CN205897850U - Ignition heat preservation stove of sintering machine - Google Patents
Ignition heat preservation stove of sintering machine Download PDFInfo
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- CN205897850U CN205897850U CN201521111016.6U CN201521111016U CN205897850U CN 205897850 U CN205897850 U CN 205897850U CN 201521111016 U CN201521111016 U CN 201521111016U CN 205897850 U CN205897850 U CN 205897850U
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Abstract
The utility model discloses an ignition heat preservation stove of sintering machine, the heat preservation stove of should igniteing be including section, the soaking zone of igniteing, its characterized in that: this ignition heat preservation stove still includes hot -blast sintering heat preservation cover, and wherein ignition section links to each other with the soaking zone, and hot -blast sintering heat preservation cover just links to each other with the soaking zone after being located the soaking zone. The utility model discloses fuel consumption is less for the ignition of ignition heat preservation stove, can effectively reduce the ignition energy consumption, simultaneously, the utility model discloses the ignition burner department of ignition heat preservation stove still is provided with ignite nozzle and automatic ignition device, can eliminate the potential safety hazard, ensures production operation safety.
Description
Technical field
This utility model belongs to agglomerating plant field and in particular to the ignition holding furnace of sintering machine.
Background technology
In iron and steel domain, sintering is important one procedure before ferrum, and sintering capital equipment is sintering machine and central cooler.
, all using double or multiple rows of burner to material direct-fire, ignition holding furnace burner hearth is relatively low for existing ignition holding furnace,
Ignition holding furnace overall length shorter it is impossible to form good igniting atmosphere, therefore ignition energy consumption is of a relatively high.In addition, burner
Igniting generally pass through fire rod or torch and manually light a fire, operation exists potential safety hazard.
In prior art, most steel mills adopt double-bevel ignition holding furnace, and small-sized private steel mill is using many individually
Seam ignition holding furnace.Existing ignition holding furnace all using double or multiple rows of burner to material direct-fire, and various igniting protect
Warm stove burner hearth is to reach satisfied ignition results and energy-conservation, and furnace height is generally in 400～600mm.Each section of ignition holding furnace it
Between do not set cooling water beam, soaking zone be not provided be incubated burner, ignition holding furnace length direction can not be formed well temperature ladder
Degree, ignition results have been short of, and comprehensive energy consumption is higher, and ignition holding furnace ignition energy consumption is in 4m3/ t about (with coke-stove gas be
Example).Because ignition holding furnace burner hearth is relatively low, refractory life is relatively short, and ignition holding furnace service life is not long, generally 3
～6 years.Ignition operation generally passes through fire rod or torch is manually lighted a fire, and operation exists potential safety hazard, falls behind current letter
Breathization society, does not more reach the target of industry 4.0.
Experience the phase in severe winter in current steel industry, Ge great steel mill compresses production cost, under the situation of energy-saving and emission-reduction, this practicality
Novel ignition holding furnace effectively can be greatly reduced ignition energy consumption, and guarantees production operation safety.
Utility model content
The purpose of this utility model seeks to solve that existing ignition holding furnace is relatively good in working condition, and sintering feed stone is equal
When even, good permeability, the higher problem of ignition energy consumption.With the contrast of existing ignition holding furnace, this utility model igniting insulation
Stove can control ignition energy consumption in 2m3/ t about () taking coke-stove gas as a example, reach advanced world standards.Meanwhile, eliminate safety
Produce hidden danger, extend ignition holding furnace service life.
According to embodiment of the present utility model, provide a kind of ignition holding furnace:
The ignition holding furnace of sintering machine, it includes light a fire section 1, soaking zone 2 and hot gas sintering thermal insulation cover 3, section 1 of wherein lighting a fire
It is connected with soaking zone 2, be connected after hot gas sintering thermal insulation cover 3 is located at soaking zone 2 and with soaking zone 2.Set on hot gas sintering thermal insulation cover 3
There is a row or multi-row hot-blast spray nozzle 8.
Described central cooler is the central cooler in including the system of sintering machine and central cooler (1).
In this utility model, this ignition holding furnace also includes the first cooling water beam 4 and the point being arranged on igniting section 1 entrance
The second cooling water beam 5 between fiery section 1 and soaking zone 2.
In this utility model, the furnace height of this ignition holding furnace is h, and wherein h is 650～1800mm, more preferably 720
～1600mm, preferably 800～1500mm, more preferably 900～1200mm.Here, furnace height h be defined as resistance to from ignition holding furnace
Fiery liner inwall is on trolley board of sintering machine along the height between (being generally material face).
In this utility model, igniting section 1 furnace roof of this ignition holding furnace is provided with the tilting of 2-5 row, preferably 3 or 4 row
Igniter burner 6.
Preferably, in the middle of the tilting igniter burner 6 of 2-5 row, preferably 3 or 4 row, operationally can open therein
One row or simultaneously open two rows or three rows therein or four rows or five rows.
In this utility model, soaking zone 2 furnace roof of this ignition holding furnace is provided with the insulation burner 7 of 1-3 row (as 2 rows).
In this utility model, the hot gas sintering thermal insulation cover 3 of this ignition holding furnace is divided into 1～20 section, preferably 2～15 sections,
More preferably 3～10 sections, such as 8 sections.
Preferably, the length of every section of hot gas sintering thermal insulation cover 3 is 1000～5000mm, preferably 2000～4000mm.
Preferably, every section of hot gas sintering thermal insulation cover 3 sets a thermal wind exhausting nozzle 8.
In this utility model, often arrange igniter burner 6 corresponding position in ignition holding furnace both sides, a pilot is respectively set
9.Pilot 9 is equipped with automatic ignition device.When ignition holding furnace needs igniting, by automatic ignition device by pilot point
Combustion, igniter burner is lighted by pilot again.That is, at the corresponding position of the igniter burner 6 with every row or position,
Ignition holding furnace both sides be respectively provided with a pilot 9 it is preferred that this two pilot 9 opposed in opposite directions and they two
The central axis of person is located at the described lower section of igniter burner 6 often arranged or underface.
Preferably, pilot 9 is provided with automatic ignition device 10 and automatic ignition device (10) is filled by automatic ignition
Put control chamber (11) to control.
Preferably, hot gas sintering thermal insulation cover 3 is provided with a row or multi-row hot-blast spray nozzle 8, these hot-blast spray nozzles 8 via
Hot blast feeding pipeline communication, to the hot blast fan housing of central cooler, is especially communicated to the fan housing of the high temperature section of central cooler.Preferably, ring
Cold high temperature section waste gas or central cooler backheat wind are extracted and are delivered to these hot-blast spray nozzles 8, carry to hot gas sintering thermal insulation cover 3
For the heat-insulating hot-air required for sintering.
In this utility model, described furnace height h refers to ignition holding furnace refractory lining inwall to sintering pallet hurdle
Along the height of (being generally material face) on plate.Igniting section furnace roof refers to the ignition holding furnace igniting uppermost part of section, that is,
Part away from ground.Soaking zone furnace roof refers to the uppermost part of ignition holding furnace soaking zone, i.e. farthest part from the ground.
In this utility model, hot gas sintering thermal insulation cover is arranged to corresponding length and section according to the needs of actual production
Number, every section sets a thermal wind exhausting nozzle, provides central cooler backheat wind for charge level, and the heat content brought into by hot blast is it is ensured that lower floor's material
Fully burn, in reduction, join carbon, reduce igniting comprehensive energy consumption.The cooling of setting between igniting section entrance, igniting section and soaking zone
Water beam, can effectively completely cut off thermal loss, to ensure each section of thermograde, the surface ignition effect having reached.And furnace height
Improve and be conducive to extending refractory life, this utility model ignition holding furnace can ensure that its service life more than 8 years.
In this utility model, the setting of igniting section three row's igniter burner can ensure that in sintering machine speed, high temperature
The length of ignition zone is it is ensured that ignition intensity and igniting uniformly, also can reduce by a row or that two row's burners cause is thermal zone shorter, high
Temperature area is concentrated, the phenomenon of surface easily superfusion.In actual production, can according to sintering machine speed and charge level situation close a row or
Two row's burners, to reach more energy efficient purpose.And the setting that soaking zone is incubated burner then can ensure that charge level temperature gradient, carry in good time
For institute's calorific requirement, promote lower floor's material igniting.This utility model pilot, automatic ignition device, automatic ignition device control
The setting of case, can eliminate safety in production hidden danger it is ensured that ignition security.
