CN102051437B - Air-supplying device for revolving furnace - Google Patents
Air-supplying device for revolving furnace Download PDFInfo
- Publication number
- CN102051437B CN102051437B CN2010106165866A CN201010616586A CN102051437B CN 102051437 B CN102051437 B CN 102051437B CN 2010106165866 A CN2010106165866 A CN 2010106165866A CN 201010616586 A CN201010616586 A CN 201010616586A CN 102051437 B CN102051437 B CN 102051437B
- Authority
- CN
- China
- Prior art keywords
- converter
- valve
- pipeline
- fan
- blower fan
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
- Pipeline Systems (AREA)
Abstract
The invention discloses an air-supplying device for a revolving furnace, comprising at least one revolving furnace, at least one fan, at least one pipeline, at least one total pipe switch valve and a control unit, wherein the air inlet end of each revolving furnace is connected with a blow valve of the revolving furnace; the air outlet end of each fan is connected with an outlet valve of the fan, and the fan is used for supplying air to the corresponding revolving furnace; one end of each pipeline is connected with the blow valve of each revolving furnace, the other end of each pipeline is connected with the outlet valve of each fan, and the fans are connected with the revolving furnace through the pipelines in a one-to-one correspondence mode; the total pipe switch valves are arranged on the partial pipelines and positioned between the blow valve of each revolving furnace and the outlet valves of the fans; and the control unit is switched between the revolving furnace and the fan through controlling the on/off of the air discharging valve of the revolving furnace, the outlet valves of the fans and total pipe switch valves. According to the air-supplying device disclosed by the embodiment of the invention, switching is carried out between the fans and the revolving furnace through controlling the total pipe switch valves and the outlet valves of the fans in no need of closing the revolving furnace and the fans. Thus, the air-supplying device is convenient for operation and has the advantage of long service life.
Description
Technical field
The present invention relates to the nonferrous smelting technology, particularly a kind of air supply device for converter.
Background technology
Converter is a kind of rotary cylindric steel-making blast furnace, can be used for the metallurgical furnace of blowing steel or blowing sulfonium.Converter body is made with steel plate, and is cylindrical, and inner lining refractory, by the chemical reaction heat heating, does not need external heat source during blowing, is most important steelmaking equipment, also can be used for copper, nickel smelting.Due in refining process, converter produces high calorie, therefore needs blower fan to dry with cooling converter to it.Wherein blower fan can be used for ventilation and the air inducing of work boiler and industrial furnace.
Blower fan comprises to the operating mode of converter blowing: a Fans is dried to a converter, and perhaps two Fans are simultaneously to two converter blowings.In existing production technology, when needs change the corresponding relation of blower fan and converter, need to first close blower fan, again the corresponding converter of blower fan and other is communicated with, causes thus the switch of blower fan frequent, the work-ing life of having reduced blower fan, simultaneously frequent switching also can cause consuming electric power large, wastes energy.
Summary of the invention
The present invention is intended to solve at least one of above-mentioned technical problem that exists in prior art, has proposed a kind of air supply device for converter, and this air supply device can be controlled between converter and blower fan and switch, thereby makes the blower fan can be to the converter air feed of correspondence.
For achieving the above object, the present invention proposes a kind of air supply device for converter, comprise at least one converter, the air intake of described each converter is connected with the converter blow valve; At least one blower fan, the outlet air end of described each blower fan is connected with the fan outlet valve, and described blower fan is used for the described converter air feed to correspondence; At least one pipeline, an end of described pipeline is connected with described converter blow valve, and the other end is connected with described fan outlet valve, and described blower fan is connected with described converter correspondingly by described pipeline; At least one house steward's switching valve, described house steward's switching valve are arranged on the part pipeline and between described converter blow valve and described fan outlet valve; And control unit, described control unit switches between described converter and blower fan by the switching of controlling described converter blow valve, fan outlet valve and house steward's switching valve.
According to the air supply device of the embodiment of the present invention, do not need to close converter and blower fan, can switch between blower fan and converter by controlling house steward's switching valve and fan outlet valve, easy to operate, long service life.
In one embodiment of the invention, described converter blow valve, fan outlet valve and house steward's switching valve are motorized valve.
