Dust removal device for sand supply pump

Abstract

The utility model relates to a dust removal device for a sand supply pump, which belongs to the field of casting facilities and is characterized in that a sand storage tank is fixedly connected with a support and movably connected with a first-stage guide pipe of the sand supply pump, the first-stage guide pipe of the sand supply pump is fixedly connected with a rotary joint and a centrifugal fan, and the rotary joint is movably connected with a second-stage guide pipe of the sand supply pump; the sand supply pump secondary guide pipe is fixedly connected with the sand outlet telescopic pipe and the air guide pipe, the sand outlet telescopic pipe is fixedly connected with the flow guide cover, the centrifugal fan is fixedly connected with the high-speed motor and the steel wire hose, the centrifugal fan is movably connected with the dust removal bag, the steel wire hose is fixedly connected with the air guide pipe, and the air guide pipe is fixedly connected with the air inlet telescopic pipe. In the sand supply process of the sand supply pump, the centrifugal fan sucks dust into the dust removal bag through the steel wire hose, the air guide pipe, the dust removal telescopic pipe and the air guide cover, and the dual effects of sand supply and dust removal are achieved.

Description

Technical Field

[0001] The utility model discloses a dust removal device for a sand supply pump, belongs to the field of casting facilities, and relates to a device for synchronously removing dust from a sand supply pump during the sand supply process. Background Art

[0002] Sand supply pump, a conveying pump that delivers the foundry sand in the sand storage tank into the sand box through a screw propeller is called a sand supply pump. At present, there are two types of sand supply pumps, one is a sand supply pump installed above the sand storage tank, and the other is a sand supply pump installed at the bottom of the sand storage tank, but both sand supply pumps do not have dust removal devices. When the foundry sand is forcibly pushed by the screw propeller inside the sand supply pump, strong friction will also occur between the foundry sands. After friction, dust will fall off the surface of the foundry sand, and then fall into the sand box with the foundry sand. However, the dust particles are small and light in weight and will float around and pollute the air. Therefore, a sand supply pump that can both supply sand and remove dust is needed.

[0003] Application number: 2023207624848 A sand storage tank with a built-in sand supply pump belongs to the field of casting facilities, the inner wall of the sand storage tank is connected to the lifter, the bottom of the sand storage tank is connected to the hopper, the upper mouth of the hopper is connected to the base, the top of the lifter is connected to the positioning retaining ring, the top of the lifter is connected to the rotary joint, the top of the lifter is connected to the reduction motor, a feed port is arranged at the bottom of the lifter, the bottom of the lifter is connected to the graphite bearing, a discharge port is arranged at the top of the lifter, a lifting shaft is installed inside the lifter, a discharge port is arranged at the bottom of the rotary joint, the discharge port is connected to the discharge pipe, the discharge pipe is connected to the wire hose, the sand storage tank and the sand supply pump are integrated, the reduction motor drives the lifting shaft inside the lifter to rotate, and the casting sand in the sand storage tank is directly lifted to the discharge port through the feeding port through the lifting blades, and then freely falls into the discharge pipe through the discharge port, and finally falls into the sand box through the wire hose.

[0004] Application number: 2022229318173 A sand supply pump belongs to the field of casting facilities. A semicircular bracket is installed on the top of the base, a cylindrical storage tank is installed on the top of the bracket, a cylindrical rotating joint is installed at the bottom of the storage tank, a cylindrical feeding pipe is installed on the side of the rotating joint, a spiral lifter is installed inside the feeding pipe, a reduction motor is installed at the top right of the feeding pipe, a cylindrical discharging pipe is installed at the bottom right of the feeding pipe, a conical crusher is installed below the discharging pipe, and a wire hose is installed at the bottom of the crusher. The lifter is driven by the reduction motor to rotate to lift the foundry sand that falls into the rotating joint from the storage tank and is sent into the discharging pipe. The foundry sand falls into the crusher through the discharging pipe and is then crushed by the rapidly rotating chain. The crushed foundry sand falls into the sand box through the wire hose, thus realizing a sand supply pump integrating storage, feeding and crushing.

[0005] The above-mentioned sand storage tank with its own sand supply pump delivers the casting sand into the sand box through the sand storage tank, lifter, hopper, base, positioning retaining ring, rotary joint, reduction motor, feed port, graphite bearing, discharge port, lifting shaft, discharge port, discharge pipe, and wire hose. The above-mentioned sand supply delivers the casting sand into the sand box through the base, bracket, storage tank, rotary joint, feed pipe, lifter, reduction motor, discharge pipe, crusher, and wire hose. Both of the above-mentioned sand supply pumps have no dust removal facilities. Utility Model Content

[0006] The utility model discloses a dust removal device for a sand supply pump. A centrifugal fan, a steel wire hose, an air guide pipe, a dust removal telescopic pipe and an air guide cover are installed on a sand supply pump below an integrated sand storage tank. During the sand supply process of the sand supply pump, the centrifugal fan sucks dust into a dust removal bag through the steel wire hose, the air guide pipe, the dust removal telescopic pipe and the air guide cover.

