CN2849624Y

CN2849624Y - Heater for granular materials

Info

Publication number: CN2849624Y
Application number: CN 200520104993
Authority: CN
Inventors: 孙学忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-08
Filing date: 2005-08-08
Publication date: 2006-12-20
Anticipated expiration: 2015-08-08

Abstract

The utility model relates to a heater for granular materials, which relates to the technical field of heating. The heater comprises a three-backhaul roller heating machine composed of an outer cylinder, a middle cylinder, an inner cylinder, an air suction mouth, a feed inlet, a driving device, a burning device, a discharging elephant trunk, etc., wherein a large mouth end of the inner cylinder 4 is connected with a roasting pot 11 which is a pot body, wherein both ends of which are in a frustum shape; a heat-insulating layer is coated outside the roasting pot; the inner wall of the roasting pot is provided with a material guiding plate. Or the large mouth end of the inner cylinder is connected with a horizontal type roasting roller 17; the heat-insulating layer is coated outside the roasting roller; the inner wall of the roasting roller is provided with the material guiding plate. Or the large mouth end of the inner cylinder is connected with a vertical type roasting tower 22; blanking slide carriages are arranged in the tower; the slide carriages are inverted and oblique each other; a burning furnace is arranged at tower bottom. Or the large mouth end of the inner cylinder is connected with a boiling bed 27; a horizontal boiling bed plate is arranged in a bed room; a plurality of nozzles are distributed on the horizontal boiling bed plate; the front end of a high-pressure wind room below the bed plate is provided with a flame spout and the burning device. The heater combines the three-backhaul roller heating machine suitable for low temperature heating and the roasting device suitable for high temperature heating, and makes heat exchange sufficient and heat efficiency high. The utility model can effectively avoid a device from deforming because of high temperature.

Description

The granular material heater

Technical field: the utility model belongs to the material technical field of heating, relates generally to the granular material firing equipment, particularly casting resin shell coated sand thermal reclamation equipment.

Background technology: sand, salt (sodium chloride), seat clay equigranular material, or they are as working media, or as the raw material of centre or final products, technological requirement often need be heated uniform temperature, particularly need be heated to 300-1000 ℃ of high temperature.Mostly be at present that their defective is that the flue-gas temperature of discharging is higher by heating such as equipment such as roasting kiln, ebullated bed, roasting cylinders, thermal waste is big; A kind of three-pass rotary drum heater is arranged, constitute by urceolus, middle tube, inner core group cover, volume is little, compact conformation, efficient height, can adopt the heating of following current or reflux type, its weak point is, cylinder Yin Gaowen is yielding, and will cause can not even running, it generally only is adapted to drying materials usefulness, or carries out the heating usefulness of two, 300 degree lower temperatures.

Summary of the invention: goal of the invention of the present utility model, be to overcome the deficiency and the defective of prior art, prior art is carried out the science combination, a kind of higher temperature heating that both had been suitable for is provided, can satisfy technological requirement, can make full use of the energy again, the granular material heater energy-conservation, that production efficiency is high.

For reaching the technical measures that above-mentioned purpose takes be: this granular material heater, comprise the three-pass rotary drum heater 1 that constitutes by urceolus 2, middle tube 3, inner core 4, suction opeing 6, charge door 7, transmission device 8 and burner, discharger slip awaing tube etc., also comprise coupled calciner.

The calciner of described connection is the big opening end connection roasting pot 11 in inner core 4, wraps up in heat-insulation layer 13 outside this tank shell 12, perhaps, interior deposited heat-insulation layer, a jar inwall is provided with stock guide 14, and a jar mouth is located install combustion device 15 and discharger slip awaing tube 16;

Perhaps, the calciner of described connection is the big opening end connection roasting cylinder 17 in inner core 4, wrap up in heat-insulation layer 19 outside this cylinder shell 18, perhaps, interior deposited heat-insulation layer, its inwall is provided with stock guide 20, and cylinder one end is provided with and supports rolling ring 21, cylinder port install combustion device 15 ' and discharger slip awaing tube 16 ';

Perhaps, the calciner of described connection is a roasting tower 22, is provided with blanking slide carriage 23 in the tower, and slide carriage is reversed dip each other, is combustion furnace 24 at the bottom of the tower;

Perhaps, the calciner of described connection is an ebullated bed 27, and indoor horizontal boiling bed board 35 is distributed with nozzle 37, and boiling-house 36 is provided with high low partition 38, and high pressure air compartment 30 front ends have flame jet 33, burner 31 and blast orifice 32.

The advantage of this device is, the three-pass rotary drum heater that will be suitable for the lower temperature heating combines with the calciner that is suitable for the higher temperature heating, preposition reinforced, rearmounted thermal source, make material and heated air stream reverse flow, move and the material of the continuous intensification that comes will reach the technological temperature requirement rapidly when touching flow process back segment thermal source place by the equipment leading portion, the thermal current process that constantly travels forward constantly preheats the lower temperature material again, so, headend equipment runs on low bringing-up section, rear end equipment runs on higher bringing-up section, has complementary advantages, and both can avoid causing the high temperature deformation of equipment, heat is fully used, energy-conservation, thermal efficiency height.