This utility model is related to a kind of sintering ignition insulation that can guarantee that ignition quality and effectively reduce ignition energy consumption
Stove.
Ignition holding furnace igniting section, soaking zone and hot gas sintering thermal insulation cover three combine can effectively provide igniting atmosphere,
Firing temperature gradient, is ensureing ignition quality simultaneously, reducing energy consumption.Igniting section temperature control, between 1050～1150 DEG C, is protected
Temperature section controls at 600 DEG C about, and hot gas sintering thermal insulation cover controls at 250 DEG C about, and the foundation in temperature field is conducive to sintering charge level
Igniting, contributes to sintered material and burns downwards, complete sintering process, compares that soaking zone cold wind is combustion-supporting and igniting that do not have thermal insulation cover
Stove is more energy efficient.
1) ignition holding furnace is made up of section of lighting a fire, soaking zone, hot gas sintering thermal insulation cover.Igniting section insulation igniting, by charge level
Light；Soaking zone suitably provides heat it is ensured that charge level temperature；Hot gas sintering thermal insulation cover provides central cooler backheat wind, by hot blast
The heat content brought into, it is ensured that lower floor's material fully burns, joins carbon in reduction, reduce igniting comprehensive energy consumption.
2) it is provided with cooling water beam between igniting section entrance, igniting section and soaking zone, with effective isolation thermal loss.Ensure each
Section thermograde, with the surface ignition effect having reached, reduces ignition energy consumption simultaneously.
3) ignition holding furnace furnace height, according to sintering machine size and fuel conditions, is designed to 800～1500mm.Suitable
Furnace height is very big on ignition results and ignition energy consumption impact, and burner hearth is too low, and superfusing easily occurs in sintering deposit charge level, and wastes energy
Source consumes；Burner hearth is too high, and surface strength not, certainly will increase fuel consumption；According to calculating and summarizing the experience, for different things
Material and fuel, this utility model ignition holding furnace furnace height scope is between 800～1500mm.Meanwhile, relatively existing igniting
Holding furnace, higher burner hearth is conducive to extending refractory life, and this utility model ignition holding furnace can ensure that ignition holding furnace
Physical life more than 8 years.According to different material property, different fuel, furnace height scope in 800-1500mm, to reach optimum
Ignition results, minimum energy resource consumption.
4) igniting section furnace roof arranges such as three row's tilting burners, soaking zone furnace roof setting such as row's insulation burner.Point
The setting of fiery section three row's burner can ensure that when sintering machine speed is very fast, and the length of high-temperature ignition band is it is ensured that ignition intensity and igniting
Uniformly, thermal zone shorter, the high-temperature area concentration that a row or two row's burners cause, the phenomenon of surface easily superfusion can also be reduced；?
In actual production, a row or two row's burners can be closed according to sintering machine speed and charge level situation, to reach more energy efficient purpose；Insulation
Section burner is to guarantee charge level temperature gradient, provides institute's calorific requirement in good time, promotes lower floor's material igniting.Prior art is commonly designed two
Row's burner, to reach the purpose of energy-conservation, but two row's burners are unstable in coal gas, during condition of production change (such as sintering machine speed adjustment,
Dispensing moisture change etc.) adaptability is slightly worse, frequent sintering machine edge ignition results are bad, or center charge level superfusion existing
As.The arrangement of three row's burners adjusts and is more convenient, and can effectively guarantee ignition quality.
5) after hot gas sintering thermal insulation cover is located at ignition holding furnace, formed by some sections, every section sets a thermal wind exhausting nozzle, for material
Face provides central cooler high temperature backheat wind.There is provided combustion-supporting hot blast for uniform to material, hot gas sintering thermal insulation cover be divided into some sections,
Every section by hot-blast spray nozzle, separately air feed, it is ensured that the abundant fuel of each layer of material, improves sintering deposit quality, saves the comprehensive energy of igniting
Consumption.Hot gas sintering thermal insulation cover is incorporated into as ignition holding furnace ingredient, thermograde can be effectively ensured, reach energy-saving
Purpose.
6) often arrange igniter burner corresponding position in ignition holding furnace both sides, a pilot be respectively set, pilot equipped with
Pilot, when ignition holding furnace needs igniting, is lighted by automatic ignition device by automatic ignition device, and pilot will again
Igniter burner is lighted.Automatic ignition device can ensure that the igniting success of pilot highly effective and safe, after pilot igniting success,
Due to pilot flame length and stable, flame location is located at below igniter burner quirk it can be ensured that the point of safes of igniter burner
Fire.
