CN201089720Y

CN201089720Y - Air supply pressure injection atomizing-cracking device for preparing nitrogen-methanol atmosphere

Info

Publication number: CN201089720Y
Application number: CNU2007200725887U
Authority: CN
Inventors: 钟世雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-18
Filing date: 2007-07-18
Publication date: 2008-07-23
Anticipated expiration: 2017-07-18

Abstract

The utility model relates to an air supply pressure blast atomizing cracker for preparing nitrogen-methanol atmosphere. The utility model is an air supply pressure blast atomizing cracker for preparation of the nitrogen-methanol atmosphere, which can be widely used in heat-treating facilities like mesh-belt furnaces, multifunctional chamber furnaces, pit furnaces, pusher tray furnaces and so on for carburization, carbonitriding and quenching heat-treatment. The utility model comprises a furnace body, a furnace cover and a blower and is characterized in that: the supply pressure blast atomizing cracker is formed by connection and combination of the furnace cover, the blower, an inner pipe, an outer pipe, a support and a wire loop. The utility model has the advantages that: two concentric heat-resisting pipes with different diameters are adopted to be inserted into a furnace cavity, and nitrogen and methanol are sprayed into a furnace by high pressure and high flow rate and ejective methanol is atomized, vaporized and cracked, thereby generation of carbon black in the furnace is effectively reduced; even atmosphere is achieved; environmental sanitation for production is improved; particularly methanol consumption is reduced and production cost is lowered; no numerous investment is required, and no site for special equipment is occupied; no other heating power sources and cooling water for endothermic reaction are required.

Description

The bleed pressure jet atomization cracker of preparation nitrogen-methyl alcohol atmosphere

Technical field

The utility model relates to thermal treatment unit, particularly a kind of bleed pressure jet atomization cracker of preparation nitrogen-methyl alcohol atmosphere of carburizing, carbonitriding and the quenching heat treatment that is widely used in Equipment for Heating Processing such as meshbeltfurnace, mult-purpose chamber furnace, pit furnace and push-plate stove.

Background technology

In the heat treatment process, when cracker prepares controlled atmosphere in stove, in methyl alcohol vaporization cracking process, will can produce carbon black inevitably, make the accumulation that produces carbon black in the retort, and then form coking, thereby influence the heat treated part quality product, infringement stove inner member, even the normal operation of harm production, so the cleaning of blowing out regularly, in order to avoid influence production.

Summary of the invention

Technical problem to be solved in the utility model is: the bleed pressure jet atomization for preparing nitrogen-methyl alcohol atmosphere in a kind of Equipment for Heating Processing cracker is provided, adopt two heat-resistant tubes of different diameter to insert in the burner hearth, make the methyl alcohol jet atomization with nitrogen-methyl alcohol source of the gas with high pressure, the effusive nitrogen of high flow rate, spray in the stove, cracking produces with CO, H ₂And N ₂The installation method that replaces cracking (or by cracker in the stove) in domestic and international at present directly instillation methyl alcohol, the stove, and make the further refinement disperse of air-born substances of jet pipe ejection by the high speed centrifugation power of stirring blades end, reduce the generation of carbon black in the stove effectively, reach atmosphere homogeneous, improve the environmental health of producing, especially reduce the consumption of methyl alcohol, reduce production costs.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of bleed pressure jet atomization cracker for preparing nitrogen-methyl alcohol atmosphere, comprise body of heater, bell, blower fan, be characterized in, be connected with Steel Traveler by bell, blower fan, interior pipe, outer tube, support and combine.

Bell is connected with bolt with body of heater, and blower motor is loaded on bell top, and fan blade is submerged in the burner hearth.

In order to ensure interior tube hub line and outer concentric tube, inner and outer pipes is fixedly connected with support, source of the gas spray tube and bell insert in the burner hearth by bell with 70～75 ° of angles of level, and guarantee spout port near the top of stirring the fan blade outer end, insert the Steel Traveler that has been welded in the outer tube end in the stove.

One methyl alcohol bucket is connected with interior pipe top by the methyl alcohol under meter; One air compressor machine is connected by the short tube of nitrogen flow meter with outer tube top with Nitrogen plant by air flowmeter; One toluene bucket is connected with another short tube on outer tube top by the toluene flux meter.

