CN115194086A

CN115194086A - Casting sand processing system

Info

Publication number: CN115194086A
Application number: CN202210755952.9A
Authority: CN
Inventors: 彭铱锋; 赵亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-18

Abstract

The invention relates to the technical field of casting sand treatment, in particular to a casting sand treatment system which comprises a washing shell and a heating shell, wherein the heating shell is arranged below the washing shell and is rotatably connected with the washing shell, a crushing assembly used for crushing a casting sand mold is arranged in the washing shell, a water inlet unit used for feeding water into the washing shell is arranged below the crushing assembly, and a spiral heating pipe is arranged below the water inlet unit and in the heating shell, so that when the casting sand mold in water is crushed, the impact force of the crushing assembly on the casting sand mold can be reduced by utilizing the buoyancy force of the casting sand mold in water, the shape of the crushed casting sand is more regular, and the condition that the casting sand is crushed is reduced.

Description

Casting sand processing system

Technical Field

The invention relates to the technical field of casting sand treatment, in particular to a casting sand treatment system.

Background

Foundry sand is classified into two major types, namely silica sand and non-silica sand, according to mineral composition, and is mainly used for sand casting production, when sand casting is performed, a binder is often added into the foundry sand to enable the structure of a foundry sand mold to be more stable and easy to form, foundry sand is recovered from the sand mold used for casting, the binder adhered to the surface of the foundry sand is removed as a new molding material, and the binder used for forming the sand mold is roughly classified into organic binders such as phenolic resin and furan resin and inorganic binders such as sodium silicate (water glass).

At present, the inorganic binder is more difficult to remove from the surface of the foundry sand than the organic binder, the organic binder adhered to the surface of the foundry sand can be removed by firing, and the inorganic binder adhered to the surface of the foundry sand can be removed to some extent by grinding after heating the foundry sand, but the surface of the foundry sand is often irregular and easily crushed after grinding.

In view of the above, in order to improve the above technical problems, the present invention provides a foundry sand treatment system, which improves the above technical problems.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the inorganic binder adhering to the surface of the foundry sand can be removed to some extent by grinding the foundry sand after heating, but the surface is often irregular and easily crushed.

The invention provides a casting sand treatment system which comprises a washing shell and a heating shell, wherein the heating shell is arranged below the washing shell and is rotatably connected with the washing shell, a crushing assembly used for crushing a casting sand mold is arranged in the washing shell, a water inlet unit used for feeding water into the washing shell is arranged below the crushing assembly, and a spiral heating pipe is arranged below the water inlet unit and in the heating shell.

Preferably, the crushing assembly comprises a motor fixedly connected with the upper surface of the washing shell and a crushing rod fixedly connected with an output shaft of the motor, and the periphery of the crushing rod is fixedly connected with a spiral blade.

Preferably, the water inlet unit includes:

the conical water inlet disc is fixedly connected with the bottom of the inner surface of the washing shell and is of a hollow structure;

one end of the water inlet pipe is communicated with the conical water inlet disc and is fixedly connected with the lower surface of the conical water inlet disc, the pipe body of the water inlet pipe penetrates through the heating shell, and the other end of the water inlet pipe is communicated with the water pump;

the water inlet hole is formed in the conical water inlet disc.

Preferably, a discharge port is formed in the washing shell, a guide plate is fixedly connected to the discharge port, an annular water receiving disc is arranged below the discharge port and around the outside of the washing shell, and the water receiving disc is fixedly connected with the upper surface of the heating shell.

Preferably, washing casing bottom is established to the toper, washing casing bottom just is located toper intake dish both sides and has all seted up No. two discharge gates, install an electric control valve in No. two discharge gates.

