CN2566182Y - Aperiodic burning boiler with fixed grate - Google Patents

Abstract

The utility model relates to an aperiodic burning boiler with a fixed grate, which comprises a coal bunker, a jacket boiler arch, etc., wherein, the lower part of the back wall of the boiler is connected with the coal bunker; the water jacket boiler arch is connected with a convection pipe through penetrating both side walls; the fixed grate and an inverting grate are arranged on a base; coal can be fed from the coal bunker and can enter the fixed grate and the inverting grate through a hearth; the coal can be uniformity arranged; the upper end of the coal feeding port of the back wall of the stove and the back part of the fixed grate always form a coal pile layer with a 45 DEG angle; a preheating dry distillation zone behind the fixed grate, a middle high-temperature combustion zone and a front ash burning zone of the inverting grate are formed under the condition of the ignition of the water jacket arch and the perturbation of secondary air. The utility model fundamentally solves the problem of black smoke caused by the coal feeding intermittence and the burning periodicity of a hand firing fixed grate. The utility model is good for the layout of grate area and heating area; a draught fan can not be used; the utility model has the advantages of natural ventilation, compact structure, small size, high heat inefficiency, sufficient force, simple operation, no failure of the grate, environment protection and energy saving.

Description

A kind of fixed grate boiler of aperiodicity burning

Technical field

The utility model relates to a kind of boiler, i.e. coal burning water heating heating boiler, drinking water boiler, bath furnace, constant-pressure and high-temperature steam boiler.

Technical background

Middle-size and small-size hot-water boiler salable in the market roughly divides two big classes, and a kind of is machine burning, as: chain grate boiler; A kind of is that hand burns, as: fixed grate boiler, they respectively have its pluses and minuses, and the advantage of machine burning chain-grate boiler is: burning periodically, can not solve over-emitting black exhaust, and environment protection standard reduces labour intensity; Shortcoming is: operational administrative complexity, cost height, fault rate height.Hand bakes the advantage of deciding furnace grate: simple to operate, fault rate is low, and cost is low; Shortcoming is: over-emitting black exhaust, environmental protection are not up to standard, labour intensity is big, cause is the batch (-type) coal, periodically burning, since the history expert and the never difficult problem of solution of going together, therefore at present national environmental protection forbids that 1 ton bakes the use of deciding fire grate with left-hand seat, and what environmental requirement was high also beginning restriction below 1 ton.

The utility model content

The utility model and present domestic all fixed grate boilers different be exactly the coal and the inflexible fire of boiler be in antipodal direction operation, fundamentally solve hand and baked a difficult problem of deciding fire grate combustion period over-emitting black exhaust, solved the tired frequently trouble of batch (-type) coal, coal bunker is filled it up with can be continuously for operation more than 4 hours.The cinder of after-flame is directly translated in the water seal hole by dump grate, can pass through the slag remover deslagging, the also available artificial slagging-off of concentrating.The utility model reaches desulfurization and dedusting from 0.2 ton to 6 tons without the air-introduced machine gravity-flow ventilation, the national environmental standard in one class area, on volume and floor space, can reduce more than one times than machine burning stove, be up to state standards fully from the thermal efficiency with on exerting oneself, from manipulation strength, alleviate greatly, can guarantee fully normally to move and super-strength not, can reach fault-free substantially from the fault rate upper fire-grating.

The utility model is not have periodic combustion to make initiate coal carry out then the burn principle of after-flame of drying, destructive distillation earlier according to the machine burning stove, a difficult problem of periodically burning at handwarmer batch (-type) coal is conceived and is designed to slag tap with the complete rightabout coal of domestic all machine burning stoves at present, arrests fire with the complete rightabout coal of domestic all handwarmers at present.

Elaborate in conjunction with example figure.

Description of drawings

Fig. 1 is the utility model front view.

Fig. 2 is that the utility model left side is looked and partly cutd open figure.

Fig. 3 is the utility model vertical view.

Among the figure: the 1st, secondary wind inlet house steward, the 2nd, secondary wind inlet arm, the 3rd, fire door, the 4th, secondary wind outlet, the 5th, ash disposal mouth, the 6th, water leg chimney arch, the 7th, two return smoke pipe, the 8th, stokehold wall, the 9th, stokehold inwall, 10 ash disposal mouths, 11 delivery ports, the 12nd, Pressure gauge, the 13rd, exhaust opening, the 14th, cover roof, the 15th, cover top inwall, the 16th, atmosphere entry, the 17th, convection tube, the 18th, stove rear wall, the 19th, smoke baffle plate, 20 is three backhaul flues, the 21st, coal bunker, the 22nd, burner hearth, the 23rd, burner hearth coal feed point, the 24th, fire grate cross-arm, 25 is wind outlets, the 26th, and fixed grate, the 27th, dump grate, the 28th, furnace base, the 29th, blow-off pipe, the 30th, water inlet, the 31st, water leg, the 32nd, furnace side inwall, the 33rd, furnace sidewall, 34 bodies of heater, the 35th, air door, 36 furnace bottoms envelope.

