CN217616001U - Fine sand screening device - Google Patents

Abstract

The utility model discloses a fine sand screening plant, which comprises a support component and a screening component arranged on the support component, wherein the screening component comprises a screen mesh, a first water tank for collecting water body passing through the screen mesh, a water outlet pump for pumping out the water body in the first water tank, and a fine sand recycling machine with a feed end connected with a second water outlet of the water outlet pump; the support component is of a frame structure, and the first water tank is positioned below or right below the side of the screen; the fine sand recycling machine is arranged on the side face of the screen, comprises a sand outlet and a first conveying assembly with a feed inlet located at the position of the sand outlet, and the feed inlet serves as the lower end of a material transfer path of the first conveying assembly. This scheme of adoption can be used to retrieve the fine sand in the produced waste material of concrete mixing station in order to realize waste utilization.

Description

Fine sand screening device

Technical Field

The utility model relates to a concrete production technical field especially relates to a fine sand screening plant.

Background

In the prior art, the concrete aggregate plays a role of a framework or filling in the concrete, so that the shrinkage of the concrete can be reduced; by selecting proper aggregate specification and aggregate gradation, concrete with required functions can be prepared; the good concrete aggregate gradation can also save the cement consumption in the concrete and accurately control the quality of the concrete.

The concrete aggregate in the concrete mixing station is generally purchased outside to ensure the supply of the concrete aggregate in the mixing station. However, if outsourcing concrete aggregate cannot reach the mixing station in time, normal production of concrete in the mixing station can be affected, and the adopted method comprises the steps of purchasing raw materials of the concrete aggregate outside the mixing station, cleaning and screening the raw materials of the concrete aggregate according to the required specification, and meeting the normal production requirement of the concrete. Therefore, the concrete mixing station equipment has the functions of cleaning and screening the raw materials of the concrete aggregate, and the initiative of the mixing station on raw material acquisition can be improved.

Concrete waste aggregates can be produced by cleaning a tank car of a concrete mixing station, cleaning a main machine of the mixing station and cleaning a field. Meanwhile, a large amount of waste concrete aggregate can be generated by residues and returned materials in the use process of the concrete. These waste concretes are generally not directly available: taking the aggregate contained therein as an example, the aggregate grading is not convenient to complete when being reused due to the fact that the aggregate with different specifications is contained. If the waste materials are directly discarded, the waste materials not only cause loss to enterprises, but also cause pollution to the environment. In the prior art, by adopting a concrete aggregate cleaning and screening system, the waste concrete aggregates can be recycled and reused for concrete production, thereby improving the economic benefit of enterprises and reducing the environmental pollution.

The existing concrete waste aggregate screening equipment of a concrete mixing station is mainly divided into spiral, roller and vibration concrete aggregate separation equipment. The spiral concrete aggregate separation equipment can only separate the mixture of coarse aggregate and fine aggregate from sewage, and the separated aggregate cannot directly enter concrete mixing production. The roller type concrete aggregate separation equipment can separate coarse aggregate and fine aggregate, but generally can only separate two kinds of fixed-specification aggregates, and cannot separate the concrete aggregate according to the required specification. In the aspect of operation convenience, the vibration type concrete aggregate separation equipment can more conveniently separate concrete aggregates with two specifications according to the required specification, and generally can not screen concrete aggregates with three or more specifications.

The aggregate screening system is further optimized, and the method has important significance for application of the aggregate screening system to a concrete mixing station.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem who provides further optimize the application of aggregate screening system on concrete mixing station and have significant to it, the utility model provides a fine sand screening plant adopts this scheme, can be used to retrieve the fine sand in the produced waste material of concrete mixing station in order to realize waste utilization.

To the above problem, the utility model provides a fine sand screening plant solves the problem through following technical essential: the fine sand screening device comprises a support assembly, a screening assembly arranged on the support assembly, a first water tank used for collecting water body penetrating through the screen, a water outlet pump used for pumping out the water body in the first water tank, and a fine sand recycling machine, wherein the feeding end of the fine sand recycling machine is connected with a second water outlet of the water outlet pump;

the support component is of a frame structure, and the first water tank is positioned below or right below the side of the screen;

the fine sand recycling machine is arranged on the side face of the screen, comprises a sand outlet and a first conveying assembly with a feed inlet located at the position of the sand outlet, and the feed inlet serves as the lower end of a material transfer path of the first conveying assembly.

