CN101206075A - Hot flue gas bidirectional firing, high anthrax adaptability and variable load honeycomb type coal boiler - Google Patents
Hot flue gas bidirectional firing, high anthrax adaptability and variable load honeycomb type coal boiler Download PDFInfo
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- CN101206075A CN101206075A CNA2007100563410A CN200710056341A CN101206075A CN 101206075 A CN101206075 A CN 101206075A CN A2007100563410 A CNA2007100563410 A CN A2007100563410A CN 200710056341 A CN200710056341 A CN 200710056341A CN 101206075 A CN101206075 A CN 101206075A
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Abstract
A honeycomb type coal boiler with hot flue gas bidirectional ignition, high-rank coal adaptability and variable load belongs to the boiler technical field, in particular relates to stream for burning honeycomb type coal and a hot-water boiler. A right hearth of the invention is provided with a right side hearth hogging; the left hearth is provided with a left side hearth face arch and a left side hearth rear arch; the structures of the left hearth and the right hearth are asymmetrical; the flue gas channels of the left hearth and the right hearth are also asymmetrical; the invention adopts the mode that the hot flue gas downwards the right hearth and upwards the left hearth ignites bituminous coal in the boiler; the invention solves the following problems that: 1. After the whole hot flue gas is downward to ignite the bituminous coal in the boiler, the flue gas directly enters to the subordinate heating surface for cooling and causes the problems that black smoke is emitted from the boiler, coal tar is condensed from the tube wall of the tail heating surface condenses and causes the block, the shut down of the boiler and the decrease of the thermal efficiency; 2. The desulphurization degree in the coal boiler is low; 3. The coal boiler has poor load adjusting performance; 4. The coal has slow burning speed, high manufacturing cost and large occupied area; 5. The coal boiler is uneasy to be large-sized. The invention has the advantages of higher burning efficiency, stronger coal-rank adaptability, better environmental protection and more reliable operation.
Description
Technical field
The invention belongs to the boiler technology field.Be specifically related to a kind of steam boiler and hot-water boiler that fires honeycomb briquet, international Patent classificating number: F23B 1/00.
Background technology
Because honeycomb briquet has added desulfurizing agent in manufacture process, and it is not loose after burning yet, therefore the boiler of honeycomb briquet of burning need not add deduster and desulfurizer, and its discharged flue gas dust content and sulfur dioxide concentration just can satisfy the requirement of GB13271 " emission standard of air pollutants for boilers ".Be allow to use the combustion honeycomb briquette boiler in some urban districts, and the fuel cost of combustion honeycomb briquette boiler only be approximately gas fired-boiler 1/2nd, oil burning boiler 1/4th, the sixth of electric boiler.Therefore, the combustion coal boiler has vast market prospect.Because moulded coal is with loosing the coal facies ratio, its specific area is much smaller, so the burning velocity of moulded coal is very slow, wants to reach design rating, and open grate area should be with loose 4 to 6 times of coal burning boiler of tonnage, causes boiler cost and boiler room floor space to increase; When hot flue gas heats into the stove soft coal with the enhanced type burning of coal from top to bottom in adopting stove, when low as if the fugitive constituent of moulded coal calorific capacity big or moulded coal, heating is newly gone into flue-gas temperature behind the stove soft coal and can be reduced and can contain a large amount of unburned fugitive constituent fuel gas, if this part flue gas directly enters the cooling of subordinate heating surface, can cause the boiler over-emitting black exhaust, cause heating surface to stop up blowing out, boiler heat loss is big at back-end surfaces condensation coal tar; The best desulfurization temperature of the desulfurizing agent that adds in the moulded coal is between 800 to 900 ℃, during the moulded coal of molded coal boiler burning in the past to there be long preheating time, therefore to be in time of best desulfurization temperature to the whole time period of coming out of the stove short from going into stove for moulded coal, and it is not high to take off the efficiency of furnace in the stove; According to the characteristics of molded coal boiler, coal load quantity is very big in the stove, so amount of stored heat is bigger in the moulded coal stove, and load is adjusted underaction; Because the moulded coal burning velocity is slow, the body of heater of molded coal boiler and manufacturing cost all increase a lot, bring difficulty for the maximization of molded coal boiler.
Summary of the invention
The objective of the invention is for addressing the problem: ignite the from top to bottom flue gas that produces behind the new coal of stove of hot flue gas enters directly that boiler over-emitting black exhaust, the back-end surfaces condensation coal tar that the cooling of next stage heating surface produces stops up heating surface pipe, boiler thermal output descends in the stove; Desulfuration in furnace efficient is not high; The molded coal boiler load is adjusted dumb; Boiler manufacturing cost that the moulded coal burning velocity causes slowly and boiler floor space increase; Molded coal boiler is difficult for maximizing.For address the above problem provide a kind of get on, get off from the heat production flue gas two-wayly ignite, high ature of coal adaptability, variable load combustion honeycomb briquette boiler are applicable to that the hot flue gas bidirectional of steam and hot-water boiler ignites, high ature of coal adaptability, variable load honeycomb type coal boiler.
