CN2900532Y

CN2900532Y - Movable furnace grating and gas generating fornace equipped with movable furnace grating

Info

Publication number: CN2900532Y
Application number: CN 200620073023
Authority: CN
Inventors: 王忠国; 沈玉泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-29
Filing date: 2006-04-29
Publication date: 2007-05-16
Anticipated expiration: 2016-04-29

Abstract

The utility model provides a moving grate utilized on solid fuel boiler and a gas producer plant equipped with moving grate. In the moving grate is a plurality of moving grate bars with the bars interveining with each other. The utility model has a simple structure and can effectively break the slag bonding, improve the combustion and ventilation, and reduce the leak of granule fuel. The gas producing plant equipped with such moving grate can promote the burning efficiency, reduce the soot pollution, simultaneously, the utility model can achieve a higher reliability of equipment operation.

Description

Moving grate and be equipped with the producer gas generator of moving grate

Technical field:

The utility model relates to a kind of fire grate device that is used to use solid fuel fired boiler, relates in particular to a kind of rotating moving grate device.

The utility model also relates to a kind of gazogene that is equipped with moving grate.

Background technology:

At present, in order to reduce the soot emissions of Industrial Stoves and boiler, the use of producer gas generator is very extensive.Producer gas generator is to be raw material with solid coal fuel, adopts water vapor or other vaporization agents, carries out physical-chemical reaction, makes solid coal fuel be converted into the device of geseous fuel.Coal generates coal gas after vaporizing, can improve fuel combustion efficiency greatly in the use, reduces exhaust emission significantly, and especially the burning and exhausting for existing small-sized industrial boiler and kiln has great improvement.The producer gas generator development has broad varietys such as fixed bed producer, fluidized-bed producer and air flow bed producer so far.But be limited to device fabrication cost and technical sophistication degree, the present the most widely used small-sized atmospheric fixed bed gas-producer that is still.Simple in structure, the low cost of manufacture of such producer, and manipulate handy and safe, but its vaporization is subjected to particle size restrictions with raw material, and the coal utilization ratio of raw materials is not high, in case cloth wind is inhomogeneous simultaneously, is easy to slagging scorification, and scarfing cinder ash discharge difficulty causes the stove decrease in efficiency.

The gear hobbing fire grate that the ZL02270409.4 patent provides a kind of producer gas generator to use comprises one group of rotation axis, is arranged at intervals with gear hobbing on the rotation axis, the gear hobbing dislocation engagement on the adjacent rotated axle.Should turn the gear hobbing fire grate, can solve break, slagging-off problem preferably, but, be only applicable to square furnace, and can not solve the coal charge leakage problem simultaneously because of adopting the gear hobbing pivot structure.The ZL90215760.4 patent disclosure a kind of boiler moving grate, its fire grate is made of five moving grates, in fire grate, be provided with the fire grate axle, the two ends of fire grate axle are placed in the axle sleeve of both sides fire grate beam, simultaneously, the rocking handle that two connecting plates clip fire grate is set, and handle shakes the drive fire grate and is horizontal sextant angle 20 degree swings.This patent utilization moving grate is pushed fuel aside burning, can improve the ventilation condition of zone of combustion, realizes than the small grain size fuel combustion, but because it has adopted rectangle plane fire grate bar, in actually operating, can't carry out the break scarfing cinder easily.And using coking coal with raw material in the vaporization of producer gas generator more, coking and slagging very easily in its burning if clear deslagging is not smooth, must cause the producer gas generator can not steady running, increases safety in production hidden danger.

Technology contents:

Technical problem to be solved in the utility model is, provides a kind of simple in structure, can reduce fuel and leak, the easy to operate moving grate device of break scarfing cinder simultaneously.

Moving grate described in the utility model comprises fire-grating frame, moving grate bar and fire grate wheelwork, and moving grate bar one end is movably connected on the fire-grating frame, and the other end is connected with the fire grate wheelwork; It is characterized in that: described moving grate bar has the wing bar, the arrangement that intermeshes of the wing bar of adjacent fire grate bar.

Because the utility model has adopted the moving grate of band wing bar, when rotating moving grate, the wing bar on the fire grate bar can be dialled brokenly slagging scorification preferably, improves burning and ventilates; In normal operation simultaneously, the interlaced engagement of fire grate bar upper fin bar can reduce small grain size fuel and leak, and reduces waste of fuel.

According to the shape and the size of the body of heater that will assemble, the number of moving grate bar can suitably be set, and suitably adjust its respective length, and the edge shape of the wing bar on the close moving grate bar of furnace wall.

Easy in order to make, and obtain good cloth wind regulating effect simultaneously, the wing bar of described fire grate bar can be laid in the one or both sides of fire grate bar equably, and the wing strip can adopt rectangle, trilateral or semicircle.

Fire grate is changed in order to save, the cost of overhaul, and moving grate bar described in the utility model can be set to tube-in-tube structure, that is: the outer tube that will have the wing bar is set on the inner sleeve, and outer tube can rotate along with the rotation of inner sleeve; Inner sleeve one end is movably connected on the fire-grating frame, and the other end is connected with the fire grate wheelwork.

In order to make the maintenance dismounting more convenient, can be with the above-mentioned outer tube branch plurality of sections that has the wing bar, closely arrangement is enclosed within on the inner sleeve.During maintenance, as long as take out inner sleeve, the fire grate bar that just can dismantle easily and must change.

Fire grate wheelwork described in the utility model is done axial upset respectively in order to handle each moving grate bar, carries out break, removes slag operation, or carry out cloth wind and regulate operation.This fire grate wheelwork can be a manual rotating device, also can be mechanical rotation device.Usually can adopt transmission mechanisms such as crank drive, geartransmission, or directly adopt Chinese patent 90215760.4 disclosed fire grate wheelworks.

It is a kind of easy and simple to handle that the utility model provides, manual fire grate wheelwork simple in structure, that is: and the number according to the moving grate bar is provided with pull bar; One end of moving grate bar intersects vertically with pull bar respectively, connects by bolt; The pull bar the other end all by bearing pin or bolted splice in push pedal; Middle pull bar can suitably extend, and exceeds push pedal, as the operation handle arm of this fire grate wheelwork.In the actually operating, the middle operation handle arm of push-and-pull can be realized the axial rotation of each fire grate bar.

Because the utility model has adopted the moving grate of band wing bar, can carry out adjusting of cloth wind and break scarfing cinder operation at any time according to the actual operating state of producer gas generator, therefore greatly reduce maintenance cost, reduced operating safety hidden danger.It is rational in infrastructure, also is fit to the technological transformation of domestic medium-sized and small enterprises coal combustion equipment.

The utility model also provides a kind of producer gas generator, and this producer gas generator is equipped with foregoing moving grate.Specifically, the moving grate bar of this producer gas generator assembling has the wing bar, the arrangement that intermeshes of the profile of tooth wing bar of adjacent fire grate bar; The moving grate bar is handled by the fire grate wheelwork, can distinguish axial rotation.

Because of having assembled moving grate described in the utility model, the break of producer gas generator, slagging-off are easy and simple to handle, need not the blowing out scarfing cinder, can keep the body of heater plaster layer thickness comparatively easily, and control stove layer is stable, prevents the furnace bottom pressure surge; Can by adjusting the moving grate rotational angle, regulate ventilation at any time according to the working order of producer simultaneously, also reduce body of heater slagging scorification, coking speed, improve plant factor.

Description of drawings:

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

Fig. 2, Fig. 3, Fig. 4 are respectively moving grate wing strip synoptic diagram of the present utility model;

Fig. 5 is a moving grate example structure synoptic diagram of the present utility model;

Fig. 6 is that the A-A of Fig. 5 is to sectional view;

Fig. 7 is a moving grate wheelwork structural front view of the present utility model;

Fig. 8 is a moving grate wheelwork structure vertical view of the present utility model;

Fig. 9 producer gas generator structural representation of the present utility model.