Preferably, the rigid coupling of washing casing surface has the ring gear, ring gear one side is provided with the straight-teeth gear that meshes with it mutually, straight-teeth gear center rigid coupling has the No. two motor output shafts with heating casing upper surface rigid coupling, washing casing lower surface rigid coupling has the "T" font of two symmetries settings and scrapes the pole, the inboard rigid coupling of pole is scraped to "T" font has a plurality of puddlers, the pole below is scraped to "T" font is provided with the toper and strains the ring, the toper is strained ring and heating casing rigid coupling, the filtration pore has been seted up on the toper is strained the ring, the laminating of pole bottom surface is strained with the toper to "T" font, no. two electrically controlled valves are installed to toper is strained the ring bottom.

Preferably, the lower surface of the conical filter ring is fixedly connected with a first partition plate, two end faces of the first partition plate are fixedly connected with the heating shell, and a water outlet is formed in the heating shell and above the first partition plate.

Preferably, the heating shell bottom is installed with the mechanism of founding, the mechanism of founding includes:

the turning plate is arranged below the first partition plate;

the hinge rod is arranged below the turning plate, one end of the hinge rod is hinged with the turning plate ball, and the other end of the hinge rod is fixedly connected with the heating shell;

the annular sliding chute is arranged on the lower surface of the turning plate;

the sliding block is matched with the annular sliding groove;

the connecting rod is arranged below the sliding block, and one end of the connecting rod is hinged with the sliding block;

the second partition plate is arranged below the turning plate and fixedly connected with the inner side wall of the heating shell, the second partition plate is annular, and the other end of the connecting rod penetrates through the center of the second partition plate and is not in contact with the second partition plate;

the third motor is arranged below the second partition plate and is fixedly connected with the heating shell;

and one end of the pull rod is fixedly connected with the output shaft of the third motor, and the other end of the pull rod is fixedly connected with the free end of the connecting rod.

Preferably, the heating shell is arranged at the turning plate to form a bowl-shaped structure.

Preferably, the air inlet has been seted up to heating casing upper surface one side, and the gas vent has been seted up to the opposite side, gas vent one side is provided with the filter screen, the filter screen both ends respectively with washing casing and heating casing rigid coupling, the filter screen is kept away from gas vent one side and is provided with the exhaust fan, exhaust fan and heating casing rigid coupling.

The invention has the following beneficial effects: the invention provides a casting sand treatment system, which integrates a washing process and a crushing process by arranging the mutual matching of a washing shell, a heating shell, a crushing assembly and a water inlet unit, and firstly, reduces the occupied space of equipment;

secondly, water and the casting sand mold are mixed and then crushed by the crushing assembly, and the dust falling effect is achieved by using a water source, so that compared with the traditional outdoor crushing, the invention avoids the phenomenon that the crushing assembly generates more dust to diffuse into the air when crushing the casting sand mold, so that discomfort is caused to the body feeling of working personnel;

in addition, when the underwater sand mold for casting is crushed, the buoyancy force of the sand mold for casting in water can be utilized to reduce the impact force of the crushing assembly when the sand mold for casting is crushed, so that the crushed sand for casting is more regular in shape, and the condition of sand for casting cracking is reduced;

in addition, different temperature areas are formed in the heating shell and the washing shell which are connected after the spiral heating pipe in the heating shell heats, so that hot water in the washing shell does not need to be heated by additional heating equipment again.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic front view, partially in section, of the present invention;

FIG. 2 is an enlarged view of the invention at A;

FIG. 3 is an enlarged view of the invention at B;

FIG. 4 is a schematic view of a conical filter ring according to the present invention;

in the figure: the device comprises a washing shell 1, a heating shell 2, a crushing component 3, a first motor 31, a crushing rod 32, a water inlet unit 4, a conical water inlet disc 41, a water inlet pipe 42, a water inlet hole 43, a spiral heating pipe 5, a first discharge hole 6, a guide plate 7, an annular water receiving disc 8, a second discharge hole 9, a first electric control valve 10, a gear ring 11, a straight gear 12, a second motor 13, a T-shaped scraping rod 14, a stirring rod 15, a conical filtering ring 16, a filtering hole 17, a second electric control valve 18, a first partition plate 19, a sand-turning mechanism 20, a turning plate 201, a hinged rod 202, an annular sliding groove 203, a sliding block 204, a connecting rod 205, a second partition plate 206, a third motor 207, a pull rod 208, an air inlet 21, an air outlet 22, a filter screen 23, an exhaust fan 24 and a water outlet 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the attached drawings of the specification and specific embodiments.

The invention provides a casting sand treatment system, which comprises a washing shell 1 and a heating shell 2, wherein the heating shell 2 is arranged below the washing shell 1 and is rotatably connected with the washing shell, a crushing assembly 3 for crushing a sand mould for casting is arranged in the washing shell 1, a water inlet unit 4 for feeding water into the washing shell 1 is arranged below the crushing assembly 3, and a spiral heating pipe 5 is arranged below the water inlet unit 4 and positioned in the heating shell 2;

by adopting the technical scheme, when the casting sand is recycled, the spiral heating pipe 5 is started through the control system, after the spiral heating pipe 5 is heated, the heat is gradually transferred upwards into the washing shell 1 from the heating shell 2, three temperature areas of 300-900 ℃, 100-300 ℃ and 20-100 ℃ are sequentially formed in the washing shell 1 and the heating shell 2 from bottom to top, then a worker controls the power equipment in the water inlet unit 4 to be started according to the controller, a water source enters the washing shell 1 from bottom to top under the guidance of the water inlet unit 4, after the water temperature in the washing shell 1 is increased to 20-100 ℃, the worker adds a casting sand mold into the washing shell 1 from a feed inlet formed in the upper part of the washing shell 1, at the moment, a mixed liquid of water and the casting sand mold is formed in the washing shell 1, then the controller controls the crushing component 3 to be started, the casting sand mold in the washing shell 1 is crushed into the casting sand, and the crushing component 3 can stir the casting sand in the water during crushing, and the inorganic scouring binder is improved in the washing separation efficiency of the casting sand;

in the process, the water washing process and the crushing process are integrated, and firstly, the occupied space of equipment is reduced;

secondly, water and the casting sand mold are mixed and then crushed by the crushing assembly 3, and the dust falling effect is achieved by utilizing a water source, so that compared with the traditional outdoor crushing, the sand mold crushing device disclosed by the invention avoids the phenomenon that the crushing assembly 3 generates more dust to diffuse into the air when crushing the casting sand mold, so that discomfort is caused to the body feeling of workers;

in addition, when the underwater sand mold for casting is crushed, the buoyancy force of the sand mold for casting in water can be utilized to reduce the impact force of the crushing assembly 3 when the sand mold for casting is crushed, so that the crushed sand for casting is more regular and flat in shape, and the occurrence of the condition that the sand for casting is cracked due to the overlarge impact force during crushing is reduced;

in addition, different temperature areas are formed in the heating shell 2 and the washing shell 1 after the spiral heating pipe 5 in the heating shell 2 generates heat, so that hot water in the washing shell 1 does not need to be heated by other heating equipment again, and compared with the existing method that an additional heating equipment is often adopted to heat a water source, the method saves resources.

As an embodiment of the present invention, the crushing assembly 3 includes a first motor 31 fixedly connected to the upper surface of the washing housing 1 and a crushing rod 32 fixedly connected to an output shaft of the first motor 31, and helical blades are fixedly connected to the periphery of the crushing rod 32;

the water inlet unit 4 includes:

the water washing device comprises a conical water inlet disc 41, wherein the conical water inlet disc 41 is fixedly connected with the bottom of the inner surface of the water washing shell 1 and is of a hollow structure;

one end of the water inlet pipe 42 is communicated with the conical water inlet disc 41 and is fixedly connected with the lower surface of the water inlet pipe 42, the pipe body of the water inlet pipe 42 penetrates through the heating shell 2, and the other end of the water inlet pipe 42 is communicated with the water pump;

the water inlet hole 43 is formed in the conical water inlet disc 41;

by adopting the technical scheme, when the foundry sand is recycled, the spiral heating pipe 5 is started through the control system, after the spiral heating pipe 5 generates heat, the heat is gradually and upwards transferred from the heating shell 2 to the washing shell 1 from bottom to top, so that three temperature areas of 300-900 ℃, 100-300 ℃ and 20-100 ℃ are sequentially formed in the washing shell 1 and the heating shell 2 from bottom to top;

then, a worker starts a water pump to work according to a controller, a water source sequentially flows into the conical water inlet disc 41 through the water inlet pipe 42 and then enters the washing shell 1 from bottom to top through the water inlet hole 43, when the temperature of water in the washing shell 1 rises to 20-100 ℃, the worker adds the casting sand mold into the washing shell 1 through a feed inlet formed in the upper end of the washing shell 1, and at the moment, a mixed liquid of the water source and the casting sand mold is formed in the washing shell 1;

then, a first motor 31 is started according to a controller, a spiral blade on a crushing rod 32 is driven to rotate through an output shaft of the first motor 31, a casting sand mold in the washing shell 1 is crushed, and meanwhile, the crushing rod 32 which rotates can stir mixed liquid of a water source and the casting sand mold when crushing the casting sand mold, so that the casting sand and the water source are better in mixed contact, and the separation efficiency of the inorganic adhesive and the casting sand is improved by using the scouring force of water flow;

in addition, the water source entering the washing shell 1 from bottom to top can further stir the casting sand in the washing shell 1, so that the washing effect of the water source on the casting sand is further improved, and the separation efficiency of the inorganic binder and the casting sand is further improved;

further, when the temperature of water in the washing shell 1 rises to 20 ℃ -100 ℃, the sand mould for casting is broken by the breaking component 3 in hot water, on one hand, the casting sand can be preheated preliminarily, the situation that the casting sand is broken due to overhigh temperature when entering a heating and drying stage in the later period is reduced, and the preheating time of the casting sand can be shortened, on the other hand, the solubility of the inorganic binder in the casting sand mould is higher in the hot water, so that the solubility of the inorganic binder in the washing shell 1 can be improved, and the reuse efficiency of the sand for casting is improved.

As an implementation mode of the invention, a first discharge port 6 is formed on the washing shell 1, a guide plate 7 is fixedly connected to the first discharge port 6, an annular water pan 8 is arranged below the first discharge port 6 and around the washing shell 1, and the water pan is fixedly connected with the upper surface of the heating shell 2;

through adopting above-mentioned technical scheme, impurity such as carbide that produces in the washing process can float in the surface of water because buoyancy, consequently in the washing process, the water pump constantly supplies water in to washing casing 1, the surface of water constantly rises, when the surface of water exceeds discharge gate 6, surperficial impurity just can follow discharge gate 6 outflow along with rivers, in following guide plate 7 entering annular water collector 8, transport impurity out washing casing 1, because the water source constantly gets into in washing casing 1, and then can be constantly with impurity such as carbide in washing casing 1 along with rivers transportation in annular water collector 8.

As an embodiment of the invention, the bottom of the washing shell 1 is conical, two discharge ports 9 are formed in the bottom of the washing shell 1 and located on two sides of the conical water inlet disc 41, and a first electric control valve 10 is installed in each discharge port 9;

by adopting the technical scheme, after the casting sand mold is crushed and washed for a period of time, the controller controls the first electric control valve 10 to be opened according to a time signal, and the washed casting sand is discharged from the second discharge hole 9 along the bottom of the washing shell 1 by utilizing the dead weight and enters a heating and drying stage.

As an embodiment of the invention, a gear ring 11 is fixedly connected to the outer surface of the washing shell 1, a spur gear 12 engaged with the gear ring 11 is arranged on one side of the gear ring 11, an output shaft of a motor 13 II fixedly connected to the upper surface of the heating shell 2 is fixedly connected to the center of the spur gear 12, two symmetrically arranged T-shaped scraping rods 14 are fixedly connected to the lower surface of the washing shell 1, a plurality of stirring rods 15 are fixedly connected to the inner sides of the T-shaped scraping rods 14, a conical filtering ring 16 is arranged below the T-shaped scraping rods 14, the conical filtering ring 16 is fixedly connected to the heating shell 2, a filtering hole 17 is formed in the conical filtering ring 16, the bottom surface of the T-shaped scraping rod 14 is attached to the inner surface of the conical filtering ring 16, and an electric control valve 18 II is arranged at the bottom of the conical filtering ring 16;

by adopting the technical scheme, when casting sand falls into the conical filter ring 16 from the second discharge hole 9, at the moment, a worker turns off the first motor 31 according to a controller, the second motor 13 is started, the output shaft of the second motor 13 rotates to drive the washing shell 1 to rotate through gear engagement, the washing shell 1 drives the T-shaped scraping rods 14 to rotate, and further drives the stirring rods 15 to rotate to stir the casting sand in the conical filter ring 16, and the contact surfaces of the T-shaped scraping rods 14 and the conical filter ring 16 can scrape the casting sand adhered to the inner side surface of the conical filter ring 16 when the T-shaped scraping rods 14 rotate;

on one hand, the casting sand in the conical filter ring 16 can be stirred, so that the moisture on the casting sand leaks out from the filter holes 17 on the conical filter ring 16, and the water filtering effect of the conical filter ring 16 is improved;

meanwhile, the spiral heating pipe 5 below the conical filtering ring 16 continuously generates heat, the heat generated by the spiral heating pipe 5 is upwards conducted to the conical filtering ring 16, and the temperature of the position is 100-300 ℃, so that when the casting sand is stirred by the T-shaped scraping rod 14 and the stirring rod 15, the moisture on the surface of the casting sand can be better filtered out from the filtering holes 17 on the conical filtering ring 16 and is simultaneously subjected to the heat transmitted by the spiral heating pipe 5, the drying effect on the casting sand in the conical filtering ring 16 is improved, and the drying time is shortened;

on the other hand, after the casting sand in the conical filter ring 16 is primarily dried, a worker controls the second electric control valve 18 to be opened according to the controller, the casting sand falls from the bottom of the conical filter ring 16 and enters a next-stage drying and heating stage, in the process, the output shaft of the second motor 13 still continuously drives the T-shaped scraping rod 14 and the stirring rod 15 to rotate, the casting sand in the conical filter ring 16 can be stirred, the casting sand can fall to the maximum extent, and the waste of the casting sand caused by the adhesion of excessive casting sand on the annular filter ring is avoided;

and the aperture size of the filtering holes 17 is smaller than the sand grain diameter of the casting sand, so that the conical filtering ring 16 can filter moisture on the casting sand and prevent the casting sand from leaking out of the filtering holes 17.

As an embodiment of the present invention, a first partition plate 19 is fixedly connected to the lower surface of the conical filter ring 16, two end faces of the first partition plate 19 are fixedly connected to the heating shell 2, and a water outlet 25 is formed on the heating shell and above the first partition plate 19;

by adopting the technical scheme, when moisture on the foundry sand is filtered out from the filtering holes 17 on the conical filtering ring 16, the moisture enters the separation cavity between the first partition plate 19 and the conical filtering ring 16, and then when the water level of the water flow is higher than the water outlet 25, the excessive water flow flows out from the water outlet 25;

the residual water flow in the separate cavity can slow down the heating effect of the spiral heating pipe 5 on the conical filtering ring 16 when the spiral heating pipe 5 heats the conical filtering ring 16, so that the conical filtering ring 16 is indirectly heated and the temperature can be kept in the range of 100-300 ℃, and the drying and heating effect of the conical filtering ring 16 on the casting sand is ensured;

and be provided with the air deflector between No. one baffle 19 and toper filter ring 16, the air deflector slope sets up and its one end and heating casing 2 rigid coupling, and the other end does not contact with toper filter ring 16, can produce steam after the partial rivers that remain in separating the intracavity are heated, and steam can only discharge from delivery port 25 after receiving the separation of air deflector, and the moisture on the casting sand that is arranged in toper filter ring 16 still can be along the air deflector upper surface landing downwards, falls on No. one baffle 19 from the clearance between air deflector and toper filter ring 16.

As an embodiment of the present invention, a sand casting mechanism 20 is installed at the bottom of the heating shell 2, and the sand casting mechanism 20 includes:

the turning plate 201 is arranged below the first partition plate 19;

the hinge rod 202 is arranged below the turning plate 201, one end of the hinge rod 202 is in spherical hinge with the turning plate 201, and the other end of the hinge rod 202 is fixedly connected with the heating shell 2;

the annular chute 203 is arranged on the lower surface of the turning plate 201;

the sliding block 204 is matched with the annular sliding groove 203;

the connecting rod 205 is arranged below the sliding block 204, and one end of the connecting rod 205 is hinged with the sliding block 204;

the second partition plate 206 is arranged below the turning plate 201 and fixedly connected with the inner side wall of the heating shell 2, the second partition plate 206 is annular, and the other end of the connecting rod 205 penetrates through the center of the second partition plate 206 and is not in contact with the second partition plate 206;

the third motor 207 is arranged below the second partition 206 and fixedly connected with the heating shell 2;

one end of the pull rod 208 is fixedly connected with an output shaft of the third motor 207, and the other end of the pull rod 208 is fixedly connected with the free end of the connecting rod 205;

by adopting the technical scheme, after the casting sand is primarily heated and dried in the conical filter ring 16, the operator controller controls the second electric control valve 18 to be opened, the casting sand falls on the turning plate 201 through the through hole formed in the first partition plate 19, meanwhile, the operator starts the third motor 207 through the controller, the output shaft of the third motor 207 drives the pull rod 208 to rotate, the pull rod 208 drives the connecting rod 205 to rotate, the turning plate 201 is driven to incline at different angles in the rotating process of the connecting rod 205 in the annular chute 203 of the turning plate 201, and the casting sand on the turning plate 201 is driven to turn over, so that the casting sand is heated and dried more uniformly, and the removal effect of moisture between the casting sand and inorganic binders remained on the surface of the casting sand and crystal water contained in the inorganic binders can be improved;

and, just be located on heating housing 2 and turn over board 201 one side and seted up the discharge gate, after casting sand heats a period on turning over board 201, open the sealing valve of discharge gate department, therefore turn over board 201 in the inclined motion process of doing different angles, when turning over board 201 slope when the discharge gate, accomplish the ejection of compact work of casting sand.

As an embodiment of the present invention, the heating housing 2 is arranged in a bowl-shaped structure at the position of the turning plate 201, which can provide enough movement space for the turning plate 201 to perform tilting movements at different angles.

As an embodiment of the present invention, one side of the upper surface of the heating housing 2 is provided with an air inlet 21, the other side is provided with an air outlet 22, one side of the air outlet 22 is provided with a filter screen 23, two ends of the filter screen 23 are respectively fixedly connected with the washing housing 1 and the heating housing 2, one side of the filter screen 23 away from the air outlet 22 is provided with an exhaust fan 24, and the exhaust fan 24 is fixedly connected with the heating housing 2;

by adopting the technical scheme, the air inlet 21 is formed in one side of the upper surface of the heating shell 2, and the one-way air inlet valve is arranged in the air inlet 21, so that the air pressure balance between the interior of the heating shell 2 and the external environment can be conveniently ensured;

and because casting sand can produce steam when heating in toper straining ring 16, and can contain some impurity or other particulate matters in this part steam, consequently, exhaust port 22 has been seted up at heating casing 2 opposite side, install one-way discharge valve in the exhaust port 22, when casting sand falls on toper straining ring 16, the staff passes through the controller and starts exhaust fan 24, steam is discharged from exhaust port 22 and is followed the filtration of filter screen 23, then discharges through exhaust fan 24, reduce the diffusion of particulate matter and impurity.

