CN111189046A - Preheating flame gun device for metal mould - Google Patents
Preheating flame gun device for metal mould Download PDFInfo
- Publication number
- CN111189046A CN111189046A CN202010088410.1A CN202010088410A CN111189046A CN 111189046 A CN111189046 A CN 111189046A CN 202010088410 A CN202010088410 A CN 202010088410A CN 111189046 A CN111189046 A CN 111189046A
- Authority
- CN
- China
- Prior art keywords
- combustion
- pipe
- natural gas
- pressure air
- low
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 39
- 239000003345 natural gas Substances 0.000 claims abstract description 21
- 239000000446 fuel Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000002737 fuel gas Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/065—Cooling or heating equipment for moulds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/38—Torches, e.g. for brazing or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/52—Nozzles for torches; for blow-pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention discloses a preheating flame gun device for a metal mold, wherein a combustion pipe (5) is of an annular structure, one end of the combustion pipe is connected with a fuel mixing connecting pipe (8), and the other end of the combustion pipe is connected with a support frame (7); the end part of the fuel mixing connecting pipe is respectively connected with a natural gas pipe joint (1) and a low-pressure air pipe joint (2), and the annular combustion pipe is provided with a plurality of combustion holes (6). And a natural gas regulating valve (3) is arranged on the fuel mixing connecting pipe and at the side edge of the natural gas pipe joint, and a low-pressure air regulating valve (4) is arranged on the fuel mixing connecting pipe and at the side edge of the low-pressure air pipe joint. The hole sites of the combustion holes are arranged in a staggered mode. The invention can make the natural gas and the low-pressure air mixed and enter the combustion pipe for full combustion, and improve the combustion efficiency of the fuel gas. The hole sites of the burning holes are arranged in a staggered way, and the metal mould can be more uniform in the heating process by a multi-point and multi-direction flaming mode, so that the service life of the metal mould is prolonged. The device has a simple structure and wide application, fully improves the energy utilization rate, and greatly improves the production efficiency.
Description
Technical Field
The invention relates to a flame gun, in particular to a preheating flame gun device for a metal mold.
Background
The metal mold is an indispensable important component for production in the casting industry, and the metal mold must be heated to reach the required process temperature before production in the casting production process; the realization of the rapid and uniform preheating of the metal mold is a big difficulty of technical production, various modes such as electric heating tube heating, kerosene combustion heating, gas heating and the like are commonly adopted, but the defects of uneven preheating of the mold, short service life of the mold and easy occurrence of defects of products exist; the preheating period is long, and the production efficiency is low; the preheating energy consumption is high, and the production cost is high; the metal mold has diversified structures and different sizes, the application range of the mold flame gun is small, or the cavity of the preheated metal mold is blackened and deposited with carbon, and the cleanliness can not meet the production requirements and other problems.
Disclosure of Invention
The invention aims to overcome the defects and provide a preheating flame spray gun device of a metal mold, which has the advantages of full fuel combustion, multi-point flame spraying and uniform mold heating.
The purpose of the invention is realized by the following technical scheme: the metal mold preheating flame gun device comprises a combustion pipe, wherein the combustion pipe is of an annular structure, one end of the combustion pipe is connected with a fuel mixing connection pipe, and the other end of the combustion pipe is connected with a support frame; the end part of the fuel mixing connecting pipe is respectively connected with a natural gas pipe joint and a low-pressure air pipe joint, and the annular combustion pipe is provided with a plurality of combustion holes.
And a natural gas regulating valve is arranged on the fuel mixing connecting pipe and at the side edge of the natural gas pipe joint, and a low-pressure air regulating valve is arranged on the fuel mixing connecting pipe and at the side edge of the low-pressure air pipe joint.
The positions of the combustion holes are divided into a hole site group A and a hole site group B, and the hole sites of the hole site group A and the hole site group B are arranged in a staggered mode.
