CN210279810U - Coarse-movement-preventing vibrating screen - Google Patents
Coarse-movement-preventing vibrating screen Download PDFInfo
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- CN210279810U CN210279810U CN201921287256.XU CN201921287256U CN210279810U CN 210279810 U CN210279810 U CN 210279810U CN 201921287256 U CN201921287256 U CN 201921287256U CN 210279810 U CN210279810 U CN 210279810U
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Abstract
The utility model discloses a coarse-movement-preventing vibrating screen, which comprises a screen frame, wherein a vibrating box body is arranged on the screen frame, and a sealing cover is arranged at the top of the screen frame; the right end part of the sealing cover is connected with a feed inlet; a bar sieve plate is arranged in the vibration box body, and a primary coarse material discharge port is formed in the vibration box body at the left end of the bar sieve plate; a polyurethane screen is arranged below the bar sieve plate; the vibrating box body below the polyurethane screen is connected with a screen underflow discharge port, and the vibrating box body at the left end of the polyurethane screen is provided with a secondary coarse material discharge port; the undersize discharge port extends downwards to the bottom end of the screen frame. The utility model discloses utilize the good advantage of stick sieve wearability, set up the stick sieve into first screen cloth, not only prevented that the bold material from strikeing, wearing and tearing polyurethane screen cloth, still reduced the material quantity and the particle size that fall into polyurethane screen cloth greatly. The polyurethane screen mesh is used for further screening undersize materials of the bar screen plate, so that the defect of high coarse rate of the bar screen plate is overcome.
Description
Technical Field
The utility model relates to a screening equipment.
Background
At present, with the continuous improvement of the national requirement on environmental protection, the steel industry urgently needs novel screening equipment for responding the national requirement on energy conservation and emission reduction and low-carbon metallurgy.
The bar sieve plate has the advantage of wear resistance, so the bar sieve plate is widely applied to the steel industry. But the bar screen plate also has the problem of higher coarse rate. The bar screen plate has a preset screening grain size, materials larger than the preset screening grain size are oversize materials, materials smaller than the preset screening grain size are undersize materials, and coarse grain running means that the materials larger than the preset screening grain size pass through the bar screen plate to become undersize materials. Polyurethane screens have the advantage of lower rate of coarseness, but are less wear resistant and more prone to damage especially when screening larger steel particles.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent running thick shale shaker has the advantage that stand wear and tear and run the coarse rate low concurrently.
In order to achieve the purpose, the coarse-leakage-preventing vibrating screen comprises a screen frame, wherein a vibrating box body is arranged on the screen frame, and a sealing cover is arranged at the top of the screen frame, is higher than the vibrating box body and is adjacent to the vibrating box body;
the right end part of the sealing cover is connected with a feed inlet which is used for being communicated with an external feed pipe;
the lower part of the vibration box body is connected with a vibration device; a bar sieve plate which is high at the right and low at the left is arranged in the vibration box body, and the right end part of the bar sieve plate is positioned below the feeding hole; a primary coarse material discharge port is formed in the vibration box body at the left end of the bar screen plate;
a polyurethane screen which is arranged in parallel with the bar screen at intervals is arranged below the bar screen, and the screen holes of the polyurethane screen are smaller than those of the bar screen;
the vibrating box body below the polyurethane screen is connected with a screen underflow discharge port, and the vibrating box body at the left end of the polyurethane screen is provided with a secondary coarse material discharge port; the undersize discharge port extends downwards to the bottom end of the screen frame.
The periphery of the sealing cover is downwards connected with an upper connecting cylinder which is positioned on the outer side of the circumferential edge of the vibrating box body; the bottom end of the upper connecting cylinder is provided with an upper horizontal folded edge; the periphery of the top of the vibration box body is connected with a lower connecting cylinder, and a lower horizontal folded edge is arranged on the lower connecting cylinder; a sleeve made of corrugated cloth is connected between the upper horizontal folding edge and the lower horizontal folding edge.
Along the length direction of the polyurethane screen, a plurality of bouncing ball devices are arranged below the polyurethane screen at intervals;
the bouncing ball device comprises a bouncing box body with an open top end, and the bouncing box body is arranged along the width direction of the polyurethane screen and connected to the vibrating box body; a plurality of bouncing cavities are partitioned in the bouncing box body, and the top end openings of the bouncing cavities are sealed by a polyurethane screen; elastic bouncing balls are respectively arranged in each bouncing cavity; the bouncing box body is of a frame type structure, a plurality of through holes are uniformly distributed on the bottom wall and the side wall of the bouncing box body, the diameter of the bouncing ball is larger than that of the through hole, and the diameter of the through hole is larger than that of the mesh of the polyurethane screen.
A plurality of supporting steel pipes for supporting the polyurethane screen are arranged below the polyurethane screen at intervals along the length direction of the polyurethane screen, and the supporting steel pipes and the bouncing ball hitting device are arranged at intervals; the front end and the rear end of the supporting steel pipe are connected with the vibration box body.
A tension adjusting device is arranged at the right end of the polyurethane screen;
tension adjusting device includes the channel-section steel that is connected with the vibrating bin, channel-section steel fixedly connected with fixed mounting panel, and the tension regulating spindle is worn to be equipped with in the last slip of fixed mounting panel, and the tension regulating spindle of fixed mounting panel one side has external screw thread and threaded connection to have a movable mounting panel through the right-hand member fixed connection of connecting plate and polyurethane screen cloth on the tension regulating spindle of fixed mounting panel opposite side, and the tension regulating spindle between movable mounting panel and the fixed mounting panel goes up the cover and is equipped with the spring.
The lower surface of the left end of the polyurethane screen is embedded with a positioning device, the positioning device comprises a positioning rod, a plurality of steel pipe sections are arranged on the positioning rod in a spaced and sleeved mode, the lower surface of the left end of the polyurethane screen is provided with a mounting groove, and the positioning rod and the steel pipe sections are fixedly embedded in the mounting groove; both ends all are located the lateral wall department of vibration box around the locating lever, wear to be equipped with positioning bolt on the lateral wall of vibration box, and positioning bolt penetrates the locating lever, and positioning bolt's outer end is located the lateral wall surface of vibration box and has the bolt head, and the pressure is equipped with the gasket between the lateral wall of bolt head and vibration box.
The vibrating device is a thin oil vibrator and comprises a vibrating motor, and an eccentric wheel is connected to a shaft of the vibrating motor.
The thin oil vibrators are provided with two sets, and the rotating directions of the eccentric wheels of the two sets of thin oil vibrators are opposite.
The utility model has the advantages of as follows:
the material initially entering the sieve has stronger washability; the utility model discloses utilize the good advantage of stick sieve wearability, set up the stick sieve into first screen cloth, carry out the coarse screening to the material that gets into the sieve, not only prevented that the bold material from strikeing, wearing and tearing polyurethane screen cloth, still reduced the material quantity and the particle size that fall into polyurethane screen cloth greatly, protected the polyurethane screen cloth. The polyurethane screen cloth is then further sieved the undersize thing of stick sieve, has avoided the higher defect of stick sieve run coarse rate, has guaranteed the utility model discloses the lower run coarse rate has on the whole.
Go up the horizontal hem and be connected with the sleeve that corrugated cloth made between the horizontal hem down, formed the flexible coupling between sealed cowling and vibration box like this, the vibration of vibration box can not transmit for the sealed cowling through corrugated cloth, therefore the sealed cowling both plays good sealed effect, does not participate in the vibration again in the course of the work, has lightened vibrating motor's load, therefore has the advantage that the energy consumption is low.
In the vibration process of the vibration box body, the distance between the upper horizontal folding edge and the lower horizontal folding edge can correspondingly oscillate. The corrugated cloth has elasticity, can adapt to the oscillation of above-mentioned distance, can keep encapsulated situation between vibrating box and closing cap all the time at the vibration in-process, prevents that the dust that the vibration in-process produced from giving off the environment through the clearance between vibrating box and the closing cap and going, guarantees that the vibrating screen process does not pollute the environment.
The vibrating device is arranged at the lower part of the vibrating box body, so that the gravity center of the vibrating screen is effectively reduced, the safety protection level is improved, the resonance time of starting and stopping is reduced, the screening efficiency is improved, and the daily management and maintenance of the vibrating device are more convenient.
In the coarse vibrating screen working process of preventing running, under the vibration effect of vibrating box and polyurethane screen cloth, each bullet is beaten the ball and is beaten the chamber incessantly in the bullet and jump, striking polyurethane screen cloth to promote the material of card in the polyurethane screen cloth or pass through the polyurethane screen cloth downwards, perhaps upwards pop out the polyurethane screen cloth again, and then played the effect that prevents the screen cloth jam.
The support steel pipe plays and supports the polyurethane screen cloth, prevents that the polyurethane screen cloth from being buckled and warp by the pressure under the effect of material, guarantees the normal clear of screening work.
The tension adjusting device has three functions, namely, the polyurethane screen is convenient to disassemble, and the tension adjusting shaft can be pulled out from the fixed mounting plate only by screwing the movable mounting plate on the tension adjusting shaft, so that the polyurethane screen and the tension adjusting shaft can be taken out from the vibration box body; secondly, the tension of the polyurethane screen is convenient to adjust; the pre-tightening force of the spring can be adjusted by adjusting the position of the movable mounting plate on the tension adjusting shaft, and is transmitted to the polyurethane screen through the movable mounting plate, the tension adjusting shaft and the connecting steel plate, so that the tension on the polyurethane screen is determined; thirdly, the polyurethane screen is protected by buffering; in the process of vibration screening, if the polyurethane screen is subjected to large force at a certain moment, the polyurethane screen is allowed to slide along the fixed mounting plate along with the tension adjusting shaft through the compression or relaxation of the spring, and the polyurethane screen can return to the original position under the reset action of the spring after external force disappears, so that the polyurethane screen is protected in a buffering mode when stressed.
The positioning device can position the left end (also the discharge end and the lower end) of the polyurethane screen on the one hand, and is convenient to detach and install on the other hand. The positioning rods can be installed on the vibration box body or taken down from the vibration box body only by installing or unscrewing the positioning bolts at the front end and the rear end of the positioning rods, and convenience is brought to installation or disassembly of the polyurethane screen. When the polyurethane screen is disassembled, the positioning rod and the polyurethane screen are integrally disassembled and the vibrating box body is taken out.
If only one set of eccentric wheel vibration device (namely a thin oil vibrator) is adopted, the materials jump up and down more in the longitudinal direction of the bar sieve plate under the driving of the vibration force, and only gradually move down under the action of self gravity; two sets of thin oil vibrators with opposite rotation directions are adopted, so that materials can move towards the downstream direction of the bar screen plate (namely towards the direction of the material outlet of the oversize) under the driving of vibration force, the moving screening process of the materials is accelerated, and the screening efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention; the utility model takes the direction facing the viewer in figure 1 as the forward direction and the left direction in figure 1 as the left direction; the left direction in fig. 1 is also the discharge direction of the oversize;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a view taken along line A-A of FIG. 1;
FIG. 4 is a view from the B-B direction in FIG. 1;
FIG. 5 is a view from the C-C direction in FIG. 1;
FIG. 6 is a schematic structural view of the left end of a polyurethane screen;
FIG. 7 is a schematic structural view of the positioning rod connected to the side wall of the vibration box;
fig. 8 is a schematic view of the assembly of the right end of the polyurethane screen.
Detailed Description
As shown in fig. 1 to 8, the coarse-movement-preventing vibrating screen of the present invention comprises a screen frame 1, a vibrating box body 2 is arranged on the screen frame 1, a sealing cover 3 is arranged on the top of the screen frame 1, and the sealing cover 3 is higher than the vibrating box body 2 and is adjacent to the vibrating box body 2;
the right end part of the sealing cover 3 is connected with a feed inlet 4, and the feed inlet 4 is used for being communicated with an external feed pipe;
the lower part of the vibration box body 2 is connected with a vibration device 5; a bar sieve plate 6 which is high at the right and low at the left is arranged in the vibrating box body 2, and the right end part of the bar sieve plate 6 is positioned below the feeding hole 4; a primary coarse material discharge port 7 is arranged on the vibration box body 2 at the left end of the bar sieve plate 6;
a polyurethane screen 8 which is arranged in parallel with the bar screen 6 at intervals is arranged below the bar screen 6, and the screen hole of the polyurethane screen 8 is smaller than that of the bar screen 6;
the vibrating box body 2 below the polyurethane screen 8 is connected with a screen underflow discharge port 10, and the vibrating box body 2 at the left end of the polyurethane screen 8 is provided with a secondary coarse material discharge port 9; the undersize material outlet 10 extends downwards to the bottom end of the screen frame 1.
The material initially entering the sieve from the feed inlet 4 has stronger washability; the utility model discloses utilize the good advantage of 6 wearabilities of stick sieve, set up stick sieve 6 into first screen cloth, carry out the coarse screening to the material that gets into the sieve, not only prevented that the bold material from strikeing, wearing and tearing polyurethane screen cloth 8, still reduced the material quantity and the particle size that fall into polyurethane screen cloth 8 greatly, protected polyurethane screen cloth 8. Polyurethane screen cloth 8 is then further sieved bar sieve 6's undersize thing, has avoided bar sieve 6 to run the higher defect of coarse rate, has guaranteed the utility model discloses lower coarse rate of running has on the whole. Coarseness is the rate at which material larger than the mesh of the screen enters the undersize.
The periphery of the sealing cover 3 is downwards connected with an upper connecting cylinder 11, and the upper connecting cylinder 11 is positioned on the outer side of the circumferential edge of the vibration box body 2; the bottom end of the upper connecting cylinder 11 is provided with an upper horizontal folding edge 12; the periphery of the top of the vibrating box body 2 is connected with a lower connecting cylinder 13, and a lower horizontal folding edge 14 is arranged on the lower connecting cylinder 13; a sleeve 15 made of corrugated cloth is connected between the upper horizontal folding edge 12 and the lower horizontal folding edge 14.
A sleeve 15 made of corrugated cloth is connected between the upper horizontal folding edge 12 and the lower horizontal folding edge 14, so that flexible connection is formed between the sealing cover 3 and the vibration box body 2, and the vibration of the vibration box body 2 cannot be transmitted to the sealing cover 3 through the corrugated cloth, so that the sealing cover 3 has a good sealing effect, does not participate in vibration in the working process, reduces the load of a vibration motor, and has the advantage of low energy consumption.
During the vibration of the vibration box body 2, the distance between the upper horizontal folding edge 12 and the lower horizontal folding edge 14 can correspondingly oscillate. The corrugated cloth has elasticity, can adapt to the oscillation of above-mentioned distance, can keep encapsulated situation between vibrating box 2 and seal cover 3 all the time at the vibration in-process, prevents that the dust that the vibration in-process produced from removing to the environment through the clearance between vibrating box 2 and the seal cover 3, guarantees that the vibrating screen process does not pollute the environment.
The vibrating device 5 is arranged at the lower part of the vibrating box body 2, so that the gravity center of the vibrating screen is effectively reduced, the safety protection level is improved, the resonance time of starting and stopping is reduced, the screening efficiency is improved, and the daily management and maintenance of the vibrating device 5 are more convenient.
Along the length direction of the polyurethane screen 8, a plurality of bouncing ball devices are arranged below the polyurethane screen 8 at intervals;
the bouncing ball device comprises a bouncing box body 16 with an open top end, and the bouncing box body 16 is arranged along the width direction of the polyurethane screen 8 and is connected to the vibration box body 2; a plurality of bouncing cavities 17 are arranged in the bouncing box body 16 in a separated mode, and the top end opening of each bouncing cavity 17 is sealed by a polyurethane screen 8; elastic bouncing balls 18 are respectively arranged in the bouncing cavities 17; the bouncing box body 16 is of a frame type structure, a plurality of through holes are uniformly distributed on the bottom wall and the side wall of the bouncing box body 16, the diameter of the bouncing ball 18 is larger than that of the through holes, and the diameter of the through holes is larger than that of meshes of the polyurethane screen 8. The undersize that falls into the rapping box 16 will fall downwardly through the rapping box 16.