In one embodiment of the invention, the described converter blow valve of described control unit control, fan outlet valve and house steward's switching valve are automatic mode or manual mode.
In one embodiment of the invention, described converter comprises: the first converter, the air intake of described the first converter are connected with the first converter blow valve; The second converter, the air intake of described the second converter are connected with the second converter blow valve; With the 3rd converter, the air intake of described the 3rd converter is connected with the 3rd converter blow valve,
Described blower fan comprises: the first blower fan, the outlet air end of described the first blower fan are connected with the first fan outlet valve; The second blower fan, the outlet air end of described the second blower fan are connected with the second fan outlet valve, and described house steward's switching valve comprises first house steward's switching valve and second house steward's switching valve, and described first house steward's switching valve and second house steward's switching valve are arranged on described pipeline.
In one embodiment of the invention, described the first blower fan is communicated with described the first converter by the first pipeline, and an end of described the first pipeline is connected with described the first fan outlet valve, and the other end is connected with described the first converter blow valve; Described the first blower fan is communicated with described the second converter by the second pipeline, and an end of described the second pipeline is connected with described the first fan outlet valve, and the other end is connected with described the second converter blow valve, and described first house steward's switching valve is arranged on described the second pipeline; Described the first blower fan is communicated with described the 3rd converter by the 3rd pipeline, one end of described the 3rd pipeline is connected with described the first fan outlet valve, the other end is connected with described the 3rd converter blow valve, and described first house steward's switching valve and second house steward's switching valve are arranged on described the 3rd pipeline; Described the second blower fan is communicated with described the first converter by the 4th pipeline, one end of described the 4th pipeline is connected with described the second fan outlet valve, the other end is connected with described the first converter blow valve, and described first house steward's switching valve and second house steward's switching valve are arranged on described the 4th pipeline; Described the second blower fan is communicated with described the second converter by the 5th pipeline, and an end of described the 5th pipeline is connected with described the second fan outlet valve, and the other end is connected with described the second converter blow valve, and described second house steward's switching valve is arranged on described the 5th pipeline; Described the second blower fan is communicated with described the 3rd converter by the 6th pipeline, and an end of described the 6th pipeline is connected with described the second fan outlet valve, and the other end is connected with described the 3rd converter blow valve.
In one embodiment of the invention, in described the first pipeline, described the second pipeline, described the 3rd pipeline, described the 4th pipeline, described the 5th pipeline and described the 6th pipeline, any two pipelines do not intersect.
In one embodiment of the invention, described the first pipeline and the 5th pipeline are communicated with simultaneously, and described the first pipeline and the 6th pipeline are communicated with simultaneously, and described the second pipeline and the 6th pipeline are communicated with simultaneously.
In one embodiment of the invention, the described converter blow valve of described control unit control automatically adjusts according to operating mode and the converter angle of described converter.
In one embodiment of the invention, the described control unit described converter of control and blower fan carry out the undisturbed switching.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or by practice of the present invention, recognize.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the corresponding schematic diagram of the blower fan-converter according to the embodiment of the present invention; And
Fig. 2 is the schematic flow sheet according to the air feed control method of the embodiment of the present invention.
Embodiment
Below describe embodiments of the invention in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
According to the air supply device of the embodiment of the present invention, comprise at least one converter, wherein the air intake of each converter is connected with the converter blow valve; At least one blower fan, wherein the outlet air end of each blower fan is connected with the fan outlet valve, and blower fan can be to the converter air feed corresponding with it; At least one pipeline, wherein an end of pipeline is connected with the converter blow valve, and the other end is connected with the fan outlet valve, and blower fan can be connected with converter correspondingly by pipeline; At least one house steward's switching valve, wherein house steward's switching valve can be arranged on the part pipeline, and house steward's switching valve is between converter blow valve and fan outlet valve; And control unit, the switching that wherein control unit can be by controlling converter blow valve, fan outlet valve and house steward's switching valve is to switch between converter and blower fan.
In one embodiment of the invention, converter blow valve, fan outlet valve and house steward's switching valve can motorized valves.And the operational mode that control unit can be controlled above-mentioned converter blow valve, fan outlet valve and house steward's switching valve is automatic mode or manual mode.
According to the air supply device of the embodiment of the present invention, do not need to close converter and blower fan, can switch between blower fan and converter by controlling house steward's switching valve and fan outlet valve, easy to operate.
Below take two Fans, to three continuous air feeds of converter, the air supply device of the embodiment of the present invention is described as example.
As shown in Figure 1, blower fan comprises the first blower fan and the second blower fan, and wherein the outlet air end of the first blower fan is connected with the first fan outlet valve, and the outlet air end of the second blower fan is connected with the second fan outlet valve.
In one embodiment of the invention, the first fan outlet valve and the second fan outlet valve are motorized valve.
Converter comprises the first converter, the second converter and the 3rd converter, and wherein the air intake of the first converter is connected with the first converter blow valve, and the air intake of the second converter is connected with the second converter blow valve, and the air intake of the 3rd converter is connected with the 3rd converter blow valve.
In one embodiment of the invention, the first converter blow valve, the second converter blow valve and the 3rd converter blow valve all can be motorized valve.
House steward's switching valve comprises first house steward's switching valve second house steward's switching valve, and wherein first house steward's switching valve and second house steward's switching valve all can be arranged on pipeline.
When producing, the corresponding relation of blower fan and converter comprises one of following dual mode:
(1) one Fans is to a converter air feed;
(2) two Fans are simultaneously to two converter air feeds.
Thus, can judge between blower fan and converter and have 9 kinds of corresponding operating mode.Wherein, 9 kinds of operating mode comprise:
(1) first converter operation ←---the → the first fan operation
The first blower fan is communicated with the first converter by the first pipeline, thereby makes the first blower fan to the first converter air feed.Wherein, an end of the first pipeline is connected with the first fan outlet valve, and the other end is connected with the first converter blow valve.At this moment, control unit can be controlled the first fan outlet valve and open, and first house steward's switching valve cuts out, and second house steward's switching valve cuts out, and the second fan outlet valve cuts out, and the first converter blow valve is opened.
(2) second converter operations ←---the → the first fan operation
The first blower fan is communicated with the second converter by the second pipeline, thereby makes the first blower fan to the second converter air feed.Wherein an end of the second pipeline is connected with the first fan outlet valve, and the other end is connected with the second converter blow valve, and first house steward's switching valve is arranged on the second pipeline.At this moment, control unit can be controlled the first fan outlet valve and open, and first house steward's switching valve is opened, and second house steward's switching valve cuts out, and the second fan outlet valve cuts out, and the second converter blow valve is opened.
(3) the 3rd converter operations ←---the → the first fan operation
The first blower fan is communicated with the 3rd converter by the 3rd pipeline, thereby makes the first blower fan to the 3rd converter air feed.Wherein an end of the 3rd pipeline is connected with the first fan outlet valve, and the other end is connected with the 3rd converter blow valve, and first house steward's switching valve and second house steward's switching valve are arranged on the 3rd pipeline.At this moment, control unit can be controlled the first fan outlet valve and open, and first house steward's switching valve is opened, and second house steward's switching valve is opened, and the second fan outlet valve cuts out, and the 3rd converter blow valve is opened.
(4) first converter operations ←---the → the second fan operation
The second blower fan is communicated with the first converter by the 4th pipeline, thereby makes the second blower fan to the first converter air feed.Wherein an end of the 4th pipeline is connected with the second fan outlet valve, and the other end is connected with the first converter blow valve, and first house steward's switching valve and second house steward's switching valve are arranged on the 4th pipeline.At this moment, control unit can be controlled the first fan outlet valve and close, and first house steward's switching valve is opened, and second house steward's switching valve is opened, and the second fan outlet valve is opened, and the first converter blow valve is opened.
(5) second converter operations ←---the → the second fan operation
The second blower fan is communicated with the second converter by the 5th pipeline, thereby makes the second blower fan to the second converter air feed.Wherein an end of the 5th pipeline is connected with the second fan outlet valve, and the other end is connected with the second converter blow valve, and second house steward's switching valve is arranged on the 5th pipeline.At this moment, control unit can be controlled the first fan outlet valve and close, and first house steward's switching valve cuts out, and second house steward's switching valve is opened, and the second fan outlet valve is opened, and the second converter blow valve is opened.
