CN201264812Y

CN201264812Y - High temperature airlock valve

Info

Publication number: CN201264812Y
Application number: CNU2008200758847U
Authority: CN
Inventors: 付君武
Original assignee: TIANJIN FEISITE MECHINE EQUIPMENT CO Ltd
Current assignee: TIANJIN FEISITE MECHINE EQUIPMENT CO Ltd
Priority date: 2008-08-05
Filing date: 2008-08-05
Publication date: 2009-07-01
Anticipated expiration: 2018-08-05

Abstract

The utility model relates to a high temperature air locking valve which mainly comprises a motor drive device, a gridding wheel used for dialing materials, as well as a shell provided with an upper feeding hole and a lower feeding hole; the gridding board of the gridding wheel is provided with an abrasion resistant vane; the motor device drives the gridding wheel to rotate by a rotating shaft which penetrates the end board of the shell and is supported on a bearing. The utility model is characterized in that the gridding wheel is a heat-resistant steel gridding wheel; the shell is a heat-resistant steel shell; an annular shaft seal structure is arranged on the extending position of the rotating shaft on the end board of the shell; the bearing is arranged on a supporting end board outside the shell and has a distance with the end board of the shell. The utility model has the advantages that the gridding wheel and the shell are all manufactured by heat-resistant materials, thus being capable of resisting high temperature without deformation, and avoiding system halt caused by blocking; the annular shaft seal structure is arranged to prevent air shifting and ash leaking along the shaft and having a clean working environment; the bearing is arranged to be separated from the shell, thus preventing burning and prolonging the service life; the vane can be independently dismounted, thus reducing the maintaining cost; the air locking effect is good; the motor device is simplified, thus reducing the land occupied area.

Description

The high temperature air valve

The utility model relates generally to the control that cement manufacturing firing system temperature booster uses and goes into the control cock that the kiln raw material flow and cut off, and relates in particular to a kind of high temperature air valve.

Background technology

In the cement manufacturing, raw material need to deliver to high-order preheating tower before going into kiln, carry out preheating in temperature booster, are transported in the stove downwards by air valve then.The effect of air valve is the material of pulling over downwards, blocks the rising hot blast from stove simultaneously, prevents that hot blast from dissipating, and is beneficial to the energy secondary recovery.At present the air valve that adopts mainly comprises motor driver, is used for the lattice wheel of material toggling and with the housing of going up inlet point and lower discharge port, the mesh division board of lattice wheel is provided with anti-abrasion blade, motor driver rotates the raw material of pulling over by the rotating shaft drive lattice wheel that is supported on the bearing that passes the housing two end plates, and raw material are by delivering to stove under the housing bottom discharging opening.But there is following defective in existing air valve: the material of (1) lattice wheel and housing is wear-resistant steel such as 16Mn, its resistance to elevated temperatures is poor, because the material temperature reaches 200-300 ℃, furnace temperature reaches 500-600 ℃, therefore make lattice wheel and housing temperature distortion, be prone to the deadlock phenomenon that gets stuck; (2) bearing is arranged on the housing end plate, along can scurry out hot blast and leak ash of axle, at high temperature not only makes bearing deformation during work, burns out, and causes machine halt trouble, and the ashes that blows out is serious environment pollution also; (3) blade and lattice wheel then needs the monoblock mesh division board to be scrapped the maintenance cost height when blade damages for being wholely set; (4) lower discharge port of housing is shaped as squarely, and during discharging, raw material can be fast unobstructed descending, causes discharging opening the gap to occur and makes that hot blast is up to be spilt, and does not reach lock wind effect; (6) motor and reductor be arranged in parallel, and by pulley drive, when getting stuck, belt can play the machine insurance effect, but this structure facility complexity, floor area is big.

The utility model content

Main purpose of the present utility model is to provide a kind of high temperature air valve at the problems referred to above, makes it reach following purpose: (1) lattice wheel and housing are high temperature resistant indeformable; (2) the annulate shaft hermetically-sealed construction is set, prevents to scurry wind and leak ash; (3) bearing and housing break away from, and prevent high temperature deformation; (4) with blade and lattice wheel split setting, can change separately during damage; (5) improve the discharging opening shape, prevent to form the hot blast data feedback channel, the blocking-up hot blast; (6) connection mode of change motor and reductor when reservation gets stuck insurance function, simplified structure reduces floor area.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of high temperature air valve, mainly comprise motor driver, be used for the lattice wheel of material toggling and with the housing of going up inlet point and lower discharge port, the mesh division board of lattice wheel is provided with anti-abrasion blade, motor driver drives the rotation of lattice wheel by the rotating shaft that is supported on the bearing of passing the housing end plate, it is characterized in that described lattice wheel is a heat resisting steel lattice wheel, housing is the heat resisting steel housing; The rotating shaft extended position is provided with the annulate shaft hermetically-sealed construction on described housing end plate; Described bearing is arranged on outside and the housing end plate is possessed on the support end plate of distance.

Described hermetically-sealed construction is by the annulate shaft tubular sealed chamber of captiveing joint with housing, places the indoor gland cover that is wrapped in the packing in the rotating shaft and is arranged on the sealed chamber port to constitute.

Described blade is detachably to be installed on the mesh division board of lattice wheel.

The shape of described lower discharge port is a right-angled trapezium.

Described motor driver is to connect and compose by motor, reductor and drive coupling are coaxial.

