CN215951422U - Refuse incinerator capable of retarding coking of side wall - Google Patents
Refuse incinerator capable of retarding coking of side wall Download PDFInfo
- Publication number
- CN215951422U CN215951422U CN202122012823.4U CN202122012823U CN215951422U CN 215951422 U CN215951422 U CN 215951422U CN 202122012823 U CN202122012823 U CN 202122012823U CN 215951422 U CN215951422 U CN 215951422U
- Authority
- CN
- China
- Prior art keywords
- side wall
- coking
- incinerator
- wind
- ash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model discloses a garbage incinerator for slowing down side wall coking, and belongs to the field of garbage incineration equipment. The utility model discloses a garbage incinerator for slowing down side wall coking, which comprises a furnace body; the furnace body is characterized by also comprising an air guide ash blocking strip which is a strip-shaped convex structure formed on the side wall above the grate sheet in the furnace body; the cross section of the wind-guiding ash-blocking strip perpendicular to the side wall direction is a trapezoidal surface, the bottom of the trapezoidal surface is fixedly connected with the side wall, and the top is parallel to the side wall. According to the utility model, the wind guide and ash blocking strip is arranged at the side wall above the grate segment to guide the wind fleeing from the gap between the side wall of the incinerator and the grate segment, so that the contact between fly ash and spark and the side wall of the incinerator is avoided, the coking phenomenon of the side wall is relieved, the wind guide and ash blocking strip with the trapezoidal section can strengthen the flow guide effect on the wind fleeing from the gap, the anti-coking effect is strengthened, and the wind guide and ash blocking strip has the advantages of simple structure, reasonable design and easiness in manufacturing.
Description
Technical Field
The utility model belongs to the field of garbage incineration equipment, and particularly relates to a garbage incinerator for slowing down coking of side walls.
Background
A certain gap exists between a fire grate segment and a side wall of the existing garbage incinerator, the gap cannot be avoided in design, the main purpose of the design is to reserve a space for thermal expansion of the fire grate and the incinerator in the thermal state operation process of the incinerator, however, in the operation process, the gap between the side wall of the incinerator and the fire grate segment is larger than the initial design value due to the thermal expansion and the extrusion of the garbage to the fire grate segment, thereby leading a large amount of primary air fed below the fire grate segment to escape from the gap between the fire grate segment and the side wall to cause the violent combustion of the garbage at the position, and carries a large amount of sparks and fly ash, the sparks and the fly ash directly scour the side wall, coke blocks are easily formed on the side wall, and certain cohesiveness is generated under the condition that the garbage layer material is burnt by flame, and newly raised fly ash and sparks are continuously adhered, so that the generation of coking on the side wall of the incinerator is further aggravated.
The technical means that project site is commonly used is to weld heat-resistant and wear-resistant steel plates at the gaps between the grate segments and the side walls, and the expansion gaps between the grate segments and the side walls of the incinerator are plugged, but because the grate segments need to slide and turn, the process can rub the heat-resistant and wear-resistant steel plates, and meanwhile, garbage above the steel plates can also cause a large amount of abrasion in the process of moving forwards above the grate, so the technical means of welding the steel plates can play a role in preventing wind channeling, but the service life is lower, and the steel plates are usually damaged in 1-2 months, and the function of blocking the wind channeling can not be continuously realized.
Through retrieval, the Chinese patent publication number: CN 111536531A; the publication date is as follows: 8, month 14 in 2020; the utility model discloses a furnace wall anti-coking device of a combustion section and a burnout section of a garbage incinerator, which comprises a cooling air conveying pipe, wherein an air door, an air box and a wall penetrating pipe are sequentially arranged on the conveying pipe according to the flowing direction of cooling air, the cooling air sequentially passes through the air door, the air box and the wall penetrating pipe through the conveying pipe and enters a hearth, and the wall penetrating pipe penetrates through the wall of the furnace wall in a vertical state at intervals of rows and columns; the cooling air takes secondary air, furnace wall cooling air and primary air of a waste incineration system or air pumped by an independent fan as an air source, the air box is attached to the outer sides of the furnace walls of the combustion section and the burn-out section, and the air box is of a hollow structure formed by outer guard plates and inner guard plates of the furnace walls of the combustion section and the burn-out section. This application sends into furnace through structural improvement with the cooling air in, plays the effect that prevents the brickwork coking, but this application need do great change to waste incinerator correlation structure, and the cost is with high costs, is not suitable for popularization and application.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention adopts the following technical solutions.
A garbage incinerator for slowing down coking of side walls comprises,
a furnace body;
further comprising:
the air guide ash blocking strip is a strip-shaped protruding structure formed on the side wall above the grate segment in the furnace body.
Furthermore, the section of the wind guide ash strip perpendicular to the side wall is a trapezoidal surface, the bottom of the trapezoidal surface is fixedly connected with the side wall, and the top bottom is parallel to the side wall.
Further, the length direction of the wind guide ash strip is parallel to the fire grate segment.
Further, the wind guide ash strip is formed by building refractory bricks.
Further, the wind-guiding dust-blocking strip comprises:
the heat-resistant wire netting is bent into an angle shape, and the angle part faces to the direction far away from the side wall;
the expansion screw penetrates through the edge part of the heat-resistant wire netting to fixedly connect the heat-resistant wire netting with the side wall;
the fireproof layer is formed by laying fireproof materials on the outer surface of the heat-resistant wire netting, and the outer surface of the fireproof layer is trapezoidal.
Further, the included angle alpha between the top surface of the air guide ash blocking strip and the side wall is = 15-25 degrees.
Further, the distance D = 500-900 mm from the lowest point of the bottom surface of the air guide ash blocking strip to the grate segment below the air guide ash blocking strip.
Further, the wind guide ash bar is arranged above the second incinerator unit and the third incinerator unit in the incinerator body.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the garbage incinerator for slowing down the side wall coking, the wind guide ash strips are arranged at the side wall above the grate segment to guide wind flowing in a gap between the side wall of the incinerator and the grate segment, so that contact between fly ash and mars and the side wall of the incinerator is avoided, and the side wall coking phenomenon is relieved;
(2) according to the garbage incinerator for slowing down the coking of the side walls, the air guide and ash blocking strips with the trapezoidal sections can strengthen the flow guide effect on the air outlet flow fleeing in the gaps, and the anti-coking effect is good;
(3) the garbage incinerator for slowing down the coking of the side wall has the advantages that the garbage incinerator in construction or the constructed garbage incinerator can be designed and formed adaptively, the construction cost is low, the construction difficulty is low, and the garbage incinerator is suitable for popularization and application;
(4) according to the garbage incinerator for slowing down the side wall coking, the air guide ash blocking strips are difficult to coke and form blocks and are difficult to be abraded by a garbage material layer through specific height position setting and top surface included angle design, the effective service life of the air guide ash blocking strips is long, and the garbage incinerator has a self-cleaning function;
(5) the utility model has simple structure, reasonable design and easy manufacture.
Drawings
FIG. 1 is a schematic view of the internal structure of a waste incinerator according to the present invention;
FIG. 2 is a cross-sectional view of the wind-guiding and dust-blocking strip of the present invention;
fig. 3 is a cross-sectional view of the wind-guiding and dust-blocking strip according to embodiment 5;
in the figure:
1. a furnace body;
10. fire grate segments; 11. a side wall; 12. an incinerator second unit; 13. an incinerator third unit;
2. wind guiding and ash blocking strips;
20. heat-resistant wire netting; 21. an expansion screw; 22. a refractory layer.
Detailed Description
The utility model is further described with reference to specific embodiments and the accompanying drawings.
Example 1
The garbage incinerator for slowing down the coking of the side walls comprises,
a furnace body 1;
further comprising:
the wind guide ash strip 2 is a strip-shaped protruding structure formed on the side wall 11 above the grate segment 10 in the furnace body 1.
