One, design about the structure of throat
Throat is the significant position of vitreous kiln furnace, the vitreous fluid with fused, clear, good leveling enters minute of burden through it path, undertake farther leveling and refrigeration for expecting to want when the path, enter next shape equipment undertakes manufacturing shaping. The channel that carries this one stricture everyday has 360~400t glass liquid, vitreous fluid erodes to it and wearing away is bigger; and the working environment with located throat is poor, all around temperature is high, once have,the problem cannot undertake changing. The electric frit AZS41# with because this throat is chosen,fight aggressivity can better brick or curium brick. Brick of electric frit AZS is in place of face of have a common boundary of three-phase of solid photograph, fluid photograph, gas phase to have up the function of corrode aperture, brick of electric frit AZS is solid photograph, vitreous fluid is fluid photograph, the bleb that remains in vitreous fluid is gas phase, otherer place erodes brick of throat cover board big, 5~6 year eroded 300~400mm ply up, after brick of throat cover board eroded 300~400mm, the extraction of vitreous fluid expects deepness becomes shallow, was equivalent to tank depth of former kiln furnace reducing 300~400mm, the load of kiln furnace suffers an effect for certain, to satisfy load, raise furnace temperature only, so specific power consumption should increase. Of the body of heater such as the furnace lid after a few years burn caustic, body of heater attenuates, internal temperature increases, body of heater comes loose heat increases further.
The structure that throat narrates on put together can affect kiln furnace life, load and specific power consumption. Be aimed at the mechanism that brick of throat cover board corrodes, we design brick of throat cover board and vitreous fluid interface those who tilt, the bleb in vitreous fluid adheres to not easily go up in brick of throat cover board, thereby greatly slow down of brick of throat cover board erode, prolonged the life of throat, prolonged kiln furnace life namely.
2, about pool bottom structure
Structure of bottom of kiln furnace pool affects kiln furnace life easily also, expect high in vain especially or furnace of kiln of brilliant white stuff, because its are diathermic good, pool bottom temperature is higher, and the inevitably meeting in batch takes matter of a few metals, metallic thing is right of electric frit AZS erode relatively fierce (be down corrode aperture) , once brick of electric frit AZS is worn by corrode hind, vitreous fluid permeates motherboard brick below hind, can arise " up corrode aperture " , form stalactite in that way erode, corrode motherboard AZS brick very quickly wear, cause very great harm to safety of whole pool bottom thereby, affect kiln furnace life, serious when can produce accident of makings of the leakage end the pool.
To prevent the happening of this kind of incident, be the metallic content in wanting to control batch strictly enter, 2 it is the setting that strengthens pool bottom to prevent leakage structure. The structure end this second design pool is multilayer and complex structure.
3, fused Chi Changkuan
Once fused rate is affirmatory, so kiln furnace fuses the area decides. Is the design concept that we take: ? Mother of adept of Zhe of Kuang palpitate antrum feed knock ugly protect to call out Zhe of Tao of ⒅ of of of caries of Ji of Chan of Zhe of Zhui palpitate antrum to refined some ざ takes of bail of wall of my cheek of analyse of bail of T expostulate with " of Hui of of head of of ぢ of ú A б beats of wisdom Piao A big pool, 2, glass is formed, 3, vitreous leveling, 4, of glass clear, 5, cooling) of glass, these 5 frit make level is undertake inside different space, same time. Consequently we think the design of furnace of kiln of horse's hoof blaze, below the length that wants to be able to be achieved in blaze only, the choice has older length breadth ratio, let the makes it clear that it is certain to have with leveling area of vitreous fluid. Below the condition that can obtain in blaze namely, the length of kiln furnace wants big.
To reduce blind angle, with the benefit flow at vitreous fluid, we will fuse the design of style of forebay wall brick of the pool is splay.
4, the deepness of fused pool
Current, compare advanced kiln furnace, fused pool is divided for shallow pool and deep pool, for the aggrandizement heat, quality that improves glass and crop, set bank having kiln commonly. The design before we pit kiln is shallow pool, the design after kiln pits is deep pool. Fused area is before kiln pits (call Chu Rong area) again, surface of fluid of the glass inside fused area is enclothing the bubble that thick batch and batch fuse in decomposing a process, be formed, they are hot undesirable conductor, it is a thermal insulation. What affected heat as a result of thermal insulation is penetrable reach deliver, consequently the deepness of shallow pool shoulds not be too deep, if cross late meeting to be formed in pool bottom thick do not move layer or delay to eat a layer, the ply that these do not eat a layer or delay eats a layer can change as pool bottom temperature or load changes and change, in the natural convection that adds vitreous juice thereby, the quality; that affects vitreous fluid then and after the vitreous liquid that these do not eat a layer or delay uses a layer joins the natural convection of vitreous fluid, meet those who make didymous glass juice repeat heat, increase the sources of energy use up.