Description of drawings:

Accompanying drawing 1 the utility model three-pass rotary drum heater and the roasting pot organigram that is connected

Accompanying drawing 2 the utility model three-pass rotary drum heater and the roasting cylinder organigram that is connected

Accompanying drawing 3 the utility model three-pass rotary drum heater and the roasting tower organigram that is connected

Accompanying drawing 4 the utility model three-pass rotary drum heater and the ebullated bed organigram that is connected

The specific embodiment: as shown in Figure 1, be the utility model three-pass rotary drum heater and the roasting pot organigram that is connected, by urceolus 2, middle tube 3, the three-pass rotary drum heater that 4 groups of covers of inner core constitute, its front end is provided with suction opeing 6 and charge door 7, drive running by transmission device 8, material enters cylinder with certain flow by urceolus osculum end, rotation with cylinder, along the conical surface, small end from urceolus flows to big end earlier, with the lifting of stock guide, enters middle tube along breach, therefrom the small end of tube flows to big end again, enter inner core (shown in the arrow) again in the same way, the big opening end from inner core draws off at last, the drive of the stock guide of material in three tubes, be the shape that drenches with rain and fall with hot-air and carry out sufficient heat exchange, increased heat exchanger time through three backhauls.The present invention is the affixed roasting pot 11 of tube big opening end within the three-pass rotary drum heater, promptly constitute one of the utility model embodiment, this roasting pot stage casing is cylindric, two ends are frustum, concentric with the three-pass rotary drum heater, when required heating-up temperature during at 400-500 ℃, tank shell should be wrapped up in heat-insulation layer outward, when required heating-up temperature during at 500-1000 ℃, tank shell should interiorly apply heat-insulation layer, tank shell adopts heat-resisting steel sheet and plate to make, and a jar inwall is provided with polylith stock guide 14, jar mouthful place's install combustion device 15, discharger slip awaing tube 16 and fan housing 10.Material directly is discharged in the roasting pot by big mouthful of place of tube within the three-pass rotary drum heater, under stock guide drives in jar, swept on the one hand and be the shape that drenches with rain and fall with hot-air and carry out sufficient heat exchange, move backward gradually on the one hand, carry out heat exchange with reverse thermal current, because of tank body is wrapped up in outward or interior deposited heat insulating material layer, again near the flame place, so temperature is very high in jar, and temperature of charge is raise rapidly, material will be heated rapidly reach the technological temperature requirement, draw off by discharger slip awaing tube, the interior thermal current of jar continues to enter the three-pass rotary drum heater and adds thermal material, and waste gas is drawn out of by bleeding point 6 at last, and tube shell adopts heat-resisting steel sheet and plate to make.

As shown in Figure 2, the big opening end that is tube 4 within the three-pass rotary drum heater connects roasting cylinder 17, promptly constitute second kind of embodiment of the utility model, this roasting cylinder is a circular cylindrical cavity, single cylinder, concentric with the three-pass rotary drum heater, when required heating-up temperature during at 400-500 ℃, housing should be wrapped up in heat-insulation layer outward, when required heating-up temperature during at 500-1000 ℃, housing preferably should in apply heat-insulation layer, inner wall of rotary drum is provided with polylith stock guide 20, cylinder one end is provided with and supports rolling ring 21, cylinder port install combustion device 15 ', discharger slip awaing tube 16 ' and fan housing 10, drum housing adopts heat-resisting steel sheet and plate to make.

As shown in Figure 3, it is the big opening end of tube 4 within the three-pass rotary drum heater, connect roasting tower 22, constitute the third embodiment of the utility model, three-pass rotary drum heater discharger slip awaing tube (9) is the charge pipe of roasting tower, be provided with blanking slide carriage 23 in the tower, slide carriage is reversed dip each other, goes to the bottom and leaves the wind passage between slide carriage one end and tower wall, and the other end is unloaded and expected elephant trunk 41, it at the bottom of the tower combustion furnace 24, incendivity coke or fuel oil, tower body are built by laying bricks or stones by refractory brick and are constituted external application adiabator layer 25, the cat head exhaust outlet connects hot air duct 26, and the hot air duct other end passes fan housing 10 and inserts 4 big mouthfuls of places of inner core.By 4 big mouthfuls of materials that draw off of tube within the three-pass rotary drum heater, add in the tower and fall on the slide carriage 23, flow in the edge slide carriage of reversed dip each other, draw off by discharger slip awaing tube at last, between the upper end of the most beneath slide carriage and tower wall thermal current passway is arranged, the thermal current of base burning rises by (shown in the dotted arrow) through this passage, and with the reverse heat exchange of material, hot-air rises in hot air duct 26 joins the three-pass rotary drum heater in the tower.

