CN204388636U - Coreless induction furnace dust trapping device - Google Patents

Abstract

The utility model discloses a smoke and dust collecting device for a coreless induction electric furnace, which has a good smoke and dust collection effect and does not affect the normal operation of the induction furnace. The clamp-shaped ring cover includes a C-shaped annular cover and a conveying cover arranged on the annular cover and communicating with it; at least one air inlet is provided on the annular inner surface of the annular cover, and an air outlet is provided on the conveying cover; The annular cover is installed at the furnace mouth on the top of the furnace body, and the conveying cover communicates with the gas-collecting header through the air outlet; the fan is connected with the gas-collecting header. When the smoke and dust are collected through the set clamp ring cover, the smoke and dust are blocked by the ring cover and sucked away from the air inlet; the inner ring hole of the ring cover is convenient for feeding or discharging, and the C-shaped ring cover is equipped with The gap is convenient for the staff to operate at the furnace mouth of the coreless induction furnace; the gas collecting header can temporarily store the collected smoke and dust.

Description

Fume collection device for coreless induction furnace

technical field

The utility model relates to a dust suction device, in particular to a dust collection device for a coreless induction electric furnace.

Background technique

Coreless induction furnace is a smelting device that uses the principle of electromagnetic induction to melt scrap metal into molten metal. During the smelting process, the debris contained in the scrap metal will generate a large amount of smoke and dust, which contains a large number of harmful oxide particles. If the operator inhales too much smoke and dust, it will seriously affect the health of the body, and the pollution of the smoke and dust to the atmosphere is also Very serious. For example: in the electrolytic aluminum industry, the melting of phosphorus pig iron in the production of anode assembly provides molten iron for pouring of the assembled anode. A large amount of smoke and dust will be produced in the melting process of phosphorus pig iron, which is the main source of pollution in the production of anode assembly. Since the charging and discharging operations of the coreless induction furnace need to be carried out at the furnace mouth at the upper end of the furnace body, it is difficult to collect dust without affecting the normal operation of the coreless induction furnace, and the dust collection rate is low.

Utility model content

The technical problem to be solved by the utility model is to provide a smoke and dust collecting device for a coreless induction furnace which has a good dust collection effect and does not affect the normal operation of the induction furnace.

The technical scheme adopted by the utility model to solve its technical problems is: the smoke and dust collection device of the coreless induction electric furnace, including the furnace body and the fan; A glyph-shaped annular cover and a conveying cover arranged on the annular cover and communicated with it; at least one air inlet is provided on the annular inner surface of the annular cover, and an air outlet is provided on the conveying cover; the annular cover is installed in the furnace At the furnace mouth on the top of the body, the conveying cover communicates with the gas-collecting header through the air outlet; the fan is connected with the gas-collecting header.

Further, the device also includes a dust collector connected with a blower.

Further, the device also includes a top suction hood, a dust suction pipe and a rotating mechanism; the top suction hood is in the shape of an inverted funnel; the dust suction pipe includes a horizontal pipe and a vertical pipe; the upper side of the top suction hood, and the mouth of the top suction hood corresponds to the inner ring hole of the annular cover; The centerline of the standpipe is the centerline of rotation, and the dust suction pipe communicates with the gas-collecting header through the standpipe.

Further, the rotating mechanism includes an outer cylinder and a bearing; the standpipe is connected with the outer cylinder through the bearing.

Further, the rotating mechanism further includes a driving part and a connecting part; a rotating shaft protruding downward is provided at the bottom of the standpipe, and the driving part is connected with the rotating shaft through the connecting part.

Further, the driving part is an oil cylinder, and the connecting part is a gear set; the oil cylinder includes a cylinder body and a piston; the gear set includes a driving gear, a driven gear and a driving gear shaft; the driven gear is installed On the rotating shaft, the driving gear is installed on the driving gear shaft and meshed with the driven gear; the piston of the oil cylinder is fixed, and the cylinder body of the oil cylinder is connected to the peripheral side of the driving gear shaft through a hinge.

Further, the oil cylinder is arranged horizontally.

Further, a heat insulation board is provided at the mouth of the top suction hood, and the heat insulation board is connected with the top suction hood.

Further, a valve is provided between the connection of the conveying cover and the gas collecting header.

Further, the vertical pipe is provided with a valve.

The beneficial effects of the utility model are: when dust is collected by the set clamp ring cover, the smoke dust is blocked by the ring cover and sucked away from the air inlet; the inner ring hole of the ring cover is convenient for discharging operation, and the The glyph-shaped annular cover has a gap, which is convenient for the staff to operate at the furnace mouth of the coreless induction furnace; the gas-collecting header can temporarily store the collected smoke and dust. The dust collector can remove dust from the collected smoke. The top suction hood can further collect the smoke and dust overflowing from the inner ring hole of the annular cover, and the top suction hood is rotatable and will not affect the normal operation of the coreless induction furnace. The driving part and the connecting part realize the semi-automatic rotation of the top suction hood. The horizontal setting of the oil cylinder facilitates the maximum utilization of the output kinetic energy of the oil cylinder. The heat insulation board can reduce the heat of the flue gas and at the same time keep the furnace body warm. The valve is convenient for controlling operation when collecting smoke and dust.

Description of drawings

Fig. 1 is the implementation structural representation of the utility model;

Fig. 2 is the implementation structure schematic diagram of pincer ring cover;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is a schematic cross-sectional structure diagram of a top suction hood;

Fig. 5 is the implementation structure schematic diagram of rotating mechanism;

The marks in the figure are: furnace body 1, furnace mouth 11, fan 2, clamp ring cover 3, ring cover 31, air inlet 311, conveying cover 32, air outlet 321, gas header 4, valve 41, dust collector 5 , top suction cover 6, cover opening 61, heat shield 62, dust suction pipe 7, horizontal pipe 71, vertical pipe 72, rotating shaft 721, rotating mechanism 8, outer cylinder 81, bearing 82, oil cylinder 83, cylinder body 831, piston 832, gear set 84, driving gear 841, driven gear 842 and driving gear shaft 843.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Fig. 1, Fig. 2 and Fig. 3, the soot collection device for a coreless induction furnace includes a furnace body 1, a blower fan 2, a clamp ring cover 3 and a gas collecting header 4; the clamp ring cover 3 includes a A C-shaped annular cover 31 and a conveying cover 32 arranged on the annular cover 31 and communicating with it; the pincer-shaped annular cover 3 is usually made of steel plate; wherein, the annular cover 31 is a C-shaped non-closed annular suction channel, which The annular part can block the smoke and dust, and its notch is convenient for the staff to operate at the furnace mouth 11 of the furnace body 1; the conveying cover 32 is mainly used to transport the smoke and dust collected by the annular cover 31; At least one air inlet 311 is provided on the surface, and an air outlet 321 is provided on the conveying cover 32. Usually, the air outlet 321 is arranged on the end of the conveying cover 32 away from the annular cover 31; the annular cover 31 is installed on the top of the furnace body 1 At the furnace mouth 11, the conveying cover 32 communicates with the gas-collecting header 4 through the air outlet 321; the fan 2 is connected with the gas-collecting header 4; the gas-collecting header 4 is mainly used for the intermediate storage of smoke; the gas-collecting The header 4 is usually fixed by a bracket installed on the workshop floor.

Specifically, in order to avoid direct discharge of dust to pollute the air, the device also includes a dust collector 5 connected to the fan 2; the dust collector 5 is usually a device that can filter dust or absorb dust, and the dust is usually discharged through the smoke window after being absorbed by the dust collector 5 .

As a preferred implementation structure of the present utility model, as shown in Figure 1 and Figure 3, the device also includes a top suction cover 6, a dust suction pipe 7 and a rotating mechanism 8; the top suction cover 6 is in the shape of an inverted funnel; The dust suction pipe 7 includes a horizontal pipe 71 and a vertical pipe 72; the top suction cover 6 is arranged on the upper side of the annular cover 31, and the cover opening 61 of the top suction cover 6 corresponds to the inner ring hole of the annular cover 31; The size of the cover opening 61 is usually equivalent to the size of the inner ring hole of the annular cover 31, or larger than the inner ring hole of the annular cover 31; collection, in order to achieve the maximum dust collection effect; the dust suction pipe 7 communicates with the top suction hood 6 through the horizontal pipe 71, the dust suction pipe 7 is connected with the rotation mechanism 8 through the vertical pipe 72 and is connected with the vertical pipe 72 The center line is the center line of rotation, and the suction pipe 7 communicates with the gas-collecting header 4 through the vertical pipe 72; the vertical pipe 72 has the function of a hollow shaft and can rotate; the rotating mechanism 8 makes the top suction cover 6 take the vertical pipe 72 as the rotating shaft Rotatable; when feeding or discharging is required, turn the top suction hood 6 to move it away from the top of the furnace body 1; after feeding or discharging, just move the top suction hood 6 back; it ensures the effect of dust collection , and will not affect the discharging operation or feeding operation.

Preferably, as shown in FIG. 5 , the rotating mechanism 8 includes an outer cylinder 81 and a bearing 82 ; the standpipe 72 is connected to the outer cylinder 81 through the bearing 82 . In order to make the top suction hood 6 automatically rotate to facilitate the operation of the staff, the rotating mechanism 8 also includes a driving part and a connecting part; The components are connected with the rotating shaft 721 . Wherein, the driving component may be a motor, an air pump, etc., and the connecting component may be a reducer, a belt, a coupling, and the like.

