CN109175227B

CN109175227B - Recovery processing device of molding sand

Info

Publication number: CN109175227B
Application number: CN201810868714.2A
Authority: CN
Inventors: 艾永青
Original assignee: Fanchang County Great Wall Foundry (general Partnership)
Current assignee: Fanchang Changling Casting Co ltd
Priority date: 2018-08-02
Filing date: 2018-08-02
Publication date: 2020-07-03
Anticipated expiration: 2038-08-02
Also published as: CN109175227A

Abstract

The invention discloses a molding sand recovery processing device, which comprises a grinding box, a stirring box and a feeding barrel, wherein the lower end inside the grinding box is provided with a grinding plate seat, the upper end surface of the grinding plate seat is provided with a metal grinding plate, a power supply device is arranged in the grinding plate seat, the top of the grinding box is provided with a fixed rod, the lower end of the fixed rod is fixed with a slide rod, the slide rod is provided with a slide seat, the lower end of the slide seat is fixed with an upper grinding plate, the side wall of the grinding box is provided with a fixed seat, the upper end of the fixed seat is provided with a reciprocating electric push rod, the upper end of the grinding box is provided with a feeding hole, the lower end of the stirring box is provided with a first motor, the lower end of the stirring box is provided with a discharge hopper, the feeding barrel is internally provided with a spiral feeder, one end of the feeding barrel is provided with a second, this device reduces the consumption of molding sand, improves molding sand reuse rate, improves economic benefits.

Description

Recovery processing device of molding sand

Technical Field

The invention belongs to the technical field of casting, and particularly relates to a recovery processing device for molding sand.

Background

At present, the sand casting industry is widely used for sand casting, namely, raw sand is mixed with a certain amount of binder to manufacture a sand box, so that a large amount of sand is needed in the casting industry, and the casting sand box is discarded as waste after each batch of casting is manufactured, so that the production cost of enterprises is increased, and the living environment is also seriously polluted.

Patent No. 2015204765801 discloses a casting sand recovery unit for sand mould, includes: coarse filter mechanism, hoist mechanism and processing chamber, wherein: the coarse filtering mechanism is positioned at the input end of the lifting mechanism and comprises a filter screen, and the support is arranged on the support; the output end of the lifting mechanism is positioned above the feed inlet of the treatment chamber; the lifting mechanism comprises a rack, a transmission belt arranged on the rack, a driving mechanism for driving the transmission belt to circularly convey, and a sand hopper which is connected with the transmission belt and lifts materials along with the transmission belt to circularly convey; the treatment chamber is internally provided with a vibrating screen which is obliquely arranged in the treatment chamber, and the inner diameter of a screen hole of the vibrating screen is smaller than that of a screen hole of the filter screen; the treatment chamber is provided with a slag discharge port and a discharge port, and the slag discharge port is arranged above the vibrating screen and is positioned at the lowest end of the vibrating screen; the discharge gate sets up in the below of shale shaker and is located the least significant end of process chamber, and this technical scheme only provides the filtration screening effect to the molding sand, but the joining of binder makes the cohesion grow between the molding sand, is difficult to separate, forms the molding sand piece, and the shale shaker can not separate it completely, and the molding sand that the device obtained simultaneously still contains a small amount of binders, influences the normal use of casting next time.

Disclosure of Invention

The invention provides a recycling device for molding sand, which aims to solve the defects in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a recovery processing device for molding sand comprises a grinding box, a stirring box and a feeding barrel, wherein a grinding plate seat is arranged at the lower end inside the grinding box, a metal grinding plate is arranged on the upper end face of the grinding plate seat, a power supply device is arranged in the grinding plate seat, the metal grinding plate is connected with the power supply device through an electric wire, a fixing rod is arranged at the top of the grinding box, a sliding rod parallel to the upper end face of the grinding plate seat is fixed at the lower end of the fixing rod, a sliding seat in sliding connection is arranged on the sliding rod, an upper grinding plate is fixed at the lower end of the sliding seat, the lower end face of the upper grinding plate is parallel to the upper end face of the metal grinding plate and is a rough face, a fixing seat is arranged on the side wall of the grinding box, a reciprocating electric push rod is arranged at the upper end of the fixing seat, the push rod of the reciprocating electric push rod is fixedly connected with the sliding seat, the improved stirring device is characterized in that a first motor is arranged at the upper end of the stirring box, a first main shaft of the first motor is provided with a stirring shaft which penetrates through the stirring box, a plurality of stirring rods are arranged on the stirring shaft, a hopper is arranged at the lower end of the stirring box, the lower end of the hopper is communicated with one end of a feeding barrel, a spiral feeder is arranged inside the feeding barrel, a second motor is arranged at one end of the feeding barrel, a second main shaft of the second motor is connected with the spiral feeder, an air heater is arranged at the upper end of the feeding barrel, an air outlet of the air heater is provided with a ventilation pipe, a plurality of ventilation holes are formed in the upper end barrel wall of the feeding barrel, the ventilation pipe is communicated with the ventilation holes, a second filter screen is arranged below the ventilation.

Preferably, the fixing base includes the fixed plate, be equipped with down tube one and down tube two on the fixed plate, the middle part at down tube one is fixed to two one end of down tube, the fixed plate just is equipped with fixing bolt with the laminating of the incasement wall of milling and fixes.

Preferably, the front end of the stirring rod is provided with a scraping strip, and the scraping strip is attached to the inner wall of the stirring box.

Preferably, go out the hopper and be detachable construction, go out hopper upper end and agitator tank lower extreme and be equipped with connecting bolt and connect, the junction that goes out hopper and agitator tank is equipped with the rubber strip, the inner wall that goes out the hopper is equipped with filter screen one.

Preferably, the included angle between the upper grinding plate and the horizontal line and the included angle between the metal grinding plate and the horizontal line are 25-35 degrees, and the vertical distance between the upper grinding plate and the grinding plate seat is 3-5 mm.

The beneficial effect of adopting above technical scheme is: the invention relates to a device for recovering and treating molding sand, which has the following working principle: adding water into foundry molding sand, mixing and pouring the foundry molding sand into a feeding hole, starting a reciprocating electric push rod, pushing a sliding seat to do reciprocating motion along a sliding rod by the reciprocating electric push rod, driving an upper grinding plate to do reciprocating motion along the upper end surface of a metal grinding plate by the sliding seat, enabling the molding sand to flow downwards along the metal grinding plate, simultaneously grinding and crushing the molding sand by the upper grinding plate and the metal grinding plate, crushing the molding sand bonded into blocks, simultaneously electrifying and heating the metal grinding plate by a power supply device to heat the metal grinding plate, heating the molding sand by the metal grinding plate to melt a binder in the molding sand, facilitating the separation of the molding sand and the binder, enabling the crushed and refined molding sand to enter a stirring box from a discharging hole, starting a first motor, rotating a stirring shaft, stirring the stirring rod to stir a mixture of the molding sand and the water to completely disperse the molding sand blocks, then enabling the molding sand to enter a feeding barrel, make the molding sand remove to right angle pay-off mouth, start the air heater, the air heater blows off hot-blastly and blows to the molding sand through ventilation pipe and ventilation hole, the molding sand is at the in-process that removes, the binder mixes in the aquatic from filter screen two fall into collecting vat one in, hot-blastly weather remaining liquid fast, make the molding sand resume dry and from the right angle discharge gate get into in the collecting vat two, this device easy operation can be fast with the molding sand recovery processing one-tenth new sand and carry out reuse, reduce the consumption of molding sand, improve molding sand reuse rate, economic benefits is improved.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the mounting bracket of the present invention;

fig. 3 is an enlarged view of the invention at a.

Wherein: 1-grinding box, 2-fixed seat, 21-first diagonal rod, 22-second diagonal rod, 23-fixed bolt, 24-fixed plate, 3-reciprocating electric push rod, 4-fixed rod, 5-sliding rod, 6-sliding seat, 7-upper grinding plate, 8-feeding hole, 9-discharging hole, 10-grinding plate seat, 101-power supply device, 102-metal grinding plate, 11-first motor, 12-stirring box, 13-stirring shaft, 131-stirring rod, 132-scraping bar, 14-discharging hopper, 141-first filter screen, 142-connecting bolt, 143-rubber bar, 15-feeding barrel, 151-second motor, 152-spiral feeder, 153-second filter screen, 154-vent hole, 155-right-angle discharging hole, 16-hot air blower, 161-ventilating pipe, 17-collecting tank I, 18-collecting tank II.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

