CN110560643A - energy-saving environment-friendly surface drying furnace - Google Patents

energy-saving environment-friendly surface drying furnace Download PDF

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Publication number
CN110560643A
CN110560643A CN201910699522.8A CN201910699522A CN110560643A CN 110560643 A CN110560643 A CN 110560643A CN 201910699522 A CN201910699522 A CN 201910699522A CN 110560643 A CN110560643 A CN 110560643A
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CN
China
Prior art keywords
energy
drying furnace
liquid
friendly
exhaust
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Pending
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CN201910699522.8A
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Chinese (zh)
Inventor
花世军
刘忠军
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NANTONG PRATT MACHINERY CO Ltd
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NANTONG PRATT MACHINERY CO Ltd
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Priority to CN201910699522.8A priority Critical patent/CN110560643A/en
Publication of CN110560643A publication Critical patent/CN110560643A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/12Treating moulds or cores, e.g. drying, hardening

Abstract

The invention discloses an energy-saving environment-friendly surface drying furnace, belonging to the field of surface drying equipment, and comprising a surface drying furnace body, wherein the upper end of the surface drying furnace body is fixedly connected with a heating device and an exhaust gas treatment device, an exhaust gas discharge port is fixedly connected with a first exhaust pipe, the outer side of the first exhaust pipe is fixedly connected with an outer column, the lower end of the outer column is fixedly connected with a liquid inlet, a first temperature sensor is arranged on the liquid inlet, the upper end of the outer column is fixedly connected with a liquid outlet, a second temperature sensor is arranged on the liquid outlet, a fluid space is reserved between the outer wall of the first exhaust pipe and the inner wall of the outer column, the upper end of the first exhaust pipe is fixedly connected with a dust collector, an exhaust fan is fixedly connected in the first exhaust pipe and is positioned at one side close to the dust collector, the dust collector is fixedly connected with one end of a second exhaust, the energy-saving device can be used conveniently, is safe and environment-friendly, and improves the utilization rate of energy.