The bouncing ball 18 may be made of a material having elasticity and strong abrasion resistance, such as a polyurethane material, a rubber material, or a silicone rubber.
In the coarse vibrating screen work process of preventing running, under the vibration effect of vibrating box 2 and polyurethane screen 8, each bullet beat ball 18 and jump, strike polyurethane screen 8 in the bullet chamber 17 ceaselessly to the material of promotion card in polyurethane screen 8 or downwards through polyurethane screen 8, perhaps upwards pop out polyurethane screen 8 again, and then played the effect that prevents the screen cloth jam.
Along the length direction of the polyurethane screen 8, a plurality of metal supporting steel pipes 19 for supporting the polyurethane screen 8 are arranged below the polyurethane screen 8 at intervals, and the supporting steel pipes 19 and the bouncing ball hitting device are arranged at intervals; the front end and the rear end of the supporting steel pipe 19 are connected with the vibration box body 2.
The support steel pipe 19 plays a role in supporting the polyurethane screen 8, preventing the polyurethane screen 8 from being bent and deformed under the action of materials and ensuring the normal operation of screening work.
A tension adjusting device is arranged at the right end of the polyurethane screen 8;
tension adjusting device includes the channel-section steel 20 that is connected with vibration box 2, 20 fixed connection of channel-section steel (if the welding) have fixed mounting panel 21, slide on the fixed mounting panel 21 and wear to be equipped with tension regulating spindle 22, the tension regulating spindle 22 of fixed mounting panel 21 one side passes through connecting plate 23 and polyurethane screen cloth 8's right-hand member fixed connection, external screw thread and threaded connection have a movable mounting board 24 on the tension regulating spindle 22 of fixed mounting panel 21 opposite side, the cover is equipped with spring 25 on the tension regulating spindle 22 between movable mounting board 24 and the fixed mounting panel 21.
The tension adjusting device has three functions, firstly, the polyurethane screen 8 is convenient to disassemble, the tension adjusting shaft 22 can be drawn out from the fixed mounting plate 21 only by screwing the movable mounting plate 24 on the tension adjusting shaft 22, and therefore the polyurethane screen 8 and the tension adjusting shaft 22 can be taken out from the vibration box body 2; secondly, the tension of the polyurethane screen 8 is convenient to adjust; the pre-tightening force of the spring 25 can be adjusted by adjusting the position of the movable mounting plate 24 on the tension adjusting shaft 22, and the pre-tightening force of the spring 25 is transmitted to the polyurethane screen 8 through the movable mounting plate 24, the tension adjusting shaft 22 and the connecting steel plate 23, so that the tension on the polyurethane screen 8 is determined; thirdly, the polyurethane screen 8 is protected by buffering; in the process of vibration screening, if the polyurethane screen 8 is subjected to a large force at a certain moment, the polyurethane screen 8 is allowed to slide along the fixed mounting plate 21 along with the tension adjusting shaft 22 through the compression or relaxation of the spring 25, and the polyurethane screen can return to the original position under the reset action of the spring 25 after the external force disappears, so that the polyurethane screen 8 is protected in a buffering manner when being stressed.
A positioning device is embedded in the lower surface of the left end of the polyurethane screen 8 and comprises a positioning rod 26, a plurality of steel pipe sections 27 are sleeved on the positioning rod 26 at intervals, a mounting groove 28 is formed in the lower surface of the left end of the polyurethane screen 8, and the positioning rod 26 and the steel pipe sections 27 are fixedly embedded in the mounting groove 28; the front end and the rear end of the positioning rod 26 are both positioned on the side wall of the vibration box body, a positioning bolt 29 penetrates through the side wall of the vibration box body 2, the positioning bolt 29 penetrates through the positioning rod 26, the outer end of the positioning bolt 29 is positioned on the outer surface of the side wall of the vibration box body 2 and is provided with a bolt head 30, and a gasket 31 is pressed between the bolt head 30 and the side wall of the vibration box body 2; a gap is provided between the positioning rod 26 and the spacer 31.
The positioning device can position the left end (also the discharge end and the lower end) of the polyurethane screen 8 on the one hand, and is convenient to detach and install on the other hand. The positioning rod 26 can be installed on the vibration box body 2 or taken down from the vibration box body 2 only by installing or unscrewing the positioning bolts 29 at the front end and the rear end of the positioning rod 26, so that convenience is provided for installing or disassembling the polyurethane screen 8. When the polyurethane screen 8 is detached, the positioning rod 26 and the polyurethane screen 8 are detached integrally and the vibration box 2 is taken out.
The vibrating device 5 is a thin oil vibrator and comprises a vibrating motor, and an eccentric wheel is connected to the shaft of the vibrating motor. The thin oil vibrators are provided with two sets, and the rotating directions of the eccentric wheels of the two sets of thin oil vibrators are opposite.
During operation, the material gets into by feed inlet 4 the utility model discloses a prevent running thick shale shaker falls on bar sieve 6. The thin oil vibrator is started, the eccentric wheel generates vibration in rotation, and in the vibration process of materials, smaller materials fall downwards through the bar sieve plate 6 to be classified. The coarse material is used as oversize material of the bar sieve plate 6, slides downwards along the bar sieve plate 6 and flows out from a first-stage coarse material outlet 7. The undersize of the bar screen plate 6 falls downwards on a polyurethane screen 8 for secondary screening. Oversize materials of the polyurethane screen 8 flow downwards along the polyurethane screen 8 and flow out of a secondary coarse material discharge port 9, and undersize materials of the polyurethane screen 8 fall into the bottom of the vibration box body 2 and finally flow out of an undersize material discharge port 10. The above processes are continuously carried out, and the materials are subjected to a continuous two-stage screening process.
The flexible connection is formed between the sealing cover 3 and the vibration box body 2, and the vibration of the vibration box body 2 can not be transmitted to the sealing cover 3 through the corrugated cloth sleeve 15, so that the sealing cover 3 does not participate in the vibration in the working process, the load of the vibration motor is reduced, and the vibration box has the advantage of low energy consumption.
During the vibration of the vibrating box body 2, the distance between the upper horizontal folding edge 12 and the lower horizontal folding edge correspondingly oscillates. The corrugated cloth has elasticity, can adapt to the oscillation of above-mentioned distance, can keep encapsulated situation between vibrating box 2 and seal cover 3 all the time at the vibration in-process, prevents that the dust that the vibration in-process produced from removing to the environment through the clearance between vibrating box 2 and the seal cover 3, guarantees that the vibrating screen process does not pollute the environment.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (8)
1. The coarse-leakage-preventing vibrating screen comprises a screen frame, wherein a vibrating box body is arranged on the screen frame, a sealing cover is arranged at the top of the screen frame, and the sealing cover is higher than the vibrating box body and is adjacent to the vibrating box body;
the right end part of the sealing cover is connected with a feed inlet which is used for being communicated with an external feed pipe; the method is characterized in that:
the lower part of the vibration box body is connected with a vibration device; a bar sieve plate which is high at the right and low at the left is arranged in the vibration box body, and the right end part of the bar sieve plate is positioned below the feeding hole; a primary coarse material discharge port is formed in the vibration box body at the left end of the bar screen plate;
a polyurethane screen which is arranged in parallel with the bar screen at intervals is arranged below the bar screen, and the screen holes of the polyurethane screen are smaller than those of the bar screen;
the vibrating box body below the polyurethane screen is connected with a screen underflow discharge port, and the vibrating box body at the left end of the polyurethane screen is provided with a secondary coarse material discharge port; the undersize discharge port extends downwards to the bottom end of the screen frame.
2. The run-out preventing coarse vibrating screen of claim 1, wherein: the periphery of the sealing cover is downwards connected with an upper connecting cylinder which is positioned on the outer side of the circumferential edge of the vibrating box body; the bottom end of the upper connecting cylinder is provided with an upper horizontal folded edge; the periphery of the top of the vibration box body is connected with a lower connecting cylinder, and a lower horizontal folded edge is arranged on the lower connecting cylinder; a sleeve made of corrugated cloth is connected between the upper horizontal folding edge and the lower horizontal folding edge.
3. The run-out preventing coarse vibrating screen of claim 1, wherein: along the length direction of the polyurethane screen, a plurality of bouncing ball devices are arranged below the polyurethane screen at intervals;
the bouncing ball device comprises a bouncing box body with an open top end, and the bouncing box body is arranged along the width direction of the polyurethane screen and connected to the vibrating box body; a plurality of bouncing cavities are partitioned in the bouncing box body, and the top end openings of the bouncing cavities are sealed by a polyurethane screen; elastic bouncing balls are respectively arranged in each bouncing cavity; the bouncing box body is of a frame type structure, a plurality of through holes are uniformly distributed on the bottom wall and the side wall of the bouncing box body, the diameter of the bouncing ball is larger than that of the through hole, and the diameter of the through hole is larger than that of the mesh of the polyurethane screen.
4. A run-out preventing shale shaker as claimed in any of claims 1 to 3, wherein: a plurality of supporting steel pipes for supporting the polyurethane screen are arranged below the polyurethane screen at intervals along the length direction of the polyurethane screen, and the supporting steel pipes and the bouncing ball hitting device are arranged at intervals; the front end and the rear end of the supporting steel pipe are connected with the vibration box body.
5. A run-out preventing shale shaker as claimed in any of claims 1 to 3, wherein: a tension adjusting device is arranged at the right end of the polyurethane screen;
tension adjusting device includes the channel-section steel that is connected with the vibrating bin, channel-section steel fixedly connected with fixed mounting panel, and the tension regulating spindle is worn to be equipped with in the last slip of fixed mounting panel, and the tension regulating spindle of fixed mounting panel one side has external screw thread and threaded connection to have a movable mounting panel through the right-hand member fixed connection of connecting plate and polyurethane screen cloth on the tension regulating spindle of fixed mounting panel opposite side, and the tension regulating spindle between movable mounting panel and the fixed mounting panel goes up the cover and is equipped with the spring.
6. The run-out preventing coarse vibrating screen of claim 4, wherein: the lower surface of the left end of the polyurethane screen is embedded with a positioning device, the positioning device comprises a positioning rod, a plurality of steel pipe sections are arranged on the positioning rod in a spaced and sleeved mode, the lower surface of the left end of the polyurethane screen is provided with a mounting groove, and the positioning rod and the steel pipe sections are fixedly embedded in the mounting groove; both ends all are located the lateral wall department of vibration box around the locating lever, wear to be equipped with positioning bolt on the lateral wall of vibration box, and positioning bolt penetrates the locating lever, and positioning bolt's outer end is located the lateral wall surface of vibration box and has the bolt head, and the pressure is equipped with the gasket between the lateral wall of bolt head and vibration box.
7. A run-out preventing shale shaker as claimed in any of claims 1 to 3, wherein: the vibrating device is a thin oil vibrator and comprises a vibrating motor, and an eccentric wheel is connected to a shaft of the vibrating motor.
8. The coarse flow preventing vibrating screen of claim 7, wherein: the thin oil vibrators are provided with two sets, and the rotating directions of the eccentric wheels of the two sets of thin oil vibrators are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921287256.XU CN210279810U (en) | 2019-08-09 | 2019-08-09 | Coarse-movement-preventing vibrating screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921287256.XU CN210279810U (en) | 2019-08-09 | 2019-08-09 | Coarse-movement-preventing vibrating screen |
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| Publication Number | Publication Date |
|---|---|
| CN210279810U true CN210279810U (en) | 2020-04-10 |
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| CN201921287256.XU Active CN210279810U (en) | 2019-08-09 | 2019-08-09 | Coarse-movement-preventing vibrating screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280476A (en) * | 2019-08-09 | 2019-09-27 | 河南顺锦机械设备有限公司 | It is anti-to run thick vibrating screen |
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2019
- 2019-08-09 CN CN201921287256.XU patent/CN210279810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280476A (en) * | 2019-08-09 | 2019-09-27 | 河南顺锦机械设备有限公司 | It is anti-to run thick vibrating screen |
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