CN102179116B - Smoke dedusting device provided with powder-adding device and used for pouring section and cooling section of resin-bonded sand mold - Google Patents
Smoke dedusting device provided with powder-adding device and used for pouring section and cooling section of resin-bonded sand mold Download PDFInfo
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- CN102179116B CN102179116B CN 201110115310 CN201110115310A CN102179116B CN 102179116 B CN102179116 B CN 102179116B CN 201110115310 CN201110115310 CN 201110115310 CN 201110115310 A CN201110115310 A CN 201110115310A CN 102179116 B CN102179116 B CN 102179116B
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Abstract
The invention relates to a smoke dedusting device provided with a powder-adding device and used for a pouring section and a cooling section of resin-bonded sand mold in the field of environmental protection. An outlet end of a powder hopper is connected with an inlet end of a spiral conveyer, a variable frequency motor is connected to the spiral conveyor, an outlet end of the spiral conveyer is connected to the middle section of a powder spraying pipe through a pipeline, an inlet end of the powder spraying pipe is connected with a high-pressure fan, an outlet end of the powder spraying pipe is connected to a main pipeline, an outlet end of the main pipeline is connected with an inlet end of a bag type deduster, a smoke outlet end of the bag type deduster is connected to an inlet end of a main fan through a pipeline, and an outlet end of the main fan is connected to an exhaust pipe. Due to the adoption of the smoke dedusting device, tetrahydrofuran powder dust in smoke can be effectively removed and service life of a filter bag of the bag type deduster can be greatly prolonged.
Description
Technical field
The present invention relates to field of Environment Protection, especially is that casting industry a kind of has the phenolic sand modeling pouring of powder adding device, the fume dust remover of cooling section.
Background technology
Along with development and the raising of casting technique, China's casting industry extensively adopts self-hardening furan resin, phenolic resins sand molding, and this has not only shortened the production cycle, has improved production efficiency, but also has improved the presentation quality of foundry goods.But, sand mo(u)ld behind the phenolic sand molding is when cast and cooling, dead head at sand mo(u)ld can give out dense flue gas, because being subjected to the barbecue of high temperature liquid iron, exhaust gas components not only has flue dust and carbon monoxide, and produce simultaneously the larger resin of a kind of ratio of viscosities performance thing---oxolane (its viscosity can reach 30mPa.s in the time of 20 ℃), it and flue gas mix and can produce the very strong and inflammable greasy composition granule of black of viscosity, be easy to be bonded on the filter bag of the tube wall of dust removal by ventilation pipeline and sack cleaner, time one, the long resistance of the filter bag that makes increased, until stop up, cause the filter bag filtering function to lose efficacy, have a strong impact on dust removing effects.So, present domestic casting industry is on the phenolic sand molding production line, the flue gas of all cast sections and cooling section generally all adopts blower fan in line, deduster is not set, the consequence of doing like this is that discharging can't be up to standard, the smoke contamination atmosphere, and the cast, the concentration of emission limit value of cooling section of newly-built enterprise of regulation is 30mg/m in " State Standard of the People's Republic of China-foundary industry atmosphere pollutants emission standards " that be about to promulgate
3Reach this requirement, must administer the flue dust of casting and pouring, cooling section, could discharge after up to standard, also just must solve resin performance thing---the technical barrier of oxolane dust bonding filter bag.
Summary of the invention
The purpose of this invention is to provide and a kind ofly effectively remove oxolane dust in the flue gas, make the flue gas of the discharging phenolic sand modeling pouring with powder adding device up to standard, the fume dust remover of cooling section.
According to technical scheme provided by the invention, described phenolic sand modeling pouring with powder adding device, the fume dust remover of cooling section, it comprises sack cleaner, trunk line, discharge tube, high pressure positive blower, powder bucket, variable-frequency motor, auger conveyor, main air blower, with aiutage, the entrance point of the outlet termination auger conveyor of powder bucket, auger conveyor is connected with variable-frequency motor, the port of export of auger conveyor is by the stage casing of pipeline access discharge tube, import termination high pressure positive blower at discharge tube, the port of export access trunk line of discharge tube, the port of export of trunk line and the entrance point of sack cleaner join, the smoke outlet of sack cleaner is by the entrance point of pipeline access main air blower, and the port of export of main air blower accesses aiutage.
Be wrapped with heat-insulation layer at trunk line.Shell at sack cleaner is enclosed with heat-insulation layer.
The present invention can effectively remove the oxolane dust in the flue gas, also can greatly prolong the service life of bag-type duster filtering bag.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: this has the phenolic sand modeling pouring of powder adding device, the fume dust remover of cooling section, it comprises sack cleaner 1, trunk line 2, discharge tube 3, high pressure positive blower 4, powder bucket 5, variable-frequency motor 6, auger conveyor 7, main air blower 8 and aiutage 9, the entrance point of the outlet termination auger conveyor 7 of powder bucket 5, auger conveyor 7 is connected with variable-frequency motor 6, the port of export of auger conveyor 7 is by the stage casing of pipeline access discharge tube 3, import termination high pressure positive blower 4 at discharge tube 3, the port of export access trunk line 2 of discharge tube 3, the entrance point of the port of export of trunk line 2 and sack cleaner 1 joins, the smoke outlet of sack cleaner 1 is by the entrance point of pipeline access main air blower 8, and the port of export of main air blower 8 accesses aiutage 9.
Be wrapped with heat-insulation layer at trunk line 2.Shell at sack cleaner 1 is enclosed with heat-insulation layer.。
Process route is during device busy of the present invention:
After this dust arrester is completed; when the filter bag of sack cleaner 1 still belongs to the cleaning filtrate; at first a certain amount of talcum powder is added people's powder bucket 5; then open variable-frequency motor 6 and the high pressure positive blower 4 of main air blower 8 and auger conveyor 7; and open variable-frequency motor 6 and by auger conveyor 7 talcum powder is sent into discharge tube 3; under the twitch of the winding-up of high pressure positive blower 4 and main air blower 8, enter sack cleaner 1, and be adsorbed on the filter bag surface of sack cleaner 1, form the lubricated protective layer of one deck.Its effect is that flue dust reduces flue dust to the bonding of filter bag to the direct contact of filter bag when preventing operating mode.
Flue dust, the resin volatile matter of cast section and cooling section are the very strong oil smoke dust of viscosity when operating mode, under the twitch of main air blower 8, enter sack cleaner 1 at trunk line 2 do Brownian movement.High pressure positive blower 4, powder bucket 5, variable-frequency motor 6 spray into a certain amount of agstone with the powder adding device that auger conveyor 7 consists of to trunk line 2 at this moment, in trunk line 2, mix with flue dust, when the suspension grit is close to each other, can inhale each other and agglomerate into bulky grain (have absorption affinity between the powder because of set, be called the adhesive force of dust) and enter together sack cleaner 1.Because the unexpected attenuating of gas flow rate, dust granules loses suspending power, and dust granules can in the lower box sedimentation of sack cleaner 1, reduce grit to contact and the bonding of filter bag.It is emptying by main air blower 8 and aiutage 9 to pick out flue gas from sack cleaner 1.
But because the oxolane of wandering about as a refugee in the flue dust, its viscosity is very strong, can reach 30 ~ 40 mPa.s(milli pascal second at 20 ℃ Celsius), but the increase along with temperature, viscosity can descend, so when operating mode, preferably adopt burner for heating and water back to the gas-heated in trunk line 2 and the sack cleaner 1, simultaneously the shell of trunk line 2 and sack cleaner 1 is incubated, make its temperature remain on proper temperature Celsius, this moment, the viscosity of flue dust can be reduced to 15 ~ 20mPa.s(milli pascal second greatly).
Claims (3)
1. phenolic sand modeling pouring with powder adding device, the fume dust remover of cooling section, it is characterized in that: it comprises sack cleaner (1), trunk line (2), discharge tube (3), high pressure positive blower (4), powder bucket (5), variable-frequency motor (6), auger conveyor (7), main air blower (8), with aiutage (9), the entrance point of the outlet termination auger conveyor (7) of powder bucket (5), auger conveyor (7) is connected with variable-frequency motor (6), the port of export of auger conveyor (7) accesses the stage casing of discharge tube (3) by pipeline, import termination high pressure positive blower (4) at discharge tube (3), the port of export access trunk line (2) of discharge tube (3), the entrance point of the port of export of trunk line (2) and sack cleaner (1) joins, the smoke outlet of sack cleaner (1) accesses the entrance point of main air blower (8) by pipeline, the port of export access aiutage (9) of main air blower (8).
2. have as claimed in claim 1 the phenolic sand modeling pouring of powder adding device, the fume dust remover of cooling section, it is characterized in that: be wrapped with heat-insulation layer at trunk line (2).
3. have as claimed in claim 1 the phenolic sand modeling pouring of powder adding device, the fume dust remover of cooling section, it is characterized in that: the shell at sack cleaner (1) is enclosed with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110115310 CN102179116B (en) | 2011-05-05 | 2011-05-05 | Smoke dedusting device provided with powder-adding device and used for pouring section and cooling section of resin-bonded sand mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110115310 CN102179116B (en) | 2011-05-05 | 2011-05-05 | Smoke dedusting device provided with powder-adding device and used for pouring section and cooling section of resin-bonded sand mold |
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| Publication Number | Publication Date |
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| CN102179116A CN102179116A (en) | 2011-09-14 |
| CN102179116B true CN102179116B (en) | 2013-04-10 |
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| CN 201110115310 Active CN102179116B (en) | 2011-05-05 | 2011-05-05 | Smoke dedusting device provided with powder-adding device and used for pouring section and cooling section of resin-bonded sand mold |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106914095A (en) * | 2015-12-28 | 2017-07-04 | 无锡红旗除尘设备有限公司 | The live harmful smoke purifying treatment method of resin sand casting |
| CN106914099A (en) * | 2015-12-28 | 2017-07-04 | 无锡红旗除尘设备有限公司 | Can on-line regeneration absorption material thermoplastic resin sand coremaking exhaust gas purifying method |
| CN106914069A (en) * | 2015-12-28 | 2017-07-04 | 无锡红旗除尘设备有限公司 | Can on-line regeneration absorption material the live harmful smoke purification method of resin sand casting |
| CN106914085A (en) * | 2015-12-28 | 2017-07-04 | 无锡红旗除尘设备有限公司 | Thermoplastic resin sand coremaking method for purifying and processing waste gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001029724A (en) * | 1999-07-21 | 2001-02-06 | Hashimoto Kaihatsu Kogyo:Kk | Smoke dust collecting device |
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| CN102179116A (en) | 2011-09-14 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Smoke dedusting device provided with powder-adding device and used for pouring section and cooling section of resin-bonded sand mold Effective date of registration: 20131030 Granted publication date: 20130410 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Xizhang Environment Protection Equipment Co., Ltd. Registration number: 2013990000798 |
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Date of cancellation: 20170105 Granted publication date: 20130410 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Xizhang Environment Protection Equipment Co., Ltd. Registration number: 2013990000798 |
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