Description

energy-saving environment-friendly surface drying furnace
Technical Field
The invention relates to the field of surface drying equipment, in particular to an energy-saving and environment-friendly surface drying furnace.
background
The surface drying furnace is mainly used for the drying process of the resin sand core in a casting shop, the resin sand core body has enough strength and less water content after being hardened, only the surface layer needs to be dried after being coated with water-based paint, the temperature rise of a matrix is smaller and better, the process is a surface drying process, the influence factor of the surface drying speed is large, under certain conditions, the hot air temperature and the hot air speed are mainly adopted, and the furnace temperature required by the surface drying process of the resin sand core is 180-250 ℃, so the surface drying speed depends on the hot air speed. The hot air blows the surface of the casting core at a proper speed by the fan at a certain temperature, so that the casting core and the hot air are subjected to sufficient heat exchange and rapid drying, the temperature of the surface drying furnace is stable and uniform, the production batch is large, and the automation degree is high, and the machine body and the sand box reach the minimum temperature rise.
However, the heat and the waste gas which are not fully absorbed by the existing surface drying furnace equipment are exhausted outdoors through an exhaust pipeline, so that the waste of heat is caused, and the waste gas usually contains dust, nitrogen oxides and organic waste gas and is directly exhausted into the atmosphere, so that serious environmental pollution is caused.
Chinese patent CN 105033186a discloses circulating hot air sand core watch dry furnace, which comprises a furnace body, a heater, the heater is located the heater room internal, heater room body bottom is equipped with supply-air outlet and return air inlet, be located the furnace body top, the below of supply-air outlet and return air inlet is equipped with hot air circulating system, hot air circulating system includes circulating fan and the blast pipe that is located the furnace body top, circulating fan's sunction inlet and supply-air outlet intercommunication, the blast pipe bottom is equipped with the blowing nozzle, the both ends symmetry of blast pipe top sets up the exhaust device, the bilateral symmetry of blast pipe is equipped with the return-air duct, the return-air duct is through locating the return air inlet intercommunication heater room body of heater room. The workpiece is dried in a forced hot air circulation mode, and the hot air circulation adopts a structure that air is supplied from the top and returns from two sides, so that the workpiece is uniformly heated and has proper temperature, and the drying speed is improved; be equipped with the waste discharge device in the furnace body and can in time get rid of the moisture in the furnace body, further accelerate drying speed, this technical scheme fails to solve energy waste in the waste gas and directly causes the problem of environmental pollution with waste gas exhaust outdoor, chinese patent CN 201129910Y discloses continuous type psammitolite coating table dry furnace, which comprises a furnace body, heating device, axial along the furnace body in the furnace body sets up roller stick formula material transmission system, roller stick formula material transmission system includes a plurality of roller sticks along furnace body axial parallel arrangement, set up on the roller stick with chain complex sprocket, with sprocket complex chain, drive the drive mechanism of chain motion, this device is rational in infrastructure, and wide in application, the fault rate of table dry furnace device has been reduced, but this technical scheme fails to solve energy waste, heat loss is big, and waste gas causes environmental pollution's problem.
Disclosure of Invention
In order to solve the problems of energy waste and environmental pollution caused by directly discharging waste gas outdoors in the prior art, the invention provides an energy-saving and environment-friendly surface drying furnace which is reasonable in structure, convenient to use, safe and environment-friendly and improves the utilization rate of energy.
An energy-saving environment-friendly type meter dry furnace comprises a meter dry furnace body, wherein the upper end of the meter dry furnace body is fixedly connected with a heating device and a waste gas treatment device, the heating device comprises a heating device body, a heater and a circulating fan, the upper end of the meter dry furnace body is provided with an air supply opening, an air return opening and a waste gas discharge opening, the air return opening is positioned between the air supply opening and the waste gas discharge opening, the waste gas discharge opening is fixedly connected with a first exhaust pipe, the outer side of the first exhaust pipe is fixedly connected with an outer column, the lower end of the outer column is fixedly connected with a liquid inlet, the liquid inlet is provided with a first temperature sensor, the upper end of the outer column is fixedly connected with a liquid outlet, the liquid outlet is provided with a second temperature sensor, a fluid space is reserved between the outer wall of the first exhaust pipe and the inner wall of the, fixedly connected with exhaust fan and fourth temperature sensor in the first exhaust pipe, fourth temperature sensor is located the upside of exhaust fan, the exhaust fan is located the one side that is close to dust collector, the one end of dust collector fixedly connected with second blast pipe, the other end fixedly connected with exhaust gas purification device of second blast pipe, fixedly connected with third blast pipe on the exhaust gas purification device.
Furthermore, one end of a first conduit is fixedly connected to the liquid outlet, the other end of the first conduit is fixedly connected to a liquid storage, a heat insulation plate wraps the outer side of the liquid storage, the thickness of the heat insulation plate is 5-10cm, a third temperature sensor is arranged in the liquid storage, a display control device is fixedly connected to the liquid storage, and a liquid outlet valve is fixedly connected to the lower end of the liquid storage.
Further, the heat insulation board is one of a high-temperature-resistant rock wool heat insulation board, a glass wool heat insulation board, a phenolic composite material heat insulation board and a polystyrene resin heat insulation board.
Furthermore, be connected with material transportation system on the surface dry oven body, material transportation system's lower extreme fixedly connected with cleaning device, surface dry oven body lower extreme fixedly connected with control box, cleaning device is located the one end of keeping away from the control box, cleaning device's lower extreme fixedly connected with waste material accumulator.