Compared with prior art, this utility model has the advantage that
1. energy consumption drops: this utility model can be greatly reduced ignition of sintering process unit consumption.Especially ignition success rate is high, vertical
To with transversely almost do not omit, point of ignition uniformly and guarantee in sintering process sinter bed same depth (or high
Degree) there is identical sintering degree, improve the quality of sintering deposit.
2. UTILIZATION OF VESIDUAL HEAT IN: adopt central cooler high temperature backheat wind to hot gas sintering thermal insulation cover to utilize waste heat, reduce sintering life
Produce comprehensive energy consumption.
3. safe operation: automatic ignition burner can ensure that ignition security, eliminates because the potential safety hazard of operational error presence.
Brief description
Fig. 1 is the schematic diagram of prior art ignition holding furnace.
Fig. 2 is the schematic diagram of this utility model ignition holding furnace.
Fig. 3 is the schematic diagram of this utility model ignition holding furnace igniting section.
Fig. 4 is the view in the a-a direction of ignition holding furnace igniting section of Fig. 3.
Fig. 5 is the pilot (9) of Fig. 4 and the b side view of automatic ignition device (10).
Reference: 1: igniting section；2: soaking zone；3: hot gas sintering thermal insulation cover；4: the first cooling water beams；5: the second coolings
Water beam；6: igniter burner；7: insulation burner；8: hot-blast spray nozzle；9 pilot；10: automatic ignition device；11: automatic ignition dress
Put control chamber；H: furnace height.
Specific embodiment
The ignition holding furnace of sintering machine, it includes light a fire section 1, soaking zone 2 and hot gas sintering thermal insulation cover 3, section 1 of wherein lighting a fire
It is connected with soaking zone 2, be connected after hot gas sintering thermal insulation cover 3 is located at soaking zone 2 and with soaking zone 2.Set on hot gas sintering thermal insulation cover 3
There is a row or multi-row hot-blast spray nozzle 8.
In this utility model, this ignition holding furnace also includes the first cooling water beam 4 and the point being arranged on igniting section 1 entrance
The second cooling water beam 5 between fiery section 1 and soaking zone 2.
In this utility model, the furnace height of this ignition holding furnace is h, and wherein h is 650～1800mm, more preferably 720
～1600mm, preferably 800～1500mm, more preferably 900～1200mm.
In this utility model, igniting section 1 furnace roof of this ignition holding furnace is provided with the tilting of 2-5 row, preferably 3 or 4 row
Igniter burner 6.
Preferably, the tilting igniter burner 6 of 2-5 row, preferably 3 or 4 row can be opened a row therein or beat simultaneously
Open two rows or three rows therein or four rows or five rows.
In this utility model, soaking zone 2 furnace roof of this ignition holding furnace is provided with the insulation burner 7 of 1-3 row (as 2 rows).
In this utility model, the hot gas sintering thermal insulation cover 3 of this ignition holding furnace is divided into 1～20 section, preferably 2～15 sections,
More preferably 3～10 sections.
Preferably, the length of every section of hot gas sintering thermal insulation cover 3 is 1000～5000mm, preferably 2000～4000mm.
Preferably, every section of hot gas sintering thermal insulation cover 3 sets a thermal wind exhausting nozzle 8.
In this utility model, in the corresponding position of the igniter burner (6) with every row, respectively set in ignition holding furnace both sides
There is a pilot (9) it is preferred that this two pilot (9) are opposed in opposite directions and the central axis position of both
Underface in the described igniter burner (6) often arranged.
Preferably, pilot 9 is provided with automatic ignition device 10 and automatic ignition device (10) is filled by automatic ignition
Put control chamber (11) to control.
Hot gas sintering thermal insulation cover 3 is provided with a row or multi-row hot-blast spray nozzle 8, and these hot-blast spray nozzles 8 are via hot blast feeding
Pipeline communication, to the hot blast fan housing of central cooler, is especially communicated to the fan housing of the high temperature section of central cooler.Central cooler high temperature section waste gas or
Central cooler backheat wind is extracted and is delivered to these hot-blast spray nozzles 8, required for being provided as sintering to hot gas sintering thermal insulation cover 3
Heat-insulating hot-air.
Embodiment 1
A kind of ignition holding furnace, including igniting section 1, soaking zone 2 and hot gas sintering thermal insulation cover 3, wherein igniting section 1 and insulation
Section 2 is connected, and is connected after hot gas sintering thermal insulation cover 3 is located at soaking zone 2 and with soaking zone 2.This ignition holding furnace also includes being arranged on
The second cooling water beam 5 between first cooling water beam 4 of igniting section 1 entrance and igniting section 1 and soaking zone 2.This ignition holding furnace
Furnace height h be 800mm.Igniting section 1 furnace roof is provided with three row's tilting igniter burners 6, and soaking zone 2 furnace roof is provided with row's insulation
Burner 7.The hot gas sintering thermal insulation cover 3 of this ignition holding furnace is divided into 2 sections, and every section of length is 4000mm, and every section is provided with one
Thermal wind exhausting nozzle 8.This thermal wind exhausting nozzle 8 is all communicated to the fan housing of the high temperature section of central cooler.Central cooler high temperature section waste gas or
Central cooler backheat wind is extracted and is delivered to these hot-blast spray nozzles 8, required for being provided as sintering to hot gas sintering thermal insulation cover 3
Heat-insulating hot-air.Often arrange at igniter burner 6 in ignition holding furnace both sides, a pilot 9 is respectively set, pilot 9 is provided with
Automatic ignition device 10 and automatic ignition device control chamber 11, wherein automatic ignition device control chamber 11 control automatic ignition device
10 igniting.
Embodiment 2
Repeat embodiment 1, simply the furnace height h of ignition holding furnace is 1500mm.
Embodiment 3
Repeat embodiment 1, simply in three row's igniter burners of igniting section 1 furnace roof, close the 3rd near igniting section entrance
Row.
Embodiment 3
Repeat embodiment 1, simply hot gas sintering thermal insulation cover is divided into 10 sections, every section of length is 2000mm.
Claims (29)
1. the ignition holding furnace of sintering machine, it include light a fire section (1), soaking zone (2) it is characterised in that: this ignition holding furnace is also
Including hot gas sintering thermal insulation cover (3), wherein igniting section (1) is connected with soaking zone (2), and hot gas sintering thermal insulation cover (3) is located at insulation
Section (2) is connected afterwards and with soaking zone (2), and hot gas sintering thermal insulation cover (3) is provided with a row or multi-row hot-blast spray nozzle (8).
2. ignition holding furnace according to claim 1 it is characterised in that: this ignition holding furnace also includes being arranged on igniting section
(1) first cooling water beam (4) of porch and the second cooling water beam (5) between igniting section (1) and soaking zone (2).
3. ignition holding furnace according to claim 1 and 2 it is characterised in that: the furnace height h of this ignition holding furnace, that is,
Height h along between as material face on ignition holding furnace refractory lining inwall and trolley board of sintering machine is 650～
1800mm.
4. ignition holding furnace according to claim 1 and 2 it is characterised in that: igniting section (1) furnace roof be provided with 2-5 row incline
Inclined igniter burner (6).
5. ignition holding furnace according to claim 4 it is characterised in that: igniting section (1) furnace roof be provided with 3 or 4 row's tiltings
Igniter burner (6).
6. ignition holding furnace according to claim 3 it is characterised in that: igniting section (1) furnace roof be provided with 2-5 row tilting
Igniter burner (6).
7. ignition holding furnace according to claim 6 it is characterised in that: igniting section (1) furnace roof be provided with 3 or 4 row's tiltings
Igniter burner (6).
8. ignition holding furnace according to claim 4 it is characterised in that: the tilting igniter burner (6) of described 2-5 row when
In, operationally open a row therein or open two rows or three rows therein or four rows or five rows simultaneously.
9. ignition holding furnace according to claim 6 it is characterised in that: the tilting igniter burner (6) of described 2-5 row when
In, operationally open a row therein or open two rows or three rows therein or four rows or five rows simultaneously.
10. the ignition holding furnace according to any one of claim 1,2,5-9 it is characterised in that: soaking zone (2) furnace roof sets
There is the insulation burner (7) of 1 row or 2 rows or 3 rows.