The main reason of coking at the inner side wall 11 of the garbage incinerator is that a large amount of primary air flows out from a gap between the grate segment 10 and the side wall 11, and carries a large amount of sparks and fly ash to wash the side wall 11, so that coke blocks are formed, the fly ash has viscosity in a high-temperature environment and is lifted after being adhered continuously, and a method for relieving coking in the prior art is to weld a heat-resistant and wear-resistant steel plate at the gap between the grate segment 10 and the side wall 11 to seal the gap and avoid air flowing out.
As shown in fig. 1, in this embodiment, a wind-guiding ash-blocking strip 2 is formed by protruding a side wall 11 above a fire grate segment 10 in a furnace body 1, when viewed from a vertical direction, the wind-guiding ash-blocking strip 2 is located right above a gap between the fire grate segment 10 and the side wall 11, and when primary air escapes through the gap during operation of the garbage incinerator, the wind-guiding ash-blocking strip 2 blocks the wind flow from continuously attaching to the upward trend of the side wall 11 and guides the wind flow to the middle of the furnace, thereby avoiding the continuous scouring of the spark and the fly ash on the side wall 11 above the gap, and alleviating the coking phenomenon.
Example 2
The garbage incinerator for slowing down coking of the side walls is further improved on the basis of the embodiment 1, the cross section of the air guide ash blocking strip 2 perpendicular to the direction of the side walls 11 is a trapezoidal surface, the bottom of the trapezoidal surface is fixedly connected with the side walls 11, and the top of the trapezoidal surface is parallel to the side walls 11.
As shown in fig. 2, the cross section of the wind guiding and ash blocking strip 2 of the embodiment is trapezoidal, the bottom surface of the wind guiding and ash blocking strip 2, namely the surface corresponding to the trapezoidal waist, is an inclined surface, and the inclined surface can effectively guide the wind of the garbage incinerator from the gap in the operation process, reduce the impact of the wind flow on the bottom surface of the wind guiding and ash blocking strip 2, and has good anti-coking effect.
Example 3
The garbage incinerator for slowing down the side wall coking is further improved on the basis of the embodiment 2, and the length direction of the wind guide ash blocking strip 2 is parallel to the grate segments 10.
As shown in fig. 1, the wind guiding and ash blocking strips 2 of the present embodiment are arranged parallel to the arrangement direction of the fire grate segments 10, and the wind guiding and ash blocking strips 2 of the present embodiment can ensure the wind guiding effect of the arrangement position and reduce coking because the garbage is thinner and thinner during the burning process, that is, the maximum height position of the garbage is gradually reduced along with the operation direction, and the applicant researches and discovers that the wind guiding and ash blocking strips 2 are farther from the fire grate segments 10, and the wind guiding effect is worse.
Example 4
The garbage incinerator for slowing down the coking of the side walls is further improved on the basis of the embodiment 3, and the air guide ash blocking strips 2 are formed by building refractory bricks.
As shown in fig. 2, the garbage incinerator for slowing down coking of the side walls according to the embodiment is suitable for being constructed by a refractory manufacturer directly preparing special bricks and installing and molding the special bricks at the position of the designated side wall 11 in the furnace body 1.
Example 5
The garbage incinerator for slowing down the coking of the side wall of the embodiment is further improved on the basis of the embodiment 3, and the air guide ash blocking strip 2 comprises:
the heat-resistant wire netting 20 is bent into an angle shape, and the angle part faces to the direction far away from the side wall 11;
an expansion screw 21 which penetrates through the edge of the heat-resistant wire mesh 20 to fixedly connect the heat-resistant wire mesh 20 with the side wall 11;
and the fire-resistant layer 22 is formed by laying a fire-resistant material on the outer surface of the heat-resistant wire mesh 20, and the outer surface of the fire-resistant layer 22 is trapezoidal.
As shown in fig. 3, the garbage incinerator structure for slowing down coking of the side wall according to the embodiment is suitable for a garbage incinerator which is already constructed and shaped, during shutdown maintenance, a hole is formed in a refractory brick at a position corresponding to the side wall 11 by using a water mill, the heat-resistant wire mesh 20 is bent into an angular shape, the angular part faces a direction away from the side wall 11, the edge part faces the side wall 11, the expansion screw 21 penetrates through the edge part of the heat-resistant wire mesh 20, the heat-resistant wire mesh is fixedly connected to the side wall 11, then a refractory material is laid outside the heat-resistant wire mesh 20 and shaped to form a refractory layer 22, and the outer surface of the refractory layer 22 is in a trapezoidal structure.
Example 6
The garbage incinerator for slowing down coking of the side walls is further improved on the basis of the embodiments 4 and 5, and the included angle alpha between the top surface of the air guide ash blocking strip 2 and the side walls 11 is = 15-25 degrees.
Through the angle design of this embodiment, can effectively avoid leading the flying dust of wind shield ash strip 2 top surface, mars granule to pile up to avoid inducing the coking.
Example 7
The garbage incinerator for slowing down the coking of the side walls is further improved on the basis of the embodiment 6, and the distance D = 500-900 mm from the lowest point of the bottom surface of the air guide ash blocking strip 2 to the grate segment 10 below the air guide ash blocking strip.
In this embodiment, the distance between the corresponding plane of the upper bottom and the corresponding plane of the lower bottom of the wind guiding and dust blocking strip 2, i.e. the thickness H of the wind guiding and dust blocking strip 21= 200-400 mm, and the distance L from the highest point of the top surface to the lowest point of the bottom surface of the wind-guiding and ash-blocking strip 21= 600-800 mm, length L of the plane corresponding to the upper bottom of the wind-guiding dust-retaining strip 22= 40-60 mm, and the bottom surface and the side wall 11 form an included angle β = 65-85 °.
Through this embodiment apart from D's setting, can ensure that wind-guiding ash blocking strip 2 is higher than the rubbish bed of material of grate piece 10 top, and is close enough with the rubbish bed of material, when wind-guiding ash blocking strip 2 bottom surface produced the coking and when the coke breeze piece increases, can contact with the rubbish bed of material to crowd the coke breeze piece at rubbish bed of material forward motion in-process, prevent its further increase, possessed self-cleaning function.
Example 8
The garbage incinerator for slowing down the coking of the side walls of the embodiment is further improved on the basis of the embodiment 7, and the wind guide ash strips 2 are arranged above the second unit 12 and the third unit 13 of the incinerator in the furnace body 1.
In the incinerator inner structure of the garbage incinerator, garbage runs from the first unit of the incinerator to the subsequent unit and is incinerated, the garbage stockpile is full at the first unit of the incinerator, the gap between the grate segment 10 and the side wall 11 is blocked by garbage, therefore, the air channeling can not occur in the incineration process, the incinerator unit behind the third unit 13 of the incinerator is a burnout section, the air volume is small, the coking condition is not easy to occur, and therefore, the side wall 11 coking phenomenon can be effectively relieved only by arranging the air guide ash blocking strip 2 above the second unit 12 of the incinerator and the third unit 13 of the incinerator.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A garbage incinerator for slowing down coking of side walls comprises,
a furnace body;
it is characterized by also comprising:
the air guide ash blocking strip is a strip-shaped protruding structure formed on the side wall above the grate segment in the furnace body.
2. The garbage incinerator for slowing down coking of the side walls as claimed in claim 1, wherein: the cross section of the wind-guiding ash-blocking strip perpendicular to the side wall direction is a trapezoidal surface, the bottom of the trapezoidal surface is fixedly connected with the side wall, and the top is parallel to the side wall.
3. The garbage incinerator for slowing down coking of the side walls as claimed in claim 2, wherein: the length direction of the wind guide ash strip is parallel to the fire grate segment.
4. The garbage incinerator for slowing down coking of the side walls as claimed in claim 3, wherein: the wind guide plate ash strip is formed by building refractory bricks.
