CN2373754Y

CN2373754Y - Graphite expansion device

Info

Publication number: CN2373754Y
Application number: CN99209553U
Authority: CN
Inventors: 崔建生; 姜明根; 崔帮明
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-27
Filing date: 1999-04-27
Publication date: 2000-04-12
Anticipated expiration: 2009-04-27

Abstract

The utility model relates to a new graphite expansion device which is used for puffing acid graphite. The utility model comprises a graphite expansion furnace, a combustion system, a feeding system, a discharging device, and a deduster. The combustion system changes the original gas combustion form into an oil combustion form, adopts a rotating wind providing device of rotating wind which is composed of a flow guiding wind chamber and a flow guiding wind plate, and changes settling type dust removing to pulse bag type dust removing. The utility model has the advantages of safe operation, high efficiency, energy saving good dust removing efficiency, and high production quality. The expansion graphite can be widely used in the fabrication of various sealing parts, wear-resistant parts, graphite plates, flexible graphite paper, etc.

Description

The novel graphite expansion gear

The utility model relates to the machining graphite technology, mainly refers to be used for the processing units of graphite expansion.

Graphite is with characteristics such as high temperature resistant, high-wearing features, and its goods are widely used in the modern industry numerous areas, by graphite to its finished product, generally need process by selected graphite → acidifying → expanded → finished product course of processing, with the expansion gear of acidifying graphite expansion, the domestic electrothermal tube type of heating that adopt are by row's electrically heated stream pipe with acidifying graphite more, it is promptly expanded to enter a high temperature chamber again, because of the defective on this flow process, make the graphite heating inequality, expanded irregular, insufficient, efficient is low, and is of poor quality.The introduction overseas equipment is arranged, adopt expansion furnace, combustion gas type of heating, its technology is advanced, but because of burning coal gas, control is complicated, and is dangerous, and investment is big, and founding the factory limited by the coal gas source, and this device dust removing effects is relatively poor.

The goal of the invention of the utility model is for overcoming the deficiency of prior art, and existing introducing equipment is improved, and changes combustion gas and is heated to be fuel Heating, and changing the sedimentation dedusting is pulse bag-type dust-removing, makes it operating safety, efficient energy-saving, reduced investment, good dedusting effect.

The utility model is so implemented, and it comprises expansion furnace (1), firing system (2), feed system (20), dumping device (25) and fly-ash separator (28) five parts, is characterised in that the fuel of firing system is oil fuel; This system comprises a combustion chamber and its oil spout, air supply device, combustion chamber (3) is a cavity that is made of shell (4) inner lining refractory (5), join with expansion furnace, fueling injection equipment is by inserting oil nozzle in it, connect oil pump (10) through oil pipe (9) and constitute from the end, combustion chamber, air supply device is by end, combustion chamber blast orifice (11), constitute through airduct (13) machine (14) of giving a dinner for a visitor from afar; Tails dedusting device (28) is a pulse bag type dust collector.

As preferred version of the present utility model, be to form a cyclone that constitutes by water conservancy diversion wind chamber and water conservancy diversion aerofoil in cavity end, combustion chamber, make burning more abundant, heat more even.

The utility model accompanying drawing

Accompanying drawing 1, the utility model front view

Accompanying drawing 2, the utility model vertical view

Accompanying drawing 3, the utility model fly-ash separator front view

Accompanying drawing 4,5 the utility model cyclones first embodiment master looks, the A-A sectional view

Accompanying drawing 6,7 the utility model cyclones second embodiment master looks, the B-B sectional view

Below in conjunction with embodiment and relevant accompanying drawing the utility model is elaborated.

The utility model structure is seen shown in the accompanying

drawing

1,2,3, by firing system (2), graphite expansion stove (1), in stove feed system (20), the expanded graphite dumping device (25) of feed, and tails dedusting device (28) five most of formations, acidifying graphite adds the feeding funnel, be fed in the expansion furnace (1) through carrier pipe (22), spout (23) by strand cage, high pressure positive blower (21), spout is established the tympanites furnace bottom, and the graphite that enters in the stove heats burned system, swollenly rise, rise; The vertical garden of expansion furnace (1) column type, continuous expanded graphite in uphill process is transported to dumping device (25) at last, and course of conveying is through a knot screen (24), and impurity sedimentation such as mica is fallen; In the discharging casing filtration unit is arranged, finished product is fallen dump bucket, is drawn off (also can connect the graphite product production line herein) by discharge port (26); Tail gas through induced exhaust (27), enter fly-ash separator (28), it is pulse bag type dust collector that the utility model changes the box fly-ash separator of former sedimentation, tail gas enters dust cleaning case, enter in the filter bag by filter bag (31) is outer, filter after chimney (30) is discharged, each filter bag device opening part is established a cleaning nozzle (32), and is intermittently jet through pulsed, make filter bag shake cleaning, make at the bottom of the case of filter dirt whereabouts.

