CN1274070A - Room-type multifunctional furnace - Google Patents

Abstract

A drawer-type furnace for firing ceramics, especially large ceramic artworks, contains 6-12 nozzles, each having gas mixer, small combustion chamber and fire bulkhead with hole. Said fire bulkhead is composed of two overlapped plates which can relatively move to regulate the hole size, and can be turned transversely and longitudinally by its transverse and longitudinal axles. The holes are made in the center of its bottom and along the periphery of its bottom to form an exhaust port. Its advantages include quickly raising temp, uniform furnace temp, high air inlet and outlet volumes and simple operation.

Description

Room-type multifunctional furnace

What the present invention relates to is the used drawer type kiln of cell-type kiln, particularly fired ceramic.

The kiln of batch production is generally circular kiln.In the last few years live bottom type kilns of using more, it is drawer type kiln (also claiming rib formula kiln), the pushing in the stove of ceramic base car load formula that need can be fired fired, and this is avoided pushing away yard base substrate waste heat baking in stove hard to bear, and places the not high and generation fragmentation of improper space availability ratio.Yet existing this kiln can only use as up-draft kiln and down-draft kiln by the gas traffic direction.Because the kiln inner volume is limited, fuel combustion is often incomplete, easily produces air pollution during emptying; And when burning, thereby flame directly gushes out and flame and pottery to be burnt can't be separated the uneven influence of being heated and fire the result, can not guarantee the quality of burned product.The most key is various potteries (particularly art ceramics), needs the different conditions of firing and fires mode: a stove can not satisfy when firing the requirement to combustion system different (flaming, muffle, downdraf).

At the above prior art defective, the present invention improves its structure, produces multi-functional cell-type kiln.

Kiln of the present invention (seeing accompanying drawing 1, Fig. 2) is to be equipped with 6 on the wall relevant position within it---12 burner noz(zle)s [1], divide two rows, two nozzles of every row, complete in order to make flame combustion, a small combustion chamber [2] is arranged before each nozzle, can make unburned completely gas fully burn at this.Contact ceramic body to be burnt causes the uneven influence of being heated finally to fire the result for fear of jetting out flames directly, flame-isolating board [3] with a plurality of open-works is all arranged between small combustion chamber and kiln thorax, the flame warp evenly passes to heat body of heater and fires base substrate from open-work, thereby guarantees the quality of firing of product.Flame-isolating board is preferably put together by two plate stacks that have same open-work, and make 1 block of plate wherein slideway arranged up and down, can make left and right sides transversion malposition and move, can make on the flame-isolating board eyelet changeable so in use, to adjust flame point in the sintering procedure big or small thereby be implemented in.In addition, in order in stove, freely to adjust the direction of wind fire, make plate washer do turning to of certain angle when needing, adopt following measure: two blocks of stacked open-work plates are contained on the frame (inside casing), frame axle vertically arranged up and down, this frame is contained in again on the bigger frame (housing), corresponding inside casing vertically has axle sleeve up and down to this housing in the inboard, it is long normally to go up the cover space, the weak point of trapping, the axle Upper shaft sleeve of packing on the inside casing is up carried, treated that lower shaft puts down in the time of can entering Lower shaft sleeve inside casing is packed in the housing; Moreover, laterally also there is axle in the housing outside in two ends, the left and right sides, and housing is contained in the axle sleeve on the furnace wall; Like this inside casing longitudinal axis and housing lateral shaft just can make flame-isolating board do about, left and right sides angle adjustment and can satisfy the various requirement of firing (seeing accompanying drawing 3).Another characteristics of the present invention are that a plurality of (5-7) exhaust outlet [4] is arranged in the bottom of kiln car, to satisfy downdraf exhaust (seeing accompanying drawing 5), its arrangement is that the central row gas port is placed in the middle, and other exhaust outlets divide around the row, but finally each exhaust pipe all is connected pipeline of central row gas port Guan Shangcheng and discharges out of the furnace.The visible accompanying drawing 1,2,5 of its arranging situation and connected mode.Better in order to guarantee jet combustion, a hollow cylindrical burning blender (seeing accompanying drawing 4) can also be installed on nozzle, an even distribution 2-6 hole on the banded face of side circumference, the combustion mixture body can not directly spray and ejection from the periphery mouth from the front during use.Blender can link with spiral shell and connect or bolted.

