CN204829959U - But sediment sealing device is advanced in returning charge of cold sediment machine - Google Patents

Abstract

The utility model relates to a but sediment sealing device is advanced in returning charge of cold sediment machine, include the cylinder end cover, advance the sediment pipe and advance the sediment case, it is connected as an organic wholely to advance the sediment pipe and advance the sediment case, press circumference equipartition returning charge hole on the cylinder end cover, the returning charge pore pair answers position department to install the water conservancy diversion awl, the inboard of water conservancy diversion awl is equipped with the returning charge circle, the inboard concentric installation of circle of returning charge circle has the circle of receipt, the returning charge circles there is a class cinder hole according to the circumference equipartition, there is seal cover, the sealing ring of arranging with one heart in the cylinder end cover outside, sealing ring outside system have with the revolving to opposite backpitch guide slot of barrel, the receipt has circled the guide plate, the returning charge circle corresponding to the holing position that accepts the circle arranges the leading -in baffling board to cylinder end cover hole and the water conservancy diversion awl in of lime -ash. The utility model discloses the sediment sealing device that advances who has the returning charge function has solved the cold sediment machine ubiquitous of present most cylinder and enters dynamic and static combination department of sediment department and leak the sediment problem.

Description

A kind of lag cooler can returning charge dreg-charging sealing device

Technical field

The utility model belongs to lag cooler technical field, and being specifically related to a kind of lag cooler can returning charge dreg-charging sealing device.

Background technology

Lag cooler is made up of slag input body, cylinder, base, rotation system etc., cooling water is connected with in roller tube interlayer, inner barrel arranges flight, circulating fluidized-bed boiler ash is delivered to slag output end by lag cooler slag input end by the cylindrical shell the rolled auger power that flight produces close to the inner portion, lime-ash and lag cooler carry out heat exchange during this period, the heat that warm sludge discharges is taken away by cooling water, and warm sludge is cooled.

When lag cooler runs; slag input casing and slag feed pipe are fixed; and cylinder rotates; therefore there is face of being association of activity and inertia; because this place's temperature is higher; general higher than 900 DEG C; therefore hermetically-sealed construction often easily lost efficacy, and the life-span is shorter, and not easily changed; a large amount of high temperature is often caused to spill at the warm sludge of 900 DEG C; so not only cause heat waste, affect boiler room integrated environment health, lag cooler maintenance down can be caused time serious and then cause boiler shutdown; the equipment of boiler slag removal is once break down and can cause blowing out, great energy waste.This is contrary with the policy advocating now " energy-saving and emission-reduction ".And the more important thing is that the red slag of the high temperature spilt injures the personal safety of periphery inspection operation personnel herein.

Although existing barrel slag cooler has made many improvement, because structure limit, its sealing device used all falls flat.A lot of lag cooler adopts herein " small―gap suture sealing ", namely sound face respectively arranges an annulus cylinder, and two annulus cylinders are installed with one heart, and radius size difference is less, usually 2mm is less than, because slag exists granularity, be generally greater than 3mm, therefore lime-ash can not spill from this gap, but after running a period of time, due to factors such as barrel wear decline and high temperature deformations, this gap can become large, causes seal failure.

Utility model content

The purpose of this utility model be solve above-mentioned technical problem and provide a kind of for lag cooler slag input end be association of activity and inertia place lag cooler can returning charge dreg-charging sealing device.

For achieving the above object, the utility model adopts following technical scheme:

One can returning charge dreg-charging sealing device, comprise roller end cover, slag feed pipe and slag input case, described slag feed pipe and slag input case connect as one, circumferentially uniform three returning charge holes, place on described roller end cover, described in each, corresponding position, returning charge hole is provided with a deflection cone, the inner side of described deflection cone is provided with returning charge circle, the circle inner concentric of described returning charge circle is provided with and receives circle, described returning charge circle is circumferentially evenly equipped with three place's stream cinder holes, be back in the cylindrical shell of lag cooler for making from the described lime-ash receiving circle, inside the described circle receiving circle, sealing shroud is installed, sealing ring is provided with inside described sealing shroud, described sealing ring and sealing shroud arranged concentric, described deflection cone, returning charge circle, roller end cover, receive circle, sealing shroud and sealing ring rotate with described cylindrical shell, outside described sealing ring, car is shaped with the backpitch guide groove contrary with the rotation direction of described cylindrical shell, the described deflector receiving circumferentially uniform three drainage lime-ash on circle, described deflector is L shape, described returning charge circle corresponds to the described position of opening accepting circle and arranges that three for being directed into the deflection plate in roller end cover hole and deflection cone by lime-ash.

Described deflection cone is welded on described roller end cover.

Described returning charge circle encloses with reception and is welded in the lump outside described roller end cover.

Described sealing ring and sealing shroud are all welded in outside described roller end cover.

The utility model solves ubiquitous slag input place of current most of barrel slag cooler place of being association of activity and inertia with the dreg-charging sealing device of returning charge function and leaks slag problem, has great production practices and realistic meaning.

Accompanying drawing explanation

Figure 1 shows that a kind of lag cooler that the utility model embodiment provides can the structural representation of returning charge dreg-charging sealing device;

Lag cooler shown in Fig. 2 can the decomposed schematic diagram of returning charge dreg-charging sealing device;

Figure 3 shows that the enlarged diagram of I part in Fig. 1.

Detailed description of the invention

Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but the utility model is not limited to listed embodiment.

