CN215480527U - Temperature adjusting system for cooling part of glass kiln - Google Patents
Temperature adjusting system for cooling part of glass kiln Download PDFInfo
- Publication number
- CN215480527U CN215480527U CN202023327380.XU CN202023327380U CN215480527U CN 215480527 U CN215480527 U CN 215480527U CN 202023327380 U CN202023327380 U CN 202023327380U CN 215480527 U CN215480527 U CN 215480527U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- air
- combustion
- pipe
- glass kiln
- 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
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a temperature regulating system for a cooling part of a glass kiln, which comprises: a glass kiln body; the natural gas burner is arranged on the cooling part of the glass kiln body; the natural gas main pipe is filled with natural gas; the natural gas branch pipes are connected with the natural gas main pipe and are connected with the natural gas burner; a ventilator; the ventilation pipe is connected with the ventilator; the ventilation pipe is connected with the combustion-supporting air main pipe; the combustion-supporting air branch pipe is connected with the combustion-supporting air main pipe and is connected with the natural gas burner; and the dilution air system is characterized in that the dilution air input end is connected with a combustion-supporting air branch pipe, and the dilution air output end is connected with the glass kiln body. By applying the utility model, the combustion-supporting air of the natural gas combustor and the cooling air of each dilution air nozzle can be supplied simultaneously or independently; the system has the characteristics of high integration level, space saving and easy realization.
Description
Technical Field
The utility model relates to the technical field of float glass manufacturing, in particular to a temperature regulating system for a cooling part of a glass kiln.
Background
In the glass production process, the cooling part of the glass melting furnace bears the responsibility of providing high-quality molten glass for a forming section, and the space temperature above the glass liquid level of the cooling part greatly influences the final quality of the glass. In the prior patents, there are two methods for temperature adjustment: when the temperature needs to be reduced, the fan supplies air through the dilution air system, and cooling air is introduced into the cooling part to achieve the purpose of reducing the temperature; when the temperature needs to be raised, the glass metal in the cooling part is heated by the cooling part heating system. Generally, each combustor of the cooling part heating system corresponds to a set of independent natural gas control valve group and an independent combustion-supporting air system, and a plurality of independent cooling part heating systems are generally needed in the cooling part of the glass melting furnace. The dilution air system and the cooling part heating system are two sets of independent systems, and each system needs to be provided with an independent fan, so that the problems of low equipment utilization rate, repeated investment construction, serious space occupation and the like exist.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to solve the above problems, the present invention provides a temperature adjusting system for a cooling part of a glass kiln, comprising:
a glass kiln body;
at least one natural gas burner, wherein each natural gas burner is arranged on the cooling part of the glass kiln body;
the natural gas main pipe is connected with a natural gas inlet pipe through a pipeline;
one end of each natural gas branch pipe is connected with the other end of the natural gas main pipe, and the other end of each natural gas branch pipe is connected with one natural gas burner;
at least one ventilator;
one end of each ventilation pipe is connected with the output end of the ventilator;
the other end of each ventilation pipe is connected with one end of the combustion-supporting air main pipe;
one end of each combustion-supporting air branch pipe is connected with the other end of the combustion-supporting air main pipe, and the other end of each combustion-supporting air branch pipe is connected with one natural gas burner;
the dilution air system is provided with at least one dilution air input end and at least one dilution air output end, each dilution air input end is connected with one combustion air branch pipe, and each dilution air output end is connected with the glass kiln body.
In another preferred embodiment, at least one heating nozzle brick is arranged on the glass kiln body, and each natural gas burner is arranged on one heating nozzle brick; the glass kiln body is at least provided with a diluted air nozzle brick, and each diluted air output end is installed on one diluted air nozzle brick.
In another preferred embodiment, each ventilator is a centrifugal ventilator with variable frequency regulation, each ventilation tube is provided with an electric multi-blade valve, and each combustion air main pipe is provided with an air main pipe flowmeter.
In another preferred embodiment, each of the combustion supporting air branch pipes is provided with, from one end to the other end: the combustion-supporting air flow meter, the first butterfly valve, the fourth pressure meter and the two first joints, and the combustion-supporting air branch pipe between the two first joints is made of metal hoses.
In another preferred embodiment, the natural gas main is provided with: the natural gas pipeline comprises a first pressure gauge, a first ball valve, a natural gas filter, a natural gas cut-off valve, a natural gas regulating valve, a natural gas flowmeter, a second ball valve and a second pressure gauge.
In another preferred embodiment, each of the natural gas branch pipes is provided with, from one end to the other end: the third ball valve, the one-way valve, the third pressure gauge and the two second connectors, and the natural gas branch pipe between the two second connectors is made of metal hoses.
In another preferred embodiment, the dilution air system comprises:
one end of each dilution air pipe is connected with one combustion air branch pipe;
diluting the tuyere, each dilute the input of tuyere all with one the other end of diluting the tuber pipe is connected, each dilute the output of tuyere all with this body coupling of glass kiln.
In another preferred embodiment, a dilution air flow meter, a second butterfly valve and a fifth pressure gauge are sequentially arranged from one end of each dilution air pipe to the other end of each dilution air pipe.
In another preferred embodiment, the axes of the air holes of the heating nozzle bricks are arranged along the horizontal direction, the axes of the air holes of the diluted air nozzle bricks are arranged obliquely and upwards with the horizontal direction, and the included angle between the axes of the air holes of the diluted air nozzle bricks and the horizontal direction is 8-15 degrees.
In another preferred embodiment, the method further comprises: and an external DCS system.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following positive effects: by applying the utility model, the combustion-supporting air of the natural gas combustor can be independently supplied, the cooling air of each dilution air nozzle can be independently supplied, and the combustion-supporting air of the natural gas combustor and the cooling air of each dilution air nozzle can be simultaneously supplied; in other words, the utility model can realize that the cooling part of the glass melting furnace operates the heating system of the cooling part independently or operates the dilution air system independently or operates the heating system of the cooling part and the dilution air system simultaneously; the flowmeter, the pressure gauge and the valve body are in communication connection with the DCS system; the utility model has the characteristics of high integration level, space saving and easy realization.
Drawings
FIG. 1 is a first schematic diagram of a tempering system for a cooling section of a glass furnace according to the present invention;
FIG. 2 is a second schematic diagram of a tempering system for a cooling section of a glass kiln according to the present invention.
In the drawings:
1. a glass kiln body; 2. a natural gas burner; 3. a natural gas main; 4. a natural gas branch pipe; 5. A ventilator; 51. a vent pipe; 52. a combustion-supporting air main pipe; 53. a combustion-supporting air branch pipe; 6. a dilution air system; 11. heating the nozzle brick; 12. a weak wind nozzle brick; 511. an electrically operated multi-leaf valve; 521. a main air duct flow meter; 531. a combustion-supporting air flow meter; 532. a first butterfly valve; 533. a fourth pressure gauge; 534. a first joint; 31. a first pressure gauge; 32. a first ball valve; 33. a natural gas filter; 34. a natural gas shut-off valve; 35. a natural gas regulating valve; 36. a natural gas flow meter; 37. a second ball valve; 38. a second pressure gauge; 41. a third ball valve; 42. a one-way valve; 43. a third pressure gauge; 44. a second joint; 61. diluting the air pipe; 62. a dilution tuyere; 63. a dilution air flow meter; 64. a second butterfly valve; 65. a fifth pressure gauge; 7. DCS systems.
Detailed Description
The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
As shown in fig. 1 and 2, a preferred embodiment of a tempering system for a cooling section of a glass furnace is characterized by comprising: a glass kiln body 1; at least one natural gas burner 2, wherein each natural gas burner 2 is arranged on the cooling part of the glass kiln body 1; a natural gas main pipe 3, wherein natural gas is introduced into one end of the natural gas main pipe 3; the natural gas branch pipes 4 are arranged, one end of each natural gas branch pipe 4 is connected with the other end of the natural gas main pipe 3, and the other end of each natural gas branch pipe 4 is connected with a natural gas burner 2; at least one ventilator 5; at least one ventilation pipe 51, wherein one end of each ventilation pipe 51 is connected with the output end of a ventilation fan 5; a combustion air main pipe 52, wherein the other end of each vent pipe 51 is connected with one end of the combustion air main pipe 52; one end of each combustion-supporting air branch pipe 53 is connected with the other end of the combustion-supporting air main pipe 52, and the other end of each combustion-supporting air branch pipe 53 is connected with a natural gas burner 2; and the dilution air system 6 is provided with at least one dilution air input end and at least one dilution air output end, each dilution air input end is connected with a combustion air branch pipe 53, and each dilution air output end is connected with the glass kiln body 1. Further, with the help of the dilution air system 6, the combustion air of the natural gas burner 2 can be supplied separately through the combustion air branch pipe 53, the cooling air of each dilution air nozzle 62 can be supplied separately, and the combustion air of the natural gas burner 2 and the cooling air of each dilution air nozzle 62 can be supplied simultaneously; the natural gas combustor 2 is used for introducing natural gas and combustion-supporting air into the glass kiln body 1 for combustion; in another preferred embodiment, the input end of the lean air system 6 is directly connected to the other end of the combustion air main pipe 52, so that the input end of the lean air system 6, i.e. the dilution air pipe 61, is arranged in parallel with the other combustion air branch pipes 53.
Further, as a preferred embodiment, a natural gas supply device and a corresponding natural gas pipeline are connected to one end of the natural gas main 3.
Further, as a preferred embodiment, the natural gas burner 2 is provided with a natural gas inlet for connecting with the natural gas branch pipe 4 and a combustion air inlet for connecting with the combustion air branch pipe 53.
Further, as a preferred embodiment, the glass kiln body 1 is provided with at least one heating nozzle brick 11, and each natural gas burner is installed on one heating nozzle brick 11; the glass kiln body 1 is at least provided with a diluted air nozzle brick 12, and each diluted air output end is arranged on one diluted air nozzle brick.
Further, as a preferred embodiment, each ventilator 5 is a centrifugal ventilator 5 with variable frequency regulation, each ventilation pipe 51 is provided with an electric multi-blade valve 511, and each combustion air main pipe 52 is provided with a main pipe flow meter 521. Further, the ventilator 5 can change the air volume through variable frequency speed regulation to meet the requirement of supplying a certain amount of combustion-supporting air independently, or meet the requirement of supplying a certain amount of cooling air for each dilution air nozzle 62 independently, and meet the requirement of supplying a certain amount of combustion-supporting air and the cooling air for each dilution air nozzle 62 simultaneously; and an electric multi-leaf valve 511 is provided at the outlet end of the ventilator 5 to perform a cut-off or open operation on the ventilation pipe 51.
Further, as a preferred embodiment, each of the combustion air branch pipes 53 is provided with, from one end to the other end: the combustion-supporting air flow meter 531, the first butterfly valve 532, the fourth pressure gauge 533 and the two first joints 534, and the combustion-supporting air branch pipe 53 between the two first joints 534 adopts a metal hose. Further, the valve group structure formed by the combustion-supporting air flow meter 531, the first butterfly valve 532 and the fourth pressure gauge 533 on the combustion-supporting air branch pipe 53 enables the supplied combustion-supporting air volume to be matched with the natural gas volume supplied by the natural gas branch pipe 4 before the burner.
Further, as a preferred embodiment, the natural gas main 3 has, from one end to the other end, in sequence: the natural gas control device comprises a first pressure gauge 31, a first ball valve 32, a natural gas filter 33, a natural gas shut-off valve 34, a natural gas regulating valve 35, a natural gas flowmeter 36, a second ball valve 37 and a second pressure gauge 38.
Further, as a preferred embodiment, each natural gas branch pipe 4 is provided with, from one end to the other end: a third ball valve 41, a one-way valve 42, a third pressure gauge 43 and two second connectors 44, and a metal hose is adopted as the natural gas branch pipe 4 between the two second connectors 44.
