CN2463751Y

CN2463751Y - Hot-air drier

Info

Publication number: CN2463751Y
Application number: CN 01201529
Authority: CN
Inventors: 杨民; 曹学斌; 许博伟
Original assignee: BODA INDUSTRY AND TRADE Co Ltd YANSHI CITY
Current assignee: Luoyang Bailong drying equipment Co., Ltd.
Priority date: 2001-01-18
Filing date: 2001-01-18
Publication date: 2001-12-05
Anticipated expiration: 2011-01-18

Abstract

The utility model discloses a hot wind drier, which comprises a furnace chamber, a wind inlet, wind outlet and a smoke outlet. The drier is provided with multiple layers of annular wind channels with differing diameters; the bottom part of an inner layer wall 8 of an outer layer wind channel is communicated with the lower end of the second layer wind channel; the inner layer wall of the second layer wind channel is the inner wall of the furnace chamber; one circle of the upper end of the second layer wind channel is communicated with the bottom end of the third wind channel through a metal pipe; one circle of the upper end of the third annular wind channel is communicated with the upper end of the innermost layer wind channel; the bottom part of the inner layer wind channel is communicated with a wind outlet pipe. The utility model has the advantages of small size, simple structure, low cost and convenient operation.

Description

Hot-air drier

The utility model belongs to drying equipment, relates generally to a kind of hot-air drier to the material drying.

Mode to the material drying mainly contains infrared drying equipment (being electric heater unit), heating installation drying device (being the boiler heat supplying drying device), hot-air drying device (hot-blast stove heat supply) at present.Adopt infrared drying equipment owing to the electricity price height, enterprise's production cost is higher, and drying efficiency is low; Boiler and corollary equipment price height thereof that the heating installation drying device adopts, Coal-fired capacity is big, pollution is big; Though hot-blast stove drying efficiency height, equipment volume is big, costs an arm and a leg, and most of middle-size and small-size private, individual enterprises are reluctant to use.

It is little that the purpose of this utility model provides a kind of volume, simple in structure, the hot-air drier that cost is low and easy to use.

The purpose of this utility model adopts following technical scheme to realize: it comprises burner hearth, fire bars, cinder notch and have the air inlet of ring flange falls, air outlet and outlet flue, described drier has the different ring-like air channel of multilayer diameter, the outer wall layer in outer air channel is a dryer shell, air inlet is arranged on the top of outer air channel one side, the bottom and the second layer annular passage lower end of the inner layer wall in outer air channel communicate, the inner layer wall in second layer air channel is an inboard wall of burner hearth, a week communicates by the bottom in metal tube and shellring shape air channel on the second layer annular passage, the outer wall in the inner layer wall in outer annular air channel and shellring shape air channel forms flue pass-out mouth, one week of upper end in shellring shape air channel, the upper end by metal tube and innermost layer air channel communicated, the bottom in internal layer air channel is garden arc end socket and is positioned at directly over the burner hearth, the bottom and the discharge pipe in internal layer air channel communicate, and the outer wall in the outer wall in internal layer air channel and the 3rd layer of air channel forms flue pass-out mouth.

In the bottom in the outer annular air channel relative one side one safety mouth is set with air inlet, too high to avoid furnace pressure.

From the above mentioned, the utility model since the different annular passage of multilayer diameter by metal tube in an orderly manner UNICOM get up, form isolated mutually air and exhaust gases passes, make air can with the situation of smoke gas isolating under flow by the distance of design, air is heated after the preheating step by step by metallic walls when flowing.The stroke of hot blast is long because cool breeze becomes in drier, and big with the metallic walls contact area, exchange heat is abundant, makes that the outlet wind-warm syndrome is even and easy to control, uses how much control out wind-warm syndrome between 50 ℃-280 ℃ according to air quantity size and fuel; Because of the heat-blocking action of the Cryogenic air in outer annular air channel, (generally being no more than 30 ℃) reduced heat-energy losses to make the metal outer wall temperature of hot-air drier lower; Because the annular passage of drier is made by inside and outside double layer of metal material, its heat transfer speed is fast, the thermal energy conversion efficiency height, and temperature can raise fast; Drier adopts vertical structure, takes up an area of fewly, generally is no more than one square metre, and is in light weight, low cost of manufacture, and the hot blast cleaning is applicable to all kinds of coatings, compound, printing production line, and food, medicine, building materials, refractory material etc. need oven dry and air-dry enterprise.