After the invention is adopted, the end parts of the fuel mixing connecting pipe are respectively connected with the natural gas pipe joint and the low-pressure air pipe joint, so that the natural gas and the low-pressure air are mixed and enter the combustion pipe for full combustion, and the natural gas regulating valve and the low-pressure air regulating valve are arranged for respectively regulating the gas quantity mixing proportion of the natural gas and the low-pressure air, controlling the combustion flame size and improving the combustion efficiency of the fuel gas. The hole sites of the burning holes are arranged in a staggered way, and the metal mould can be more uniform in the heating process by a multi-point and multi-direction flaming mode, so that the service life of the metal mould is prolonged. The device has a simple structure and wide application, fully improves the energy utilization rate, and greatly improves the production efficiency.
Drawings
Fig. 1 is a schematic view of the installation and application structure of the present invention.
Fig. 2 is a schematic enlarged sectional view of a mark F in fig. 1.
FIG. 3 is a schematic view showing the arrangement of hole sites (hole site group A) of the combustion holes in FIG. 2.
FIG. 4 is a schematic view showing the hole site arrangement (hole site group B) of the combustion holes in FIG. 2.
Detailed Description
Referring to fig. 1, the metal mold preheating flame gun device of the present invention includes a combustion pipe 5 (made of stainless steel heat-resistant circular pipe), wherein the combustion pipe 5 is of an annular structure, one end of the combustion pipe 5 is connected with a fuel mixing connection pipe 8, and the other end is connected with a support frame 7 (for fixing the flame gun device in a cavity of a metal mold 9 to be heated); the end part of the fuel mixing connecting pipe 8 is respectively connected with a natural gas pipe joint 1 (communicated with natural gas) and a low-pressure air pipe joint 2 (communicated with low-pressure air), and the annular combustion pipe 5 is provided with a plurality of combustion holes 6 (the diameter is about 5 mm). The natural gas adjusting valve 3 is arranged on the fuel mixing connecting pipe 8 and at the side edge of the natural gas pipe joint 1, and the low-pressure air adjusting valve 4 is arranged on the fuel mixing connecting pipe 8 and at the side edge of the low-pressure air pipe joint 2 and used for adjusting the air quantity mixing ratio of natural gas and low-pressure air, controlling the size of combustion flame and improving the combustion efficiency of gas. When the mixing ratio of the natural gas to the low-pressure air is 1: 3 (the natural gas pressure is 0.08mpa and the low-pressure air is 0.3 mpa), the color of the sprayed flame is orange with light blue, which indicates that the fuel is fully combusted.
As shown in fig. 2, 3 and 4, the positions of the combustion holes 6 can be divided into a hole site group a and a hole site group B, and the hole sites of the hole site group a and the hole site group B are arranged in a staggered manner; the hole site group A and the hole site group B are respectively provided with three hole sites (A-1, A-2, A-3 and B-1, B-2 and B-3), the angles between the hole sites are respectively 90 degrees and 60 degrees and are arranged in a staggered way at intervals (namely, the angle between the hole sites A-1 and A-2, and the angle between the hole sites B-1 and B-2 of the hole site group A or the hole site group B is 90 degrees, and the angle between the hole sites A-2 and A-3, and the angle between the hole sites B-2 and B-3 is 60 degrees), and the metal mould can be heated more uniformly in the heating process by a multi-point multi-directional flame spraying mode.
Claims (4)
1. Metal mold preheats flame gun device, including combustion tube (5), its characterized in that: the combustion pipe (5) is of an annular structure, one end of the combustion pipe (5) is connected with the fuel mixing connecting pipe (8), and the other end of the combustion pipe is connected with the support frame (7); the end part of the fuel mixing connecting pipe (8) is respectively connected with a natural gas pipe joint (1) and a low-pressure air pipe joint (2), and a plurality of combustion holes (6) are arranged on the annular combustion pipe (5).
2. The metal mold preheating flame gun device according to claim 1, wherein: the fuel mixing connecting pipe (8) is provided with a natural gas regulating valve (3) at the side of the natural gas pipe joint (1), and the fuel mixing connecting pipe (8) is provided with a low-pressure air regulating valve (4) at the side of the low-pressure air pipe joint (2).
3. The metal mold preheating flame gun apparatus as recited in claim 1 or 2, wherein: the positions of the combustion holes (6) are divided into a hole site group A and a hole site group B, and the hole sites of the hole site group A and the hole site group B are arranged in a staggered mode.
