
-
2015
- 2015-06-24 CN CN201510351122.XA patent/CN104930499A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105747A (en) * | 1990-02-28 | 1992-04-21 | Institute Of Gas Technology | Process and apparatus for reducing pollutant emissions in flue gases |
| JPH08327041A (en) * | 1995-06-02 | 1996-12-10 | R B:Kk | Incinerator |
| CN201748435U (en) * | 2010-06-08 | 2011-02-16 | 上海康恒环境工程有限公司 | Waste incineration treatment device applicable to small towns |
| CN201983253U (en) * | 2011-01-04 | 2011-09-21 | 华北电力大学 | Biomass direct-fired boiler |
| WO2014006459A1 (en) * | 2012-07-06 | 2014-01-09 | Babcock & Wilcox Vølund A/S | Vibrating grate stoker |
| CN204717668U (en) * | 2015-06-24 | 2015-10-21 | 天津机电进出口有限公司 | A kind of palm waste boiler sectional combustion burner hearth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028027A (en) * | 2018-07-06 | 2018-12-18 | 吉林省斯特尔科技有限公司 | Novel biomass boiler oil preheating and drying fire grate subsystem |
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Application publication date: 20150923 |
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