In conjunction with the embodiments the utility model is further specified.

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

Fig. 2 is air of the present utility model and flue gas flow schematic diagram.

Shown in the figure: the utility model is that vertical structure comprises burner hearth, fire bars 15, cinder notch 11 falls, fuel port 10, the air inlet 1 that has ring flange, air outlet 8 and outlet flue 12, described drier has the different annular passage of multilayer diameter, annular passage is made by inside and outside double layer of metal material, ecto-entad is followed successively by outer air channel 2, second layer air channel 3, the 3rd layer of air channel 4, internal layer air channel 5, the outer wall in outer air channel 2 is the housing of drier, air inlet 1 is arranged on the top of outer air channel 2 one sides, the inner layer wall below in outer air channel 2 communicates with second layer annular passage 3 lower ends, and the inner layer wall in second layer air channel 3 is an inboard wall of burner hearth, and one week of inboard wall of burner hearth is provided with refractory lining 16.One week of second layer annular passage 3 upper ends, the bottom by metal tube 13 and shellring shape air channel 4 communicated, and formed flue 17 pass-out mouths 12 between the outer wall in the inner layer wall in outer annular air channel 2 and shellring shape air channel 4; Upper end one week in shellring shape air channel 4,5 upper ends, air channel by metal tube 14 and innermost layer were communicated with, and the bottom in internal layer air channel 5 is a circular arc end socket 6, its be positioned at burner hearth directly over, the bottom in internal layer air channel 5 with communicate for discharge pipe 7; Between the outer wall in the outer wall in internal layer air channel 5 and the 3rd layer of air channel 4, form flue 17 pass-out mouths 12.Discharge pipe 7 is communicated with air outlet 8, and bottom one side in the outer air channel 2 relative with air inlet 1 is provided with a safety mouthfuls 9.

When hot-air drier 2 work, cool breeze is flowed along flow arrow shown in Figure 2 18, cool breeze enters outer layer metal annular passage 2 by air inlet 1, bottom by its inner layer wall after its inwall preheating enters into 3 preheatings of second layer annular passage, metal tube 13 through its one week of upper end enters preheating in the shellring shape air channel 4 then, after through its upper end one week metal tube 14 enter preheating in the innermost layer annular passage 5, after end socket 6 heating of 5 bottoms, internal layer air channel, wind-warm syndrome is raised to the highest, deliver to air outlet 8 by discharge pipe 7, can enter the appointed area and carry out drying.As shown in Figure 2, when fuel burnt at burner hearth, the flue gas of production was discharged by chimney by flue 17 along flow arrow among the figure 19, and waste heat passes through the metallic walls of flue periphery with the air preheat in the air channel simultaneously.

Claims

1, a kind of hot-air drier, comprise burner hearth, fire bars (15), cinder notch (11) falls, the air inlet (1) that has ring flange, air outlet (8) and outlet flue (12), it is characterized in that: have the different annular passage that constitutes by inside and outside double layer of metal material of multilayer diameter, the outer wall in outer air channel (2) is a housing, air inlet (1) is arranged on the top of outer air channel (2) one sides, the inner layer wall below in outer air channel (2) communicates with second layer annular passage (3) lower end, the inner layer wall in second layer air channel (3) is an inboard wall of burner hearth, one all bottoms by metal tube (13) and shellring shape air channel (4) of second layer annular passage (3) upper end communicate, form flue (17) pass-out mouth (12) between the inner layer wall in outer annular air channel (2) and the outer wall in shellring shape air channel (4), one week of upper end in shellring shape air channel (4) is by the upper end connection in the air channel (5) of metal tube (14) and innermost layer, the bottom in internal layer air channel (5) is circular arc end socket (6), its be positioned at burner hearth directly over, the bottom in internal layer air channel (5) and discharge pipe (7) communicate, and form flue (17) by mouth (12) between the outer wall in the outer wall of internal layer air channel (5) and the 3rd layer of air channel (4).

2, hot-air drier according to claim 1 is characterized in that: bottom one side in the outer annular air channel (2) relative with air inlet (1) is provided with a safety mouthful (9).