With regard to the above three concrete aggregate separation apparatuses, it is common that the raw material screening and cleaning of the concrete aggregate cannot be performed, and the fine sand in the sewage after the concrete aggregate cleaning and screening cannot be recovered. If the fine sand in the sewage can not be recovered, the resource waste is caused, and meanwhile, the corresponding discharge pipeline can be blocked. Considering that the fine sand plays a role in filling gaps among coarse aggregates such as gravels, pebbles and the like in concrete production and increasing the strength of concrete, the scheme provides the fine sand screening device suitable for waste collection of a concrete mixing station. Meanwhile, as a person skilled in the art, in the corresponding specification or standard, the person skilled in the art can clearly distinguish coarse sand, medium sand, fine sand and extra-fine sand, for example, fine sand can be regarded as fine aggregate with a fineness modulus of 2.2-1.6 and an average particle size of 0.35-0.25 mm.

The working mode of the scheme is as follows: the screen is used for screening materials, so that the materials which cannot pass through the screen are separated from the materials which can pass through the screen, and meanwhile, as a person skilled in the art, the materials which can pass through the screen comprise a water body and fine sand according to the mesh size of the existing widely-used screen; after the fine sand and the water body enter the first water tank, the first water tank stores a mixture comprising the fine sand and the water body; under the action of the water outlet pump, the mixture enters the fine sand recycling machine through the feeding end, the fine sand recycling machine is used for separating fine sand, the separated fine sand is discharged to the feeding hole of the first conveying assembly through the sand outlet, and the separated fine sand is transferred through the first conveying assembly.

Different from the prior art, the screen is arranged as a component of the screening component, and the screening component adopting the screen has smaller height and is suitable for application (installed in a foundation pit on the ground) arranged in a layered manner relative to the ground, so that waste including water is directly dumped to the upper side of the screen through a ground surface drainage channel and a tank car staying on the ground (without specially building and lifting the slope of the tank car for dumping the waste), and screening of aggregates with different specifications is completed; in the scheme, the screen is arranged to be used as a component of the screening component, and the aggregate remained above the screen can be cleaned by using the water body in the waste so as to achieve the purpose of cleaning the aggregate; the water outlet pump is used as an active component to establish the processing state of the fine sand recycling machine on the content in the first water tank, so that the scheme determines whether to start the fine sand recycling machine according to the content in the first water tank, and the fine sand recycling machine can work relatively efficiently; the support assembly with the frame type structure has the characteristics of easy construction and capability of lifting the screen, so that fluid passing through the screen can be automatically gathered in the first water tank; through setting up first conveyor components, owing to can in time derive the foundation ditch with the fine sand, like this, not only can reduce the requirement to the foundation ditch volume, the fine sand that is shifted simultaneously can further shift to next station, if for the aggregate of screen cloth top, the fine sand moisture content is higher and moisture content control required time is longer, is used for reducing the sunning of moisture content as the purpose after being shifted out.

To sum up, this scheme is when applying to concrete mixing station, to like ground washing sewage, host computer washing sewage, the fine sand that contains in the concrete transport vechicle washing sewage, this scheme not only can realize concrete aggregate and collect again, wash and sieve, is suitable for the formula of sinking installation simultaneously to solve like the tank car transportation and the sewage of getting rid of does not have the problem of supplementary slope unloading.

The further technical scheme is as follows:

as the technicians in the field, aiming at different batches of waste sources, the contained water bodies, aggregate types and aggregate contents are not controllable, and in order to ensure that the water bodies for completing fine sand separation can be applied to aggregate cleaning on a screen to reduce the adhesion amount of fine sand on the aggregate above the screen, provide power for aggregate redistribution above the screen, relieve the blocking pressure of the screen or be used for blocking and dredging, the method is set as follows: the second water tank is used for collecting water discharged from the first water outlet on the fine sand recovery machine;

still include the water distribution device, the water distribution device is used for: and pumping the water body in the second water tank, and spraying the water body on the materials on the screen from the upper part of the screen. In the scheme, the second water tank is used for collecting water discharged from the first water outlet of the fine sand recovery machine, and the water distribution device sprays the water in the second water tank onto materials on the screen mesh so as to achieve the purposes of cleaning, redistribution, anti-blocking or blocking dredging. Preferably, the water distribution device comprises a pump body, and the pump body is provided with a variable frequency motor so as to utilize a frequency converter to control the rotating speed of the pump body to output fluids with different flow rates, and meet the requirements of materials on the screen on the acting force and the acting mode of the water body.

As a specific implementation way, the method is provided as follows: the support assembly is a steel structure frame which is built by a plurality of steel members, and each steel member is detachable relative to the steel structure frame;

the screening assembly comprises an assembly seat which is fixed on the steel structure frame and is detachable relative to the steel structure frame, the screen is detachably and obliquely installed on the assembly seat, and the screen is positioned above the steel structure frame;

the vibration driving assembly is used for driving the screen to vibrate;

the first conveying assembly is a spiral conveyor arranged obliquely, and the end where the feed inlet is located is the lower end of the spiral conveyor. In consideration of the fact that in the prior art, the concrete mixing station is applied according to specific engineering positions, the technical scheme is provided, and the concrete mixing station can be split into a plurality of single bodies so as to conveniently finish transfer to adapt to multiplexing; the technical scheme that the lower end of the screen can be used as an automatic discharging end by obliquely installing the screen is provided; providing a technical scheme for improving the screening effect and the anti-blocking capability of the screen by utilizing vibration; the technical scheme that fine sand can be reliably conveyed in a lifting mode is provided; the technical scheme that a larger space is arranged below the screen mesh and used as a discharging space is provided.