Further, as a preferred embodiment, the dilution air system 6 includes: at least one dilution air pipe 61, wherein one end of each dilution air pipe 61 is connected with a combustion air branch pipe 53; dilution tuyere 62, the input of each dilution tuyere 62 all is connected with the other end of a dilution air pipe, and the output of each dilution tuyere 62 all is connected with glass kiln body 1. Further, dilution air nozzles 62 are preferably disposed in the air holes of respective weak air burner blocks, and the weak air burner blocks are insertedly mounted to the cooling section breast wall of the glass kiln. Further, the dilution air duct 61 is used for blowing dilution air into the cooling part of the glass melting furnace body to reduce the temperature of the glass liquid.
Further, as a preferred embodiment, a dilution air flow meter 63, a second butterfly valve 64, and a fifth pressure gauge 65 are sequentially disposed from one end to the other end of each dilution air pipe 61.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the utility model, the axes of the air holes of the heating nozzle brick 11 are arranged along the horizontal direction, the axes of the air holes of the dilute air nozzle brick 12 are arranged obliquely and upwards with the horizontal direction, and the included angle between the axes of the air holes of the dilute air nozzle brick 12 and the horizontal direction is 8-15 degrees. Further, in other words, the end of the dilution air nozzle 62 extending into the diluted air nozzle brick 12 is turned up.
In a further embodiment of the present invention, the method further comprises: an external DCS system 7. Further, the first pressure gauge 31, the first ball valve 32, the natural gas cut-off valve 34, the natural gas regulating valve 35, the natural gas flowmeter 36, the second ball valve 37, the second pressure gauge 38, the third ball valve 41, the one-way valve 42, the third pressure gauge 43, the air main pipe flowmeter 521, the combustion-supporting air flowmeter 531, the first butterfly valve 532, the fourth pressure gauge 533, the dilution air flowmeter 63, the second butterfly valve 64 and the fifth pressure gauge 65 are all in communication connection with the DCS system 7, so that the whole temperature regulating system for the cooling part of the glass kiln can be reasonably regulated.
In a further embodiment of the utility model, the rear end of a natural gas main pipe 3 is connected with two natural gas branch pipes 4 which are respectively connected with two natural gas burners 2, and two sides of a glass kiln body 1 are respectively embedded with a corresponding heating nozzle brick 11; and is provided with two-way fans 5 which are used one by one; wherein, the dilution air pipes 61 are arranged in pairs, each pair comprises two dilution air pipes 61, the two dilution air pipes 61 are respectively arranged at two sides of the cooling part of the glass kiln body 1, and the two dilution air nozzle bricks 12 are respectively and correspondingly arranged at two sides of the breast wall of the cooling part of the glass kiln body 1; the connecting line direction of the two dilution air pipes 61 is perpendicular to the different surface of the advancing direction of the glass liquid in the glass kiln body 1, and a plurality of pairs of dilution air pipes 61 arranged in parallel can be arranged; three pairs of dilution air ducts 61 are provided as shown in fig. 2.
Further, when the dilution air system 6 needs to be operated independently in float glass production, the DCS system 7 controls the natural gas shut-off valve 34, the first ball valve 32 and the second ball valve 37 of the natural gas main pipe 3 to be closed, the third ball valve 41 and the one-way valve 42 on the natural gas branch pipe 4 to be closed, and the first butterfly valve 532 on the combustion-supporting air branch pipe 53 to be closed. The ventilator 5 enables the output air quantity to meet the requirement of dilution air quantity through frequency regulation. The dilution air passes through the ventilation pipe 51, the combustion-supporting air main pipe 52 and the dilution air pipe 61 and finally enters the cooling part of the glass melting furnace body, so as to achieve the purpose of cooling.
Further, when the heating system of the cooling part needs to be operated separately in the float glass production, the DCS system 7 controls the second butterfly valve 64 on the dilution air pipe 61 to be closed at the moment. The ventilator 5 enables the output air quantity to meet the requirement of combustion-supporting air quantity through frequency regulation. The natural gas adjusts the flow of the natural gas through the natural gas adjusting valve 35 on the natural gas main pipe 3, and adjusts the flow of the combustion-supporting air through the first butterfly valve 532 of the combustion-supporting air branch pipe 53, so that the natural gas and the combustion-supporting air enter the cooling part of the glass melting furnace body for combustion through the natural gas burner 2 installed on the nozzle brick of the heating system of the cooling part, and the purpose of temperature rise is achieved.
Further, when it is required to operate the cooling portion heating system and the dilution air system 6 at the same time in the float glass production. The ventilator 5 enables the output air quantity to meet the requirements of the combustion-supporting air quantity and the dilution air quantity through frequency regulation. The natural gas adjusts the flow of the natural gas through the natural gas adjusting valve 35 on the natural gas main pipe 3, and adjusts the flow of the combustion-supporting air through the first butterfly valve 532 of the combustion-supporting air branch pipe 53, so that the natural gas and the combustion-supporting air enter the cooling part of the melting furnace through the natural gas burner 2 arranged on the heating nozzle of the cooling part to be combusted. The dilution air system 6 adjusts the flow of dilution air in each dilution air pipe 61 through a second butterfly valve 64 in the dilution air pipe 61. The dilution air enters the cooling part of the melting furnace through the dilution air pipe 61, the dilution air nozzle 62 and the dilution air nozzle brick 12. The glass liquid can be cooled for one time or multiple times. The glass liquid in the glass melting furnace can realize a temperature system of firstly heating and then cooling for one time or a plurality of times so as to achieve the purpose of adjusting the cooling curve of the cooling part to control the quality of the glass.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (10)
1. A tempering system for a cooling section of a glass furnace, comprising:
a glass kiln body;
at least one natural gas burner, wherein each natural gas burner is arranged on the cooling part of the glass kiln body;
the natural gas main pipe is connected with a natural gas inlet pipe through a pipeline;
one end of each natural gas branch pipe is connected with the other end of the natural gas main pipe, and the other end of each natural gas branch pipe is connected with one natural gas burner;
at least one ventilator;
one end of each ventilation pipe is connected with the output end of the ventilator;
the other end of each ventilation pipe is connected with one end of the combustion-supporting air main pipe;
one end of each combustion-supporting air branch pipe is connected with the other end of the combustion-supporting air main pipe, and the other end of each combustion-supporting air branch pipe is connected with one natural gas burner;
the dilution air system is provided with at least one dilution air input end and at least one dilution air output end, each dilution air input end is connected with one combustion air branch pipe, and each dilution air output end is connected with the glass kiln body.
2. The tempering system for a glass furnace cooling section according to claim 1, wherein said glass furnace body is provided with at least one heating nozzle brick, each of said natural gas burners being mounted to one of said heating nozzle bricks; the glass kiln body is at least provided with a diluted air nozzle brick, and each diluted air output end is installed on one diluted air nozzle brick.
3. The system according to claim 1, wherein each ventilator is a centrifugal ventilator with variable frequency regulation, each ventilator is provided with an electric multi-blade valve, and each combustion air main pipe is provided with an air main pipe flowmeter.
4. The temperature regulating system for the cooling part of the glass kiln as defined in claim 1, wherein each of the combustion air branch pipes is provided with, from one end to the other end thereof: the combustion-supporting air flow meter, the first butterfly valve, the fourth pressure meter and the two first joints, and the combustion-supporting air branch pipe between the two first joints is made of metal hoses.
5. The tempering system for a glass kiln cooling section according to claim 1, wherein said natural gas main is provided with, in sequence from one end to the other: the natural gas pipeline comprises a first pressure gauge, a first ball valve, a natural gas filter, a natural gas cut-off valve, a natural gas regulating valve, a natural gas flowmeter, a second ball valve and a second pressure gauge.
6. The tempering system for a glass kiln cooling section according to claim 1, wherein each of said natural gas branch pipes has disposed thereon from one end to the other end in sequence: the third ball valve, the one-way valve, the third pressure gauge and the two second connectors, and the natural gas branch pipe between the two second connectors is made of metal hoses.
7. The tempering system for a glass kiln cooling section according to claim 1, wherein said dilution air system comprises:
one end of each dilution air pipe is connected with one combustion air branch pipe;
diluting the tuyere, each dilute the input of tuyere all with one the other end of diluting the tuber pipe is connected, each dilute the output of tuyere all with this body coupling of glass kiln.
