CN101862808B - Waste molding sand or core sand regenerating equipment - Google Patents
Waste molding sand or core sand regenerating equipment Download PDFInfo
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- CN101862808B CN101862808B CN2010101972375A CN201010197237A CN101862808B CN 101862808 B CN101862808 B CN 101862808B CN 2010101972375 A CN2010101972375 A CN 2010101972375A CN 201010197237 A CN201010197237 A CN 201010197237A CN 101862808 B CN101862808 B CN 101862808B
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Abstract
The invention relates to waste molding (core) sand regenerating equipment. The regenerating equipment comprises a fluidizing roasting furnace, wherein the fluidizing roasting furnace is provided with a roasting feeding hole, a roasting discharging hole, an air inlet passage and an air outlet passage. The regenerating equipment is characterized in that the waste molding sand or core sand regenerating equipment also comprises a sand separating heating device; the sand separating heating device is arranged above the fluidizing roasting furnace and comprises a sand separating heating chamber, a sand separating heating beam and a sand separating cone, wherein the sand separating heating beam and the sand separating cone are arranged in the sand separating heating chamber; the top and the bottom of the sand separating heating chamber are provided with openings; the sand separating cone is arranged on the opening at the top of the sand separating heating chamber and fixed at the top of the sand separating heating beam; a sand discharging hopper is arranged above the sand separating heating chamber, and communicated with the sand separating cone; and the opening at the bottom of the sand separating heating chamber is communicated with the roasting material inlet of the fluidizing roasting furnace. The invention has skillful and reasonable structure, skillfully combines a convection heat exchange technology and a boiling and fluidizing heating technology, sufficiently utilizes the heat energy, and enhances the heat efficiency and the treating capability of the equipment.
Description
Technical field
The invention belongs to casting technology field, specifically relate to a kind of waste molding sand or core sand regenerating equipment.
Background technology
In various sand mold sand or core-sand moulding casting technique; all can produce a large amount of waste and old molding sand or core sand; the reclaiming utilization of waste and old type (core) sand; be related to three aspects such as casting cost, resources conservation and environmental protection; " developing a circular economy; strengthen the environment protection " proposed in China's Eleventh Five-Year Plan especially; " build a resource-conserving and environment-friendly society "; therefore, the regeneration of the waste and old type of casting technique (core) sand has extremely important environmental protection and economic worth.
Waste and old type (core) sand complicated component, kind is various, in order to improve the utilization ratio again of waste and old type (core) sand, except that part can adopt traditional mechanical process regeneration, some waste and old type (core) sand (old sand that is produced as fat petrifying water glass sand and resin sand casting technique) must adopt thermal reclamation technology to make waste and old type (core) sand obtain reuse.
Along with the production domesticization of Chinese large-sized mechanized equipment, especially in industries such as generating, metallurgy, mine, chemical industry, boats and ships, the foundry goods single-piece weight of main equipment reaches hundreds of tons, and this just requires the regeneration treating capacity of waste and old type (core) sand to strengthen thereupon.The lower defective of existing waste and old type (core) the sand recycling equipment ubiquity thermal efficiency, and disposal ability is limited, and treatment effect is general.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, ingenious rational waste molding sand of a kind of structure or core sand regenerating equipment are provided, this reclaim equiment has improved device heat efficiency and disposal ability greatly with heat convection technology and ingenious combination of boiling fluidisation heating technique.
According to technical scheme provided by the invention: described waste molding sand or core sand regenerating equipment comprise fluo solid roaster, fluo solid roaster is provided with the roasting charging aperture, the roasting discharging opening, air intake passage and air-out passage, it is characterized in that: this reclaim equiment also comprises the sub-sand heater, the sub-sand heater is positioned at the fluo solid roaster top, the sub-sand heater comprises the sub-sand heating clamber and is installed in the sub-sand heating beam in the sub-sand heating clamber and divides abrasive cone, the top of sub-sand heating clamber and bottom opening, divide abrasive cone to be arranged on the top open part of sub-sand heating clamber and be fixed on sub-sand and heat on the top of beam, sub-sand heating clamber top is equipped with down sand hopper, and following sand hopper is connected with dividing abrasive cone; The bottom opening of sub-sand heating clamber is connected with the roasting charging aperture of fluo solid roaster.
As a further improvement on the present invention, described fluo solid roaster comprises body of heater and fluidisation blower fan, and body of heater is divided into the fluidising chamber on top and the combustion chamber of bottom, and fluidising chamber and combustion chamber are interconnected; Described roasting charging aperture is opened in fluidising chamber top, and the roasting charging aperture is connected with the bottom opening of sub-sand heating clamber, and the roasting charging aperture while is as the air-out passage of fluo solid roaster; The middle part of described fluidising chamber is equipped with fluidising chamber's heater, and the bottom in the fluidising chamber is provided with fluid bed; Offer fresh air inlet on the locular wall on top, combustion chamber as the fluo solid roaster air intake passage, this fresh air inlet is connected by the air outlet of blower fan exhaust passage with the fluidisation blower fan, the middle part of combustion chamber is equipped with the combustion chamber heater, and the roasting discharging opening is offered in the bottom of combustion chamber.
As a further improvement on the present invention, the open top of described sub-sand heating clamber is connected with smoke exhaust pipe, smoke exhaust pipe is divided into two branch roads, and one of them branch road directly is connected with deduster, and another branch road is connected by the air inlet of blower fan air inlet duct with the fluidisation blower fan.
As a further improvement on the present invention, the fluidisation temperature controller is installed in the described fluidising chamber, the fluidisation temperature controller links to each other with the fluidising chamber heater; The burning temperature controller is installed in the described combustion chamber, and the burning temperature controller links to each other with the combustion chamber heater.
As a further improvement on the present invention, described blower fan exhaust passage comprises fluidisation discharge, fluidisation smoke inlet pipe and fluidisation flue gas control valve; The fluidisation discharge is connected with fresh air inlet on the combustion chamber, and an end of fluidisation smoke inlet pipe is connected with the fluidisation discharge, and the other end of fluidisation smoke inlet pipe is connected with the air outlet of fluidisation blower fan through fluidisation flue gas control valve.
As a further improvement on the present invention, described blower fan air inlet duct comprises flue gas guiding tube, flue gas flow controller, cyclone dust removal air inlet pipe, cyclone dust collectors and fluidisation fan inleting pipe; Flue gas guiding tube one end is connected with smoke exhaust pipe, and the other end is connected with the air inlet of cyclone dust collectors through the flue gas flow controller by the cyclone dust removal air inlet pipe; The gas outlet of cyclone dust collectors is connected by the air inlet of fluidisation fan inleting pipe with the fluidisation blower fan, offers wild wind inlet on the fluidisation fan inleting pipe, and wild wind porch is equipped with fluidisation flue gas temperature-sensing valve.
As a further improvement on the present invention, the bottom of described combustion chamber is a pyramidal structure, and roasting discharging opening place is provided with and is used to control the sand temperature controller of temperature of shaking out, and the sand temperature controller links to each other with the combustion chamber heater.
As a further improvement on the present invention, the bottom of described minute abrasive cone offers the hole slot that passes through for type (core) sand; Described sub-sand heating beam is fixedly formed by the stack of multilayer orifice plate, also offers the hole slot that passes through for type (core) sand on the orifice plate.
The present invention compared with prior art, advantage is: with heat convection technology and ingenious combination of boiling fluidisation heating technique, should be in the thermal reclamation of waste and old type (core) sand, in the roaster high-temperature region, make full use of boiling fluidisation mode of heating, make waste and old type (core) sand obtain heat intensive, strengthened mutual collision in the high-temperature region, the antiquated sand pellicle peels off rapidly, finishes the regeneration of waste and old type (core) sand; At the roaster low-temperature space, main employing convection current and contact heat exchange, make waste and old type (core) sand from being preheating to heating step by step, waste and old type (core) sand and high-temperature flue gas obtain sufficient heat exchange in reverse flow, heat energy is fully utilized, flue gas loss is reduced to extremely low-level, has improved device heat efficiency and sand regeneration disposal ability.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment of the present invention.