Specific embodiment:

Now in conjunction with the accompanying drawings the utility model is further specified:

As shown in Figure 1, moving grate of the present utility model comprises fire-grating frame 1, moving grate bar 2 and fire grate wheelwork 3; One end of moving grate bar 2 penetrates the pilot hole 5 that is located on the fire-grating frame 1, and the other end is fixedlyed connected with fire grate wheelwork 3; Moving grate bar 2 has wing bar 4, the arrangement that intermeshes of the wing bar of adjacent fire grate bar.

As Fig. 2, Fig. 3, shown in Figure 4, the moving grate bar 2 that the utility model adopts, the wing bar 4 that its one or both sides have can be respectively rectangle, trilateral or semicircle arbitrary planeform.

As Fig. 5 and shown in Figure 6, the moving grate bar 2 that the utility model adopts comprises the outer tube 5 and the inner sleeve 6 that have wing bar 4, and outer tube 5 is divided into plurality of sections, closely arranges and is set on the inner sleeve 6, and outer tube 5 can rotate along with the rotation of inner sleeve 6; Inner sleeve 6 one ends are provided with connecting hole 8.

As shown in Figures 7 and 8, the moving grate wheelwork that the utility model adopts is a pull bar push-pull device, pull bar 7 and the corresponding one by one setting of moving grate bar 2; Moving grate bar 2 intersects vertically with pull bar 7 respectively, and an end of pull bar 7 penetrates respectively and is located at moving grate bar 2 and stretches out the connecting hole 8 of the outer end of body of heater and fixing with bolt 21; Pull bar 7 the other ends are clamped by two push pedals 9, and penetrate with bolt 22 and to be connected in the push pedal 9; Connecting hole 23 in the push pedal 9 can suitably be increased to two ends by the centre, to guarantee that pull bar has enough angle of rotation to drive the moving grate bar and rotates; Middle pull bar can suitably extend, and exceeds push pedal, as the operation handle arm 10 of this fire grate wheelwork.In actually operating, push-and-pull middle operation handle arm 10 in front and back can be realized the axial upset of fire grate.

As shown in Figure 9, producer gas generator described in the utility model can adopt existing all kinds of fixed bed coal gas producer, and it is assembled above-mentioned moving grate.Producer gas generator comprises furnace water jacket 11 and gas generating chamber 12; Body of heater one side is provided with air outlet 13 and air taking port 14; The body of heater napex is established vapour outlet 15, and steam return line is connected and leads on the bottom of furnace body vent-pipe; The body of heater top and the bottom are established water inlet pipe 16 and rising pipe 17 respectively; Moving grate 18 is equipped with in the bottom in combustion chamber of furnace body; Moving grate 18 is connected on the fire grate wheelwork 3.In the actual use, can rotate moving grate at any time, in time dial slag, adjust ventilation in the stove according to stove internal combustion situation.

Claims

1, a kind of moving grate comprises fire-grating frame, moving grate bar and fire grate wheelwork, and moving grate bar one end is movably connected on the fire-grating frame, and the other end is connected with the fire grate wheelwork; It is characterized in that: described moving grate bar has the wing bar, the arrangement that intermeshes of the wing bar of adjacent fire grate bar.

2, moving grate as claimed in claim 1 is characterized in that: described moving grate bar is a tube-in-tube structure, that is: the outer tube that will have the wing bar is set on the inner sleeve, and outer tube can rotate along with the rotation of inner sleeve; Inner sleeve one end is movably connected on the fire-grating frame, and the other end is connected with the fire grate wheelwork.

3, moving grate as claimed in claim 2 is characterized in that: the described outer tube branch plurality of sections that has the wing bar, closely arrangement is enclosed within on the inner sleeve.

4, moving grate as claimed in claim 1 or 2 is characterized in that: described wing bar planeform can be a kind of in rectangle, trilateral or the semicircle.

5, moving grate as claimed in claim 1 or 2 is characterized in that: described fire grate wheelwork comprises pull bar, push pedal and operation handle arm; Pull bar is corresponding one by one with the moving grate bar and intersect vertically fixedly connected; The pull bar the other end is hinged in the push pedal respectively.

6, a kind of producer gas generator is equipped with moving grate in the body of heater, it is characterized in that: described moving grate is that aforementioned arbitrary claim is described a kind of.