8. The temperature regulating system for the cooling part of the glass kiln as claimed in claim 7, wherein a dilution air flow meter, a second butterfly valve and a fifth pressure gauge are sequentially arranged from one end to the other end of each dilution air pipe.
9. The temperature regulating system for the cooling part of the glass kiln as defined in claim 2, wherein the axes of the air holes of the heating nozzle bricks are arranged along a horizontal direction, the axes of the air holes of the diluted air nozzle bricks are arranged obliquely upward with respect to the horizontal direction, and the included angle between the axes of the air holes of the diluted air nozzle bricks and the horizontal direction is 8-15 °.
10. The tempering system for a glass kiln cooling section according to claim 1, further comprising: and an external DCS system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023327380.XU CN215480527U (en) | 2020-12-31 | 2020-12-31 | Temperature adjusting system for cooling part of glass kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023327380.XU CN215480527U (en) | 2020-12-31 | 2020-12-31 | Temperature adjusting system for cooling part of glass kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215480527U true CN215480527U (en) | 2022-01-11 |
Family
ID=79718253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023327380.XU Active CN215480527U (en) | 2020-12-31 | 2020-12-31 | Temperature adjusting system for cooling part of glass kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215480527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117928220A (en) * | 2024-03-19 | 2024-04-26 | 淄博煜鼎新材料科技有限公司 | Red mud-based ceramic product sintering roller kiln |
-
2020
- 2020-12-31 CN CN202023327380.XU patent/CN215480527U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117928220A (en) * | 2024-03-19 | 2024-04-26 | 淄博煜鼎新材料科技有限公司 | Red mud-based ceramic product sintering roller kiln |
| CN117928220B (en) * | 2024-03-19 | 2024-05-24 | 淄博煜鼎新材料科技有限公司 | Red mud-based ceramic product sintering roller kiln |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215480527U (en) | Temperature adjusting system for cooling part of glass kiln | |
| CN108101345B (en) | Integrated thickness air adjusting system and method for glass substrate forming equipment | |
| CN207671926U (en) | A kind of bushing air flow controller for glass fibre production | |
| CN207646062U (en) | Oxygen-enriched combusting precise control device | |
| WO2019042155A1 (en) | Plasma heating-based temperature regulation method and device for blast furnace hot air system | |
| CN107502694A (en) | A kind of shaft furnace inlet duct and shaft furnace air inlet method | |
| CN204097319U (en) | Annealing furnace entrance sheet glass edge combustion heating system | |
| CN114395654B (en) | Blast furnace uniform air supply equipment with external flow control area and method | |
| CN108180499B (en) | A kind of pulverized-coal fired boiler wind powder trimming system and method | |
| CN102776304B (en) | Blast oxygen enrichment energy-saving technology and device for blast furnace | |
| CN207006140U (en) | A kind of energy-saving environmentally-friendly burner for gas fired-boiler | |
| CN103982973A (en) | Ventilating duct system distributed according to air volume and design method | |
| CN104154539A (en) | Oxygen-enriched combustion device | |
| CN214032565U (en) | Blast furnace blast humidifying device | |
| CN219474250U (en) | Muffle furnace and combustion system thereof | |
| CN207062314U (en) | A kind of shaft furnace inlet duct | |
| CN210662857U (en) | Combustion structure for industrial kiln | |
| CN208830405U (en) | A kind of equal balance system of industrial flow | |
| CN207180370U (en) | A kind of composite multi-component self-cooled melting spray gun | |
| CN101701157B (en) | Horizontal temperature regulating and controlling system of coke oven heated by coke oven gas | |
| CN206051831U (en) | A kind of combustion air feed system of furnace burning producer gas glass melter | |
| CN211057210U (en) | Humidification injection structure and hot galvanizing furnace nose | |
| CN207091471U (en) | Novel evacuated heat treatment bleeder mechanism | |
| CN213090430U (en) | Natural gas combustion-supporting device of rock wool cupola | |
| CN206037716U (en) | Kiln rapid cooling wind system all |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |