CN201277561Y - Rubbish pre-heating and drying mechanism - Google Patents
Rubbish pre-heating and drying mechanism Download PDFInfo
- Publication number
- CN201277561Y CN201277561Y CNU2008201231022U CN200820123102U CN201277561Y CN 201277561 Y CN201277561 Y CN 201277561Y CN U2008201231022 U CNU2008201231022 U CN U2008201231022U CN 200820123102 U CN200820123102 U CN 200820123102U CN 201277561 Y CN201277561 Y CN 201277561Y
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- fire grate
- end locating
- drying
- heating
- grate segment
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Abstract
A garbage preheating drying device comprises a framework, stoker sheets and a drying wind chamber, and is characterized in that the stoker sheet is made of heat-proof cast iron or thermally insulated cast-steel and is arranged above the framework, the internal side of the stoker sheet has a front end locating hole and a rear end locating hole, tapered type wind-distributing holes are arranged on the stoker sheet, the end of the drying device is immersed in a cyclical fluidized-bed dense-phase zone, and the flame-proof wear-resisting materials are employed to construct. The garbage preheating drying device in the utility model is one-stage or two-stage arranged, when in two-stage arrangement, the stepwise arrangement is provided between the previous stage and the rear stage, each stage of the preheating drying device is all composed of more than two rows of stoker sheets, each row has more than two stoker sheets, each row of stoker sheets is located by a front end and a rear end locating shafts, and the stepwise arrangement is provided between the front and the rear rows of stoker sheets. The garbage preheating drying device has the advantages that the stepwise combination of a plurality of rows of stoker sheets can not only strengthen the drying effect, but also prevent the structural damage caused by thermal expansion, the stepwise arrangement of the two-stage drying device can lead the garbage to fall off and loosen in the drying process, which strengthens the drying effect of garbage.
Description
Technical field
The utility model relates to a kind of garbage pre-heating and drying mechanism, belongs to field of power machinery.
Background technology
In the process of circulating fluid bed garbage furnace burning domestic garbage, refuse moisture content and the stability and the rubbish burn-off rate that change the incinerator operation have significant effects.Simultaneously, refuse moisture content and refuse thermal value have confidential relation, usually, refuse moisture content is high more, and refuse thermal value is low more, in order to realize the smooth combustion of rubbish, the auxiliary fuel of required interpolation is just many more in combustion process, thereby has increased the operating cost of incinerator.For operation stability and the rubbish burn-off rate that improves incinerator, and the operating cost of reduction incinerator, before waste incineration, carry out the garbage pre-heating drying and show important especially.
In order to realize the predrying of high-moisture rubbish, the research of various drying devices is also arranged, as have the lorry of liquid-leaking nozzle and hot blast manifold, utilize high-temperature flue gas to carry out dry drumdrier, and the drying oven etc. that utilizes the smoke evaporative refuse moisture.These drying devices mostly are independently drying device greatly, for reaching the environment protection emission purpose, also need at exit outfit exhaust gas processing device, even need the percolate of extra process discharging.In addition, above-mentioned drying garbage device is difficult to satisfy the demand of bulky refuse CIU garbage pre-heating drying mostly.
People such as Zhang Yanguo had once invented a kind of charging and drying device (ZL 01201538.5) that is used for garbage incinerating system, this device is made up of feed hopper and the material feed mechanism that is arranged on below the feed hopper, and the material feed mechanism comprises slide block propulsive mechanism and mobile drying bed.Before this device is applied in the recirculating fluidized bed CIU, the preheating and drying and the charging of high-moisture rubbish have successfully been realized.But this patent does not provide the architectural feature of this drying device.
The utility model content
The purpose of this utility model is to provide the structure of garbage pre-heating and drying mechanism, and on the basis of above-mentioned patent, improve the layout of garbage pre-heating and drying mechanism, make the garbage pre-heating drying effect of bulky refuse CIU more stable, effectively reduce refuse moisture and change the influence of fluctuations that circulating fluid bed garbage is caused.
The utility model is achieved through the following technical solutions:
A kind of technical scheme is: a kind of garbage pre-heating and drying mechanism, constitute by skeleton, fire grate segment and dry air compartment, and described fire grate segment is formed by heat-resisting cast iron or heat resisting cast steel casting, is arranged on the skeleton top; The fire grate segment inboard is provided with front end locating hole and rear end locating hole, and fire grate segment is provided with tapering type wind distributing hole; The skeleton both sides are provided with the skeleton locating hole; The end of pre-heating and drying mechanism is immersed in the recirculating fluidized bed emulsion zone, adopts refractory material to build by laying bricks or stones.
