WO2019091333A1 - 螺旋筛理的网带筛及使用方法和用途 - Google Patents
螺旋筛理的网带筛及使用方法和用途 Download PDFInfo
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- WO2019091333A1 WO2019091333A1 PCT/CN2018/113571 CN2018113571W WO2019091333A1 WO 2019091333 A1 WO2019091333 A1 WO 2019091333A1 CN 2018113571 W CN2018113571 W CN 2018113571W WO 2019091333 A1 WO2019091333 A1 WO 2019091333A1
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- Prior art keywords
- screen
- mesh belt
- sieve
- particle
- mesh
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/36—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro in more than one direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/10—Screens in the form of endless moving bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/522—Cleaning with brushes or scrapers with brushes
- B07B1/524—Cleaning with brushes or scrapers with brushes the brushes being rotating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/54—Cleaning with beating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Definitions
- the present invention provides a physical screening machine, in particular a machine for imparting a spiral motion for sieving, a machine for sieving in an industrial granular material or mining industry, and a physical grading method for the granular material using the machine.
- Screening machines commonly used in industrial and mining enterprises include inertial vibrating screens and resonant screens.
- the vibrating screen for mining works by the reciprocating rotary vibration generated by the vibration of the vibrator.
- the upper rotating weight of the vibrator causes a plane to oscillate the surface of the screen, while the lower rotating weight causes the screen surface to produce a cone-shaped rotating vibration.
- the combined effect of the vibrating effect causes a complex-rotating vibration of the screen surface.
- Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and an ellipse on the vertical plane. Adjust the excitation force of the upper and lower rotary weights to change the amplitude.
- Adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen movement trajectory and change the movement trajectory of the material on the screen surface.
- Most are a filter mechanical separation device for mud solid phase treatment, consisting of a screen and a vibrator.
- the thickness of the screen is shown by eyes.
- the mesh of 50 mesh or less is a coarse mesh
- the mesh of 80 mesh or more is a fine mesh.
- the vibrator is an eccentric wheel that rotates under the motor to vibrate the screen frame. Due to the vibration of the screen frame, the coarser solid particles remain on the screen surface when the mud flows to the screen surface, and are discharged from one end along the slope. The finer solid phase particles and the mud liquid flow through the sieve hole to the mud pool. .
- the physical sieving process is a process of dividing a group of broken materials having different particle sizes into a plurality of layers of different layers through a single layer or a plurality of layers of uniform pores, which is called sieving.
- the particles larger than the sieve holes are left on the sieve surface, which is called the sieve residue of the sieve surface, and the particles smaller than the sieve pores pass through the sieve holes, which are called the sieve bottoms of the sieve surface.
- the actual screening process is: after a large number of different sizes and sizes of coarse and scattered materials enter the screen surface, only a part of the particles are in contact with the screen surface. Due to the vibration of the screen box, the material layer on the screen is loosened, so that the large particles exist.
- the gap is further enlarged, and the small particles take the opportunity to pass through the gap and transfer to the lower layer or the conveyor. Since the small particle gap is small, the large particles cannot pass through, so that the original disordered particle group is separated, that is, the layer is stratified according to the particle size, and the arrangement rule of the small particles under the coarse particles is formed. The fine particles reaching the sieve surface are sieved through the sieve, and finally the coarse and fine particles are separated to complete the screening process.
- the resonant screen is a vibrating screen with a vibrating frequency of the screen surface that matches the natural vibration frequency of the screen surface (including the loaded material).
- this screening has a series of advantages of the general vibrating screen, and also has a prominent power consumption.
- the difference from the vibrating screen is that the vibrating screen works in a super-resonant state away from the resonance region; and the resonating screen works in a condition close to the resonance region, that is, the working frequency of the screening machine is close to its own natural vibration frequency. With this feature, it is possible to drive a large-area screen box with a small vibration force, so the power consumption of the resonance screen is small and the production capacity is large.
- the traditional sieve gives the kinetic energy of the sieved object small or linear motion, and the rolling performance during processing is poor, and it is easy to block, and the screening ability and the screening effect are difficult to be improved.
- the object of the present invention is to provide a spiral screen mesh screen and a use method of the mesh screen and the use in the industrial and mining industries.
- the invention makes the sieved object spirally move, significantly improves the quality of the sieve, and sieves. The ability has improved significantly.
- a mesh belt screen for industrial and mining comprising: a screen frame, wherein the screen frame is connected to the screen box by a boom or a rocker or a pendulum rod, wherein the screen box is provided with a set of mesh belt screens, and the flat return mechanism is installed.
- the mesh belt screen surface comprises a large particle sieve surface of 100-625 holes per square meter or a medium particle sieve surface of 626-4300 holes per square meter or 4301 holes per square meter - a 250,000-hole small particle screen surface, or a combination of two or three of said screen surfaces, said mesh belt screen surface connecting drive mechanism, said small particle mesh belt screen outside the bottom layer Equipped with a sloping discharge slide.
- the industrial and mining mesh belt screen, the large-grain mesh belt screen or the medium-grain mesh belt screen is located above the small particle mesh belt screen, the large medium-grain mesh belt screen and small particle net
- a guide plate is arranged between the screens, and the discharge slide plate is a set of inclined plates arranged opposite to each other at an inclination angle of 3-10 degrees, and the concave bottom surface formed by the inclined plate is provided with a small particle discharge mechanism.
- the discharge slide of the small particle mesh screen located on the bottom layer is a collection plate.
- the mesh belt screen has parallelly arranged chain sides on both sides of the sieve surface, and the chain strips are provided with a sieve surface composed of sieve sheets; the small particle mesh belt The sieve surface has an inclination angle of 0 to 5 degrees, and the large particle mesh belt sieve or the medium particle mesh belt sieve has a sieve surface inclination angle of 0 to 4 degrees, and the small particle mesh belt screen chain has a chain covering the chain.
- An inverted L-shaped rib is connected with a baffle plate between the chain and the screen box, or the chain on both sides has a rib perpendicular to the screen surface.
- the horizontal axis of the screen surface passes through the chain or replaces the pin of the chain, and the horizontal axis forms a screen surface by the hinged double loop wire.
- the end of the horizontal shaft is provided with a nut, and in particular, a tubular nut is provided at the end of the horizontal shaft having a diameter of less than 4 mm.
- the industrial and mining mesh belt screen wherein the screen surface is a steel stranded screen surface, a punched screen surface or a hinged screen surface or a woven screen surface, wherein the large and medium particle mesh screen is in the upper and lower screen surface
- the guide swash plate is installed, the double loop wire is a punched double ring piece, and the small miscellaneous discharge mechanism is a screw discharge mechanism.
- the industrial and mining mesh belt screen, the large particle mesh belt sieve or the medium particle mesh belt sieve has a lead-out plate between the sieve surface and the lower mesh screen surface, or the large particle mesh belt sieve or the medium particle mesh
- the sieved screen surface is an articulated tab structure to prevent the sieve material from being repeatedly sieved.
- the method for physical grading by using the industrial and mining mesh belt screen starting the driving mechanism of the mesh belt screening work and the flat returning mechanism of the sieve box flat return movement, forming a compound movement mode of the flat return movement and the straight belt movement of the mesh belt,
- the mixture material is put into the small particle cleaning sieve, and the small particles are sieved into the collection bin through the rolling of the bumps and the flat back movement during the straight process of the mesh belt;
- a sieve material comprising large particles, which enters the sieve surface of the large particle mesh belt sieve or the medium particle mesh belt sieve through the guide plate, and the sieve residue material is in the large particle mesh belt sieve or the medium particle mesh
- the sieved screen surface is collected by the rolling of the bumps and the flat back movement during the straight running of the mesh belt, and the obtained sieved objects are collected;
- the large particles left by the sieve are introduced into the collector to complete the preliminary cleaning and grading work.
- the method for physical grading by using the industrial and mining mesh belt screen is characterized in that: the driving mechanism for starting the mesh belt screening operation and the flat returning mechanism for the flat movement of the screen box are formed, and the flat back movement and the straight belt movement of the mesh belt are formed.
- the compound movement mode the mixture material is put into the large particle or medium particle mesh belt sieve, and the rolling of the bumps and the flat motion in the straight process of the mesh belt is carried out, and the large particles of the sieve are sieved into the collection bin, and the small particles under the sieve enter. The small particles are cleaned in the sieve, and the grading is completed by the rolling of the bumps and the flat back movement during the straight running of the mesh belt.
- a mesh belt screen used in the grain industry is used for sieving and grading of granular materials in the industrial and mining industries, and the mesh belt screen is a mesh belt screen which is sieved under a spiral motion of a combination of a flat back movement and a linear motion.
- Physical grading and grading is the inevitable outcome of the development of industrial refinement. It is the composition of tiny cells that the society is moving forward. The quality of the grading process indirectly or directly affects the development of society. In many industries, such as coal, iron ore, salt mines, and industrial chemical, food and condiment, pharmaceutical, paper, fertilizer, and metallurgy, coal, rubber, petroleum, automotive, ceramics, glass and other industries. Classification of solid particles and powder.
- Conventional vibrating screens work by reciprocating rotary vibration generated by vibrator excitation.
- the upper rotating weight of the vibrator causes a plane to oscillate the surface of the screen, while the lower rotating weight causes the screen surface to produce a cone-shaped rotating vibration.
- the combined effect of the vibrating effect causes a complex-rotating vibration of the screen surface.
- the vibration trajectory is projected as a circle on the horizontal plane, and the projection on the vertical plane is an ellipse.
- Adjust the excitation force of the upper and lower rotary weights to change the amplitude.
- Adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen movement trajectory and change the movement trajectory of the material on the screen surface.
- For dry material screening most of them can meet the general needs.
- For high moisture, there is adhesive material, and vibration during work makes the material adhere more tightly to the screen surface, causing material to be congested or forced to stop. Due to the limitation of working principle, the model consumes relatively high energy.
- the linear vibrating screen has higher production efficiency and better classification effect than the circular vibrating screen.
- the dynamic performance of the vibrating screen directly affects the screening efficiency and service life.
- the vibrating screen uses vibration motor excitation as a vibration source to make the material shake on the screen and is thrown up, while making a jumping linear motion forward.
- the direction of motion is single, and the blockage cannot be self-clearing.
- all the advantages are almost wiped out by the huge energy consumption and the Achilles heel that is easy to block and cannot be continuously produced.
- the invention adopts a flat-back motion mechanism, and takes the animal material to make a circular motion.
- the mesh belt is displaced with the animal material in the linear motion
- the final material track is a spiral motion with a sawtooth in the horizontal projection
- the vertical projection surface is a reciprocating rolling.
- the height is graded, and the material smaller than the mesh is screened.