The specific embodiment

The fixed grate boiler of its structure of the utility model a kind of no periodic burning as shown in Figure 1, comprise: body of heater 34, rear end lower from underseal 36 1 segment distances upwards and about at stove rear wall 18 blow-on thorax coal feed points 23, about making progress, its end opening edge is connected coal bunker 21 with the stove rear wall, stokehold wall 8 and stokehold inwall 9 installation fire doors 3 are passed from underseal 36 1 segment distances in body of heater 34 front end bottoms, from descending most row's convection tube 17 1 segment distances to pass furnace side inwall 32, from stokehold inwall one segment distance water leg chimney arch 6 is installed, ash disposal mouth 5,10 pass stokehold wall 8 and stokehold inwall 9 over against chimney arch 6 with above the smoke baffle plate 19, pass stokehold wall 8 and delivery port 11 is installed from its top one segment distance, at cover roof 14 anterior setting pressure tables 12 respectively, exhaust opening 13, at its rear portion atmosphere entry 16 is installed, in convection tube 17 vertical centres or off-centre, locate from the furnace wall 18 1 segment distances and dividing plates 19 are installed near stokehold inwall 9 and furnace side inwall 32, water leg chimney arch 6 with a certain distance from furnace bottom envelope 36 to, the rear portion is connected with stove rear wall 18, have a down dip forward from stokehold inwall 9 one segment distances, pass both sides inwall 32 and connect.Encircleing 6 levels from stove rear wall 18 1 segment distances and water leg passes furnace sidewall 33 and is installed into the mouth of a river 30, furnace base 28 tops and is connected with furnace bottom envelope 36, seal 36 to next segment distance from furnace bottom, anterior and dump grate 27 rear ends near, rear portion and stove rear wall 18 are near fire grate cross-arm 24 is installed, the Plane Installation fixed grate 26 thereon, near secondary wind inlet house steward dump grate 27 is installed, near stokehold inwall 9 two ends secondary wind inlet arm is installed, secondary wind outlet is installed in the top, at stove seat 28 both sides and wind house steward of rear portion installation and air outlet 25.At water leg chimney arch 6 segment distance upwards, pass furnace side inwall 32 uniform convection tubes 17.

Its water route, water enters water leg 31 and water leg chimney arch 6 to whole body of heater 34 by import 30, penetrates heating and convection tube 17 Convective Heating by burner hearth 22 width of cloth, and cold water decline, hot water rise to delivery port 11 and are sent to system.

Its cigarette road, from coal bunker 21 coals, by burner hearth import 23, enter fixed grate 26 rear ends, manually even to dump grate from fire door 3 operation shops, after the igniting normal combustion, open wind 26 secondary wind 4 under the igniting of water leg chimney arch 6, under the injection disturbance of secondary wind and under the effect of a wind 26, fully burn, form anterior after-flame section gradually, middle part burning zone, rear portion preheating retort section, the lime-ash in afterburnt ploughs under in the water seal hole by dump grate 27, manually the coal of middle part burning is shifted to the front portion, the coal of rear portion destructive distillation is shifted to the stage casing, being in burning does not all the time have periodic blockiness burning, high-temperature flue gas encircles 6 leading portion spaces through water leg and enters two or three backhaul flues 7,20, process and convection tube 17 and stokehold inwall 9, side inwall 32, cover top inwall 15 width of cloth are discharged from exhaust opening 13 after penetrating Convective Heating.

Claims (7)

1, a kind of fixed grate boiler of aperiodicity burning, comprise: coal bunker 21, fire door 3, fixed grate 26, dump grate 27, water leg chimney arch 6 etc., it is characterized in that stove rear wall 18 bottoms and burner hearth coal feed point 23 following levels upwards install coal bunker 21, seal 36 1 segment distances from furnace bottom, pass stokehold wall 8 and boiler tube inwall 9 installation fire doors 3.

2, the fixed grate boiler of a kind of aperiodicity burning according to claim 1 is characterized in that below furnace bottom envelope 36 fixed grate 26 being housed above the fire grate cross-arm, at its horizontal front end dump grate 27 is housed.

3, the fixed grate boiler of a kind of aperiodicity burning according to claim 1, it is characterized in that water leg chimney arch 6 with a certain distance from furnace bottom envelope 36 upwards, the rear portion is connected with stove rear wall 18, has a down dip forward from stokehold inwall 9 one segment distances, passes both sides inwall 32 and connects.

4, the fixed grate boiler of a kind of aperiodicity burning according to claim 1 is characterized in that convection tube 17 from chimney arch 6, smoke baffle plate 10 segment distance upwards respectively, passes both sides inwall 32 and connects.

5, the fixed grate boiler of a kind of aperiodicity burning according to claim 1, it is characterized in that furnace base 28 front ends backward with dump grate 27 near, the upper end seals 36 near secondary wind inlet house steward 1 is installed with furnace bottom, from side inwall 32 1 segment distances, near stokehold inwall 9, pass furnace bottom envelope 36 and upwards be higher than fire door 3 upper ends and secondary wind inlet arm 2 is installed is communicated with, in furnace base 28 both sides, be provided with a wind and export 25 with secondary wind outlet 4.

6, the fixed grate boiler of a kind of aperiodicity burning according to claim 1, it is characterized in that at water leg chimney arch 6, smoke baffle plate 19 upper water flat front end, pass the stokehold wall and stokehold inwall 8,9 is equipped with ash disposal mouth 5,10, from stokehold inwall 9 one segment distances, pass cover roof and cover top inwall 14,15 installation exhaust openings 13.

7, the fixed grate boiler of a kind of aperiodicity burning according to claim 1, it is characterized in that encircleing 6 horizontal levels from stove rear wall 18 1 segment distances and water leg passes furnace sidewall 33 and be installed into the mouth of a river 30, pass stokehold wall 8 at end center, stokehold from furnace roof end one segment distance delivery port 11 is installed, each segment distance passes cover roof 14 setting pressure tables 12, atmosphere entry 16 respectively from the stove front-end and back-end.

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