The working principle is as follows: when the foundry sand is recycled, the spiral heating pipes 5 are started through the control system, after the spiral heating pipes 5 generate heat, the heat is gradually and upwards transferred from the heating shell 2 to the washing shell 1 from bottom to top, so that three temperature areas of 300-900 ℃, 100-300 ℃ and 20-100 ℃ are sequentially formed in the washing shell 1 and the heating shell 2 from bottom to top;

then, the first motor 31 is started according to the controller, the crushing rod 32 is driven to rotate through the output shaft of the first motor 31, the casting sand mold in the washing shell 1 is crushed, and meanwhile, the crushing rod 32 which rotates can stir mixed liquid of a water source and the casting sand mold when crushing the casting sand mold, so that the casting sand and the water source are better mixed and contacted, and the separation efficiency of the inorganic adhesive and the casting sand is improved by utilizing the scouring force of water flow;

a second crushed casting sand discharge port 9 falls into a conical filter ring 16, at the moment, a worker turns off a first motor 31 according to a controller, a second motor 13 is started, an output shaft of the second motor 13 rotates to drive a washing shell 1 to rotate through gear meshing, the washing shell 1 drives a T-shaped scraping rod 14 to rotate so as to drive a plurality of stirring rods 15 to rotate, casting sand in the conical filter ring 16 is stirred, and a contact surface between the T-shaped scraping rod 14 and the conical filter ring 16 can scrape the casting sand adhered to the inner side surface of the conical filter ring 16 when the T-shaped scraping rod 14 rotates, so that the casting sand is uniformly heated;

after the primary drying of the casting sand in the conical filter ring 16 is finished, a worker controls the second electric control valve 18 to be opened according to the controller, the casting sand falls from the bottom of the conical filter ring 16 and enters the next stage of drying and heating;

then, the casting sand falls on the turning plate 201 through a through hole formed in the first partition plate 19, meanwhile, a third motor 207 is started by a worker through a controller, an output shaft of the third motor 207 drives a pull rod 208 to rotate, the pull rod 208 pulls a connecting rod 205 to rotate, the turning plate 201 is pulled to incline at different angles in the rotating process of the connecting rod 205 in an annular sliding groove 203 of the turning plate 201, and then the casting sand on the turning plate 201 is driven to turn over, so that the casting sand is heated and dried more uniformly, and the removal effect of moisture between the casting sand and inorganic binders remained on the surface of the casting sand and crystal water contained in the inorganic binders can be improved;

finally, after the casting sand is heated on the turning plate 201 for a period of time, the sealing valve at the discharge port is opened, so that the turning plate 201 is in the process of inclined movement at different angles, and when the inclined slope of the turning plate 201 faces the discharge port, the discharging work of the casting sand is completed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A foundry sand processing system which characterized in that: including washing casing (1) and set up in washing casing (1) below and rather than rotate heating casing (2) of being connected, be provided with crushing unit (3) that are used for broken foundry sand mould in washing casing (1), crushing unit (3) below is provided with and is used for to washing water unit (4) of intaking into casing (1), it just is located heating casing (2) and installs spiral heating pipe (5) to intake unit (4) below.

2. A foundry sand handling system according to claim 1, wherein: broken subassembly (3) include with washing casing (1) upper surface rigid coupling one number motor (31) and with one number broken pole (32) of motor (31) output shaft rigid coupling, broken pole (32) all around rigid coupling have the heliciform blade.

3. A foundry sand treatment system in accordance with claim 1, wherein: the water inlet unit (4) comprises:

the conical water inlet disc (41), the conical water inlet disc (41) is fixedly connected with the bottom of the inner surface of the washing shell (1) and is of a hollow structure;

one end of the water inlet pipe (42) is communicated with the conical water inlet disc (41) and is fixedly connected with the lower surface of the water inlet pipe, the pipe body of the water inlet pipe (42) penetrates through the heating shell body 2, and the other end of the water inlet pipe is communicated with the water pump;

the water inlet hole (43) is formed in the conical water inlet disc (41).

