CN201382423Y - Black smoke treating device for precision casting mold shell roasting furnace - Google Patents
Black smoke treating device for precision casting mold shell roasting furnace Download PDFInfo
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- CN201382423Y CN201382423Y CN200920011185U CN200920011185U CN201382423Y CN 201382423 Y CN201382423 Y CN 201382423Y CN 200920011185 U CN200920011185 U CN 200920011185U CN 200920011185 U CN200920011185 U CN 200920011185U CN 201382423 Y CN201382423 Y CN 201382423Y
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Abstract
The utility model provides a black smoke treating device for a precision casting mold shell roasting furnace, which is characterized in that the black smoke treating device mainly comprises a secondary combustion chamber body, a burner and a fan, wherein the secondary combustion chamber body is provided with a gas outlet and a gas inlet which are communicated with each other through a channel; smoke can flow in a Z shape in the channel; a burner port and a secondary combustion air inlet are arranged close to the gas inlet; the burner port is communicated with the burner; and the secondary combustion air inlet is communicated with the fan. The utility model resolves the problem that in the process of roasting mold shells, the precision casting mold shell roasting furnace can emit excessive carbon monoxide to pollute the environment. The black smoke treating device, which has the advantages of simple and reasonable structure and convenient use, can benefit environmental protection and can be widely popularized and applied.
Description
Technical field:
The utility model relates to a kind of electric hot investment casting and burns shell furnace black fume treating device, belongs to flue gas and burns field of purification.
Background technology:
Shell must burn after by wax pattern system shell in hot investment casting enterprise before casting, make case temperature reach the temperature approaching with molten steel, implementing molten steel then injects, because the housing dewaxing can not remove fully, therefore shell mould is put into the residual cured burning of moment of burning the shell stove and is produced a large amount of black smokes, each shell process black smoke that burns continues to produce 15 ~ 20 minutes, by smoke stack emission after stain environment, often is subjected to the punishment of environmental law enforcement department.
Summary of the invention:
The utility model purpose: the utility model provides a kind of hot investment casting to burn shell furnace black fume treating device, its objective is that solving hot investment casting burns the environmental pollution problems that the shell stove exceeds standard and brings at the carbon monoxide emission that burns the generation of shell process.
Technical scheme: the utility model is achieved through the following technical solutions:
Shell furnace black fume treating device is burnt in a kind of hot investment casting, and it is characterized in that: this device mainly comprises dual firing chamber's body, burner and air-supply arrangement; Dual firing chamber's body is provided with gas vent and gas access, between gas vent and the gas access by making flue gas be the channel connection that " it " font flows; Be provided with port and secondary combustion air inlet in the position near the gas access, port is communicated with burner, and the secondary combustion air inlet is communicated with air-supply arrangement.
Described burner is a burner, and described air-supply arrangement is an air blast.
Burner is communicated with fuel gas pipeline; The secondary combustion air inlet is communicated with air blast by the air blast pipeline, also is provided with valve on the air blast pipeline.
Gas vent is arranged on dual firing chamber's upper part of body, and the gas access is arranged on the bottom of dual firing chamber's body.
Two or more interlaced combustion wall can be set in dual firing chamber's body make formation " it " font passage between gas vent and the gas access.