(6) the 3rd converter operations ←---the → the second fan operation
The second blower fan is communicated with the 3rd converter by the 6th pipeline, thereby makes the second blower fan to the 3rd converter air feed.Wherein an end of the 6th pipeline is connected with the second fan outlet valve, and the other end is connected with the 3rd converter blow valve.At this moment, control unit can be controlled the first fan outlet valve and close, and first house steward's switching valve cuts out, and second house steward's switching valve cuts out, and the second fan outlet valve is opened, and the 3rd converter blow valve is opened.
(7) first converter operations ←---the → the first fan operation, the second converter operation ←---the → the second fan operation
Under this kind operating mode, the first pipeline and the 5th pipeline are communicated with simultaneously, thereby make the first blower fan to the first converter air feed, and the second blower fan is to the second converter air feed simultaneously.At this moment, the first fan outlet valve is opened, and first house steward's switching valve cuts out, and control unit can be controlled second house steward's switching valve and open, and the second fan outlet valve is opened, and the first converter blow valve and the second converter blow valve are all opened.
(8) first converter operations ←---the → the first fan operation, the 3rd converter operation ←---the → the second fan operation
Under this kind operating mode, the first pipeline and the 6th pipeline are communicated with simultaneously, thereby make the first blower fan to the first converter air feed, and the second blower fan is to the 3rd converter air feed simultaneously.At this moment, control unit can be controlled the first fan outlet valve and open, and first house steward's switching valve cuts out, and second house steward's switching valve cuts out, and the second fan outlet valve is opened, and the first converter blow valve and the 3rd converter blow valve are all opened.
(9) second converter operations ←---the → the first fan operation, the 3rd converter operation ←---the → the second fan operation
Under this kind operating mode, the second pipeline and the 6th pipeline are communicated with simultaneously, thereby make the first blower fan to the second converter air feed, and the second blower fan is to the 3rd converter air feed simultaneously.At this moment, control unit can be controlled the first fan outlet valve and open, and first house steward's switching valve is opened, and second house steward's switching valve cuts out, and the second fan outlet valve is opened, and the second converter blow valve and the 3rd converter blow valve are all opened.
The operating mode of above-mentioned 9 kinds of blower fan-converters can be by as shown in table 1 below, as shown in table 1, and it is 1 that equipment is chosen, and not choosing is 0.
Table 1
In one embodiment of the invention, in the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the 5th pipeline and the 6th pipeline, any two pipelines cannot intersect.
As shown in Figure 2, blower fan and converter are switched, and comprise the steps:
S101: operating mode is set, chooses working fan and work converter according to operating mode in converter and blower fan;
S102: the air feed path between working fan and work converter is set;
S103: according to the air feed path, control the fan outlet valve of working fan and the action of the house steward's switching valve on the air feed path; And
S104: working fan is to described converter air feed.
The idiographic flow of blower fan and converter switching is described below in conjunction with specific embodiment
At first according to the blower fan of selecting in advance work and converter (choose under a kind of operating mode in table 1 be 1 equipment), control unit is chosen according to corresponding pipeline, be the air feed path, control simultaneously house steward's switching valve and the fan outlet snorting valve moves accordingly.
After the operating mode selection was complete, the fan outlet valve of the converter blow valve of choosing, oxygen repid cut-off valve, house steward's switching valve and blower fan all was set to automatic mode.Wherein, converter blow valve, oxygen repid cut-off valve and fan outlet valve are motorized valve.
At this moment, blower fan and converter just enter the preparation work state, in case converter starts operation, fan outlet valve and oxygen quick exhaust valve will be regulated automatically according to converter operator scheme and body of heater angle, realize that converter normally blows, normal blowing-out, the automatic control of accident turndown blowing-out.
When needs reselect blower fan-converter corresponding relation, need to reset.At this moment, the converter blow valve of before choosing, oxygen repid cut-off valve and fan outlet valve all are set to manual mode.When need to be in the situation that when not affecting converter of a Fans blowing and increasing another Fans and another and bessemerize, namely operating mode be two Fans during to two converter air feeds, need to increase new blower fan-converter corresponding relation.The fan outlet valve of the converter blow valve of choosing, oxygen repid cut-off valve and blower fan is automatic mode.
