CN2825635Y - High-temperature cement clinker rapid-cooling device having self-adapting control valve with double valve plate - Google Patents

Abstract

The utility model relates to discloses high-temperature cement clinker rapid cooling device having a self-adapting control valve with double valve plates, aiming at the problems of the existing clinker cooling device of a cement grate that as the cooling wind quantity can not be controlled easily, the product quality can be affected, the volume is ingens and the material consumption is large. The utility model comprises a clinker bed (1) and a wind chamber (2) positioned at the lower part of the clinker bed (1), wherein the clinker bed (1) is formed by that a plurality of labyrinth type material leakage preventing trays (3) are spliced. The utility model is characterized in that the lower part of each labyrinth type material leakage preventing tray (3) and the inner part of the wind chamber (2) are provided with wind guide ducts (4) connected with air inlets of the labyrinth type material leakage preventing trays (3); the inner part of the wind guide duct is provided with two vale plate (5), each valve plate (5) is provided with a tongue plate (6) used for regulating wind quantity, and a ventilation gap (7) is arranged between the two valve plates (5). The utility model has the characteristics of simple structure, convenient installation, low height and high material consumption. The cooling wind quantity can be automatically in fuzzy control according to the quantity of clinker.

Description

The cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet

Technical field

The utility model relates to a kind of grog refrigerating unit of cement furnace, the grog quickly cooling device that especially a kind of cement produced with the dry method stove uses, specifically a kind of cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet.

Background technology

As everyone knows, in manufacture of cement, the speed of cooling of high temperature chamotte is one of key measure that influences the cement quality.In order to realize the quick cooling of high temperature chamotte, existing high temperature chamotte refrigerating unit all adopts the comb bed structure, the on the one hand mobile promotion grog reach by the bed of combing is forced blowing by the air port on the bed of combing to grog is inner in the bottom of the bed of combing simultaneously, realizes cooling fast.There is following problem in this comb bed, the one, air output is uncontrollable, supply air system with stable air quantity to grate bed air supply, therefore occur clinker quantity when big cooling slow, final product quality is poor, grog after a little while, cooling is fast, waste energy,, be unfavorable for the stable of quality product so that the cement quality that same stove is produced differs bigger; The 2nd, big material grog takes place in the blowing process to move up, the downward sedimentation of little material grog causes follow-up inhomogeneous cooling evenness to increase; The 3rd, because every bed board must be tilting in the comb bed structure, using little in the bed board moving process expects to leak to supply air system under grog is between bed board, therefore must set up aggregate bin and dispose a series of devices such as corresponding air valve, machine for zipper in the bottom of the bed of combing, the height that causes whole refrigerating unit is between 7.7～8.5 meters, not only bulky, system complex, manufacturing, installation and maintenance inconvenience, and expend a large amount of steel.

Summary of the invention

Thereby the purpose of this utility model is wayward product quality and the big problem of bulky consumable quantity of influencing of cooling air quantity that exists at existing cement furnace grog refrigerating unit, design a kind of simple in structure, easy for installation, highly low, consumptive material is few, especially cooling air quantity can according to how many automatic cement high temperature clinker quick device for cooling of the self adaptive control valve that has double valve sheet of fuzzy controls of grog.

The technical solution of the utility model is:

A kind of cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet, comprise grog bed 1 and the air compartment 2 that is positioned at grog bed 1 bottom, described grog bed 1 is spliced by some labyrinth type material leak-proof pallets 3, it is characterized in that the guide duct 4 that links to each other with the blast inlet of labyrinth type material leak-proof pallet 3 being installed in the bottom of the every labyrinth type material leak-proof pallet 3 that is arranged in air compartment 2, in described guide duct 4, be movably installed with two valve plates 5, the hyoplastron 6 of regulating air quantity is installed on each valve plate 5, between two valve plates 5, is provided with a ventilation gap 7.Labyrinth type material leak-proof pallet 3 and guide duct 4 and two valve plates 5 that are installed in the guide duct 4 have constituted a cooling unit of the present utility model.

On described valve plate 5, be provided with balancing weight or be processed with the counterweight hole.

Described valve plate 5 is a slab construction, and its upper end is connected with open tube 8, and activity is coated with central shaft 9 in the open tube 8, and two ends of central shaft 9 are fixedly mounted on the wall of guide duct 3.

