CN213699321U

CN213699321U - A high-efficient dust collecting equipment for investment casting

Info

Publication number: CN213699321U
Application number: CN202022512090.6U
Authority: CN
Inventors: 黄华军
Original assignee: JIAHE ZHONGHE CASTING CO Ltd
Current assignee: JIAHE ZHONGHE CASTING CO Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-16
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a high-efficient dust collecting equipment for investment casting, including casing, intake pipe and outlet duct, the bottom is equipped with the reservoir area in the casing, intake-tube connection is located the reservoir area top in the casing lateral wall, install the fan in the intake pipe, casing arc top is located to the outlet duct, HEPA filter screen and metal filter screen are installed respectively from top to bottom in the casing, the HEPA filter screen is protruding type, metal filter screen is concave type, it is equipped with a plurality ofly on the casing outer wall to lie in between metal filter screen and the HEPA filter screen, the metal filter screen below is provided with the fog shower nozzle, and this device has realized that the mode of metal filter screen and HEPA filter screen and washing removes dust, can carry out high-efficient processing to the dust in the tail gas.

Description

A high-efficient dust collecting equipment for investment casting

Technical Field

The utility model relates to a casting equipment technical field specifically is a high-efficient dust collecting equipment for investment casting.

Background

Casting is a method of casting liquid metal into a casting cavity with a shape adapted to a part shape, and obtaining the part or a blank after the liquid metal is cooled and solidified.

The existing dust remover has single dust removing mode, lower dust removing efficiency and difficult realization of the purpose of thorough dust removal,

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient dust collecting equipment for investment casting to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-efficiency dust removing device for investment casting comprises a shell, an air inlet pipe and an air outlet pipe, wherein a water storage area is arranged at the bottom in the shell, the air inlet pipe is connected to the side wall of the shell and is positioned above the water storage area, a fan is installed on the air inlet pipe, the air outlet pipe is arranged at the arc top of the shell, an HEPA filter screen and a metal filter screen are respectively installed in the shell from top to bottom, the HEPA filter screen is of a convex type, the metal filter screen is of a concave type, a plurality of water inlets are formed in the outer wall of the shell and between the metal filter screen and the HEPA filter screen, mist nozzles are arranged below the metal filter screen and are arranged at the bottom of a water pipe, the mist nozzles are all installed at the bottom of the water pipe and communicated with the water storage area through water pipes, a water pump is installed on the water pipe, a rotating shaft is arranged between the mist nozzles, the motor is installed on the outer wall of the shell, a plurality of spoilers arranged at equal intervals are fixed on the periphery of the rotating shaft, and a sewage discharge device is arranged below the water storage area.

As a further aspect of the present invention: the blowdown apparatus includes that the blowdown is fought, sewage suction pipe and soil pick-up pump, the blowdown is fought and is accepted intercommunication water storage area bottom, the blowdown is fought the lateral wall and is passed through sewage suction pipe and sewage pick-up pump intercommunication, the sewage pick-up pump is installed in the casing lateral wall, the blowdown is fought the below and is accepted the buffer box, the buffer box is used for dirty collection and buffer, the valve is still installed to blowdown fill headwall end.

As a further aspect of the present invention: the rotary shafts are horizontally arranged in parallel, the two rotary shafts transmit power through the cooperation of belt wheels and belts, correspondingly, the two spoilers are matched with the rotary shafts, and the spoilers are arranged in a plurality of groups in a staggered axial mode.

As a further aspect of the present invention: the casing is connected through the cooperation of arch and recess by last casing and lower casing and forms, HEPA filter screen least significant end top is located to arch and recess, the installation and the clearance of the HEPA filter screen of being convenient for.

As a further aspect of the present invention: the tail end of the water pipe, which is positioned in the water storage area and is provided with the filter cover.

Compared with the prior art, the beneficial effects of the utility model are that: the mode that combines metal filters and HEPA filter screen and washing removes dust, the spoiler that wherein sets up carries out the interference action to tail gas, make the dust that partial tail gas contains adsorb the spoiler surface, adsorb and the spoiler on surface's mutual exclusion very through the spraying effect of water smoke after by the centrifugation, finally fall in the water storage district, the rotation of spoiler has promoted dust and water smoke homogeneous mixing simultaneously, make the dust obtain subsiding after better getting absorbing water, metal filters and HEPA filter screen's setting can be filtered more large granule and tiny particle respectively, and filth after the filtration can be handled through waste fitting discharging and is collected, make the dust in the tail gas obtain comparatively complete processing.

Drawings

FIG. 1 is a front sectional view of a high efficiency dust extraction apparatus for investment casting.

FIG. 2 is a front view of a high efficiency dust extraction apparatus for investment casting.