Advantage and effect: the utility model is to burn the shell stove at hot investment casting to burn the treating apparatus that the shell process produces black smoke, by setting up secondary combustion chamber in the outlet of burning shell kiln gas, black smoke is burnt once more,, filled up the blank of domestic this technical field to reach the purpose of clean emission.The type loop structure of the inner employing of this device, utilize combustion wall to form at interval, make air-flow circle round, stir, prolong black smoke in dual firing chamber's time of staying, through the burner (gas type) that calculates (according to burning shell stove model size) type selecting it is carried out second-time burning, thereby reach the purpose of eliminating black smoke, residual carbon monoxide also burns and is converted into carbon dioxide in the black smoke simultaneously, the possible environmental pollution of having avoided carbon monoxide emission to exceed standard bringing.Start dual firing chamber's body by travel switch when burning the unlatching of shell furnace door, make dual firing chamber's burner igniting, reach the above temperature of 900 degree in short time, a large amount of black smokes that shell mould is put into the back generation directly enter dual firing chamber's body, flue gas turns round before first combustion wall, stir, again under the direct effect of dual firing chamber's burner, do not have the black smoke composition of after-flame to burn once more, type structure effectively delay the holdup time of black smoke in dual firing chamber, make the completing combustion of black smoke composition, do not contained not clean-burning composition behind the flue gas process dual firing chamber body, by smoke stack emission the time, there is not black smoke to discharge, reached clean emission.Replenishing by high pressure positive blower of the required combustion air of dual firing chamber realizes that institute's required airflow is regulated by the aperture of control valve.
This apparatus structure is succinctly reasonable, and is easy to use, has good facilitation for the protection environment, relatively is beneficial to large-area applying.
Description of drawings:
Fig. 1 is a sectional structure schematic diagram of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to profile;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is user mode figure of the present utility model;
Fig. 5 is the partial top view of user mode of the present utility model;
Fig. 6 is the legend of each accompanying drawing of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is done nearly step explanation:
As illustrated in fig. 1 and 2, the utility model provides a kind of hot investment casting to burn shell furnace black fume treating device, and this device mainly comprises dual firing chamber's body 1, burner and air-blast device; Described burner can be burner 4; Described air-blast device is an air blast 8, can certainly adopt other known air-supply arrangement.Dual firing chamber's body 1 is provided with gas vent 2 and gas access 5, between gas vent 2 and the gas access 5 by making flue gas be the channel connection that " it " font flows; Be provided with port and secondary combustion air inlet 3 in position near gas access 5, port is communicated with burner 4, the secondary combustion air inlet is communicated with air blast 8, port and secondary combustion air inlet 3 is with the channel connection of " it " font, as long as satisfying flue gas apart from the position of gas access 5, port when entering gas access 5, can burn, and secondary combustion air inlet 3 mainly is to provide enough air for burning, so its position is as long as can satisfy the effect that helps burning;
Pipeline 19 (seeing accompanying drawing 4) is a by-pass line, is used for handling shell to put into the part black smoke that process is overflowed from fire door, further prevents leaking of black smoke.
Gas vent 2 is arranged on the top of dual firing chamber's body 1, and gas access 5 is arranged on the bottom of dual firing chamber's body 1.
Burner 4 provides fuel by fuel gas pipeline 6; The secondary combustion air inlet is communicated with air blast 8 by air blast pipeline 7, also is provided with valve 9 on air blast pipeline 7, and the effect of valve 9 mainly is to regulate burning institute required airflow.
As shown in Figure 1, two or more interlaced combustion wall 13 can be set in dual firing chamber's body 1 and make formation " it " font passage between gas vent 2 and the gas access 5." it " font passage in the combustion chamber body 1 also can be one-time formed structure.
Fig. 3 is the vertical view of Fig. 1.
Be the legend of each figure shown in Fig. 6, it is the refractory brick of SK34 that the form shown in the label 14 can adopt model; Form shown in the number in the figure 15 is a flame retardant coating; Form shown in the number in the figure 16 is an insulation layer; Form shown in the number in the figure 17 is the pearl rock stratum; Form shown in the number in the figure 18 is for firing air layer again.
Shown in Fig. 3 and 4, the utility model is communicated with by air inlet pipeline 10 gas access 5 in use with the exhanst gas outlet of casting mold firing furnace 11, making the imperfect combustion of residual wax in burning shell process discharge a large amount of black smokes enters in " it " font passage of dual firing chamber's body 1 from gas access 5, open burner 4 then, make dual firing chamber's burner igniting, reach the above temperature of 900 degree in short time, a large amount of black smokes that shell mould is put into the back generation directly enter dual firing chamber's body, flue gas turns round before first combustion wall, stir, under the direct effect of dual firing chamber's burner 4, there is not the black smoke composition of after-flame to burn once more, " it " type structure effectively delays the holdup time of black smoke in dual firing chamber, make the completing combustion of black smoke composition, do not contained not clean-burning composition behind the flue gas process dual firing chamber body, discharging by gas vent 2, also gas vent 2 can be communicated with chimney by outlet pipe 12, the flue gas of Pai Chuing just can be discharged by chimney like this, and treated gas is when discharging, not that black smoke is discharged, reached clean emission.Replenishing by high pressure positive blower of required combustion air realizes that institute's required airflow is regulated by the aperture of control valve in dual firing chamber's body.
