CN2250472Y - Turning changeable shaped coal steam boiler - Google Patents

Abstract

The utility model discloses a turning changeable briquette steam boiler, which mainly comprises a boiler barrel which is arranged on a base seat. A water pipe fire grate provided with a splicing plate boiler bridge divides a boiler container into an upper boiler hearth and a lower boiler hearth which are respectively provided with an upper fire door and a lower fire door, and an upper smoke uptake hole and a lower smoke uptake hole which are communicated with a smoke box. The base seat and the lower boiler hearth are respectively provided with a primary air inlet pipe and a secondary air inlet pipe. The burning method can be changed according to the variety of the fuel and the habit of the boiler feeding. The utility model is especially suitable for burning briquette, and is suitable for burning bituminous coal or other fuels. The utility model has the advantages of compact structure, wide adaptability, high thermal efficiency, little smoke pollution, obvious energy saving effect, convenient operation, etc.

Description

Burning type variable moulded coal steam boiler

The utility model relates to steam boiler, specifically a kind of burning type variable moulded coal steam boiler.

In general, determine that at first fuel band and combustion system are the prerequisites of carrying out the steam boiler structural design, that is to say, according to fixed fuel band and the designed steam boiler structural shape of combustion system, in case produce the steam boiler of typing, its fuel band and burning working method just immobilize, for example, be the designed steam boiler of common bituminous coal double grate nature air inducing backfire, carry out with regard to only being fit to use common bituminous coal that nature air inducing is counter to burn work, in general can not burning briquette or other fuel, the burning working method more can not conversion.Though can be numerous for the fuel band of steam boiler, the combustion system that the various places operating habit adopts has multiple, but at present in the prior art, boiler of having finalized the design is difficult to satisfy simultaneously and can be fit to the requirement that the pluralities of fuel kind again can the multiple combustion system of conversion, but adopt the boiler design multiple different structure type to adapt to the different fuel kind and satisfy the needs that the various places stoker is accustomed to required combustion system, so just caused the steam boiler structural shape various, this certainly will increase the design work amount of steam boiler.Chinese patent: CN2072642U discloses the utility model that a kind of name is called " the rotary-type coal burning boiler of vertical external combustion ", it is for reducing the flue dust environmental pollution, the developing direction of " coalification of raw coal fuel type " that proposes according to country designs, it is particularly suitable for using in the area of promoting moulded coal, because it only is suitable for briquet, can not dual-purpose bituminous coal or other fuel, and the various places that are operated in of China's all-round popularization moulded coal also have certain gap, therefore the fuel band adaptability of this boiler is relatively poor, is subjected to certain restriction in the use.Chinese patent: CN2072641U discloses the utility model that a kind of name is called " vertical curved water pipe double-grate boiler ", it is mainly by body, base, smoke box body and chimney partly constitute, body is installed on base, on, lower hearth respectively is equipped with, lower furnace door, lower hearth is communicated with the smoke box body by smoke throat port, this boiler adopts that double grate is counter to burn work, though this boiler has thermal efficiency height, intensity of fire is big, pollute little advantage, but it can only adopt anti-burning mode to work, can not conversion other burning working method, because its burning working method is single, and certain limitation is also arranged in the use.

The purpose of this utility model is to propose on the basis of existing technology a kind ofly can be fit to pluralities of fuel kind (for example: moulded coal or common bituminous coal), the steam boiler of convertible multiple combustion system again simultaneously.

The purpose of this utility model is achieved by the following technical solution.

A kind of burning type variable moulded coal steam boiler, it mainly comprises the drum that is connected into by shell and flue that is installed on base, drum is equipped with feed pipe and steam outlet pipe, the smoke exhaust pipe and the smoke box that are connected in the shell both sides are communicated with by horizontal fire tube, the water pipe furnace grate that is connected in the flue is divided into the upper furnace and the lower hearth of ganging up with flue, the last smoke throat port that upper furnace is provided with upper furnace door and communicates with smoke box; Last smoke throat port portal the place with shell be connected with one group of curved ear duct, can make full use of flue gas heat and carry out heat exchange, promote the shuttling movement of water in the drum, casting furnace grate and secondary wind inleting tube are equipped with in the bottom of lower hearth, the following smoke throat port that lower hearth is provided with lower furnace door and communicates with smoke box, base is provided with Hui Men and a blast pipe, shelve the jigsaw grate that is furnished with through hole on it on the water pipe furnace grate, (for example: coal briquette) be particularly suitable for briquet, when taking off the jigsaw grate, be the common bituminous coal of burning or other fuel, in use, on, lower hearth both can be used as two burner hearths and had burnt respectively, also can unite two into one to do as a whole burner hearth use, can be according to various places stoker's operating habit conversion burning working method.

The utility model is by water pipe furnace grate flue to be divided into upper and lower burner hearth, the upper and lower smoke throat port that is separately installed with upper and lower fire door and communicates with smoke box, base and lower hearth are installed first and second blast pipe respectively, can be accustomed to the conversion combustion system according to the stoker, shelve the jigsaw grate that is furnished with through hole on the water pipe furnace grate, be particularly suitable for briquet, also be suitable for other fuel such as common bituminous coal or timber, advantage such as have thermal efficiency height, smoke contamination is little, and energy-saving effect is obvious, easy to operate.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view (when taking out the jigsaw grate) of Fig. 1;

Fig. 4 is the structural representation of jigsaw grate;

Fig. 5 is the C-C cutaway view of Fig. 4.

The utility model will be further described below in conjunction with accompanying drawing:

A kind of burning type variable moulded coal steam boiler, it mainly comprises the drum 9 that is connected into by shell 10 and flue 12 that is installed on base 1, drum 9 is equipped with feed pipe 21 and steam outlet pipe 22, the smoke exhaust pipe 11 and the smoke box 7 that are connected in shell 10 both sides are communicated with by the horizontal fire tube 8 that is installed in the drum 9, the water pipe furnace grate 16 that is connected in the flue 12 is divided into flue 12 upper furnace 13 and the lower hearth 18 of ganging up, the last smoke throat port 5 that upper furnace 13 is equipped with upper furnace door 14 and communicates with smoke box 7, exit and shell 10 at last smoke throat port 5 are connected with one group of curved ear duct 6, can make full use of flue gas heat and carry out heat exchange, promote the shuttling movement of water in the drum 9, lower hearth 18 is equipped with secondary wind inleting tube 3, lower furnace door 17 and the following smoke throat port 4 that communicates with smoke box 7, the bottom of lower hearth 18 is installed with casting furnace grate 2, base 1 is equipped with 19 and blast pipes 20 of ash door, burner hearth of the present utility model is last, following twin furnace combining structure, be the four hole coil structures that go with each other all the time of " two-layer burner hearth; two stoke holes; two smoke throat ports ", upper furnace 13 and lower hearth 18 both can be used as two burner hearths respectively coal burn respectively, also can unite two into one, as a burner hearth integral combustion, an equipped in addition blast pipe 20 and secondary wind inleting tube 3, optional majority kind air supply mode, can be accustomed to its combustion system of conversion according to the stoker of various places in use, for example: adopt the just burning method work of single fire grate: upper furnace 13 and lower hearth 18 unite two into one, make as a whole burner hearth, close the upper furnace door 14 of upper furnace 13, and with following smoke throat port 4 sealing of lower hearth 18, with the lower furnace door 17 of lower hearth 18 as stoke hole, promptly close lower furnace door 17 behind the coal, coal burns on the casting furnace grate 2 of lower hearth 18 bottoms, at this moment water pipe furnace grate 16 is used as simple heat exchanging water pipe, flue gas is through last smoke throat port 5, smoke box 7, horizontal fire tube 8 and smoke exhaust pipe 11 are discharged, this combustion system both can adopt and close air blast, open the ash door 19 natural air inducing of base 1, also can adopt and close ash door 19, by air blast through a blast pipe 20, the air blast mode of secondary wind inleting tube 3 is blown, this single fire grate is just burning method, and common bituminous coal is particularly suitable for burning.For another example: adopt just burning method work of double grate air blast: this combustion system (for example: coal briquette) is particularly suitable for briquet, when adopting this combustion system to work, the jigsaw grate 15 that at first it should be furnished with through hole 23 is sent into by upper furnace door 14 that combination is held on the water pipe furnace grate 16 in the upper furnace 13, at this moment upper furnace 13 and lower hearth 18 add moulded coal as two burner hearths respectively by upper furnace door 14 and lower furnace door 17 respectively, moulded coal burns on jigsaw grate 15 and casting furnace grate 2, during burning work, close upper furnace door 14, lower furnace door 17 and ash door 19, by air blast through a blast pipe 20, secondary wind inleting tube 3 air-supplies, flue gas is respectively by last smoke throat port 5 and following smoke throat port 4, through smoke box 7, horizontal fire tube 8, smoke exhaust pipe 11 is discharged, also can adopt the working method of nature air inducing backfire: promptly close lower furnace door 17, last smoke throat port 5 sealings with upper furnace 13, upper furnace door 14 adding moulded coals by upper furnace 13 burn on jigsaw grate 15, close air blast, open the ash door 19 natural air inducing of upper furnace door 14 and base 1, flue gas is through the following smoke throat port 4 of lower hearth 18, smoke box 7, horizontal fire tube 8 is discharged by smoke exhaust pipe 11.The utility model chamber structure novelty, reasonable in design, it is simple not only can to have adapted to pluralities of fuel kind but also convertible multiple burning working method and map function, be that a kind of adaptability is strong, comparatively desirable steam boiler equipment is particularly suitable for the scenery travelling convalescence area and promote the use of in the area of building a nationally advanced clean city.

Claims (1)

1 one kinds of burning type variable moulded coal steam boilers, it mainly comprises the drum (9) that is connected into by shell (10) and flue (12) that is installed on base (1), drum (9) is equipped with feed pipe (21) and steam outlet pipe (22), the smoke exhaust pipe (11) and the smoke box (7) that are connected in shell (10) both sides are communicated with by horizontal fire tube (8), the water pipe furnace grate (16) that is connected in the flue (12) is divided into the lower hearth (18) that casting furnace grate (2) are equipped with in the upper furnace (13) that is provided with upper furnace door (14) and bottom with flue (12), the following smoke throat port (4) that lower hearth (18) is provided with lower furnace door (17) and communicates with smoke box (7), base (1) is provided with ash door (19) and a blast pipe (20), it is characterized in that upper furnace (13) is provided with the last smoke throat port (5) that communicates with smoke box (7), be connected with one group of curved ear duct (6) in last smoke throat port (5) exit and shell (10), shelve the jigsaw grate (15) that is furnished with through hole (23) on the water pipe furnace grate (16), lower hearth (18) is equipped with secondary wind inleting tube (3).

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