CN115228600A - Aggregate purification system - Google Patents

Abstract

The invention belongs to the technical field of purification equipment, and discloses an aggregate purification system which comprises a flotation tank, a rotary screen, a hopper and a stirring device, wherein a filtering washing liquid is contained in the flotation tank, the rotary screen is rotatably connected to the flotation tank around an axial direction, a feeding port and a discharging port are communicated with two opposite sides of the rotary screen, a plurality of inner spiral plates are spirally wound in the rotary screen, the stirring device is arranged in the flotation tank and is suitable for stirring the filtering washing liquid, so that the filtering washing liquid flows from the feeding port to the discharging port through the inside of the rotary screen and flows back to the feeding port from the discharging port through the outside of the rotary screen, a mixed material enters the filtering washing liquid through the hopper, aggregates in the mixed material sink due to self weight and are separated from impurities, the impurities in the mixed material enter the rotary screen from the feeding port under the driving of the filtering washing liquid, and the rotary screen rotates to drive the inner spiral plates to push the impurities to move towards the discharging port. The aggregate purification system provided by the invention can effectively utilize the filter washing liquid and reduce the waste of the filter washing liquid.

Description

An aggregate purification system

technical field

The invention relates to the technical field of purification equipment, in particular to an aggregate purification system.

Background technique

When dealing with garbage in the fields of construction, mining, decoration, etc., the garbage mixture to be treated will be screened by components such as screen mesh ports and wind screening devices, and finally recyclable aggregates are extracted. However, some impurities will inevitably appear in the final aggregate, such as foamed plastic, wood blocks, leaves, etc., which will seriously affect the quality of the aggregate and greatly reduce the commercial value of the aggregate.

In the prior art, further purification of the aggregate can be achieved by adding a flotation operation link in the screening link and correspondingly adding a flotation device. In the flotation process, water-based filtrate is mainly used, but in the purification process, the amount of filtrate is generally large, and the utilization rate is low, and the amount of pollution and waste is large, which will also increase invisibly Production costs affect production profits.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an aggregate purification system, which can reduce the consumption of the filtrate and wash liquid in the purification process and improve the utilization rate.

For this purpose, the present invention adopts the following technical solutions:

An aggregate purification system, comprising:

The flotation cell is filled with filtrate washing liquid;

The trommel is arranged in the flotation tank and partially immersed in the filtrate and washing liquid, the trommel is connected to the flotation tank by rotating in the axial direction, and the opposite sides of the trommel are connected with the feeding material. an outlet and a discharge outlet, the inner spiral of the trommel is surrounded by a plurality of inner spiral plates;

a hopper, arranged above the feed port;

an agitation device, which is arranged in the flotation cell, and is suitable for agitating the filtrate and washing liquid, so that the filtrate washing liquid flows from the feed port through the inside of the trommel to the discharge material port, and flow back to the feed port from the discharge port through the outside of the trommel screen;

The mixture enters into the filtrate through the hopper; wherein,

The aggregate in the mixture sinks due to its own weight and is separated from impurities;

The impurities in the mixture are driven by the filtration and washing liquid to enter the trommel from the feed port, and the trommel rotates to drive the inner spiral plate to push the impurities toward the outlet. move in the direction of the feed opening.

Optionally, the outer peripheral wall of the trommel screen is provided with a plurality of sieve holes, and the sieve holes are suitable for removing the impurities whose size is not larger than the sieve hole diameter in the process of moving the impurities in the direction of the discharge port. The impurities are screened, and the impurities with a size larger than the pore size of the sieve are moved to the discharge port under the push of the inner spiral plate.

Optionally, an aggregate conveying device is also included, and the aggregate conveying device is used for conveying the aggregate.

Optionally, a small-sized impurity conveying device is also included, and the small-sized impurity conveying device is used for conveying the impurity whose size is not larger than the aperture of the sieve.

Optionally, a large-size impurity conveying device is also included, and the large-size impurity conveying device is used for conveying the impurity whose size is larger than the aperture of the sieve.

Optionally, the conveying end of the aggregate conveying device extends into the flotation cell and is located below the hopper, and the aggregate conveying device is inclined upward along the conveying direction;

The conveying end of the small-sized impurity conveying device extends into the flotation cell and is located below the cylinder of the trommel screen, and the small-sized impurity conveying device is inclined upward along the conveying direction;

The conveying end of the large-size impurity conveying device extends into the flotation cell and is located below the material outlet, and the large-size impurity conveying device is inclined upward along the conveying direction.

Optionally, the aggregate conveying device, the large-sized impurity conveying device and the small-sized impurity conveying device are all configured as screw conveyors.

Optionally, a rotary drive device is also included, and the rotary drive device can drive the trommel to rotate.

Optionally, the rotary drive device includes:

motor;

a driving sprocket, arranged on the output shaft of the drive motor;

The driven sprocket is sleeved on the outer peripheral wall of the trommel;

The driving chain is meshed and connected with the driving sprocket and the driven sprocket respectively.

Optionally, the stirring device is configured as a water pump.

Beneficial effects:

In the aggregate purification system provided by the invention, when the purification work is performed, the rolling screen rotates, and the stirring device works to agitate the filtrate in the flotation tank, so that the filtrate flows from the feed port through the drum screen to the discharge Then the discharge port flows back to the feed port through the outside of the trommel screen, which can realize the flow cycle of the filtrate and washing liquid in the flotation cell, and then can effectively utilize the filtrate and washing liquid, reduce the amount of the filtrating and washing liquid, and reduce the waste. In addition, the mixture mixed with aggregates and impurities is introduced into the hopper, so that the mixture enters the filtrate through the hopper. Since the aggregate is heavy, the aggregate in the impurities will be under the action of its own weight after entering the filtrate. It sinks and is separated from the impurities. The impurities in the mixture will not sink for the first time due to their light weight. They will enter the trommel from the feed port under the drive of the filtrate and wash, and will be pushed down by the inner spiral plate. The discharge port moves in the direction, thereby realizing the reliable purification of the aggregate, the structure is simple, and the purification effect is reliable.

Description of drawings

Fig. 1 is the structural representation of the aggregate purification system of the present invention;

Fig. 2 is the front view of the aggregate purification system of the present invention;

Fig. 3 is the top view of the aggregate purification system of the present invention;

FIG. 4 is a schematic structural diagram of a part of the rotary drive device of the present invention.

In the picture:

100. Flotation cell; 110. Filtration and washing liquid;

200, trommel screen; 201, feeding port; 202, discharging port; 210, inner spiral plate;

300, hopper;

400, stirring device;

500. Aggregate conveying device;

600. Small size impurity conveying device;

700. Large size impurity conveying device;

810, drive motor; 820, drive sprocket; 830, driven sprocket; 840, drive chain.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for convenience of description and simplified operation, rather than indicating Or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

This embodiment provides an aggregate purification system. Referring to FIG. 1 to FIG. 3 , the aggregate purification system includes a flotation cell 100 , a trommel screen 200 , a hopper 300 and a stirring device 400 , wherein the flotation cell 100 contains a filter The washing liquid 110 and the trommel screen 200 are arranged in the flotation cell 100 and partially immersed in the filtration and washing liquid 110. The trommel screen 200 is connected to the flotation cell 100 by rotating in the axial direction, and the opposite sides of the trommel screen 200 are connected with the feeding material The trommel screen 200 is spirally surrounded by a plurality of inner spiral plates 210, the hopper 300 is arranged above the feed inlet 201, the stirring device 400 is arranged in the flotation cell 100, and the stirring device 400 is suitable for The filtration and washing liquid 110 is stirred, so that the filtration and washing liquid 110 flows from the feeding port 201 through the inside of the trommel screen 200 to the feeding port 202 , and flows back to the feeding port 201 from the feeding port 202 through the outside of the trommel screen 200 . The mixed material enters the filtration and washing liquid 110 through the hopper 300, wherein the aggregate in the mixed material sinks due to its own weight and is separated from the impurities, and the impurities in the mixed material are driven by the filtration and washing liquid 110. , the trommel screen 200 rotates to drive the inner spiral plate 210 to push the impurities to move in the direction of the discharge port 202 .

In this embodiment, when the purification work is performed, the rolling screen 200 is rotated, and the stirring device 400 can agitate the filtrate 110 in the flotation cell 100, so that the filtrate 110 passes through the trommel 200 from the feeding port 201. The inside flows to the discharge port 202, and then flows back to the feed port 201 from the discharge port 202 through the outside of the trommel screen 200, that is, the flow cycle of the filtrate 110 in the flotation cell 100 can be realized, and the filtrate 110 Effective utilization, reducing the amount of the filtrate and washing liquid 110, and reducing waste. In addition, the mixture mixed with aggregates and impurities is introduced into the hopper 300, so that the mixture enters the filtrate 110 through the hopper 300. Since the aggregate is heavy, the aggregates in the impurities will enter the filtrate 110. It sinks under the action of its own weight and is separated from the impurities. The impurities in the mixture will not sink immediately due to their light weight, but will enter the trommel 200 through the feeding port 201 under the drive of the filtrate and washing liquid 110, and enter the trommel screen 200 in the The inner spiral plate 210 moves toward the direction of the discharge port 202 under the push of the inner spiral plate 210, so as to realize the reliable purification of the aggregate, the structure is simple, and the purification effect is reliable.

In this embodiment, the filtration and washing liquid 110 is preferably set to be water, and the aggregate can also be thoroughly cleaned during the purification process. The stirring device 400 may be a water pump or a water stirring paddle or other device capable of realizing the orderly flow of the filtrate and washing liquid 110 in the flotation cell 100 , which is not limited here.

Further, the outer peripheral wall of the trommel screen 200 is provided with a plurality of sieve holes, and the sieve holes are suitable for sieving the impurities whose size is not larger than the sieve hole diameter in the process of moving the impurities in the direction of the discharge port 202, and the size is larger than the sieve hole. The impurities in the aperture move to the outlet 202 under the push of the inner spiral plate 210 . Specifically, the aperture size of the sieve hole is preferably set to 1 mm. During the screening work, with the rotation of the trommel 200, the inner spiral plate 210 pushes the impurities to move in the direction of the discharge port 202, and the impurities are also filtered and washed during the moving process. The liquid 110 drops slowly due to its own weight. When it falls to the bottom of the trommel screen 200, impurities with a size not larger than 1mm will fall into the flotation cell 100 through the screen holes, while impurities with a size larger than 1mm will continue to be trapped in the tumbler. The sieve 200 moves forward, and finally moves to the discharge port 202, thereby realizing the classification of impurities, so that the impurities can be classified and processed more efficiently later.

Further, the aggregate purification system of this embodiment further includes an aggregate conveying device 500, and the aggregate conveying device 500 is used for conveying the aggregate. Specifically, the conveying end of the aggregate conveying device 500 extends into the flotation cell 100 and is located below the hopper 300 for directly receiving the purified aggregate. Preferably, the aggregate conveying device 500 is inclined upward along the transportation direction, so that when the aggregate is transported, part of the filtrate and washing liquid 110 carried out from the aggregate can fall back into the flotation cell 110 due to gravity, The multi-filtration washing liquid 110 will not be carried over when the aggregate is transported, thereby realizing the efficient utilization of the filtering washing liquid 110 and avoiding waste.

Further, the aggregate purification system of this embodiment further includes a small-sized impurity conveying device 600, and the small-sized impurity conveying device 600 is used for conveying impurities whose size is not larger than the sieve aperture. Specifically, the conveying end of the small-sized impurity conveying device 600 extends into the flotation cell 100 and is located below the cylindrical body of the trommel screen 200 , that is, below the plurality of sieve holes, and is used to directly undertake the screening from the trommel screen 200 The size of impurities is not larger than the sieve aperture. Preferably, the small-sized impurity conveying device 600 is inclined upward along the conveying direction. The purpose of this setting is that when the impurity is conveyed, part of the filtrate and washing liquid 110 carried out from the impurity can fall back into the flotation cell 100 due to gravity, so as to prevent the impurity from being transported. The multi-filtration washing liquid 110 will be taken away when the impurities are transported, so as to further realize the efficient utilization of the filtering washing liquid 110 and avoid waste.

Further, the aggregate purification system of this embodiment further includes a large-sized impurity conveying device 700, and the large-sized impurity conveying device 700 is used for conveying impurities whose size is larger than the sieve aperture. Specifically, the conveying end of the large-sized impurity conveying device 700 extends into the flotation cell 100 and is located below the discharge port 202, for directly receiving impurities whose size is larger than the sieve aperture. Preferably, the large-sized impurity conveying device 700 is inclined upward along the conveying direction. The purpose of this setting is that when the impurity is conveyed, part of the filtrate and washing liquid 110 carried out from the impurity can fall back into the flotation cell 100 due to gravity, so as not to The multi-filtration washing liquid 110 will be taken away when the impurities are transported, so as to further realize the efficient utilization of the filtering washing liquid 110 and avoid waste.

In this embodiment, the aggregate conveying device 500 , the small-sized impurity conveying device 600 and the large-sized impurity conveying device 700 are all configured as screw conveyors. There is a gap between the screw blades of the screw conveyor and the casing, so that when the screw conveyor is conveying, part of the filtrate 110 carried out by the screw conveyor can flow back to the flotation cell 100 through the gap, which can more effectively realize the filtering and washing. The efficient use of the lotion 110 ensures practicality.

The specific structure and conveying principle of the screw conveyor are all in the prior art, which will not be repeated here.

In this embodiment, a rotary driving device is further included, and the rotary driving device can drive the trommel screen 200 to rotate, so as to realize automatic control of the rotation of the trommel screen 200 .

As a preferred embodiment, referring to FIG. 4 , the rotary drive device includes a drive motor 810 , a driving sprocket 820 , a driven sprocket 830 and a driving chain 840 , wherein the driving sprocket 820 is arranged on the output shaft of the driving motor 810 Above, the driven sprocket 830 is sleeved on the outer peripheral wall of the trommel 200, and the driving chain 840 is meshed and connected with the driving sprocket 820 and the driven sprocket 830 respectively. Specifically, the rotation of the output shaft of the driving motor 810 can drive the driving sprocket 820 to rotate, and the rotation of the driving sprocket 820 can drive the driven sprocket 830 to rotate through the driving chain 840 , thereby realizing the rotation control of the trommel 200 .

This embodiment is not limited to this, and the rotary driving device may also have other structures, which will not be limited here.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. an aggregate purification system, is characterized in that, comprises: a flotation cell (100), containing the filtrate (110); A trommel (200) is arranged in the flotation cell (100) and partially immersed in the filtrate (110), and the trommel (200) is rotatably connected to the flotation cell (110) in an axial direction. 100), the opposite sides of the trommel screen (200) are communicated with a feed port (201) and a discharge port (202), and the trommel screen (200) is spirally surrounded by a plurality of inner spiral plates (210). ); a hopper (300), arranged above the feed port (201); An agitation device (400) is provided in the flotation cell (100), and the agitation device (400) is adapted to agitate the filtrate (110), so that the filtrate (110) is removed by the The feed port (201) flows through the inside of the trommel screen (200) to the discharge port (202), and flows back to the discharge port (202) through the outside of the trommel screen (200) from the discharge port (202) Feed port (201); The mixture enters the filtrate (110) through the hopper (300); wherein, The aggregate in the mixture sinks due to its own weight and is separated from impurities; The impurities in the mixture are driven by the filtration and washing liquid (110) to enter the trommel screen (200) from the feed port (201), and the trommel screen (200) rotates to drive all the impurities. The inner spiral plate (210) pushes the impurities to move in the direction of the discharge port (202). 2 . The aggregate purification system according to claim 1 , wherein a plurality of sieve holes are opened on the outer peripheral wall of the trommel screen ( 200 ), and the sieve holes are suitable for discharging the impurities toward the material. 3 . In the process of moving in the direction of the mouth (202), the impurities whose size is not larger than the sieve hole diameter are screened, and the impurities whose size is larger than the sieve hole diameter are pushed by the inner spiral plate (210). Move to the outlet (202). 3. The aggregate purification system according to claim 2, characterized in that, further comprising an aggregate conveying device (500), the aggregate conveying device (500) being used for conveying the aggregate. 4. The aggregate purification system according to claim 3, characterized in that it further comprises a small-sized impurity conveying device (600), and the small-sized impurity conveying device (600) is used for purifying the sieve with a size not larger than the sieve aperture. of the impurities are transported. 5. The aggregate purification system according to claim 4, characterized in that it further comprises a large-sized impurity conveying device (700), and the large-sized impurity conveying device (700) is used for purifying particles with a size larger than the sieve hole diameter. The impurities are transported. 6. The aggregate purification system according to claim 5, characterized in that the conveying end of the aggregate conveying device (500) extends into the flotation cell (100) and is located at the end of the hopper (300). Below, the aggregate conveying device (500) is inclined upward along the transportation direction; The conveying end of the small-size impurity conveying device (600) extends into the flotation cell (100) and is located below the cylindrical body of the trommel screen (200). The transport direction is tilted upwards; The conveying end of the large-size impurity conveying device (700) extends into the flotation cell (100) and is located below the discharge port (202), and the large-size impurity conveying device (700) is along the conveying direction Tilt the setting up. 7 . The aggregate purification system according to claim 6 , wherein the aggregate conveying device ( 500 ), the small-sized impurity conveying device ( 600 ) and the large-sized impurity conveying device ( 700 ) are 7 . Set up as a screw conveyor. 8. The aggregate purification system according to claim 1, characterized in that, further comprising a rotary driving device, wherein the rotary driving device can drive the trommel screen (200) to rotate. 9. The aggregate purification system according to claim 8, wherein the rotary drive device comprises: drive motor (810); a driving sprocket (820), arranged on the output shaft of the drive motor (810); A driven sprocket (830) is sleeved on the outer peripheral wall of the trommel (200); A driving chain (840) is meshed and connected with the driving sprocket (820) and the driven sprocket (830), respectively. 10. The aggregate purification system according to claim 1, wherein the stirring device (400) is configured as a water pump.

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