The utility model is to burn the shell stove at hot investment casting to burn the treating apparatus that the shell process produces black smoke, by setting up secondary combustion chamber in the outlet of burning shell kiln gas, black smoke is burnt once more, to reach the purpose of clean emission.It has solved hot investment casting and has burnt the environmental pollution problems that the shell stove exceeds standard and brings at the carbon monoxide emission that burns the generation of shell process.
This apparatus structure is succinctly reasonable, and is easy to use, has good facilitation for the protection environment, relatively is beneficial to large-area applying.
Claims (5)
1, shell furnace black fume treating device is burnt in a kind of hot investment casting, and it is characterized in that: this device mainly comprises dual firing chamber's body (1), burner and air-supply arrangement; Dual firing chamber's body (1) is provided with gas vent (2) and gas access (5), between gas vent (2) and gas access (5) by making flue gas be the channel connection that " it " font flows; Be provided with port and secondary combustion air inlet (3) in the position near gas access (5), port is communicated with burner, and the secondary combustion air inlet is communicated with air-supply arrangement.
2, shell furnace black fume treating device is burnt in hot investment casting according to claim 1, and it is characterized in that: described burner is burner (4), and described air-supply arrangement is air blast (8).
3, shell furnace black fume treating device is burnt in hot investment casting according to claim 2, and it is characterized in that: burner (4) is communicated with fuel gas pipeline (6); The secondary combustion air inlet is communicated with air blast (8) by air blast pipeline (7), also is provided with valve (9) on air blast pipeline (7).
4, shell furnace black fume treating device is burnt in described hot investment casting according to any claim in the claim 1 to 3, it is characterized in that: gas vent (2) is arranged on the top of dual firing chamber's body (1), and gas access (5) are arranged on the bottom of dual firing chamber's body (1).
5, shell furnace black fume treating device is burnt in hot investment casting according to claim 4, it is characterized in that: two or more interlaced combustion wall (13) can be set in dual firing chamber's body (1) make formation " it " font passage between gas vent (2) and gas access (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920011185U CN201382423Y (en) | 2009-03-09 | 2009-03-09 | Black smoke treating device for precision casting mold shell roasting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920011185U CN201382423Y (en) | 2009-03-09 | 2009-03-09 | Black smoke treating device for precision casting mold shell roasting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382423Y true CN201382423Y (en) | 2010-01-13 |
Family
ID=41525896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920011185U Expired - Fee Related CN201382423Y (en) | 2009-03-09 | 2009-03-09 | Black smoke treating device for precision casting mold shell roasting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382423Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710301A (en) * | 2015-09-17 | 2016-06-29 | 中国科学院金属研究所 | Gas shielding method for investment casting high-temperature alloy casting |
| CN110586907A (en) * | 2019-09-26 | 2019-12-20 | 江苏钢锐精密机械有限公司 | Casting site flue gas recovery method and multifunctional casting iron weight capable of collecting dust and recovering |
-
2009
- 2009-03-09 CN CN200920011185U patent/CN201382423Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710301A (en) * | 2015-09-17 | 2016-06-29 | 中国科学院金属研究所 | Gas shielding method for investment casting high-temperature alloy casting |
| CN110586907A (en) * | 2019-09-26 | 2019-12-20 | 江苏钢锐精密机械有限公司 | Casting site flue gas recovery method and multifunctional casting iron weight capable of collecting dust and recovering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20110309 |