CN113828508A - Device for prolonging service life of screen of vibrating screen - Google Patents
Device for prolonging service life of screen of vibrating screen Download PDFInfo
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- CN113828508A CN113828508A CN202111030566.5A CN202111030566A CN113828508A CN 113828508 A CN113828508 A CN 113828508A CN 202111030566 A CN202111030566 A CN 202111030566A CN 113828508 A CN113828508 A CN 113828508A
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- screen
- blanking pipe
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- long life
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- 239000000463 material Substances 0.000 claims abstract description 63
- 238000002955 isolation Methods 0.000 claims abstract description 34
- 239000004744 fabric Substances 0.000 claims abstract description 24
- 238000012216 screening Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 2
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 23
- 238000003466 welding Methods 0.000 description 13
- 230000008439 repair process Effects 0.000 description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 9
- 235000011941 Tilia x europaea Nutrition 0.000 description 9
- 239000004571 lime Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
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
-
- 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
- B07B1/48—Stretching devices for screens
- B07B1/49—Stretching devices for screens stretching more than one screen or screen section by the same or different stretching means
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The application protects a long-life shale shaker screen cloth device. The isolation buffer component is arranged on the blanking contact surface of the screen and the blanking pipe and is used for storing materials all the time, and the materials to be screened directly collide with the materials stored in the isolation buffer component after falling from the blanking pipe, so that the materials falling from the pipe orifice of the blanking pipe are prevented from directly impacting the screen, the noise is reduced, and the environment is protected; in addition, the speed reduction part is arranged at the middle lower part of the blanking pipe, so that the falling speed of the material from the outlet of the blanking pipe is reduced to 20-40% of the inlet speed, and the impact kinetic energy of the material on the screen is reduced. And the material after being buffered by the isolation buffer component can be decelerated for the second time, the speed of the material is reduced to 40% -60% of the speed of the outlet of the blanking pipe, and the kinetic energy of the material for directly impacting the screen is reduced. By adopting the technical scheme, the maintenance time of the screen can be reduced, the normal production is stabilized, and the operation rate of the kiln is improved by 1-3%.
Description
Technical Field
The application belongs to the technical field of screening of metallurgical lime flux ores, and particularly relates to a technology for prolonging the service life of a screen of a vibrating screen of the metallurgical lime flux ores.
Background
In the metallurgy industry and the mine flux ore industry, in order to classify products and screen mud and broken stones, a water washing screening mode of a traditional cylindrical screen and a fixed grid screen is generally adopted. With the increasing protection of the country to the environment and the more and more strict environmental management and control, enterprises actively respond to the national call and strictly execute national policies. The method has the advantages that a plurality of enterprises carry out 'solid waste does not leave factory', zero discharge is comprehensively implemented, synergistic benefit-creating space is developed, and the screening capacity of the traditional washing screening devices such as the cylindrical screen, the fixed grid screen and the like is low, so that the waste water amount cannot be effectively reduced; the water content of the solid waste cannot be reduced, and the utilization speed of the solid waste is improved; the demand for fast paced production cannot be met. The vibrating screen has strong processing capacity, strong shock excitation capacity and high screening efficiency, and the screening device of the flux ore in the metallurgical industry commonly adopts the vibrating screen.
When the vibrating screen works, the two motors synchronously rotate in reverse directions to enable the vibration exciters to generate reverse exciting force, the screen body is forced to drive the screen to move longitudinally, so that the exciting force of the flux ore on the screen is periodically thrown forward in a shooting process, the working part of the vibrating screen is fixed, and the flux ore slides along the working surface to enable the flux ore to be screened, so that screening operation is completed.
However, the screens of the prior art, after breakage, lead to the following technical drawbacks: 1. the operation space is narrow during local repair welding, the intensity is weakened after repair welding, especially the service life of the screen mesh of a blanking point is shorter, and the labor intensity is high during frequent repair welding. 2. When the screen cloth is integrally replaced, a crane is needed to be used for opening the top baffle and the like, the screen cloth is integrally replaced, time and labor are consumed during replacement operation, and labor intensity is high.
Aiming at the technical defects and problems, at present, no complete and thorough solution is available in the field, only temporary repair welding measures are taken, the damaged screen mesh is repaired and welded by round steel, the strength is weakened after repair welding, the service life of the repair welded screen mesh can only reach 15-20 days, and the repair welding is frequent, so that the normal production is influenced.
Disclosure of Invention
To overcome the above-mentioned disadvantages of the prior art, the present invention provides an apparatus for extending the useful life of a shaker screen.