This device provides heat energy, makes the firing system (2) of graphite expanded by heating to expansion furnace, it is the firing system of a fuel oil, present embodiment burns diesel oil, this firing system comprises a combustion chamber (3) and its oil spout, air supply device, and there is a shell (4) combustion chamber, outer casing inner wall lining one deck refractory materials (5) (refractory brick), form a burner hearth cavity (6) in it, be burning chamber, it and expansion furnace chamber join, and two chambeies communicate; Insert oil nozzle by combustion chamber one end, the one side is driven blast orifice, and oil nozzle has main and auxiliary 2 (7), (8), during blow-on just, oil spout simultaneously, reach temperature required after, stop auxilliary oil nozzle, only by main fuel spray nozzle work, oil nozzle connects injection pump (10), oil pump connected tank by oil pipe (9); Blast orifice (11) connects gas blower (14) by airduct (13); Cavity one end in combustion chamber constitutes a cyclone, can make combustion processes more abundant, good energy-conserving effect, graphite expansion is more even, this cyclone is made of water conservancy diversion wind chamber and water conservancy diversion aerofoil, the utility model provides two kinds of embodiments: one, see accompanying drawing 4,5, form a water conservancy diversion wind chamber (18) around oil nozzle, the tabular water conservancy diversion aerofoil of one helical coil (15) is set in it, blast orifice is located at water conservancy diversion wind chamber one side, the Dou opening inclines, make air-flow that opening part bloats towards spiral stream guidance aerofoil tangential direction, then along helical coil direction rotation ejection.They are two years old, see accompanying drawing 6,7, set up an air compartment (16) and water conservancy diversion wind chamber (18) adjacency, oil nozzle therefrom passes and enters burning chamber, drive blast orifice (11) in (on sidewall or the end wall all can) on the air compartment wall, on the end (17) in water conservancy diversion wind chamber (18), establish air-blast nozzle (12), at least one, along circumferentially distributing, and tilt with end surface, admittedly weld at least one block of water conservancy diversion wing plate (19) with helix angle on the wall of chamber, water conservancy diversion wind chamber (18), the wind that tuyere (12) bloats can be under the guide functions of water conservancy diversion wing plate, the rotation ejection.

Embodiment, according to accompanying

drawing

1,2,3 five most of structure novel graphite expansion gears, its fly-ash separator is a pulse bag type dust collector, its firing system such as accompanying drawing 6, shown in 7, a combustion chamber that joins with expansion furnace is arranged, combustion chamber one end is the cyclone burner that oil nozzle and cyclone constitute, a water conservancy diversion wind chamber (18) is arranged, admittedly weld the water conservancy diversion wing plate (19) of 4 60 ° of helix angles on the wall of chamber, each interval is even, and 4 air-blast nozzles (12) are arranged on end (17), with incline 60 ° of Dou of end face, along garden week uniform distribution, water conservancy diversion wind chamber is in abutting connection with an air compartment, and to opening, oil nozzle enters the combustion chamber through air compartment to blast orifice (11) by its end wall Dou, main fuel spray nozzle is placed in the middle, and auxilliary oil nozzle departs from the center.

During operation, observe the side temperature device of being located at position, expansion body of heater upper, middle and lower, adjust the rotating speed of gas blower (14), feeding fan (21), oil pump (10), induced draft fan (29), make furnace temperature, pressure, feeding capacity and flow velocity reach the technical requirements condition.

Claims

1, a kind of novel graphite expansion gear with the acidifying graphite expansion, comprise: graphite expansion stove (1), the firing system (2) of heat energy is provided, feed system (20), expanded graphite dumping device (25) and tails dedusting device (28) five major parts of feed in stove, it is characterized in that the fuel of firing system is oil fuel; Fuel system comprises a combustion chamber and its oil spout, air supply device, combustion chamber (3) is a cavity that is made of the shell inner lining refractory, join with expansion furnace, fueling injection equipment is by the oil nozzle that inserts from the end, combustion chamber in it, connecing oil pump (10) through oil pipe (9) constitutes, air supply device is by end, combustion chamber blast orifice (11), constitutes through airduct (13) machine (14) of giving a dinner for a visitor from afar; Described tails dedusting device (28) is a pulse bag type dust collector.

2,, it is characterized in that the end, combustion chamber forms a cyclone that is made of water conservancy diversion wind chamber (18) and water conservancy diversion aerofoil according to the described novel graphite expansion gear of claim 1; Oil nozzle has main fuel spray nozzle (7) and auxilliary oil nozzle (8).

3, according to the described novel graphite expansion gear of claim 2, it is characterized in that described cyclone is configured to: around the water conservancy diversion wind chamber (18) of oil nozzle, built-in spiral stream guidance aerofoil (15); Blast orifice (11) is the Dou opening that inclines of water conservancy diversion wind chamber one side.

4, according to the described novel graphite expansion gear of claim 2, it is characterized in that, described cyclone is configured to: with water conservancy diversion wind chamber end abutment one air compartment (16), oil nozzle passes wherein, drive blast orifice (11) on the air compartment wall, end, water conservancy diversion wind chamber (17) is established and is only lacked an air-blast nozzle (12), along circumferentially distributing, with its surface Dou that inclines, at least one spiral stream guidance wing plate (19) with helix angle that lacks is arranged on the wall of water conservancy diversion wind chamber.