FIG. 3 is a schematic view of the mating installation of the upper and lower housings in a high efficiency dust extraction apparatus for investment casting.

FIG. 4 is a schematic structural view of a spoiler in the high-efficiency dust removing apparatus for investment casting.

In the figure: 1. a housing; 101. an upper housing; 102. a lower housing; 2. an air inlet pipe; 3. a fan; 4. an air outlet pipe; 5. a water storage area; 6. a water pipe; 7. a water pump; 8. a mist head; 9. a filter housing; 10. a water inlet; 11. a metal filter screen; 12, HEPA filter screen; 13. a motor; 14. a rotating shaft; 15. a spoiler; 16. a sewage draining hopper; 17. a cache box; 18. a sewage suction pipe; 19. a sewage suction pump.

Detailed Description

Referring to fig. 1-4, in the embodiment of the present invention, a high-efficiency dust removing apparatus for investment casting comprises a housing 1, an air inlet pipe 2 and an air outlet pipe 4, wherein a water storage area 5 is disposed at the bottom of the housing 1, the air inlet pipe 2 is connected to the side wall of the housing 1 and is located above the water storage area 5, a fan 3 is installed on the air inlet pipe 2, the air outlet pipe 4 is disposed at the arc top of the housing 1, an HEPA filter screen 12 and a metal filter screen 11 are respectively installed in the housing 1 from top to bottom, the HEPA filter screen 12 is of a convex type, the metal filter screen 11 is of a concave type, a plurality of water inlets 10 are disposed on the outer wall of the housing 1 between the metal filter screen 11 and the HEPA filter screen 12, a mist nozzle 8 is disposed below the metal filter screen 11, a plurality of mist nozzles 8 are all disposed, a plurality of mist nozzles 8 are all installed at the, install water pump 7 on the water pipe 6, be equipped with pivot 14 between fog shower nozzle 8 and the water storage district 5, pivot 14 rotates and installs between two lateral walls of casing 1 and rotates through the drive of motor 13, motor 13 installs in the outer wall of casing 1, 14 peripheral spoilers 15 that are fixed with a plurality of equidistance settings of pivot, 5 below in water storage district are equipped with waste fitting discharging.

In the embodiment, a tail gas cavity obtained by casting is connected with an air inlet pipe 2, a fan 3 is opened to absorb and transmit tail gas into a shell 1, the tail gas rises from bottom to top, a proper amount of clear water is injected into the shell 1 through a pump 10, water is pumped into the upper part of a water pipe 6 under the action of a water pump 7 and is sprayed out in a mist form through a mist spray nozzle 8 to be combined with dust pollutants in the tail gas, so that dust precipitates and heavy descends to fall into a water storage area 5, part of the dust precipitates to the bottom of the water storage area 5, part of the water floats on the surface of water in the water storage area 5, a starting motor 13 drives a rotating shaft 14 to rotate, two rotating shafts 14 rotating in the same direction drive spoilers 15 to rotate, the rotating spoilers 15 interfere with the tail gas entering from the air inlet pipe 2, so that the dust contained in part of the tail gas adsorbs the surfaces of the spoilers 15, 3 mutual exclusion adsorbed and on the surfaces, finally falls into the water storage area 5, meanwhile, the rotation of the spoiler 15 promotes the uniform mixing of dust and water mist, so that the dust can be better absorbed with water and settled, part of tail gas after the dust settlement continues to rise and is further filtered through the metal filter screen 11, the metal filter screen 11 with the concave design enlarges the contact area of the dust in the tail gas, larger particles of dust are filtered, meanwhile, water is supplemented from 10 to the shell 1 along with the loss of water in the settlement process, the metal filter screen 11 is washed by the water supplemented from 10, the blockage of the metal filter screen 11 is avoided, so that the tail gas rises more smoothly, the filtering effect is ensured, the HEPA filter screen 12 can filter finer particles, the effective rate of the HEPA filter screen to 0.1 micron and 0.3 micron reaches 99.7 percent, the air can pass through, but the fine particles can not pass through, therefore, the treated tail gas is well treated by secondary filtration and the adhesion of the water storage area 5, and then can be directly discharged into the air through the air outlet pipe 4.

Referring to fig. 1, as another preferred embodiment of the present invention, the sewage discharging device includes a sewage discharging bucket 16, a sewage suction pipe 18 and a sewage suction pump 19, the sewage discharging bucket 16 is connected to the bottom of the water storage area 5, the side wall of the sewage discharging bucket 16 is connected to the sewage suction pump 19 through the sewage suction pipe 18, the sewage suction pump 19 is installed on the side wall of the housing 1, a buffer tank 17 is connected to the lower side of the sewage discharging bucket 16, the buffer tank 17 is used for collecting and storing dirt, and a valve is further installed at the end of the wall of the sewage discharging bucket 16.

