SU1237885A1 - Slot-type furnace - Google Patents

Description

The invention relates to the building materials industry and can be used in slot kilns for high-speed firing of ceramic products.

The purpose of the invention is to improve the reliability of the furnace by increasing the turnaround time and the construction of the design.

FIG. oven shown, longitudinal section; in fig. 2 - the same, cross section; in fig. 3 shows section A-A in FIG. 2; in fig. 4 - drive shaft fastening assembly; in fig. 5 is a section BB in FIG. four; in fig. 6 - reptile pallet, side view and plan; in fig. 7 - the lift and lowering gear in the attachment to the loading, unloading and return branches, general view; in fig. 8 - lift, loading area and return branch, front view; in fig. 9 - node I in FIG. 8.

The furnace represents a lined w, spruce channel, inside which is unrepeatable, ak) nzde; and, located on the lattice 1.0 ddiah 2. At the entrance and exit of the furnace) there are loading and unloading and loading areas 3. Moving the pallets to the return branch 5 and back is performed by the down switch 6 and the lift 7.

EI qbvTepoBKy 8 along the perimeter of the slotted Kai: a.ia “side-mounted, arch and flat surface burners of the burner are built in a staggered order 9. In the furnace channel, along the side of the furnace, are pairwise on both sides with each other; With the P {th interval, each other of the friend has a built-in pip And 10, in which are installed the Bo: uM ie wheels 11, the trans1orting pod1; pI1K d; the 1st wheel I, rigidly fixed- ijise fia 12, is rotated in the sleeve 13 from d) P1p, its chain fivod with the help of c; 4 i: ioHKH 14. The fastening of the wheel shaft is made by the sun; l, nts on o6in, eft of the metalic longitudinal shaft 15, and it has thermal seams, POHO)

17. For

2 free (.) Padeva- | -s thermal insulation - r. Vf}) Ta 18, the nominal end of the n) ;; go into the grooves of the lining mounted on one cross-pair of transglottier wheels, set temperatures, made by full-time steel or refractory period of all transporting them in the channel of the furnace, it is realized; p) of the hppeck drive with Monjbio of two separate infinite chains, vb, on o6iueM nal and located with;) a; jHi) ix of the furnace sides.

The flexible side wall of the lower part serves as a tightly 11iig 11a: m to k ft) fireproof block 19, which can be removed, for this, the lower 1 hour of the block is skimmed, and on the outside it is mounted with a handle 20. between the lining and the block

plates 16 and four megshe and heat losses

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covered with mortar. Instead of the refractory block, you can also use collapsible masonry.

The fixed mounting of the shaft 12 and g, the hollow of the poor 10 allows the replacement of defective transport wheels or their shafts without a long stop and the cooling of the furnace. To do this, it is necessary to remove the drive chain from the gear 14, top down to the refractory block 19, open the bolts 17 and remove the shaft 12 with the wheel 11 from the nipple 10.

The pallet is made of heat-resistant: oh steel and is a reel, consisting of rectangular cross section, welded at a defined interval to two directions of a 1.5 m channel. At the same time, the slatted pallet, is supported on three pairs of transportable wheels, i.e., has a length equal to three intercobalance wheels; for a given length, the distance between the shelves of the guide pshellsra is chosen so as to eliminate distortions in the movement of the pallet on the transporting wheels, the width of which is also known.

In the lower part of the furnace and the sections of the zag) are narrow and the discharge is laid. The return branch 5, which is driven from a separate chain drive by means of liiecrepene 21. The end sections of the return cc-mc are made in a narrowed variant e. .ii help from a common infinite value of i-nsteetoenok 22, for this purpose, on iiajiv 23 crocs 21, there is an additional side mounted on the packs 22.

Pad return branch:, naph; kilns are located areas 3ai i) v:, KH of load 4. For this, on the memory: .M vci t supports 25 supporting -njaiif the drive of loading sections and;) is built from I1kii, -1,} n,; ::, | ;;, 1x 1 drive through the gears of the middle part of the uchyach:) in and; local posts, where the pallet is locked in a fixed position. Neither 11,)) D ;; s HiecTc peiiKH 27 reviews: o).

Lift 7 and omit ;;;, in the njapiiHpnoi o: ar; 1lls: LO | - :, mechanism. On the bed 2nd ;; pa;. ;;:; kala 29 with levers 0 - are united .1 by themselves tami 32. Rotation proi; drive shaft; without shaft 33, (and toothed gears 35. .L., rotary drives at the ends of x;); resgr and return branch 5 has been set:; -; chat.pi 36. The lowering switch has .iumeric switch 37, psciio. io-Kernn; y i; the gateway branch under the section a) ii i; v3Ki switch off the electrino. august e. Ann are set to switch off 38, and i-fa pz: fixed HJTOKH 39- On nn: 1 ( Hvcii has two stocks.

The pallet is raised from two sides by shelves 40 having transverse grooves on the contact surface. The beam 41, rigidly fixed to the crossbar 31 and having a cross-sectional view of a right-angled triangle and a length somewhat less than the distance between the two levers 30, is the middle link between the crossbar 31 and the shelf 40.

Under the actuator 6, the beam 41 and the shelf 40 are rigidly connected to each other.

At elevator 7, shelf 40 is pivotally connected to bar 41 and can assume a vertical position, resting against elastic guide cheeks 42 mounted at the level of the return branch. For this on the floor

ke 40 has a slot for bar 41 and two

Scarves 43, and in the lower end parts of the bar 41 - threaded holes. In this way, the shelf 40 by the arms 43 is hinged to the bar 41 by bolts 44. Push-in on the bolt 44, the spacer spring 45 returns the shelf to a horizontal position.

Slit furnace operates in automatic mode as follows.

On the lattice tray 2, locked at the non-driving post of the loading area 3,

raw materials are stacked in one row, and the pallet 25 does not prevent the pallets from passing through

pushes onto the drive part, moving along which, enters the furnace 1. The cyclic loading and movement speed of the pallet at the loading section are set so that the newly loaded pallet closely adjoins the train of pallets moving in the furnace at its entrance.

The furnace is heated uniformly on all sides of flat-flame burners 9 located along the perimeter of the slotted channel, so that the products transported on the grid trays are subjected to quadrilateral symmetric heating, which greatly contributes to the intensification of the burning process.

The length of stay and the speed of movement of the pallets in the furnace depend on the preset firing mode and the length of the slit furnace and can be adjusted by varying the rotational speed of the transport wheels 11.

The pallet coming out of the furnace is detached from the rest due to the greater speed of movement in the discharge section 4, moving along which it hits the non-driving post and stops. The unloaded pallet is unloaded from the fixed pallet and the empty pallet is collided onto the drive end.

At the end of the unloading section of the sub-house vnt; - it goes to the support and the lever of the 36 actuator of the downer 6. When turning;): - Chagov 30 of the shelf 40 on both sides lifted the drip pan and transferred it to the return door (5. When climbing on inclined surfaces 41 bars under the action of self-weight is made central installation of poddo

l 38.

on, and with it the direction of their channels for the collection branch of the return branch. In the lowermost position of the crossbar 31, the first rod 39 fixed on the shaft 29 turns off the lowering actuator through the switch 38, the switch 36 is locked. The pallet transferred to the return branch leaves the radius of the crossbar 31, re-activates the lowering actuator, runs over the lever of the switch 37, at the same time, the lock is removed from the switch 36. The crossbar 31 returns to its original position at the level of the unloading section, at which the second valve 39 turns off the down actuator by turning off ath

At the end of the return branch, the pallet rests against the stop and the lever of the electric actuator switch 36 of the lift 7. The pallet is picked up by the shelves 40, centered on the inclined parts of the bars 41 and transferred parallel to itself to the load section 3. When the crossbar 31 returns to its original position at the level of the return branch along , 40, resting against the guide cheeks 42, assume a vertical position and thus

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along the return branch, which are in the radius of rotation of the crossbar, which can be eliminated altogether in the spent mode by selecting the speed of the return branch drive. When the crossbars 31 of the initial 0 position are reached from the rod 39 rotating with shaft 29, the switch 38 is activated and turns off the drive of the elevator 7.

The reed tray, transferred to section 3, is moved to a non-driving post, where it is stopped, loaded with raw materials and re-directed to the furnace, etc.

The use of the proposed slit furnace provides the following advantages compared to existing 1P1 and prototype: the possibility of accelerated ceramic products due to four-sided uniform heating G: heat and reducing the contact surface between the product; 1i and the grid pan, which contributes to technological fuel economy; the low thermal inertia of the furnace and the small ogperipas make it possible to quickly create the required temperature in the furnace and realize a phase separation; at where the heating rates for different phases; | x roasting are determined by CBOHCTiinMii; Kno.ib ;; yeNioro raw materials, as a result of which nopbiUiiicTOi the quality of finished products and lower /; aogs marriage; the main elements of the tra; sports organs | organs - the drive co. ica Hv.eio i is a long service life, easier and cheaper to manufacture and more reliable ripi cpsp p la tion. In addition, the replacement of the non-used tires of the wheels of uiix wheels is made without :; about; i) false; solid stoppage and cooling of the furnace; times: o; 1ois drive wheels in iniax.

embedded in the floor of the oven channel, increases

empty pallet return system

the useful volume of the furnace and allows the insulator to allow, when working together with the automat, the attachment points for the drive wheel shafts

from direct fire; easy to automate work.

empty pallet return system

allows, when working with automatic loading and unloading machines, to exclude manual

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Claims (2)

1. A SLOT FURNACE for firing ceramic products, containing a footed channel, a burner, a mechanism for transporting products with working and return branches, loading and unloading sections, characterized in that, in order to increase the reliability of the furnace by increasing the overhaul period and simplifying the design The product transportation mechanism is made in the form of trellised pallets equipped with drive wheels mounted on heat-insulated shafts located in niches of the side walls of the furnace. mounting of the drive shaft shaft; niche wall made 2. The furnace according to η. 1, characterized in that the wheels and the outside are many. EZ ^ ZZzi / ί ~ ZZZZZZ ^ 27777 / _ J - htch / th?