5. The garbage incinerator for slowing down coking of side walls according to claim 3, characterized in that said wind guiding ash strips comprise:
the heat-resistant wire netting is bent into an angle shape, and the angle part faces to the direction far away from the side wall;
the expansion screw penetrates through the edge part of the heat-resistant wire netting to fixedly connect the heat-resistant wire netting with the side wall;
the fireproof layer is formed by laying fireproof materials on the outer surface of the heat-resistant wire netting, and the outer surface of the fireproof layer is trapezoidal.
6. The garbage incinerator for slowing down the coking of the side walls according to claim 4 or 5, characterized in that: the included angle alpha =15~25 of the top surface of wind-guiding ash blocking strip and side wall.
7. The garbage incinerator for slowing down coking of side walls according to claim 6, characterized in that: and the distance D = 500-900 mm from the lowest point of the bottom surface of the air guide ash blocking strip to the grate segment below the air guide ash blocking strip.
8. The garbage incinerator for slowing down coking of the side walls as claimed in claim 1, wherein: the wind guide ash bar is arranged above the second incinerator unit and the third incinerator unit in the incinerator body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012823.4U CN215951422U (en) | 2021-08-25 | 2021-08-25 | Refuse incinerator capable of retarding coking of side wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012823.4U CN215951422U (en) | 2021-08-25 | 2021-08-25 | Refuse incinerator capable of retarding coking of side wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215951422U true CN215951422U (en) | 2022-03-04 |
Family
ID=80430288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122012823.4U Active CN215951422U (en) | 2021-08-25 | 2021-08-25 | Refuse incinerator capable of retarding coking of side wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215951422U (en) |
-
2021
- 2021-08-25 CN CN202122012823.4U patent/CN215951422U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102721067B (en) | Water-cooling reciprocating multistage hydraulic mechanical grate furnace | |
| CN102878563B (en) | Multi-drive high-pressure-loss fire grate type household garbage burning device | |
| CN101614400A (en) | A kind of fluidized selective deslagging device | |
| CN215951422U (en) | Refuse incinerator capable of retarding coking of side wall | |
| CN102235675A (en) | Open air distribution plate for circulating fluidized bed garbage incineration boiler | |
| RU2310123C1 (en) | Boiler | |
| RU58202U1 (en) | BOILER | |
| CN202884932U (en) | Multi-drive high-pressure-loss fire grate type household garbage incinerator | |
| CN201487967U (en) | Flashback type garbage pyrolysis gasification incinerator | |
| CN113776047B (en) | Device for preventing high-temperature corrosion of water-cooled wall of combustion boiler and boiler corrosion prevention method | |
| CN202675301U (en) | Water-cooling reciprocating multistage hydraulic-mechanical grate furnace | |
| CN210014391U (en) | Arrangement structure of four-corner tangential pulverized coal boiler combustion control belt | |
| CN209622815U (en) | A kind of fire grate segment and the garbage incinerator grates based on the fire grate segment | |
| CN209801496U (en) | Front and rear arch anti-coking system of combustion chamber of waste incineration boiler | |
| CN203336814U (en) | Horizontal hot water boiler | |
| CN219736008U (en) | Nickel flash smelting furnace water cooling structure | |
| CN219494076U (en) | Arrangement structure for reducing coking of boiler sanitary burning belt | |
| CN106016312A (en) | Ladder-like movable fire bar suitable for large-particle solid fuel | |
| CN104359112A (en) | High-temperature incinerator combustion hood air curtain protection system | |
| CN216431674U (en) | Hearth of SZS-fired natural gas steam boiler | |
| CN214426008U (en) | Be used for preventing waste incinerator grate coking structure | |
| CN215174986U (en) | Porous curtain type composite wear-resisting device | |
| CN110425544A (en) | A kind of novel 900t/d high heating value domestic waste incineration | |
| CN218763368U (en) | Coal feeding anti-abrasion device for return leg of circulating fluidized bed boiler | |
| CN218721520U (en) | Wear-resistant, low-wind-resistance and efficient air-cooling fire grate segment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |