CN202371701U - Efficient chain furnace - Google Patents

Efficient chain furnace Download PDF

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Publication number
CN202371701U
CN202371701U CN2011205367860U CN201120536786U CN202371701U CN 202371701 U CN202371701 U CN 202371701U CN 2011205367860 U CN2011205367860 U CN 2011205367860U CN 201120536786 U CN201120536786 U CN 201120536786U CN 202371701 U CN202371701 U CN 202371701U
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CN
China
Prior art keywords
arch
burner hearth
hanging
traveling
chain furnace
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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
CN2011205367860U
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Chinese (zh)
Inventor
谭佩仪
Original Assignee
谭佩仪
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Filing date
Publication date
Application filed by 谭佩仪 filed Critical 谭佩仪
Priority to CN2011205367860U priority Critical patent/CN202371701U/en
Application granted granted Critical
Publication of CN202371701U publication Critical patent/CN202371701U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

An efficient chain furnace includes a coal hopper, a front arch, a rear arch, a boiler body, a hearth, an igniter, and a chain grate device; the hearth is arranged below the boiler body, and the chain grate device is arranged below the hearth; the coal hopper is arranged above the chain grate device; the igniter is arranged in the hearth, the front arch is arranged at a hearth inlet, a lifting arch is arranged in the hearth and is connected with the front arch, the connection part of the lifting arch and the front arch is closed, a pre-combustion zone is formed between the lifting arch and the hearth, and a combustion zone is formed between the lifting arch and the rear arch; and the utility model relates to a boiler, in particular to the efficient chain boiler, and aims to provide the efficient chain boiler with high combustion efficiency.

Description

A kind of efficient chain furnace
Technical field
The utility model relates to a kind of boiler, particularly a kind of efficient chain furnace.
Background technology
Chain furnace is the higher a kind of grate furnace of mechanization degree.Because of being similar to the chain-type crawler belt, its H fire grate H gains the name.Be to use more a kind of type of furnace in the Industrial Boiler,, even in the low capacity boiler of 1-2t/h employing arranged all in the 10-65t/h intermediate size.Chain furnace is to raise the formula stove before a kind of, and the burning of coal process is accomplished in moving, its stable combustion condition, and the thermal efficiency is higher, and operation makes things convenient for, and labour intensity is low, and smoke dust discharge concentration is lower.It belongs to the single face ignition mode, and fuel does not have self disturbance during operation, along fire grate length direction fuel bed tangible subregion is arranged.For making combustible and the fly ash combustible material after-flame in the fuel, can adopt " secondary wind ".Because ignition condition is bad, poke fire and necessary manually-operated, so it is inappropriate for the coal that branch is very big, ash content is many again, coking capacity is strong of heating up water.Its another shortcoming is that metal consumption is big.
And chain furnace ubiquity now the not high problem of fuel utilization ratio, and its efficient is generally 65%-70%, and this will cause a large amount of wastings of resources, and the fuel combustion in the boiler is insufficient, and the waste residue of discharging and waste gas will cause very big pollution to environment.
The utility model content
It is the high efficient chain furnace of efficiency of combustion that the utility model purpose is to provide a kind of.
A kind of efficient chain furnace comprises coal bunker, face arch, rear arch, pot body, burner hearth, igniter and traveling-grate stoker device; Said burner hearth is located at a pot body below, and the traveling-grate stoker device is located at the burner hearth below; Said coal bunker is located at traveling-grate stoker device top; Igniter is located in the burner hearth, and face arch is located at burner hearth import department, is provided with hanging arch in the said burner hearth, and hanging arch and face arch join, and hanging arch and face arch joint are closed, form preignition zone between hanging arch and burner hearth import, form the combustion zone between hanging arch and rear arch.
Be provided with hanging arch in the burner hearth, hanging arch and face arch join, and hanging arch is closed mutually with the face arch joint; Form preignition zone between hanging arch and burner hearth import, carry out preheating to coal charge at preignition zone, can produce the inadequate waste gas of burning in the warm; This moment, hanging arch rested on this to the inadequate waste gas of burning, and it is burnt once more, not only made fuel combustion more abundant; Also make the burning liberated heat more, the efficient of boiler is improved, practiced thrift the energy simultaneously; Reduced exhaust gas discharging, thereby reduced pollution environment; And form the combustion zone between hanging arch and rear arch, and make coal charge after fully burning in the combustion zone, the flue gas that rear arch can make burning produce fully mixes, and guarantees that fuel combustion is abundant.
Preferably, said hanging arch to burner hearth import one side and burner hearth import level at a distance of 1.4-1.6 rice.
Preferably, the vertical 0.4-0.6 rice apart in said hanging arch bottom surface with the traveling-grate stoker device.
Hanging arch to burner hearth import one side and burner hearth import level at a distance of 1.4-1.6 rice; Guaranteed that coal charge has enough room and times to carry out pre-burning at preignition zone; And the hanging arch bottom surface is vertical with the traveling-grate stoker device at a distance of 0.4-0.6 rice; Make waste gas be not easy to leave preignition zone, thereby the inadequate waste gas of more burnings rest in the preignition zone and burn.
Preferably, said face arch is inclined-plane or cambered surface, and said hanging arch is vertically installed in the junction of face arch and pot body.
Preferably, said rear arch length is 2.2-3.2 rice, rear arch to burner hearth import one side and burner hearth import level at a distance of 2.2-3.2 rice, the vertical 0.4-0.6 rice apart in back intrados with the traveling-grate stoker device.
Rear arch length is 2.2-3.2 rice, has guaranteed the length of rear arch, has guaranteed that coal charge burns away to the distance of extinguishing, and rear arch to burner hearth import one side and burner hearth import level at a distance of 2.2-3.2 rice, guaranteed to let coal charge be fully burned in the space of combustion zone.
Preferably, said traveling-grate stoker device is provided with shell outward, and shell is provided with deslagging device; Said deslagging device is located at the end of traveling-grate stoker device transporting direction.
Shell is provided with deslagging device, in order to the waste residue behind the collection coal burning, has avoided the direct environmental pollution caused by discharge of waste residue.
Preferably, the shell of said pot body is provided with exterior wall, and exterior wall and face arch join.
The shell of pot body is provided with exterior wall, not only can fix the position of pot body, and a pot body is isolated from the outside, and has reduced scattering and disappearing of heat on the pot body, heat utilization efficiency is got a promotion, thereby has reduced the use amount of coal charge.
Preferably, be provided with guide plate in the said burner hearth, guide plate is located at the rear arch top.
Guide plate is located at rear arch top, dust behind the coal burning is concentrated gathered, and reduces the dust that accumulates in other positions, has made things convenient for cleaning and maintenance in the future, the stability that has kept boiler to use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
The embodiment of the utility model is as shown in Figure 1, comprises coal bunker 3, face arch 4, rear arch 9, pot body 7, burner hearth 11, igniter 2 and traveling-grate stoker device 1; Be provided with shell 12 outside the said traveling-grate stoker device 1, shell 12 is provided with deslagging device 10, and said deslagging device 10 is located at the end of traveling-grate stoker device 1 transporting direction; Affiliated burner hearth 11 is located at traveling-grate stoker device 1 top, and an end of burner hearth 11 horizontal directions is provided with face arch 4, and face arch 4 joins outside burner hearth 11 with coal bunker 3, and coal bunker 3 is located at the initiating terminal of traveling-grate stoker device 1 transporting direction; Be provided with the hanging arch 5 that joins with face arch 4 in the said burner hearth 11; Hanging arch 5 is vertically installed in the junction of face arch 4 and pot body 7, and hanging arch 5 is to apart 1.5 meters of burner hearth 11 imports, one side and burner hearth 11 import levels, promptly shown in the W2; Hanging arch 5 bottom surfaces are vertical at a distance of 0.5 meter with traveling-grate stoker device 1; Be shown in the H1, form preignition zone, be provided with igniter 2 in the preignition zone thereby make between hanging arch 5 and burner hearth 11 imports; The other end of said burner hearth 11 is provided with rear arch 9; Its length is 2.7 meters, rear arch 9 to burner hearth 11 imports, one side and burner hearth 11 import levels at a distance of 2.7 meters, promptly shown in the W2; Rear arch 9 bottom surfaces are vertical at a distance of 0.5 meter with traveling-grate stoker device 1; Be shown in the H2, thereby make rear arch 9 and 5 of hanging arch form the combustion zone, and also be provided with guide plate 8 above the end of rear arch 9 away from face arch 4; Said burner hearth 11 tops are provided with pot body 7, and the shell of pot body 7 is provided with exterior wall 6, and exterior wall 6 tightly surrounds the pot body, and joins with face arch 4, and exterior wall 6, pot body 7 and face arch 4 threes surround an airtight space.
During work, put coal charge in the coal bunker 3 into, make coal charge get into preignition zone; After coal charge got into preignition zone, 2 pairs of coal charges of igniter were lighted a fire, and with this coal charge are carried out primary combustion; The waste gas that this moment, incomplete combustion produced is intercepted by hanging arch 5, rests between hanging arch 5 and the face arch 4, lights waste gas then; Improve the utilization rate of coal charge, and promote the preignition zone temperature rapidly; Coal charge is after preignition zone fully burns waste gas, and traveling-grate stoker device 1 is transported to the combustion zone to coal charge, and coal charge fully burns in the combustion zone, with this pot body 7 is heated; After treating that coal charge fully burns, traveling-grate stoker device 1 is transported to rear arch 9 places to coal charge, and rear arch 9 fully mixes the flue gas that burning produces, and further improves the utilization rate of coal charge; In said process, 8 dusts that produced burning of guide plate are concentrated, so that work cleaning later; At last, deslagging device 10 is collected the coal charge of burning, and entire work process finishes.
Test result such as following table to the efficiency test report of the utility model:
This shows; The chain furnace overall thermal efficiency of the utility model reaches TSG G002 " boiler energy-saving technical supervision rule of management " to the boiler thermal output desired value under the corresponding fuel of the type boiler; And have only 65%-70% to compare than the thermal efficiency of prior art; The thermal efficiency of boiler has brought up to 85.03%, and the thermal efficiency provides greatly.
The improved protection domain that also is regarded as patent on the basis of above embodiment.

Claims (8)

1. an efficient chain furnace comprises coal bunker, face arch, rear arch, pot body, burner hearth, igniter and traveling-grate stoker device; Said burner hearth is located at a pot body below, and the traveling-grate stoker device is located at the burner hearth below; Said coal bunker is located at traveling-grate stoker device top; Igniter is located in the burner hearth, and face arch is located at burner hearth import department, it is characterized in that: be provided with hanging arch in the said burner hearth, hanging arch and face arch join, and hanging arch and face arch joint are closed, form preignition zone between hanging arch and burner hearth import, form the combustion zone between hanging arch and rear arch.
2. chain furnace according to claim 1 is characterized in that: said hanging arch to burner hearth import one side and burner hearth import level at a distance of 1.4-1.6 rice.
3. chain furnace according to claim 1 is characterized in that: said hanging arch bottom surface is vertical with the traveling-grate stoker device at a distance of 0.4-0.6 rice.
4. according to each described chain furnace of claim 1-3, it is characterized in that: said face arch is inclined-plane or cambered surface, and said hanging arch is vertically installed in the junction of face arch and pot body.
5. chain furnace according to claim 1 is characterized in that: said rear arch length is 2.2-3.2 rice, rear arch to burner hearth import one side and burner hearth import level at a distance of 2.2-3.2 rice, the vertical 0.4-0.6 rice apart in back intrados with the traveling-grate stoker device.
6. chain furnace according to claim 1 is characterized in that: said traveling-grate stoker device is provided with shell outward, and shell is provided with deslagging device; Said deslagging device is located at the end of traveling-grate stoker device transporting direction.
7. chain furnace according to claim 1 is characterized in that: the shell of said pot body is provided with exterior wall, and exterior wall and face arch join.
8. chain furnace according to claim 1 is characterized in that: be provided with guide plate in the said burner hearth, guide plate is located at the rear arch top.
CN2011205367860U 2011-12-20 2011-12-20 Efficient chain furnace Expired - Fee Related CN202371701U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205367860U CN202371701U (en) 2011-12-20 2011-12-20 Efficient chain furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205367860U CN202371701U (en) 2011-12-20 2011-12-20 Efficient chain furnace

Publications (1)

Publication Number Publication Date
CN202371701U true CN202371701U (en) 2012-08-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205367860U Expired - Fee Related CN202371701U (en) 2011-12-20 2011-12-20 Efficient chain furnace

Country Status (1)

Country Link
CN (1) CN202371701U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104421928A (en) * 2013-08-19 2015-03-18 丹东玉龙镁业有限公司 Reciprocating grate-fired furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104421928A (en) * 2013-08-19 2015-03-18 丹东玉龙镁业有限公司 Reciprocating grate-fired furnace

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

Granted publication date: 20120808

Termination date: 20151220