CN2231787Y - Multifunctional calandria hot-air drier - Google Patents

Abstract

The utility model relates to a multifunctional calandria hot-wind drier is composed of a hopper (1), a furnace door (2), a grate (3), a chimney (4), a wind pipe set (5), a fire pipe set (6), a hot water tank (7), tank covers (8, 11, 13, 14), etc. The high temperature furnace gas passes through the outside of a wind pipe (12), the interior of a fire pipe (21) and the inside of the hot water tank, and is discharged from the chimney. The air is blown in the drier from a blower (9), and flows through the outside of the fire pipe and the interior of the wind pipe. Thus, the formed hot wind is discharged toward a drying chamber from the tank cover (14) in a concentrating way. Because the air flows in an S shape and the temperature of the air and the furnace gas can be raised in a convection way, the utility model has high thermal efficiency. Besides, the air and the furnace gas have respective passages, and can not be polluted. The utility model can also produce hot steam for selecting to use. The utility model is an ideal indirect hot-wind drying furnace.

Description

Multi-functional calandria hot-air drying stove

The utility model belongs to heat supply cooking stove technical field, is a kind of industrial stove and accessory of providing the indirect heated-air drying to use of being specially adapted to.

Along with the progress of industrial technology, the drying operation of agriculture and forestry product, food and some industrial chemicals presses for the stove and accessory that the indirect type hot blast can be provided.Chinese patent 92233580, X and 92233681.8 provides " simple and easy indirect hot-air drying device " and " multi-functional hot-air drying device " respectively, can both satisfy the specification requirement of various dry materials, but because its furnace wall or hot air duct are welding by dress, after long-term the use, special furnace wall of locating above burner hearth and pipeline scaling loss, seriously corroded are owing to can't change, make troubles to maintenance, even scrap in advance.

Deficiency at above-mentioned technology existence, a kind of pipeline dismounting and change of being heated in the perishable zone of high temperature in the burner hearth that makes of Development and design is convenient, and makes hot blast flow to S-shaped motion, prolongs the hot blast heating-up time, improving the stove and accessory of the thermal efficiency, is the utility model design objective.

Primary structure of the present utility model is by hopper, fire door, fire grate, body of heater, chimney and formed by warm-air pipe etc., special feature is the airduct group that is made of the horizontal airduct of many rows successively of body of heater, arranges the fire tube group that vertical fire tube constitutes more, and upper end annular boiler three parts are formed.The front-end and back-end of fire tube group all with in establish refractory material steel plate surround, the case cover and the air blast of a side join, the inlet box cover that the case cover of opposite side is associated with bend pipe and airduct group joins; The front-end and back-end of airduct group all with in establish refractory material steel plate surround, and be a unit with plurality of rows blast pipe and plurality of rows discharge pipe, the both sides of airduct group are established loop, an air-intaking box hood-shaped one-tenth air channel in turn at each place, unit, have at last concentrate to discharge hot blast go out the gas tank cover, wherein each airduct in the airduct group assembles with the plug-in mounting mode on gusset piece, and is detachable connection between airduct group, fire tube group, boiler and the case cover.

Technology contents also comprises: boiler joins can be to the sprinkler head of fire tube group fire tube spray.Airduct group or fire tube group profile can be square column type or cylindrical.