For avoiding many people repetitive operation, blower fan-converter corresponding relation switching panel can use on two computers.
The control unit of the embodiment of the present invention can also be realized the undisturbed switching of blower fan-converter associative mode aborning.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (5)
1. an air supply device that is used for converter, is characterized in that, comprising:
At least one converter, the air intake of described each converter is connected with the converter blow valve, and wherein said converter comprises the first converter, and the air intake of described the first converter is connected with the first converter blow valve; The second converter, the air intake of described the second converter are connected with the second converter blow valve; The 3rd converter, the air intake of described the 3rd converter are connected with the 3rd converter blow valve;
At least one blower fan, the outlet air end of described each blower fan is connected with the fan outlet valve, and described blower fan is used for the described converter air feed to correspondence, and wherein, described blower fan comprises: the first blower fan, the outlet air end of described the first blower fan are connected with the first fan outlet valve; The second blower fan, the outlet air end of described the second blower fan are connected with the second fan outlet valve;
At least one pipeline, an end of described pipeline is connected with described converter blow valve, and the other end is connected with described fan outlet valve, and described blower fan is connected with described converter correspondingly by described pipeline;
At least one house steward's switching valve, described house steward's switching valve is arranged on the part pipeline and between described converter blow valve and described fan outlet valve, described house steward's switching valve comprises first house steward's switching valve and second house steward's switching valve, described first house steward's switching valve and second house steward's switching valve are arranged on described pipeline, wherein, described the first blower fan is communicated with described the first converter by the first pipeline, one end of described the first pipeline is connected with described the first fan outlet valve, and the other end is connected with described the first converter blow valve; Described the first blower fan is communicated with described the second converter by the second pipeline, and an end of described the second pipeline is connected with described the first fan outlet valve, and the other end is connected with described the second converter blow valve, and described first house steward's switching valve is arranged on described the second pipeline; Described the first blower fan is communicated with described the 3rd converter by the 3rd pipeline, one end of described the 3rd pipeline is connected with described the first fan outlet valve, the other end is connected with described the 3rd converter blow valve, and described first house steward's switching valve and second house steward's switching valve are arranged on described the 3rd pipeline; Described the second blower fan is communicated with described the first converter by the 4th pipeline, one end of described the 4th pipeline is connected with described the second fan outlet valve, the other end is connected with described the first converter blow valve, and described first house steward's switching valve and second house steward's switching valve are arranged on described the 4th pipeline; Described the second blower fan is communicated with described the second converter by the 5th pipeline, and an end of described the 5th pipeline is connected with described the second fan outlet valve, and the other end is connected with described the second converter blow valve, and described second house steward's switching valve is arranged on described the 5th pipeline; Described the second blower fan is communicated with described the 3rd converter by the 6th pipeline, one end of described the 6th pipeline is connected with described the second fan outlet valve, the other end is connected with described the 3rd converter blow valve, described the first pipeline and the 5th pipeline are communicated with simultaneously, described the first pipeline and the 6th pipeline are communicated with simultaneously, and described the second pipeline and the 6th pipeline are communicated with simultaneously; And
Control unit, described control unit switches between described converter and blower fan by the switching of controlling described converter blow valve, fan outlet valve and house steward's switching valve, wherein, described control unit is according to described blower fan and the described converter of the work of selecting in advance, choose corresponding pipeline, control simultaneously described converter blow valve, described fan outlet valve and described house steward's switching valve and move accordingly.
2. the air supply device for converter as claimed in claim 1, is characterized in that, described converter blow valve, fan outlet valve and house steward's switching valve are motorized valve.
3. the air supply device for converter as claimed in claim 2, is characterized in that, it is automatic mode or manual mode that described control unit is controlled described converter blow valve, fan outlet valve and house steward's switching valve.
4. the air supply device for converter as claimed in claim 1, is characterized in that, described control unit is controlled described converter blow valve and automatically adjusted according to operating mode and the converter angle of described converter.