[0007] The technical solution of the utility model is as follows: a sand supply pump dust removal device comprises a sand storage tank 1, the sand storage tank 1 is fixedly connected to the bracket 2, the sand storage tank 1 is movably connected to the primary conduit 3 of the sand supply pump, the primary conduit 3 of the sand supply pump is fixedly connected to the rotary joint 4 and the centrifugal fan 7, the rotary joint 4 is movably connected to the secondary conduit 5 of the sand supply pump, the secondary conduit 5 of the sand supply pump is fixedly connected to the sand outlet telescopic pipe 6 and the air guide pipe 11, the sand outlet telescopic pipe 6 is fixedly connected to the guide cover 13, the centrifugal fan 7 is connected to the high The high-speed motor 8 and the steel wire hose 10 are fixedly connected, the centrifugal fan 7 is movably connected to the dust bag 9, the steel wire hose 10 is fixedly connected to the air duct 11, the air duct 11 is fixedly connected to the air inlet telescopic tube 12, the air inlet telescopic tube 12 is fixedly connected to the air deflector 13, the high-speed motor 8 is connected to the power distribution cabinet through a power cord, and the centrifugal fan 7, the high-speed motor 8, the dust bag 9, the steel wire hose 10, the air duct 11, the air inlet telescopic tube 12, and the air deflector 13 are interconnected to form a dust removal device.

[0008] Furthermore, the sand storage tank 1 is cylindrical on the top and conical on the bottom, and 3-4 cylindrical brackets 2 are vertically installed downward on the edge of the bottom of the sand storage tank 1.

[0009] Furthermore, the bottom of the sand storage tank 1 is connected to the left side of the primary conduit 3 of the sand supply pump through a right-angle joint, and the inside is communicated.

[0010] Furthermore, the right side of the primary conduit 3 of the sand supply pump is connected to the side of the upper half of the rotary joint 4 and is internally connected, the side of the lower half of the rotary joint 4 is connected to the right side of the secondary conduit 5 of the sand supply pump and is internally connected, and the left side of the secondary conduit 5 of the sand supply pump is connected to the top of the sand outlet telescopic pipe 6 through a right-angle joint and is internally connected.

[0011] Furthermore, the centrifugal fan 7 is installed on the first-level duct 3 of the sand supply pump, a high-speed motor 8 is installed in the center of the left side of the centrifugal fan 7, a dust bag 9 made of cotton and linen is installed on the outlet of the centrifugal fan 7, the mesh diameter of the dust bag 9 is less than 0.2 mm, and the inlet of the centrifugal fan 7 is connected to the outlet of the steel wire hose 10.

[0012] Furthermore, the air duct 11 is J-shaped and installed on the secondary conduit 5 of the sand supply pump through a connecting plate. The outlet of the air duct 11 is connected to the inlet of the steel hose 10 , and the inlet of the air duct 11 is connected to the outlet of the air inlet telescopic tube 12 .

[0013] Furthermore, the air deflector 13 is a basin-shaped rubber product with two circular openings, wherein the bottom of the sand discharge telescopic tube 6 extends to the inside of the left opening of the air deflector 13 , and the bottom of the air inlet telescopic tube 12 is connected to the top of the right opening of the air deflector 13 .

[0014] Furthermore, the sand discharge telescopic tube 6 and the air inlet telescopic tube 12 are both rubber hoses with a spiral outer shape.

[0015] Beneficial effects: There are currently two types of sand supply pumps, one is installed above the sand storage tank, and the other is installed at the bottom of the sand storage tank. However, both sand supply pumps do not have dust removal devices. When the foundry sand is forcibly pushed by the screw propeller inside the sand supply pump, strong friction will be generated between the foundry sands. After the friction, dust will fall off the surface of the foundry sand and then fall into the sand box together with the foundry sand. However, the dust particles are small and light in weight and will float around and pollute the air.

