CN214917854U - Laminated high-frequency vibration fine screen with water distribution pipeline system - Google Patents

Abstract

The utility model belongs to the technical field of the vibratory screening equipment technique of solid-liquid, solid double-phase separation and specifically relates to a take stromatolite high frequency vibration fine screen of water distribution piping system is equipped with the screen frame, is equipped with the screen cloth on the screen frame, and the screen cloth top is equipped with water distribution piping system, water distribution piping system including inlet tube, water-distribution pipe, water distribution branch pipe, nozzle, the inlet tube establish and be connected with the water-distribution pipe in the screen frame side through the tee bend, the water-distribution pipe is established in screen cloth middle part top, the one end and the inlet tube of water-distribution pipe are linked together, the other end of water-distribution pipe extends the another side of screen frame and blocks up through the blind plate, the water-distribution pipe on the equipartition be equipped with at least two sets of water distribution branch pipes, every group water distribution branch pipe divide into preceding branch pipe and after-branch pipe, preceding branch pipe and after-branch pipe on same axis, the tip of preceding branch pipe and after-branch pipe is connected with the nozzle, has simple structure, Convenient use, higher grading efficiency, less entrainment of fine mud on the sieve, good desliming effect and the like.

Description

Laminated high-frequency vibration fine screen with water distribution pipeline system

Technical Field

The utility model belongs to the technical field of the vibration screening equipment technique of solid-liquid, solid double-phase separation and specifically relates to a simple structure, convenient to use, classification efficiency are higher, the fine mud entrainment volume of product on the sieve is few, take off the effectual stromatolite high-frequency vibration fine screen of area water distribution pipe-line system of desliming.

Background

As is known, a stack sieve is a mechanical device that performs classification according to the particle size of a material by means of high-frequency vibration force of a sieve surface and gravity of the material. The device has been applied to industrial sites for 70 years since 1951, and is widely applied to the grading separation process of fine-grained materials in ore dressing and coal dressing. Due to the special vibration characteristics of high frequency and low amplitude and the high-elasticity polyurethane screen, the high-efficiency classification of fine-grained materials can be realized.

The sieve stacking has great development progress in recent decades, but some problems to be solved urgently still exist in desliming operation with high content of fine mud, such as sieving efficiency, fine clamping on the sieve and the like. Compared with conventional grading equipment such as a sieve bend, the equipment has the advantages that although the grading efficiency is greatly improved, when the materials with higher content of fine mud are screened, the screened products cannot completely desliming after being screened, and the screened products cannot meet the field requirements, so that other secondary desliming equipment is additionally arranged at the downstream of a concentrating mill, and the operation cost of the concentrating mill is sharply increased. Therefore, the technology for improving the grading efficiency of the stacked sieve and reducing the content of fine mud on the sieve is very necessary.

Disclosure of Invention

The utility model aims at solving the deficiencies of the prior art, providing a simple structure, convenient to use, classification efficiency are higher, the product fine mud on the sieve presss from both sides the zone volume few, take off the effectual stromatolite high frequency vibration fine screen of taking water distribution pipe-line system of mud.

The utility model provides a technical scheme that its technical problem adopted is:

a laminated high-frequency vibration fine screen with a water distribution pipeline system is provided with a screen body, a screen is arranged on the screen body, the water distribution pipeline system is arranged above the screen, the water distribution pipeline system comprises a water inlet pipe, a water distribution branch pipe and a nozzle, wherein the water inlet pipe is arranged on the side surface of the screen body and is connected with the water distribution pipe through a tee joint, the water distribution pipe is arranged above the middle part of the screen, one end of the water distribution pipe is communicated with the water inlet pipe, the other end of the water distribution pipe extends to the other side surface of the screen body and is plugged through a blind plate, at least two groups of branch water distribution pipes are uniformly distributed on the water distribution pipe, each group of branch water distribution pipe is divided into a front branch pipe and a rear branch pipe, the water distributor is characterized in that the front branch pipe and the rear branch pipe are on the same axis, the end parts of the front branch pipe and the rear branch pipe are connected with the nozzles, the lengths of the adjacent front branch pipe and the adjacent rear branch pipe on the same side of the water distribution pipe are different, and materials are subjected to water washing for 4 times under the action of the front branch pipe and the rear branch pipe with different lengths.

The nozzle establish to duckbilled type nozzle, be equipped with arc water guide plate on the duckbilled type nozzle, the one end of arc water guide plate is connected with duckbilled type nozzle's top, the other end of arc water guide plate is walked around behind duckbilled type nozzle's the shower nozzle towards the screen cloth top.

The screen cloth include one section screen cloth and two-stage process screen cloth, be connected through vertical board between one section screen cloth and the two-stage process screen cloth, there is one between two sections screen cloths and falls the height, can be used to falling of material and overturn, help the fine mud in the upper material falling the in-process and preferentially fall on the sieve.

The water distributor of the connecting part of the water distributor and the water inlet pipe is provided with a water inlet valve, and the water inlet quantity and the water pressure are controlled through the water inlet valve.

The blind plate establish to the blind end screw cap, the blind end screw cap can be dismantled with the water distributor and be connected, has the effect of sealed pipeline to can be used to the maintenance to the pipeline, when having silt or debris in the pipeline, can tear this nut open, then open the intake valve and use the sparge water with the foreign matter by the pipeline through this export discharge system, avoided the loaded down with trivial details maintenance process of tearing whole pipeline open.

The sum of the front branch pipe and the rear branch pipe on the same axis is the same.

The utility model discloses owing to adopt above-mentioned structure, have simple structure, convenient to use, classification efficiency are higher, the product fine mud entrainment volume is few on the sieve, take off advantages such as mud effectual.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in the attached drawings, the laminated high-frequency vibration fine screen with the water distribution pipeline system is provided with a screen body 1, a screen is arranged on the screen body 1, the water distribution pipeline system is arranged above the screen, the water distribution pipeline system comprises a water inlet pipe 2, a water distribution pipe 3, water distribution branch pipes and nozzles 5, the water inlet pipe 2 is arranged on the side surface of the screen body 1 and is connected with the water distribution pipe 3 through a tee joint, the water distribution pipe 3 is arranged above the middle part of the screen, one end of the water distribution pipe 3 is communicated with the water inlet pipe 2, the other end of the water distribution pipe 3 extends to the other side surface of the screen body 1 and is blocked by a blind plate 12, at least two groups of water distribution branch pipes are uniformly distributed on the water distribution pipe 3, each group of the water distribution branch pipes is divided into a front branch pipe 6 and a rear branch pipe 7, the front branch pipe 6 and the rear branch pipe 7 are on the same axis, the end parts of the front branch pipe 6 and the rear branch pipe 7 are connected with the nozzles 5, the adjacent front pipe 6 and the rear pipe 7 on the same side of the water distribution pipe 3 are different in length, the materials are washed and deslimed for 4 times through the action of the front supporting pipe 6 and the rear supporting pipe 7 with different lengths.

Further, nozzle 5 establish to duckbilled type nozzle 5, be equipped with arc water guide plate 4 on the duckbilled type nozzle 5, the one end of arc water guide plate 4 is connected with duckbilled type nozzle 5's top, the other end of arc water guide plate 4 is walked around behind duckbilled type nozzle 5's the shower nozzle towards the screen cloth top.

Furthermore, the screen cloth includes one section screen cloth 8 and two sections screen cloth 9, links through vertical board 10 between one section screen cloth 8 and the two sections screen cloth 9, has one between two sections screen cloth and falls the height, can be used to the falling upset of material, helps the fine mud in the upper material preferentially to fall on the sieve in the process of falling.

Furthermore, a water inlet valve 11 is arranged on the water distribution pipe 3 at the joint of the water distribution pipe 3 and the water inlet pipe 2, and the water inlet quantity and the water pressure are controlled through the water inlet valve 11.

Further, the blind plate 12 is set as a blind end screw cap, the blind end screw cap is detachably connected with the water distribution pipe 3, the blind end screw cap has the effect of sealing a pipeline and can be used for overhauling the pipeline, when sludge or sundries exist in the pipeline, the screw cap can be disassembled, then the water inlet valve 11 is opened, and the washing water is used for removing foreign matters from the pipeline through the outlet discharge system, so that the complicated overhauling process of disassembling the whole pipeline is avoided.

Further, the sum of the front branch pipe 6 and the rear branch pipe 7 on the same axis is the same.

The embodiment is provided with the following steps: the number of the front branch pipes 6 which are upwards divided by the water distribution pipe 3 is the same as that of the rear branch pipes 7 which are downwards divided by the water distribution pipe 3, and the total length of the front branch pipes 6 and the rear branch pipes 7 includes but is not limited to 1/2, 1/3, 1/4 or 1/n (n is more than or equal to 4) which occupies the length of the screen mesh, namely the length of the water distribution branch pipe on one section of the screen mesh 8 is L1, the length of the water distribution branch pipe above the two sections of the screen mesh 9 is L2, L1 is not equal to L2, and the length of the screen mesh is L1+ L2=1/n (n can be 1, 2, 3 or 4), the lengths of the adjacent front branch pipes 6 and the adjacent rear branch pipes 7 are different, but the distance between the adjacent front branch pipes 6 and the adjacent rear branch pipes 7 is required to be the same, the distance between the water distribution pipe 3 and the screen mesh can be 2, 3, 4 or n (n is more than or more than 4) cm, the farther from the screen face, the water inlet pressure needs to be larger, and the larger, The number of the water distribution branch pipes above the two-section screen 9 can be selected from 2, 3, 4, 5 and other different numbers according to the width of the screen. Under the action of water pressure, washing water is sprayed out from the duckbill-shaped nozzle 5 to form a water curtain, the width of the water curtain is in positive correlation with the water pressure, the system requires that the pressure of a washing water outlet is required to be 0.2-0.3Mpa, meanwhile, the other end of the water distribution pipe 3 is provided with a blind end screw cap, and the water inlet valve 11 is a spherical valve and is used for controlling the water inflow and the water pressure. When the sieve comes the material volume greatly, and the material layer is thicker on the sieve, and the fine fraction material passes through the sieve degree of difficulty great, can transfer the washing inflow greatly, and the water curtain area grow of washing water through 5 backstroke of duckbilled nozzle this moment, to the impact dynamics of the material of sieving strengthen, and material concentration on the sieve reduces, and the fine fraction passes through the sieve effect to be improved, and classification efficiency improves, its aim at of above-mentioned structure realizes following purpose: the washing and the desliming of the materials are completed by utilizing the water curtain of the stroke of the duckbill-shaped nozzle 5 to the maximum extent, according to the water distribution pipe 3-way system configured above, the materials can be washed and deslimed twice at least in the process of traveling on the screen, the materials are washed and deslimed 4 times in the overlapping area of the water curtains in the middle of the adjacent nozzles 5, the desliming effect of the screen is optimized and improved, when the materials are screened on the screen, the concentration of the screen materials can be increased along with the fine-grained materials and water entering into the chute below the screen, other fine-grained materials are difficult to move downwards, the screening penetrating effect can not be completed smoothly, the desliming effect is reduced, through the water distribution system configured above, when the concentration of the materials on the screen is increased, the concentration of the screen materials can be reduced through water supplementing, the secondary pulping effect is achieved, the materials can be used for completing the screening operation smoothly again, the screening efficiency is improved, and the secondary pulping effect can be completed on two sections of the screen at least twice, therefore, the screening efficiency of the screen is greatly improved.

The working process is as follows: the front and back of each layer of the screen machine of the stacked screen are totally two screen meshes for screening materials, the materials are fed from the feeding end of the stacked screen, under the linear vibration of a vibration motor, the fine mud and water gradually penetrate the screen, the content of the fine mud and water in the materials is gradually reduced, the concentration of the fine mud and water is gradually increased, the materials move to the middle section or the tail section of the screen meshes at the moment, and under the flushing action of a water curtain sprayed by a duckbill-shaped nozzle 5, the materials continue to carry out the vibration desliming process of the next process after finishing pulping again; when the material is deslimed and sieved on the first section of screen 8, the material falls to the second section of screen 9 and is deslimed and sieved again. The whole screening process material can be through washing dehydration more than 2 times, and screening efficiency improves greatly than traditional structure. The blind plate 12 screw cap of 3 one ends of water-distribution pipes is used for clearing up the pipe when the pipeline blocks up, improve equipment maintainability, have simple structure, convenient to use, classification efficiency are higher, the fine mud entrainment volume of product on the sieve is few, desliming advantage such as effectual.

Claims (6)

1. A laminated high-frequency vibration fine screen with a water distribution pipeline system is provided with a screen body, a screen is arranged on the screen body, the water distribution pipeline system is arranged above the screen, the water distribution pipeline system comprises a water inlet pipe, a water distribution branch pipe and a nozzle, wherein the water inlet pipe is arranged on the side surface of the screen body and is connected with the water distribution pipe through a tee joint, the water distribution pipe is arranged above the middle part of the screen, one end of the water distribution pipe is communicated with the water inlet pipe, the other end of the water distribution pipe extends to the other side surface of the screen body and is plugged through a blind plate, at least two groups of branch water distribution pipes are uniformly distributed on the water distribution pipe, each group of branch water distribution pipe is divided into a front branch pipe and a rear branch pipe, the water distributor is characterized in that the front branch pipe and the rear branch pipe are on the same axis, the end parts of the front branch pipe and the rear branch pipe are connected with the nozzles, the lengths of the adjacent front branch pipe and the adjacent rear branch pipe on the same side of the water distribution pipe are different, and materials are subjected to water washing for 4 times under the action of the front branch pipe and the rear branch pipe with different lengths.

2. The laminated high-frequency vibrating fine screen with the water distribution pipeline system as claimed in claim 1, wherein the nozzles are duckbilled nozzles, an arc water guide plate is arranged on the duckbilled nozzles, one end of the arc water guide plate is connected with the upper part of the duckbilled nozzles, and the other end of the arc water guide plate bypasses the spray heads of the duckbilled nozzles and then faces towards the upper part of the screen mesh.

3. The laminated high frequency vibratory fine screen with water distribution piping system of claim 1 wherein said screens comprise a first screen and a second screen, said first and second screens being connected by vertical plates.

4. The laminated high-frequency vibration fine screen with the water distribution pipeline system according to claim 1, wherein a water inlet valve is arranged on the water distribution pipe at the joint of the water distribution pipe and the water inlet pipe, and the water inlet valve is used for controlling the water inflow and the water pressure.

5. The laminated high-frequency vibrating fine screen with the water distribution pipeline system according to claim 1, wherein the blind plate is a blind end screw cap, and the blind end screw cap is detachably connected with the water distribution pipeline.

6. The laminated high frequency vibratory fine screen of claim 1, wherein the sum of said front and rear concentric tubes is the same.

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