CN108168309A - A kind of method of sinter continuous feeding into multiple upright cooling furnaces - Google Patents
A kind of method of sinter continuous feeding into multiple upright cooling furnaces Download PDFInfo
- Publication number
- CN108168309A CN108168309A CN201711405033.4A CN201711405033A CN108168309A CN 108168309 A CN108168309 A CN 108168309A CN 201711405033 A CN201711405033 A CN 201711405033A CN 108168309 A CN108168309 A CN 108168309A
- Authority
- CN
- China
- Prior art keywords
- sinter
- upright
- cooling
- mineral aggregate
- upright cooling
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/007—Cooling of charges therein
- F27D2009/0072—Cooling of charges therein the cooling medium being a gas
- F27D2009/0075—Cooling of charges therein the cooling medium being a gas in direct contact with the charge
Abstract
The present invention relates to a kind of methods of sinter continuous feeding into multiple upright cooling furnaces, heat sinter is transported to by mineral aggregate transporter in mineral aggregate buffering chamber, mineral aggregate buffering chamber bottom connects multiple upright cooling furnaces by multiple guide chutes being obliquely installed, according to the material position of sinter in each upright cooling furnace and cooling situation, Central Control Room sends out command signal, electric rotating plate valve is controlled to turn off or on by valve positioner alternately to feed into each upright cooling furnace, operating pressure in upright cooling furnace and in mineral aggregate buffering chamber is tiny structure, prevents flue gas from escaping；The present invention can realize the high-efficiency and continuous cooling of sinter；And feed is smooth, it is easy to operate.
Description
Technical field
It is continuous into multiple upright cooling furnaces the present invention relates to sinter cooling technology field more particularly to a kind of sinter
The method of feed.
Background technology
Sintering circuit energy consumption is huge, and second is occupied in steel and iron industry.Sintering mine sensible heat accounts for more than 40% overall heat consumption, such as
What becomes industry focus of attention using this portion of energy.Currently, the cooling of China's sinter and waste heat recovery are mainly cold using ring
Machine technology.From practice, this technology has a disadvantage that：1) because of non-uniform charging, cause waste heat parameter fluctuation big, jeopardize
Afterheat utilizing system safety；2) system air leakage problem is serious, still can not be from not catching up with although taking local water seal measure
It solves the problems, such as, causes thermal efficiency attenuation serious, and the leakage of flue dust inorganization is very big to environmental hazard.
The Chinese patent of Patent No. CN 205940170 discloses " a kind of double vertical sinter cooling furnaces of cooling chamber ", will
Cooling unit is divided into two.However, since it uses the single section that prestores, the section that will not prestore separates.It is uniform to solve only heat exchange
Sex chromosome mosaicism, there is no fundamentally solve continuous pan feeding and maintenance issue.Moreover, there is no negative pressure adjustings for section feeding device that prestores
Device causes flue dust easily to be revealed, and pollutes.
Invention content
The present invention provides a kind of method of sinter continuous feeding into multiple upright cooling furnaces, by sinter by leading
Material chute is assigned in different upright cooling furnaces, is cooled down so as to fulfill high-efficiency and continuous；And feed is smooth, it is easy to operate.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of method of sinter continuous feeding into multiple upright cooling furnaces, includes the following steps：
1) after the heat sinter that sintering machine comes out is handled after crushing and screening, mineral aggregate buffering chamber is transported to by mineral aggregate transporter
In, whole enclosed conveying is realized by transporter seal closure, prevents flue dust from leaking；Mineral aggregate buffering chamber bottom is slipped by multiple guides
Slot connects multiple upright cooling furnaces correspondingly, and guide chute is connected to form by straight section and oblique section, the other end connection of straight section
Mineral aggregate buffering chamber, the other end of oblique section connect the feed inlet of upright cooling furnace, and straight section top sets electric rotating plate valve, electric rotating plate
Valve is connected by valve positioner with Central Control Room；
2) command signal is sent out, passes through valve according to the material position of sinter in each upright cooling furnace and cooling situation, Central Control Room
Door controller control electric rotating plate valve is turned off or on alternately to feed into each upright cooling furnace；Only to it within the same time
In individually feed in a upright cooling furnace, stop charging after the material position in the upright cooling furnace reaches technological requirement, close
Close corresponding electric rotating plate valve；
3) it is upright that flue gas balance pipe, mineral aggregate caching are set between the recuperated gas outlet conduit of cooling furnace and mineral aggregate buffering chamber
Storehouse sets pressure gauge, and the pressure-regulating valve interlocked control on flue gas balance pipe, ensures in upright cooling furnace and mineral aggregate buffering chamber
Interior operating pressure is tiny structure, prevents flue gas from escaping；
4) the cycle cold air less than 80 DEG C is introduced in upright cooling furnace, abundant, uniformly cooling is carried out to sinter；It changes
Gas after heat is sent to heat transmission equipment by recuperated gas outlet conduit and exchanges heat, and realizes the recycling of heat；Heat sinter
After reaching technological temperature requirement after cooling, start discharge device and discharge sinter after cooling；Then it is again upright to this
It feeds in cooling furnace；
5) alternately, when a upright cooling furnace is overhauled, other upright cooling furnaces are normal for the maintenance of each upright cooling furnace
Charging, discharging.
Compared with prior art, the beneficial effects of the invention are as follows：
1) mineral aggregate buffering chamber reserves are big, can play good cushioning effect, are conducive to the organized distribution of material；
2) each guide chute is both provided with individual electric rotating plate valve, electric rotating plate valve by valve positioner with
Central Control Room connects, and situation is cooled down according to the material of upright cooling furnace, the opening and closing angle of remote controlled electric rotating plate valve and when
Between, realize controllable distribution and the continuous coo1ing of material；
3) other end of flue gas balance pipe is connected in the relatively low upright furnace outlet conduit of pressure, passes through gauge measurement
Pressure in mineral aggregate buffering chamber, and with pressure-regulating valve interlocked control, keep ensureing that mineral aggregate is defeated for tiny structure in mineral aggregate buffering chamber
Dust will not leak during sending.
Description of the drawings
Fig. 1 is a kind of principle signal of sinter of the present invention method of continuous feeding into multiple upright cooling furnaces
Figure.
In figure：1. 4. electric rotating plate valve of mineral aggregate transporter 2. transporter seal closure, 3. mineral aggregate buffering chamber, 5. guide chute 6.
10. flue gas balance pipe of upright 9. pressure-regulating valve of cooling furnace 7. valve positioner, 8. pressure gauge, 11. upright cooling furnace outlet
Road
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of method of sinter of the present invention continuous feeding into multiple upright cooling furnaces, including such as
Lower step：
1) after the heat sinter that sintering machine comes out is handled after crushing and screening, mineral aggregate buffering chamber 3 is transported to by mineral aggregate transporter 1
In, whole enclosed conveying is realized by transporter seal closure 2, prevents flue dust from leaking；3 bottom of mineral aggregate buffering chamber passes through multiple guides
Chute 5 connects multiple upright cooling furnaces 6 correspondingly, and guide chute 5 is connected to form by straight section and oblique section, the other end of straight section
Mineral aggregate buffering chamber 3 is connected, the other end of oblique section connects the feed inlet of upright cooling furnace 6, and straight section top sets electric rotating plate valve 4,
Electric rotating plate valve 4 is connected by valve positioner 7 with Central Control Room；
2) command signal is sent out, passes through valve according to the material position of sinter in 6 stoves of each upright cooling and cooling situation, Central Control Room
Door controller 7 controls electric rotating plate valve 4 to turn off or on and alternately feeds into each upright cooling furnace 6；Within the same time only
It individually feeds in a upright cooling furnace 6 thereto, stops dress after the material position in the upright cooling furnace 6 reaches technological requirement
Material, closes corresponding electric rotating plate valve 4；
3) flue gas balance pipe 10, mineral aggregate uprightly are set between the recuperated gas outlet conduit of cooling furnace 6 and mineral aggregate buffering chamber 3
Buffering chamber 3 sets pressure gauge 8, and 9 interlocked control of pressure-regulating valve on flue gas balance pipe 10, ensure in upright cooling furnace 6 and
3 operating pressure is tiny structure in mineral aggregate buffering chamber, prevents flue gas from escaping；
4) the cycle cold air less than 80 DEG C is introduced in upright cooling furnace 6, abundant, uniformly cooling is carried out to sinter；It changes
Gas after heat is sent to heat transmission equipment by recuperated gas outlet conduit and exchanges heat, and realizes the recycling of heat；Heat sinter
After reaching technological temperature requirement after cooling, start discharge device and discharge sinter after cooling；Then it is again upright to this
It feeds in cooling furnace 6；
5) alternately, when a upright cooling furnace 6 is overhauled, other upright cooling furnaces 6 are just for the maintenance of each upright cooling furnace 6