[0016] A sand supply pump dust removal device has a centrifugal fan, a steel wire hose, an air guide duct, a dust removal telescopic tube and an air guide hood installed on the sand supply pump below an integrated sand storage tank. During the sand supply process of the sand supply pump, the centrifugal fan sucks dust into the dust removal bag through the steel wire hose, the air guide duct, the dust removal telescopic tube and the air guide hood, thereby achieving the dual functions of both sand supply and dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a sand supply pump dust removal device;

[0018] In the figure, 1. sand storage tank; 2. bracket; 3. primary conduit of sand supply pump; 4. rotary joint; 5. secondary conduit of sand supply pump; 6. sand outlet telescopic pipe; 7. centrifugal fan (air volume>0.1m 3 / S); 8. High-speed motor (AC380V / 0.5-2kw); 9. Dust removal bag; 10. Steel wire hose; 11. Air duct; 12. Air inlet telescopic tube; 13. Air deflector. DETAILED DESCRIPTION

[0019] Combined with the accompanying drawings and the accompanying drawings, the shape and structure of the utility model are described in detail:

[0020] Embodiment 1

[0021] See attached Figure 1 A sand supply pump dust removal device includes a sand storage tank 1, the sand storage tank 1 is used to store foundry sand, the sand storage tank 1 is fixedly connected to a bracket 2, the bracket 2 is used to support the sand storage tank 1, the sand storage tank 1 is movably connected to a primary conduit 3 of a sand supply pump, the primary conduit 3 of the sand supply pump is used to transport foundry sand, the primary conduit 3 of the sand supply pump is fixedly connected to a rotary joint 4 and a centrifugal fan 7, the rotary joint 4 is used as a rotating device between the primary conduit 3 of the sand supply pump and the secondary conduit 5 of the sand supply pump, the centrifugal fan 7 is used for exhausting air, the rotary joint 4 is movably connected to the secondary conduit 5 of the sand supply pump, the secondary conduit 5 of the sand supply pump is used to transport foundry sand, the secondary conduit 5 of the sand supply pump is fixedly connected to a sand discharge telescopic pipe 6 and an air guide pipe 11, the sand discharge telescopic pipe 6 is used to directional transport foundry sand, the sand discharge telescopic pipe 6 is fixedly connected to a guide cover 13, the guide cover 13 is used to prevent dust diffusion, the centrifugal fan 7 is connected to a high-speed motor 8, The steel wire hose 10 is fixedly connected, the high-speed motor 8 is used to drive the centrifugal fan to rotate at high speed to generate centrifugal force, the steel wire hose 10 is used to introduce the airflow in the air duct 11 into the centrifugal fan 7, the centrifugal fan 7 is movably connected to the dust bag 9, the dust bag 9 is used to collect dust and filter air, the steel wire hose 10 is fixedly connected to the air duct 11, the air duct 11 is used to introduce the airflow in the air inlet telescopic tube 12 into the steel wire hose 10, the air duct 11 is fixedly connected to the air inlet telescopic tube 12, the air inlet telescopic tube 12 is used to introduce the airflow and dust in the air guide cover 13 into the air duct 11, the air inlet telescopic tube 12 is fixedly connected to the air guide cover 13, the high-speed motor 8 is connected to the power distribution cabinet through a power cord, the centrifugal fan 7, the high-speed motor 8, the dust bag 9, the steel wire hose 10, the air duct 11, the air inlet telescopic tube 12, and the air guide cover 13 are interconnected to form a dust removal device.

[0022] See attached Figure 1 The sand storage tank 1 is cylindrical on the top and conical on the bottom. 3-4 cylindrical brackets 2 are vertically installed downward on the edge of the bottom of the sand storage tank 1.

[0023] See attached Figure 1 The bottom of the sand storage tank 1 is connected to the left side of the primary conduit 3 of the sand supply pump through a right-angle joint and is communicated with the inside.

[0024] See attached Figure 1The right side of the primary conduit 3 of the sand supply pump is connected to the side of the upper half of the rotary joint 4 and is internally connected. The side of the lower half of the rotary joint 4 is connected to the right side of the secondary conduit 5 of the sand supply pump and is internally connected. The left side of the secondary conduit 5 of the sand supply pump is connected to the top of the sand outlet telescopic pipe 6 through a right-angle joint and is internally connected.

[0025] See attached Figure 1 The centrifugal fan 7 is installed on the first-level conduit 3 of the sand supply pump. A high-speed motor 8 is installed in the center of the left side of the centrifugal fan 7. A dust bag 9 made of cotton and linen is installed on the outlet of the centrifugal fan 7. The mesh diameter of the dust bag 9 is less than 0.2 mm. The inlet of the centrifugal fan 7 is connected to the outlet of the steel wire hose 10.

[0026] See attached Figure 1 The air duct 11 is J-shaped and is installed on the secondary conduit 5 of the sand supply pump through a connecting plate. The outlet of the air duct 11 is connected to the inlet of the steel wire hose 10 , and the inlet of the air duct 11 is connected to the outlet of the air inlet telescopic tube 12 .

[0027] See attached Figure 1 The deflector 13 is a basin-shaped rubber product with two circular openings, wherein the bottom of the sand discharge telescopic tube 6 extends to the inside of the left opening of the deflector 13, and the bottom of the air inlet telescopic tube 12 is connected to the top of the right opening of the deflector 13.

[0028] See attached Figure 1 The sand discharge telescopic tube 6 and the air inlet telescopic tube 12 are both rubber hoses with a spiral outer shape.