It is respectively to pacify two rows totally 4 nozzles, 4 burning blenders, 4 small combustion chambers, 4 flame-isolating boards in stove on the relative furnace wall, both sides that the present invention selects optimum drawer type kiln through experiment; Two through hole plates in the flame-isolating board can about stagger, but flame-isolating board vertical and horizontal rotations; Four exhaust outlet pipelines of diagonal periphery are connected on the pipeline of central row air port, make flame form circulating system as Fig. 1 in stove.

This three-in-one formula kiln of the present invention has overcome the defective of existing similar kiln.The design of kiln internal structure and exhaust outlet can be regulated arbitrarily, can realize in a kiln that as required flaming, downdraf, muffle fire; Air discharge structure can make temperature equilibrium more in the stove; Programming rate is fast, can reach 1350 ℃ at 100min; Maximum turnover tolerance is three times of common kiln, best embodies out its superiority when firing big part works.Because mixing and burning fully of gas do not have the waste gas of uncombusted in the exhaust, environment is not polluted in addition.

Accompanying drawing 1 is the positive cross-sectional schematic of kiln, and accompanying drawing 2 is for having flame-isolating board and generalized section thereof in the kiln; Wherein 1. [1] burner noz(zle) is combustion gas, 2. is wind; [2] be small combustion chamber; [3] be flame-isolating board; [4] be exhaust outlet; Accompanying drawing 3 is flame-isolating board front and side structure schematic diagram, and front elevation can be found out the two plates state that staggers, and side view a plate has slideway up and down; Accompanying drawing 4 is burning mixer structure schematic diagrames; Accompanying drawing 5 is a kiln car bottom vertical view, center and peripheral exhaust port is shown distributes, and from then on figure and accompanying drawing 1,2 all can be found out its connection, move towards signal; Accompanying drawing 6 is kiln pictorial diagram.

Claims (5)

1. cell-type kiln that has the drawer type kiln car is characterized by that corresponding positions is equipped with 6-12 burner noz(zle) [1] on the stove inwall; A small combustion chamber [2] is all arranged before each nozzle; There is flame-isolating board [3] to separate between small combustion chamber and burner hearth, a plurality of open-works are arranged on the flame-isolating board; In the kiln car bottom 5-7 the exhaust outlet of falling the cigarette [4] arranged, the exhaust pipe bottom all is connected with the center exhaust pipe all around.

2. kiln as claimed in claim 1, it is characterized by has hollow cylindrical burning blender on the described burner noz(zle), an even distribution 2-6 hole on the banded face of its side circumference, blender connects with spiral shell button or bolt and is fastening.

3. kiln as claimed in claim 1, it is characterized by described flame-isolating board is that two stacked deckle boards that have same open-work plate are housed, wherein a upper and lower all has slideway can make its energy move left and right.

4. kiln as claimed in claim 3 is characterized by described flame-isolating board, be that two blocks of stacked open-work plates are contained on the inside casing that axle vertically arranged up and down, and inside casing is contained on the housing, and the inboard corresponding inside casing of housing vertically has axle sleeve, and the inside casing longitudinal axis is packed in the housing axle sleeve; And outer middle side part has axle about laterally; The housing that has open-work plate, inside casing is contained on the furnace wall that has horizontal axle sleeve.

5. as the described kiln of claim 1-4, but it is characterized in that respectively having on the two offside furnace walls in the kiln two rows totally 4 nozzles, 4 burning blenders, 4 small combustion chambers, 4 blocks of two blocks of stack open-work plates that have a move left and right wherein and flame-isolating board that can vertical or horizontal rotation, diagonal two ends, kiln car bottom and center be totally 5 exhaust outlets, and exhaust pipe all is connected on the pipeline of central row gas port around four.

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