4. The metal mold preheating flame gun device according to claim 3, wherein: the hole site A group and the hole site B group are respectively provided with three hole sites, and the angles between the hole sites are respectively arranged at intervals of 90 degrees and 60 degrees in a staggered manner.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010088410.1A CN111189046A (en) | 2020-01-18 | 2020-01-18 | Preheating flame gun device for metal mould |
| PCT/CN2020/117273 WO2021143196A1 (en) | 2020-01-18 | 2020-09-24 | Metal mold preheating flame gun device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010088410.1A CN111189046A (en) | 2020-01-18 | 2020-01-18 | Preheating flame gun device for metal mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111189046A true CN111189046A (en) | 2020-05-22 |
Family
ID=70706612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010088410.1A Pending CN111189046A (en) | 2020-01-18 | 2020-01-18 | Preheating flame gun device for metal mould |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111189046A (en) |
| WO (1) | WO2021143196A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143196A1 (en) * | 2020-01-18 | 2021-07-22 | 温州瑞明工业股份有限公司 | Metal mold preheating flame gun device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000021060A (en) * | 1998-09-25 | 2000-04-15 | 고태곤 | Gas roaster having two-way combustion pipe |
| CN203778739U (en) * | 2014-05-07 | 2014-08-20 | 广西玉柴机器股份有限公司 | Mould heating device |
| CN205119068U (en) * | 2015-11-11 | 2016-03-30 | 登封电厂集团铝合金有限公司 | Air brush |
| CN105972592A (en) * | 2016-06-22 | 2016-09-28 | 湖北新华光信息材料有限公司 | Mesh belt preheat burner |
| CN207447324U (en) * | 2017-09-22 | 2018-06-05 | 佛山市南海奔达模具有限公司 | For preheating the heating unit of multimode cavity Metallic Casting Die ＆ Mold |
| CN213395296U (en) * | 2020-01-18 | 2021-06-08 | 温州瑞明工业股份有限公司 | Preheating flame gun device for metal mould |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3493380B2 (en) * | 1993-12-28 | 2004-02-03 | 株式会社ショーワ | Mold preheating device |
| CN102642014A (en) * | 2011-02-21 | 2012-08-22 | 远轻铝业（中国）有限公司 | Cast metal die heating device |
| CN103111607B (en) * | 2012-12-31 | 2015-03-11 | 温州瑞明工业股份有限公司 | Metal die preheating device and metal die preheating technology thereof |
| CN203610652U (en) * | 2013-12-26 | 2014-05-28 | 湖北航特装备制造股份有限公司 | Gas heater for metal mold type gravity casting dies |
| CN103706779A (en) * | 2013-12-27 | 2014-04-09 | 广东鸿特精密技术股份有限公司 | Method and device for controlling temperature of mould heated by fuel gas in sectionalized mode in aluminium alloy gravity casting |
| CN111189046A (en) * | 2020-01-18 | 2020-05-22 | 温州瑞明工业股份有限公司 | Preheating flame gun device for metal mould |
-
2020
- 2020-01-18 CN CN202010088410.1A patent/CN111189046A/en active Pending
- 2020-09-24 WO PCT/CN2020/117273 patent/WO2021143196A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000021060A (en) * | 1998-09-25 | 2000-04-15 | 고태곤 | Gas roaster having two-way combustion pipe |
| CN203778739U (en) * | 2014-05-07 | 2014-08-20 | 广西玉柴机器股份有限公司 | Mould heating device |
| CN205119068U (en) * | 2015-11-11 | 2016-03-30 | 登封电厂集团铝合金有限公司 | Air brush |
| CN105972592A (en) * | 2016-06-22 | 2016-09-28 | 湖北新华光信息材料有限公司 | Mesh belt preheat burner |
| CN207447324U (en) * | 2017-09-22 | 2018-06-05 | 佛山市南海奔达模具有限公司 | For preheating the heating unit of multimode cavity Metallic Casting Die ＆ Mold |
| CN213395296U (en) * | 2020-01-18 | 2021-06-08 | 温州瑞明工业股份有限公司 | Preheating flame gun device for metal mould |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143196A1 (en) * | 2020-01-18 | 2021-07-22 | 温州瑞明工业股份有限公司 | Metal mold preheating flame gun device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021143196A1 (en) | 2021-07-22 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |