CN202792954U - Energy-saving and environment-friendly high temperature fluidized bed roasting oven - Google Patents

Energy-saving and environment-friendly high temperature fluidized bed roasting oven Download PDF

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Publication number
CN202792954U
CN202792954U CN 201220443753 CN201220443753U CN202792954U CN 202792954 U CN202792954 U CN 202792954U CN 201220443753 CN201220443753 CN 201220443753 CN 201220443753 U CN201220443753 U CN 201220443753U CN 202792954 U CN202792954 U CN 202792954U
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China
Prior art keywords
sand
fluidized bed
temperature fluidized
oven
core
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CN 201220443753
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Chinese (zh)
Inventor
朱旭东
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WUXI XINAN FOUNDRY MACHINERY CO., LTD.
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Wuxi Xinan Foundry Machinery Co Ltd
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Priority to CN 201220443753 priority Critical patent/CN202792954U/en
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Abstract

The utility model relates to an energy-saving and environment-friendly high temperature fluidized bed roasting oven, which comprises an oven body and is characterized in that the upper part of the oven body is a sand preheating section, the middle part is a sand heating and fluidization area, and a fin type air preheater is mounted at the lower part; a gas collecting chamber is arranged below the fin type air preheater, a sand discharge pipe is arranged in the gas collecting chamber, and a burner is mounted in the sand heating and fluidization area; and a sand feeding passage is arranged at the top of the oven body, a sand collecting hopper is mounted at the bottom of the oven body, a sand discharge valve is arranged between the sand collecting hopper and the gas collecting chamber, and a sand discharge passage is arranged at the bottom of the sand collecting hopper. The output of each energy-saving and environment-friendly high temperature fluidized bed roasting oven provided by the utility model can reach 15 ton per hour, and the oven is the largest high temperature fluidized bed roasting oven in the world at present; and by the adoption of the utility model, resin molding of waste molding (core) sand can be fully burnt and peeled off, realizing regeneration of the waste molding (core) sand, and the performance of the regenerated waste molding (core) sand is better than that of the original sand.