Further, cleaning device includes the both sides backup pad, fixedly connected with back shaft between the both sides backup pad, the upper end fixedly connected with clearance dish of back shaft, the lower extreme fixedly connected with drive arrangement of backup pad one side, drive arrangement and control box electric connection.
Furthermore, a dust suction system is installed on the inner side of the supporting plate, and a suction inlet of the dust suction system faces the cleaning disc.
Furthermore, the pipe wall of the first exhaust pipe is provided with a plurality of bulges which are uniformly distributed, and the bulges and the first exhaust pipe are integrally formed.
Furthermore, the first exhaust pipe is provided with more than 4 through holes, the two corresponding through holes are communicated through a second conduit, and the second conduit is communicated with the fluid space.
Furthermore, the liquid outlet is located the one side of keeping away from heating device, fixedly connected with liquid outlet valve on the liquid outlet.
Further, the inlet is located the one side that is close to heating device, inlet fixedly connected with feed liquor pipeline, fixedly connected with liquid pump and feed liquor valve on the feed liquor pipeline, the liquid pump is located between feed liquor valve and the inlet.
compared with the prior art, the invention has the beneficial effects that:
(1) The waste gas treatment device is fixedly connected with the surface drying furnace, a fluid space is reserved between the outer wall of the first exhaust pipe and the inner wall of the outer column, flowing liquid is arranged on the outer side of the first exhaust pipe and can absorb heat of waste gas, waste of energy is avoided, the waste gas generated by the surface drying furnace sequentially passes through the dust collector and the waste gas purification device, the dust collector can remove dust in the waste gas, the waste gas purification device can effectively purify organic matters, nitrogen oxides and the like in the waste gas, the content of pollutants in the waste gas is effectively reduced, and the surface drying furnace is safe and environment-friendly.
(2) The liquid outlet is through first pipe fixedly connected with liquid storage, and the liquid that will have absorbed heat is stored, through showing controlling means, can the direct observation liquid temperature in the liquid storage, and the heated board is installed in the liquid storage outside, and liquid storage has good thermal insulation performance, and the energy is difficult for losing.
(3) The lower end of the material conveying system of the surface drying furnace is fixedly connected with a cleaning device which mainly comprises a cleaning disc, a driving device and a dust collecting system, residues, dust and the like on the surface of the material conveying system can be effectively removed, the environmental pollution is reduced, and the new workpiece can be favorably placed.
(4) The pipe wall of first blast pipe is provided with a plurality of evenly distributed's arch, and arch and first blast pipe integrated into one piece, has the through-hole more than 4 on the first blast pipe, through the second pipe intercommunication between two corresponding through-holes, second pipe and fluid space intercommunication have increased the area of contact of waste gas with first blast pipe, are favorable to the energy in the waste gas to be absorbed better, have improved the rate of recovery of energy, energy saving and emission reduction.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the cleaning apparatus of the present invention;
FIG. 3 is a cross-sectional view of a first exhaust pipe according to another embodiment of the present invention;
Fig. 4 is a schematic structural side view of a first exhaust pipe according to another embodiment of the present invention.
the reference numbers in the figures illustrate:
The device comprises a dry oven body 1, a waste material storage 2, a control box 3, a cleaning device 4, a supporting shaft 41, a cleaning disc 42, a dust suction system 43, a driving device 44, a supporting plate 45, a waste gas discharge port 5, an air supply port 6, a heater 7, a circulating fan 8, an air return port 9, a first exhaust pipe 10, a liquid inlet 101, a liquid outlet 102, an outer column 103, a fluid space 104, a through hole 105, an exhaust fan 11, a dust collector 12, a second exhaust pipe 13, a waste gas purification device 14, a liquid storage 15, a display control device 16, a material transportation system 17 and a third exhaust pipe 18.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
Referring to fig. 1, an energy-saving and environment-friendly surface drying furnace comprises a surface drying furnace body 1, wherein a heating device and a waste gas treatment device are fixedly connected to the upper end of the surface drying furnace body 1, the heating device comprises a heating device body, a heater 7 and a circulating fan 8, an air supply outlet 6, an air return inlet 9 and a waste gas discharge outlet 5 are formed in the upper end of the surface drying furnace body 1, the surface drying furnace is provided with a circulating air return system, hot air is recycled, energy is effectively saved, drying speed is increased, the air return inlet 9 is positioned between the air supply outlet 6 and the waste gas discharge outlet 5, a first exhaust pipe 10 is fixedly connected to the waste gas discharge outlet 5, a plurality of uniformly distributed bulges are arranged on the pipe wall of the first exhaust pipe 10, the bulges and the first exhaust pipe 10 are integrally formed, the bulges are arc-shaped surfaces, flow resistance is reduced, fluid flow is facilitated, and the effective contact area between waste gas and, the outer side of the first exhaust pipe 10 is fixedly connected with an outer column 103, preferably, the height of the first exhaust pipe is 6-9 meters, the height of the outer column 103 is 5.5-8 meters, further preferably, the height of the first exhaust pipe is 6 meters, the height of the outer column 103 is 5.5 meters, the contact area of the waste gas and the liquid through the wall 10 of the first exhaust pipe is effectively increased, the lower end of the outer column 103 is fixedly connected with a liquid inlet 101, the liquid inlet 101 is provided with a first temperature sensor for detecting the temperature of the liquid inlet, the liquid inlet 101 is positioned at one side close to the heating device, the liquid inlet 101 is fixedly connected with a liquid inlet pipeline, the liquid inlet pipeline is fixedly connected with a liquid pump and a liquid inlet valve, the liquid pump is positioned between the liquid inlet valve and the liquid inlet 101, the upper end of the outer column 103 is fixedly connected with a liquid outlet 102, and the liquid outlet 102, the device is used for detecting the temperature of liquid, the liquid outlet 102 is positioned on one side far away from a heating device, the liquid inlet 1 and the liquid