CN2054896U

CN2054896U - Directly heating air type drier

Info

Publication number: CN2054896U
Application number: CN 89204751
Authority: CN
Inventors: 陈仲山; 周小琴; 饶乐; 贡建东; 曾琦
Original assignee: FUZHOU DISTRICT INDUSTRIAL TECHNOLOGY DEVELOPMENT CENTRE JIANGXI PROV
Current assignee: FUZHOU DISTRICT INDUSTRIAL TECHNOLOGY DEVELOPMENT CENTRE JIANGXI PROV
Priority date: 1989-04-18
Filing date: 1989-04-18
Publication date: 1990-03-21

Abstract

The utility model relates to a direct heating type drying stove using air flows, which belongs to a heating device for drying equipment, and is composed of three parts of a stove hearth, a jacket which is formed by the stove hearth and an outer casing, ventilation and deslagging, wherein, the outer wall of the stove hearth has a heat radiating fin; an air inlet pipe is positioned on a stove top part; a hot air outlet pipe is positioned on the lower part of the stove. The form of counter-current heat exchange is adopted to heat cold air which enters the jacket. Then, the cold air is directly fed into a drying chamber for carrying out the drying to materials. Products which are dried can not be polluted. The utility model is provided with a grate which adapts to the requirements of the combustion of various solid fuel. The utility model can be widely used for the drying of agricultural and sideline products, food, building materials, etc.

Description

Directly heating air type drier

The utility model relates to a kind of heating plant of drying equipment, belongs to adopt solid-fuelled air-flow direct-heating type drying oven.

Adopting solid in the existing drying equipment is the heating plant of the heat supply of fuel, and pot and stove baking formula among the people is arranged.Boiler steam supply formula, pipe internal combustion type several types.The outmoded backwardness of first type equipment, drying effect is bad; Second type, be the steam of boiler output as thermal source, import hothouse with pipeline, this device structure complexity, operating maintenance inconvenience, the vast villages and towns in rural areas of incompatibility uses; The third type is at burner hearth inner disc dress several tubes, fills the into calory burning of absorption of air burner hearth in the pipe, concentrates then and delivers to hothouse.Though this structure is simple than the boiler formula, because cargo tray for light cargo is contained in the burner hearth, influence the operation that feeds intake, pipe maintenance, replacing inconvenience, the form of heat exchange is effective not as good as counterflow exchange, and the steel consumption is many, the cost height.

The purpose of this utility model just provides a kind of simple in structure, and operating maintenance is convenient, and is cheap, adapts to multiple solid fuel, can improve rate of drying, and can not pollute the air-flow direct-heating type drying oven of the product that is dried.To satisfy the needs of the dry agricultural byproducts of vast villages and towns in rural areas, also can be used for the drying of food, building materials etc.

Main points of the present utility model are: drying oven is erect-type, and by the chuck that burner hearth, burner hearth and shell form, ventilate and deslagging etc. partly formed.Hearth outer wall is welded with fin, and air inlet pipe communicates with chuck at the top of stove, and heat outlet Guan Zailu bottom also communicates with chuck.The heat that fuel produces in the burner hearth internal combustion passes to the cold air that is entered into chuck by air inlet pipe by the fin of hearth outer wall, after cold air is heated, by the thermal current outlet, directly sends the hothouse dry products to.The heat that the peace burning produces passes to the cold air that is entered into chuck by air inlet pipe by the fin of hearth outer wall, after cold air is heated, by the thermal current outlet, directly send the hothouse dry products to, the grate that is installed on the ash discharging hole is movable, have the different size grate, can change according to the needs of different solid fuel ignitions.

The utlity model has following advantage:

1, molten burning, air draught calorify a structure, make full use of the condition of vertical garden body itself, make it compact conformation, simple, easy to manufacture, cheap.

2, because heat exchange is to utilize the fin of hearth outer wall and the cold air that enters chuck to carry out with the form of adverse current, and thermal current do not need to transmit heat by other metalwork again, and directly sends into the hothouse dry products, so it is better to add thermal effect.

3, owing to be empty body in the burner hearth, so combustion system air inlet, exhaust are unimpeded, it is easy to operate to feed intake, and is difficult for breaking down.

4, because fire door, the ash-draining gate of the design of this drying oven all stretch out the shaft outside, so body of heater can be installed in the hothouse, the fire door, the ash-draining gate that protrude all stretch out outside the partition wall of hothouse, drying oven both can be produced thermal current like this, can utilize the heat radiation of body of heater itself that hothouse is heated again, and guarantee that hothouse is not subjected to the pollution of waste gas, dust.

5, because grate is movable, and have the grate of different size, so can satisfy the needs that use multiple solid fuel ignition, it is strong to have adaptability, uses wide characteristics.

Description of drawings:

Fig. 1 is a schematic diagram of the present utility model

Fig. 2 is that the utility model is along the A-A generalized section

Base 1, grate 2, heat outlet pipe 3, burner hearth 4, shell 5, smoke pipe 6, air inlet pipe 7, fin 8, fire door 9, ash-draining gate 10, snorkel 11.

Describe structure of the present utility model in detail below in conjunction with accompanying drawing:

Burner hearth 4 is divided into two joints up and down, manufacture with steel plate, burner hearth 4 outer walls are welded with fin 8, and shell 5 usefulness thin plates roll and form, base 1 is cylinder iron manufactured, during assembling, earlier base 1 is connected with the following bolt of saving of burner hearth 4, again upper and lower two of burner hearth 4 is saved bolt and connected, then the flange of the flange on the shell 5 with burner hearth 4 is connected, connect smoke pipe 6 at last, on base 1 ash discharging hole, insert grate 2, promptly constituted the utility model.The utility model also needs to load onto air blast at air intake duct in use, puts combustion-supporting pressure fan at ash-draining gate.Its operating process is: 1, based on fuel is selected grate 2 for use, stove is given birth in igniting then; 3, after the fuel in the burner hearth 2 begins normal combustion 3～10 minutes, open the furnace roof air blast, to air inlet lower nip air, after entering cold air in the chuck and being heated, directly send the hothouse dry products to by heat outlet pipe 3 by fin 8; 4, cooling earlier during blowing out when gas flow temperature＜30 of heat outlet pipe 3 ℃, can be closed air blast, stops to supply gas.

Claims

1, a kind of drying oven that constitutes by burner hearth 4, shell 5, grate 2, fire door 9, ash-draining gate 10, smoke pipe 6, snorkel 11 etc., it is characterized in that burner hearth 4 forms chuck with shell 5, burner hearth 4 outer walls have fin 8, air inlet pipe 7 is positioned at furnace roof portion, and heat outlet pipe 3 is positioned at the stove bottom.

2, air-flow direct-heating type drying oven according to claim 1 is characterized in that, has the grate 2 of different size, and the grate 2 that is installed on the ash discharging hole is movable, can change according to solid-fuelled difference.