4. A foundry sand treatment system in accordance with claim 1, wherein: a discharge gate (6) has been seted up on washing casing (1), discharge gate (6) department rigid coupling has guide plate (7), discharge gate (6) below just encircles and is provided with annular water collector (8) in washing casing (1) outside, water collector and heating casing (2) upper surface rigid coupling.

5. A foundry sand treatment system in accordance with claim 1, wherein: establish to the toper bottom washing casing (1), washing casing (1) bottom just is located toper water inlet disc (41) both sides and has all seted up No. two discharge gates (9), install an electric control valve (10) in No. two discharge gates (9).

6. A foundry sand handling system according to claim 1, wherein: wash casing (1) surface rigid coupling has ring gear (11), ring gear (11) one side is provided with straight-teeth gear (12) that meshes mutually with it, straight-teeth gear (12) center rigid coupling has No. two motor (13) output shafts with heating casing (2) upper surface rigid coupling, wash casing (1) lower surface rigid coupling has "T" font that two symmetries set up and scrapes pole (14), pole (14) inboard rigid coupling has a plurality of puddler (15) is scraped to "T" font, pole (14) below is scraped to "T" font is provided with toper and strains ring (16), toper strain ring (16) and heating casing (2) rigid coupling, filtration hole (17) have been seted up on toper strain ring (16), pole (14) bottom surface is scraped to "T" font and ring (16) internal surface laminating is strained to the toper, no. two electric control valve (18) are installed to toper strain ring (16) bottom.

7. A foundry sand treatment system according to claim 6, wherein: the conical filter ring (16) lower surface is fixedly connected with a partition plate (19), two end faces of the partition plate (19) are fixedly connected with a heating shell (2), and a water outlet (25) is formed in the heating shell and above the partition plate (19).

8. A foundry sand treatment system according to claim 6, wherein: heating housing (2) bottom is installed founding mechanism (20), founding mechanism (20) include:

the turning plate (201), the turning plate (201) is arranged below the first partition plate (19);

the hinge rod (202) is arranged below the turning plate (201), one end of the hinge rod (202) is in spherical hinge with the turning plate (201), and the other end of the hinge rod (202) is fixedly connected with the heating shell (2);

the annular sliding chute (203), the annular sliding chute (203) is arranged on the lower surface of the turning plate (201);

the sliding block (204) is matched with the annular sliding groove (203);

the connecting rod (205) is arranged below the sliding block (204), and one end of the connecting rod (205) is hinged with the sliding block (204);

the second partition plate (206) is arranged below the turning plate (201) and fixedly connected with the inner side wall of the heating shell (2), the second partition plate (206) is annular, and the other end of the connecting rod (205) penetrates through the center of the second partition plate (206) and is not in contact with the second partition plate (206);

the third motor (207) is arranged below the second partition plate (206) and is fixedly connected with the heating shell (2);

one end of the pull rod (208) is fixedly connected with an output shaft of the third motor (207), and the other end of the pull rod (208) is fixedly connected with the free end of the connecting rod (205).

9. A foundry sand treatment system according to claim 6, wherein: the heating shell (2) is arranged at the turning plate (201) to be of a bowl-shaped structure.

10. A foundry sand treatment system according to claim 6, wherein: air inlet (21) have been seted up to heating casing (2) upper surface one side, and gas vent (22) have been seted up to the opposite side, gas vent (22) one side is provided with filter screen (23), filter screen (23) both ends respectively with washing casing (1) and heating casing (2) rigid coupling, gas vent (22) one side is kept away from in filter screen (23) and is provided with exhaust fan (24), exhaust fan (24) and heating casing (2) rigid coupling.