Specifically, as shown in FIG. 5 , the driving part is an oil cylinder 83, and the connecting part is a gear set 84; the oil cylinder 83 includes a cylinder body 831 and a piston 832; the gear set 84 includes a driving gear 841, from Driven gear 842 and drive gear shaft 843; Described driven gear 842 is installed on the rotating shaft 721, and described drive gear 841 is installed on the drive gear shaft 843 and engages with driven gear 842; The piston 832 of oil cylinder 83 is fixed, and The cylinder body 831 of the oil cylinder 83 is connected to the peripheral side of the driving gear shaft 843 by a hinge to drive; the cylinder body 831 of the oil cylinder 83 can also be fixed, and the piston 832 of the oil cylinder 83 is connected to the peripheral side of the driving gear shaft 843 by a hinge. drive. The expansion and contraction of the oil cylinder 83 can drive the driving gear shaft 843 to rotate so that the top suction cover 6 can rotate. In order to maximize the utilization of the kinetic energy output by the oil cylinder 83, the oil cylinder 83 is arranged horizontally.

In order to reduce the heat carried out by the smoke, as shown in FIG. 4 , a heat insulation board 62 is provided at the mouth 61 of the top suction hood 6 , and the heat insulation board 62 is connected with the top suction hood 6 . The heat insulation board 6 also has the effect of heat preservation for the furnace body 1 .

Specifically, in order to facilitate dust collection control, a valve 41 is provided between the connection between the conveying cover 32 and the gas-collecting header 4, and the conveying cover 32 and the gas-collecting header 4 are connected through a valve 41; the vertical pipe 72 Also be provided with valve 41 on. Valve 41 is usually a lightweight butterfly valve.

Claims (10)

1. coreless induction furnace dust trapping device, comprises body of heater (1) and blower fan (2); It is characterized in that: also comprise pincerlike ring cover (3) and gas collection header (4); Described pincerlike ring cover (3) comprises circular cowling (31) in C font and is arranged on the upper and conveying cover (32) be communicated with it of circular cowling (31); The annular inner surface of described circular cowling (31) is provided with at least one air inlet (311), and described conveying cover (32) is provided with air outlet (321); Described circular cowling (31) is arranged on fire door (11) place at body of heater (1) top, and described conveying cover (32) is communicated with gas collection header (4) by air outlet (321); Described blower fan (2) is connected with gas collection header (4).

2. coreless induction furnace dust trapping device as claimed in claim 1, is characterized in that: also comprise the deduster (5) be connected with blower fan (2).

3. coreless induction furnace dust trapping device as claimed in claim 1 or 2, is characterized in that: also comprise top draft hood (6), sweep-up pipe (7) and rotating mechanism (8); Described top draft hood (6) is in falling infundibulate; Described sweep-up pipe (7) comprises transverse tube (71) and vertical tube (72); Described top draft hood (6) is arranged on the upside of circular cowling (31), and the cover mouth (61) of top draft hood (6) is corresponding with the interior annular distance of circular cowling (31); Described sweep-up pipe (7) is communicated with top draft hood (6) by transverse tube (71), sweep-up pipe (7) is rotatably connected by vertical tube (72) and rotating mechanism (8) and with the center line of vertical tube (72) for rotation centerline, and sweep-up pipe (7) is communicated with gas collection header (4) by vertical tube (72).

4. coreless induction furnace dust trapping device as claimed in claim 3, is characterized in that: described rotating mechanism (8) comprises urceolus (81) and bearing (82); Described vertical tube (72) is connected with urceolus (81) by bearing (82).

5. coreless induction furnace dust trapping device as claimed in claim 4, is characterized in that: described rotating mechanism (8) also comprises driver part and attaching parts; The bottom of described vertical tube (72) is provided with the rotating shaft (721) of stretching out down, and described driver part is connected with rotating shaft (721) by attaching parts.

6. coreless induction furnace dust trapping device as claimed in claim 5, it is characterized in that: described driver part is oil cylinder (83), described attaching parts are gear train (84); Described oil cylinder (83) comprises cylinder body (831) and piston (832); Described gear train (84) comprises driving gear (841), driven gear (842) and driving gear shaft (843); Described driven gear (842) is arranged in rotating shaft (721), and described driving gear (841) is arranged on driving gear shaft (843) and goes up and engage with driven gear (842); The piston (832) of described oil cylinder (83) is fixed, and the cylinder body (831) of oil cylinder (83) is connected by all sides of hinge with driving gear shaft (843).

7. coreless induction furnace dust trapping device as claimed in claim 6, is characterized in that: described oil cylinder (83) is horizontally disposed with.

8. the coreless induction furnace dust trapping device according to any one of claim 4 to 7, it is characterized in that: cover mouth (61) place of described top draft hood (6) is provided with thermal insulation board (62), and described thermal insulation board (62) is connected with top draft hood (6).

9. the coreless induction furnace dust trapping device as described in claim 1,2,4,5,6 or 7, is characterized in that: be provided with valve (41) between described conveying cover (32) and the connection of gas collection header (4).

10. the coreless induction furnace dust trapping device as described in claim 4,5,6 or 7, is characterized in that: described vertical tube (72) is provided with valve (41).