[0029] Briefly describe the use process of a sand supply pump dust removal device. The worker turns on the No. 1 reduction motor, No. 2 reduction motor and high-speed motor 8 of the sand supply pump through the power distribution cabinet. The No. 1 reduction motor and No. 2 reduction motor of the sand supply pump respectively drive the spiral propellers inside the primary conduit 3 and the secondary conduit 5 of the sand supply pump to rotate rapidly. The casting sand enters the primary conduit 3 of the sand supply pump through the bottom of the sand storage tank 1 and is pushed into the rotary joint 4 by the spiral propeller. The casting sand falls into the secondary conduit 5 of the sand supply pump through the rotary joint 4, and then is pushed into the sand outlet telescopic pipe 6 by the spiral propeller. The sand falls into the sand box through the sand discharging telescopic pipe 6 and the air guide cover 13. At this time, the centrifugal force generated by the high-speed rotation of the centrifugal fan sucks the air and dust inside and at the edge of the air guide cover 13 into the air inlet telescopic pipe 12, and the air and dust are then sucked into the centrifugal fan through the air guide pipe 11 and the steel wire hose 10. The air entering the centrifugal fan is pressurized by the centrifugal fan and sent into the dust removal bag 9. After the dust enters the dust removal bag 9 together with the air, the air is squeezed out of the dust removal bag 9 through the cloth eyes, and the dust is collected inside the dust removal bag 9. The above achieves the dual effects of both supplying sand and removing dust.

Claims

1. A dust removal device for a sand supply pump, comprising a sand storage tank, characterized in that the sand storage tank is fixedly connected to a bracket, the sand storage tank is movably connected to a primary conduit of the sand supply pump, the primary conduit of the sand supply pump is fixedly connected to a rotary joint and a centrifugal fan, the rotary joint is movably connected to a secondary conduit of the sand supply pump, the secondary conduit of the sand supply pump is fixedly connected to a sand outlet telescopic pipe and an air guide pipe, the sand outlet telescopic pipe is fixedly connected to a shroud, the centrifugal fan is fixedly connected to a high-speed motor and a steel wire hose, the centrifugal fan is movably connected to a dust removal bag, the steel wire hose is fixedly connected to the air guide pipe, the air guide pipe is fixedly connected to an air inlet telescopic pipe, the air inlet telescopic pipe is fixedly connected to the shroud, the high-speed motor is connected to a power distribution cabinet through a power cord, and the centrifugal fan, the high-speed motor, the dust removal bag, the steel wire hose, the air guide pipe, the air inlet telescopic pipe, and the shroud are interconnected to form a dust removal device.

2. A sand supply pump dust removal device according to claim 1, characterized in that The upper part of the sand storage tank is cylindrical and the lower part is conical. 3-4 cylindrical brackets are vertically installed downward from the edge of the bottom of the sand storage tank.

3. A sand supply pump dust removal device according to claim 1 or 2, characterized in that The bottom of the sand storage tank is connected to the left side of the primary conduit of the sand supply pump through a right-angle joint and is communicated internally.

4. A dust removal device for a sand supply pump according to claim 1, characterized in that The right side of the primary conduit of the sand supply pump is connected to the side of the upper half of the rotary joint and is internally connected. The side of the lower half of the rotary joint is connected to the right side of the secondary conduit of the sand supply pump and is internally connected. The left side of the secondary conduit of the sand supply pump is connected to the top of the sand outlet telescopic pipe through a right-angle joint and is internally connected.

5. A sand supply pump dust removal device according to claim 1 or 4, characterized in that The centrifugal fan is installed on the first-stage duct of the sand supply pump. A high-speed motor is installed in the center of the left side of the centrifugal fan. A dust bag made of cotton and linen is installed on the outlet of the centrifugal fan. The mesh diameter of the dust bag is less than 0.2mm. The inlet of the centrifugal fan is connected to the outlet of the steel wire hose.

6. A sand supply pump dust removal device according to claim 1 or 4, characterized in that The air guide pipe is J-shaped and is installed on the secondary conduit of the sand supply pump through a connecting plate. The outlet of the air guide pipe is connected to the inlet of the steel wire hose, and the inlet of the air guide pipe is connected to the outlet of the air inlet telescopic pipe.

7. A sand supply pump dust removal device according to claim 1, characterized in that The air deflector is a basin-shaped rubber product with two circular openings arranged on it, wherein the bottom of the sand-discharging telescopic tube extends to the inside of the left opening of the air deflector, and the bottom of the air-inlet telescopic tube is connected to the top of the right opening of the air deflector.

8. A sand supply pump dust removal device according to claim 1, characterized in that The sand discharge telescopic pipe and the air inlet telescopic pipe are both rubber hoses with spiral outer shapes.

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