CN2620232Y

CN2620232Y - Hot air type drier

Info

Publication number: CN2620232Y
Application number: CN 03217348
Authority: CN
Inventors: 禹光龙
Original assignee: QINGDAO DAJING DRY CLEANING EQUIPMENT CO Ltd
Current assignee: QINGDAO DAJING DRY CLEANING EQUIPMENT CO Ltd
Priority date: 2003-05-22
Filing date: 2003-05-22
Publication date: 2004-06-09
Anticipated expiration: 2013-05-22

Abstract

The utility model discloses a hot air type drying machine, a hot air room is arranged in the interior of an air room, a burner is arranged at the lower part of the air room, the outlet of the burner is connected with the inlet of burning room in the hot air room, one end of the hot air tube in the hot air room is connected with the outlet of the burning room, the other end of the hot air tube passes through the hot air room and the upper part of the air room and is communicated with the atmosphere; an air inlet which is communicated with the hot air room is arranged at the side wall of the upper part of the air room, a hot air channel which is led to a drying roller is arranged at the top of the hot air room. As the said burner is the existing fire-spraying type, hot air speed is rapid, power-on or power-off can be made at any time, air speed can be adjusted, the drying machine can be large or small, the operation is convenient, the structure is simple, the price is low; the external cold air is heated and directly enters the drying roller to dry the object without heat exchange, solving the problem such as long production process of boiler, inadequate heat-energy utilization, pressure pipeline layout, lowest drying temperature, non-safety, large investment of matched equipments, high steam-generating cost and etc.

Description

The hot air type dryer

Technical field

The utility model belongs to drying plant, specifically a kind of dryer that is used to dry as clothing, food, construction material etc.

Background technology

Existing dryer, mostly add hot water with coal-burning boiler or electric boiler, with the radiator in the superheated steam feeding baking oven that is produced, realize the wherein drying of article, the shortcoming of this drying mode is, no matter be coal-fired or electric boiler, all needs earlier water to be heated and can work after steaming, production process is long; The superheated steam that boiler produces needs to dry indirectly through heat exchange, heat energy can not be fully utilized, from the boiler to the dryer, to lay pressure-resistant pipeline and take insulation measure, above-mentioned various reasons to make that the temperature of dryer is the highest can only to be reached about 120 degree, if need hyperthermia drying then can't realize.Coal-fired steam boiler is generally all bigger, can only be used on the large-scale dryer, if be used on the less dryer, because of steam can't storage can cause waste, and the steam pressure height that produces, boiler attendance requires high, inadequately safety, above-mentioned boiler auxiliary facility is many, has high input the price height; And the electric boiler power consumption is big, and the cost height that steams also exists the high unsafe problem of Electrical Safety and steam pressure simultaneously.

The utility model content

For solving dryer is to produce superheated steam with coal-burning boiler or electric boiler to dry existing many shortcomings, the technical solution of the utility model is: the big bell-jar hot blast chamber of end opening is installed in the inside of air compartment, bottom in the hot blast chamber, burner is installed, the import of the combustion chamber that the outlet of burner and hot blast are indoor is connected, and the indoor top that warm-air pipe one end is connected with the outlet of combustion chamber, the other end passes hot blast chamber and air compartment of hot blast communicates with atmosphere through the gas outlet; Close side-walls on air compartment top has the air inlet that is connected with the hot blast chamber, and the hot-flow flue that leads to drying roller is arranged at the top of hot blast chamber.

In order to make the hot blast that comes out from burner enter the indoor warm-air pipe of hot blast as early as possible, between the outlet and warm-air pipe of burner, also can be provided with the ventilating duct of sectional area greater than warm-air pipe.

The indoor warm-air pipe of described hot blast can be reciprocating disk around continuous pipe, also can be many of transversely arranged, both ends open, in order to make longer more heats that absorb of cold air time of staying in the hot blast chamber, horizontal dividing plate in that the indoor end that also can be provided with many warm-air pipes of hot blast separates has air flue between warm-air pipe two ends and hot blast chamber.

Because what described burner was selected for use is existing flame formula, it is fast to produce hot blast speed, can start at any time or close, and without any danger, wind speed adjustable size during operation, so dryer is changeable, easy to operate; Said burner is simple in structure, and price is low, and its fuel can be fuel oil, coal and other combustible wastes etc., and resource is extensive; Fuel is in the burner internal combustion, and flame enters the indoor warm-air pipe of hot blast through the combustion chamber, and its waste gas is discharged from the blast pipe on top; The cold air of coming in from the outside is through the warm-air pipe outside, cold wind is heated, the hot-flow flue that leads to drying roller again through top, hot blast chamber enters drying roller, article are wherein directly dried, not heat exchange, it is long to have solved the production process of can working after above-mentioned boiler steams, heat exchange is dried heat energy indirectly and can not be made full use of, lay pressure-resistant pipeline, bake out temperature is minimum, coal-fired steam boiler is generally all bigger, be used for small-sized oven dry waste energy, dangerous, boiler and auxiliary facility have high input, price is high and the electric boiler power consumption is big, and the cost height steams, uneasy congruent problem.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a front view of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic;

Fig. 3 is that the B-B of Fig. 2 is to cross-sectional schematic;

Fig. 4 is that the B-B of another kind of embodiment of Fig. 1 is to cross-sectional schematic.