When being used for steam boiler, it comprises: the end, sat; With the end sit is connected have preceding fire door, afterwards brick baffle under fire door, furnace wall, the water-cooled grate, to the horizontal brick baffle of adfluxion lower box part, the adjustable shutter of left side air compartment flow, right side air compartment shutter; The vapour stove along put the solid matter water-cooled grate tube with vapour stove water-cooled grate before in horizontal collection case and the vapour stove water-cooled grate horizontal collection case link together; The vapour stove along put rare draining black furnace comb with horizontal collection case in the vapour stove water-cooled grate and vapour stove water-cooled grate after horizontal collection case link together; Right side vapour stove has right side solid matter water-cooled grate bottom smoke door along putting the solid matter water-cooled grate tube; Left side vapour stove has solid matter water-cooled grate bottom, left side and advances Yan Men along putting the solid matter water-cooled grate tube; Be provided with right side burner hearth hogging in the burner hearth of right side; Be provided with left side burner hearth face arch, left side burner hearth rear arch in the burner hearth of left side; Convection bank with drum with the adfluxion case is coupled together; Threaded flue places in the drum; Pull bar couples together front tube sheet and drum; Be provided with vapour stove water level meter, vapour stove waterworks, the even vapour device of vapour stove, manhole device, blowdown apparatus, vapour stove feedwater induction apparatus in the drum; Aperture is adjustable, and left and right burner hearth of board plug type by-pass flue goalkeeper and front smoke box couple together; Outlet flue is connected with the drum rear end; The abrasionproof round steel is welded on the vapour stove along putting solid matter water-cooled grate tube and vapour stove along putting on rare draining black furnace comb, and the moulded coal pallet moves behind stove from the stokehold on the abrasionproof round steel; Steam boiler carbonated drink closed circuit is made up of two shunt circuits: i.e. (water) wall circuit and water-cooled grate loop.Interconnect and form the (water) wall circuit by down-comer, water-cooling wall next part case, water screen tube behind down-comer, the vapour stove (water) wall circuit before upper drum, the vapour stove (water) wall circuit; By horizontal collection case before down-comer, the vapour stove water-cooled grate before upper drum, the vapour stove water-cooled grate loop, vapour stove along putting horizontal collection case in solid matter water-cooled grate tube, the vapour stove water-cooled grate, vapour stove along putting down-comer behind horizontal collection case behind rare draining black furnace comb, the vapour stove water-cooled grate, the vapour stove water-cooled grate loop, vapour stove water-cooled grate loop being formed in adfluxion case, convection bank; Backplate is connected outside furnace wall and with furnace wall; Valve instrument places on the drum and with drum and is connected.Peephole is connected on furnace wall and with furnace wall.
When being used for hot-water boiler, it comprises: the end, sat; With the end sit is connected have preceding fire door, afterwards brick baffle under fire door, furnace wall, the water-cooled grate, to the horizontal brick baffle of adfluxion lower box part, the adjustable shutter of left side air compartment flow, right side air compartment shutter; The water stove along put the solid matter water-cooled grate tube with water stove water-cooled grate before in horizontal collection case and the water stove water-cooled grate horizontal collection case link together; The water stove along put rare draining black furnace comb with horizontal collection case in the water stove water-cooled grate and water stove water-cooled grate after horizontal collection case link together; Right side water stove has right side solid matter water-cooled grate bottom smoke door along putting the solid matter water-cooled grate tube; Left side water stove has solid matter water-cooled grate bottom, left side and advances Yan Men along putting the solid matter water-cooled grate tube; Be provided with right side burner hearth hogging in the burner hearth of right side; Be provided with left side burner hearth face arch, left side burner hearth rear arch in the burner hearth of left side; Convection bank with drum with the adfluxion case is coupled together; Threaded flue places in the drum; Pull bar couples together front tube sheet and drum; Be provided with water stove captation, manhole device, blowdown apparatus in the drum; Aperture is adjustable, and left and right burner hearth of board plug type by-pass flue goalkeeper and front smoke box couple together; Outlet flue is connected with the drum rear end; The abrasionproof round steel is welded on the water stove along putting solid matter water-cooled grate tube and water stove along putting on rare draining black furnace comb, and the moulded coal pallet moves behind stove from the stokehold on the abrasionproof round steel; The hot-water boiler water-flow circuit is made up of two shunt circuits: i.e. (water) wall circuit and convection bank loop.The water stove that links together by horizontal collection case before horizontal collection case, the water stove water-cooled grate in horizontal collection case, the water stove water-cooled grate behind upper drum, water stove (water) wall circuit power-failure protecting down-comer, water-cooling wall next part case, water screen tube, water stove communicating pipe, the water stove water-cooled grate and with above-mentioned three horizontal collection casees along put the solid matter water-cooled grate tube, the water stove interconnects the (water) wall circuit of forming forced circulation along putting rare draining black furnace comb; The convection bank loop of forming Natural Circulation by upper drum, convection bank, to adfluxion case, water stove convection bank loop down-comer; Backplate is connected outside furnace wall and with furnace wall; Valve instrument places on the drum and with drum and is connected.Peephole is connected on furnace wall and with furnace wall.