Description of reference numerals: 1-fluo solid roaster, 2-sub-sand heater, sand hopper under the 3-, 4-divides abrasive cone, 5-sub-sand heating beam, the 6-smoke exhaust pipe, 7-sub-sand heating clamber, 8-fluidising chamber, 9-fluidisation temperature controller, the 10-fluid bed, 11-fluidising chamber heater, the 12-temperature controller that burns, 13-fluidisation discharge, 14-combustion chamber heater, 15-fluidisation smoke inlet pipe, 16-fluidisation fan inleting pipe, 17-flue gas guiding tube, 18-flue gas flow controller, 19-cyclone dust removal air inlet pipe, the 20-cyclone dust collectors, the wild wind inlet of 21-, 22-fluidisation flue gas temperature-sensing valve, 23-fluidisation flue gas control valve, 24-fluidisation blower fan, 25-sand temperature controller, 26-roasting discharging opening, the 27-combustion chamber, the 28-fresh air inlet, 29-roasting charging aperture.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure, the present invention mainly is made up of fluo solid roaster 1 and sub-sand heater 2.Fluo solid roaster 1 is provided with roasting charging aperture 29, roasting discharging opening 26, air intake passage and air-out passage; Sub-sand heater 2 is positioned at fluo solid roaster 1 top, sub-sand heater 2 comprises sub-sand heating clamber 7 and is installed in the sub-sand heating beam 5 in the sub-sand heating clamber 7 and divides abrasive cone 4, the bottom of described minute abrasive cone 4 offers the hole slot that passes through for type (core) sand, sub-sand heating beam 5 is fixedly formed by the stack of multilayer orifice plate, also offers the hole slot that passes through for type (core) sand on the orifice plate; The top of sub-sand heating clamber 7 and bottom opening divide abrasive cone 4 to be arranged on the top open part of sub-sand heating clamber 7 and are fixed on sub-sand and heat on the top of beam 5, and sub-sand heating clamber 7 tops are equipped with down sand hopper 3, and following sand hopper 3 is connected with dividing abrasive cone 4; The bottom opening of sub-sand heating clamber 7 is connected with the roasting charging aperture 29 of fluo solid roaster 1.
As shown in Figure 1, the fluo solid roaster 1 in the preferred embodiment mainly comprises body of heater and fluidisation blower fan 24, and body of heater is divided into the fluidising chamber 8 on top and the combustion chamber 27 of bottom, and fluidising chamber 8 and combustion chamber 27 are interconnected; Described roasting charging aperture 29 is opened in fluidising chamber 8 tops, and roasting charging aperture 29 is connected with the bottom opening of sub-sand heating clamber 7, and 29 whiles of roasting charging aperture are as the air-out passage of fluo solid roaster 1; The middle part of described fluidising chamber 8 is equipped with fluidising chamber's heater 11, and the bottom in the fluidising chamber 8 is provided with fluid bed 10; Offer fresh air inlet 28 on the locular wall on 27 tops, combustion chamber as fluo solid roaster 1 air intake passage, this fresh air inlet 28 is connected by the air outlet of blower fan exhaust passage with fluidisation blower fan 24, the middle part of combustion chamber 27 is equipped with combustion chamber heater 14, and roasting discharging opening 26 is offered in the bottom of combustion chamber 27.
As shown in Figure 1, in the described fluidising chamber 8 fluidisation temperature controller 9 is installed, fluidisation temperature controller 9 links to each other with fluidising chamber heater 11, is used to realize temperature auto control in the fluidising chamber 8, improves the utilization rate again of waste and old type (core) sand.Burning temperature controller 12 is installed in the described combustion chamber 27, and burning temperature controller 12 links to each other with combustion chamber heater 14, is used to realize temperature auto control in the combustion chamber 27, improves the utilization rate again of waste and old type (core) sand.The bottom of described combustion chamber 27 is a pyramidal structure, and roasting discharging opening 26 places are provided with sand temperature controller 25, and sand temperature controller 25 links to each other with combustion chamber heater 14, is used for controlling the temperature of shaking out.
In type (core) sand processing procedure, can discharge high-temperature flue gas, contain nuisance in these flue gases, if directly discharging can cause environmental pollution, so the flue gas of discharging need utilize deduster to handle.The open top of sub-sand heating clamber 7 of the present invention is connected with smoke exhaust pipe 6 (as shown in Figure 1), and smoke exhaust pipe 6 is communicated to deduster again.Described smoke exhaust pipe 6 is divided into two branch roads, and one of them branch road directly is connected with deduster, and another branch road then is connected by the air inlet of blower fan air inlet duct with fluidisation blower fan 24, to make full use of the participation heat energy in the flue gas.
As shown in Figure 1, described blower fan exhaust passage mainly is made up of fluidisation discharge 13, fluidisation smoke inlet pipe 15 and fluidisation flue gas control valve 23; Fluidisation discharge 13 is connected with fresh air inlet 28 on the combustion chamber 27, and an end of fluidisation smoke inlet pipe 15 is connected with fluidisation discharge 13, and the other end of fluidisation smoke inlet pipe 15 is connected with the air outlet of fluidisation blower fan 24 through fluidisation flue gas control valve 23.
As shown in Figure 1, described blower fan air inlet duct mainly is made up of flue gas guiding tube 17, flue gas flow controller 18, cyclone dust removal air inlet pipe 19, cyclone dust collectors 20 and fluidisation fan inleting pipe 16; Flue gas guiding tube 17 1 ends are connected with smoke exhaust pipe 6, and the other end is connected through the air inlet of flue gas flow controller 18 with cyclone dust collectors 20 by cyclone dust removal air inlet pipe 19; The gas outlet of cyclone dust collectors 20 is connected by the air inlet of fluidisation fan inleting pipe 16 with fluidisation blower fan 24, offer wild wind inlet 21 on the fluidisation fan inleting pipe 16, wild wind 21 places that enter the mouth are equipped with fluidisation flue gas temperature-sensing valve 22, when fluidisation blower fan 24 temperature are too high, wild wind inlet 21 is opened, and feeds cold wind with cool stream wind transmission machine 24.
The course of work of the present invention and operation principle are as follows:
Waste and old type (core) sand is added by following sand hopper 3 and divides abrasive cones 4, type (core) sand heats in the beam 5 via the sub-sand that minute abrasive cone 4 flows in the sub-sand heating clamber 7, type (core) sand carries out heat convection with the high-temperature flue gas that rises in sub-sand heating beam 5, enter in the fluidising chamber 8 from roaster import 29 then, carry out high temperature fluidized heating, force collision, friction, demoulding between sand grains, under the acting in conjunction of rising high-temperature flue gas and deduster negative pressure, dust and diaphragm are drawn body of heater, and reclaimed sand just draws off from the roasting discharging opening 26 of bottom of furnace body.High-temperature flue gas part in the processing procedure directly enters deduster through smoke exhaust pipe 6; Another part is through flue gas guiding tube 17, flue gas flow controller 18 and cyclone dust removal air inlet pipe 19 are introduced cyclone dust collectors 20, after dedusting, introduce fluidisation blower fan 24 by fluidisation fan inleting pipe 16, then through flue gas control valve 23, fluidisation smoke inlet pipe 15, fluidisation discharge 13 and fresh air inlet 28 enter in the combustion chamber 27, combustion chamber heater 14 is with the gas heating that feeds, the fluidisation thermal regeneration that is used for sand grains, the high-temperature flue gas that produces behind the fluidisation thermal regeneration is discharged via the heating of the sub-sand in the sub-sand heating clamber 7 beam 5, simultaneously waste and old type (core) sand that adds is carried out preheating, heating enters atmosphere through deduster then.The present invention has made full use of the high-temperature flue gas waste heat, has improved the thermal efficiency of entire equipment greatly, has reduced Fuel Consumption and production cost.
Claims (8)
1. waste molding sand or core sand regenerating equipment, comprise fluo solid roaster (1), fluo solid roaster (1) is provided with roasting charging aperture (29), roasting discharging opening (26), air intake passage and air-out passage, it is characterized in that: this reclaim equiment also comprises sub-sand heater (2), sub-sand heater (2) is positioned at fluo solid roaster (1) top, sub-sand heater (2) comprises sub-sand heating clamber (7) and is installed in the sub-sand heating beam (5) in the sub-sand heating clamber (7) and divides abrasive cone (4), the top and the bottom opening of sub-sand heating clamber (7), divide abrasive cone (4) to be arranged on the top open part of sub-sand heating clamber (7) and be fixed on sub-sand and heat on the top of beam (5), sub-sand heating clamber (7) top is equipped with down sand hopper (3), and following sand hopper (3) is connected with dividing abrasive cone (4); The bottom opening of sub-sand heating clamber (7) is connected with the roasting charging aperture (29) of fluo solid roaster (1).
2. waste molding sand as claimed in claim 1 or core sand regenerating equipment, it is characterized in that: described fluo solid roaster (1) comprises body of heater and fluidisation blower fan (24), body of heater is divided into the fluidising chamber (8) on top and the combustion chamber (27) of bottom, and fluidising chamber (8) and combustion chamber (27) are interconnected; Described roasting charging aperture (29) is opened in fluidising chamber (8) top, and roasting charging aperture (29) is connected with the bottom opening of sub-sand heating clamber (7), and roasting charging aperture (29) while is as the air-out passage of fluo solid roaster (1); The middle part of described fluidising chamber (8) is equipped with fluidising chamber's heater (11), and the bottom in the fluidising chamber (8) is provided with fluid bed (10); Offer fresh air inlet (28) on the locular wall on top, combustion chamber (27) as fluo solid roaster (1) air intake passage, this fresh air inlet (28) is connected by the air outlet of blower fan exhaust passage with fluidisation blower fan (24), the middle part of combustion chamber (27) is equipped with combustion chamber heater (14), and roasting discharging opening (26) is offered in the bottom of combustion chamber (27).
3. waste molding sand as claimed in claim 2 or core sand regenerating equipment, it is characterized in that: the open top of described sub-sand heating clamber (7) is connected with smoke exhaust pipe (6), smoke exhaust pipe (6) is divided into two branch roads, one of them branch road directly is connected with deduster, and another branch road is connected by the air inlet of blower fan air inlet duct with fluidisation blower fan (24).
4. waste molding sand as claimed in claim 2 or core sand regenerating equipment is characterized in that: fluidisation temperature controller (9) is installed in the described fluidising chamber (8), and fluidisation temperature controller (9) links to each other with fluidising chamber's heater (11); Burning temperature controller (12) is installed in the described combustion chamber (27), and burning temperature controller (12) links to each other with combustion chamber heater (14).
5. waste molding sand as claimed in claim 2 or core sand regenerating equipment is characterized in that: described blower fan exhaust passage comprises fluidisation discharge (13), fluidisation smoke inlet pipe (15) and fluidisation flue gas control valve (23); Fluidisation discharge (13) is connected with fresh air inlet (28) on combustion chamber (27), one end of fluidisation smoke inlet pipe (15) is connected with fluidisation discharge (13), and the other end of fluidisation smoke inlet pipe (15) is connected through the air outlet of fluidisation flue gas control valve (23) with fluidisation blower fan (24).
6. waste molding sand as claimed in claim 3 or core sand regenerating equipment is characterized in that: described blower fan air inlet duct comprises flue gas guiding tube (17), flue gas flow controller (18), cyclone dust removal air inlet pipe (19), cyclone dust collectors (20) and fluidisation fan inleting pipe (16); Flue gas guiding tube (17) one ends are connected with smoke exhaust pipe (6), and the other end is connected through the air inlet of flue gas flow controller (18) with cyclone dust collectors (20) by cyclone dust removal air inlet pipe (19); The gas outlet of cyclone dust collectors (20) is connected by the air inlet of fluidisation fan inleting pipe (16) with fluidisation blower fan (24), offers wild wind inlet (21) on the fluidisation fan inleting pipe (16), and wild wind inlet (21) locates to be equipped with fluidisation flue gas temperature-sensing valve (22).
7. as claim 2,4, one of 5 described waste molding sand or core sand regenerating equipments, it is characterized in that: the bottom of described combustion chamber (27) is a pyramidal structure, roasting discharging opening (26) is located to be provided with and is used to control the sand temperature controller (25) of temperature of shaking out, and sand temperature controller (25) links to each other with combustion chamber heater (14).
8. waste molding sand as claimed in claim 1 or core sand regenerating equipment is characterized in that: described minute abrasive cone (4) the bottom offer the hole slot that passes through for molding sand or core sand; Described sub-sand heating beam (5) is fixedly formed by the stack of multilayer orifice plate, also offers the hole slot that supplies molding sand or core sand to pass through on the orifice plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101972375A CN101862808B (en) | 2010-06-02 | 2010-06-02 | Waste molding sand or core sand regenerating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101972375A CN101862808B (en) | 2010-06-02 | 2010-06-02 | Waste molding sand or core sand regenerating equipment |
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| Publication Number | Publication Date |
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| CN101862808A CN101862808A (en) | 2010-10-20 |
| CN101862808B true CN101862808B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101972375A Expired - Fee Related CN101862808B (en) | 2010-06-02 | 2010-06-02 | Waste molding sand or core sand regenerating equipment |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009122B (en) * | 2010-12-09 | 2013-01-23 | 柳州市奥凯工程机械有限公司 | Waste foundry sand regenerating process method |
| CN102788501A (en) * | 2012-08-31 | 2012-11-21 | 无锡锡南铸造机械有限公司 | Energy-saving environment-friendly type high-temperature fluidized bed calcinator |
| CN102914154B (en) * | 2012-09-25 | 2015-03-04 | 机械工业第四设计研究院 | Boiling fluidizing roasting furnace |
| CN104096794A (en) * | 2013-04-08 | 2014-10-15 | 于彦奇 | Hot reclaimation device for clay sand |
| CN103743236B (en) * | 2014-01-27 | 2015-10-28 | 无锡锡南铸造机械股份有限公司 | The high temperature fluidized bed roaster of waste molding sand two-part |
| CN104275436A (en) * | 2014-09-25 | 2015-01-14 | 金莹铸造材料（天津）有限公司 | Energy-saving type flowing roasting furnace |
| CN105562597B (en) * | 2016-01-08 | 2017-09-29 | 山东金璞新材料有限公司 | A kind of quick roasting regeneration system of energy-saving indirect-cooling casting model powder |
| CN105458164B (en) * | 2016-01-08 | 2017-06-20 | 山东金璞新材料有限公司 | A kind of quick roasting regeneration system of energy-saving filler cooled casting model powder |
| CN105499484B (en) * | 2016-01-08 | 2017-08-29 | 山东金璞新材料有限公司 | A kind of quick roasting regeneration system of energy-saving coil pipe cooled casting model powder |
| CN107020349A (en) * | 2017-05-26 | 2017-08-08 | 康硕电气集团有限公司 | A kind of sand mold 3D printing old sand processing unit and method |
| CN216458903U (en) * | 2021-04-25 | 2022-05-10 | 西安航天源动力工程有限公司 | Waste catalyst regeneration reaction furnace |
| CN115415477B (en) * | 2022-11-03 | 2023-03-24 | 托普工业(江苏)有限公司 | 3D prints casting sand mould recovery processing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000061578A (en) * | 1998-08-24 | 2000-02-29 | Tokyo Gas Co Ltd | Molding sand heating-reconditioning furnace and molding sand heating-reconditioning system |
| CN201693124U (en) * | 2010-06-02 | 2011-01-05 | 无锡锡南铸造机械有限公司 | Waste sand mixture or core sand reclaiming device |
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2010
- 2010-06-02 CN CN2010101972375A patent/CN101862808B/en not_active Expired - Fee Related
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Owner name: WUXI XINAN FOUNDRY MACHINERY CO., LTD. Free format text: FORMER NAME: WUXI XINAN FOUNDRY MACHINERY FACTORY |
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Address after: 214142 Jiangsu province Wuxi New Area Shuofang Industrial Zone South Road No. 50-1 Patentee after: WUXI XINAN FOUNDRY MACHINERY CO., LTD. Address before: 214142 Jiangsu province Wuxi New Area Shuofang Industrial Park Patentee before: Wuxi Xinan Foundry Machinery Co., Ltd. |
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Granted publication date: 20111116 Termination date: 20210602 |