CN202792963U

CN202792963U - Communicated and circulating shuttle kiln

Info

Publication number: CN202792963U
Application number: CN 201220489583
Authority: CN
Inventors: 李华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-25
Filing date: 2012-09-25
Publication date: 2013-03-13
Anticipated expiration: 2022-09-25

Abstract

The utility model provides a communicated and circulating shuttle kiln. The communicated and circulating shuttle kiln comprises two or more than two shuttle kilns provided with independent firing control. Each shuttle kiln is provided with a shuttle kiln body, a kiln door, burners, an upper discharge flue, a lower discharge flue and a trolley. The lower discharge flues are communicated and provided with control wedge discs. The communicated and circulating shuttle kiln is further provided with a combustion fan, a main smoke exhaust fan, an upper discharge flue, an upper discharge flue wedge disc, a main discharge flue, a flue cold air inlet and a gas ejector. According to the communicated and circulating shuttle kiln, due to the fact sequential and circulating firing of firing processes is achieved and firing waste heat is fully used, energy saving, consumption reducing and emission reducing are achieved, energy is saved by more than 50% than that of a traditional shuttle kiln, 35% than that of a high-speed shuttle kiln and more than 15% than that of a tunnel kiln and a roller kiln, and therefore production cost is reduced. Besides, production is flexible, products of different temperature and different atmosphere can be fired without restriction by all combustion chambers, and an area can be reduced by more than half than that of a shuttle kiln with the same yield.

Description

A kind of communication loop shuttle kiln

Technical field

The utility model relates to the kiln that a kind of pottery burns till, and relates in particular to a kind of communication loop shuttle kiln.

Background technology

Traditional shuttle kiln is owing to small investment, produce flexibly, although than tunnel cave, the high 30-40% of roller kilns energy consumption, is still at present the kiln that pottery, emery wheel, refractory material, electroceramics, heat treatment industry generally adopt; Although the kiln worker has done a lot of improvement to shuttle kiln, energy-saving effect increases, because the special construction of former shuttle kiln can not fundamentally change the high drawback of shuttle kiln energy consumption.The reason that its energy consumption is high mainly is that flue gas heat more than 60% and about 30% cooling sensible heat are not directly utilized, and is most of by directly emptying.

Summary of the invention

For overcoming the existing deficiency of above-mentioned prior art, the utility model provides a kind of flexibility with shuttle kiln to have again even be better than the communication loop shuttle kiln of Energy-saving Tunnel Kiln effect.

The utility model is to realize like this, a kind of communication loop shuttle kiln, comprise and have the shuttle kiln that independently burns till control, by shuttle kiln body, wicket, combustor, smokejack and chassis form up and down, described shuttle kiln has the shuttle kiln that independently burns till control by two or more and forms, and described up and down smokejack is interconnected and is provided with the control flashboard; Also be provided with combustion fan, main smoke discharging blower fan, up and down smokejack, up and down smokejack flashboard, main smoke exhaust pipe, the import of flue cold wind.

As further improvement of the utility model, also be provided with gas injector in the down smoke-discharging road.

Its operation principle is: take four burner hearth communication loop shuttle kilns as example, four burner hearths take on respectively burn till, preheating, oven dry, cooling different role.When program is burnt till in the startup of A burner hearth independent temperature system, the upper smokejack of A burner hearth is closed, the down smoke-discharging road is opened, flue gas enters the B burner hearth from the lower flue of opening, other burner hearth lower flue is blocked, the upper flue of B kiln open and and the discharge duct of pump drainage cigarette blower fan be communicated with and make the B burner hearth produce negative pressure, the lower flue of the high-temperature flue gas of A burner hearth through being communicated with flows into the B burner hearth, after inhaling fire hole and B kiln Realization of Product heat convection, discharge from upper smokejack, the A burner hearth burns till end, cooling system is opened, air pipe line continues the A burner hearth is cooled off, the smokejack flashboard continues to cut out on the cooling initial stage A burner hearth, and the high-temperature flue gas that cooling produces is as the combustion air of B burner hearth, with the combustion gas mixing of B burner hearth down smoke-discharging road gas injector injection, the B burner hearth is produced quick temperature raising, after the B burner hearth reaches uniform temperature, close gas injector, open on the C burner hearth, down smoke-discharging road flashboard.Close smokejack flashboard on the B burner hearth, start B burner hearth master and burn till control program, whether the A burner hearth is looked flue-gas temperature the value of utilization, if any value, unite preheating to the C burner hearth together with the high-temperature flue gas of B burner hearth, when A hearth waste heat during without value, open smokejack flashboard on the A burner hearth, and close simultaneously up and down smokejack flashboard of A burner hearth, and the cold air inlet of opening A burner hearth down smoke-discharging road cools off fast to the A burner hearth; Close D kiln wicket, enter drying procedure, the oven dry initial stage is suitably opened down smoke-discharging road and upper smokejack flashboard, flows into partial fume to the preheating of D burner hearth product, and so circulation realizes continuous burnt.

Realize the utility model, because this communication loop shuttle kiln realization firing process circulates successively and burns till, take full advantage of and burn till waste heat, reach saving energy, lowering energy consumption and reducing pollutants discharge, more energy-conservation more than 50% than traditional shuttle kiln, than quick shuttle kiln energy-conservation 35%, more energy-conservation more than 15% than tunnel cave, roller kilns, thus reduce production costs, and produce flexibly, it is unrestricted that each burner hearth burns till the product of different temperatures, different atmosphere, and it is over half to reduce the place than the shuttle kiln with Isoquant.

Description of drawings

Fig. 1 is the structural principle schematic diagram of the utility model communication loop shuttle kiln;

Fig. 2 is the horizontal cross-sectional schematic of Fig. 1;

Fig. 3 is vertical cross-sectional schematic of Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model is described further:

A kind of communication loop shuttle kiln comprises that four have shuttle kiln A, B, C, the D that independently burns till control, and respectively by shuttle kiln body 1, wicket 2, combustor 3, smokejack 4 and chassis 5 form up and down, described down smoke-discharging road 4 is interconnected and is provided with control flashboard 6; Also be provided with combustion fan 7, smoke exhaust fan 8, up and down smokejack 9, upper smokejack flashboard 10, main smoke exhaust pipe 11, flue cold wind import 12, also be provided with gas injector 13 in the down smoke-discharging road.

Only be a kind of embodiment of the present utility model shown in above-mentioned, should be pointed out that the common variation that those skilled in the art carry out and replace all should be included in the protection domain of the present utility model in the technical solutions of the utility model scope.

Claims

1. communication loop shuttle kiln, comprise and have the shuttle kiln that independently burns till control, by shuttle kiln body, wicket, combustor, smokejack and chassis form up and down, it is characterized in that: described shuttle kiln has the shuttle kiln that independently burns till control by two or more and forms, and described up and down smokejack is interconnected separately and is provided with the control flashboard; Also be provided with combustion fan, main smoke discharging blower fan, up and down smokejack, up and down smokejack flashboard, main smoke exhaust pipe, the import of flue cold wind.

2. communication loop shuttle kiln according to claim 1 is characterized in that: also be provided with gas injector in the down smoke-discharging road.