No matter in the present invention's left hearth or the right bearth, go into newly that the moulded coal of stove is very fast to be heated to ignition temperature by hot flue gas and to take fire, therefore after this kind of employing ignites mode, moulded coal becomes lime-ash after burn and comes out of the stove in the whole time period from going into stove, the time in the 800-900 ℃ of temperature range of being in accounts for moulded coal ratio of total residence time in stove and reaches more than 70%, so more in the past the ignited molded coal boiler of mode of desulfuration in furnace rate obviously improves.
Heated by hot flue gas owing to the moulded coal of newly going into stove is very fast and to have accelerated the speed that moisture and fugitive constituent are separated out, make moulded coal reach ignition point very soon, compare with moulded coal combustion system in the past, the burning velocity of moulded coal improves nearly one times, can reduce 50% with the molded coal boiler open grate area of capacity more in the past.This fully burns, reduces carbon content of cinder, guarantees design rating, reduces boiler manufacturing cost and boiler and boiler room floor space basic assurance is provided for moulded coal.
The aperture of the adjustable board plug type bypass flue gate of the described aperture that is provided with is adjustable, cooperate variable-frequency air-introduced machine, can adjust the allocation proportion that burner hearth rear portion flue gas directly enters convection bank and directly passes the flue gas of newly going into the stove soft coal flexibly, therefore can reach the purpose of flexible adjustment boiler load according to the size of production or the required thermic load of heat supply.
The present invention adopt right bearth downwards, the hot flue gas that makes progress of left hearth ignites after the stove soft coal mode, solve in the past molded coal boiler and be subjected to the moulded coal burning velocity slow and boiler volume and floor space that cause strengthen, and the problem that when developing than large-tonnage, is restricted of boiler.Therefore the maximization for molded coal boiler provides reliable assurance.
Flue gas flow direction of the present invention is as follows:
The right side burner hearth has right side burner hearth hogging 19, and left hearth has left side burner hearth face arch 4, left side burner hearth rear arch 10, and the structure of left and right burner hearth has asymmetry, and the flue gas flow direction of left hearth and right bearth also has asymmetry during the operation of band air-introduced machine.Flue gas flow when the band air-introduced machine is the boiler oepration at full load is: the hot flue gas that has been produced by the burning of the moulded coal of fully preheating of the postmedian of right bearth is newly gone into stove soft coal layer from right bearth and is passed from top to bottom, cigarette door 7 is advanced in this flue gas solid matter water-cooled grate bottom on the left of right side solid matter water-cooled grate bottom smoke door 8 enters afterwards, hot afterwards flue gas passes the soft coal layer that the left side burner hearth is newly gone into stove from bottom to top in solid matter water-cooled grate bottom, left side, this portion of hot flue gas mixes strongly with the elevated temperature heat flue gas that comes out in burner hearth rear arch 10 bottoms, left side and makes that flammable composition fully burns in the flue gas afterwards, hot flue gas after fully burning is from left side burner hearth face arch 4, the aditus laryngis that left side burner hearth rear arch is 10 flows out, afterwards along burner hearth rear arch 10 tops, left side to the stove rear to flowing, enter left side burner hearth outlet flue 32 afterwards, the flue gas that enters convection bank 26 afterwards flows to front smoke box 3 from back to front, and flue gas flows out boiler outlet flue 13 along threaded flue 15 from front to back from front smoke box 3 afterwards.The left side burner hearth when being not boiler at low load or pressure stove with air-introduced machine and the flue gas flow of right side burner hearth have symmetry.This moment, flue gas flow direction was: the hot flue gas that produces in left hearth and the right bearth all enters front smoke box 3 by the adjustable board plug type bypass flue gate 2 of aperture, and flue gas flows to outlet flue 13 along threaded flue 15 in the past backward afterwards.This flue gas flow can effectively solve boiler over-emitting black exhaust and back-end surfaces condensation coal tar when using the high-volatile moulded coal, heating surface and stop up the problem that blowing out, boiler thermal output descend.