outlet 2 are not positioned on the same side, which is beneficial for the fluid to flow and be discharged in the fluid space 104, and the liquid is fully contacted with the outer wall of the first exhaust pipe, which is beneficial for the collection of energy, the liquid outlet 102 is fixedly connected with a liquid outlet valve, a fluid space 104 is reserved between the outer wall of the first exhaust pipe 10 and the inner wall of the outer column 103, the upper end of the first exhaust pipe 10 is fixedly connected with a dust collector 12, the first exhaust pipe 10 is internally and fixedly connected with an exhaust fan 11 and a fourth temperature sensor, the fourth temperature sensor is positioned on the upper side of the exhaust fan 11, the fourth temperature sensor is used for monitoring the temperature of the exhaust gas after heat recovery, thereby adjusting the speed of the fluid, which is convenient for recovering more energy, the exhaust fan 11 can help the exhaust, one end of a second exhaust pipe 13 is fixedly connected with the dust collector 12, the other end of the second exhaust pipe 13 is fixedly connected with a waste gas purification device 14, a third exhaust pipe 18 is fixedly connected with the waste gas purification device 14, a waste gas treatment device is fixedly connected with the surface drying furnace, waste gas generated in the surface drying furnace enters the first exhaust pipe 10 through a waste gas discharge port, a fluid space 104 is reserved between the outer wall of the first exhaust pipe 10 and the inner wall of the outer column 103, flowing liquid is arranged outside the first exhaust pipe 10, can absorb the heat of waste gas, the energy saving has avoided the waste of energy, and the waste gas that the surface dry furnace produced passes through dust collector 12 and exhaust gas purification device 14 in proper order, and dust in the waste gas can be detached to dust collector 12, and exhaust gas purification device 14 can effectively purify organic matter and nitrogen oxide etc. in the waste gas, has effectively reduced pollutant content in the waste gas, and is safe environmental protection.
One end of a first conduit is fixedly connected to the liquid outlet 102, the other end of the first conduit is fixedly connected to a liquid storage 15, the liquid storage 15 stores the liquid absorbing heat, the liquid can be water or cooling liquid, preferably, the liquid is cooling liquid, the cooling liquid is aqueous solution of additives, the additives include glycol, triethanolamine, organosilicate, molybdate, PASP and sodium benzotriazole, and the molar ratio of the dosage of the triethanolamine to the dosage of the organosilicate is 1: 1-2, the cooling liquid contains various additives, the cooling liquid has good cooling performance, metal corrosion can be prevented, and the circulation pipeline is prevented from being blocked by scale, the outer side of the liquid storage 15 is wrapped with a heat insulation board which can be one of a high-temperature-resistant rock wool heat insulation board, a glass wool heat insulation board, a phenolic aldehyde composite material heat insulation board and a polystyrene resin heat insulation board, preferably, the heat insulation board is a glass wool heat insulation board, the heat insulation board needs to be a flame-retardant heat insulation board, the whole oven drying temperature is higher, the selected flame-retardant heat insulation board is safer, the thickness of the heat insulation board is 5-10cm, preferably, the thickness of the heat insulation board is 7 cm, the heat insulation board is installed on the outer side of the liquid storage 16, the heat insulation performance is good, energy loss is not easy to occur, a third temperature sensor is arranged, the temperature of the liquid in the liquid storage 15 and the volume of the liquid can be clearly seen through the display control device 16, and the lower end of the liquid storage 15 is fixedly connected with a liquid outlet valve which can control the liquid to uniformly flow out.
Referring to fig. 2, a material transportation system 17 is connected to a surface drying furnace body 1, a cleaning device 4 is fixedly connected to the lower end of the material transportation system 17, a control box 3 is fixedly connected to the lower end of the surface drying furnace body 1, the control box 3 is mainly used for controlling the material transportation system 17, a temperature control system, a cleaning system, a hot air speed and a safety alarm system, the cleaning device 4 is located at one end far away from the control box 3, a waste storage 2 is fixedly connected to the lower end of the cleaning device 4, the cleaning device 4 comprises two side support plates 45, a support shaft 41 is fixedly connected between the two side support plates 45, 2 cleaning discs 42 are fixedly connected to the upper end of the support shaft 41, the cleaning discs can be circular or oval, preferably, the cleaning discs 42 are circular, a driving device 44 is fixedly connected to the lower end of one side of the support plate 45, the driving device 44 drives the cleaning discs 42 to rotate, the cleaning discs 42 are cleaned on the material, at drive arrangement 44 and control box 3 electric connection, dust collecting system 43 is installed to the inboard of backup pad 45, dust collecting system 43's sunction inlet is towards clearance dish 42, the sunction inlet can be with the dust on clearance system and material transportation system 17 surface, the residue inhales in waste storage ware 2, the dust diffusion has been reduced, environmental pollution has been avoided, be favorable to technical staff's healthy, and guaranteed material transportation system 17 clean and tidy, be favorable to putting of new work piece, waste storage ware 2 is detained with cleaning device 4 through the installation and is connected, can dismantle, be convenient for empty the waste residue.
Example 2:
referring to fig. 3-4, in this embodiment, on the basis of embodiment 1, the first exhaust pipe 10 is provided with more than 4 through holes 105, and the corresponding through holes are communicated by using a second conduit, preferably, the first exhaust pipe 10 is provided with 10 through holes 105, a ratio of a diameter of each through hole to a diameter of the first exhaust pipe 10 is 1:4-6, and further preferably, a ratio of a diameter of each through hole to a diameter of the first exhaust pipe 10 is 1:5, so that exhaust gas can conveniently circulate in the first exhaust pipe 10, the second conduit is communicated with the fluid space 104, the first exhaust pipe 10 is provided with the second conduit, and fluid can flow in the second conduit, so that a contact area between the exhaust gas and the first exhaust pipe is effectively increased, waste heat of the exhaust gas is favorably recovered, a utilization rate of energy is improved, and energy conservation and emission reduction are facilitated.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (10)