As shown in Figure 4, it is the big opening end place of tube 4 within the three-pass rotary drum heater, connect roasting ebullated bed 27, constitute the 4th kind of embodiment of the utility model, ebullated bed housing 29 is built by laying bricks or stones by refractory brick and is formed, wrap up in heat-insulation layer 28 outward, there is level boiling bed board 35 at indoor middle part, be distributed with a plurality of nozzles 37, nozzle has the transverse jet pore, be provided with the high low partition 38 of polylith in the above boiling-house 36 of bed board, the punishment in advance breach is arranged at the low partition bottom, and three-pass rotary drum heater discharger slip awaing tube 9 is the boiling-house charging aperture, the boiling-house rear portion is provided with discharger slip awaing tube 40, following hot high pressure air compartment 30 front ends of bed board have flame jet 33, burner 31 and blast orifice 32, and flame jet orifice plate 34, also can with flame jet 33 ', burner 31 ' be located at more than the ebullated bed, one of boiling-house end, as shown in phantom in FIG., the boiling-house exhaust outlet connects hot air duct 39, and the hot air duct other end passes fan housing 10 and inserts in the inner core 4 big mouths.The high temperature and high pressure gas that air compartment 30 produces is by the fumarole ejection of bed board nozzle 37, make a last material boiling, boiling is jumped, is moved between high low partition 38, realizes heat exchange with thermal current, makes material constantly be warmed up to the technological requirement temperature, draw off by discharger slip awaing tube 40, indoor thermal current in hot air duct 39 joins the three-pass rotary drum heater, continues to finish heat exchange by exhaust outlet, the material of heating procedure leading portion, at last, waste gas is drawn out of by the front equipment end suction opeing.

Outer wrap up in or interior deposited heat-insulation and heat-preservation material is an inorganic heat-insulation and heat-preservation material such as alumina silicate or rock wool or mineral wool etc. all need be installed temperature element in the equipment in the scheme, according to temperature measuring parameter control burning and blast etc. described in the above embodiment.

Such scheme can be applicable to casting industry with fresh sand roasting or the regeneration of resin shell coated sand, and its temperature needs 400-1000 ℃ approximately; Can also be applied to other industry granular material is carried out heat treated.

Claims

1, a kind of granular material heater, comprise the three-pass rotary drum heater (1) that constitutes by urceolus (2), middle tube (3), inner core (4), suction opeing (6), charge door (7), transmission device (8) and burner, discharger slip awaing tube, it is characterized in that, also comprise the calciner that is connected with the big opening end of three-pass rotary drum heater inner core (4), described calciner is roasting pot (11), perhaps being roasting cylinder (17), for roasting tower (22), perhaps is ebullated bed (27) perhaps.

2, according to the described granular material heater of claim 1, it is characterized in that, described coupled calciner is the big opening end connection roasting pot (11) in three-pass rotary drum heater inner core (4), and its stage casing is cylindric, two ends are frustum, housing (12) is outer wraps up in heat-insulation layer (13), perhaps, and interior deposited heat-insulation layer, the jar inwall is provided with stock guide (14), and a jar mouth is located install combustion device (15), discharger slip awaing tube (16), reached fan housing (10).

3, according to the described granular material heater of claim 1, it is characterized in that, described coupled calciner is the big opening end connection roasting cylinder (17) in three-pass rotary drum heater inner core (4), and it is a circular cylindrical cavity, the outer heat-insulation layer (19) of wrapping up in of housing (18), perhaps, interior deposited heat-insulation layer, inner wall of rotary drum are provided with stock guide (20), cylinder one end is provided with and supports rolling ring (21), cylinder port install combustion device (15 '), discharger slip awaing tube (16 '), and fan housing (10).

4, according to the described granular material heater of claim 1, it is characterized in that, described coupled calciner is roasting tower (22), three-pass rotary drum heater discharger slip awaing tube (9) is the charge pipe of roasting tower, be provided with blanking slide carriage (23) in the tower, slide carriage is reversed dip each other, go to the bottom and leave thermal current passway between slide carriage one end and tower wall, the other end is unloaded and is expected elephant trunk (41), it at the bottom of the tower combustion furnace (24), the cat head exhaust outlet connects hot air duct (26), and its other end inserts big mouthful of place of three-pass rotary drum heater inner core (4).

5, according to the described granular material heater of claim 1, it is characterized in that, described coupled calciner is ebullated bed (27), it is a rectangular chamber, there is level boiling bed board (35) at indoor middle part, a plurality of nozzles (37) distribute, be provided with high low partition (38) in the above boiling-house of bed board (36), establish charging aperture before the boiling-house, connect the discharger slip awaing tube (9) of three-pass rotary drum heater, after discharger slip awaing tube (40) is arranged, the following high pressure air compartment of bed board (30) front end has flame jet (33), burner (31) and blast orifice (32) perhaps, are established flame jet (33 ') and burner (31 ') in boiling-house (36) one ends, the boiling-house exhaust outlet connects hot air duct (39), and its other end inserts big mouthful of place of three-pass rotary drum heater inner core (4).