CN210145843U - Waste gas treatment device of die-casting - Google Patents
Waste gas treatment device of die-casting Download PDFInfo
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- CN210145843U CN210145843U CN201920557361.4U CN201920557361U CN210145843U CN 210145843 U CN210145843 U CN 210145843U CN 201920557361 U CN201920557361 U CN 201920557361U CN 210145843 U CN210145843 U CN 210145843U
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Abstract
The utility model provides a die-casting waste gas treatment device, which comprises a waste gas collecting device, a waste gas conveying device and a waste gas treatment device, wherein the waste gas treatment device comprises an absorption device, a dry-wet separation device, a filtering device, a photo-oxidation catalytic device and an exhaust device; the device adopts a mode that the waste gas collecting device, the waste gas conveying device and the waste gas treatment device are matched, the waste gas collecting device collects waste gas generated in the die-casting process and conveys the waste gas to the waste gas treatment device for treatment through the waste gas conveying device, and the timeliness of waste gas treatment is ensured; the waste gas treatment device treats pollutants such as dust, acid gas, organic matters and the like in waste gas in stages in a mode of matching the absorption device, the dry-wet separation device, the filtering device, the photo-oxidation catalytic device and the exhaust device, so that the thoroughness of waste gas treatment is ensured, the treated waste gas can be directly discharged into the air, and the working environment of operators is ensured.
Description
Technical Field
The utility model relates to the technical field of waste gas, especially, relate to a waste gas treatment device of die-casting.
Background
The die casting process is divided into hot chamber die casting and cold chamber die casting according to the temperature of a die, liquid metal is used as a raw material in the cold chamber die casting, the liquid metal is injected into the die for die casting, and a metal melting furnace is often arranged beside the liquid metal to meet the process requirement; when in cold die casting, a lubricant is used between a die and a workpiece (initial product), the lubricant is heated by the workpiece (initial product) to form waste gas, the waste gas is represented by non-methane total hydrocarbon, the gas can pollute workshops and the surrounding environment, and a large amount of waste gas can be generated in the smelting process of metal raw materials, wherein the waste gas contains a large amount of smoke dust, oxides containing sulfur, carbon, phosphorus and nitrogen, various metal oxides, non-metal oxides and the like, and simultaneously possibly contains harmful substances, so that the workshops and the surrounding environment are polluted; in order to ensure the health of operators, people adopt an exhaust gas treatment system to treat exhaust gas generated by die casting, for example, patent "CN 108452656A" discloses an exhaust gas treatment device for aluminum alloy die casting production, and the exhaust gas is treated by an S-shaped spraying device; the device realizes the treatment of the die-casting waste gas through the contact of liquid and gas, only can treat dust and partial acid gas in the die-casting waste gas, other substances in the waste gas cannot be treated, such as oil gas, non-methane total hydrocarbon and the like, the treatment efficiency of the device to the dust and partial acid gas is about 80 percent, the treated waste gas directly discharged into the air can pollute the air, and the environmental safety around the waste gas is seriously influenced.
Disclosure of Invention
In order to overcome the following problems in the prior art, the prior waste gas treatment device has insufficient treatment on the die-casting waste gas, and part of harmful gas can not be treated, thereby influencing the environmental safety around. The utility model provides a waste gas treatment device of die-casting, including waste gas collection device, waste gas conveyor and exhaust treatment device, waste gas collection device is connected with waste gas conveyor, and waste gas conveyor's the other end is connected with exhaust treatment device, its characterized in that: the waste gas treatment device comprises an absorption device, a dry-wet separation device, a filtering device, a photo-oxidation catalytic device and an exhaust device, wherein the absorption device is connected with a waste gas conveying device, the other end of the absorption device is fixedly connected with the dry-wet separation device, the other end of the dry-wet separation device is connected with the filtering device, the other end of the filtering device is connected with the photo-oxidation catalytic device, and the other end of the photo-oxidation catalytic device is connected with the exhaust device.
On the basis, the waste gas conveying device is connected with one side of the upper end of the absorption device, and the dry-wet separation device is positioned on the other side of the upper end of the absorption device.
On this basis, the absorption device comprises an adsorption tower and a liquid circulation device, wherein the liquid circulation device penetrates through the inside and the outside of the adsorption tower and is fixedly connected with the adsorption tower.
On the basis, the adsorption tower is a rotary adsorption tower.
On the basis, the filtering device is an activated carbon filtering device.
On this basis, waste gas collection device includes that die casting machine waste gas retrieves cover and melting furnace waste gas and retrieves the cover, die casting machine waste gas retrieves the upper end that the cover is located the die casting machine, melting furnace waste gas retrieves the upper end that the cover is located the melting furnace, die casting machine waste gas retrieves cover one end and is connected with the one end of melting furnace waste gas recovery cover.
On the basis, the waste gas conveying device comprises a branch pipeline, a conveying fan and a main pipeline, one end of the main pipeline is fixedly connected with the waste gas treatment device, the branch pipeline at the other end of the main pipeline is fixedly connected, the other end of the branch pipeline is fixedly connected with the conveying fan, and the other end of the conveying fan is fixedly connected with the waste gas collecting device.
On this basis, the branch pipeline is a hard pipe made of steel materials, the branch pipeline comprises two bends, and the two bends are located on two mutually perpendicular planes.
On this basis, the waste gas conveying device further comprises a valve, wherein the valve is located between the branch pipeline and the main pipeline, one end of the valve is fixedly connected with the branch pipeline, and the other end of the valve is connected with the main pipeline.
On this basis, the conveying fan is a high-temperature resistant fan.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this device adopts waste gas collection device, waste gas conveyor and waste gas treatment device complex mode, waste gas conveyor carries waste gas that waste gas collection device collected to waste gas treatment device handles, waste gas treatment's promptness has been guaranteed, and waste gas treatment device passes through absorbing device, dry and wet separator, filter equipment, light oxygen catalytic unit and exhaust apparatus matched with mode, to dust in the waste gas, acid gas, oil gas, pollutant such as non-methane total hydrocarbon is handled in the stage, waste gas purification's sufficiency has been guaranteed, make the waste gas after handling can directly vent to the air, staff's operational environment and surrounding environment's quality has been guaranteed.
2. This absorbing device adopts the rotation type adsorption tower, has improved the area of contact of adsorption liquid and waste gas, has guaranteed the adsorption efficiency of acid gas and dust to cooperation waste gas conveyor and wet separator all are located absorbing device's upper end futilely, thereby make waste gas from top to bottom, have again down and last reaction in absorbing device adsorb, have guaranteed absorbent sufficiency, have improved exhaust-gas treatment's purification efficiency.
3. This waste gas collection device adopts die casting machine waste gas to retrieve the cover, the mode that melting furnace waste gas recovery cover combines, die casting machine waste gas recovery cover is used for retrieving the waste gas that the die casting machine produced, melting furnace waste gas recovery cover is used for retrieving the waste gas that the melting furnace produced, combine different operating mode to carry out different structural design, when guaranteeing that the all-round waste gas to the production of die-casting in-process retrieves, the convenience of work has been guaranteed, die-casting operating personnel's operational environment and work efficiency have been improved.
4. This waste gas conveyor adopts branch pipeline and delivery fan to pair die casting machine and melting furnace and forces to air exhaust, makes and keeps the negative pressure in the waste gas collection device, has guaranteed that the waste gas that die casting machine and melting furnace produced all discharges, avoids because the sealed not tight waste gas that leads to of waste gas collection device leaks, has guaranteed die-casting operating personnel's operational environment.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an exhaust gas treatment device according to an embodiment of the present invention;
in the figure: 1. a waste gas collecting device 11, a waste gas recovery cover of a die casting machine 12, a waste gas recovery cover of a melting furnace 2, a waste gas conveying device 21, a branch pipeline 22, a conveying fan 23, a valve 24, a main pipeline 3, a waste gas processing device 31, an absorption device 32, a dry-wet separation device 33, a filtering device 34, a light oxygen catalytic device 35 and an exhaust device,
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1-2, the present invention schematically illustrates a die-cast exhaust treatment device.
The utility model discloses a waste gas treatment device of die-casting, as shown in figure 1, including waste gas collection device 1, waste gas conveyor 2 and waste gas treatment device 3, waste gas collection device 1 is connected with waste gas conveyor 2, waste gas conveyor 2 is connected with waste gas treatment device 3, waste gas collection device 1 collects the waste gas that produces during die-casting and conveys to waste gas treatment device 3 through waste gas conveyor 2, waste gas treatment device 3 handles the die-casting waste gas, guarantees the promptness of die-casting waste gas treatment, has guaranteed the operational environment of die-casting workshop; the waste gas collecting device 1 comprises a die-casting machine waste gas recovery cover 11 and a melting furnace waste gas recovery cover 12, the die-casting machine waste gas recovery cover 11 is positioned at the upper end of a die-casting machine, the melting furnace waste gas recovery cover 12 is positioned at the upper end of the melting furnace, one end of the die-casting machine waste gas recovery cover 11 is connected with one end of the melting furnace waste gas recovery cover 12, a mode that the die-casting machine waste gas recovery cover 11 is matched with the melting furnace waste gas recovery cover 12 is adopted, the die-casting machine waste gas recovery cover 11 is used for recovering waste gas generated by the die-casting machine, the melting furnace waste gas recovery cover 12 is used for recovering waste gas generated by the melting furnace, waste gas generated in the die-casting process; the die casting machine waste gas recovery cover 11 comprises a die casting machine waste gas recovery fixed end, a die casting machine waste gas recovery movable end and a movable guide rail, wherein the die casting machine waste gas recovery fixed end is positioned at one end of the upper part of a die casting machine and is fixedly connected with the die casting machine, the movable guide rail is positioned at the upper end of the die casting machine and is fixedly connected with the die casting machine, the die casting machine waste gas recovery movable end is positioned at the upper end of the movable guide rail and moves left and right along the movable guide rail to form a complete housing together with the die casting machine waste gas recovery fixed end, the die casting machine waste gas recovery; the waste gas recovery hood 12 of the melting furnace comprises a waste gas recovery fixed end of the melting furnace, a waste gas recovery fixed frame of the melting furnace and a waste gas recovery movable end of the melting furnace, the waste gas recovery fixed frame of the melting furnace is positioned at the lower part of the waste gas recovery fixed end of the melting furnace, and extends out of the waste gas recovery fixed end of the melting furnace, the waste gas recovery movable end of the melting furnace is positioned at the upper end of the waste gas recovery fixed frame of the melting furnace, the melting furnace waste gas recovery fixed end and the melting furnace waste gas recovery movable end form a complete housing, the two-section structure of the melting furnace waste gas recovery movable end and the melting furnace waste gas recovery fixed end is convenient for the lifting of the melting furnace when the melting furnace is replaced, the die casting machine waste gas recovery cover 11 and the melting furnace waste gas recovery cover 12 are combined with different working conditions to carry out different structural designs, the waste gas generated in the die-casting process is recovered in an all-around manner, the convenience of work is guaranteed, and the working environment and the working efficiency of die-casting operators are improved; the waste gas conveying device 2 comprises a branch pipeline 21, a conveying fan 22, a valve 23 and a main pipeline 24, one end of the branch pipeline 21 is fixedly connected with the main pipeline 24, the other end of the branch pipeline is fixedly connected with the valve 23, the other end of the valve 23 is fixedly connected with the conveying fan 22, the other end of the conveying fan 22 is fixedly connected with the waste gas collecting device 1, the other end of the main pipeline 24 is fixedly connected with the waste gas processing device 3, the branch pipeline 21 is a hard pipe made of steel materials and cannot be bent, and deformation can be guaranteed, the branch pipeline 21 comprises two bends, the two bends are positioned on two mutually vertical planes, the two bends can absorb and compensate shrinkage when the temperature of the branch pipeline 21 changes, so that the branch pipeline 21 can bear the temperature of 600 ℃, meanwhile, the branch pipeline 21 is made of steel materials, has a fireproof function, and avoids burning of hose materials at high temperature, the safety of the workshop is ensured; the branch pipeline 21 is matched with the conveying fan 22 to forcibly exhaust the die-casting machine and the melting furnace, so that negative pressure is kept in the waste gas collecting device 1, all waste gas generated by the die-casting machine and the melting furnace is ensured to be discharged, waste gas leakage caused by poor sealing of the waste gas collecting device 1 is avoided, a valve 23 is arranged between the branch pipeline 21 and the main pipeline 24, when a single die-casting machine and the melting furnace do not work, waste gas generated by other equipment cannot leak, the reliability of waste gas conveying is ensured, and the conveying fan 22 is a high-temperature resistant fan, so that the reliability of the waste gas conveying device 2 is prevented from being influenced by high temperature of die-casting waste gas; the tail end of the waste gas conveying device 2 is provided with a waste gas treatment device 3, the waste gas treatment device 3 comprises an absorption device 31, a dry-wet separation device 32, a filter device 33, a photo-oxidation catalytic device 34 and an exhaust device 35, as shown in fig. 2, the absorption device 31 is connected with the waste gas conveying device 2, the upper end of the absorption device 31 is fixedly connected with the dry-wet separation device 32, the dry-wet separation device 32 is connected with the filter device 33, the other end of the filter device 33 is connected with the photo-oxidation catalytic device 34, and the other end of the photo-oxidation catalytic device 34 is connected with the exhaust device 35; the absorption apparatus 31 comprises an adsorption column 311 and a liquid circulation apparatus 312, the liquid circulation apparatus 312 penetrates the inside and outside of the adsorption column 311, the liquid circulation device 312 is used for providing adsorption liquid for the adsorption tower 311, the adsorption tower 311 is used for absorbing dust, acid gas and organic vapor of various components in the waste gas, the adsorption tower 311 is a cyclone tower, the waste gas conveying device 2 is contacted with the upper end of the adsorption tower 311, the waste gas enters the adsorption tower 311 from the upper end of the adsorption tower 311, and the waste gas is contacted with a spray cavity, a water cyclone section, a gas-water mixed-flow cavity and a packing section in the adsorption tower 311 to realize the adsorption of the dust, the acid gas and the organic vapor of various components, the waste gas is discharged from the upper end of the adsorption tower 311, so that the waste gas is from top to bottom, and is reacted and adsorbed in the absorption device from bottom to top, the adsorption sufficiency is ensured, and the purification efficiency of waste gas treatment is improved; the upper end of the adsorption tower 311 is provided with a dry-wet separation device 32 which is used for absorbing the absorption liquid in the gas after the waste gas is treated by the adsorption tower 311, so that part of the vaporific absorption liquid is prevented from being brought into a subsequent treatment device to influence the smooth operation of a subsequent process; a filtering device 33 is arranged at the rear end of the dry-wet separation device 32, and the filtering device 33 is an activated carbon filtering device and is used for adsorbing organic solvent vapor and other harmful gas-phase substances in the waste gas; the photo-oxidation catalytic device 34 is arranged at the rear end of the filtering device 33, and the photo-oxidation catalytic device 34 oxidizes organic pollutants into nontoxic and harmless products through the catalytic oxidation of ultraviolet light, so that the purification of residual organic matters of waste gas is further ensured, the complete treatment of die-casting waste gas is realized, and the safety of the surrounding environment is ensured; be provided with exhaust apparatus 35 at the tip of light oxygen catalysis device 34, exhaust apparatus 35 includes fan and chimney, fan and light oxygen catalysis device 34 fixed connection, and the chimney is located the other end of fan for in will handling the air of clean gas emission, exhaust apparatus 35 provides power for the removal of waste gas, has improved exhaust-gas treatment device 3's exhaust-gas treatment ability, makes the waste gas timely processing of die-casting process production, has guaranteed surrounding operational environment.
The device adopts a mode that the waste gas collecting device 1, the waste gas conveying device 2 and the waste gas treatment device 3 are matched, the waste gas collecting device 1 collects waste gas generated in the die-casting process and conveys the waste gas to the waste gas treatment device 3 through the waste gas conveying device 2, and the waste gas treatment device 3 treats the die-casting waste gas, so that the timeliness of waste gas treatment is ensured; the waste gas treatment device 3 treats pollutants such as dust, acid gas, organic matters and the like in the waste gas in stages in a mode of matching the absorption device 31, the dry-wet separation device 32, the filter device 33, the photo-oxidation catalytic device 34 and the exhaust device 35, so that the thoroughness of waste gas treatment is ensured, the treated waste gas can be directly discharged into the air, and the working environment of operators is ensured; the waste gas collecting device 1 adopts a mode that a waste gas recovery cover 11 of the die-casting machine and a waste gas recovery cover 12 of the melting furnace are matched, the waste gas recovery cover 11 of the die-casting machine is used for recovering waste gas generated by the die-casting machine, the waste gas recovery cover 12 of the melting furnace is used for recovering waste gas generated by the melting furnace, different structural designs are carried out by combining different working conditions, the convenience of work is ensured while the waste gas generated in the all-dimensional die-casting process is recovered, and the working environment and the working efficiency of a die-casting operator are improved; adopt branch pipeline 21 and conveying fan 22 cooperation simultaneously, force to air exhaust to die casting machine and melting furnace, make and keep the negative pressure in the waste gas collection device 1, guaranteed that the waste gas that die casting machine and melting furnace produced is whole to be discharged, avoided because waste gas collection device 1 seals not tight and leads to waste gas to leak, guaranteed exhaust-gas treatment's effect.
While the foregoing specification illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. The utility model provides an exhaust treatment device of die-casting, includes exhaust gas collecting device (1), exhaust gas conveying device (2) and exhaust treatment device (3), and exhaust gas collecting device (1) is connected with exhaust gas conveying device (2), and the other end and the exhaust treatment device (3) of exhaust gas conveying device (2) are connected, its characterized in that: exhaust treatment device (3) are including absorbing device (31), do wet separator (32), filter equipment (33), light oxygen catalytic unit (34) and exhaust apparatus (35), absorbing device (31) are connected with exhaust gas conveyor (2), the other end and the dry wet separator (32) fixed connection of absorbing device (31), the other end and the filter equipment (33) of dry wet separator (32) are connected, the other end and the light oxygen catalytic unit (34) of filter equipment (33) are connected, the other end and the exhaust apparatus (35) of light oxygen catalytic unit (34) are connected.
2. The die-cast exhaust gas treatment device according to claim 1, wherein: the waste gas conveying device (2) is connected with one side of the upper end of the absorption device (31), and the dry-wet separation device (32) is located on the other side of the upper end of the absorption device (31).
3. The die-cast exhaust gas treatment device according to claim 2, wherein: the absorption device (31) comprises an adsorption tower (311) and a liquid circulation device (312), wherein the liquid circulation device (312) penetrates through the inside and the outside of the adsorption tower (311) and is fixedly connected with the adsorption tower (311).
4. A die-cast exhaust gas treatment device as set forth in claim 3, wherein: the adsorption tower (311) is a rotary adsorption tower.
5. The die-cast exhaust gas treatment device according to claim 1, wherein: the filter device (33) is an activated carbon filter device.
6. The die-cast exhaust gas treatment device according to claim 1, wherein: waste gas collection device (1) includes die casting machine waste gas recovery cover (11) and melting furnace waste gas recovery cover (12), die casting machine waste gas recovery cover (11) is located the upper end of die casting machine, melting furnace waste gas recovery cover (12) is located the upper end of melting furnace, die casting machine waste gas recovery cover (11) one end is connected with the one end of melting furnace waste gas recovery cover (12).
7. The die-cast exhaust gas treatment device according to claim 1, wherein: the waste gas conveying device (2) comprises branch pipelines (21), a conveying fan (22) and a main pipeline (24), one end of the main pipeline (24) is fixedly connected with the waste gas treatment device (3), the other end of the main pipeline is fixedly connected with the branch pipeline (21), the other end of the branch pipeline (21) is fixedly connected with the conveying fan (22), and the other end of the conveying fan (22) is fixedly connected with the waste gas collecting device (1).
8. The die-cast exhaust gas treatment device according to claim 7, wherein: the branch pipeline (21) is a hard pipe made of steel, the branch pipeline (21) comprises two bends, and the two bends are located on two mutually perpendicular planes.
9. The die-cast exhaust gas treatment device according to claim 7, wherein: the waste gas conveying device (2) further comprises a valve (23), wherein the valve (23) is located between the branch pipeline (21) and the main pipeline (24), one end of the valve is fixedly connected with the branch pipeline (21), and the other end of the valve is connected with the main pipeline (24).
10. The die-cast exhaust gas treatment device according to claim 7, wherein: the conveying fan (22) is a high-temperature resistant fan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920557361.4U CN210145843U (en) | 2019-04-23 | 2019-04-23 | Waste gas treatment device of die-casting |
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| CN201920557361.4U CN210145843U (en) | 2019-04-23 | 2019-04-23 | Waste gas treatment device of die-casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024845A (en) * | 2020-08-26 | 2020-12-04 | 全叶琼 | Water pump shell production equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024845A (en) * | 2020-08-26 | 2020-12-04 | 全叶琼 | Water pump shell production equipment |
| CN112024845B (en) * | 2020-08-26 | 2021-12-28 | 江苏河海给排水成套设备有限公司 | Water pump shell production equipment |
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