For making the aggregate that the screen cloth can separate out different specifications, set up as: in the height direction, the screen meshes are arranged in layers;

any two screens are: the mesh of the screen on the upper side is larger than the mesh of the screen on the lower side. The technical scheme is that the screen mesh above the screen mesh in the height direction can separate and separate aggregate with larger particle size.

For the screening ability that makes the screen cloth can be adjusted according to the demand is nimble, set up to: the screen cloth demountable installation is on screening subassembly. In this scheme, according to concrete application, the screen cloth of satisfying the screening demand is changed and corresponding purpose can be reached.

As described above, in this aspect, the present apparatus can be implemented by realizing the present apparatus for surface-sinking installation: the tank truck has no auxiliary slope for unloading, when a concrete tank truck rotationally pours cleaning water or cleaning water from a stirring main machine, after the corresponding waste is poured out, the tank truck has horizontal throwing motion with horizontal speed, and the position of a falling point of the waste on a screen is limited by using the baffles provided as follows, and the baffles are arranged as follows: the screen assembly further comprises a baffle plate which is obliquely or vertically arranged, and the lower end of the baffle plate is located right above the screen mesh.

As a technical scheme that the screening is completed by utilizing the screen mesh with high efficiency, and the aggregates on the screen mesh can be output from one corner of the screen mesh, the technical scheme is as follows: the screen is strip-shaped;

one end of the two ends of the screen in the width direction is higher than the other end, and the lower end of the baffle is positioned right above the higher end;

in the two ends of the screen cloth in the length direction, one end is higher than the other end, and the lower end of the baffle extends from one end to the other end. In the scheme, the wastes fall on the screen from the upper end of the screen in the width direction of the screen by the restraint of the baffle; in the length direction of the screen, the material on the screen moves from the upper end to the lower end of the screen.

If pipeline output wastes material, tank car output wastes material, ditch output wastes material, the wastes material all has certain concentration, distributes on the screen cloth as a can initiatively disperse wastes material to provide better aggregate cleaning effect, fine sand screening effect, reduce the technical scheme that the screen cloth is blockked up the possibility, set up to: the baffle is the equipartition board that is provided with the equipartition subassembly on it, the equipartition board slope sets up, the equipartition subassembly is used for: through the equipartition subassembly, to coming from the material of equipartition board upper end the material is along the in-process of domatic gliding on the equipartition board, through the equipartition subassembly dispersion material in order to realize the material redistribution for the material can drop on the different positions of screen cloth with the state of dispersion by a plurality of positions of equipartition board lower extreme. This scheme is one kind at wastes material along the equipartition board motion in-process promptly, utilizes the equipartition subassembly to accomplish the wastes material dispersion to the realization can export the wastes material dispersion to the technical scheme on the screen cloth for the baffle. As a person skilled in the art, the uniform distribution assembly can be a fixed device on the uniform distribution plate, and can also be a distribution push plate comprising a movable part, and the distribution of the falling points of the wastes on the screen is controlled by the movement of the distribution push plate.

As a technical scheme that the uniform distribution assembly is a fixed device on the uniform distribution plate, the uniform distribution assembly is arranged as follows: the uniform distribution assembly is a guide strip which is arranged on the slope surface and protrudes outwards relative to the slope surface;

the guide bars are multiple, and two ends of each guide bar are located at different height positions of the slope surface;

the relative state between the guide bars is in a divergent state from the upper end to the lower end of the slope. By adopting the scheme, the guide strips are close to each other at the upper end of the slope, so that the upper end positions of the guide strips can be used as slope material receiving positions, and after waste enters spaces among the guide strips from the upper ends of the guide strips, the guide strips are used as anti-overflow flanges of the spaces; because the guide bars are divergent when extending downwards, the wastes in different spaces can be guided and output to different positions of the screen.

In order to avoid side waste spill on the baffle, set up as: the left end and the right end of the baffle are both provided with bending parts, and the bending parts form side flanges capable of realizing material overflow protection on the left side and the right side of the baffle.

