CN2725812Y

CN2725812Y - Energy saving efficient drum type calcium carbonate powder drier

Info

Publication number: CN2725812Y
Application number: CN 200420083771
Authority: CN
Inventors: 甘光明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-08
Filing date: 2004-09-08
Publication date: 2005-09-14
Anticipated expiration: 2014-09-08

Abstract

The utility model relates to an energy saving efficient drum type calcium carbonate powder drier, comprising an outer housing, a fume pipe, a roll, a rolling motor, a cluster gear, a gearbox, a roller, a roller base, and a bracket The utility model is characterized in that the outer layer and the inner layer of the roll are welded with multiple spiral absorber plates. A steel rotary shaft is arranged in the roll and is driven by a regulating motor. An insulation layer is filled in the outer housing. A bed opening is connected with a tunnel type combustion chamber which is out connected with an oil-combustion combustion engine. The utility model adopts the oil-combustion combustion engine to provide heat energy, dries powder by using the roll as a heat exchanger, so that the energy saving effect is visible, the powder outlet quantity is greatly increased, the water content of the products is little, and the quality of the products is stable. The utility model is simple and reasonable in structure, small in volume, low in cost of investment and suitable for being widely used by enterprises which dry particles and powders.

Description

Efficient energy-saving drum-type Paris white dryer

One. technical field;

The utility model relates to a kind of liquid or moisture content removed and carries out dry plant equipment, particularly a kind of efficient energy-saving drum-type Paris white dryer from solid material.

Two. background technology;

Calcium carbonate powder is a kind of widely used raw material of industry, generally adopts lime stone to obtain quick lime after calcining, obtains white lime after being hydrolyzed, and forms through operation numbers such as slagging-off, drying, grinding, screenings again.Drying process generally adopts dryer to remove moisture content, and existing dryer is a large-scale cylinder long 15 meters, that diameter is 1.2 meters, white lime becomes bulk to put into cylinder behind drying dehydration, is blown into hot blast in the cylinder, and bulk white lime is heated in cylinder, and constantly roll, be broken into Powdered.The said equipment weak point; 1. hot blast derives from fire coal and air blast, and coal-fired ignition temperature is more than 1000 ℃, and combustion chamber oxidation, corrosion damage more seriously, and the maintenance interval is long, and idling period is also long.2. Ran Mei cost is per hour pressed one ton of about 50-80 of calculating of powder outlet quantity unit, and energy consumption is big, pollution is big, working strength of workers is also big.3. drum length is 15 meters, and floor space is big, the equipment investment amount is big, power consumption was also big when cylinder rotated.4. bulk white lime by the fragmentation of rolling, belongs to the passive type fragmentation in cylinder, and some bulk white lime that sinks to the cylinder inner bottom part is difficult for fragmentation, has had a strong impact on drying effect, causes powder outlet quantity low, and product is inhomogeneous, unstable, and the efficient of whole operation is also low.

Three. summary of the invention;

The purpose of this utility model is to overcome the said equipment weak point and a kind of efficient energy-saving drum-type Paris white dryer is provided.It is made up of feeding mouth, shell, cylinder, smoke exhaust pipe, discharging opening, gear train, gearbox, Rolling motor, roller, roller mount, support, it is characterized in that the cylinder skin is welded with absorber plate, and inner welded has heat sink and stiffening angle.Absorber plate radially becomes radial evenly distributed at the cylinder skin, and axially curl is arranged, and axial inclination is the 20-60 degree, and plate hight 4-6 centimetre, plate is apart from 4-6 centimetre.Heat sink radially also becomes radial evenly distributed at the cylinder internal layer, and axially curl is arranged, and axial inclination is the 60-80 degree, and plate hight 2-4 centimetre, plate is apart from 3-5 centimetre.The middle and lower part is equipped with a steel wire turning cylinder in the cylinder, and it runs through cylinder feeding mouth and discharging opening, by bearing block support, and is driven by buncher.Shell is filled with heat-insulation layer, and bottom opening is connected with formula combustion chamber, tunnel, and the combustion chamber is built by laying bricks or stones by refractory brick and formed, the equal in length that length and absorber plate distribute, the external Oil-combustion combusting machine in combustion chamber.

Four. description of drawings;

Fig. 1 is an efficient energy-saving drum-type Paris white drying machine structure schematic diagram;

Fig. 2 is an efficient energy-saving drum-type Paris white dryer left view;

Fig. 3 is an efficient energy-saving drum-type Paris white dryer A-A cutaway view.

Five. the specific embodiment;

Embodiment of the present utility model is described further below in conjunction with accompanying drawing; Fig. 1 is an efficient energy-saving drum-type Paris white drying machine structure schematic diagram; Fig. 2 is an efficient energy-saving drum-type Paris white dryer left view; Fig. 3 is an efficient energy-saving drum-type Paris white dryer A-A cutaway view.Efficient energy-saving drum-type Paris white dryer is characterised in that cylinder 5 is by be welded 1.2 meters of diameters of steel plate, the cylindrical container that length is 5 meters, two ends are respectively feeding mouth 2, discharging opening 9, whole cylinder is rolled with support 19 by four rolling 17, roller mount 16 and is connected, cylinder right-hand is fixed with a gear wheel, gear wheel is connected with a pinion, the size gear is formed gear train 11, pinion is connected with gearbox 12, Rolling motor 13, Rolling motor adopts buncher, and the rotating speed of index drum is 1-12 rev/min automatically.Cylinder is a drying chamber, heat exchanger especially, its skin is welded with absorber plate 6, and absorber plate radially becomes radial evenly distributed at the cylinder skin, axially curl is arranged, axial inclination is 45 degree, 4 centimetres of plate hights, and plate is apart from 4 centimetres, numerous absorber plates mainly is to enlarge endotherm area, hot blast rotates rising between absorber plate, also be in order to improve heat absorption efficiency, and the heat that absorber plate absorbed can be transmitted to the heat sink of cylinder internal layer fast.Heat sink radially also becomes radial evenly distributed at the cylinder internal layer, axially curl is arranged, axial inclination is 70 degree, 2.5 centimetres of plate hights, plate is apart from 3 centimetres, numerous heat sinks mainly is to enlarge area of dissipation, drive the upwards carrying of powder of sinking simultaneously, along with the rotation of cylinder, powder can constantly freely fall from eminence, and contained moisture content will constantly be evaporated by the high temperature in the cylinder, steam overflows through filter screen from feeding mouth and discharging opening, thereby reach the purpose of oven dry, the height of heat sink is less, the inclination angle mainly is to prevent powder adherence, and depositing can influence radiating effect when too many.Also being welded with stiffening angle 20 in the cylinder, mainly is the intensity of strengthening cylinder, cylinder distortion when preventing to weld numerous absorber plates and heat sink, and angle bar entad inclination angle is 45 degree, powder is difficult for adhering to.

The middle and lower part is equipped with a steel wire turning cylinder 15 in the cylinder, it runs through cylinder feeding mouth and discharging opening, by bearing block 10 supportings, and by buncher 1 drive, when the steel wire turning cylinder rotates, steel wire track diameter is 40 centimetres, can the white lime group that descend to sink to the cylinder bottom is initiatively broken, thus improve the thermal efficiency and flour extraction.

Shell 3 is 1.32 meters of diameters, and the cylinder that length is 4.5 meters is welded by steel plate, is filled with heat-insulation layer 7, and the material of heat-insulation layer can be selected swelling perlite powder or glass wool for use, and its purpose is to prevent that heat scatters and disappears, and improves the drying efficiency in the cylinder.Shell is welded into the holder formula with iron sheet and support 19 all around.The bottom opening of shell is connected with formula combustion chamber, tunnel 14, the combustion chamber is built by laying bricks or stones by refractory brick and is formed, the equal in length that length and absorber plate distribute, the external Oil-combustion combusting machine 18 in combustion chamber, the Oil-combustion combusting machine volume is light and handy, the firepower size can be controlled automatically, need not full-time administrative, about 800 ℃ of the temperature of fuel oil can not cause damage to the combustion chamber of tunnel formula, the drawback that can be exempted to stop production and keep in repair, the high-temperature hot-air that fuel oil produces flows between shell and cylinder, and most heats are absorbed by absorber plate, and waste gas is then discharged by smoke exhaust pipe 8, the cost of fuel oil is per hour pressed one ton of about 20-25 of calculating of powder outlet quantity unit, and energy consumption is little, pollute little, constant product quality.

The utility model adopts Oil-combustion combusting machine that heat energy is provided, and makes heat exchanger with cylinder powder is dried, and the temperature of oven dry is controlled automatically, and energy-saving effect is remarkable, and powder outlet quantity improves greatly, and the product water content is few, steady quality.The utility model is simple and reasonable, volume is little, cost of investment is low, and the enterprise of suitable particle, powder for drying processing is extensive use of.

Claims

1. efficient energy-saving drum-type Paris white dryer, it is by feeding mouth (2), shell (3), cylinder (5), smoke exhaust pipe (8), discharging opening (9), gear train (11), gearbox (12), Rolling motor (13), roller (17), roller mount (16), support (19) is formed, it is characterized in that the cylinder skin is welded with absorber plate (6), inner welded has heat sink (4) and stiffening angle (20), the middle and lower part is equipped with a steel wire turning cylinder (15) in the cylinder, it runs through cylinder feeding mouth and discharging opening, support by bearing block (10), and drive by buncher (1), shell is filled with heat-insulation layer (7), bottom opening is connected with formula combustion chamber, tunnel (14), the external Oil-combustion combusting machine in combustion chamber (18).

2. efficient energy-saving drum-type Paris white dryer according to claim 1, it is characterized in that described absorber plate (6) radially becomes radial evenly distributed at the cylinder skin, axially curl is arranged, and axial inclination is the 20-60 degree, plate hight 4-6 centimetre, plate is apart from 4-6 centimetre.

3. efficient energy-saving drum-type Paris white dryer according to claim 1 is characterized in that described heat sink (4), radially becomes radial evenly distributed at the cylinder internal layer, axially curl is arranged, axial inclination is the 60-80 degree, and plate hight 2-4 centimetre, plate is apart from 3-5 centimetre.