5. the air supply device for converter as claimed in claim 1, is characterized in that, described control unit controls described converter and blower fan carries out the undisturbed switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106165866A CN102051437B (en) | 2010-12-30 | 2010-12-30 | Air-supplying device for revolving furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106165866A CN102051437B (en) | 2010-12-30 | 2010-12-30 | Air-supplying device for revolving furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102051437A CN102051437A (en) | 2011-05-11 |
| CN102051437B true CN102051437B (en) | 2013-11-13 |
Family
ID=43956234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106165866A Active CN102051437B (en) | 2010-12-30 | 2010-12-30 | Air-supplying device for revolving furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102051437B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561588B (en) * | 2014-11-03 | 2016-07-13 | 江西铜业股份有限公司 | The method that blowing-out operates is sent in a kind of PS of realization converter automatically |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1837377A (en) * | 2006-04-17 | 2006-09-27 | 燕永存 | Slag-back prevention and parallel aeration process for blast furnace |
| CN2833667Y (en) * | 2005-07-12 | 2006-11-01 | 马鞍山伏斯特科技发展有限公司 | Automatic blast-furnace tuyere slag control apparatus |
| CN201046970Y (en) * | 2007-04-13 | 2008-04-16 | 马鞍山伏斯特科技发展有限公司 | Tuyere slag-filling preventing automatic control device for blast furnaces |
| CN202011887U (en) * | 2010-12-30 | 2011-10-19 | 中国恩菲工程技术有限公司 | Air supply device for converter |
-
2010
- 2010-12-30 CN CN2010106165866A patent/CN102051437B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833667Y (en) * | 2005-07-12 | 2006-11-01 | 马鞍山伏斯特科技发展有限公司 | Automatic blast-furnace tuyere slag control apparatus |
| CN1837377A (en) * | 2006-04-17 | 2006-09-27 | 燕永存 | Slag-back prevention and parallel aeration process for blast furnace |
| CN201046970Y (en) * | 2007-04-13 | 2008-04-16 | 马鞍山伏斯特科技发展有限公司 | Tuyere slag-filling preventing automatic control device for blast furnaces |
| CN202011887U (en) * | 2010-12-30 | 2011-10-19 | 中国恩菲工程技术有限公司 | Air supply device for converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102051437A (en) | 2011-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200941000Y (en) | Heat-retaining and burning car-type heating furnace | |
| CN104390459A (en) | Whole honeycomb thermal storage type simple nozzle symmetrically-burning type gas kiln | |
| CN101344357A (en) | Rotary kiln and technique for processing composition brass or block shaped raw copper | |
| US7666345B2 (en) | Method and apparatus for melting metal | |
| CA2663761A1 (en) | Method for operating a melt-metallurgic furnace, and furnace | |
| CN102051437B (en) | Air-supplying device for revolving furnace | |
| CN202011887U (en) | Air supply device for converter | |
| CN201170692Y (en) | Preheating furnace for mold | |
| CN109487024B (en) | Blast furnace gas and main air pipe net system | |
| CN102174665B (en) | A kind of air feed control method for converter | |
| CN201155906Y (en) | Gas drying system for plaster board | |
| CN105739556B (en) | A kind of the fluctuation pressurizing control system and method for building curtain wall detection | |
| CN201155919Y (en) | Cement rotary kiln using coal gas as fuel | |
| CN204494781U (en) | One exempts from automatically controlled hot-blast stove on duty | |
| CN202599129U (en) | Kiln head waste gas recycling device for cement production | |
| CN114350867A (en) | Blast furnace operation system and combustion fan switching method | |
| CN103672870A (en) | Combustion device for heating furnace and heating furnace with combustion device | |
| CN207437916U (en) | A kind of steam autocontrol valve for semi-coke raw material | |
| CN207330376U (en) | Furnace of calcium carbide uses the control system of blowing oxygen | |
| CN211739898U (en) | Energy-saving smelting furnace | |
| CN201995156U (en) | Multifunctional microwave device | |
| CN209778747U (en) | Straw pyrolysis carbonization system device | |
| CN105627358A (en) | Intelligent control system for kiln | |
| CN104279576A (en) | Pure-oxygen combustion system | |
| CN219453929U (en) | Low-nitrogen energy-saving heat accumulating furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |