Hot air screening device
Technical Field
The utility model relates to the technical field of screening machines, in particular to a hot air screening device.
Background
The working part of the cylindrical screen is cylindrical, and the whole screen rotates around the axis of the cylinder, and the axis is normally provided with a small inclination angle. The material is fed from one end of the drum, fine material passes through the mesh of the drum work surface, and coarse material is discharged from the other end of the drum.
The common fault of the cylindrical screen in the current market is that when the cylindrical screen is used for screening materials, screen holes are easily blocked, and particularly in some regions with humid climate, the materials are more easily bonded into blocks in the screening process after being wetted, so that the screen openings of the cylindrical screen are blocked, and the screening efficiency is reduced.
Based on the above, the utility model designs the hot air screening device to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hot air screening device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a hot air screening device comprises a machine body, wherein a screening assembly is arranged inside the machine body, an inlet pipe is arranged on the left side of the screening assembly, the left end of the inlet pipe penetrates through the outside of the machine body, the inlet pipe is rotatably connected with the machine body, a motor is fixedly arranged on the left side of the machine body, a speed reducer is fixedly arranged on the left side of the bottom of an inner cavity of the machine body, an output shaft of the motor is fixedly arranged with an access shaft of the speed reducer, a driving gear is fixedly arranged on an access shaft of the speed reducer, a driven gear is meshed above the driving gear, and the driven gear is fixedly arranged on the surface of the inlet pipe;
a heating box is fixedly installed on the right side of the machine body, an air pump is fixedly installed at the bottom of an inner cavity of the heating box, an air inlet end of the air pump penetrates through the outside of the heating box, a heater is fixedly installed on the inner wall of the heating box, hot air pipes are fixedly installed on the front side and the rear side of the inner cavity of the machine body, and one end of each hot air pipe is communicated with the heating box;
the screening component comprises a rotary drum, the right end of the rotary drum is rotatably connected with the inner wall of the machine body, the right end of the feeding pipe is communicated with the left end of the rotary drum, a first sieve mesh, a second sieve mesh and a discharge hole are respectively formed in the surface of the rotary drum, the aperture of the first sieve mesh is smaller than that of the second sieve mesh, and the aperture of the second sieve mesh is smaller than that of the discharge hole.
Preferably, the left side fixed mounting of organism has the support, the top fixed mounting of support has the feeder hopper, the other end of feeder hopper extends to the inside of inlet pipe.
Preferably, the bottom of the inner cavity of the body is respectively and fixedly provided with a first partition plate and a second partition plate, the number of the second partition plates is two, and the top of each second partition plate is designed in an arc shape.
Preferably, the inner wall of the heating box is fixedly provided with a heat insulation plate, the heat insulation plate is positioned between the heater and the air extractor, and the exhaust end of the air extractor penetrates through the heat insulation plate.
Preferably, the inner wall of the rotary drum is hinged with three knocking blocks, and the three knocking blocks are annularly distributed on the inner wall of the rotary drum at equal intervals.
Preferably, the inner wall fixed mounting of organism has the guide plate, the bottom of organism intercommunication has the discharging pipe, the quantity of discharging pipe is three.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, external gas is extracted by the air extractor, the gas is heated by the heater, and then hot air is blown into the rotary drum through the hot air pipe to heat and dry the screened material, so that mesh blockage caused by material agglomeration is avoided, and meanwhile, in the rotating process of the rotary drum, the knocking block can knock the inner wall of the rotary drum, so that the mesh blockage of the rotary drum by the material is further avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front sectional view of the body of the present invention;
FIG. 3 is a partial top sectional view of the housing of the present invention;
fig. 4 is a left side sectional view of the machine body of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a body; 2. a screen assembly; 201. a rotating drum; 202. a first screen hole; 203. a second sieve pore; 204. a discharge hole; 3. a feed pipe; 4. a motor; 5. a speed reducer; 6. a driving tooth; 7. a driven tooth; 8. a heating box; 9. an air extractor; 10. a heater; 11. a hot air pipe; 12. a support; 13. a feed hopper; 14. a first separator; 15. a second separator; 16. a heat insulation plate; 17. knocking the block; 18. a baffle; 19. and (4) discharging the pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
Example one
Referring to the drawings, the present invention provides a technical solution: a hot air screening device comprises a machine body 1, a screening component 2 is arranged inside the machine body 1, a feeding pipe 3 is arranged on the left side of the screening component 2, the left end of the feeding pipe 3 penetrates through the outside of the machine body 1, the feeding pipe 3 is rotatably connected with the machine body 1, a motor 4 is fixedly mounted on the left side of the machine body 1, a speed reducer 5 is fixedly mounted on the left side of the bottom of an inner cavity of the machine body 1, an output shaft of the motor 4 is fixedly mounted with an input shaft of the speed reducer 5, a driving tooth 6 is fixedly mounted on an output shaft of the speed reducer 5, a driven tooth 7 is meshed above the driving tooth 6, and the driven tooth 7 is fixedly mounted on the surface of the feeding pipe 3;
a heating box 8 is fixedly arranged on the right side of the machine body 1, an air pump 9 is fixedly arranged at the bottom of an inner cavity of the heating box 8, an air inlet end of the air pump 9 penetrates through the outside of the heating box 8, a heater 10 is fixedly arranged on the inner wall of the heating box 8, hot air pipes 11 are fixedly arranged on the front side and the rear side of the inner cavity of the machine body 1, and one end of each hot air pipe 11 is communicated with the heating box 8;
the screen assembly 2 comprises a rotary drum 201, the right end of the rotary drum 201 is connected with the inner wall of the machine body 1 in a rotating manner, the right end of the feeding pipe 3 is communicated with the left end of the rotary drum 201, the surface of the rotary drum 201 is respectively provided with a first sieve mesh 202, a second sieve mesh 203 and a discharge hole 204, the aperture of the first sieve mesh 202 is smaller than that of the second sieve mesh 203, and the aperture of the second sieve mesh 203 is smaller than that of the discharge hole 204.
Specifically, a support 12 is fixedly mounted on the left side of the machine body 1, a feed hopper 13 is fixedly mounted on the top of the support 12, and the other end of the feed hopper 13 extends into the feeding pipe 3.
Specifically, the bottom of the inner cavity of the machine body 1 is respectively and fixedly provided with a first partition plate 14 and a second partition plate 15, the number of the second partition plates 15 is two, and the top of each second partition plate 15 is designed in an arc shape.
Specifically, a heat insulation plate 16 is fixedly installed on the inner wall of the heating box 8, the heat insulation plate 16 is positioned between the heater 10 and the air extractor 9, and the exhaust end of the air extractor 9 penetrates through the heat insulation plate 16.
The working principle of the embodiment is as follows: the material is put into the rotary drum 201 through the feed hopper 13, the output shaft of the motor 4 can transmit power to the speed reducer 5, the output shaft of the speed reducer 5 drives the driving tooth 6 to rotate, the driving tooth 6 drives the driven tooth 7 to rotate, the driven tooth 7 drives the feed pipe 3 to rotate, the feed pipe 3 drives the rotary drum 201 to rotate, the rotary drum 201 can sieve the material in the rotating process, the rotary drum 201 is obliquely arranged, so that the material can move to the right side through the gravity of the rotary drum 201 in the sieving process, the material leaks through different meshes to achieve the sieving effect, and the sieved material flows out to the outside through the discharge pipe 19 to be collected;
in the process of material screening, air extractor 9 extracts outside gas to heat gas through heater 10, then blow hot-blast pipe 11 with the hot-blast to the inside of rotary drum 201, heat the stoving to the material of sieving, avoid the material caking to lead to the mesh to block up.
Example two
The structure of the present embodiment is substantially the same as that of the first embodiment, except that the inner wall of the drum 201 is hinged with three knocking blocks 17, the three knocking blocks 17 are annularly distributed on the inner wall of the drum 201 at equal intervals, and during the rotation of the drum 201, the knocking blocks 17 can knock the inner wall of the drum 201, thereby further preventing the material from blocking the meshes of the drum 201.
EXAMPLE III
The structure of this embodiment is basically the same as embodiment one, and the difference lies in, and the inner wall fixed mounting of organism 1 has guide plate 18, and the bottom intercommunication of organism 1 has discharging pipe 19, and the quantity of discharging pipe 19 is three, through the setting of guide plate 18, can carry out the water conservancy diversion to the material after the screening, makes its confluence to discharging pipe 19 department to discharge in following discharging pipe 19, avoid producing the material and pile up.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.