In this embodiment, the dust and the water that subside to the water storage district 5 bottom combine to become the pollutant and then subside through the effect of toper blowdown fill, and it gets to handle to open valve pollutant and get into cache case 17 after sewage suction pump 19 carries out the sewage suction treatment, and is the same through blowdown fill 16 discharges after the water yield in water storage district 5 such as the dust that can moderate amount float on the surface of water reduces.

Referring to fig. 1 and 4, as another preferred embodiment of the present invention, the rotating shaft 14 is provided with two horizontally arranged rotating shafts 14, two rotating shafts 14 transmit power through the cooperation of a belt wheel and a belt, correspondingly, two spoilers 15 are adapted to the rotating shafts 14, and the spoilers 15 are axially arranged in a plurality of groups in a staggered manner.

In this embodiment, the two rotating shafts 14 arranged in parallel horizontally ensure the mixing of water and gas, improve the mixing effect, avoid a large enough space between the mist spray head 8 and the gas inlet pipe 2 to ensure the water and gas combination, and improve the amount of dust deposition in the tail gas.

Referring to fig. 2, as another preferred embodiment of the present invention, the housing 1 is formed by connecting an upper housing 101 and a lower housing 102 through a protrusion and a groove, and the protrusion and the groove are disposed above the lowest end of the HEPA filter 12, so as to facilitate the installation and cleaning of the HEPA filter 12.

In this embodiment, 12 low ends tops of HEPA filter screen are located to arch and recess, and the change of the HEPA filter screen 12 of being convenient for is handled etc. can be favorable to clearing up 5 parts in water storage area simultaneously.

Referring to fig. 1, as another preferred embodiment of the present invention, a filtering cover 9 is installed at the end of the inner pipe body of the water pipe 6 located in the water storage area 5.

In this embodiment, the arrangement of the filter cover 9 ensures the purity of the circulating spray.

Claims

1. The utility model provides a high-efficient dust collecting equipment for investment casting, includes casing (1), intake pipe (2) and outlet duct (4), its characterized in that, the bottom is equipped with reservoir area (5) in casing (1), intake pipe (2) are connected and are located reservoir area (5) top in casing (1) lateral wall, install fan (3) on intake pipe (2), outlet duct (4) are located casing (1) arc top, install HEPA filter screen (12) and metal filters (11) respectively from top to bottom in casing (1), HEPA filter screen (12) are protruding type, metal filters (11) are concave type, be located and be equipped with a plurality of water inlets (10) on casing (1) outer wall between metal filters (11) and HEPA filter screen (12), metal filters (11) below is provided with fog nozzle (8), fog nozzle (8) are a plurality of levels and evenly arrange, a plurality of fog shower nozzle (8) are all installed in water pipe (6) bottom, fog shower nozzle (8) are through water pipe (6) and water storage district (5) intercommunication, install water pump (7) on water pipe (6), be equipped with pivot (14) between fog shower nozzle (8) and water storage district (5), pivot (14) are rotated and are installed between two lateral walls of casing (1) and rotate through motor (13) drive, motor (13) are installed in the outer wall of casing (1), pivot (14) periphery is fixed with spoiler (15) that a plurality of equidistance set up, water storage district (5) below is equipped with waste fitting discharging.

2. The efficient dust removing equipment for investment casting according to claim 1, wherein the sewage discharging device comprises a sewage discharging hopper (16), a sewage suction pipe (18) and a sewage suction pump (19), the sewage discharging hopper (16) is connected with the bottom of the water storage area (5), the side wall of the sewage discharging hopper (16) is connected with the sewage suction pump (19) through the sewage suction pipe (18), the sewage suction pump (19) is installed on the side wall of the shell (1), a buffer tank (17) is connected below the sewage discharging hopper (16), the buffer tank (17) is used for collecting and buffering dirt, and a valve is further installed at the tail end of the hopper wall of the sewage discharging hopper (16).

3. The efficient dust removing apparatus for investment casting according to claim 1, wherein the rotary shaft (14) is provided with two horizontally arranged in parallel, the two rotary shafts (14) transmit power through the cooperation of a pulley and a belt, and correspondingly, the two spoilers (15) are adapted to the rotary shaft (14).

4. The efficient dust removing device for investment casting according to claim 2, wherein the housing (1) is formed by the upper housing (101) and the lower housing (102) being connected in a protrusion and groove fit, the protrusion and groove being located above the lowest end of the HEPA screen (12).

5. The efficient dust removing apparatus for investment casting according to claim 1 wherein the water pipe (6) is provided with a filter cap (9) at the end of the inner pipe body in the water storage area (5).