Fig. 5 is for being fundamental diagram of the present utility model.

The specific embodiment

Among Fig. 1, Fig. 2, the bell-jar hot blast chamber 5 that is equipped with in the inside of air compartment 3 that end opening is big, top has hot-flow flue 2, is connected with drying roller 1 by hot-flow flue 2, in air compartment 3, the bottom of hot blast chamber 5, burner 4 is installed, and the import of the combustion chamber 7 in the outlet of burner 4 and the hot blast chamber 5 is connected; In order to make the hot blast that comes out from burner 4 enter warm-air pipe 10 in the hot blast chamber 5 as early as possible, between the outlet and warm-air pipe 10 of burner 4, also can be provided with the ventilating duct 8 of sectional area greater than warm-air pipe 10, the cross section of described combustion chamber 7, ventilating duct 8 and warm-air pipe 10 can be circular, can be square, can also be the pipe that ellipse waits other shapes; Warm-air pipe 10 1 ends in the hot blast chamber 5 are connected with the outlet of combustion chamber 7, and the top that the other end passes hot blast chamber 5 and air compartment 3 11 communicates with atmosphere through the gas outlet; Close side-walls on air compartment 3 tops has the air inlet 13 (referring to Fig. 3,4) that is connected with hot blast chamber 5.

In order to make hot blast time of staying in hot blast chamber 5 long, give the cold wind more heat of coming in from the outside, in hot blast chamber 5, also can be provided with dividing plate 12 horizontal, that can make the hot blast baffling in the many warm-air pipes 10.

Warm-air pipes 10 in the described hot blast chamber 5 can be reciprocating disk around continuous pipe, also can be many of transversely arranged, both ends open, 5 of warm-air pipe 10 two ends and hot blast chambers are provided with the air flue 6 that can advance cold wind from the outside, between the middle part of transversely arranged many warm-air pipes 10 1 ends and the sidewall of hot blast chamber 5, be provided with the dividing plate 12 that many warm-air pipes 10 is divided at least two groups.

In order to prevent scattering and disappearing of heat, can be provided with heat-insulation layer 14 in the outside of air compartment 3.

Among Fig. 5, the hot blast that 5 internal combustion are come out in the combustion chamber of the fuel from burner 4 through dividing plate 12 bafflings, enters ventilating duct 8, warm-air pipe 10, and the sidewall of running into hot blast chamber 5 is catadioptric, and the warm-air pipe 10 through top enters escape pipe 11 again; And the heated cold wind that advances from air inlet 13 is heated through the outside of warm-air pipe 10, enters in the drying roller 1 through hot-flow flue 2 and directly article is wherein dried.

Claims

1, a kind of hot air type dryer, comprise drying roller (1), air compartment (3), it is characterized in that: the big bell-jar hot blast chamber (5) of end opening is installed in the inside of air compartment (3), bottom in hot blast chamber (5), burner (4) is installed, the import of the combustion chamber (7) in the outlet of burner (4) and hot blast chamber (5) is connected, and hot blast chamber (5) interior warm-air pipe (10) one ends are connected with the outlet of combustion chamber (7), the other end passes hot blast chamber (5) and (11) communicate with atmosphere through the gas outlet on the top of air compartment (3); Close side-walls on air compartment (3) top has the air inlet (13) that is connected with hot blast chamber (5), and the hot-flow flue (2) that leads to drying roller (1) is arranged at the top of hot blast chamber (5).

2, hot air type dryer as claimed in claim 1 is characterized in that: between the outlet and warm-air pipe (10) of burner (4), also can be provided with the ventilating duct (8) of sectional area greater than warm-air pipe (10).

3, hot air type dryer as claimed in claim 1 or 2 is characterized in that: the warm-air pipe (10) in hot blast chamber (5) is many of transversely arranged, both ends open.

4, hot air type dryer as claimed in claim 3 is characterized in that: be provided with the horizontal dividing plate (12) that the end with many warm-air pipes (10) separates up and down in hot blast chamber (5).

5, hot air type dryer as claimed in claim 1 or 2 is characterized in that: the warm-air pipe (10) in hot blast chamber (5) be reciprocating disk around continuous pipe.