Often charging, discharging.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. the method for a kind of sinter continuous feeding into multiple upright cooling furnaces, which is characterized in that include the following steps：
1) it after the heat sinter that sintering machine comes out is handled after crushing and screening, is transported in mineral aggregate buffering chamber, led to by mineral aggregate transporter
It crosses transporter seal closure and realizes whole enclosed conveying, prevent flue dust from leaking；Mineral aggregate buffering chamber bottom is obliquely installed by multiple
Guide chute connects multiple upright cooling furnaces, and feed inlet one end of guide chute is respectively equipped with electric rotating plate valve；Electric rotating plate
Valve is connected by valve positioner with Central Control Room；
2) command signal is sent out, passes through valve control according to the material position of sinter in each upright cooling furnace and cooling situation, Central Control Room
Device control electric rotating plate valve processed is turned off or on alternately to feed into each upright cooling furnace；Only thereto one within the same time
It individually feeds in a upright cooling furnace, stops charging, closing pair after the material position in the upright cooling furnace reaches technological requirement
The electric rotating plate valve answered；
3) flue gas balance pipe is uprightly set between the recuperated gas outlet conduit of cooling furnace and mineral aggregate buffering chamber, mineral aggregate buffering chamber is set
Pressure-regulating valve interlocked control on pressure gauge, with flue gas balance pipe ensures in upright cooling furnace and in mineral aggregate buffering chamber
Operating pressure is tiny structure, prevents flue gas from escaping；
4) the cycle cold air less than 80 DEG C is introduced in upright cooling furnace, abundant, uniformly cooling is carried out to sinter；After heat exchange
Gas heat transmission equipment be sent to by recuperated gas outlet conduit exchange heat, realize the recycling of heat；Heat sinter reaches
After technological temperature requirement after cooling, start discharge device and discharge sinter after cooling；Then again to the upright cooling
It feeds in stove；
5) maintenance of each upright cooling furnace alternately, during a upright cooling furnace maintenance, other upright cooling furnaces normally feed,
Discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405033.4A CN108168309A (en) | 2017-12-22 | 2017-12-22 | A kind of method of sinter continuous feeding into multiple upright cooling furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711405033.4A CN108168309A (en) | 2017-12-22 | 2017-12-22 | A kind of method of sinter continuous feeding into multiple upright cooling furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108168309A true CN108168309A (en) | 2018-06-15 |
Family
ID=62523371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711405033.4A Pending CN108168309A (en) | 2017-12-22 | 2017-12-22 | A kind of method of sinter continuous feeding into multiple upright cooling furnaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108168309A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234349A (en) * | 2013-04-15 | 2013-08-07 | 中信重工机械股份有限公司 | Furnace type cooling and heat exchange device for sintered ores |
| CN104034174A (en) * | 2014-05-07 | 2014-09-10 | 中信重工机械股份有限公司 | Automatic control system for furnace cooling sinter waste heat power generation |
| CN104745207A (en) * | 2015-04-02 | 2015-07-01 | 山东理工大学 | Rotary kiln dry distillation powder semi coke dry quenching and afterheat utilizing device |
-
2017
- 2017-12-22 CN CN201711405033.4A patent/CN108168309A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234349A (en) * | 2013-04-15 | 2013-08-07 | 中信重工机械股份有限公司 | Furnace type cooling and heat exchange device for sintered ores |
| CN104034174A (en) * | 2014-05-07 | 2014-09-10 | 中信重工机械股份有限公司 | Automatic control system for furnace cooling sinter waste heat power generation |
| CN104745207A (en) * | 2015-04-02 | 2015-07-01 | 山东理工大学 | Rotary kiln dry distillation powder semi coke dry quenching and afterheat utilizing device |
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