The present invention has following beneficial effect:
Even the 1 moulded coal fugitive constituent that uses is very big or calorific value when low, guaranteeing that the new coal of stove comparatively fast is heated to ignition temperature with hot sweep of gases is under the enhanced type burning of coal prerequisite, boiler over-emitting black exhaust and flue gas can not take place yet in back-end surfaces tube wall condensation coal tar phenomenon.Therefore such boiler environment protecting is good, the thermal efficiency is high, the long-time running good reliability;
2, desulfuration in furnace efficient is improved more than 20 percentage points;
3, the burning velocity of moulded coal is enhanced about more than once, and can make the open grate area of molded coal boiler save 50%.Guaranteeing that molded coal boiler reaches under the design rating prerequisite, efficiently solving the problem that body of heater is big, manufacturing cost is high, the boiler room floor space reaches the difficult maximization of molded coal boiler greatly of molded coal boiler in the past.This type of moulded coal steam boiler accomplish 10 tons/time be feasible.Because the two-way of hot flue gas ignited, and the ignition point of newly going into type of furnace coal is shifted to an earlier date greatly, improved the moulded coal burning velocity, make boiler also can guarantee to exert oneself when using the moulded coal that calorific value is low, water content is big, so the ature of coal adaptability of boiler is wider;
4, can adjust boiler load flexibly according to producing or the heat supply requirement;
5, having solved hot flue gas from up to down ignites and newly goes into the hot and cold lamination that the flue gas that forms behind the stove soft coal produces and the fugitive constituent that causes is difficult for the problem of burning.
6, optimized the structure of the water-flow circuit of water-cooled grate and boiler body, the moulded coal pallet is reliably cooled off, water stove, vapour stove water-flow circuit are reasonable in design.The equipment investment and the floor space of saving boiler room internal cause water-cooled grate system and increasing.
Left and right burner hearth position described in this specification can be exchanged.
Body construction described in this specification is the extreme misery tubular construction, also can be arranged as water pipe structure.
Description of drawings
Fig. 1 is a front view of the present invention, also is left side burner hearth flue gas flow schematic diagram;
Fig. 2 is the flue gas flow schematic diagram of right side burner hearth;
Fig. 3 shows profile and flue gas flow figure for boiler side;
Fig. 4 is the A-A profile of Fig. 3;
Fig. 5 is the B-B profile of Fig. 3;
Fig. 6 is the body front view when being used for steam boiler;
Fig. 7 is the base side view when being used for steam boiler;
Fig. 8 is the body vertical view when being used for steam boiler;
Fig. 9 is the body front view when being used for hot-water boiler;
Figure 10 is the base side view when being used for hot-water boiler;
Figure 11 is the body vertical view when being used for hot-water boiler.
The specific embodiment
Embodiment 1:
When being used for steam boiler, it comprises: the end, sit 6; With the end sit 6 is connected have preceding fire door 5, afterwards brick baffle 9 under fire door 12, furnace wall 18, the water-cooled grate, to the horizontal brick baffle 54 of adfluxion lower box part, the adjustable shutter 11 of left side air compartment flow, right side air compartment shutter 20; The vapour stove along put solid matter water-cooled grate tube 39 with vapour stove water-cooled grate before in horizontal collection case 36 and the vapour stove water-cooled grate horizontal collection case 35 link together; The vapour stove along put rare draining black furnace comb 44 with horizontal collection case 35 in the vapour stove water-cooled grate and vapour stove water-cooled grate after horizontal collection case 34 link together; Right side vapour stove has right side solid matter water-cooled grate bottom smoke door 8 along putting solid matter water-cooled grate tube 39; Left side vapour stove has solid matter water-cooled grate bottom, left side and advances cigarette door 7 along putting solid matter water-cooled grate tube 39; Be provided with right side burner hearth hogging 19 in the burner hearth of right side; Be provided with left side burner hearth face arch 4, left side burner hearth rear arch 10 in the burner hearth of left side; Convection bank 26 with drum 14 with adfluxion case 33 is coupled together; Threaded flue 15 places in the drum 14; Pull bar 17 couples together front tube sheet 16 and drum 14; Be provided with vapour stove water level meter 29, vapour stove waterworks 24, the even vapour device 25 of vapour stove, manhole device 23, blowdown apparatus 22, vapour stove feedwater induction apparatus 28 in the drum 14; Aperture is adjustable, and board plug type bypass flue gate 2 couples together left and right burner hearth and front smoke box 3; Outlet flue 13 is connected with drum 14 rear ends; Abrasionproof round steel 37 is welded on the vapour stove along putting solid matter water-cooled grate tube 39 and vapour stove along putting on rare draining black furnace comb 44, and moulded coal pallet 31 moves behind stove from the stokehold on abrasionproof round steel 37; Steam boiler carbonated drink closed circuit is made up of two shunt circuits: i.e. (water) wall circuit and water-cooled grate loop.Interconnect and form the (water) wall circuit by down-comer 43, water-cooling wall next part case 38, water screen tube 30 behind down-comer 42, the vapour stove (water) wall circuit before upper drum 14, the vapour stove (water) wall circuit; By horizontal collection case 36 before down-comer 40, the vapour stove water-cooled grate before upper drum 14, the vapour stove water-cooled grate loop, vapour stove along putting horizontal collection case 35 in solid matter water-cooled grate tube 39, the vapour stove water-cooled grate, vapour stove along putting down-comer 41 behind horizontal collection case 34 behind rare draining black furnace comb 44, the vapour stove water-cooled grate, the vapour stove water-cooled grate loop, vapour stove water-cooled grate loop being formed in adfluxion case 33, convection bank 26; Backplate 27 is connected outside furnace wall 18 and with furnace wall; Valve instrument 1 places on the drum 14 and with drum 14 and is connected.Peephole 21 is connected on furnace wall and with furnace wall.