- the material advances in the long-distance spiral motion, and finally Thorough cleanup grading.
- the large particle mesh belt sieve or the medium particle mesh belt sieve is located above the small particle mesh belt sieve, the large medium and small particle mesh belt sieve and the small particle mesh belt sieve are installed between
- the guide plate, the discharge slide plate is a set of inclined plates arranged opposite each other, so that a plurality of sets of sieve faces are arranged in parallel, and materials passing through a certain level of sieve face can be collected and separated in time, and a set of flat return mechanism can Simultaneous screening of multiple particle sizes is accomplished.
- the mesh belt screen of the invention is arranged with two chains arranged in parallel on both sides of the screen surface, wherein the chain is provided with a sieve surface composed of sieve sheets; the chain transmission transmission movement is stable, the bearing capacity is strong, and the small particle net With a sieve screen inclination angle of 0-5 degrees, the large particle mesh belt sieve or the medium particle mesh belt sieve has a screen inclination angle of 0-4 degrees, which is the best material processing effect.
- the small particle mesh screen chain of the present invention has an inverted L-shaped rib covering the chain, and a baffle plate is connected between the chain and the screen box, or the chain on both sides It has a rib perpendicular to the screen surface. It can effectively ensure that the spiral moving material will not affect the chain operation and prevent material spillage.
- the transverse axis of the mesh belt screen surface of the present invention passes through the chain or replaces the pin shaft of the chain, and the connection is very stable.
- the horizontal axis forms a screen surface by the hinged double loop wire to form a new one.
- the sieve surface structure has a remarkable improvement in the rotation performance and the service life is increased several times.
- a nut is arranged at the end of the horizontal shaft, in particular, a tubular nut is arranged at the end of the horizontal shaft having a diameter of less than 4 mm, so as to adjust the distance between the double loop wires, thereby completing the mesh number. Fine tune.
- the screen surface of the present invention may also be a conventional steel stranded screen surface, a punched screen surface, a hinged screen surface or a woven screen surface.
- the sieve surface of the large-grain mesh belt sieve or the medium-grain mesh belt sieve of the invention can be adopted as a hinged tab structure, and for the easy blockage material, the sieve material can be effectively prevented from being repeatedly sieved.
- the physical grading method of the present invention provides a material spiral working environment.
- the motion curve is a non-standard spiral curve according to the particle size and shape of the material, it is effective in a rolling environment in which the circular motion and the linear motion are consistent.
- Screening firstly start the driving mechanism of the mesh belt screen and the flat return mechanism of the screen box flat return movement, form a compound movement mode of the flat back movement and the straight belt movement, and put the mixture material into the small particle cleaning sieve, through the net Rolling with the bumps and flat back movements during the straight-through process, the small particulate matter under the sieve is introduced into the collection bin; the sieve residue material including the large particles enters the large-grain mesh belt sieve or the sieve of the medium-grain mesh sieve through the guide plate The sieve residue material is collected in the sieve surface of the large particle mesh belt sieve or the medium particle mesh belt sieve by the bumping and the back movement in the straight process of the mesh belt, and the obtained sieve is collected; The remaining large particles are introduced into
- Another working mode of the invention is that the driving mechanism of the mesh belt screening operation and the flat returning mechanism of the screen box moving back are firstly started, and a compound movement mode of the flat back movement and the straight belt movement of the mesh belt is formed, and the mixture material is put into the large In the granule or medium granule mesh screen, the rolling of the bumps and the flat back movement during the straight process of the mesh belt, the large particles of the sieved debris are introduced into the collection bin, and the small particles under the sieve enter the small particle cleaning sieve, and pass through the net. Rolling with the bumps and peace back movements during the straight line, complete the grading.
- Figure 1 is a schematic view of the structure of the product.
- Figure 2 is a left side view of Figure 1.
- Figure 3 is a schematic view showing the internal structure of the screen box with the sieve screen of the present invention (screening according to the particle size of the material from large to small).
- Figure 4 is a schematic view showing the internal structure of the screen box of the present invention (screening large particles first, and then sieving small particles).
- Figure 5 is a schematic view showing the internal structure of another screen box in which the large particles are sieved and then the small particles are sieved (the material does not pass through the lower sieve surface of the large particle sieve).
- Figure 6 is a left side view of Figure 5.
- Figure 7 is a schematic view of the A link of Figure 5;
- Figure 8 is a schematic view showing the internal structure of another screen box (first screening small particles and then sieving large medium particles).
- Figure 9 is a schematic view of the structure of a small miscellaneous slide with a screw discharge mechanism (which is a plan view of Figure 8).
- Figure 10 is a schematic view showing the structure of the double-ring silk small particle mesh belt screen surface of the present invention.
- Figure 11 is a left side view of Figure 10 (schematic diagram of the mesh belt).
- Figure 12 is a schematic view showing the structure of a sieve mesh screen in a multi-turn double loop yarn of the present invention.
- Figure 13 is an enlarged view of a portion B of Figure 12 .
- Figure 14 is a schematic view showing the structure of the large particle sieve screen of the present invention.
- Figure 15 is a schematic view of the chain structure with L-shaped ribs.
- Figure 16 is a schematic illustration of a mesh belt with vertical ribs on the chain.
- Figure 17 is a schematic view of the structure of the flat return mechanism (the flat return wheel has a biased hole).
- Figure 18 is a schematic view of the anti-running material structure of the screen box with the baffle plate.