Refer to shown in Fig. 1 ~ 2, a kind of lag cooler can returning charge dreg-charging sealing device, comprise deflection cone 1, returning charge circle 2, roller end cover 3, receive circle 4, sealing shroud 5, sealing ring 6, slag feed pipe 7, slag input casing 8, wherein, slag feed pipe 7 and slag input case 8 body are connected as a single entity, during lag cooler work, this connector maintains static, deflection cone 1, returning charge circle 2, roller end cover 3, receive circle 4, sealing shroud 5 and sealing ring 6 rotate with cylindrical shell, wherein outside sealing ring 6, car is shaped with the backpitch guide groove contrary with cylindrical shell rotation direction, returning charge hole, circumference uniform distribution three place on roller end cover 3, three deflection cone 1 correspondences are arranged, be welded in inside end cap, stream cinder hole in circumference uniform distribution three place on returning charge circle 2, in order to be back to from receiving the lime-ash of circle 4 in cylindrical shell, and circle 4 is concentric installs with reception, and be welded in outside roller end cover 3 in the lump, sealing ring 6 and sealing shroud 5 also arranged concentric, be welded in outside roller end cover 3, receive circumference uniform distribution three deflectors 41 on circle 4, deflector is " L shape " steel plate, plays drainage lime-ash, need arrange according to cylindrical shell direction of rotation, on returning charge circle, 2 correspondences accept circle 4 position of opening and arrange three deflection plates 21, and deflection plate act as and is directed in ending cover hole and deflection cone 1 by lime-ash.

It should be noted that, in specific implementation, described returning charge circle, sealing shroud are labyrinth structures with coordinating of sealing ring.

Because former material-returning device is separation type, be generally three returning charge boxes or goat's horn, easily cause feed back not smooth; And before returning charge box and end cap weld seam shorter, therefore intensity is lower, and material returning device of the present utility model is overall structure, is welded as circumferential weld with end cap, and intensity is high, not easy to crack.

Further, the improvement that the utility model has done in sealing ring, changed backpitch guide groove into twin-feed spiral by former single thread, and the deboost produced so comparatively other structure is better, thus the lime-ash amount entering reception circle is diminished.

Further, in the utility model, described returning charge circle adds deflection plate, is easy to lime-ash like this and enters cylindrical shell.

See accompanying drawing 3, during lag cooler work, slag feed pipe and slag input casing maintain static, deflection cone, returning charge circle, roller end cover, receive circle, sealing shroud and sealing ring rotate with cylindrical shell, lime-ash enters drums inside from slag feed pipe, because lime-ash exists certain pressure, and can minority lime-ash be led in slag input casing in roller rotating process, after running a period of time, a certain amount of lime-ash can be gathered in casing, gap between pressure sealing ring and slag input casing outwardly, but due on sealing ring with backpitch guide groove, backpitch guide groove can produce reverse push power while cylindrical shell rotates, sealing ring and sealing shroud and the staggered formation labyrinth seal structure of slag input casing in addition.Therefore after the lime-ash that this place leaks enters hermetically-sealed construction, major part is pushed back slag input casing by backpitch guide groove is counter, can not overflow, another part lime-ash and the enable labyrinth structure that lays out finally also are collected by the reception circle outside labyrinth structure, because reception circle is an overall structure, intensity is high, and can more lime-ash be received, automatically returning charge circle is entered in the process that the drainage lime-ash receiving the deflector on circle can rotate at cylindrical shell, deflection cone is entered again under the guiding of the deflection plate of returning charge circle, finally be back in cylindrical shell, reach the object of returning charge, guarantee that lime-ash does not escape herein, the equipment that maintains runs on-the-spot safety and health, the lime-ash entering deflection cone flows by direction shown in arrow line in Fig. 3 10.

The utility model abandons " small―gap suture sealing " version that lag cooler in the past often uses, and by adopting the seal form of sealing ring backpitch guide groove and returning charge circle, making fabrication and installation easy, not only increasing the reliability of sealing, and easy access is changed.

Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.

More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.

Claims (4)

1. a lag cooler can returning charge dreg-charging sealing device, it is characterized in that, comprise roller end cover, slag feed pipe and slag input case, described slag feed pipe and slag input case connect as one, circumferentially uniform three returning charge holes, place on described roller end cover, described in each, corresponding position, returning charge hole is provided with a deflection cone, the inner side of described deflection cone is provided with returning charge circle, the circle inner concentric of described returning charge circle is provided with and receives circle, described returning charge circle is circumferentially evenly equipped with three place's stream cinder holes, be back in the cylindrical shell of lag cooler for making from the described lime-ash receiving circle, inside the described circle receiving circle, sealing shroud is installed, sealing ring is provided with inside described sealing shroud, described sealing ring and sealing shroud arranged concentric, described deflection cone, returning charge circle, cylinder and sealing ring rotate with described cylindrical shell, outside described sealing ring, car is shaped with the backpitch guide groove contrary with the rotation direction of described cylindrical shell, the described deflector receiving circumferentially uniform three drainage lime-ash on circle, described deflector is L shape, described returning charge circle corresponds to the described position of opening receiving circle and arranges that three for being directed into the deflection plate in roller end cover hole and deflection cone by lime-ash.

2. lag cooler can returning charge dreg-charging sealing device as claimed in claim 1, and it is characterized in that, described deflection cone is welded on described roller end cover.

3. lag cooler can returning charge dreg-charging sealing device as claimed in claim 2, it is characterized in that, described returning charge circle is welded in outside described roller end cover in the lump with receiving to enclose.

4. lag cooler can returning charge dreg-charging sealing device as claimed in claim 3, and it is characterized in that, described sealing ring and sealing shroud are all welded in outside described roller end cover.