All before vapour stove feedwater induction apparatus 28 sprays into vapour stove water-cooled grate in the down-comer 40, feeding water then, horizontal collection case 36 enters the vapour stove along putting in the solid matter water-cooled grate tube 39 before vapour stove water-cooled grate in the boiler feedwater of vapour stove.This structural design can guarantee that the vapour stove of moulded coal steam boiler is fully cooled off along putting solid matter water-cooled grate tube 39.The feedwater of vapour stove horizontal collection case 36 before down-comer 40, the vapour stove water-cooled grate, vapour stove before vapour stove water-cooled grate loop enter horizontal collection case 35 in the vapour stove water-cooled grate along putting solid matter water-cooled grate tube 39, in the drum stove water behind vapour stove water-cooled grate loop behind down-comer 43, the vapour stove water-cooled grate horizontal collection case 34, vapour stove enter horizontal collection case 35 in the vapour stove water-cooled grate along putting rare draining black furnace comb 44.Above-mentioned two loops are as total down-comer in vapour stove water-cooled grate loop, by the riser circuit of adfluxion case 33, convection bank 26, drum 14 being formed vapour stove water-cooled grate loop.This structural design had both fully guaranteed the reliable cooling of fire grate, make water-cooled grate tube and boiler body be designed to a bulk loop again, remove the expense that the independent circulation of water-cooled grate tube also will be provided with independent circulating pump and cyclic water tank and increase and the boiler room floor space of increase from.
Embodiment 2:
When being used for hot-water boiler, it comprises: the end, sit 6; With the end sit 6 is connected have preceding fire door 5, afterwards brick baffle 9 under fire door 12, furnace wall 18, the water-cooled grate, to the horizontal brick baffle 54 of adfluxion lower box part, the adjustable shutter 11 of left side air compartment flow, right side air compartment shutter 20; The water stove along put solid matter water-cooled grate tube 51 with water stove water-cooled grate before in horizontal collection case 46 and the water stove water-cooled grate horizontal collection case 47 link together; The water stove along put rare draining black furnace comb 53 with horizontal collection case 47 in the water stove water-cooled grate and water stove water-cooled grate after horizontal collection case 48 link together; Right side water stove has right side solid matter water-cooled grate bottom smoke door 8 along putting solid matter water-cooled grate tube 51; Left side water stove has solid matter water-cooled grate bottom, left side and advances cigarette door 7 along putting solid matter water-cooled grate tube 51; Be provided with right side burner hearth hogging 19 in the burner hearth of right side; Be provided with left side burner hearth face arch 4, left side burner hearth rear arch 10 in the burner hearth of left side; Convection bank 26 with drum 14 with adfluxion case 33 is coupled together; Threaded flue 15 places in the drum 14; Pull bar 17 couples together front tube sheet 16 and drum 14; Be provided with water stove captation 49, manhole device 23, blowdown apparatus 22 in the drum 14; Aperture is adjustable, and board plug type bypass flue gate 2 couples together left and right burner hearth and front smoke box 3; Outlet flue 13 is connected with drum 14 rear ends; Abrasionproof round steel 37 is welded on the water stove along putting solid matter water-cooled grate tube 51 and water stove along putting on rare draining black furnace comb 53, and moulded coal pallet 31 moves behind stove from the stokehold on abrasionproof round steel 37; The hot-water boiler water-flow circuit is made up of two shunt circuits: i.e. (water) wall circuit and convection bank loop.The water stove that links together by horizontal collection case 46 before horizontal collection case 47, the water stove water-cooled grate in horizontal collection case 48, the water stove water-cooled grate behind upper drum 14, water stove (water) wall circuit power-failure protecting down-comer 50, water-cooling wall next part case 38, water screen tube 30, water stove communicating pipe 45, the water stove water-cooled grate and with above-mentioned three horizontal collection casees along put solid matter water-cooled grate tube 51, the water stove interconnects the (water) wall circuit of forming forced circulation along putting rare draining black furnace comb 53; The convection bank loop of forming Natural Circulation by upper drum 14, convection bank 26, to adfluxion case 33, water stove convection bank loop down-comer 52; Backplate 27 is connected outside furnace wall 18 and with furnace wall; Valve instrument 1 places on the drum 14 and with drum 14 and is connected.Peephole 21 is connected on furnace wall and with furnace wall.