Described labyrinth type material leak-proof pallet 3 can be the square structure of 300mm * 300mm, and its labyrinth clearance is 3～20mm.

The size of the ventilation gap 7 between two valve plates 5 is 5～20mm.

The utlity model has following advantage:

1, the utility model can be regulated the valve plate of aperture automatically by increasing according to action and reaction power in the guide duct of each labyrinth type material leak-proof pallet bottom, realized the automatic fuzzy control of air quantity, the open degree in air port when it can be adjusted automatically according to the amount of grog on the grog bed, can make cooling air quantity be controlled in the optimum range all the time, can be and cause air-flow to be run away along the least resistance zone because of the thickness difference of grog layer on the grog bed and grog particulate thickness difference, even short circuit, cause the big zone of resistance to can not get the refrigerative phenomenon and produce, guaranteed the stable of cement quality.

2, valve board structure of the present utility model is simple, in light weight, easily manufactured, can adopt burn-on the then method manufacturing of steel pipe of the direct cutting of steel plate to form, in guide duct, install reliable, can not come off, and can adapt to the needs of different cooling section air outputs by the surface-area that changes hyoplastron because of the variation of air quantity.Also have easy to adjustly simultaneously, can adjust air output by the method that on valve plate, increases balancing weight or processing counterweight hole.

3, grog mobile more convenient on the grog bed, can realize the translation of grog by adopting common propulsive mechanism, plate armature material bed does not have grog and drops in the plenum chamber, therefore can save a series of supplementary units such as material-gathering device in the traditional structure and machine for zipper, thereby the height that can make refrigerating unit drops to about 4 meters from original 7.5～8.5 meters, can save a large amount of steel.Complete machine weight has only about 50%～60% of traditional comb bed formula refrigerating unit.

4, save traditional pattern of passing through the electrical control air output, need not electrical control and can realize the air quantity adjusting, made the reliability of whole device increase greatly.

5, energy-saving effect is obvious.The energy consumption of traditional comb bed formula refrigerating unit grog per ton is generally 7～8kWh/t, and after tested, that adopts grog per ton behind the volume adjusting apparatus of the present utility model can expect only to be 4～5kWh/t, according to 3.8 hundred million tons of production capacity conversions of national new type nonaqueous cement grog in 2005, can save energy 10.266 hundred million kWh the whole year.

6, applied range can be used in all kinds of high, medium and low voltage supply air systems.

Description of drawings

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

Fig. 2 is the structural representation of each cooling unit of the present utility model.

Fig. 3 is the structural representation of valve plate of the present utility model.

Fig. 4 is the left view of Fig. 3.

The structural representation of Fig. 5 labyrinth type material leak-proof of the present utility model pallet.

Embodiment

Following structure drawings and Examples are further described the utility model.

Shown in Fig. 1～5.

A kind of cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet comprises grog bed 1 and the air compartment 2 that is positioned at grog bed 1 bottom, as shown in Figure 1.Described grog bed 1 is spliced by some labyrinth type material leak-proof pallets 3, the guide duct 4 that links to each other with the blast inlet of labyrinth type material leak-proof pallet 3 is installed in the bottom of the every labyrinth type material leak-proof pallet 3 that is arranged in air compartment 2, be movably installed with two valve plates 5 near the central position in described guide duct 4, as shown in Figure 2.The hyoplastron 6 of regulating air quantity is installed on each valve plate 5, on the valve plate 5 of hyoplastron 6 bottoms, can be provided with and be used to control the balancing weight of valve plate open degree and sensitivity or be processed with counterweight hole 10, shown in Fig. 3,4, be provided with a ventilation gap 7 between two valve plates 5, the big I in gap 7 is chosen between 5～20mm.Labyrinth type material leak-proof pallet 3 and guide duct 4 and two valve plates 5 that are installed in the guide duct 4 have constituted a cooling unit of the present utility model.

During concrete the manufacturing, valve plate 5 can adopt the steel plate cutting to form, and connects an open tube 8 in the top, and activity installs a central shaft 9 in the open tube 8, and two ends of central shaft 9 are fixedly mounted on the wall of guide duct 3, shown in Fig. 3,4.

During concrete enforcement, the square structure of labyrinth type material leak-proof pallet 3 or employing 300mm * 300mm, its labyrinth clearance is 3～20mm, as shown in Figure 5.

Because every row's labyrinth type material leak-proof pallet 3 is different from the distance of grog discharge port in the refrigerating unit, and require in different distance ranges, to have different wind supply quantities, therefore, the table of the hyoplastron on the valve plate 5 of two parallel installations and long-pending because of design adjustment according to institute's required airflow, to obtain best air output, during concrete enforcement, the surface-area S of different positions place hyoplastron 6 can adopt following formula to determine:

$A=f\left(Q\right)=Q\sqrt{\mathrm{\ξ}\frac{\mathrm{\ρ}}{2\mathrm{\ΔP}}}$

In the formula: Q-cooling air volumetric flow rate;

ξ-loss factor, value routinely.

ρ-density of air, desirable normal value

Δ P-hyoplastron two limit pressure reduction, relevant with the weight of valve plate.

Above-mentioned parameter all can be calculated definite with reference to associated fluid mechanics textbook and cement industry parameter in the specific implementation.

The utility model does not relate to part, is realized as prior aries that maybe can adopt all same as the prior art such as the propulsion system of grog, air feed systems.

This reality has novel principle of work to be:

When the thickness of the high temperature chamotte of being stacked on the grog bed of being made up of material labyrinth type material leak-proof pallet of the present utility model fluctuateed between 700-0mm, grog also was fluctuation status to the resistance of the cooling air that blows from the bottom.When material degree of depositing increases when big, grog also increases the resistance of wind, reactive force increases, reactive force also increases simultaneously, under this reaction force acts, valve plate is produced thrust, two angles between the valve plate are reduced, ventilation increases, if the grog on the pallet reduces, then resistance reduces, and the reactive force of valve plate is also reduced, this moment from the air pressure that enters between two valve plates to the reactive force of valve plate greater than this reactive force, valve plate is open, and the angle between two valve plates increases, and every valve plate is that the center produces a kind of gravity torque with the pin joint, when gravity torque add the value of reactive force resultant moment and the gas that between two valve plates, enters to the reactive force moment of valve plate among the time, valve plate is in equilibrium state, and just in time satisfies the cooling requirement of grog from the air quantity that blast inlet enters, thereby makes the exchange of gas-solid two-phase be in steady state all the time, not only energy-conservation, and can guarantee to satisfy the requirement of quality product.

By two movable valve plates of installing simple in structure in upper end are installed in the guide duct of the bottom of every labyrinth type material leak-proof pallet 3; the key that the hyoplastron that can regulate air quantity and open degree is the utility model protection is installed on valve plate, and the quantity regulating device for air of all any this principle design of employing all is considered to belong in the protection domain of the present utility model.

Claims (5)

1, a kind of cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet, comprise grog bed (1) and be positioned at the air compartment (2) of grog bed (1) bottom, described grog bed (1) is spliced by some labyrinth type material leak-proof pallets (3), it is characterized in that the guide duct (4) that links to each other with the blast inlet of labyrinth type material leak-proof pallet (3) being installed in the bottom of the every labyrinth type material leak-proof pallet (3) that is arranged in air compartment (2), in described guide duct (4), be movably installed with two valve plates (5), the hyoplastron (6) of regulating air quantity is installed on each valve plate (5), between two valve plates (5), is provided with a ventilation gap (7).

2, the cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet according to claim 1 is characterized in that being provided with balancing weight or being processed with the counterweight hole on described valve plate (5).

3, the cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet according to claim 1, it is characterized in that described valve plate (5) is slab construction, its upper end is connected with open tube (8), activity is coated with central shaft (9) in the open tube (8), and two ends of central shaft (9) are fixedly mounted on the wall of guide duct (3).

4, the cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet according to claim 1 is characterized in that described labyrinth type material leak-proof pallet (3) is the square structure of 300mm * 300mm, and its labyrinth clearance is 3～20mm.

5, the cement high temperature clinker quick device for cooling that has the self adaptive control valve of double valve sheet according to claim 1 is characterized in that the size of the ventilation gap (7) between two valve plates (5) is 5～20mm.

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