Careful and fused division makes again to clarify leveling area after kiln pits () of abbreviation deep settling tank, we should deepen the tank depth of this area. Deep settling tank is right raise quality of vitreous kiln furnace, yield, and the effect that reduces specific power consumption is very apparent. 1, it added the dimension of vitreous kiln furnace, lengthened vitreous fluid the retention period inside furnace; 2, "Clear process of glass is to point to the process that eliminates visible bleb, look from formally, this process is simple hydromechanical procedure, actually it is a complex physico-chemical process " , vitreous fluid makes it clear that the viscosity of speed and vitreous fluid is concerned, viscosity (include exterior pulling force) concern with the temperature of vitreous fluid again, if deepness of deep settling tank is too deep, although bleb gets the quiet pressure of vitreous fluid is greater, but the viscosity that causes vitreous fluid because of on the low side of vitreous fluid temperature is big, bleb eduction is difficult instead. According to computer simulation emulation technology makes clear, the temperature of bottom glass fluid of deep settling tank should consider with not be borderline under 1300 ℃ , design of deepness of because this kiln furnace is deep settleclear pool is 1300mm. When design and computation fuse tank depth clarifies the deepness of place, not only the diathermancy that should consider glass, consider the size of kiln furnace even, akin glass, big kiln furnace but proper a few deeper.
5, the structure of pool of feed in raw material
Batch is opposite in the distributinging state of fused pool the effect with the very main move since the fused speed of batch. Mouth of feed in raw material is wider, machine of feed in raw material also should be jumped over wide, below the situation that measures in same feed in raw material, ply is thinner, forms makings city is wider, hot utilization rate is higher, batch is fused faster. Because load of this second kiln furnace is bigger, although unilateral feed in raw material can reduce the leakage loss of radiation heat and high temperature air current, but in considering to move for a long time, batch of etc of machine of feed in raw material carries a system to wear away increase, hard to avoid does not give trouble, makings of normal to safeguard pass in and out has certain difficulty, should use structure of pool of symmetrical and bilateral feed in raw material consequently. Is the concept that we take when designing pool of feed in raw material: ? Does narrow of Gu Bang of of of stand upright of mill of the Yong that mirror ぜ show Xing of of technetium of Ji of honest と Yan does Wei of Zi of Pa of grave of simian Zhuo value closely question from of hydrazine of Γ Wei of Zi of Pa of discharge of of look forward to of of of bifurcation of play of rice huller of creek narrow daughter-in-law from Γ rice huller play?
The appearance of pool of feed in raw material, should decide by the type of machine of feed in raw material, domestic and international practice proves, swing the effect of feed in raw material that wraps machine of type feed in raw material and energy-saving effect are idealer at present, OK and energy-saving 5% the left and right sides. Swing wrap machine of type feed in raw material energy-saving principle is as follows:
(Machine of 1) general feed in raw material is added into the batch inside furnace, it is float in vitreous fluid apparently. Because batch is loose, its coefficient of thermal conductivity is very low, fused rate is slower. Use wrap machine of type feed in raw material, it goes to batch the extruding in vitreous fluid, the process is here medium, the vitreous fluid of high temperature is squeezed to come up, the stoma in fill batch, increased the thermal conductivity of batch, if installation of machine of feed in raw material is adjusted well, batch resembles wrapping dough same, partial parcel is in vitreous fluid, fuse speed is accelerated greatly thereby, fused fast load can increase, consequently energy bad news decreases.
(2) swings wrap function of type feed in raw material quite left, medium, right 3 direction swing feed in raw material, it is OK that 3 directions push makings number aleatoric set is adjusted, make batch pile distributings inside fused pool thereby very even, fused pool area is able to make full use of, it uses the radiant energy of blaze space effectively, raised the utilization rate of fused pool, fuse speed is accelerated further consequently.
(Because 3) is to part to 3 direction feed in raw material, batch is one small crowd inside furnace one small crowd is being surrounded by vitreous fluid, increased the interface with vitreous fluid to accumulate, realized layer feed in raw material.
(4) looks from another angle, swing wrap machine of type feed in raw material to still have the advantage that prolongs kiln furnace life, because swing,wrap machine of type feed in raw material to time drive batch to 3 direction, batch distributings equably in the back end of fused pool, the time that it and pool nogging engage directly is short, do not contact with pool nogging directly even, can prolong the life of pool nogging thereby, because batch is right of pool nogging erode should get greatly than vitreous fluid much.