The water-cooled grate tube of preceding high back low strap gradient can make steam bubble be pulled away.Can effectively prevent the steam binding phenomenon that water-cooled grate tube steams greatly because of local heat flux density, make water-cooled grate tube can obtain more reliable cooling.
The backwater of water stove enters water stove water-cooled grate rear set box 48, the water stove flow through again along putting rare draining black furnace comb 53, enter horizontal collection case 47 in the water stove water-cooled grate afterwards, the water stove flow through afterwards again along putting solid matter water-cooled grate tube 51, enter the preceding horizontal collection case 46 of water stove water-cooled grate afterwards, by entering water-cooling wall next part case 38 water stove communicating pipe 45, the water screen tube of flowing through afterwards enters drum 14 afterwards.The structure that this boiler body and water-cooled grate tube are designed to one had both guaranteed the reliable cooling of water-cooled grate, made the circulation of boiler body water safer again.
Other is identical with embodiment 1.
The course of work of the present invention is: moulded coal advances burner hearth from preceding fire door 5 by pushing away device for coal.When the band air-introduced machine was the boiler oepration at full load: the high-temperature flue gas from top to down that the right bearth postmedian has been produced by the burning of the moulded coal of fully preheating is newly gone into stove from the right bearth stokehold moulded coal layer passed, furnace front was newly gone into below the type of furnace coal seam on the left of this partial fume entered to by prolate square tobacco door afterwards, hot afterwards flue gas is newly gone into the moulded coal layer of stove from the bottom-up left side burner hearth that passes in type of furnace coal seam of newly going into of left side furnace front, this part flue gas mixes strongly with the high-temperature flue gas of left side burner hearth rear arch 10 bottom moulded coal burning generations and the flammable composition in the flue gas is fully burnt afterwards, flue gas after fully burning afterwards flows to left side burner hearth outlet flue 32 from front to back along burner hearth rear arch 10 tops, left side, flue gas flows to front smoke box from back to front along convection bank 26 afterwards, flue gas flow to the boiler outlet flue along threaded flue 15 behind stove from the stokehold afterwards, flue gas flows to air-introduced machine through flue afterwards, and flue gas enters atmosphere through chimney afterwards.When with air-introduced machine not being boiler at low load operation or pressure stove: the hot flue gas that produces in left hearth and the right bearth all enters front smoke box 3 by the adjustable board plug type bypass flue gate 2 of aperture, flue gas flows to outlet flue 13 along threaded flue 15 in the past backward afterwards, and flue gas enters atmosphere behind flue, chimney afterwards.Slag after burning is discharged out of the furnace by back fire door 12.
Embodiment 3:
In the burner hearth of left side, be provided with left side burner hearth hogging 19; In the burner hearth of right side, be provided with right side burner hearth face arch 4, right side burner hearth rear arch 10; Other is identical with embodiment 1.
Embodiment 4:
In the burner hearth of left side, be provided with left side burner hearth hogging 19; In the burner hearth of right side, be provided with right side burner hearth face arch 4, right side burner hearth rear arch 10; Other is identical with embodiment 2.
Claims (7)
- Hot flue gas bidirectional ignite, high ature of coal adaptability, variable load combustion honeycomb briquette boiler, it comprises: (6) are sat at the end; With the end sit that (6) is connected have preceding fire door (5), afterwards brick baffle (9) under fire door (12), furnace wall (18), the water-cooled grate, to the horizontal brick baffle of adfluxion lower box part (54), right side air compartment shutter (20); Convection bank (26) with drum (14) with adfluxion case (33) is coupled together; Threaded flue (15) places in the drum (14); Pull bar (17) couples together front tube sheet (16) and drum (14) and water-flow circuit;It is characterized in that: the end sit (6) be provided with the left side adjustable shutter of air compartment flow (11), vapour stove along put solid matter water-cooled grate tube (39) with vapour stove water-cooled grate before in horizontal collection case (36) and the vapour stove water-cooled grate horizontal collection case (35) link together; The vapour stove along put rare draining furnace grate tube (44) with horizontal collection case (35) in the vapour stove water-cooled grate and vapour stove water-cooled grate after horizontal collection case (34) link together; Right side vapour stove has right side solid matter water-cooled grate bottom smoke door (8) along putting solid matter water-cooled grate tube (39); Left side vapour stove has solid matter water-cooled grate bottom, left side and advances Yan Men (7) along putting solid matter water-cooled grate tube (39); Be provided with right side burner hearth hogging (19) in the burner hearth of right side; Be provided with left side burner hearth face arch (4), left side burner hearth rear arch (10) in the burner hearth of left side; Bypass flue gate (2) couples together left and right burner hearth and front smoke box (3); Abrasionproof round steel (37) is welded on the vapour stove, and solid matter water-cooled grate tube (39) and vapour stove are suitable to be put on rare draining black furnace comb (44) along putting, and steam boiler carbonated drink closed circuit is made up of two shunt circuits: i.e. (water) wall circuit and water-cooled grate loop; Interconnect and form the (water) wall circuit by down-comer (43), water-cooling wall next part case (38), water screen tube (30) behind down-comer (42), the vapour stove (water) wall circuit before upper drum (14), the vapour stove (water) wall circuit; By horizontal collection case (36) before down-comer (40) before upper drum (14), the vapour stove water-cooled grate loop, the vapour stove water-cooled grate, vapour stove along putting horizontal collection case (35) in solid matter water-cooled grate tube (39), the vapour stove water-cooled grate, vapour stove along putting down-comer (41) behind horizontal collection case (34) behind rare draining black furnace comb (44), the vapour stove water-cooled grate, the vapour stove water-cooled grate loop, vapour stove water-cooled grate loop being formed in adfluxion case (33), convection bank (26).
