CN217120868U - Double-rotating-sieve type airflow sieve - Google Patents

Abstract

The utility model relates to a rubbing crusher, in particular to two rotary screen formula air current sieves, including frame, shell, screen frame, feed mechanism, go up the sieve material hopper and sieve the material hopper down the upper portion of installing the shell in the frame is equipped with two cavities that just communicate each other side by side in this shell, all installs the screen frame in these two cavities, all is equipped with the feed inlet at the rear portion of two cavities, installs a feed mechanism jointly in two feed inlet departments, is equipped with the last sieve material hopper rather than inside intercommunication at the anterior lower extreme of two cavities, is equipped with the material hopper that sieves down in the bottom of shell. The utility model has the advantages of scientific and reasonable design, have convenient operation, improve sieve powder efficiency and sieve powder volume, be difficult for breaking down, easily realize, be a two rotation sieve formula air current sieves that have higher novelty.

Description

Double-rotating-sieve type airflow sieve

Technical Field

The utility model relates to a rubbing crusher, especially two rotary screen formula air current sieves.

Background

An air flow sieve is a high-precision sieving device for sieving micro-fine powder, and is widely applied to the industries of chemical industry, medicine, food, papermaking, metallurgy, building materials, rubber, machinery and the like. And can carry out good continuous screening on the powdery materials with the micro powder fineness within the range of 80-500 meshes, and the screen can be arbitrarily replaced according to the actual production requirement.

Most of the existing air flow sieves in China are of a single sieve body structure, after powder enters the sieve, high-speed air flow is used as a carrier in a closed state, and the fully diffused powder particles are sprayed to a sieve with enough kinetic energy to achieve the purpose of rapid grading.

In the crushing production process, when a single sieve works, the productivity is low and the production efficiency is low due to the small sieving area; when the single-screen powder sieving machine is used for processing oil viscous materials, the rotating speed of the pulverizer is high when the materials are pulverized, so that the materials are easy to generate high temperature when being pulverized, the oil of the oil viscous materials is easy to decompose at the high temperature, and when the materials pass through the single-screen powder sieving machine, the inner space of the single-screen powder sieving machine is small, the materials are bonded in the rotating process of a screen body, a screen mesh is blocked, and the work of the powder sieving machine is influenced. However, the existing air flow screen equipment cannot meet the actual production requirement, so that an air flow screen improvement device for solving the problems needs to be developed.

Disclosure of Invention

An object of the utility model is to provide a two rotation sieve formula air current sieves, the device equipment structure possess design scientific and reasonable, the advantage of convenient operation to improve sieve powder efficiency and sieve powder volume, the difficult two rotation sieve formula air current sieves that break down, easily realize.

The utility model provides a its technical problem realize through following technical scheme:

two rotation sieve formula air current sieves, two rotation sieve formula air current sieves include frame, shell, screen frame, feed mechanism, go up sieve material hopper and sieve material hopper down the shell is installed on frame upper portion, is equipped with two cavities that just communicate each other side by side in this shell, all installs the screen frame in these two cavities, all is equipped with the feed inlet at the rear portion of two cavities, installs a feed mechanism jointly in two feed inlet departments, is equipped with the last sieve material hopper rather than inside intercommunication at the anterior lower extreme of two cavities, is equipped with sieve material hopper down in the bottom of shell.

Preferably, the two sieve bodies rotate in opposite directions.

Preferably, an air supplementing opening is formed in the middle of the top of the shell, and an upper cover is installed at the air supplementing opening.

Preferably, the double-rotating-screen type airflow screen further comprises a partition board, the partition board for partitioning the two screen bodies is arranged inside the shell, and the partition board is located in the middle of the air supply opening.

Preferably, the cross-section of the lower sieve material discharging hopper is of a right-angle trapezoidal structure, a right-angle surface of the right-angle trapezoidal structure is located on one side of the rack, and a vortex rapping device is installed on an inclined surface of the right-angle trapezoidal structure.

Preferably, the feeding mechanism is composed of screw feeders and material distributors, the screw feeders are installed at the positions of the feeding ports, openings are formed above the screw feeders, the material distributors are of tee-joint structures, and two pipe orifices located at the lower portions of the tee-joint structures are connected with the openings above the screw feeders through flanges.

Preferably, the double-rotating-sieve type airflow sieve further comprises an air closer, the air closer is mounted at a pipe orifice at the upper part of the tee joint structure, and the axial direction of the air closer is perpendicular to the feeding direction of the material.

The utility model discloses an advantage and beneficial effect do:

1. the utility model discloses two rotary screen formula air current sieves, through the air current sieve design by a screen frame work before for two, strengthened the ability that current air current sieve handled the material, the material that gets into is under the effect of two screen frames, can be quick obtains stage treatment, because casing space's increase, effectively avoided the material by it be the crowding of oily viscidity material, avoided the jam to the screen cloth, guarantee air current sieve's normal work. Materials which do not meet the fineness requirement are pushed to a material discharging hopper of the upper screen by air flow to be discharged, and can be recycled to the crusher for secondary crushing through a pipeline; the materials meeting the fineness requirement are discharged from a lower screening material discharging hopper.

2. The double-rotating-sieve type airflow sieve of the utility model can conveniently relieve the negative pressure inside the shell through the arrangement of the air supply opening, and ensure the flow of the air inside the shell; meanwhile, when needed, the air supplementing opening can be connected with a pipeline connected to the dust removal cabinet, so that the dust in the dust removal cabinet can be conveniently treated.

3. The utility model discloses two rotation sieve formula air current sieves, the air current reverse rotation autonomous working in the double screen when the powder shifter operation, can avoid the double screen during operation through setting up of baffle, and the air current of production influences each other, guarantees the normal clear of sieve material work.

4. The utility model discloses two rotary screen formula air current sieves, through the structure that the hopper design is right trapezoid for the cross-section of sieving down, the purpose is in order to all shift the ejection of compact to one side of equipment, has avoided because of the equipment volume increase, and the design is when the middle part, the inconvenient problem of collecting the material. The vortex vibrating beater is arranged on the inclined plane, so that the blanking is facilitated, and the material is prevented from being stored in the hopper.

5. The utility model discloses two rotary screen formula air current sieves, the feeding volume that can guarantee two sieves through the setting of closing the wind ware is unanimous, avoids making two feed inlets feeding uneven because of the effect of air current, the crowded condition of material appears.

6. The utility model has the advantages of scientific and reasonable design, have convenient operation, improve sieve powder efficiency and sieve powder volume, be difficult for breaking down, easily realize, be a two rotation sieve formula air current sieves that have higher novelty.

Drawings

Fig. 1 is a schematic structural diagram of the present invention (omitting the obturator).

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic structural view illustrating the assembly of the present invention.

Reference numerals: 1-lower screening material discharging hopper, 2-air supplementing opening, 3-shell, 4-upper screening material discharging hopper, 5-frame, 6-distributor, 7-screw feeder, 8-air-lock device, 9-screen body, 10-clapboard and 11-vortex vibration beater.

Detailed Description

The present invention will be described in further detail with reference to specific examples, which are provided for illustrative purposes only, and are not intended to be limiting, and the scope of the present invention should not be limited thereby.

The double-rotating-screen type airflow screen is innovative in that: including frame 5, shell 3, screen frame 9, feed mechanism, go up sieve material hopper 4 and sieve material hopper 1 down the shell is installed on upper portion in the frame, is equipped with two cavities that just communicate each other side by side in this shell, all installs by the rotatory screen frame of motor drive in these two cavities, all is equipped with the feed inlet at the rear portion of two cavities, installs a feed mechanism jointly in two feed inlet departments, is equipped with the last sieve material hopper rather than inside intercommunication at the anterior lower extreme of two cavities, is equipped with sieve material hopper down in the bottom of shell.

The two sieve bodies rotate reversely.

An air supplement opening 2 is arranged in the middle of the top of the shell, and an upper cover is arranged at the air supplement opening.

The air supply device further comprises a partition plate 10, wherein the partition plate for separating the two screen bodies is arranged in the shell and is positioned in the middle of the air supply opening. The negative pressure in the screening machine can be conveniently relieved through the arrangement of the air supply opening, and the flow of air in the screening machine is ensured; meanwhile, when needed, the air supplementing opening can be connected with a pipeline connected to the dust removal cabinet, so that the dust in the dust removal cabinet can be conveniently treated. The baffle plate is arranged at the middle lower part of the air supply opening, so that openings for buffering pressure are formed in the two airflow sieves.

The cross-section of lower sieve material discharge hopper is a right-angle trapezoidal structure, and the right-angle face of this right-angle trapezoidal is located one side of frame, installs vortex on the inclined plane of right-angle trapezoidal and shakes and beats ware 11. The utility model is convenient for collecting materials, and the discharge hole of the lower screening material discharge hopper is arranged at one side of the bottom of the shell; and in order to avoid material storage in the hopper, a vortex vibration beater is arranged on the inclined hopper wall of the lower screening material discharging hopper, so that smooth work of the whole system is ensured.

The feeding mechanism is composed of a screw feeder 7 and a distributor 6, the screw feeder is installed at each feeding port, an opening is formed above each screw feeder, the distributor is of a three-way structure, and two pipe orifices located at the lower part of the three-way structure are connected with the openings above the screw feeders through flanges.

The air-tight device is characterized by further comprising an air-tight device 8, wherein the air-tight device is installed at a pipe orifice on the upper portion of the three-way structure, the axial direction of the air-tight device is perpendicular to the feeding direction of materials, the air-tight device is driven by a motor, and the direction of an output shaft of the motor is the axial direction of the air-tight device. The air seal device can ensure that the feeding amount of the airflow sieves on the two sides is consistent.

The working principle of the double-rotary-screen type airflow screen is as follows:

at present, the material processing capacity of the airflow screen is low, and a crusher in the prior step is thrown into the airflow screen for screening after the material in the crusher is completely crushed to the required fineness. That is, the conventional pulverization is completed in one process and then the next process is performed. However, since the material crushing degree is related to the rotation speed of the crusher, the higher the rotation speed is, the higher the crushed degree is, and with the high-speed rotation of the motor, the material is sheared and collided back and forth to generate heat, and the temperature rise not only affects the quality of the material but also affects the working efficiency of the equipment.

The material of oil viscidity can take place to bond under high temperature, is sent to current air current sieve back and is through the screening of longer time, and the material can be plugged up the screen cloth to influence air current sieve's work.

Compared with the prior art, the airflow screen with the increased screening area can process more materials. During concrete operation, still can set gradually screw rod material loading machine and coarse crusher in upper screen material discharge hopper department, the discharge gate of coarse crusher is connected with the feed inlet of rubbing crusher, realizes the crushing circulation of material, and the material can be smashed the limit and filter, has avoided the high temperature problem that long-time work caused, and the material is unloading in the twinkling of an eye in the air current sieve, has avoided the bonding of material on the screen cloth.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and appended claims, and therefore, the scope of the invention is not limited to the disclosure of the embodiments and drawings.

Claims (7)

1. Two rotary screen formula air current sieves, its characterized in that: the double-rotary-screen type airflow screen comprises a frame (5), a shell (3), a screen body (9), a feeding mechanism, an upper screening material discharging hopper (4) and a lower screening material discharging hopper (1), wherein the shell (3) is installed on the upper portion of the frame (5), two cavities which are parallel to each other and communicated with each other are arranged in the shell (3), the screen body (9) is installed in each of the two cavities, feed inlets are formed in the rear portions of the two cavities, the feeding mechanism is installed at the positions of the two feed inlets jointly, the upper screening material discharging hopper (4) communicated with the inside of the two cavities is arranged at the lower end of the front portion of each of the two cavities, and the lower screening material discharging hopper (1) is arranged at the bottom of the shell (3).

2. The dual rotary screen airflow screen of claim 1, wherein: the two sieve bodies (9) rotate in opposite directions.

3. The dual rotary screen airflow screen of claim 1, wherein: an air supplementing opening (2) is formed in the middle of the top of the shell (3), and an upper cover is installed at the air supplementing opening.

4. The dual rotary screen airflow screen of claim 3, wherein: the air supply device is characterized by further comprising a partition plate (10), wherein the partition plate (10) for separating the two screen bodies (9) is arranged inside the shell (3), and is located in the middle of the air supply opening (2).

5. The dual rotary screen airflow screen of claim 1, wherein: the cross section of the lower screen material discharging hopper (1) is of a right-angle trapezoidal structure, the right-angle surface of the right-angle trapezoidal structure is located on one side of the rack, and a vortex rapping device (11) is installed on the inclined surface of the right-angle trapezoidal structure.

6. The dual rotary screen airflow screen of claim 1, wherein: the feeding mechanism is composed of screw rod feeders (7) and material distributors (6), the screw rod feeders (7) are installed at the positions of the feeding ports, openings are formed in the upper portions of the screw rod feeders (7), the material distributors are of tee joint structures, and two pipe orifices located at the lower portions of the tee joint structures are connected with the openings in the upper portions of the screw rod feeders (7) through flanges.

7. The dual rotary screen airflow screen of claim 6, wherein: the double-rotary-screen type airflow screen further comprises an air closing device (8), the air closing device (8) is installed at a pipe orifice positioned at the upper part of the three-way structure, and the axial direction of the air closing device (8) is perpendicular to the feeding direction of materials.

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