CN2320967Y

CN2320967Y - Hot-air steam drying apparatus

Info

Publication number: CN2320967Y
Application number: CN 98233717
Authority: CN
Inventors: 廖辉; 何清
Original assignee: XINGLONG MACHINERY FACTORY LUNJIAO TOWN SHUNDE CITY
Current assignee: XINGLONG MACHINERY FACTORY LUNJIAO TOWN SHUNDE CITY
Priority date: 1998-02-24
Filing date: 1998-02-24
Publication date: 1999-05-26
Anticipated expiration: 2008-02-24

Abstract

The utility model relates to a hot air steam drying apparatus, which is mainly suitable for the drying of wood or wooden pieces. The utility model comprises a drying stove and a drying chamber. The bottom of a steam box is provided with a plurality of steel pipes which are communicated with the steam box. The periphery of a discharge flue is provided with a clamp sleeve. The drying stove is in a horizontal structure. An atmospheric steam pipe is communicated with a hot air pipe and then enters the drying chamber. The heating area is increased by more than two times in an original range, which effectively improves the output of steam. Reflux damp heat air enters the air ducts in the drying stove through the clamp sleeve. Residual heat is fully used for heat exchange to increase the temperature of hot air. The utility model adopts a horizontal structure and has convenient and safe operation and maintenance.

Description

The hot blast vapor drying plant

The utility model relates to a kind of hot blast vapor drying plant, mainly is applicable to the drying of timber/part.

In the prior art, as No. 95237682.2, Chinese patent disclosed " multi-functional calandria hot-air drying stove ", it is made of hopper, fire door, grate, body of heater, chimney, airduct group, fire tube group, boiler, case cover etc., high-temperature furnace gas passes through in the airduct outside, fire tube inside, boiler the rear flank and discharges from chimney, air blasts from air blast, flow through the fire tube outside, airduct inside, the hot blast of formation concentrates row to drying shed from the case cover.It is in the easy scaling loss of airduct group in high temperature corrosion district, and maintenance is frequent, and maintenance cost is bigger, and vertical structure is complicated.

The purpose of this utility model aims to provide a kind of hot blast vapor drying plant that adopts indirect hot blast to combine with atmospheric steam, to overcome the deficiencies in the prior art part.

Hot blast vapor drying plant by this purpose design comprises: the drying oven that a. is made up of steam chest, steam triple valve, warm-air pipe and hot-blast valve, cold blast sliding valve, water intaking valve, water level meter, discharging valve, the chimney of shaft, centrifugal blower, burner hearth and top thereof; B. the hothouse of forming by ventilation chimney, deflector, axial flow blower, thermal insulating door thermally insulated door, reflux line; Its design feature is that the steam chest bottom is provided with some steel pipes of ganging up with steam chest, to increase heating surface (area) (HS; The smokejack periphery is provided with chuck; Drying oven is a horizontal type structure, and the atmospheric steam pipe is communicated with back input hothouse with warm-air pipe.

This dry device adopts indirect hot-air seasoning, in warm backflow drying process, be about to air heat to the needs temperature, supply with atmospheric steam by the high-efficiency steam case simultaneously, mix after centrifugal blower input hothouse, through airslide axial flow blower forced air convection heat transfer' heat-transfer by convection, timber/part is carried out drying handle again.Because some steel pipes have been set up in steam chest bottom, it is many to make heating surface (area) (HS increase twice in former scope, has improved steam production effectively, to satisfy drying of wood warm-up phase and mid-term the processing stage to the demand of quantity of steam.At smokejack outer periphery chuck, the damp-heat air of backflow enters air channel in the stove through this chuck, makes full use of the waste heat thermal energy exchange, improves hot blast temperature.Adopt horizontal type structure, integrated steel, steadily more durable than vertical, and operation and safeguard all convenient and safe.The airslide that is made of the deflector that is fixed on indoor both sides in the hothouse can quicken the heat conduction, makes the drying of wood even again.The package unit compact conformation, cost is low, and dry expense is few, and is economical and practical.

Accompanying drawing is the utility model one example structure schematic diagram.

Fig. 1 is a front view;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the A-A cutaway view among Fig. 2;

Fig. 4 is the B-B cutaway view among Fig. 1.

Referring to Fig. 1, Fig. 2, drying oven is a horizontal type structure.Shaft 18 front ends are provided with steam chest 7, water intaking valve 6, water level meter 8, discharging valve 9 and the steam triple valve 17 of burner hearth 10 and top thereof; Middle-end is provided with centrifugal blower 16 and jet chimney; The rear end is provided with cold blast sliding valve 15, hot-blast valve 14 and warm-air pipe 4, steam pipe with enter hothouse 19 after warm-air pipe is communicated with.Hothouse one side is provided with thermal insulating door thermally insulated door 13 and thermometer 12, and the top is provided with ventilation chimney 1, is provided with deflector 2 and some axial flow blowers 3 above the indoor material heap 20.5 is chimney among the figure, and 11 is standby draining valve, and 21 is smokejack, and 22 is chuck, and 24 is steam chest bottom steel pipe.Present embodiment is for burning the bavin type, and also can make with coal, electricity, wet goods is the type of furnace of thermal source.

Claims

1. hot blast vapor drying plant that mainly is applicable to timber/part drying comprises:

A. the drying oven of forming by steam chest (7), steam triple valve (17), warm-air pipe (4) and hot-blast valve (14), cold blast sliding valve (15), water intaking valve (6), water level meter (8), discharging valve (9), the chimney (5) of shaft (18), centrifugal blower (16), burner hearth (10) and top thereof;

B. the hothouse of forming by ventilation chimney (1), deflector (2), axial flow blower (3), thermal insulating door thermally insulated door (13), reflux line (23);

It is characterized in that steam chest (7) bottom is provided with some steel pipes of ganging up with steam chest (24), to increase heating surface (area) (HS; Smokejack (21) periphery is provided with chuck (22); Drying oven is a horizontal type structure, and the atmospheric steam pipe is communicated with back input hothouse (19) with warm-air pipe.

2. hot blast vapor drying plant as claimed in claim 1 is characterized in that steel pipe (24) laterally or vertically is provided with side by side.