In the technique scheme, described fire grate segment is that along rubbish direction of motion Boulez, every row has 2 above fire grate segments more than 2 rows; Every grate furnace screening is by front end locating shaft and rear end locating shaft location, and the front end locating hole that the front end locating shaft passes same grate furnace screening connects, and the rear end locating hole that the rear end locating shaft passes same grate furnace screening connects; Be stagger between the front and rear row fire grate segment.The indoor drying medium of dry wind sprays into along the rubbish direction of motion from the tapering type wind distributing hole on the fire grate segment.
Another kind of technical scheme is: a kind of garbage pre-heating and drying mechanism is made of skeleton, fire grate segment and dry air compartment.Described pre-heating and drying mechanism comprises front and back stages, and each level is formed by skeleton, fire grate segment and dry air compartment, is stagger between previous stage and the back one-level; Described fire grate segment is formed by heat-resisting cast iron or heat resisting cast steel casting, is arranged on the skeleton top; The fire grate segment inboard is provided with front end locating hole and rear end locating hole, and fire grate segment is provided with tapering type wind distributing hole; The skeleton both sides are provided with the skeleton locating hole; The end of final stage drying device is immersed in the recirculating fluidized bed emulsion zone, adopts Fire and abrasion resistant material to build by laying bricks or stones.
For second kind of technical scheme of the present utility model, its feature also is: the fire grate segment of every grade of pre-heating and drying mechanism is more than 2 rows, and along rubbish direction of motion Boulez, every row has 2 above fire grate segments; Every grate furnace screening on every grade of drying device is by front end locating shaft and rear end locating shaft location, and the front end locating hole that the front end locating shaft passes same grate furnace screening connects, and the rear end locating hole that the rear end locating shaft passes same grate furnace screening connects; Be stagger between the front and rear row fire grate segment.The indoor drying medium of dry wind sprays into along the rubbish direction of motion from the tapering type wind distributing hole on the fire grate segment.
The utility model compared with prior art has the following advantages and beneficial effect: the utility model has made full use of the slow reaction process of fire grate, have be skillfully constructed, implement easily, advantage such as reliable operation; The utility model is combined by many grate furnaces screening staged, has both strengthened drying effect, has prevented the structural deterioration that thermal expansion causes drying device again; The staged setting of two-stage pre-heating and drying mechanism can make rubbish fall in dry run, produces to become flexible, and further strengthens the drying effect of rubbish inside.
Description of drawings
Fig. 1 is the garbage pre-heating and drying mechanism schematic diagram that the related one-level of the utility model is arranged.
Fig. 2 is that the garbage pre-heating and drying mechanism of the related two stage arrangement of the utility model is arranged schematic diagram.
Fig. 3 overlooks the layout schematic diagram for the related garbage pre-heating and drying mechanism of the utility model.
Fig. 4 is the related garbage pre-heating and drying mechanism fire-grating chip architecture schematic diagram of the utility model.
Fig. 5 is the related garbage pre-heating and drying mechanism skeleton schematic diagram of the utility model.
Among the figure: the 1-skeleton; The 2-fire grate segment; 3-front end locating hole; 4-rear end locating hole; The 5-wind distributing hole; The dry air compartment of 6-higher level; The 7-wind-distributing pipe; The dry air compartment of 8-subordinate; 9-recirculating fluidized bed emulsion zone; 10-front end locating shaft; 11-rear end locating shaft; 12-skeleton locating hole.
The specific embodiment
Describe concrete structure of the present utility model, operation principle and embodiment in detail below in conjunction with accompanying drawing:
Fig. 1 is the garbage pre-heating and drying mechanism schematic diagram that the related one-level of the utility model is arranged.As shown in Figure 1, the utility model is made of the dry air compartment 6 of skeleton 1, fire grate segment 2 and higher level.Described fire grate segment 2 is formed by heat-resisting cast iron or heat resisting cast steel casting, be arranged on skeleton 1 top (as shown in Figure 3), skeleton 1 is as brace summer, constitute the supporting construction of pre-heating and drying mechanism, skeleton locating hole 12 is laid in skeleton 1 both sides simultaneously, the quantity of skeleton locating hole 12 and position cooperate with the fire grate segment locating hole according to the quantity of fire grate segment locating hole and position and decide, and fire grate segment is played the role of positioning (as shown in Figure 5).Each fire grate segment inboard is equipped with front end locating hole 3 and rear end locating hole 4, and is equipped with tapering type wind distributing hole 5 (as shown in Figure 4) on each fire grate segment.Drying device is divided into the dry air compartment 6 of higher level, adopts high-head wind or high-temperature flue gas as drying medium.Drying medium in the dry air compartment 6 of higher level sprays into along the rubbish direction of motion from the tapering type wind distributing hole 5 on the fire grate segment, and the rubbish on the drying device is carried out preheating and drying.According to the length dimension of drying device along the rubbish direction of motion, fire grate segment is more than 2 rows, along rubbish direction of motion Boulez, is stagger between the front and rear row fire grate segment; According to vertical depth dimensions of drying device, every grate furnace row all has 2 above fire grate segments simultaneously.Such set-up mode can reduce the rigid design of drying device and increases its flexible design, thereby increases the service life of drying device; Simultaneously also can make drying garbage more even.Every grate furnace screening is by same front end locating shaft 10 and same rear end locating shaft 11 location, and the front end locating hole 3 that front end locating shaft 10 passes same grate furnace screening connects, and the skeleton locating hole 12 that passes relevant position on the skeleton positions; The rear end locating hole 4 that rear end locating shaft 11 passes same grate furnace screening connects, and the skeleton locating hole 12 that passes relevant position on the skeleton positions.The second half section of drying device is immersed in the recirculating fluidized bed emulsion zone 9, in order to prevent high temperature corrode in the emulsion zone, prevent the wearing and tearing of high concentration material simultaneously to drying device, the end of pre-heating and drying mechanism adopts Fire and abrasion resistant material to build by laying bricks or stones, rubbish is more smooth and easy, emulsion zone burning is gone in landing more equably in order to make, and this section is tilted to down sloping shape to build by laying bricks or stones along drying device to the direction of emulsion zone.
The garbage pre-heating and drying mechanism schematic diagram of the two stage arrangement that Fig. 2 relates to for the utility model, when the quantity of refuse of required preheating and drying bigger, and when the garbage feeding stroke is longer, pre-heating and drying mechanism adopts front and back stages to arrange, higher level's pre-heating and drying mechanism is made up of the dry air compartment 6 of skeleton 1, fire grate segment 2 and higher level; Subordinate's pre-heating and drying mechanism is made up of the dry air compartment 8 of skeleton 1, fire grate segment 2 and subordinate.Be stagger between previous stage pre-heating and drying mechanism and the back one-level pre-heating and drying mechanism.Fire grate segment 2 is formed by heat-resisting cast iron or heat resisting cast steel casting, be arranged on skeleton 1 top (as shown in Figure 3), skeleton 1 is as brace summer, constitute the supporting construction of pre-heating and drying mechanism, skeleton locating hole 12 is laid in skeleton 1 both sides simultaneously, the quantity of skeleton locating hole 12 and position cooperate with the fire grate segment locating hole according to the quantity of fire grate segment locating hole and position and decide, and fire grate segment is played the role of positioning (as shown in Figure 5).Each fire grate segment inboard is equipped with front end locating hole 3 and rear end locating hole 4, and is equipped with tapering type wind distributing hole 5 (as shown in Figure 4) on each fire grate segment.Higher level's drying device is divided into the dry air compartment 6 of higher level, in establish wind-distributing pipe 7, feed high-head wind or high-temperature flue gas as drying medium.Subordinate drying device below is provided with the dry air compartment 8 of subordinate.The indoor drying medium of dry wind sprays into along the rubbish direction of motion from the tapering type wind distributing hole 5 on the fire grate segment, and the rubbish on the drying device is carried out preheating and drying.According to the length dimension of drying device along the rubbish direction of motion, fire grate segment is more than 2 rows, along rubbish direction of motion Boulez, is stagger between the front and rear row fire grate segment; According to vertical depth dimensions of drying device, every grate furnace row all has 2 above fire grate segments simultaneously.Such set-up mode can reduce the rigid design of drying device and increases its flexible design, thereby increases the service life of drying device; Simultaneously also can make drying garbage more even.Every grate furnace screening of every grade of drying device is by same front end locating shaft 10 and same rear end locating shaft 11 location, the front end locating hole 3 that front end locating shaft 10 passes same grate furnace screening connects, and the skeleton locating hole 12 that passes relevant position on the skeleton positions; The rear end locating hole 4 that rear end locating shaft 11 passes same grate furnace screening connects, and the skeleton locating hole 12 that passes relevant position on the skeleton positions.The second half section of drying device is immersed in the recirculating fluidized bed emulsion zone 9, in order to prevent that high concentration material is to the wearing and tearing of drying device in the emulsion zone, the end of drying device adopts Fire and abrasion resistant material to build by laying bricks or stones, rubbish is more smooth and easy, emulsion zone burning is gone in landing more equably in order to make, and this section is tilted to down sloping shape to build by laying bricks or stones along drying device to the direction of emulsion zone.
Claims (6)
1. a garbage pre-heating and drying mechanism is made of skeleton (1), fire grate segment (2) and dry air compartment, it is characterized in that: described fire grate segment (2) is formed by heat-resisting cast iron or heat resisting cast steel casting, is arranged on skeleton (1) top; The fire grate segment inboard is provided with front end locating hole (3) and rear end locating hole (4), and fire grate segment is provided with tapering type wind distributing hole (5); Described skeleton (1) both sides are provided with skeleton locating hole (12); The end of drying device is immersed in the recirculating fluidized bed emulsion zone (9), adopts Fire and abrasion resistant material to build by laying bricks or stones.
2. garbage pre-heating and drying mechanism according to claim 1 is characterized in that: described fire grate segment is that along rubbish direction of motion Boulez, every row has 2 above fire grate segments more than 2 rows; Every grate furnace screening is by front end locating shaft (10) and rear end locating shaft (11) location, and the front end locating hole (3) that front end locating shaft (10) passes same grate furnace screening connects, and the rear end locating hole (4) that rear end locating shaft (11) passes same grate furnace screening connects; Be stagger between the front and rear row fire grate segment.
3. garbage pre-heating and drying mechanism according to claim 1 and 2 is characterized in that: the indoor drying medium of dry wind sprays into along the rubbish direction of motion from the tapering type wind distributing hole (5) on the fire grate segment.
4. garbage pre-heating and drying mechanism, it is characterized in that: described pre-heating and drying mechanism comprises front and back stages, each level is formed by skeleton (1), fire grate segment (2) and dry air compartment, previous stage with afterwards be stagger between the one-level; Described fire grate segment (2) is formed by heat-resisting cast iron or heat resisting cast steel casting, is arranged on skeleton (1) top; The fire grate segment inboard is provided with front end locating hole (3) and rear end locating hole (4), and fire grate segment is provided with tapering type wind distributing hole (5); Described skeleton (1) both sides are provided with skeleton locating hole (12); The end of final stage pre-heating and drying mechanism is immersed in the recirculating fluidized bed emulsion zone (9), adopts Fire and abrasion resistant material to build by laying bricks or stones.
5. garbage pre-heating and drying mechanism according to claim 4 is characterized in that: the fire grate segment of every grade of pre-heating and drying mechanism is more than 2 rows, and along rubbish direction of motion Boulez, every row has 2 above fire grate segments; Every grate furnace screening on every grade of drying device is by front end locating shaft (10) and rear end locating shaft (11) location, the front end locating hole (3) that front end locating shaft (10) passes same grate furnace screening connects, and the rear end locating hole (4) that rear end locating shaft (11) passes same grate furnace screening connects; Be stagger between the front and rear row fire grate segment.
6. according to claim 4 or 5 described garbage pre-heating and drying mechanisms, it is characterized in that: the indoor drying medium of dry wind sprays into along the rubbish direction of motion from the tapering type wind distributing hole (5) on the fire grate segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201231022U CN201277561Y (en) | 2008-10-15 | 2008-10-15 | Rubbish pre-heating and drying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201231022U CN201277561Y (en) | 2008-10-15 | 2008-10-15 | Rubbish pre-heating and drying mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN201277561Y true CN201277561Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201231022U Expired - Lifetime CN201277561Y (en) | 2008-10-15 | 2008-10-15 | Rubbish pre-heating and drying mechanism |
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| CN (1) | CN201277561Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614400B (en) * | 2009-07-31 | 2011-03-02 | 北京热华能源科技有限公司 | Fluidized selective deslagging device |
-
2008
- 2008-10-15 CN CNU2008201231022U patent/CN201277561Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614400B (en) * | 2009-07-31 | 2011-03-02 | 北京热华能源科技有限公司 | Fluidized selective deslagging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Nowva Energy Technology Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |