Preheater for cement production
Technical Field
The utility model belongs to the technical field of cement manufacture equipment, especially, be used for a preheater for cement manufacture.
Background
In novel dry cement clinker technology, the material can be added in the tuber pipe of preheater, utilize the waste heat to preheat the material, for this reason, be equipped with on the preheater tuber pipe and spill the material device, spill the material evenly in the tuber pipe, spill the material device and put directly downwards to one side, be equipped with material import and material export, the material import links to each other with the feed facility, the material export links to each other with the tuber pipe, waste heat gas flow in the tuber pipe is upward, utilize the clash of decurrent material and ascending hot gas flow to break up, heat the material, the better the homogeneity of spilling the material in the tuber pipe, the material is more abundant with the steam contact, steam is the better to material heating effect, energy-conserving effect is also the better. The prior cement preheater has uneven material scattering and poor preheating effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pre-heater for cement manufacture, simple structure, convenient operation can smash the bold cement material earlier to make the even feeding of cement material, carry out multistage preheating again, preheat effectually.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a preheater for cement production comprises a feeding box, wherein a plurality of compression rollers are rotationally connected in the feeding box, a plurality of feeding pipes are connected at the bottom of the feeding box, the ends of the feeding pipes, which are far away from the feeding box, are connected with a scattering box, a stirring rod is arranged in the scattering box, a feeding disc is arranged at the upper end of the stirring rod, stirring blades are arranged at the lateral part of the lower end of the stirring rod, a plurality of material through holes are arranged at the bottom of the feeding disc, the top end of the stirring rod extends out of the scattering box and is in transmission connection with a motor, a hot air blower is arranged at the lower end of one side of the scattering box, a discharge port is arranged in the middle part of the other side of the scattering box, the discharge port is connected with a spiral preheating box through a pipeline, a spiral cyclone partition plate is arranged on the inner wall of the spiral preheating box, a discharge, the material stirring rotating disc corresponds to the bottom of the material discharging pipe.
Preferably, the filter screen is clamped at the discharge port, and the bulk materials which are not broken up are separated in the breaking-up box and enter the spiral preheating box after being broken up by the stirring blades.
The utility model discloses still including enabling this preheater for cement manufacture other subassemblies of normal use, be the conventional technical means in this field. In addition, the device or the component which is not limited in the utility model adopts the conventional technical means in the field.
The utility model discloses during the use, place the cement material in the charging box, the cement material gets into the charging tray after the compression roller is refined to become the powder particle, starter motor and air heater, the motor drive puddler is rotatory, the puddler drives the charging tray and stirring vane is rotatory, the cement material breaks up the incasement through the even entering in the logical material hole of charging tray, stirring vane carries out abundant breaking up to the cement material, the air heater will be hot-blast to breaking up the incasement, hot-blast cement material that will break up completely is carried to the discharge gate, and the pipe is said and is carried to the spiral preheating cabinet in, with blockking of spiral whirlwind baffle, make the cement material slowly move down in the spiral preheating cabinet, by hot-blast heating pipe in the spiral preheating cabinet, at last from the discharging pipe get into in advance in the hot-blast pipe, preheat one end and advance hot-blastly, carry out the secondary to the cement material and preheat and finally get into.
The beneficial effects of the utility model are that, simple structure, convenient operation can smash the bold cement material earlier to make the even feeding of cement material, carry out multistage preheating again, preheat effectually.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.
Examples
As shown in figure 1, the preheater for cement production comprises a feeding box 1, wherein a plurality of compression rollers 2 are rotationally connected in the feeding box 1, a plurality of feeding pipes 3 are connected at the bottom of the feeding box 1, a scattering box 13 is connected at the end, far away from the feeding box 1, of each feeding pipe 3, a stirring rod 12 is arranged in each scattering box 13, a feeding disc 14 is arranged at the upper end of each stirring rod 12, stirring blades 11 are arranged at the side part of the lower end of each stirring rod, a plurality of material passing holes are formed in the bottom of each feeding disc 14, the top end of each stirring rod 12 extends out of each scattering box 13 and is connected with a motor 4 in a transmission manner, a hot air blower 10 is arranged at the lower end of one side of each scattering box 13, a discharge port is arranged in the middle of the other side of each discharge port, a spiral preheating box 5 is connected with a spiral cyclone partition plate 6 through a pipeline, a discharge pipe is arranged at the bottom of each spiral preheating box 5, and a preheating air pipe 9 is connected to the bottom of each discharge pipe, the preheating air pipe 9 is connected with a material shifting rotary table 7 in a rotating mode, a plurality of material shifting blades 8 are arranged on the side portion of the material shifting rotary table 7, and the material shifting rotary table 7 corresponds to the bottom of the discharge pipe.
A filter screen (not shown in the figure) is clamped at the discharge outlet of the scattering box 13, and the bulk materials which are not scattered are blocked in the scattering box 13 and are scattered by the stirring blades 11 to enter the spiral preheating box 5.
When the utility model is used, cement materials are placed in the charging box 1, the cement materials are finely crushed into powder particles by the compression roller 2 and then enter the charging tray 14, the motor 4 and the air heater 10 are started, the motor 4 drives the stirring rod 12 to rotate, the stirring rod 12 drives the charging tray 14 and the stirring blade 11 to rotate, the cement materials uniformly enter the scattering box 13 through the material passing hole of the charging tray 14, the stirring blade 11 fully scatters the cement materials, the air heater 10 conveys hot air into the scattering box 13, the completely scattered cement materials are conveyed to the discharge hole by the hot air, and is conveyed into the spiral preheating box 5 through a pipeline, the blocking of the spiral cyclone partition plate 6 causes the cement material to slowly move downwards in the spiral preheating box 5, heated by hot air in the spiral preheating box 5, finally enters the preheating air pipe from the discharge pipe, hot air enters one end of the preheating air pipe, cement materials are secondarily preheated, and finally enter the rotary cement kiln for calcination.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.