- Hot flue gas bidirectional ignite, high ature of coal adaptability, variable load combustion honeycomb briquette boiler, it comprises: (6) are sat at the end; With the end sit that (6) is connected have preceding fire door (5), afterwards brick baffle (9) under fire door (12), furnace wall (18), the water-cooled grate, to the horizontal brick baffle of adfluxion lower box part (54), right side air compartment shutter (20); Convection bank (26) with drum (14) with adfluxion case (33) is coupled together; Threaded flue (15) places in the drum (14); Pull bar (17) couples together front tube sheet (16) and drum (14) and water-flow circuit;It is characterized in that: the end sit (6) be provided with the left side adjustable shutter of air compartment flow (11), water stove along put solid matter water-cooled grate tube (51) with water stove water-cooled grate before in horizontal collection case (46) and the water stove water-cooled grate horizontal collection case (47) link together; The water stove along put rare draining furnace grate tube (53) with horizontal collection case (47) in the water stove water-cooled grate and water stove water-cooled grate after horizontal collection case (48) link together; Right side water stove has right side solid matter water-cooled grate bottom smoke door (8) along putting solid matter water-cooled grate tube (51); Left side water stove has solid matter water-cooled grate bottom, left side and advances Yan Men (7) along putting solid matter water-cooled grate tube (51); Be provided with right side burner hearth hogging (19) in the burner hearth of right side; Be provided with left side burner hearth face arch (4), left side burner hearth rear arch (10) in the burner hearth of left side; Bypass flue gate (2) couples together left and right burner hearth and front smoke box (3); Abrasionproof round steel (37) is welded on the water stove, and solid matter water-cooled grate tube (51) and water stove are suitable to be put on rare draining black furnace comb (53) along putting, and the hot-water boiler water-flow circuit is made up of two shunt circuits: i.e. (water) wall circuit and convection bank loop; (water) wall circuit wherein is by upper drum (14); water stove (water) wall circuit power-failure protecting down-comer (50); water-cooling wall next part case (38); water screen tube (30); water stove communicating pipe (45); horizontal collection case (48) behind the water stove water-cooled grate; horizontal collection case (47) in the water stove water-cooled grate; horizontal collection case (46) before the water stove water-cooled grate; and the water stove that above-mentioned three horizontal collection casees are linked together is along putting solid matter water-cooled grate tube (51); the water stove interconnects the water-flow circuit of forming forced circulation along putting rare draining black furnace comb (53).
- According to claim 1 or 2 described hot flue gas bidirectionals ignite, high ature of coal adaptability, variable load honeycomb type coal boiler, it is characterized in that: the structure of left hearth and right bearth has asymmetry.
- According to claim 1 or 2 described hot flue gas bidirectionals ignite, high ature of coal adaptability, variable load honeycomb type coal boiler; It is characterized in that: when the band air-introduced machine is the boiler oepration at full load, the flue gas flow direction of left hearth and right bearth has asymmetry, that is: its flue gas flow direction is that the hot flue gas that has been produced by the burning of the moulded coal of fully preheating of the postmedian of right bearth is newly gone into stove soft coal layer from right bearth and passed from top to bottom, Yan Men (7) is advanced in this flue gas solid matter water-cooled grate bottom on the left of right side solid matter water-cooled grate bottom smoke door (8) enters afterwards, hot afterwards flue gas passes the soft coal layer that the left side burner hearth is newly gone into stove from bottom to top in solid matter water-cooled grate bottom, left side, this portion of hot flue gas mixes strongly with the elevated temperature heat flue gas that comes out in left side burner hearth rear arch (10) bottom and makes that flammable composition fully burns in the flue gas afterwards, hot flue gas after fully burning is from left side burner hearth face arch (4), aditus laryngis between left side burner hearth rear arch (10) flow out the back along left side burner hearth rear arch (10) top to the stove rear to flowing, enter left side burner hearth outlet flue (32) afterwards, the flue gas that enters convection bank (26) afterwards flows to front smoke box (3) from back to front, and flue gas flows out boiler outlet flue (13) along threaded flue (15) from front to back from front smoke box (3) afterwards.
