CN107930780B

CN107930780B - Cleaning screen and movable sand mill

Info

Publication number: CN107930780B
Application number: CN201711399081.7A
Authority: CN
Inventors: 龚伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2023-07-07
Anticipated expiration: 2037-12-20
Also published as: CN107930780A

Abstract

The invention provides a cleaning screen and a movable sand mill, and relates to the technical field of sand milling. A cleaning screen, comprising a screen body and a cleaning device for cleaning the screen; the screen body is arranged in a grinding cylinder of the sand mill and is used for filtering ground materials; the cleaning device comprises a cleaning pump, a cleaning pipeline and a spray head, wherein two ends of the cleaning pipeline are respectively connected with the cleaning pump and the spray head, the screen body at least comprises a smooth surface, the smooth surface is opposite to the spray head, and a cleaning medium is sprayed out of the spray head through the cleaning pipeline through the cleaning pump to clean the screen body; the cleaning pipeline can pass through the hollow rotating shaft of the turbine of the sand mill. The invention has the advantages of no adhesion during screening and good cleaning effect.

Description

Cleaning screen and movable sand mill

Technical Field

The invention relates to the technical field of sand mills, in particular to a cleaning screen and a movable sand mill.

Background

At present, the vertical nano sand mill is basically provided with a shaft at the upper part and the lower part of the grinding cylinder, the lower shaft drives a dispersion turbine arranged on the lower shaft to rotate under the action of a motor, and kinetic energy is transmitted to zirconium beads (grinding media) in the grinding cylinder. The materials are ground to a certain fineness under the actions of mutual extrusion, friction, impact and dispersion turbine shearing force among zirconium beads, filtered by a screen mesh on a shaft above a grinding cylinder body, enter a discharging pipe (a through hole is drilled in the center of the shaft as a discharging pipe) in the shaft through a material leakage hole (the material leakage hole is drilled in the side surface of the shaft), and are discharged under the action of a pump.

The prior art mainly has the following defects:

the screen mesh material of the filtering device is not easy to fall off when adhered to the surface of the screen mesh material, so that the screen mesh is frequently blocked, and the screen mesh is inconvenient to clean (the grinding cylinder is required to be opened by stopping the machine, and the screen mesh is taken off from the shaft and then cleaned).

Based on the above problems, it is important to provide a screen which prevents adhesion and is convenient to clean.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a cleaning screen to solve the problems.

The invention provides a cleaning screen, which is used in a sand mill and comprises a screen body and a cleaning device for cleaning the screen;

the screen body is arranged in a grinding cylinder of the sand mill and is used for filtering ground materials;

the cleaning device comprises a cleaning pump, a cleaning pipeline and a spray head, wherein two ends of the cleaning pipeline are respectively connected with the cleaning pump and the spray head, the screen body at least comprises a smooth surface, the smooth surface is opposite to the spray head, and a cleaning medium is sprayed out of the spray head through the cleaning pipeline through the cleaning pump to clean the screen body;

the cleaning pipeline can pass through the hollow rotating shaft of the turbine of the sand mill.

As a further technical scheme, the smooth surface adopts the sphere, the screen cloth body includes sphere and plane, the sphere is located the plane bottom, just be provided with a plurality of screen cloth through-holes that run through on sphere and the plane.

As a further technical scheme, the grinding cylinder is internally filled with grinding media and is respectively communicated with the feeding device and the discharging device, and a grinding assembly is arranged in the grinding cylinder;

the grinding assembly comprises a hollow rotating shaft and a turbine sleeved on the hollow rotating shaft, the hollow rotating shaft penetrates through the cleaning pipeline, one end of the cleaning pipeline, which is positioned in the hollow rotating shaft, is connected with the spray head, and one end, which is positioned outside the hollow rotating shaft, is connected with the cleaning pump.

As a further technical scheme, the discharging device comprises a first motor, a motor shaft, a discharging pipe and a storage tank;

the first motor is located the grinding vessel top, and its inside runs through there is the motor shaft, the inside central through-hole that is provided with of motor shaft, motor shaft one end stretches into the grinding vessel is inside, the other end with the discharging pipe is connected, discharging pipe and discharging pump respectively with the inside intercommunication of holding vessel.

As a further technical scheme, the motor shaft is connected with the discharging pipe through a rotary joint.

As a further technical scheme, one end of the motor shaft extending into the grinding cylinder is provided with a plurality of material leakage holes for sucking materials.

As a further technical scheme, the hollow rotating shaft is sleeved with a gasket, and the gasket is positioned between the turbine and the grinding cylinder.

As a further technical scheme, the screen body adopts a ceramic screen.

As a further technical solution, the grinding medium uses zirconium beads.

Compared with the prior art, the cleaning screen provided by the invention has the technical advantages that:

the invention provides a cleaning screen, which is used in a sand mill and comprises a screen body and a cleaning device for cleaning the screen; the screen body is arranged in a grinding cylinder of the sand mill and is used for filtering ground materials; the cleaning device comprises a cleaning pump, a cleaning pipeline and a spray head, wherein two ends of the cleaning pipeline are respectively connected with the cleaning pump and the spray head, the screen body at least comprises a smooth surface, the smooth surface is opposite to the spray head, and a cleaning medium is sprayed out of the spray head through the cleaning pipeline through the cleaning pump to clean the screen body; the cleaning pipeline can pass through the hollow rotating shaft of the turbine of the sand mill;

the screen body at least comprises a smooth surface, wherein one surface of the screen body, which is contacted with materials, is not easy to adhere to the materials, the smooth surface and the spray head are arranged oppositely, if the materials adhere to the screen body, water columns sprayed by the spray head can be used for directly washing, the materials adhered to the surface of the screen body can be easily washed, and the blocking phenomenon is thoroughly solved.

The cleaning screen provided by the invention has a simple structure, when blocking occurs, the cleaning pump is started, the cleaning screen body (pumping water or other solvents can be carried out according to different high-pressure pumps of materials) is convenient and quick, and more importantly, the cleaning screen body does not need to be stopped, and the cleaning is carried out simultaneously in the normal operation of the sand mill, so that the efficiency is high.

A second object of the present invention is to provide a movable sander to solve the above-mentioned problems.

The invention provides a movable sand mill, which comprises a movable frame, a sand mill and a cleaning screen;

the movable frame comprises a frame and a plurality of rollers arranged below the frame, and the grinding cylinder is arranged on the upper surface of the frame.

Compared with the prior art, the movable sand mill provided by the invention has the technical advantages that:

the movable sand mill comprises a movable frame, a sand mill and the cleaning screen; the movable frame comprises a frame and a plurality of rollers positioned below the frame, and the grinding cylinder is arranged on the upper surface of the frame;

the movable sand mill provided by the invention comprises the cleaning screen, so that the technical advantages and effects achieved by the movable sand mill comprise the technical advantages and effects achieved by the cleaning screen, and the detailed description is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a cleaning screen according to an embodiment of the present invention;

FIG. 2 is a schematic view of a polishing cylinder according to the embodiment of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of a sand mill according to the embodiment of the present invention shown in FIG. 2;

fig. 4 is a schematic structural view of a movable sand mill according to the embodiment of the present invention shown in fig. 3.

Icon: 100-frames; 200-rolling wheels; 300-grinding cylinder; 310-zirconium beads; 320-a screen body; 321-sphere; 322-plane; 330-cleaning device; 331-a cleaning pump; 332-cleaning the pipeline; 333-spray head; 400-a storage tank; 500-discharging pipe; 600-a first motor; 610-motor shaft; 611-a central through hole; 620-a swivel; 630-leakage hole; 700-a second motor; 710—a hollow spindle; 720-a turbine; 730-pulleys; 800-a discharge pump; 900-washers.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The invention will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.

The specific structure is shown in FIGS. 1-4:

Example 1

As shown in fig. 1 to 3, the present embodiment provides a cleaning screen for a sand mill, which includes a screen body 320 and a cleaning device 330 for cleaning the screen; the screen body 320 is disposed in the grinding cylinder 300 of the sand mill, and is used for filtering the ground material; the cleaning device 330 includes a cleaning pump 331, a cleaning pipeline 332, and a nozzle 333, wherein two ends of the cleaning pipeline 332 are respectively connected with the cleaning pump 331 and the nozzle 333, the screen body 320 includes at least one smooth surface, the smooth surface is opposite to the nozzle 333, and the cleaning medium is sprayed from the nozzle 333 to clean the screen body 320 through the cleaning pump 331 via the cleaning pipeline 332; the purge line 332 is capable of passing through the hollow shaft 710 of the sand mill turbine 720.

The beneficial effects of this embodiment are:

the screen body 320 of this embodiment includes at least a smooth surface, and this kind of screen body 320 is smooth surface with the one side of material contact, is difficult for by the adhesion of material, and this smooth surface adopts relative setting with shower nozzle 333, if the adhesion of material is on screen body 320, can directly wash with shower nozzle 333 spun water column, can wash easily and fall the adhesion at screen body 320 surface material, thoroughly solves the putty phenomenon.

The cleaning screen provided in this embodiment has a simple structure, when the material blockage occurs, the cleaning pump 331 is turned on, the cleaning screen body 320 (according to different high-pressure pumps for pumping water or other solvents) is convenient and quick, more importantly, the cleaning screen does not need to be stopped, and the cleaning efficiency is high during normal operation of the sand mill.

Specifically, the following describes in detail the respective structures of the cleaning screen in this embodiment:

in an alternative scheme of this embodiment, the cleaning pump 331 adopts a high-pressure pump, the nozzle 333 is connected to the hollow rotating shaft 710, specifically, the nozzle 333 is embedded at the upper end of the hollow rotating shaft 710, the nozzle 333 can rotate at a high speed along with the hollow rotating shaft 710 to generate a larger torque force combined with the pressure transmitted by the high-pressure pump, so that the material adhered to the surface of the screen body 320 can be easily cleaned, and the blocking phenomenon is thoroughly solved.

In an alternative of this embodiment, the smooth surface adopts a spherical surface 321, the screen body 320 includes a spherical surface 321 and a plane 322, the spherical surface 321 is located at the bottom of the plane 322, and a plurality of through screen holes are disposed on the spherical surface 321 and the plane 322.

In an alternative of this embodiment, the grinding drum 300 is filled with a grinding medium and is respectively communicated with a feeding device and a discharging device, and a grinding assembly is disposed inside the grinding drum 300; the grinding assembly comprises a hollow rotating shaft 710 and a turbine 720 sleeved on the hollow rotating shaft 710, the hollow rotating shaft 710 internally penetrates through the cleaning pipeline 332, one end of the cleaning pipeline 332 positioned in the hollow rotating shaft 710 is connected with the spray head 333, and one end of the cleaning pipeline positioned outside the hollow rotating shaft 710 is connected with the cleaning pump 331.

In an alternative of this embodiment, the discharging device includes a first motor 600, a motor shaft 610, a discharging pipe 500, and a storage tank 400; the first motor 600 is located at the top of the grinding drum 300, a motor shaft 610 penetrates through the inside of the first motor 600, a central through hole 611 is formed in the motor shaft 610, one end of the motor shaft 610 extends into the grinding drum 300, the other end of the motor shaft is connected with the discharging pipe 500, and the discharging pipe 500 and the discharging pump 800 are respectively communicated with the inside of the storage tank 400.

The motor shaft 610 is internally provided with a central through hole 611, the bottom of the motor shaft is provided with a leakage hole 630, the motor shaft is multipurpose, is used as an output shaft of the motor, is also used as a discharging channel, and is directly discharged from the motor shaft 610, and has the advantages of simple structure, low failure rate and convenience in disassembly and assembly.

In an alternative embodiment, the motor shaft 610 is connected to the outlet pipe 500 via a rotary joint 620.

In an alternative embodiment of the present invention, a plurality of material leakage holes 630 for sucking the material are provided at an end of the motor shaft 610 extending into the grinding cylinder 300.

In an alternative of this embodiment, a washer 900 is sleeved on the hollow shaft 710, and the washer 900 is located between the turbine 720 and the grinding drum 300. The hollow shaft 710 is driven by the second motor 700 and the pulley 730.

In an alternative to this embodiment, the screen body 320 is a ceramic screen. The screen body 320 of the prior art is a cylindrical metal wedge-shaped net, which is easy to deform under the high-speed impact of zirconium beads and materials to cause bead leakage, and since the screen body 320 in the embodiment adopts a ceramic screen, the material is harder, and the screen holes cannot deform to avoid bead leakage.

In the alternative of this embodiment, zirconium beads 310 are used as the grinding media.

Specifically, in this embodiment, a screen body 320 (may be made of a ceramic material or other anticorrosive material) is installed at the top-to-bottom third of the grinding drum 300, one surface of the screen body 320 is a plane 322, the other surface is a smooth spherical surface 321, a plurality of through screen holes are formed between the spherical surface 321 and the plane 322, the aperture is determined according to the size of the material, the grinding medium and the material with larger particle size are blocked outside the spherical surface 321 under the combined action of gravity, centrifugal force and the screen body 320, and the material meeting the requirement is discharged through the motor shaft 610 of the first motor 600 after reaching the plane 321. The cleaning medium is sprayed out from the spray head 333 through the cleaning pump 331 via the cleaning pipeline 332 to clean the spherical surface 321 of the screen body 320, and the material attached to the spherical surface 321 is removed under the action of higher water pressure and torsion force due to the continuous rotation of the hollow rotating shaft 710, so that the phenomenon of screen blocking is solved.

Example two

As shown in fig. 4, in the first embodiment, a movable sand mill provided in this embodiment includes a movable frame 100, a sand mill, and the cleaning screen; the movable housing 100 includes a housing 100 and a plurality of rollers 200 disposed thereunder, and the grinding drum 300 is disposed on an upper surface of the housing 100.

The beneficial effects of this embodiment are:

the movable sand mill that this embodiment provided includes above-mentioned washing screen cloth, from this, the technical advantage and the effect that this movable sand mill reached include the technical advantage and the effect that above-mentioned washing screen cloth reached, in addition, this sand mill bottom is provided with movable frame, drives the sand mill through the gyro wheel and removes, has reached the convenient effect of removal.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A cleaning screen for a sand mill, comprising a screen body and a cleaning device for cleaning the screen;

the cleaning pipeline can pass through the hollow rotating shaft of the turbine of the sand mill;

the smooth surface adopts a spherical surface, the screen body comprises a spherical surface and a plane, the spherical surface is positioned at the bottom of the plane, and a plurality of through screen holes are formed in the spherical surface and the plane;

the grinding cylinder is internally filled with grinding media and is respectively communicated with the feeding device and the discharging device, and a grinding assembly is arranged in the grinding cylinder;

the grinding assembly comprises a hollow rotating shaft and a turbine sleeved on the hollow rotating shaft, the inside of the hollow rotating shaft penetrates through the cleaning pipeline, one end of the cleaning pipeline, which is positioned in the hollow rotating shaft, is connected with the spray head, and one end, which is positioned outside the hollow rotating shaft, is connected with the cleaning pump;

the discharging device comprises a first motor, a motor shaft, a discharging pipe and a storage tank;

the first motor is positioned at the top of the grinding cylinder, a motor shaft penetrates through the first motor, a central through hole is formed in the motor shaft, one end of the motor shaft extends into the grinding cylinder, the other end of the motor shaft is connected with the discharging pipe, and the discharging pipe and the discharging pump are respectively communicated with the inside of the storage tank;

the motor shaft is connected with the discharging pipe through a rotary joint.

2. The screen according to claim 1, wherein a plurality of leakage holes for sucking in the material are provided at an end of the motor shaft extending into the grinding drum.

3. The cleaning screen of claim 1, wherein a washer is sleeved on the hollow shaft, the washer being located between the turbine and the grinding drum.

4. The cleaning screen of claim 1, wherein the screen body is a ceramic screen.

5. The cleaning screen of claim 1, wherein the grinding media is zirconium beads.

6. A movable sander comprising a movable housing, a sander, and a cleaning screen as set forth in any one of claims 1-5;