The beneficial effects of the utility model are:

1, adopt two with one heart but the heat-resistant tube of different diameter insert in the burner hearth, with nitrogen, liquid methanol is sprayed in the stove with high pressure, high flow rate, make cracking behind the methyl alcohol atomization and vaporization of ejection, reduced the generation of carbon black in the stove effectively, reach atmosphere homogeneous, improve the environmental health of producing, particularly reduced the consumption of methyl alcohol, reduced production cost;

2, do not need great amount of investment, do not take the place of Special Equipment;

3, do not need the other heating power supply and the cooling water of thermo-negative reaction.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a bell vertical view of the present utility model.

Fig. 3 is the A-A sectional view of Fig. 1.

Fig. 4 is the B portion enlarged view of Fig. 1.

Label declaration in the accompanying drawing

1-bell 2-blower fan 3-outer tube

Pipe 5-support 6-Steel Traveler in the 4-

7-methyl alcohol bucket 8-methyl alcohol under meter 9-air compressor machine

10-air flowmeter 11-Nitrogen plant 12-nitrogen flow meter

13-toluene bucket 14-toluene flux meter

Embodiment

Below in conjunction with accompanying drawing structure of the present utility model is further described.

See also Fig. 1, shown in 2, the bleed pressure jet atomization cracker of preparation nitrogen of the present utility model-methyl alcohol atmosphere, be connected with Steel Traveler 6 by bell 1, blower fan 2, interior pipe 4, outer tube 3, support 5 and combine, wherein, bell 1 is connected with bolt seal with body of heater, and blower fan 2 motors and bell 1 top are installed and fused, blower fan 2 blades are submerged in the burner hearth, are used for nitrogen and the methanol mixed gas atmosphere that further stirs; The medullary ray of pipe 4 is concentric with outer tube 3 in one, shown in Fig. 3 A-A sectional view support 5, fixing inner and outer pipes, and pass through bell 1 with bell 1 with 70～75 ° of angles of level and insert in the burner hearth, and guarantee spout port near the top of stirring blower fan 2 blade outer ends, insert the Steel Traveler 6 that has been welded in outer tube 3 ends in the stove, shown in Fig. 4 B portion enlarged view, make the methyl alcohol and the nitrogen atmosphere that enter mix more even, more abundant; One methyl alcohol bucket 7 is connected with interior pipe 4 tops by methyl alcohol under meter 8; One air compressor machine 9 is connected by the short tube of nitrogen flow meter 12 with outer tube 3 tops with Nitrogen plant 11 by air flowmeter 10; One toluene bucket 13 is connected by toluene flux meter 14 another short tube with outer tube 3 tops.

Working process

With the nitrogen of certain purity 0.5MPa pressure, make from interior pipe 4 effusive liquid methanol atomizings with high flow velocity, further mixing the back from Nitrogen plant 11 and two kinds of raw materials of toluene bucket 13 outer tubes, 3 effusive atmosphere simultaneously enters in the stove by blower fan 2 atmosphere that stirs at Steel Traveler 6 spouts, the cracking of vaporizing in the pyritous stove forms with CO, H ₂And N ₂Thermal treatment control atmosphere for fundamental component.

Claims

1. a bleed pressure jet atomization cracker for preparing nitrogen-methyl alcohol atmosphere comprises body of heater, bell, blower fan, it is characterized in that:

Be connected with Steel Traveler (6) by bell (1), blower fan (2), interior pipe (4), outer tube (3), support (5) and combine.

2. the bleed pressure jet atomization cracker of preparation nitrogen according to claim 1-methyl alcohol atmosphere is characterized in that:

Bell (1) is connected with bolt with body of heater, and blower fan (2) motor is loaded on bell (1) top.

3. the bleed pressure jet atomization cracker of preparation nitrogen according to claim 1-methyl alcohol atmosphere is characterized in that:

Interior pipe (4) medullary ray is concentric with outer tube (3), and inner and outer pipes is fixedly connected with support (5), and inserts in the burner hearth by bell (1) with 70～75 ° of angles of level with bell (1), and a Steel Traveler (6) has been welded in outer tube (3) end in the insertion stove.

4. according to the bleed pressure jet atomization cracker of claim 1 or 3 described preparation nitrogen-methyl alcohol atmosphere, it is characterized in that:

One methyl alcohol bucket (7) is connected with interior pipe (4) top by methyl alcohol under meter (8); One air compressor machine (9) is connected by the short tube of nitrogen flow meter (12) with outer tube (3) top with Nitrogen plant (11) by air flowmeter (10); One toluene bucket (13) is connected by toluene flux meter (14) another short tube with outer tube (3) top.