11. ignition holding furnaces according to claim 3 it is characterised in that: soaking zone (2) furnace roof is provided with 1 row or 2 rows or 3
The insulation burner (7) of row.
12. ignition holding furnaces according to claim 4 it is characterised in that: soaking zone (2) furnace roof is provided with 1 row or 2 rows or 3
The insulation burner (7) of row.
13. ignition holding furnaces according to any one of claim 1,2,5,6,7,8,9,11 or 12 it is characterised in that: heat
Wind sintered heat insulating cover (3) is divided into 1～20 section, and every segment length is 1000～5000mm.
14. ignition holding furnaces according to claim 13 it is characterised in that: hot gas sintering thermal insulation cover (3) is divided into 2～15
Section, every segment length is 2000～4000mm.
15. ignition holding furnaces according to claim 3 it is characterised in that: hot gas sintering thermal insulation cover (3) is divided into 1～20 section；
Every segment length is 1000～5000mm.
16. ignition holding furnaces according to claim 4 it is characterised in that: hot gas sintering thermal insulation cover (3) is divided into 1～20 section；
Every segment length is 1000～5000mm.
17. ignition holding furnaces according to claim 10 it is characterised in that: hot gas sintering thermal insulation cover (3) is divided into 1～20
Section；Every segment length is 1000～5000mm.
18. according to the arbitrary described ignition holding furnace of claim 15-17 it is characterised in that: hot gas sintering thermal insulation cover (3) is divided into
2～15 sections；Every segment length is 2000～4000mm.
19. ignition holding furnaces according to claim 13 it is characterised in that: every section of hot gas sintering thermal insulation cover (3) sets one
Thermal wind exhausting nozzle (8).
20. ignition holding furnaces according to any one of claim 15-17 it is characterised in that: hot gas sintering thermal insulation cover (3)
Every section set a thermal wind exhausting nozzle (8).
21. ignition holding furnaces according to claim 4 it is characterised in that: corresponding in the igniter burner (6) with every row
Position or position, ignition holding furnace both sides are respectively provided with a pilot (9).
22. ignition holding furnaces according to any one of claim 6,7,8,9,11,12,14-17 or 19, its feature exists
In: at the corresponding position of the igniter burner (6) with every row or position, ignition holding furnace both sides are respectively provided with a pilot
(9).
23. ignition holding furnaces according to claim 10 it is characterised in that: corresponding in the igniter burner (6) with every row
Position or position, ignition holding furnace both sides are respectively provided with a pilot (9).
24. ignition holding furnaces according to claim 13 it is characterised in that: corresponding in the igniter burner (6) with every row
Position or position, ignition holding furnace both sides are respectively provided with a pilot (9).
25. ignition holding furnaces according to claim 20 it is characterised in that: corresponding in the igniter burner (6) with every row
Position or position, ignition holding furnace both sides are respectively provided with a pilot (9).
26. according to the arbitrary described ignition holding furnace of claim 21 or 23-25 it is characterised in that: described two ignite burning
Mouth (9) is opposed in opposite directions and the central axis of both is located at the described lower section of igniter burner (6) often arranged or underface.
27. ignition holding furnaces according to claim 22 it is characterised in that: two described pilot (9) are right in opposite directions
Put and the central axis of both is located at the described lower section of igniter burner (6) often arranged or underface.
28. ignition holding furnaces according to any one of claim 21 or 23-25 it is characterised in that: on pilot (9)
It is provided with automatic ignition device (10) and automatic ignition device (10) is controlled by automatic ignition device control chamber (11).
29. ignition holding furnaces according to claim 22 it is characterised in that: pilot (9) be provided with automatic ignition dress
Put (10) and automatic ignition device (10) is controlled by automatic ignition device control chamber (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111016.6U CN205897850U (en) | 2015-12-29 | 2015-12-29 | Ignition heat preservation stove of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111016.6U CN205897850U (en) | 2015-12-29 | 2015-12-29 | Ignition heat preservation stove of sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205897850U true CN205897850U (en) | 2017-01-18 |
Family
ID=57764549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111016.6U Active CN205897850U (en) | 2015-12-29 | 2015-12-29 | Ignition heat preservation stove of sintering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205897850U (en) |
-
2015
- 2015-12-29 CN CN201521111016.6U patent/CN205897850U/en active Active
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