As shown in fig. 1-3, the invention is a molding sand recycling device, which comprises a grinding box 1, a stirring box 12 and a feeding cylinder 15, wherein a grinding plate seat 10 is arranged at the lower end inside the grinding box 1, a metal grinding plate 102 is arranged on the upper end surface of the grinding plate seat 10, a power supply device 101 is arranged in the grinding plate seat 10, the metal grinding plate 102 is connected with the power supply device 101 through an electric wire, a fixing rod 4 is arranged at the top of the grinding box 1, a sliding rod 5 parallel to the upper end surface of the grinding plate seat 10 is fixed at the lower end of the fixing rod 4, a sliding seat 6 in sliding connection is arranged on the sliding rod 5, an upper grinding plate 7 is fixed at the lower end of the sliding seat 6, the lower end surface of the upper grinding plate 7 is parallel to the upper end surface of the metal grinding plate 102 and is a rough surface, a fixing seat 2 is arranged on the side wall of the grinding box 1, a reciprocating electric push rod 3 is arranged at the upper, the upper end of the milling box 1 is provided with a feeding hole 8, the lower end of the milling box 1 is provided with a discharging hole 9, the discharging hole 9 is communicated with the upper end of a stirring box 12, the upper end of the stirring box 12 is provided with a motor I11, a main shaft of the motor I11 is provided with a stirring shaft 13 which penetrates into the stirring box 12, the stirring shaft 13 is provided with a plurality of stirring rods 131, the lower end of the stirring box 12 is provided with a discharging hopper 14, the lower end of the discharging hopper 14 is communicated with one end of a feeding barrel 15, the inside of the feeding barrel 15 is provided with a spiral feeder 152, one end of the feeding barrel 15 is provided with a motor II 151, the main shaft of the motor II 151 is connected with the spiral feeder 152, the upper end of the feeding barrel 15 is provided with an air heater 16, an air outlet of the air heater 16 is provided with a ventilation pipe 161, the upper end of the feeding barrel 15, a first collecting groove 17 is arranged below the second filter screen 153, a right-angle discharge hole 155 is arranged at the other end of the feeding barrel 15, and a second collecting groove 18 is arranged below the right-angle discharge hole 155.

In this embodiment, fixing base 2 includes fixed plate 24, be equipped with down tube one 21 and two 22 of down tube on the fixed plate 24, the middle part at down tube one 21 is fixed to two 22 one ends of down tube, fixed plate 24 and the laminating of grinding case 1 inner wall and be equipped with fixing bolt 23 fixed, sound construction has good supporting role to reciprocal electric putter 3.

In this embodiment, the front end of puddler 131 is equipped with scrapes strip 132, scrape strip 132 and the laminating of agitator tank 12 inner wall, strike off the molding sand of agitator tank 12 inner wall when the stirring, avoid leaving over at agitator tank 12 inner wall, be difficult to the clearance.

In this embodiment, go out hopper 14 and be detachable construction, it is equipped with connecting bolt 142 and connects to go out hopper 14 upper end and agitator tank 12 lower extreme, it is equipped with rubber strip 143 to go out hopper 14 and agitator tank 12 junction, the inner wall that goes out hopper 14 is equipped with filter screen 141, and the rubber sleeve improves the leakproofness, prevents the water leakage in the molding sand, and filter screen 141 filters the casting residue of mixing in the molding sand, removes connecting bolt 142, opens out hopper 14, conveniently carries out inside clearance.

In this embodiment, the included angle between the upper grinding plate 7 and the metal grinding plate 102 and the horizontal line is 25-35 °, and the vertical distance between the upper grinding plate 7 and the grinding plate base 10 is 3-5mm, so that the molding sand slowly slides down, and the grinding effect is improved.

Based on the above, the device for recovering and treating the molding sand, which is structured in the invention, has the working principle that: the casting molding sand is mixed with water and poured into a feeding hole 8, a reciprocating electric push rod 3 is started, the reciprocating electric push rod 3 pushes a sliding seat 6 to reciprocate along a sliding rod 5, the sliding seat 6 drives an upper grinding plate 7 to reciprocate along the upper end face of a metal grinding plate 102, the molding sand flows downwards along the metal grinding plate 102, the upper grinding plate 7 and the metal grinding plate 102 grind and crush the molding sand which is bonded into blocks, meanwhile, a power supply device 101 energizes and heats the metal grinding plate 102 to heat the metal grinding plate, the metal grinding plate 102 heats the molding sand, the binder in the molding sand is melted by heating to facilitate the separation of the molding sand and the binder, the milled and refined molding sand enters a stirring box 12 from a discharging hole 9, a motor I11 is started, a stirring shaft 13 is rotated, the stirring rod 131 stirs the mixture of the molding sand and the water to completely disperse the molding sand blocks, and then the molding sand enters a feeding barrel 15 from a discharging hopper 14, two 151 starting motors, two 151 motors drive screw feeder 152 and rotate, make the molding sand remove to right angle pay-off mouth, start air heater 16, air heater 16 blows off hot-blastly and blows to the molding sand through ventilation pipe 161 and ventilation hole 154, the molding sand is at the in-process that removes, the binder mixes in the aquatic from filter screen two 153 fall into collecting vat 17 in, hot-blastly weather remaining liquid fast, make the molding sand resume dry and get into in collecting vat two 18 from right angle discharge gate 155, this device easy operation, can carry out reuse with molding sand recovery processing one-tenth new sand fast, reduce the consumption of molding sand, the molding sand reuse rate is improved, economic benefits is improved.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various insubstantial modifications of the invention based on the principles and technical solutions of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. The utility model provides a recovery processing device of molding sand which characterized in that: comprises a grinding box (1), a stirring box (12) and a feeding barrel (15), wherein the lower end inside the grinding box (1) is provided with a grinding plate seat (10), the upper end surface of the grinding plate seat (10) is provided with a metal grinding plate (102), a power supply device (101) is arranged in the grinding plate seat (10), the metal grinding plate (102) is connected with the power supply device (101) through an electric wire, the top of the grinding box (1) is provided with a fixed rod (4), the lower end of the fixed rod (4) is fixed with a slide rod (5) parallel to the upper end surface of the grinding plate seat (10), the slide rod (5) is provided with a slide seat (6) in sliding connection, the lower end of the slide seat (6) is fixed with an upper grinding plate (7), the lower end surface of the upper grinding plate (7) is parallel to the upper end surface of the metal grinding plate (102) and is a rough surface, the side wall of the grinding box (1) is provided with a fixed seat (2), the, the push rod of the reciprocating electric push rod (3) is fixedly connected with the sliding seat (6), the upper end of the grinding box (1) is provided with a feed inlet (8), the lower end of the grinding box (1) is provided with a discharge outlet (9), the discharge outlet (9) is communicated with the upper end of the stirring box (12), the upper end of the stirring box (12) is provided with a first motor (11), a main shaft of the first motor (11) is provided with a stirring shaft (13) which penetrates into the stirring box (12), the stirring shaft (13) is provided with a plurality of stirring rods (131), the lower end of the stirring box (12) is provided with a discharge hopper (14), the lower end of the discharge hopper (14) is communicated with one end of a feed barrel (15), a spiral feeder (152) is arranged inside the feed barrel (15), one end of the feed barrel (15) is provided with a second motor (151), and the main shaft of the second motor (151, an air heater (16) is arranged at the upper end of the feeding barrel (15), an air outlet of the air heater (16) is provided with a vent pipe (161), the upper barrel wall of the feeding barrel (15) is provided with a plurality of vent holes (154), the vent pipe (161) is communicated with the vent holes (154), a second filter screen (153) is arranged below the vent holes (154), a first collecting groove (17) is arranged below the second filter screen (153), a right-angle discharging hole (155) is arranged at the other end of the feeding barrel (15), and a second collecting groove (18) is arranged below the right-angle discharging hole (155); the fixed seat (2) comprises a fixed plate (24), a first inclined rod (21) and a second inclined rod (22) are arranged on the fixed plate (24), one end of the second inclined rod (22) is fixed in the middle of the first inclined rod (21), and the fixed plate (24) is attached to the inner wall of the grinding box (1) and is fixed by a fixing bolt (23); the front end of the stirring rod (131) is provided with a scraping strip (132), and the scraping strip (132) is attached to the inner wall of the stirring box (12); the discharging hopper (14) is of a detachable structure, the upper end of the discharging hopper (14) is connected with the lower end of the stirring box (12) through a connecting bolt (142), a rubber strip (143) is arranged at the connecting position of the discharging hopper (14) and the stirring box (12), and a first filter screen (141) is arranged on the inner wall of the discharging hopper (14); the included angle between the upper grinding plate (7) and the metal grinding plate (102) and the horizontal line is 25-35 degrees, and the vertical distance between the upper grinding plate (7) and the grinding plate seat (10) is 3-5 mm.