The beneficial effects of the utility model are: high temperature resistant indeformable because lattice wheel and housing all adopt heat-resisting steel material to make, therefore effectively avoided the deadlock phenomenon that gets stuck, and assurance equipment normally moves; The annulate shaft hermetically-sealed construction is set, prevents that scurrying wind along axle leaks ash, makes the working environment cleaning; Bearing is arranged on the housing end plate to be possessed on the support end plate of distance, breaks away from high temperature heat source, prevents scaling loss, and service life is by extending to 3-5 present half a year; Blade detachably is arranged on the lattice wheel, in use after the wearing and tearing, can change separately, need not scrap with mesh division board integral body, significantly reduces maintenance cost; The discharging opening improved shape is a right-angled trapezium, during discharging, raw material are accumulated to the right angle avris gradually from the hypotenuse side of right-angled trapezium mouth and just begin a large amount of blankings fast, can make discharging opening always remain on the state that raw material are filled like this, can not form the hot blast data feedback channel, guarantee lock wind effect; Motor and reductor change in the past the split state that be arranged in parallel, and coaxial connecting as one simplified facility, reduces floor area, and when getting stuck phenomenon simultaneously, the machine insurance of the alternative used drive belt of motor directly plays overload protective function.

Description of drawings

Fig. 1 is a main TV structure scheme drawing of the present utility model;

Fig. 2 is the A-A cross section view of Fig. 1;

Fig. 3 is the upward view of Fig. 1 middle shell.

Among the figure: 1 bearing, 2 support end plates, 3 housings, 3-1 housing end plate, inlet point on 4,5 lower discharge ports, 6 lattices wheel, 6-1 blade, 6-2 mesh division board, 7 packings, 8 sealed chambers, 9 drive couplings, 10 reductors, 11 motors, 12 gland covers, 13 rotating shafts, 14 supports, 15 motor drivers.

Below in conjunction with drawings and Examples the utility model is described in detail.

The specific embodiment

As shown in Figure 1-Figure 3, it is a kind of high temperature air valve, mainly comprise motor driver 15, be used for the lattice wheel 6 of material toggling and with the housing 3 of going up inlet point 4 and lower discharge port 5, the mesh division board 6-2 of lattice wheel 6 is provided with anti-abrasion blade 6-1, motor driver 15 drives 6 rotations of lattice wheel by the rotating shaft 13 that is supported on the bearing 1 of passing housing end plate 3-1, it is characterized in that described lattice wheel 6 is heat resisting steel lattice wheels, housing 3 is heat resisting steel housings, and heat resisting steel adopts commercially available 15CrMoV.Rotating shaft 13 extended positions are provided with the annulate shaft hermetically-sealed construction on described housing end plate 3-1; As shown in Figure 1, above-mentioned hermetically-sealed construction is by the annulate shaft tubular sealed chamber 8 of captiveing joint with housing 3, places the indoor gland cover 12 that is wrapped in the packing 7 in the rotating shaft and is arranged on the sealed chamber port to constitute; In actual fabrication, gland cover 12 is designed to have the ring cover of the annulate shaft flange that is sleeved in the rotating shaft 13, after packing 7 twisted rotary shafts 13 twine, gland cover 12 is contained in the gap of inserting in the rotating shaft 13 between sealed chamber 8 barrels and the rotating shaft 13 with its annulate shaft flange sleeve, packing is compressed, and by screw retention on tubular sealed chamber 8.Packing 7 is the graphite asbestos packings that contain tungsten filament, can directly buy in market.

Described bearing 1 is arranged on housing 3 outsides and possesses on the support end plate 2 of distance with housing end plate 3-1.In the present embodiment, support end plate 2 and be fixed on the support 14 of captiveing joint,, avoided high temperature to burn out distortion owing to leave high temperature heat source with housing end plate 3-1.Above-mentioned blade 6-1 is the lattice that detachably is installed in lattice wheel,, in this example, blade 6-1 be by screw retention to mesh division board 6-2.As shown in Figure 3, the shape of the lower discharge port 5 of above-mentioned housing 3 is right-angled trapezium, can effectively prevent to form the hot blast data feedback channel, and blocking-up is from the hot blast of cement burning stove.Above-mentioned motor driver 15 be by; reductor 10 and drive coupling 9 coaxial connecting and composing; be arrangeding in parallel in the connection of motor and reductor and the prior art, it is different to be connected with belt; adopt coaxial connection; structure is simple and direct; reduce to take up an area of, and for the phenomenon that gets stuck, the machine insurance function of the alternative existing drive belt of motor directly plays overload protective function.

The above only is a preferred embodiment of the present utility model, is not shape material of the present utility model and structure are done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs to technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of high temperature air valve, mainly comprise motor driver, be used for the lattice wheel of material toggling and with the housing of going up inlet point and lower discharge port, the mesh division board of lattice wheel is provided with anti-abrasion blade, motor driver drives the rotation of lattice wheel by the rotating shaft that is supported on the bearing of passing the housing end plate, it is characterized in that described lattice wheel is a heat resisting steel lattice wheel, housing is the heat resisting steel housing; The rotating shaft extended position is provided with the annulate shaft hermetically-sealed construction on described housing end plate; Described bearing is arranged on outside and the housing end plate is possessed on the support end plate of distance.

2, high temperature air valve according to claim 1 is characterized in that described hermetically-sealed construction is by the annulate shaft tubular sealed chamber of captiveing joint with housing, places the indoor gland cover that is wrapped in the packing in the rotating shaft and is arranged on the sealed chamber port to constitute.

3, high temperature air valve according to claim 1 and 2 is characterized in that described blade is detachably to be installed on the mesh division board of lattice wheel.

4, high temperature air valve according to claim 3, the shape that it is characterized in that described lower discharge port is a right-angled trapezium.

5, high temperature air valve according to claim 4 is characterized in that described motor driver is to connect and compose by motor, reductor and drive coupling are coaxial.