CN215879761U

CN215879761U - Lost foam drying device

Info

Publication number: CN215879761U
Application number: CN202122010943.0U
Authority: CN
Inventors: 戴仕平
Original assignee: Changzhou Chengwei Casting Co ltd
Current assignee: Changzhou Chengwei Casting Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-22
Anticipated expiration: 2031-08-24

Abstract

The utility model relates to a disappearance mould drying device belongs to the technical field of disappearance mould processing equipment, including the oven, the one end of oven is equipped with the air intake, the one end that the air intake was kept away from to the oven is equipped with the air exit, be equipped with the baffle in the oven, be equipped with the ventilation hole on the baffle, the baffle falls into condensation chamber and drying chamber with the oven, the condensation chamber is close to the air intake, be equipped with the circulation wind gap on the lateral wall of condensation chamber, the circulation wind gap passes through the connecting pipe with the air exit and is connected, be equipped with the condensation mechanism that is used for the vapor condensation in the condensation chamber, be equipped with the stoving mechanism that is used for drying the disappearance mould in the drying chamber. This application has the effect that improves drying efficiency.

Description

Lost foam drying device

Technical Field

The application relates to the field of lost foam processing equipment, in particular to a lost foam drying device.

Background

Lost foam casting (also called solid casting) is a novel casting method which comprises the steps of bonding and combining paraffin or foam models with similar sizes and shapes to form a model cluster, coating refractory paint on the model cluster, drying the model cluster, burying the model cluster in dry quartz sand for vibration modeling, pouring under negative pressure to gasify the model, enabling liquid metal to occupy the position of the model, solidifying and cooling the model cluster to form a casting.

Lost foam is after the casting shaping, generally all need use drying equipment to dry to lost foam, and drying equipment among the correlation technique adopts the oven to dry very much, and a lot of ovens directly extract the air and heat when drying, and in the great environment of humidity, the vapor content in the air is great to inside humidity of oven is too big when causing the stoving, leads to drying efficiency low.

SUMMERY OF THE UTILITY MODEL

In order to improve drying efficiency, this application provides a disappearance mould drying device.

The application provides a pair of disappearance mould drying device adopts following technical scheme:

the utility model provides a disappearance mould drying device, includes the oven, the one end of oven is equipped with the air intake, the one end that the air intake was kept away from to the oven is equipped with the air exit, be equipped with the baffle in the oven, be equipped with the ventilation hole on the baffle, the baffle falls into condensation chamber and drying chamber with the oven, the condensation chamber is close to the air intake, be equipped with the circulation wind gap on the lateral wall of condensation chamber, the circulation wind gap passes through the connecting pipe with the air exit and is connected, be equipped with the condensation mechanism that is used for the vapor condensation in the condensation chamber, be equipped with the stoving mechanism that is used for the stoving disappearance mould in the drying chamber.

Through adopting above-mentioned technical scheme, when drying to disappearance mould, will disappear the mould and place in the drying chamber, start stoving mechanism and dry to disappearance mould, along with the temperature in the drying chamber risees gradually, the atmospheric pressure in the drying chamber also crescent gradually, and the gas in the drying chamber is followed air outlet and is discharged. The discharged waste hot gas is transmitted to the condensing chamber through the connecting pipe, and the moisture in the waste hot gas is liquefied and condensed under the action of the condensing mechanism. And the condensed gas enters the drying chamber from the condensing chamber through the vent holes, and is circularly heated until the evaporative pattern in the drying chamber is dried. The heat in the exhausted waste heat air is fully utilized, the heating and drying time is shortened, the drying efficiency is improved, the heat energy is recycled, and the energy utilization rate is improved.

Optionally, the condensation mechanism includes the condensation support, be equipped with the condensation plate on the condensation support, the condensation plate evenly is provided with a plurality ofly along the length direction of oven, and is a plurality of the below of condensation plate is equipped with same header tank, the lower terminal surface of header tank and the diapire butt of oven.

Through adopting above-mentioned technical scheme, when the exhaust waste hot gas of air exit lets in the condensation chamber, moisture can condense into the drop of water on the surface of condensation plate in the gas, when the drop of water on condensation plate surface is more, receives self gravity to influence, and the drop of water can flow into in the condensation fill, finally saves in the header tank.

Optionally, the condensation plate is provided with a condensation pipe.

Through adopting above-mentioned technical scheme, when the exhaust waste hot gas of air exit lets in the condensation chamber, through the effect of condenser pipe, the surface temperature of condensing plate further reduces, strengthens the rate of condensation of moisture in the gas.

Optionally, the side walls of the condensation plates, which are far away from each other, are provided with guide plates, the guide plates on the same side wall are arranged in a relatively inclined mode, the top end of the water collecting tank is provided with a condensation hopper, and the bottom ends of the guide plates are arranged in the condensation hopper.

Through adopting above-mentioned technical scheme, the guide plate can be so that the drop of water on the condensing plate can collect fast for the efficiency of condensation. Meanwhile, the flow guide plate can reduce the phenomenon that water drops outside the condensation hopper.

Optionally, the ventilation hole evenly is provided with a plurality ofly on the baffle, the ventilation hole is the loudspeaker form, the big open end in ventilation hole is close to the condensation chamber, the little open end in ventilation hole is close to the drying chamber.

Through adopting above-mentioned technical scheme, the ventilation hole of loudspeaker form is convenient for gaseous from the condensing chamber transmission to the drying chamber, reduces the possibility of steam backward flow to further improve drying efficiency.

Optionally, stoving mechanism is including locating the electrothermal tube on the drying chamber lateral wall, the electrothermal tube evenly is provided with a plurality ofly along the length direction of drying chamber, the input and the external power of electrothermal tube pass through the wire and constitute the electricity and be connected.

When the lost foam is dried, an external power supply is started, and the electric heating tube starts to heat gas in the drying chamber. A plurality of electrothermal tubes evenly set up for the inside temperature distribution of drying chamber is more even, thereby makes the disappearance mould on the work or material rest be heated evenly, reduces the inhomogeneous phenomenon of disappearance mould stoving and takes place.

Optionally, the drying mechanism further comprises a plurality of electric heating lamps, and the electric heating lamps are uniformly arranged on the top wall of the drying chamber.

Through adopting above-mentioned technical scheme, the electric heat lamp is convenient for the staff to deposit and take the disappearance mould in the drying chamber night. In addition, when the staff carries out the access of disappearance mould, the electricity heater can preheat the inside gas of drying chamber to reduce holistic stoving time, improve the speed of drying.

Optionally, be equipped with the installation shell in the air exit, the outer wall and the air exit lateral wall butt of installation shell, be equipped with exhaust mechanism in the installation shell, exhaust mechanism includes installing support, motor and negative pressure fan, the outer wall and the air exit butt of installation shell, the inner wall of installation shell is equipped with the installing support, the center of installing support is rotated and is connected with the rotation axis, the one end and the negative pressure fan fixed connection of condensation chamber are kept away from to the rotation axis, the motor is installed on the lateral wall of drying chamber, the output of motor and the one end that the negative pressure fan was kept away from to the rotation axis are passed through the belt and are connected.

Through adopting above-mentioned technical scheme, when drying to the disappearance mould, humidity and atmospheric pressure crescent in the drying chamber, starter motor this moment, motor pass through the belt and drive the axis of rotation and rotate, and the axis of rotation drives the negative pressure fan rotatory, and the negative pressure fan is with the gas in the drying chamber from the exhaust hole discharge entering connecting pipe. The negative pressure fan accelerates the discharge rate of the waste hot gas into the connecting pipe, so that the heat exchange rate is accelerated, and the drying efficiency is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

through the setting of connecting pipe and circulation wind gap, let in the condensing chamber with the exhaust useless hot gas in the drying chamber and condense for moisture liquefaction in the useless hot gas condenses, and the gas after the condensation gets into the drying chamber from the condensing chamber through the ventilation hole, begins to carry out circulation heating. The heat in the exhausted waste heat air is utilized, so that the heating and drying time is shortened, the drying efficiency is improved, the heat energy is recycled, and the utilization rate of energy is improved;

by the arrangement of the guide plate, water drops on the condensation plate can be quickly collected, the condensation efficiency is accelerated, and the phenomenon that the water drops drop outside the condensation hopper can be reduced;

through the setting of electric heat lamp, the staff of being convenient for deposits and takes the disappearance mould in the drying chamber night.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present application, in which a first box door and a second box door are turned over.

Fig. 2 is a schematic structural diagram of an air exhausting mechanism in an embodiment of the present application, in which a drying chamber is cut.

Fig. 3 is a sectional view showing a specific structure of a condensing mechanism and a vent hole in an embodiment of the present application.

Description of reference numerals: 1. an oven; 11. an air inlet; 12. an air outlet; 121. mounting a shell; 122. an air exhaust mechanism; 1221. mounting a bracket; 1222. a negative pressure fan; 1223. a motor; 1224. a rotating shaft; 1225. a belt; 13. a circulating tuyere; 14. a partition plate; 141. a vent hole; 2. a condensing chamber; 21. a condensing mechanism; 211. a condensing support; 212. a condensing plate; 2121. a baffle; 213. a condenser tube; 22. a first door; 23. a water collection tank; 24. a condensation hopper; 3. a drying chamber; 31. a drying mechanism; 311. an electric heating tube; 312. an electric heating lamp; 32. a second door; 4. and (4) connecting the pipes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses disappearance mould drying device. Referring to fig. 1, the lost foam drying device includes an oven 1, and an air inlet 11 and an air outlet 12 are respectively formed at two ends of the oven 1 along a length direction thereof. The side wall of the oven 1 is also provided with a circulating air port 13, and the circulating air port 13 is connected with the air outlet 12 through a connecting pipe 4. Referring to fig. 2, a partition 14 is fixedly connected in the oven 1, a vent hole 141 is formed in the partition 14, the partition 14 is arranged along the width direction of the oven 1, the oven 1 is divided into a condensing chamber 2 and a drying chamber 3 by the partition 14, and the circulating air opening 13 is located on the side wall of the condensing chamber 2. A condensing mechanism 21 for condensing water vapor is arranged in the condensing chamber 2, and a drying mechanism 31 for drying the lost foam is arranged in the drying chamber 3.

When drying to the disappearance mould, in putting into drying chamber 3 with the work or material rest of placing the stoving mould, start stoving mechanism 31 and condensation mechanism 21 in proper order, stoving mechanism 31 heats the intensification to the gas in drying chamber 3, and the moisture in the disappearance mould is through the heating gasification of stoving mechanism 31, evaporates to the inside space of drying chamber 3, the humidity crescent in the drying chamber 3. Meanwhile, as the air expands due to heating, the air pressure in the drying chamber 3 gradually increases, a pressure difference is formed between two sides of the air outlet 12, and the air in the drying chamber 3 starts to enter the connecting pipe 4 from the air outlet 12 and finally enters the condensing chamber 2 through the connecting pipe 4. The gas discharged from the air outlet 12 is subject to the action of the condensing mechanism 21, and the moisture in the gas is finally liquefied and condensed. The condensed gas enters the drying chamber 3 from the condensing chamber 2 through the vent hole 141, and the cyclic heating is started until the evaporative pattern in the drying chamber 3 is dried.

Referring to fig. 1, a first door 22 is hinged to a side wall of the condensing chamber 2 away from the circulating air opening 13, and a second door 32 is hinged to a side wall of the drying chamber 3 on the same side as the first door 22. The drying mechanism 31 includes two sets of electric heating tubes 311 disposed on the two side walls of the drying chamber 3, wherein one set of electric heating tube 311 is installed on one side of the second box door 32 facing the inside of the drying chamber 3, each set of electric heating tube 311 is provided with a plurality of electric heating tubes 311, the specifications of the electric heating tubes 311 are the same and are uniformly disposed along the length direction of the drying chamber 3, and the input ends of the electric heating tubes 311 are electrically connected with an external power supply through wires.

When the lost foam is dried, an external power supply is started, the electric heating tube 311 starts to work, and the gas in the drying chamber 3 is heated. The specifications of the electric heating tubes 311 are the same and are uniformly arranged along the length direction of the drying chamber 3, so that the temperature distribution inside the drying chamber 3 is more uniform, the lost foam on the material rack is uniformly heated, the phenomenon that the lost foam is not uniformly dried is reduced, and the drying efficiency is improved.

Referring to fig. 1, in order to facilitate the worker to store, retrieve and number the evaporative pattern in the drying chamber 3 at night, the drying mechanism 31 further includes an electric heating lamp 312 installed on the top wall of the drying chamber 3, and the electric heating lamp 312 is uniformly provided with a plurality of parts along the length direction of the drying chamber 3. In addition, owing to open drying chamber 3's second chamber door 32 back, the temperature in drying chamber 3 can reduce gradually, when the staff carries out the access of disappearance mould, opens electric heat lamp 312, and electric heat lamp 312 preheats the inside gas of drying chamber 3 to reduce holistic stoving time, improve the speed of drying.

Referring to fig. 3, an installation shell 121 is fixedly connected in the exhaust outlet 12, an outer wall of the installation shell 121 abuts against a side wall of the exhaust outlet 12, and an exhaust mechanism 122 is arranged in the installation shell 121. The air exhausting mechanism 122 includes a mounting bracket 1221, a negative pressure fan 1222 and a motor 1223, the motor 1223 is mounted on the sidewall of the drying chamber 3, the mounting bracket 1221 is fixedly connected to the inner wall of the mounting case 121, a rotating shaft 1224 is rotatably connected to the center of the mounting bracket 1221, the rotating shaft 1224 is arranged along the length direction of the drying chamber 3, and two ends of the rotating shaft 1224 are located at two sides of the mounting bracket 1221. An end of the rotating shaft 1224 away from the condensing chamber 2 is fixedly connected to the negative pressure fan 1222, and an end of the rotating shaft 1224 away from the negative pressure fan 1222 is connected to an output end of the motor 1223 through a belt 1225.

Referring to fig. 1 and 2, when the evaporative pattern is dried, the humidity and the air pressure in the drying chamber 3 are gradually increased, at this time, the motor 1223 is started, the motor 1223 drives the rotating shaft to rotate through the belt 1225, the rotating shaft drives the negative pressure fan 1222 to rotate, the negative pressure fan 1222 discharges the air in the drying chamber 3 from the exhaust hole into the connecting pipe 4, so that the air pressure in the drying chamber 3 is reduced, a negative pressure region is formed inside the drying chamber 3, and finally the air pressure enters the condensing chamber 2 through the connecting pipe 4, and the condensed air can rapidly enter the drying chamber 3 from the condensing chamber 2 through the vent hole 141 due to the air pressure difference between the two sides of the partition plate 14, and the cyclic heating is started.

Referring to fig. 3, the condensing mechanism 21 includes a condensing bracket 211, a condensing plate 212, and a condensing duct 213. On condensation support 211 was fixed in the diapire of condensation chamber 2, condensing panel 212 suspended mounting was on the roof of condensation support 211, and condensing panel 212 evenly is provided with a plurality ofly along oven 1's length direction, and condenser pipe 213 is installed relatively on the both sides face of condensing panel 212, and condenser pipe 213's input passes through wire and external power electric connection. The bottom wall of the condensation chamber 2 is fixedly connected with a water collecting tank 23, the water collecting tank 23 is positioned below the plurality of condensation plates 212, and the top end of the water collecting tank 23 is fixedly connected with a condensation bucket 24.

When the gas of air exit 12 combustion gas gets into condensing chamber 2 through connecting pipe 4, open external power, condenser pipe 213 begins work, through condenser pipe 213's effect, the surface temperature of condensing panel 212 reduces, and moisture can condense into the drop of water on condenser pipe 213 and condensing panel 212's surface in the gas, and when the drop of water on condenser pipe 213 and condensing panel 212 surface was more, through self gravity, the drop of water can flow into in condensation fill 24, finally saves in header tank 23.

Referring to fig. 3, in order to facilitate the rapid collection of the water drops on the condensation plate 212 and accelerate the condensation efficiency, and simultaneously reduce the possibility that the water drops drop outside the condensation bucket 24, the flow guide plates 2121 are disposed on the two side plate surfaces of the condensation plate 212, the flow guide plates 2121 on the same side plate surface are arranged in a relatively inclined manner, and the bottom ends of the flow guide plates 2121 are located in the opening of the condensation bucket 24.

Referring to fig. 3, vent 141 on separator 14 is trumpet-shaped, and the big open end of vent 141 is towards condensing chamber 2, and the little open end of vent 141 is towards drying chamber 3, and this design can be convenient for transmit the direction to gas, and the drying chamber 3 is transmitted from condensing chamber 2 to the gas of being convenient for, reduces the possibility of steam backward flow to further improve drying efficiency.

The implementation principle of a disappearance mould drying device of the embodiment of this application is: when drying to the disappearance mould, in putting into drying chamber 3 with the work or material rest of placing the stoving mould, start stoving mechanism 31 and condensation mechanism 21 in proper order, stoving mechanism 31 heats the intensification to the gas in drying chamber 3, and the moisture in the disappearance mould is through the heating gasification of stoving mechanism 31, evaporates to the inside space of drying chamber 3, the humidity crescent in the drying chamber 3. At the same time, the exhaust mechanism 122 starts to operate, and the air in the drying chamber 3 is exhausted from the exhaust port 12 into the connecting pipe 4, and finally the exhausted hot air is introduced into the condensing chamber 2. The gas discharged from the air outlet 12 is liquefied and condensed by the condensing mechanism 21, and is stored in the water storage tank. The condensed gas enters the drying chamber 3 from the condensing chamber 2 through the vent hole 141, and the cyclic heating is started until the evaporative pattern in the drying chamber 3 is dried. The embodiment of the application makes full use of the heat in the exhausted waste heat air, shortens the heating and drying time, improves the drying efficiency, realizes the recycling of heat energy, and improves the utilization rate of energy.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a disappearance mould drying device, includes oven (1), the one end of oven (1) is equipped with air intake (11), the one end that air intake (11) were kept away from in oven (1) is equipped with air exit (12), its characterized in that: the drying oven is characterized in that a partition plate (14) is arranged in the drying oven (1), a ventilation hole (141) is formed in the partition plate (14), the partition plate (14) divides the drying oven (1) into a condensation chamber (2) and a drying chamber (3), the condensation chamber (2) is close to an air inlet (11), a circulating air port (13) is formed in the side wall of the condensation chamber (2), the circulating air port (13) is connected with an air outlet (12) through a connecting pipe (4), a condensation mechanism (21) for condensing water vapor is arranged in the condensation chamber (2), and a drying mechanism (31) for drying a lost foam is arranged in the drying chamber (3).

2. A lost foam drying apparatus according to claim 1, wherein: condensation mechanism (21) is including locating condensation support (211) on condensation chamber (2) diapire, be equipped with condensing panel (212) on condensation support (211), condensing panel (212) evenly are provided with a plurality ofly along the length direction of oven (1), and is a plurality of the below of condensing panel (212) is equipped with same header tank (23), the lower terminal surface of header tank (23) and the diapire butt of condensation chamber (2).

3. A lost foam drying apparatus according to claim 2, wherein: and a condensing pipe (213) is arranged on the condensing plate (212).

4. A lost foam drying apparatus according to claim 3, wherein: all be equipped with guide plate (2121) on the both sides lateral wall of keeping away from each other of condensation plate (212), on same lateral wall guide plate (2121) slope relatively sets up, the top of header tank (23) is equipped with condensation fill (24), the bottom of guide plate (2121) is located in condensation fill (24).

5. A lost foam drying apparatus according to claim 1, wherein: vent hole (141) evenly are provided with a plurality ofly on baffle (14), vent hole (141) are the loudspeaker form, the big open end in vent hole (141) is close to condensation chamber (2), the little open end in vent hole (141) is close to drying chamber (3).

6. A lost foam drying apparatus according to claim 1, wherein: the drying mechanism (31) comprises two groups of electric heating tubes (311) which are oppositely arranged on the side walls of two sides of the drying chamber (3), each group of electric heating tubes (311) is provided with a plurality of electric heating tubes (311), the electric heating tubes (311) are uniformly arranged along the length direction of the drying chamber (3), and the input ends of the electric heating tubes (311) are electrically connected with an external power supply through conducting wires.

7. A lost foam drying apparatus according to claim 1, wherein: the drying mechanism (31) further comprises a plurality of electric heating lamps (312), and the electric heating lamps (312) are uniformly arranged on the top wall of the drying chamber (3).

8. A lost foam drying apparatus according to claim 1, wherein: be equipped with installation shell (121) in exhaust vent (12), the outer wall and the exhaust vent (12) lateral wall butt of installation shell (121), be equipped with exhaust mechanism (122) in installation shell (121), exhaust mechanism (122) are including installing support (1221), motor (1223) and negative pressure fan (1222), the outer wall and exhaust vent (12) butt of installation shell (121), the inner wall of installation shell (121) is equipped with installing support (1221), the center of installing support (1221) is rotated and is connected with rotation axis (1224), the one end and the negative pressure fan (1222) fixed connection of condensation chamber (2) are kept away from to rotation axis (1224), motor (1223) are installed on the lateral wall of drying chamber (3), the output of motor (1223) is passed through belt (1225) with the one end that negative pressure fan (1222) was kept away from to rotation axis (1224) and is connected.