Technical characterstic of the present utility model has following good effect: during work, can add powder shape fuel (routine fine coal, sawdust, husk etc.) from hopper, or from fire door adding lump coal, after lighting on the fire grate, furnace gas is worn back rising from each airduct outside gap location of airduct group, during to the fire tube group, furnace gas passes through rising in each fire tube, at the boiler place, furnace gas continues to rise from the annular water tank middle part, direct reach chimney, row is to atmosphere; Simultaneously, outside air blasts from fire tube group one side case cover, and wear go back to each fire tube place from the intensification of being heated of fire tube outer wall, and then flow to airduct group inlet wind cover and plurality of rows blast pipe from the opposite side case cover and the bend pipe of fire tube group, through the air-intaking box cover then flow to the plurality of rows discharge pipe,, constantly heated up by the conduction of airduct heat in the repeatedly S shape motion that refluxes of airduct back warp, finally concentrate to discharge high-temperature hot-air, and then tap into drying shed and dry relevant material from going out the gas tank cover.By the furnace gas temperature in the dried burner hearth is the distribution of from bottom to top successively decreasing, through airduct external heat airduct, the inner heating fire-tube of fire tube, and outside air is circuitous from top to bottom flowing, earlier after fire tube, airduct heat conduction heating, the temperature gradient of air distributes rationally, heat utilization is more abundant, and the thermal efficiency is also high.Hot-air and furnace gas are taken their own roads in stove, mixed flow not mutually, and the indirect hot gas of generation is not polluted by furnace gas.Practice confirms to be in the easy scaling loss of airduct group pipeline in high temperature corrosion district, changes in case need repair, and only need be folded down the joint bolt (or pin) of case cover, just can extract the airduct that damages out from gusset piece and change, and safeguards to seem very convenient.Boiler can make full use of burner gas residual heat, and production hot water can spray hot water to fire tube from shower nozzle in case of necessity for drinking and live usefulness, and then the vapours of the vaporization generation indirect of being heated is used (the routine drying of wood) for special dry materials.The body of heater profile of different profiles can increase the stove and accessory kind, selects for the user.

Below in conjunction with accompanying drawing in detail embodiment is described in detail:

Fig. 1 is the utility model overall structure schematic diagram.

Fig. 2 is A-A cutaway view signal among Fig. 1.

Fig. 3 is B-B cutaway view signal among Fig. 1.

Mainly by hopper (1), fire door (2), fire grate (3), chimney (14), and arrange the airduct group (5) that horizontal airduct (12) constitutes from the visible the utility model of Fig. 1 more, arrange the fire tube group (6) that vertical fire tube (21) constitutes, boiler compositions such as (7) more.Have case cover (8) and air blast (9) to join in fire tube group one side, the inlet box cover (11) that the case cover of opposite side is associated with bend pipe (10) and airduct group joins.Per two exhaust ducts (12) are formed blast pipe or discharge pipe in the diagram, and each outlet and inlet pipe unit place is provided with air-intaking box cover (13) in turn, and last discharge pipe place is provided with out gas tank cover (14).Annular heat water tank (7) is located at the upper end, two boilers that are provided with among the figure are connected mutually, simple type can be open type boiler, corresponding water inlet pipe (15), the outlet pipe (16) of being provided with, and thermometer (17) etc., also can be associated with can be to the shower nozzle (18) of fire tube group (6) spray hot water.Each airduct (12) is gone up at gusset piece (22) and is adopted the plug-in mounting mode, and the slit can asbestos fire clay jam-pack.

The steel plate that the cross section structure of representing 3 fire tube groups (6) and airduct group (5) among Fig. 2, Fig. 3 respectively, the front and back end of fire tube group (19) are established refractory material (just fire clay stratum reticulare) in being surrounds, and the steel plate that the front and back end of airduct group (20) establish refractory brick in being surrounds.

Claims (3)

1, the calandria hot-air drying stove is mainly by hopper (1), fire door (2), fire grate (3), body of heater, chimney (4) and constituted by warm-air pipe, it is characterized in that the airduct group (5) that body of heater is made up of the horizontal airduct of many rows (12) successively, the fire tube group (6) that many vertical fire tubes of row (21) are formed and the boiler (7) of upper end constitute, before the fire tube group (6), rear end (19) all with in establish refractory material steel plate surround, one side has case cover (8) and air blast (9) to join, the inlet box cover (11) that the case cover of opposite side is associated with bend pipe (10) and airduct group (5) joins, before the airduct group (5), rear end (20) all with in establish refractory material steel plate surround, and be a unit with plurality of rows blast pipe and plurality of rows discharge pipe, airduct group (5) both sides are established an air-intaking box cover (13) in turn at each place, unit, there is concentrated hot blast to go out gas tank cover (14) at last, wherein each airduct (12) in the airduct group (5) is inserted on the gusset piece (22), and each case cover (8,11,13,14) with body for detachably to connect.

2, calandria hot-air drying stove according to claim 1 is characterized in that boiler (7) is associated with the shower nozzle (18) that can spray hot water to fire tube group (6) fire tube (21).

3, calandria hot-air drying stove according to claim 1 and 2 is characterized in that the profile of airduct group (5) or fire tube group (6) is a square column type or cylindrical.