CN2372642Y - Rotary furnace for aluminium fluoride external heating dewatering drying by wet method - Google Patents

Abstract

The utility model provides an external heating type rotary furnace capable of dewatering and drying with a wet method for aluminium fluoride. The external heating type rotary furnace is mainly composed of a cylindrical body, an external heater, a supporter and a transmission mechanism, and is characterized in that the inner part of the cylindrical body is divided into three sections (A, B, C), wherein, the section A is an adhesive water baking zone, the section B is a crystal water drying zone, the section C is a desuperheating zone, the sections (A, B) are separated by a patterned plate retaining ring, the sections (B, C) are separated by an annular retaining ring, a helical roller leaf is arranged in the section A, and upender plates which are helically distributed are arranged on an inner wall of the section B. The utility model adopts a one-step method and the mode of external heating to dewater and bake the aluminium fluoride, can greatly reduce production cost and improve the quality of products, and has the advantages of simple manufacturing process, less investment and obvious effect.

Description

Wet method aluminum fluoride external-heat dehydrates rotary furnace

The utility model belongs to the thermal dehydration drying device, and specifically wet method aluminum fluoride external-heat dehydrates rotary furnace.

Now, the wet production aluminum fluoride still adopts traditional internal heat type to dehydrate stove basically and dehydrates, and this mode is to make fuel with water-gas, and carries out the segmentation dehydration.Water-gas is produced by coal and steam reaction, need build the water-gas station water-gas is provided, investment is big, complex process, technology is difficult grasps, simultaneously, internal heat type is again a mode of taking the segmentation dehydration, corresponding apparatus and number of tubes are various, and maintaining quite bothers, in addition, use water-gas to make fuel, if misoperation, easy explosion caused accident, poor stability.Adopt the dewatering aluminium fluoride drying oven of outer heating to have not yet to see.

The purpose of this utility model provides a kind of wet method aluminum fluoride external-heat and dehydrates rotary furnace, and its adopts one-step method external heating mode that dewatering aluminium fluoride is dried, and reduces production costs significantly and put forward product quality.

In order to achieve the above object, the technical measures that the utility model is taked are: this wet method aluminum fluoride external-heat dehydrates rotary furnace and comprises outer heater, supporter and motor and transmission mechanism, it is characterized in that: it also has a rotary furnace cylindrical shell, the cylindrical shell two ends are by support body supports, a left side is high right low horizontally to be the suitable gradient and to tilt to install, and left end dress transmission mechanism connects motor, mid portion by heater around, the left side is a charging aperture, and the right side is a discharging opening; Be divided into A in the cylindrical shell from left to right, B, three sections of C, the A section is the attached water baking zone, the B section is a crystallization water drying zone, the C section is that the district is adjusted in the cooling cooling, be separated by by the card back-up ring that has several rows of cellular through hole between AB, be separated by by the annular back-up ring between BC, place one in the A section and do not have annexation with cylindrical shell, diameter＜＜barrel diameter, can follow the helical form roller leaf that cylindrical shell rolls, be 90 ° of angles between two blades, by spiral distribution, on the inwall of B section, vertical arrangement is housed, the material rotating plate of Fen Buing twist, the oblique line distance between plate and the plate is between 200mm～1200mm.

The utility model has the advantages that: 1, technology is uncomplicated, small investment, instant effect, and equipment, personnel, material consumption all can reduce; 2, product quality improves, and contains crystallization water rate＜4%, and production cost descends 25%, and economic benefit is fairly obvious; 3, simple in structure, technology is uncomplicated, easily grasps of operation, easy temperature control system, Maintenance and Repair make things convenient for.

Fig. 1 is the unitary construction schematic diagram that wet method aluminum fluoride external-heat dehydrates rotary furnace.

Fig. 2 is the longitudinal sectional view of rotary furnace cylindrical shell 3 among Fig. 1.

Fig. 3 is the axial location diagrammatic sketch of supporter support roller seat 9, passive support roller 10 and rolling ring 5 among Fig. 1.

Fig. 4 is the shaft side figure of the conveyor screw roller leaf 20 of attached water baking zone among Fig. 2.

Fig. 5 is the viewgraph of cross-section of card ring washer 21 among Fig. 2.

Fig. 6 is the plane of structure cutaway view of Fig. 2 guide ring 23 and 23 '.

Fig. 7 is the cross section view of material rotating plate 22 among Fig. 2.

Fig. 8 is the distributing position figure of material rotating plate 22 on cylinder inboard wall of Fig. 7.

Below in conjunction with accompanying drawing the utility model is done to describe in further detail.

Fig. 1 is the unitary construction schematic diagram that wet method aluminum fluoride external-heat dehydrates rotary furnace.Mainly form by outer heater, rotary furnace cylindrical shell, bracing or strutting arrangement, motor and transmission mechanism.Whole rotary furnace is horizontal, and the high right low slightly inclined in a left side is installed, and is the suitable gradient.Among the figure, the 17th, can the whole Industrial Stoves that move, promptly outer heater is provided with six fire doors, and fuel is from fire door 8 addings, the 6th, heat-insulation layer; The 3rd, the cylindrical shell of rotary furnace, the position of heating places burner hearth, and the cylindrical shell left side 2 is feed pipes, the arrow indication is a charging aperture, the 1st, and the threeway wireway is used to discharge the steam in the cylindrical shell, cylindrical shell the right 7 directions of arrow are discharging opening, and whole cylindrical shell is supported by the bracing or strutting arrangement at two ends; Supporter 9 is support roller seats, the 10th, and passive support roller, two ends, the left and right sides respectively have a pair of, and they hold two rolling rings 5 on the cylindrical shell jointly, barrel support can be lived, and can not hinder cylindrical shell to rotate again, see Fig. 3; The 16th, motor, the 15th, driving-belt, the 14th, reduction box, the 13rd, clutch, the 12nd, bearing block, the 11st, pinion, the 4th, gear wheel, they constitute power drive mechanism together, provide power to cylindrical shell, rotate to drive cylindrical shell.

Fig. 2 is the longitudinal sectional view of rotary furnace cylindrical shell 3 among Fig. 1.Among the figure, the 3rd, cylindrical shell, the 18th, the backing plate of rolling ring, it be welded on the cylindrical shell, for circular, rolling ring just is contained on the backing plate, the 19th, strengthen gusset, be used to increase the mechanical strength and the anti-non-deformability of carrying of cylindrical shell, the effect of protection cylindrical shell is also arranged simultaneously.Helical form roller leaf 20 is installed from left to right, card retaining 21, material rotating plate 22, back-up ring 23 and ring washer 23 ' in the cylindrical shell.Be divided into three sections zones in the whole cylindrical shell: first section A is the attached water baking zone from the left part to card back-up ring 21, only place one in the zone and do not have annexation with cylindrical shell, diameter＜＜barrel diameter, can follow the helical form roller leaf 20 that cylindrical shell rolls, see Fig. 4, it is on a cylinder metal rod periphery blade 24 to be installed, be 90 ° of angles between two blades, by spiral distribution, be used for the aluminum fluoride of ointment sample is stirred, break up, in case crust, card back-up ring 21 surfaces have many honeycomb sample through holes 25 and see Fig. 5, its effect is to keep out helical form roller leaf to be unlikely to toward advancing slip, and the aluminum fluoride that allows quilt through preliminary oven dry take off attached water simultaneously passes through from the hole smoothly; Second section B and B ' 23 ' are the exsiccation district from card back-up ring 21 to back-up ring, insert back-up ring 23 therebetween, the exsiccation differentiation is divided into B and two minizones of B ', the purpose that two back-up rings are set is to make processed aluminum fluoride continue a period of time in interval, equably, dehydrate fully, the geometry of back-up ring is seen Fig. 6, it is the not high hurdle bank 23 of a circle of burn-oning on the inwall of cylindrical shell, play inhibition, be welded with material rotating plate 22 on the interval inner barrel inwall, (see Fig. 7 and Fig. 8, Fig. 7 is a cross section view, Fig. 8 is the distributing position figure on cylinder inboard wall), material rotating plate distributes on cylinder inboard wall twist, and the oblique line distance between two plates is between 200mm～1200mm, material rotating plate plays tipping effect to processed aluminum fluoride, make it to heat evenly, aqueous vapor is easy to evaporation, and two sub-districts are different except length distance, its structure is identical, so the interval material rotating plate of B ' has just omitted, and does not draw; The 3rd section C adjusts the district, and adjusting in the district is light tube tube, does not have any parts, and the right side is a discharging opening 7.Processed aluminum fluoride is sloughed attached water and second operation work through first procedure oven dry dries to enter after sloughing the crystallization water again and adjusts the district and stirring cooling cooling back and spill from discharging opening and get product.In the process of whole drying and dewatering, the steam that forms in the furnace high-temperature lower shell will be derived from the threeway wireway of cylindrical shell left end, see Fig. 1.

The course of work of whole device is: add the fuel ignition burning to 3 heating of rotary furnace cylindrical shell to fire door 8, actuating motor drives cylindrical shell by transmission mechanism and presses the setting speed revolution, when the burner hearth temperature rise is extremely temperature required, the aluminum fluoride ointment that will have the attached water and the crystallization water from charging aperture 2 directions of arrow constantly drops into, aluminum fluoride ointment moves forward by the speed of the setting spiral that constantly rolls in cylindrical shell, tentatively heated during through attached water baking zone A, constantly stir by the helical form roller leaf 20 that is rolling, break up, slough attached water, aluminum fluoride through sloughing attached water becomes graininess to pass through the through hole of card back-up ring 21, send into crystallization water drying zone B → B ', further oven dry, the material rotating plate 22 that is distributed by spirality constantly stirs, after sloughing the crystallization water, send into adjustment district C cooling cooling by back-up ring 23 ', slowly spill crystalline particle shape finished product from discharging opening 7 at last, can obtain qualified products behind the collecting packing.

Claims (1)

1, a kind of wet method aluminum fluoride external-heat dehydrates rotary furnace, it comprises outer heater, supporter and motor and transmission mechanism, it is characterized in that: it also comprises a rotary furnace cylindrical shell, the cylindrical shell two ends are by support body supports, a left side is high right low horizontally to be the suitable gradient and to tilt to install, and left end dress transmission mechanism connects motor, mid portion by heater around, the left side is a charging aperture, and the right side is a discharging opening; Be divided into A in the cylindrical shell from left to right, B, three sections of C, the A section is the attached water baking zone, the B section is the exsiccation district, the C section is that the district is adjusted in the cooling cooling, be separated by by the card back-up ring that has several rows of cellular through hole between AB, be separated by by the annular back-up ring between BC, place one in the A section and do not have annexation with cylindrical shell, diameter＜＜barrel diameter, can follow the helical form roller leaf that cylindrical shell rolls, be 90 ° of angles between two blades, by spiral distribution, on the inwall of B section, vertical arrangement is housed, the material rotating plate of Fen Buing twist, the oblique line distance between plate and the plate is between 200mm～1200mm.

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