- Figure 19 is a schematic view showing the structure of a punched double ring sheet.
- a mesh belt screen for industrial and mining comprising: a screen frame, wherein the screen frame 1 is connected to the screen box by a boom 2 or a rocker or a pendulum rod, wherein the screen box is provided with a set of mesh belt screens 3, which are flat.
- the return mechanism 4 is installed between the mesh belt screens, and the mesh belt screen surface comprises a large particle mesh belt screen surface 31 of 100-625 holes per square meter, or a medium particle sieve of 626-4300 holes per square meter.
- the discharge slide plate is a set of oppositely disposed inclined plates with an inclination angle of 3-10 degrees, and the concave bottom surface formed by the inclined plate is provided with a small particle discharge mechanism 7, and the small particle net located at the bottom layer
- the discharge slide with the screen is the collection plate 8.
- the industrial and mining mesh belt screen of the embodiment 1 or 2 the mesh belt screen is arranged in parallel with a chain 9 on both sides of the screen surface, between the chain is equipped with a screen surface 10 composed of sieve sheets;
- the small particle mesh screen has a screen inclination angle of 0-5 degrees, and the large particle mesh belt sieve or the medium particle mesh belt sieve has a sieve surface inclination angle of 0-4 degrees, and the small particle mesh belt has a sieve angle on the chain.
- a baffle 12 is connected between the chain and the screen box, or the chain on both sides has a rib perpendicular to the screen surface 13.
- the screen surface is formed by a hinged double loop wire 15 which is provided with a nut 16 at its end, in particular a tubular nut 17 at the end of said transverse shaft having a diameter of less than 4 mm.
- the upper and lower screen faces of the screen are provided with a guide swash plate 18, the double loop wire is a punched double ring piece 21, and the small miscellaneous discharge mechanism is a screw discharge mechanism 71.
- the screen surface of the large particle mesh belt sieve or the medium particle mesh belt sieve is an hinged tab structure 20 to prevent the sieve material from being repeatedly sieved.
- the driving mechanism 41 for the mesh belt screening operation and the flat return mechanism 4 of the screen box moving back to form a flat return movement and The composite movement mode of the net belt straight movement, the solid particle mixture material is put into the small particle cleaning sieve, and the small particles are sieved into the collection bin through the rolling of the bumps and the flat back movement during the straight process of the mesh belt;
- a sieve material comprising large particles, which enters the sieve surface of the large particle mesh belt sieve or the medium particle mesh belt sieve through the guide plate, and the sieve residue material is in the large particle mesh belt sieve or the medium particle mesh
- the sieved screen surface is collected by the rolling of the bumps and the flat back movement during the straight running of the mesh belt, and the obtained sieved objects are collected;
- the large particles left by the sieve are introduced into the collector to complete the preliminary cleaning and grading work.
- the driving mechanism 41 for the mesh belt screening operation and the flat return mechanism 4 of the screen box moving back to form a flat return movement and The composite movement mode of the net belt straight movement, the mixture material is put into the large particle or the medium particle mesh belt sieve, the rolling of the bumps and the flat back movement in the straight process of the mesh belt, the large particles of the sieve are sieved, and the collection bin is introduced into the collection bin.
- the small particles enter the small particle cleaning sieve, and the grading is completed by the rolling of the bumps and the flat back movement during the straight process.
- a mesh belt screen according to any one of embodiments 1 to 6 is used for sieving and grading of granular materials in industrial and mining industries, and the mesh belt screen is sifted in a spiral motion environment in which a combination of flat back motion and linear motion is combined. Net mesh screen.
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- Combined Means For Separation Of Solids (AREA)
Abstract
一种工业和采矿用网带筛,包括:筛架(1),筛架通过吊杆(2)或者摇杆或者摆杆连接筛箱,筛箱中装有一组网带筛(3),平回机构(4)安装在网带筛(3)之间,网带筛面包括大颗粒网带筛面(31),或者中颗粒筛面(32),或者小颗粒网带筛面(33),或者两种或者三种所述的网带筛面的组合,所述的网带筛面连接驱动机构(41),位于底层以外的所述的小颗粒网带筛上下筛面间装有倾斜的出料滑板(5)。采用该网带筛解决了传统的筛子赋予被筛分物体的动能小或者直线运动,处理过程中滚动性能差,容易堵塞,筛理能力和筛分效果很难提高的问题。
Description
本发明提供一种物理筛分机械,特别是一种赋予螺旋运动进行筛分的机械,该机机械在工业颗粒物料或者采矿业进行筛理的用途,以及利用该机械进行颗粒物料物理分级方法。
工矿企业常用的筛分机械包括惯性振动筛和共振筛两大类。矿用的振动筛是利用振子激振所产生的往复旋型振动而工作的。振子的上旋转重锤使筛面产生平面回旋振动,而下旋转重锤则使筛面产生锥面回转振动,其联合作用的效果则使筛面产生复旋型振动。其振动轨迹是一复杂的空间曲线。该曲线在水平面投影为一圆形,而在垂直面上的投影为一椭圆形。调节上、下旋转重锤的激振力,可以改变振幅。而调节上、下重锤的空间相位角,则可以改变筛面运动轨迹的曲线形状并改变筛面上物料的运动轨迹。大多数是用于泥浆固相处理的一种过滤性的机械分离设备,筛网和振子组成。筛网的粗细以目表示,一般50目以下的为粗筛网,80目以上的为细筛网。振子是一个偏心轮,在电动机带动下旋转,使筛架发生振动。由于筛架的振动,泥浆流到筛面上时较粗的固体颗粒就留在筛面上,并沿斜面从一端排出,较细的固相颗粒和泥浆液体一起通过筛孔流到泥浆池去。
物理筛分过程是将颗粒大小不同的碎散物料群,多次通过均匀布孔的单层或多层筛面,分成若干不同级别的过程,称为筛分。大于筛孔的颗粒留在筛面上,称为该筛面的筛余物,小于筛孔的颗粒透过筛孔,称为该筛面的筛下物。实际的筛分过程是:大量粒度大小不同、粗细混杂的碎散物料进入筛面后,只有一部分颗粒与筛面接触,由于筛箱的振动,筛上物料层被松散,使大颗粒本来就存在的间隙被进一步扩大,小颗粒乘机穿过间隙,转移到下层或运输机上。由于小颗粒间隙小,大颗粒并不能穿过,于是原来杂乱无章排列的颗粒群发生了分离,即按颗粒大小进行了分层,形成了小颗粒在下,粗颗粒居上的排列规则。到达筛面的细颗粒,小于筛孔者透筛,最终实现了粗、细粒分离,完成筛分过程。
然而,充分的分离是没有的,在筛分时,一般都有一部分筛下物留在筛余物中。细粒透筛时,虽然颗粒都小于筛孔,但它们透筛的难易程度不同,物料和筛孔尺寸相近的颗粒,透筛就较难,透过筛面下层的颗粒间隙就更难。
共振筛则是一种筛面的振动频率与筛面(包含装载的物料)的固有振动频率一致的 振动筛。在理论上,仅给予足以克服弹性体(弹簧或橡胶)内部阻力的能量即能使振动持续下去,因而这种筛除具有一般振动筛所具有的一系列优点外,还具有动力消耗少的突出优点。广泛应用于筛分各种粒度的物料。与振动筛不同点是:振动筛是在远离共振区的超共振状态下工作;而共振筛是在接近共振区的条件下工作,即筛分机的工作频率接近其本身的自振频率。利用这个特点,就可以用较小的汲振力来驱动较大面积的筛箱,所以共振筛的动力消耗小,而生产能力大。
传统的筛子赋予被筛分物体的动能小或者直线运动,处理过程中滚动性能差,容易堵塞,筛理能力和筛分效果很难提高。
发明目的:
本发明的目的是提供一种螺旋筛理的网带筛及该网带筛的使用方法和在工业、采矿业的用途,本发明使被筛分物体螺旋运动,显著提升筛理质量,筛分能力提升显著。
本发明的目的是这样实现的:
工业和采矿用网带筛,其组成包括:筛架,所述的筛架通过吊杆或者摇杆或者摆杆连接筛箱,所述的筛箱中装有一组网带筛,平回机构安装在所述的网带筛之间,所述的网带筛面包括每平方米100-625孔的大颗粒筛面或者每平方米626-4300孔的中颗粒筛面或者每平方米4301孔-25万孔的小颗粒筛面,或者两种或者三种所述的筛面的组合,所述的网带筛面连接驱动机构,位于底层以外的所述的小颗粒网带筛上下筛面间装有倾斜的出料滑板。
所述的工业和采矿用网带筛,所述的大颗粒网带筛或者中颗粒网带筛位于所述的小颗粒网带筛上方时,所述的大中颗粒网带筛与小颗粒网带筛之间装有导料板,所述的出料滑板为一组相向布置的斜板,倾斜角度为3-10度,所述的斜板形成的凹面底部装有小颗粒出料机构,位于底层的所述的小颗粒网带筛的出料滑板为收集板。
所述的工业和采矿用网带筛,所述的网带筛的筛面两侧平行布置有链条,所述的链条之间装有由筛片组成的筛面;所述的小颗粒网带筛筛面倾角0-5度,所述的大颗粒网带筛或者中颗粒网带筛的筛面倾角为0-4度,所述的小颗粒网带筛链条上具有覆盖所述的链条的倒L形挡边,所述的链条和所述的筛箱之间连接有挡料板,或者两侧的所述的链条上具有与筛面垂直的挡边。
所述的工业和采矿用网带筛,所述的筛面的横轴穿过所述的链条或者替代所述的链条的销轴,所述的横轴之间通过铰接双环丝构成筛面,所述的横轴端部装有螺帽,特别是在直径小于4mm的所述的横轴端部装有管型螺帽。
所述的工业和采矿用网带筛,所述的筛面为钢筋绞花筛面、冲孔筛面或者铰接筛面 或者编织筛面,所述的大中颗粒网带筛的上下筛面中装有导流斜板,所述的双环丝为冲孔双环片,所述的小杂出料机构为螺旋出料机构。
所述的工业和采矿用网带筛,所述的大颗粒网带筛或者中颗粒网带筛的筛面上下层筛面间具有导出板,或者所述的大颗粒网带筛或者中颗粒网带筛的筛面为铰接垂片结构,防止筛下物重复筛理。
利用所述的工业和采矿用网带筛进行物理分级的方法,启动网带筛工作的驱动机构和筛箱平回运动的平回机构,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛下小颗粒物质导入收集仓;
包括大颗粒的筛余物料,经导料板进入所述的大颗粒网带筛或者中颗粒网带筛的筛面,所述的筛余物料在所述的大颗粒网带筛或者中颗粒网带筛的筛面中通过网带直行过程中的颠簸和平回运动的滚动,将获得的筛下物收集起来;
筛余的大颗粒物,导入收集器,完成初步的清理分级工作。
利用所述的工业和采矿用网带筛进行物理分级的方法,其特征是:启动网带筛工作的驱动机构和筛箱平回运动的平回机构,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到大颗粒或者中颗粒网带筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛余的大颗粒物,导入收集仓,筛下的小颗粒物进入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,完成分级。
一种粮食行业使用的网带筛用于工业和采矿业的颗粒物料筛分分级,所述的网带筛是平回运动和直线运动组合的螺旋运动下进行筛理的网带筛。
发明效果:
物理筛理分级是工业精细化发展的必然产物,是社会向前发展的微小的细胞的组成体,分级过程的质量,间接、或直接的影响社会的发展。在很多行业,例如煤矿、铁矿、盐矿,以及工业中的化学工业、食品和调味品业、制药、造纸、化肥工业,以及冶金、煤炭、橡胶、石油、汽车、陶瓷、玻璃等工业中固体颗粒、粉末的分级处理。
传统的振动筛是利用振子激振所产生的往复旋型振动而工作的。振子的上旋转重锤使筛面产生平面回旋振动,而下旋转重锤则使筛面产生锥面回转振动,其联合作用的效果则使筛面产生复旋型振动。其振动轨迹在水平面投影为一圆形,而在垂直面上的投影为一椭圆形。调节上、下旋转重锤的激振力,可以改变振幅。而调节上、下重锤的空间相位角,则可以改变筛面运动轨迹的曲线形状并改变筛面上物料的运动轨迹。对于干物料筛分大多 可以满足一般需求。对于水分高,有粘附物料,工作时振动使物料更紧实的粘附于筛面,造成物料拥堵或者被迫停机。由于工作原理限制,该机型耗能相对较高。
振动筛中,直线振动筛较圆振筛生产效率高、分级效果好。在工作过程中,振动筛的动态性能直接影响筛分效率和使用寿命。振动筛是利用振动电机激振作为振动源,使物料在筛网上抖动并被抛起,同时向前作跳跃式的直线运动。运动受力方向单一,堵塞无法自清,特别适用于粘着性物品时,所有的优点几乎都被巨大的能耗和容易堵塞无法连续生产的致命弱点所抹煞。
本发明采用平回的运动机构,带动物料做圆运动的同时,网带在直线运动中带动物料产生位移,最终物料轨迹在水平投影是带锯齿的螺旋状运动,垂直投影面是往复滚动。在使得不同粒径的物料,由于被赋予动能的大小差异,产生高度上的分级,小于筛孔的物料被筛下,随着网带的前行,在长途的螺旋运动中前进的物料,最终的彻底的清理分级。
本发明实施中,所述的大颗粒网带筛或者中颗粒网带筛位于所述的小颗粒网带筛上方时,所述的大中颗粒网带筛与小颗粒网带筛之间装有导料板,所述的出料滑板为一组相向布置的斜板,这样多组筛面并联排列,通过某一级筛面的的物料能被及时收集和分离,一套平回机构,可以同时完成多种粒径的筛分。
本发明的网带筛的筛面两侧平行布置有链条,所述的链条之间装有由筛片组成的筛面;链传动传动运动稳定,承载能力强,并且,所述的小颗粒网带筛筛面倾角0-5度,所述的大颗粒网带筛或者中颗粒网带筛的筛面倾角为0-4度,是物料处理效果最佳。
本发明的小颗粒网带筛链条上具有覆盖所述的链条的倒L形挡边,所述的链条和所述的筛箱之间连接有挡料板,或者两侧的所述的链条上具有与筛面垂直的挡边。可以有效地保证螺旋运动的物料不会影响链条运行,防止物料外溢。
本发明的网带筛面的横轴穿过所述的链条或者替代所述的链条的销轴,连接非常稳固,所述的横轴之间通过铰接双环丝构成筛面,形成一种新的筛面结构,转动性能有显著提高,使用寿命提升数倍。在所述的横轴端部装有螺帽,特别是在直径小于4mm的所述的横轴端部装有管型螺帽,便于调整双环丝之间的距离,从而完成筛网目数的微调。本发明的筛面也可以采用通常的钢筋绞花筛面、冲孔筛面、铰接筛面或者编织筛面。
本发明的大颗粒网带筛或者中颗粒网带筛的筛面可以采用为铰接垂片结构,对于易堵物料,可以有效防止筛下物重复筛理。
本发明的物理分级的方法,是提供一个物料螺旋工作环境,虽然根据物料的粒径、形状不同,运动曲线是非标准螺旋曲线,但是还是在圆运动和直线运动符合的滚动的环境 下进行了有效筛理,首先启动网带筛工作的驱动机构和筛箱平回运动的平回机构,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛下小颗粒物质导入收集仓;包括大颗粒的筛余物料,经导料板进入所述的大颗粒网带筛或者中颗粒网带筛的筛面,所述的筛余物料在所述的大颗粒网带筛或者中颗粒网带筛的筛面中通过网带直行过程中的颠簸和平回运动的滚动,将获得的筛下收集起来;筛余的大颗粒杂物,导入收集器,完成初步的清理分级工作。
本发明的另一种工作方式是,首先启动网带筛工作的驱动机构和筛箱平回运动的平回机构,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到大颗粒或者中颗粒网带筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛余的大颗粒杂物,导入收集仓,筛下的小颗粒物进入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,完成分级。
附图1是本产品的结构示意图。
附图2是附图1的左视图。
附图3是本发明带有垂片筛面的筛箱内部结构示意图(按物料粒度从大到小依次筛分)。
附图4是本发明筛箱内部结构示意图(先筛除大颗粒,然后筛分中小颗粒)。
附图5是本发明先筛除大颗粒然后筛分中小颗粒的另一种筛箱内部结构示意图(物料不穿过大颗粒筛下层筛面)。
附图6是附图5的左视图。
附图7是附图5的A部链节示意图。
附图8是另一种筛箱内部结构示意图(先筛除小颗粒,然后筛分大中颗粒)。
附图9是带有螺旋出料机构的小杂滑板结构示意图(是附图8俯视方向)。
附图10是本发明双环丝小颗粒网带筛筛面结构示意图。
附图11是附图10的左视图(网带工作示意图)。
附图12是本发明多圈双环丝中颗粒网带筛筛面结构示意图。
附图13是附图12的B部放大图。
附图14是本发明大颗粒筛筛面结构示意图。
附图15是带有L形挡边的链条结构示意图。
附图16是链条上带有垂直挡边的网带示意图。
附图17是平回机构的一种结构示意图(平回轮带有偏重孔)。
附图18是筛箱带有挡料板的防跑料结构示意图。
附图19是冲孔双环片结构示意图。
实施例1:
工业和采矿用网带筛,其组成包括:筛架,所述的筛架1通过吊杆2或者摇杆或者摆杆连接筛箱,所述的筛箱中装有一组网带筛3,平回机构4安装在所述的网带筛之间,所述的网带筛面包括每平方米100-625孔的大颗粒网带筛面31,或者每平方米626-4300孔的中颗粒筛面32,或者每平方米4301孔-25万孔的小颗粒网带筛面33,或者两种或者三种所述的网带筛面的组合,所述的网带筛面连接驱动机构41,一起在筛箱整体圆运动的条件下,完成直线运动。位于底层以外的所述的小颗粒网带筛上下筛面间装有倾斜的出料滑板5。
实施例2:
实施例1所述的工业和采矿用网带筛,所述的大颗粒网带筛或者中颗粒网带筛位于所述的小颗粒网带筛上方时,所述的小颗粒网带筛上方装有导料板6,同理,为了下一步的筛理长度更佳,在所述的大颗粒网带筛或者中颗粒网带筛之间也装有导料板6。
所述的出料滑板为一组相向布置的斜板,倾斜角度为3-10度,所述的斜板形成的凹面底部装有小颗粒出料机构7,位于底层的所述的小颗粒网带筛的出料滑板为收集板8。
实施例3:
实施例1或2所述的工业和采矿用网带筛,所述的网带筛的筛面两侧平行布置有链条9,所述的链条之间装有由筛片组成的筛面10;所述的小颗粒网带筛筛面倾角0-5度,所述的大颗粒网带筛或者中颗粒网带筛的筛面倾角为0-4度,所述的小颗粒网带筛链条上具有覆盖所述的链条的倒L形挡边11,所述的链条和所述的筛箱之间连接有挡料板12,或者两侧的所述的链条上具有与筛面垂直的挡边13。
实施例4:
实施例1或2或3所述的工业和采矿用网带筛,所述的筛面的横轴14穿过所述的链条或者替代所述的链条的销轴,所述的横轴之间通过铰接双环丝15构成筛面,所述的横轴端部装有螺帽16,特别是在直径小于4mm的所述的横轴端部装有管型螺帽17。
实施例5:
实施例1或2或3所述的工业和采矿用网带筛,所述的筛面为钢筋绞花筛面、冲孔筛面或者铰接筛面或者编织筛面,所述的大中颗粒网带筛的上下筛面中装有导流斜板18,所述的 双环丝为冲孔双环片21,所述的小杂出料机构为螺旋出料机构71。
实施例6:
实施例1或2或3或4或5所述的工业和采矿用网带筛,所述的大颗粒网带筛或者中颗粒网带筛的筛面上下层筛面间具有导出板19,或者所述的大颗粒网带筛或者中颗粒网带筛的筛面为铰接垂片结构20,防止筛下物重复筛理。
实施例7:
利用实施例1-6之一所述的工业和采矿用网带筛进行物理分级的方法,启动网带筛工作的驱动机构41和筛箱平回运动的平回机构4,形成平回运动和网带直行运动的复合运动模式,将固体的颗粒混合物物料投入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛下小颗粒物质导入收集仓;
包括大颗粒的筛余物料,经导料板进入所述的大颗粒网带筛或者中颗粒网带筛的筛面,所述的筛余物料在所述的大颗粒网带筛或者中颗粒网带筛的筛面中通过网带直行过程中的颠簸和平回运动的滚动,将获得的筛下物收集起来;
筛余的大颗粒物,导入收集器,完成初步的清理分级工作。
实施例8:
利用实施例1-6之一所述的工业和采矿用网带筛进行物理分级的方法,启动网带筛工作的驱动机构41和筛箱平回运动的平回机构4,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到大颗粒或者中颗粒网带筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛余的大颗粒物,导入收集仓,筛下的小颗粒物进入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,完成分级。
实施例9:
一种实施例1-6之一所述的网带筛用于工业和采矿业的颗粒物料筛分分级,所述的网带筛是平回运动和直线运动组合的螺旋运动环境下进行筛理的网带筛。
Claims (9)
- 一种工业和采矿用网带筛,其组成包括:筛架,所述的筛架通过吊杆或者摇杆或者摆杆连接筛箱,其特征是:所述的筛箱中装有一组网带筛,平回机构安装在所述的网带筛之间,所述的网带筛面包括每平方米100-625孔的大颗粒筛面或者每平方米626-4300孔的中颗粒筛面或者每平方米4301孔-25万孔的小颗粒筛面,或者两种或者三种所述的筛面的组合,所述的网带筛面连接驱动机构,位于底层以外的所述的小颗粒网带筛上下筛面间装有倾斜的出料滑板。
- 根据权利要求1所述的工业和采矿用网带筛,其特征是:所述的大颗粒网带筛或者中颗粒网带筛位于所述的小颗粒网带筛上方时,所述的网带筛之间装有导料板,所述的出料滑板为一组相向布置的斜板,倾斜角度为3-10度,所述的斜板形成的凹面底部装有小颗粒出料机构,位于底层的所述的小颗粒网带筛的出料滑板为收集板。
- 根据权利要求1或2所述的工业和采矿用网带筛,其特征是:所述的网带筛的筛面两侧平行布置有链条,所述的链条之间装有由筛片组成的筛面;所述的小颗粒网带筛筛面倾角0-5度,所述的大颗粒网带筛或者中颗粒网带筛的筛面倾角为0-4度,所述的小颗粒网带筛链条上具有覆盖所述的链条的倒L形挡边,所述的链条和所述的筛箱之间连接有挡料板,或者两侧的所述的链条上具有与筛面垂直的挡边。
- 根据权利要求1或2或3所述的工业和采矿用网带筛,其特征是:所述的筛面的横轴穿过所述的链条或者替代所述的链条的销轴,所述的横轴之间通过铰接双环丝构成筛面,所述的横轴端部装有螺帽,特别是在直径小于4mm的所述的横轴端部装有管型螺帽。
- 根据权利要求1或2或3所述的工业和采矿用网带筛,其特征是:所述的筛面为钢筋绞花筛面、冲孔筛面或者铰接筛面或者编织筛面,所述的大中颗粒网带筛的上下筛面中装有导流斜板,所述的双环丝为冲孔双环片,所述的小杂出料机构为螺旋出料机构。
- 根据权利要求1或2或3或4或5所述的工业和采矿用网带筛,其特征是:所述的大颗粒网带筛或者中颗粒网带筛的筛面上下层筛面间具有导出板,或者所述的大颗粒网带筛或者中颗粒网带筛的筛面为铰接垂片结构,防止筛下物重复筛理。
- 一种利用权利要求1-8之一所述的工业和采矿用网带筛进行物理分级的方法,其特征是:启动网带筛工作的驱动机构和筛箱平回运动的平回机构,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛下小颗粒物质导入收集仓;包括大颗粒的筛余物料,经导料板进入所述的大颗粒网带筛或者中颗粒网带筛的筛面,所 述的筛余物料在所述的大颗粒网带筛或者中颗粒网带筛的筛面中通过网带直行过程中的颠簸和平回运动的滚动,将获得的筛下物收集起来;筛余的大颗粒物,导入收集器,完成初步的清理分级工作。
- 一种利用权利要求1-6之一所述的工业和采矿用网带筛进行物理分级的方法,其特征是:启动网带筛工作的驱动机构和筛箱平回运动的平回机构,形成平回运动和网带直行运动的复合运动模式,将混合物物料投入到大颗粒或者中颗粒网带筛中,通过网带直行过程中的颠簸和平回运动的滚动,筛余的大颗粒物,导入收集仓,筛下的小颗粒物进入到小颗粒清理筛中,通过网带直行过程中的颠簸和平回运动的滚动,完成分级。
- 一种权利要求1-6之一所述的网带筛用于工业和采矿业的颗粒物料筛分分级,其特征是:所述的网带筛是平回运动和直线运动组合的螺旋运动下进行筛理的网带筛。
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2017
- 2017-11-08 CN CN201711092183.4A patent/CN107716262A/zh active Pending
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- 2018-04-09 CN CN201820495613.0U patent/CN208583594U/zh not_active Expired - Fee Related
- 2018-04-09 CN CN201820496178.3U patent/CN208373576U/zh not_active Expired - Fee Related
- 2018-04-09 CN CN201820496183.4U patent/CN208824949U/zh not_active Expired - Fee Related
- 2018-04-09 CN CN201810312802.4A patent/CN108372104A/zh active Pending
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CN107716262A (zh) | 2018-02-23 |
WO2019091331A1 (zh) | 2019-05-16 |
CN108311390A (zh) | 2018-07-24 |
CN108311389A (zh) | 2018-07-24 |
CN208824949U (zh) | 2019-05-07 |
CN208583594U (zh) | 2019-03-08 |
CN108212770A (zh) | 2018-06-29 |
WO2019091334A1 (zh) | 2019-05-16 |
CN208427375U (zh) | 2019-01-25 |
CN108372104A (zh) | 2018-08-07 |
WO2019091335A1 (zh) | 2019-05-16 |
CN208373576U (zh) | 2019-01-15 |
CN109290191A (zh) | 2019-02-01 |
CN109225797A (zh) | 2019-01-18 |
WO2019091332A1 (zh) | 2019-05-16 |
WO2019091330A1 (zh) | 2019-05-16 |
CN109290190A (zh) | 2019-02-01 |
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