CN103350189A - Method and equipment for drying and cooling foundry waste sand - Google Patents
Method and equipment for drying and cooling foundry waste sand Download PDFInfo
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- CN103350189A CN103350189A CN2013102813242A CN201310281324A CN103350189A CN 103350189 A CN103350189 A CN 103350189A CN 2013102813242 A CN2013102813242 A CN 2013102813242A CN 201310281324 A CN201310281324 A CN 201310281324A CN 103350189 A CN103350189 A CN 103350189A
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- 239000004576 sand Substances 0.000 title claims abstract description 73
- 238000001816 cooling Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002699 waste material Substances 0.000 title claims abstract description 19
- 238000001035 drying Methods 0.000 title claims abstract description 15
- 239000002912 waste gas Substances 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000009835 boiling Methods 0.000 claims description 21
- 239000000498 cooling water Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 241000219000 Populus Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a method and equipment for drying and cooling foundry waste sand. The method comprises the following steps: wet sand coming from a cleaning process is shoveled to a belt conveyor by a forklift, passes through a hopper and enters into a rotary drying device; hot air is led to the rotary drying device through a hot air pipe by a hot-blast stove, so that the wet sand is dried through heating; hot sand passes through a hot sand outlet pipe and enters into a fluidized bed furnace, and is dried through cooling during the fluidizing process by cold air to obtain dry sand; the dry sand is conveyed in a foundry for use, and waste gas enters into a dust collector from a waste gas outlet pipe. The method, disclosed by the invention, can enable the cleaned sand to pass through the hot-blast stove, the rotary drying device and the fluidized bed furnace, and evaporates and cools the hot sand, thereby reusing the foundry waste sand, and reducing the environment pollution due to waste sand discharge. The equipment is low in processing cost, simple in structure, easy to manufacture, convenient to mount and use, and easy for popularization and application.
Description
Technical field
The present invention relates to a kind of method and apparatus of recycling cast waste sand process, specifically the method and apparatus of cast waste sand through heating and seethe with excitement and cool off after cleaning.
Background technology
Mostly the boiling cooling bed of selling in the market is simple air blast boiling cooling, connects ventilated box with air blast, and drum advances natural wind and carries out the heat exchange cooling.These ebullated bed energy consumptions are high, and rate of heat exchange is low, and cooling effect is poor, are difficult to promote the use of, and especially summer, room temperature was high, can't use at all.So research and develop a kind of simple in structurely, easy to manufacture, easy to install, water and wind carry out heat exchange with material simultaneously, and energy consumption is low, and rate of heat exchange is high, and the cooling bed of good cooling results is necessary.
The magnetic separator of introducing on the document is as follows:
Chinese patent, application (patent) number: the CN201120345454.4 title: the alkali cellulose cooler applying date: 2011.09.15 apply for (patent right) people: the Xingda Tangshan Sanyou Group Chemical Fiber Co address: (design) people: Yu Shukui is invented in the Nanbao Development District ,Tangshan City ,Hebei Province; Wang Peirong; Zhang Lijun; Liu Fuan; Yu Hanjiang; Liu Yong; Diao Minrui; Yin Zhiquan; Zhu Zhenwei; Zheng Xiumei; Poplar protects summary: the alkali that a kind of viscose glue industry is used fine cooling device, specifically a kind of alkali cellulose cooler.It frame be divided into two-layer up and down, wind assembling set is installed in the top of upper strata frame, in this wind assembling set deduster is installed, be provided with two openings in the wind assembling set, the lower end of an opening is equipped with cooling bed, inlet box successively, this inlet box is connected between the air outlet of cooling bed import and blower fan, and another open lower end of wind assembling set is mounting heat exchanger, dehydrater, air-intaking box successively, and this air-intaking box links to each other with the air inlet of blower fan.Each parts of the present utility model are vertically assembled, and rationally distributed floor space is few, and each part dimension strengthens, and production capacity improves.Alkali cellulose is the boiling shape and contacts with cold wind, and the material cooling is abundant, good cooling results.Cold wind recycles, and the fine dust of alkali is closed in the airtight circulatory system, and is free from environmental pollution.Operation serialization, automation.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, easy to manufacture, easy to install, water and wind carry out heat exchange with material simultaneously, energy consumption is low, and rate of heat exchange is high, the method and apparatus of the cast waste sand of good cooling results through heating and seethe with excitement and cool off after cleaning.
The present invention is achieved in that
Cast waste sand of the present invention method dry, cooling is as follows:
The damp sand that comes from cleaning workshop section shovels on the belt conveyor with forklift, and damp sand enters tumble-dryers through hopper, and hot-blast stove leads to tumble-dryers with hot blast by warm-air pipe, so that damp sand is subjected to heated drying; Hot sand enters fluidized bed furnace through overheated sand outlet, and cold wind plays boiling with hot sand blast, and further cool drying obtains dry sand and is transported to foundry's use; The waste gas that produces enters deduster by waste gas outlet pipe.
The dry cooling device of the cast waste sand that above-described method adopts, comprise belt conveyor, hot-blast stove, tumble-dryers and fluidized bed furnace, described hot-blast stove provides hot blast to tumble-dryers, and described tumble-dryers is the sand after cleaning up to be heated make the device of moisture evaporation; Described fluidized bed furnace is sand cooling and the further dry device after adopting the boiling principle to heat, the connected mode of equipment is as follows: belt conveyor one end is connected to the top of tumble-dryers hopper, sand is put in the tumble-dryers, the hot-blast stove outlet is connected to tumble-dryers, divides evaporation with heated feed water in the tumble-dryers; The hot sand of tumble-dryers outlet enters fluidized bed furnace by carrier pipe, is provided with water-cooled system and air-cooled system in the fluidized bed furnace, and hot sand is cooled off under wallop.
Described hot-blast stove adopts combustion gas or fuel oil or coal as raw material, and fuel enters in the stove from fuel inlet tube and burns, and the hot-blast stove bottom is provided with burner hearth, and air blast A is blown into wind from the hot-blast stove bottom, hot blast is led to tumble-dryers by warm-air pipe.
Described fluidized bed furnace is made of water-cooled system and air-cooled system, and air-cooled system is at the boiling lower portion of furnace body, and blower B is communicated with air-cooled dividing plate by airduct, has several eyes of wind on the air-cooled dividing plate; The water-cooled system is installed in the top of air-cooled system, comprise cooling water tank, water inlet pipe, outlet pipe and cooling water coil, the cooling water tank outlet connects cooling water coil, cooling water enters from the water inlet pipe of fluidized bed furnace external body, hot water is drawn from outlet pipe, hot sand enters from the hot sand outlet of boiling upper of furnace body, and the cold dry sand behind the fluidized drying is derived from the cooling sand outlet of boiling body of heater one side, and waste gas is discharged from waste gas outlet pipe; Air blast is communicated with ventilation panel by airduct.
The invention has the beneficial effects as follows:
1, cast waste sand of the present invention method dry, cooling can be with the sand after cleaning up through hot-blast stove, tumble-dryers and fluidized bed furnace, sand after cleaning up heated make moisture evaporation, and hot sand cools off under wallop, thereby use cast waste sand to reuse, save cost, alleviated the environmental pollution that causes because of the antiquated sand discharging.
2, the present invention is simple in structure, and is easy to manufacture, easy to install, and water and wind carry out heat exchange with material simultaneously, and energy consumption is low, and rate of heat exchange is high, and good cooling results can also be removed the minute dust in the sand by the air outlet of casing.
Description of drawings
Fig. 1 is that cast waste sand of the present invention is dry, the method and apparatus schematic diagram of cooling.
Fig. 2 is that cast waste sand of the present invention is dry, the method and apparatus internal structure schematic diagram of cooling.
Sequence number and title among the figure:
1, forklift, 2, belt conveyor, 3, hopper, 4, tumble-dryers, 5, warm-air pipe, 6, hot-blast stove, 7, burner hearth, 8, air blast A, 9, fuel inlet tube, 10, hot sand outlet, 11, the water-cooled comb, 12, ventilation panel, 13, the boiling body of heater, 14, waste gas outlet pipe, 15, blower B, 16, cooling sand outlet, 17, water inlet pipe, 18, outlet pipe, 19, cooling water tank, 20, the eye of wind.
The specific embodiment
Embodiment:
The damp sand that will come from cleaning workshop section, to belt conveyor 2, damp sand enters tumble-dryers 4 through hopper 3 with forklift 1, shovel, and hot-blast stove 6 leads to tumble-dryers 4 with hot blast by warm-air pipe 5, so that damp sand is subjected to heated drying; Hot sand enters boiling body of heater 13 through overheated sand outlet 10,, is obtained dry sand and is transported to foundry's use cool drying in the hot sand boiling process by cold wind; The waste gas that produces enters deduster by waste gas outlet pipe 14; Described hot-blast stove adopts combustion gas or fuel oil or coal as raw material, and fuel enters in the stove from fuel inlet tube 9 and burns, and the hot-blast stove bottom is provided with burner hearth 7, and air blast A 8 is blown into wind from the hot-blast stove bottom, hot blast is led to tumble-dryers 4 by warm-air pipe 5; Described boiling body of heater is made of water-cooled system and air-cooled system, and air-cooled system is in boiling body of heater 13 bottoms, and blower B 15 is communicated with air-cooled dividing plate 12 by airduct, has several eyes of wind 20 on the air-cooled dividing plate 12; The water-cooled system is installed in the top of air-cooled system, comprise cooling water tank 19, water inlet pipe 17, outlet pipe 18 and cooling water coil 11, cooling water tank 19 outlets connect cooling water coil 11, cooling water enters from the water inlet pipe 17 of boiling body of heater 13 outsides, hot water is drawn from outlet pipe 18, hot sand enters from the hot sand outlet 10 on boiling body of heater 13 tops, and the cold dry sand behind the fluidized drying is derived from the cooling sand outlet 16 of boiling body of heater 13 1 sides, and waste gas is discharged from waste gas outlet pipe 14; Air blast 15 is communicated with ventilation panel 12 by airduct.
Claims (4)
1. the method for a cast waste sand drying, cooling, it is characterized in that: the damp sand that will come from cleaning workshop section, arrive on the belt conveyor (2) with forklift (1) shovel, damp sand enters tumble-dryers (4) through hopper (3), hot-blast stove (6) leads to tumble-dryers (4) with hot blast by warm-air pipe (5), so that damp sand is subjected to heated drying; Hot sand enters fluidized bed furnace through overheated sand outlet (10), and cold wind plays boiling with hot sand blast, and further cool drying obtains dry sand and is transported to foundry's use; The waste gas that produces enters deduster by waste gas outlet pipe (14).
2. the method for dry, the cooling of cast waste sand according to claim 1, it is characterized in that: the dry cooling device of the cast waste sand that adopts, comprise belt conveyor, hot-blast stove, tumble-dryers and fluidized bed furnace, the connected mode of equipment is as follows: belt conveyor one end is connected to the top of tumble-dryers hopper, and the hot-blast stove outlet is connected to tumble-dryers; The hot sand of tumble-dryers outlet enters fluidized bed furnace by carrier pipe, is provided with water-cooled system and air-cooled system in the fluidized bed furnace.
3. the method for dry, the cooling of cast waste sand according to claim 1, it is characterized in that: described hot-blast stove adopts combustion gas or fuel oil or coal as raw material, fuel enters in the stove from fuel inlet tube (9) and burns, the hot-blast stove bottom is provided with burner hearth (7), air blast A(8) wind is blown into from hearth of hot-blast stove (7) bottom, hot blast is led to tumble-dryers (4) by warm-air pipe (5).
4. the method for dry, the cooling of cast waste sand according to claim 1, it is characterized in that: described fluidized bed furnace is made of water-cooled system and air-cooled system, air-cooled system is in boiling body of heater (13) bottom, blower B (15) is communicated with air-cooled dividing plate (12) by airduct, has several eyes of wind (20) on the air-cooled dividing plate (12); The water-cooled system is installed in the top of air-cooled system, comprise cooling water tank (19), water inlet pipe (17), outlet pipe (18) and cooling water coil (11), cooling water tank (19) outlet connects cooling water coil (11), cooling water enters from the outside water inlet pipe (17) of boiling body of heater (13), hot water is drawn from outlet pipe (18), hot sand enters from the hot sand outlet (10) on boiling body of heater (13) top, cold dry sand behind the fluidized drying is derived from the cooling sand outlet (16) of boiling body of heater (13) one sides, and waste gas is discharged from waste gas outlet pipe (14); Air blast (15) is communicated with ventilation panel (12) by airduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310281324.2A CN103350189B (en) | 2013-07-05 | 2013-07-05 | The method of cast waste sand drying, cooling and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310281324.2A CN103350189B (en) | 2013-07-05 | 2013-07-05 | The method of cast waste sand drying, cooling and equipment |
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| CN103350189A true CN103350189A (en) | 2013-10-16 |
| CN103350189B CN103350189B (en) | 2016-06-01 |
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| CN201310281324.2A Active CN103350189B (en) | 2013-07-05 | 2013-07-05 | The method of cast waste sand drying, cooling and equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759586A (en) * | 2015-03-17 | 2015-07-08 | 兰文官 | Heat-preservation sand bin of used casting sand roasting furnace |
| CN105328115A (en) * | 2015-10-19 | 2016-02-17 | 戴伟平 | Reclaiming method for cast waste sand hot plasmas |
| CN109759541A (en) * | 2019-03-19 | 2019-05-17 | 芜湖诚拓汽车部件股份有限公司 | High Precision Automatic moulding dehumidification system and its control method |
| CN111811215A (en) * | 2020-07-21 | 2020-10-23 | 楼俊 | Casting sand progressive rapid drying equipment based on iron parts |
| CN114589289A (en) * | 2022-05-11 | 2022-06-07 | 江苏双梦源精密成型科技有限公司 | Casting sand drying device with detection function for precision casting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902327A (en) * | 1958-01-30 | 1962-08-01 | Fischer Ag Georg | Improvements in or relating to the cooling of moulding sand |
| WO1993010926A1 (en) * | 1991-12-06 | 1993-06-10 | Gmd Engineered Systems, Inc. | Method for controlling the oxidation and calcination of waste foundry sands |
| CN201470820U (en) * | 2009-06-08 | 2010-05-19 | 张培根 | Novel vertical hot sand boiling and cooling sorter |
| CN201906786U (en) * | 2011-01-20 | 2011-07-27 | 苏良磁 | Casting hot sand treatment system capable of saving energy and reducing emission |
| CN202146968U (en) * | 2011-06-29 | 2012-02-22 | 漯河市汇达铸造机械有限公司 | Shower barrel cooling crushing screen machine |
-
2013
- 2013-07-05 CN CN201310281324.2A patent/CN103350189B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB902327A (en) * | 1958-01-30 | 1962-08-01 | Fischer Ag Georg | Improvements in or relating to the cooling of moulding sand |
| WO1993010926A1 (en) * | 1991-12-06 | 1993-06-10 | Gmd Engineered Systems, Inc. | Method for controlling the oxidation and calcination of waste foundry sands |
| CN201470820U (en) * | 2009-06-08 | 2010-05-19 | 张培根 | Novel vertical hot sand boiling and cooling sorter |
| CN201906786U (en) * | 2011-01-20 | 2011-07-27 | 苏良磁 | Casting hot sand treatment system capable of saving energy and reducing emission |
| CN202146968U (en) * | 2011-06-29 | 2012-02-22 | 漯河市汇达铸造机械有限公司 | Shower barrel cooling crushing screen machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759586A (en) * | 2015-03-17 | 2015-07-08 | 兰文官 | Heat-preservation sand bin of used casting sand roasting furnace |
| CN105328115A (en) * | 2015-10-19 | 2016-02-17 | 戴伟平 | Reclaiming method for cast waste sand hot plasmas |
| CN105328115B (en) * | 2015-10-19 | 2017-09-01 | 戴伟平 | The renovation process of cast waste sand hot plasma |
| CN109759541A (en) * | 2019-03-19 | 2019-05-17 | 芜湖诚拓汽车部件股份有限公司 | High Precision Automatic moulding dehumidification system and its control method |
| CN111811215A (en) * | 2020-07-21 | 2020-10-23 | 楼俊 | Casting sand progressive rapid drying equipment based on iron parts |
| CN111811215B (en) * | 2020-07-21 | 2021-07-13 | 双峰县建设机械有限责任公司 | Casting sand progressive rapid drying equipment based on iron parts |
| CN114589289A (en) * | 2022-05-11 | 2022-06-07 | 江苏双梦源精密成型科技有限公司 | Casting sand drying device with detection function for precision casting |
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| Publication number | Publication date |
|---|---|
| CN103350189B (en) | 2016-06-01 |
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Address after: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park on the north side of Po Tang casting center Applicant after: Guangxi orchid Resource Recycling Co., Ltd. Address before: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park casting center Applicant before: Guangxi Yulin YC Industrial Chemical Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: GUANGXI YULIN YC INDUSTRIAL CHEMICAL CO., LTD. TO: GUANGXI LANKE RESOURCES RECYCLING CO., LTD. |
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Owner name: YULIN LANKE CASTING ENVIRONMENTAL PROTECTION EQUIP Free format text: FORMER OWNER: GUANGXI LANKE RESOURCES RECYCLING CO., LTD. Effective date: 20150303 |
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Effective date of registration: 20150303 Address after: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park Business Building Room 501 Applicant after: YULIN LANKE CAST ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Address before: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park on the north side of Po Tang casting center Applicant before: Guangxi orchid Resource Recycling Co., Ltd. |
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Effective date of registration: 20160804 Address after: 201204, J210, building 4, building 298, lotus road, Shanghai, Pudong New Area Patentee after: Shanghai Shengquan orchid environmental protection equipment Co. Address before: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park Business Building Room 501 Patentee before: YULIN LANKE CAST ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. |
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Effective date of registration: 20171129 Address after: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park Business Building Room 501 Patentee after: YULIN LANKE CAST ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Address before: 201204, J210, building 4, building 298, lotus road, Shanghai, Pudong New Area Patentee before: Shanghai Shengquan orchid environmental protection equipment Co. |
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Effective date of registration: 20180111 Address after: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park on the north side of Po Tang casting center Patentee after: Guangxi orchid Resource Recycling Co., Ltd. Address before: 537005 the Guangxi Zhuang Autonomous Region Yulin Yuchai Industrial Park Business Building Room 501 Patentee before: YULIN LANKE CAST ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. |
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Denomination of invention: Method and equipment for drying and cooling casting waste sand Effective date of registration: 20220510 Granted publication date: 20160601 Pledgee: Bank of Guilin Co.,Ltd. Yulin Branch Pledgor: GUANGXI LANCO RESOURCES RECYCLING CO.,LTD. Registration number: Y2022450000069 |