- According to claim 1 or 2 described hot flue gas bidirectionals ignite, high ature of coal adaptability, variable load honeycomb type coal boiler; It is characterized in that: solid matter water-cooled grate bottom, described left side advances Yan Men (7) and right side solid matter water-cooled grate bottom smoke door (8) is that prolate is square, and long and wide ratio is greater than 2.5.
- According to claim 1 or 2 described hot flue gas bidirectionals ignite, high ature of coal adaptability, variable load honeycomb type coal boiler; It is characterized in that: described bypass flue gate (2) is the adjustable board plug type of aperture, and the top and the front smoke box (3) of left and right burner hearth is connected.
- According to claim 1 or 2 described hot flue gas bidirectionals ignite, high ature of coal adaptability, variable load honeycomb type coal boiler, it is characterized in that: in the burner hearth of left side, be provided with left side burner hearth hogging (19); In the burner hearth of right side, be provided with right side burner hearth face arch (4), right side burner hearth rear arch (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100563410A CN100565030C (en) | 2007-11-23 | 2007-11-23 | Hot flue gas bidirectional ignites, high ature of coal adaptability, variable load honeycomb type coal boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100563410A CN100565030C (en) | 2007-11-23 | 2007-11-23 | Hot flue gas bidirectional ignites, high ature of coal adaptability, variable load honeycomb type coal boiler |
Publications (2)
| Publication Number | Publication Date |
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| CN101206075A true CN101206075A (en) | 2008-06-25 |
| CN100565030C CN100565030C (en) | 2009-12-02 |
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| CNB2007100563410A Expired - Fee Related CN100565030C (en) | 2007-11-23 | 2007-11-23 | Hot flue gas bidirectional ignites, high ature of coal adaptability, variable load honeycomb type coal boiler |
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| CN (1) | CN100565030C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767818A (en) * | 2012-07-19 | 2012-11-07 | 江苏太湖锅炉股份有限公司 | Boiler structure with boiler barrel and headers |
| CN103175297A (en) * | 2013-04-23 | 2013-06-26 | 董珊 | Water heating boiler |
| CN105841162A (en) * | 2016-05-25 | 2016-08-10 | 潍坊金丝达新能源科技有限公司 | Multifunctional biomass high-temperature gasification boiler burner |
| CN105864747A (en) * | 2016-05-25 | 2016-08-17 | 潍坊金丝达新能源科技有限公司 | Improved biomass high-temperature gasification boiler combustor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT259818B (en) * | 1963-08-09 | 1968-02-12 | Hovalwerk Ag Ospelt | Heating boiler |
| CN87212630U (en) * | 1987-12-18 | 1988-08-03 | 中国建筑标准设计研究所 | Coal storage type hot water heating boiler burning smoke which is returned from below |
| CN2040216U (en) * | 1988-10-15 | 1989-06-28 | 冯绍宗 | Small water-pipe steam and water boiler |
| CN2510727Y (en) * | 2001-12-28 | 2002-09-11 | 王森 | Horizontal normal-pressure high-temp. steam boiler |
| CN2773554Y (en) * | 2004-09-21 | 2006-04-19 | 田苗 | Constant-pressure hot-water boiler of grate with honeycomb section coal chain |
| CN2763739Y (en) * | 2005-01-20 | 2006-03-08 | 姜希申 | Heat-exchanger type water heating boiler |
| CN2833416Y (en) * | 2005-07-26 | 2006-11-01 | 周成福 | briquette-fired hot water boiler with tube row type heat exchange |
| CN2909097Y (en) * | 2006-03-15 | 2007-06-06 | 申永强 | Vapour-water two-use energy-saving briquette boiler |
-
2007
- 2007-11-23 CN CNB2007100563410A patent/CN100565030C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767818A (en) * | 2012-07-19 | 2012-11-07 | 江苏太湖锅炉股份有限公司 | Boiler structure with boiler barrel and headers |
| CN103175297A (en) * | 2013-04-23 | 2013-06-26 | 董珊 | Water heating boiler |
| CN103175297B (en) * | 2013-04-23 | 2015-05-20 | 董珊 | Water heating boiler |
| CN105841162A (en) * | 2016-05-25 | 2016-08-10 | 潍坊金丝达新能源科技有限公司 | Multifunctional biomass high-temperature gasification boiler burner |
| CN105864747A (en) * | 2016-05-25 | 2016-08-17 | 潍坊金丝达新能源科技有限公司 | Improved biomass high-temperature gasification boiler combustor |
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| Publication number | Publication date |
|---|---|
| CN100565030C (en) | 2009-12-02 |
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