The application provides a long-life shale shaker screen cloth device, this screen cloth device contains unloading pipe, the screen cloth, screen cloth mounting bracket, this screen cloth is fixed on screen cloth mounting bracket for the screening is by the unloading pipe waiting to sieve the material that falls, its characterized in that, the position department of waiting to sieve the material impact on this screen cloth sets up one and keeps apart the buffer part, should keep apart the buffer part and can avoid waiting to sieve the material direct and screen cloth contact, and can be used for storing the part and wait to sieve the material.
As an alternative, the isolation buffer part is composed of a bottom plate and four side vertical plates, and the height of at least one side vertical plate is lower than that of the other three side vertical plates.
Preferably, the height of the downstream vertical plate along the material to be screened in the flow direction of the screen is lower than that of the other three vertical plates.
As an optional scheme, when the axis of the blanking pipe and the longitudinal center line of the screen surface are on the same vertical plane, the heights of the vertical plates on the two sides of the material to be screened in the flow direction of the screen are consistent; when the axial line of the blanking pipe and the longitudinal central line of the screen surface are not on the same vertical plane, the height of the vertical plate of the blanking pipe pointing to one side is higher than that of the other side.
As an optional scheme, the four vertical plates of the isolation buffer component are all rigidly connected with the bottom plate, and the isolation buffer component is integrally connected with the screen mounting frame through the bottom plate.
As an alternative, the connection of the base plate to the mounting frame of the screen comprises a plurality of different connections, preferably both rigid and secure connections, more preferably both welded and bolted connections.
As an optional scheme, the middle lower bottom of the inner pipe of the blanking pipe is provided with a speed reducing part for materials to be screened.
Preferably, the decelerating component is a baffle, the number of baffles is one or more, and the baffles are preferably reinforced by ribs.
As an optional scheme, the distance L1 between the baffles is 150-250mm, the distance L2 between the baffle at the lowest end and the discharge port of the blanking pipe is 100-200mm, and L2 is smaller than L1.
Alternatively, the longitudinal centerline of the bottom plate plane of the isolation cushioning member coincides with the longitudinal centerline of the screen surface, and the transverse centerline of the bottom plate plane of the isolation cushioning member is disposed 1/4 from top to bottom of the screen surface.
The technical effects of the application include:
according to the scheme, the isolation buffer component is arranged on the blanking contact surface of the screen and the blanking pipe, the isolation buffer component is used for storing materials all the time, the materials to be screened directly collide with the materials stored in the isolation buffer component after falling from the blanking pipe, the situation that the materials falling from the pipe orifice of the blanking pipe directly impact the screen is avoided, the noise is reduced, the environment is protected, and the noise is reduced by 30-50 decibels; in addition, the speed reducing part is arranged at the middle lower part of the discharging pipe, the falling speed of the material from the outlet of the discharging pipe is reduced through reasonable configuration of the speed reducing part, the falling speed is reduced to 20% -40% of the inlet speed, and the impact kinetic energy of the material on the screen is reduced. And the material after being buffered by the isolation buffer component can be decelerated for the second time to be 40% -60% of the outlet speed of the blanking pipe, so that the kinetic energy of the material for directly impacting the screen is reduced. By adopting the technical scheme, the maintenance time of the screen can be reduced, the normal production is stabilized, and the operation rate of the kiln is improved by 1-3%.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1: a prior art shaker right view;
FIG. 2: a top view of a prior art shaker;
FIG. 3: the front cross section of the blanking pipe baffle plate is provided;
FIG. 4: the application discloses a partial enlarged sectional view of the front side of a blanking pipe baffle installation;
FIG. 5: the application isolates the front section view of the buffer member;
FIG. 6: left side cross-sectional view of isolation buffer component
FIG. 7: top plan view of the vertical screening surface of the present application.
Reference numerals: 1-top baffle support; 2-a top baffle; 3-material preparation; 4-a blanking pipe; 5-vibrating a screen discharging barrel; 6-screen mounting rack; 7-a screen mesh; 8-a blanking point area; 9-a baffle plate; 10-rib plate; 11-reduction part enlarged view; 12-blanking tube bottom plate; 13-left vertical plate; 14-rear vertical plate; 15-a right vertical plate; 16-front vertical plate; 17-a base plate; 18-bolt; 19-transverse line 1/4 from top to bottom of screen surface; 20-screen surface longitudinal centerline.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship as shown in the drawings, or as used in the application, which is intended to be generally placed in use, and are used for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "perpendicular" and "parallel" do not require absolute perpendicularity or parallelism between the components, but may be slightly inclined.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The term "A communicates with B" can be that A communicates with B directly or A communicates with B through an intermediate medium. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1 and 2, the vibrating screen is a conventional structure of a vibrating screen in the prior art, and the structure comprises a feeding pipe 4, a screen mounting frame 6, a screen 7 mounted on the screen mounting frame 6, and further comprises a top baffle 2 and a top baffle support 1, and the working principle of the vibrating screen is that a material 3 to be screened falls from the feeding pipe 4, and after contacting with the screen 7, the material 3 rolls along the downstream of the screen 7, and in the process, the material 3 with required size is screened out.
Taking the example of screening the metallurgical lime flux by the vibrating screen, the screening capacity is generally 85-325 t/h, the blanking speed of the flux ore from a conveying belt reaches 1.25m/s, and the impact force is further increased under the gravity acceleration after the flux ore passes through a blanking pipe, and the speed reaches 2.3-3 m/s. The screen mesh in the range of phi 400mm in the peripheral area of the blanking point of the blanking pipe is damaged. If flux ore is calculated according to the sieving quantity of 500 t/day, the service life of the common sieve is 1 month.
And after the screen cloth at the blanking point is damaged, the round steel is often adopted for repair welding to process, as shown in fig. 2, the round steel covers the original damaged position, but the strength of the screen cloth after repair welding is weakened, and the service life of the screen cloth is still not ideal.
In order to solve the technical problem, the inventor designs a vibrating screen device with long service life, which comprises a blanking pipe in a conventional screen device, a screen mounting rack and a screen, wherein the screen is fixed on the screen mounting rack and used for screening materials to be screened which fall from the blanking pipe.
The device in this embodiment promptly, keep apart the buffering part and not only play and separate material and screen cloth effect, can also save partial material, and through this kind of mode, when the material fell from the unloading pipe, it neither direct contact screen cloth nor direct contact keeps apart buffering part, but contact between material and the material, realized promptly "material beating material", through this kind of mode can effectually reduce the impact force that the material fell to the noise reduction. Especially for metallurgical lime flux ores.
Because the vibrating screen has the characteristics, the vibrating screen is particularly suitable for materials with clear edges and corners, sharp edges and irregularities. The main components of the metallurgical lime fluxant are calcium carbonate, magnesium carbonate and a small amount of impurities, the granularity is 40-80mm, and the molar hardness is 3. The metallurgical lime flux ore is a lump rock with the thickness of 40-80mm obtained by the breakage of a breaker, so the metallurgical lime flux ore has the characteristics of clear, sharp and irregular edges and corners. The vibrating screen is therefore particularly suitable for screening metallurgical lime flux ores.
It should be noted that the vibrating screen can also be used for screening other materials.
In order to realize the function of storing materials by the isolation buffer component, the isolation buffer component needs to be designed into a structure similar to a storage tank.
As an alternative embodiment, the isolation buffer part is composed of a bottom plate and four vertical plates. The bottom plate and the four vertical plates form a groove body for storing materials.
In order to enable the materials to smoothly enter a downstream screen mesh for screening after the materials fall down and collide with the materials stored in the isolation buffer component, one face plate is required to be lower than the other three face plates in the four face plates. Preferably, the height of the downstream vertical plate along the material to be screened in the flow direction of the screen is lower than the height of the other three vertical plates. By the design, materials enter the downstream screen from the downstream vertical plate to be screened.
It should be noted that the height of the downstream vertical plate does not need to be too large, and only needs to ensure that the material can be partially stored in the isolation buffer component.
When the axial line of the blanking pipe and the longitudinal central line of the screen mesh surface are on the same vertical plane, the materials in the blanking pipe will fall along the direction of the central line basically, and the materials falling to the two sides are less, so the vertical plates on the two sides are set to be consistent in height; when the axis of the blanking pipe and the longitudinal central line of the screen surface of the screen are not on the same vertical plane, the movement track of the material in the blanking pipe deviates to the vertical plate on one side, and the height of the vertical plate on the side is higher than that of the vertical plate on the other side, so that the material rebounds to the bottom plate after impacting the vertical plate on the side and collides with the stored material, and then enters the screening of the downstream screen.
As mentioned above, in the prior art, the strength of the round steel after repair welding is reduced, which easily causes frequent failure of the screen mesh. Therefore, in this embodiment, the four vertical plates of the isolation buffer component are all rigidly connected to the bottom plate, and the isolation buffer component is integrally connected to the screen mounting rack through the bottom plate.
The connection of the base plate to the mounting frame of the screen comprises simultaneously a plurality of different connections, preferably simultaneously a rigid connection and a fastening connection, more preferably a welded and bolted connection. Through two kinds of connected modes, further ensure the intensity and the rigidity of isolation buffer unit.
In particular, in order to further prolong the service life of the screen, a speed reducing part for the materials to be screened is arranged at the middle lower bottom part of the inner pipe of the blanking pipe. Through the speed reduction part, the blanking speed of the material can be effectively reduced, so that the loss of the screen is greatly reduced. Preferably, the decelerating component is a baffle, the number of baffles is one or more, and the baffles are preferably reinforced by ribs.
The distance L1 between the baffles is 150-250mm, the distance L2 between the baffle at the lowest end and the discharge port of the blanking pipe is 100-200mm, and L2 is smaller than L1. By controlling the position arrangement of the baffle, the function of the baffle can be fully exerted, and the falling speed of the material is reduced to the maximum extent.
The isolation buffer component is arranged at the middle upper part of the screen, specifically, the longitudinal center line of the bottom plate plane of the isolation buffer component is coincident with the longitudinal center line of the screen surface, and the transverse center line of the bottom plate plane of the isolation buffer component is arranged at 1/4 from top to bottom of the screen surface. In this way, the screening can be performed with a maximum of screen area.
Application example
In the application, metallurgical lime flux is used as a raw material for screening, and as shown in figures 3-7, a 3-stage speed reduction baffle 9 is arranged at the lower part of a blanking pipe 4. The baffle plates 9 are specifically installed as shown in fig. 3 and fig. 4, 3 baffle plates 9 are transversely vertical to the bottom plate of the blanking pipe, the distance between the baffle plates 9 is 200mm, and the distance between the lowest baffle plate 9 and the discharge port of the blanking pipe is 150 mm. FIG. 4 is a partial enlarged view of the speed reducing part, the baffle 9 and the blanking tube 4
An isolation buffer member is added to the screen cloth 7 and is installed in a blanking point area 8 shown in fig. 2. The isolation buffer component is composed of four side plates, namely a bottom plate 17, a front vertical plate 16, a rear vertical plate 14, a left vertical plate 13 and a right vertical plate 15, and the joint edges of the plates are fixed in a welding mode. The bottom plate 17 is 800mm long, 800mm wide and 20mm thick; the vertical plate 13 is 400mm high, 800mm wide and 20mm thick; the vertical plate 14 is 500mm high, 800mm wide and 20mm thick; the vertical plate 15 is 500mm high, 800mm wide and 20mm thick; the vertical plate 16 is 200mm high, 800mm wide and 20mm thick.
The isolation buffer component is installed on the vibrating screen in a fixing mode of adopting bolts and welding, the plane of a bottom plate 17 of the isolation buffer component is parallel to the screen surface, the longitudinal center of the plane of the bottom plate 17 is superposed with the longitudinal center line 20 of the screen surface, and the transverse center line of the plane of the bottom plate 17 is superposed with the transverse line 19 from top to bottom 1/4 of the screen surface. Holes of 4 bolts 18 with the distance of 600mm and phi 18mm are drilled at four corner positions in the plane of the bottom plate 17. And (3) drilling phi 18 holes at the same size position of the vibrating screen mounting frame 6, connecting the isolated part on the vibrating screen by using a bolt 18 of M16 to be fixed, and welding and reinforcing the bottom plate 17 of the isolated buffering component and the joint edge of the vibrating screen mounting frame 6. When the flux ore is initially fed to the screen, the flux ore directly impacts the bottom plates 17 and 7, then the flux ore is partially accumulated on the bottom plate 17, the flux ore is blocked by the baffle plates on the periphery of the bottom plate, the speed of the flux ore in the forward parabolic direction is reduced, and meanwhile the flux ore remains on the upper portion of the bottom plate, so that 'material feeding' is realized.
This technical scheme can realize: 1. the frequency of repair welding of the screen is reduced, the workload is reduced, and the service life of the vibrating screen is prolonged to 80-120% of the original service life. 2. The flux ore with the thickness of 40-80mm is reduced from entering a solid waste material field, and the resource waste is reduced. 3. Reduce the amount of mud broken stone entering the kiln, and stabilize the kiln condition and quality. 4. The cost of the screen is reduced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a long-life shale shaker screen cloth device, screen cloth device contains unloading pipe, screen cloth mounting bracket, the screen cloth is fixed on screen cloth mounting bracket for the screening is by the unloading pipe waiting to sieve the material that falls, its characterized in that the unloading point of screen cloth sets up an isolation buffer member, keep apart buffer member and can avoid waiting to sieve the material direct and screen cloth contact, and can be used for the storage part to wait to sieve the material.
2. The long life vibratory screen apparatus of claim 1 wherein said isolation cushioning members comprise a bottom panel and four side panels, one of said four side panels having a height less than the height of the other three side panels.
3. The long life vibratory screen apparatus of claim 2 wherein the downstream vertical panel in the direction of screen flow of material to be screened in the four vertical panels has a height less than the height of the other three vertical panels.
4. The long life vibratory screen apparatus of claim 3, wherein when the axis of the blanking tube is in the same vertical plane as the longitudinal centerline of the screen surface, the heights of the vertical plates on both sides of the material to be screened in the flow direction of the screen are the same; when the axial line of the blanking pipe and the longitudinal central line of the screen surface are not on the same vertical plane, the height of the vertical plate of the blanking pipe pointing to one side is higher than that of the other side.
5. The long life vibratory screen apparatus of claim 2 wherein said four side panels of said isolation cushioning members are rigidly connected to a base plate, said isolation cushioning members being integrally connected to said screen mounting bracket through said base plate.
6. A long life shaker screen assembly as claimed in claim 5, wherein the attachment of the base plate to the mounting frame of the screen comprises a plurality of different attachments simultaneously, preferably both rigid and secure attachments.
7. The long life vibratory screen apparatus of claim 1 wherein the bottom of the inner tube of the infeed tube is fitted with deceleration members for material to be screened.
8. A long life shaker screen assembly as claimed in claim 7, wherein said decelerating members are one or more baffles, preferably reinforced with ribs.
9. The long-life screen device of the vibrating screen as claimed in claim 8, wherein the distance between the baffles L1 is 150-.
10. A long life vibratory screen apparatus as set forth in any one of claims 1-9 wherein the longitudinal centerline of the plane of the bottom plate of the isolation cushioning member coincides with the longitudinal centerline of the screen surface and the transverse centerline of the plane of the bottom plate of the isolation cushioning member is disposed at 1/4 from top to bottom of the screen surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030566.5A CN113828508A (en) | 2021-09-03 | 2021-09-03 | Device for prolonging service life of screen of vibrating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030566.5A CN113828508A (en) | 2021-09-03 | 2021-09-03 | Device for prolonging service life of screen of vibrating screen |
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| CN113828508A true CN113828508A (en) | 2021-12-24 |
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| CN202111030566.5A Pending CN113828508A (en) | 2021-09-03 | 2021-09-03 | Device for prolonging service life of screen of vibrating screen |
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| JP2006122852A (en) * | 2004-10-29 | 2006-05-18 | Furukawa Co Ltd | Apparatus for removing fine powder of crushed stone |
| CN203389855U (en) * | 2013-07-27 | 2014-01-15 | 孙艳杰 | Vibrating screen plate |
| CN205032363U (en) * | 2015-08-25 | 2016-02-17 | 天津奥尔斯特矿业设备制造有限公司 | Ore sand separator |
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| CN108654984A (en) * | 2018-05-07 | 2018-10-16 | 郑州网知汇信息科技有限公司 | A kind of addition agent feeding device for high molecular material production |
| CN208542538U (en) * | 2018-06-21 | 2019-02-26 | 宁夏鑫利宝石化有限责任公司 | A kind of wear-resisting vibrating screen of mineral products sand washer adapted |
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2021
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| JP2006122852A (en) * | 2004-10-29 | 2006-05-18 | Furukawa Co Ltd | Apparatus for removing fine powder of crushed stone |
| CN203389855U (en) * | 2013-07-27 | 2014-01-15 | 孙艳杰 | Vibrating screen plate |
| CN205032363U (en) * | 2015-08-25 | 2016-02-17 | 天津奥尔斯特矿业设备制造有限公司 | Ore sand separator |
| CN106583238A (en) * | 2016-12-19 | 2017-04-26 | 新乡市振英机械设备有限公司 | Material feeding buffer device of spin vibration sieve |
| CN107552128A (en) * | 2017-10-10 | 2018-01-09 | 李云 | It is a kind of from feed type pebble pulverizer screening plant |
| CN108654984A (en) * | 2018-05-07 | 2018-10-16 | 郑州网知汇信息科技有限公司 | A kind of addition agent feeding device for high molecular material production |
| CN208542538U (en) * | 2018-06-21 | 2019-02-26 | 宁夏鑫利宝石化有限责任公司 | A kind of wear-resisting vibrating screen of mineral products sand washer adapted |
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