Description

Energy saving and environment friendly high temperature fluidized bed roaster
Technical field
The utility model relates to a kind of roaster, and especially a kind of energy saving and environment friendly high temperature fluidized bed roaster belongs to the Casting Equipment technical field.
Background technology
The regeneration of waste and old type (core) sand is related to the problem of the aspects such as casting cost, resources conservation, energy resource consumption and environmental protection.Along with the development of casting technique, in casting process, produced a large amount of waste and old types (core) sand, it has caused great pollution and harm to environment, and social resources have also been caused significant wastage, does not meet the requirement of recycling economy.For making the regeneration of waste and old type (core) sand, the exploitation of low energy consumption, the large high temperature fluidized bed roaster of capacity is the task of top priority of China's casting industry.
And the at present use of resin sand has obtained broad development, per hour processes the thermal reclamation stove of 1~2 ton of resin sand in the past, can not adapt to the needs of casting technique.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of energy saving and environment friendly high temperature fluidized bed roaster is provided, the resin molding of waste and old type (core) sand is burnt in this high temperature fluidized bed roaster fully and peel off, realize the regeneration of waste and old type (core) sand, make the rear performance of waste and old type (core) sand regeneration reach or be better than the requirement of roughing sand.
The technical scheme that provides according to the utility model, described energy saving and environment friendly high temperature fluidized bed roaster, comprise body of heater, feature is: the top of described body of heater is the sand preheating section, the middle part is sand heating fluidization regions, and finned air preheater is installed in the bottom, is collection chamber below finned air preheater, in collection chamber, set out sandpipe, at sand heating fluidization regions install combustion device; Top at described body of heater arranges sand filling passageway, in the bottom of body of heater sand collecting hopper is installed, and the valve that shakes out is set between sand collecting hopper and collection chamber, in the bottom of sand collecting hopper the passage that shakes out is set.
The sub-sand cone is set below the outlet of described sand filling passageway.
Top at described body of heater arranges discharge flue.
Temperature measuring equipment is installed in bottom in described sand heating fluidization regions.
Shell in described sand heating fluidization regions arranges manhole.
Shell at described collection chamber arranges the fluidization air entrance.
Energy saving and environment friendly high temperature fluidized bed roaster list furnace output described in the utility model per hour can reach more than 15 tons, is the present maximum high temperature fluidized bed roaster in the whole world; The utility model can make the resin molding of waste and old type (core) sand be burnt fully in this high temperature fluidized bed roaster and peel off, and realizes the regeneration of waste and old type (core) sand, makes the rear performance of waste and old type (core) sand regeneration reach or be better than the requirement of roughing sand.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As shown in the figure: energy saving and environment friendly high temperature fluidized bed roaster comprises sand filling passageway 1, sub-sand cone 2, discharge flue 3, sand preheating section 4, body of heater 5, temperature measuring equipment 6, finned air preheater 7, collection chamber 8, goes out sandpipe 9, the path 10 that shakes out, sand collecting hopper 11, the valve 12 that shakes out, fluidization air entrance 13, sand heating fluidization regions 14, burner 15, manhole 16 etc.
The utility model comprises body of heater 5, and the top of body of heater 5 is sand preheating section 4, and the middle part is sand heating fluidization regions 14, finned air preheater 7 is installed in the bottom, be collection chamber 8 below finned air preheater 7, in collection chamber 8, set out sandpipe 9, at sand heating fluidization regions 14 install combustion devices 15; At the top of described body of heater 5 sand filling passageway 1 is set, in the bottom of body of heater 5 sand collecting hopper 11 is installed, the valve 12 that shakes out is set between sand collecting hopper 11 and collection chamber 8, in the bottom of sand collecting hopper 11 path 10 that shakes out is set;
Sub-sand cone 2 is set below the outlet of described sand filling passageway 1, is used for sand is disperseed to import sand preheating section 4;
On the top of described body of heater 5 discharge flue 3 is set;
Temperature measuring equipment 6 is installed in bottom in described sand heating fluidization regions 14; Shell in described sand heating fluidization regions 14 arranges manhole 16;
Shell at described collection chamber 8 arranges fluidization air entrance 13.
Described sand preheating section 4 can utilize fume afterheat directly to heat the cold sand of waste and old type (core) that enters sand preheating section 4, reduces the roaster exhaust gas temperature, improves the roaster thermal efficiency, reduces fuel consumption.
Described finned sand warm air preheater 7 can make the effectively waste heat of absorption and regeneration sand of fluidization air, and the resin molding of waste and old type (core) sand is fully burned under high temperature fluidized air effect.
The described valve 12 that shakes out can be controlled the flow of reclaimed sand, to keep the balance of turnover sand.
The utility model is a kind of waste and old type (core) sand thermal reclamation roaster that advances continuously sand, continuous burning, continued sand production.Waste and old type (core) sand is entered in the body of heater 5 by sand filling passageway 1, through sub-sand cone 2 sand is disperseed to import sand preheating section 4, waste and old cold sand is preheating to the temperature of requirement at sand preheating section 4; Waste and old type (core) sand flow after the preheating enters the sand heating fluidization regions 14 of below, waste and old type (core) sand is heated to 600~750 ℃ at sand heating fluidization regions 14 burned devices 15, and carry out the fluidisation heating by the high temperature fluidized air of sand heating fluidization regions 14 belows, the resin sand film burns under oxygen enrichment, between sand grains mutually the collision, rubbing, finish the thermal reclamation to waste and old type (core) sand, and reach the index that casting technique requires.
Be finned fluidization air preheater 7 below sand heating fluidization regions 14, the waste heat of reclaimed sand passes to the fluidization air that is entered by fluidization air entrance 13 herein; And then greensand enters the valve 12 that shakes out through going out sandpipe 9, and under the control of the valve 12 that shakes out, reclaimed sand enters sand collecting hopper 11, flows out roaster by the path 10 that shakes out, and enters the sand temperature cooler of subsequent processing.
The utility model adopts finned air preheater 7, fluidization air can be heated to more than 400 ℃, has reclaimed the major part of thermal reclamation sand waste heat.In addition, the utility model utilizes the waste heat of flue gas, directly adds the cold sand of waste and old type (core) in the stoves in 4 heating of sand preheating section, recyclable fume afterheat 50% or more, thereby greatly improved the thermal efficiency of this fluidized-solids roaster.Add the resin sand film of waste and old type (core) sand through the fluidized bed combustion of high temperature air, the energy of its generation becomes the main thermal source of thermal reclamation, thereby makes the Energy Intensity Reduction of this high temperature fluidized bed roaster arrive a ton sand 45 * 10 4KJ.

Claims (6)

1. energy saving and environment friendly high temperature fluidized bed roaster, comprise body of heater (5), it is characterized in that: the top of described body of heater (5) is sand preheating section (4), the middle part is sand heating fluidization regions (14), finned air preheater (7) is installed in the bottom, be collection chamber (8) in the below of finned air preheater (7), in collection chamber (8), set out sandpipe (9), at sand heating fluidization regions (14) install combustion device (15); At the top of described body of heater (5) sand filling passageway (1) is set, sand collecting hopper (11) is installed in bottom at body of heater (5), the valve (12) that shakes out is set between sand collecting hopper (11) and collection chamber (8), in the bottom of sand collecting hopper (11) passage (10) that shakes out is set.
2. energy saving and environment friendly high temperature fluidized bed roaster as claimed in claim 1 is characterized in that: sub-sand cone (2) is set below the outlet of described sand filling passageway (1).
3. energy saving and environment friendly high temperature fluidized bed roaster as claimed in claim 1 is characterized in that: on the top of described body of heater (5) discharge flue (3) is set.
4. energy saving and environment friendly high temperature fluidized bed roaster as claimed in claim 1 is characterized in that: at the bottom of described sand heating fluidization regions (14) installation temperature measuring equipment (6).
5. energy saving and environment friendly high temperature fluidized bed roaster as claimed in claim 1 is characterized in that: the shell in described sand heating fluidization regions (14) arranges manhole (16).
6. energy saving and environment friendly high temperature fluidized bed roaster as claimed in claim 1, it is characterized in that: the shell at described collection chamber (8) arranges fluidization air entrance (13).
CN 201220443753 2012-08-31 2012-08-31 Energy-saving and environment-friendly high temperature fluidized bed roasting oven Active CN202792954U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220443753 CN202792954U (en) 2012-08-31 2012-08-31 Energy-saving and environment-friendly high temperature fluidized bed roasting oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220443753 CN202792954U (en) 2012-08-31 2012-08-31 Energy-saving and environment-friendly high temperature fluidized bed roasting oven

Publications (1)

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CN202792954U true CN202792954U (en) 2013-03-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103743236A (en) * 2014-01-27 2014-04-23 无锡锡南铸造机械有限公司 Two-section high-temperature fluidized bed roasting furnace for waste casting sand
EP3747537A1 (en) * 2019-06-06 2020-12-09 CMI UVK GmbH Reactor for treating a metal containing acid solution, in particular a pickling sludge, and/or for regenerating an acid component from a metal containing acid solution, preheater device, method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103743236A (en) * 2014-01-27 2014-04-23 无锡锡南铸造机械有限公司 Two-section high-temperature fluidized bed roasting furnace for waste casting 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
EP3747537A1 (en) * 2019-06-06 2020-12-09 CMI UVK GmbH Reactor for treating a metal containing acid solution, in particular a pickling sludge, and/or for regenerating an acid component from a metal containing acid solution, preheater device, method

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: WUXI XINAN FOUNDRY MACHINERY CO., LTD.

Free format text: FORMER NAME: WUXI XINAN FOUNDRY MACHINERY FACTORY

CP03 Change of name, title or address

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, south open 50-1

Patentee before: Wuxi Xinan Foundry Machinery Co., Ltd.