1. The utility model provides an energy-concerving and environment-protective type table dry-oven, includes table dry-oven body (1), its characterized in that: the upper end of the surface drying furnace body (1) is fixedly connected with a heating device and a waste gas treatment device, the heating device comprises a heating device body, a heater (7) and a circulating fan (8), the upper end of the surface drying furnace body (1) is provided with an air supply opening (6), an air return opening (9) and a waste gas discharge opening (5), the air return opening (9) is positioned between the air supply opening (6) and the waste gas discharge opening (5), the waste gas discharge opening (5) is fixedly connected with a first exhaust pipe (10), the outer side of the first exhaust pipe (10) is fixedly connected with an outer column (103), the lower end of the outer column (103) is fixedly connected with a liquid inlet (101), the liquid inlet (101) is provided with a first temperature sensor, the upper end of the outer column (103) is fixedly connected with a liquid outlet (102), and the liquid outlet (102) is provided with a second, leave between the outer wall of first exhaust pipe (10) and the inner wall of outer post (103) and be equipped with fluid space (104), the upper end fixedly connected with dust collector (12) of first exhaust pipe (10), fixedly connected with exhaust fan (11) and fourth temperature sensor in first exhaust pipe (10), fourth temperature sensor is located the upside of exhaust fan (11), exhaust fan (11) are located the one side that is close to dust collector (12), the one end of dust collector (12) fixedly connected with second blast pipe (13), the other end fixedly connected with exhaust gas purification device (14) of second blast pipe (13), fixedly connected with third blast pipe (18) on exhaust gas purification device (14).
2. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: the liquid outlet device is characterized in that one end of a first guide pipe is fixedly connected to the liquid outlet (102), the other end of the first guide pipe is fixedly connected with a liquid storage device (15), the outer side of the liquid storage device (15) is wrapped with a heat insulation plate, the thickness of the heat insulation plate is 5-10cm, a third temperature sensor is arranged in the liquid storage device (15), a display control device (16) is fixedly connected to the liquid storage device (15), and the lower end of the liquid storage device (15) is fixedly connected with a liquid outlet valve.
3. The energy-saving environment-friendly surface drying furnace as claimed in claim 2, characterized in that: the heat insulation board is one of a high-temperature-resistant rock wool heat insulation board, a glass wool heat insulation board, a phenolic aldehyde composite material heat insulation board and a polystyrene resin heat insulation board.
4. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: be connected with material transportation system (17) on table dry-off oven body (1), the lower extreme fixedly connected with cleaning device (4) of material transportation system (17), table dry-off oven body (1) lower extreme fixedly connected with control box (3), cleaning device (4) are located the one end of keeping away from control box (3), the lower extreme fixedly connected with waste material accumulator (2) of cleaning device (4).
5. The energy-saving environment-friendly surface drying furnace as claimed in claim 4, wherein: cleaning device (4) include both sides backup pad (45), fixedly connected with back shaft (41) between both sides backup pad (45), the upper end fixedly connected with clearance dish (42) of back shaft (41), lower extreme fixedly connected with drive arrangement (44) of backup pad (45) one side, drive arrangement (44) and control box (3) electric connection.
6. The energy-saving environment-friendly surface drying furnace as claimed in claim 5, wherein: a dust suction system (43) is installed on the inner side of the supporting plate (45), and a suction inlet of the dust suction system (43) faces the cleaning disc (42).
7. the energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: the pipe wall of first blast pipe (10) is provided with a plurality of evenly distributed's arch, and arch and first blast pipe (10) integrated into one piece.
8. The energy-saving environment-friendly surface drying furnace as claimed in claim 1 or 6, wherein: the first exhaust pipe (10) is provided with more than 4 through holes (105), the two corresponding through holes are communicated through a second guide pipe, and the second guide pipe is communicated with the fluid space (104).
9. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: the liquid outlet (102) is positioned at one side far away from the heating device, and a liquid outlet valve is fixedly connected to the liquid outlet (102).
10. The energy-saving environment-friendly surface drying furnace as claimed in claim 1, is characterized in that: inlet (101) are located the one side that is close to heating device, inlet (101) fixedly connected with inlet conduit, fixedly connected with liquid pump and feed liquor valve on the inlet conduit, the liquid pump is located between feed liquor valve and inlet (101).
CN201910699522.8A 2019-07-31 2019-07-31 energy-saving environment-friendly surface drying furnace Pending CN110560643A (en)

Priority Applications (1)

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CN201910699522.8A CN110560643A (en) 2019-07-31 2019-07-31 energy-saving environment-friendly surface drying furnace

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201129910Y (en) * 2007-11-22 2008-10-08 南京年达炉业科技有限公司 Continuous type sand core coating surface drying furnace
CN201289282Y (en) * 2008-11-06 2009-08-12 南京年达炉业科技有限公司 Circulatory system for hot air of sand core watch dried furnace
CN202639229U (en) * 2012-04-13 2013-01-02 南通普瑞特机械有限公司 Conveying mechanism of sand core surface drying furnace
CN105033186A (en) * 2015-08-25 2015-11-11 南通普瑞特机械有限公司 Circulating hot air sand core surface drying furnace
CN205043077U (en) * 2015-07-20 2016-02-24 嘉禾县南宏铸造有限公司 Remove dust and retrieve device of heat in casting knockout workshop
CN206468419U (en) * 2017-02-20 2017-09-05 安徽江淮汽车集团股份有限公司 A kind of front exhaust pipe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201129910Y (en) * 2007-11-22 2008-10-08 南京年达炉业科技有限公司 Continuous type sand core coating surface drying furnace
CN201289282Y (en) * 2008-11-06 2009-08-12 南京年达炉业科技有限公司 Circulatory system for hot air of sand core watch dried furnace
CN202639229U (en) * 2012-04-13 2013-01-02 南通普瑞特机械有限公司 Conveying mechanism of sand core surface drying furnace
CN205043077U (en) * 2015-07-20 2016-02-24 嘉禾县南宏铸造有限公司 Remove dust and retrieve device of heat in casting knockout workshop
CN105033186A (en) * 2015-08-25 2015-11-11 南通普瑞特机械有限公司 Circulating hot air sand core surface drying furnace
CN206468419U (en) * 2017-02-20 2017-09-05 安徽江淮汽车集团股份有限公司 A kind of front exhaust pipe

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