The utility model discloses following beneficial effect has:

different from the prior art, the screen is arranged as a component of the screening component, and the screening component adopting the screen has smaller height and is suitable for application (installed in a foundation pit on the ground) arranged in a layered manner relative to the ground, so that waste including water is directly dumped to the upper side of the screen through a ground surface drainage channel and a tank car staying on the ground (without specially building and lifting the slope of the tank car for dumping the waste), and screening of aggregates with different specifications is completed; in the scheme, the screen is arranged as a component of the screening component, and the aggregate remained above the screen can be cleaned by utilizing the water body in the waste so as to achieve the purpose of cleaning the aggregate; the water outlet pump is used as an active component to establish the processing state of the fine sand recycling machine on the content in the first water tank, so that the scheme determines whether to start the fine sand recycling machine according to the content in the first water tank, and the fine sand recycling machine can work relatively efficiently; the support assembly with the frame type structure has the characteristics of easy construction and capability of lifting the screen, so that fluid passing through the screen can be automatically gathered in the first water tank; through setting up first conveyor components, owing to can in time derive the foundation ditch with the fine sand, like this, not only can reduce the requirement to the foundation ditch volume, the fine sand that is shifted simultaneously can further shift to next station, if for the aggregate of screen cloth top, the fine sand moisture content is higher and moisture content control required time is longer, is used for reducing the sunning of moisture content as the purpose after being shifted out.

To sum up, this scheme is when applying to concrete mixing station, to like ground washing sewage, host computer washing sewage, the fine sand that contains in the concrete transport vechicle washing sewage, this scheme not only can realize concrete aggregate and collect again, wash and sieve, is suitable for the formula of sinking installation simultaneously to solve like the tank car transportation and the sewage of getting rid of does not have the problem of supplementary slope unloading.

Drawings

FIG. 1 is a front view of a partial structure of one embodiment of a fine sand screening device of the present disclosure showing the manner in which the screen assemblies, first conveyor assembly and carrier assembly are assembled;

FIG. 2 is a schematic structural diagram of a specific application example of the fine sand screening device according to the scheme, wherein the application example is that the screening device is installed in a sinking mode relative to the ground;

FIG. 3 is a partial top view of the fine sand screening device according to one embodiment of the present disclosure, showing the relationship between the first water tank and the water outlet pump;

FIG. 4 is a schematic view of a partial structure of an embodiment of a fine sand screening device according to the present disclosure, for showing the relationship between the screen and the baffle;

fig. 5 is a schematic partial structural view of a fine sand screening device according to an embodiment of the present invention, for showing the relationship between the screen and the baffle and the structure of the baffle.

The reference numbers in the drawings are respectively: 1. screening subassembly, 2, first conveying subassembly, 3, support subassembly, 4, fine sand recovery machine, 4.1, sand outlet, 4.2, first delivery port, 5, first water tank, 5.1, the mouth of intaking, 6, the delivery pump, 6.1, the second delivery port, 6.2, the water inlet, 7, the storage hopper, 7.1, fill top, 8, the batcher, 8.1, the discharge gate, 9, second conveying subassembly, 10, the screen cloth, 11, the equipartition board, 12, the gib.

Detailed Description

The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:

example 1:

as shown in fig. 1 to 5, the fine sand screening device comprises a support assembly 3 and a screen assembly 1 mounted on the support assembly 3, wherein the screen assembly 1 comprises a screen 10, a first water tank 5 for collecting water passing through the screen 10, the first water tank 5 is provided with a water outlet pump 6 for pumping the water in the first water tank 5, and the fine sand reclaimer 4 is connected with a second water outlet 6.1 of the water outlet pump 6 at a feeding end;

the support component 3 is of a frame structure, and the first water tank 5 is positioned below or right below the side of the screen mesh 10;

the fine sand recycling machine 4 is arranged on the side face of the screen 10, the fine sand recycling machine 4 comprises a sand outlet 4.1 and a first conveying assembly 2 with a feeding hole positioned at the position of the sand outlet 4.1, and the feeding hole is used as the lower end of a material transfer path of the first conveying assembly 2.

With regard to the above three concrete aggregate separation apparatuses, it is common that the raw material screening and cleaning of the concrete aggregate cannot be performed, and the fine sand in the sewage after the concrete aggregate cleaning and screening cannot be recovered. If the fine sand in the sewage can not be recovered, the resource waste is caused, and meanwhile, the corresponding discharge pipeline can be blocked. Considering that the fine sand plays a role in filling gaps among coarse aggregates such as gravels, pebbles and the like in concrete production and increasing the strength of concrete, the scheme provides the fine sand screening device suitable for waste collection of a concrete mixing station. Meanwhile, as a person skilled in the art, in the corresponding specification or standard, the person skilled in the art can clearly distinguish coarse sand, medium sand, fine sand and extra-fine sand, for example, the fine sand can be regarded as fine aggregate with a fineness modulus of 2.2-1.6 and an average particle size of 0.35-0.25 mm.

The working mode of the scheme is as follows: the screen 10 is used for screening materials to separate materials that cannot pass through the screen 10 from materials that can pass through the screen 10, and as a person skilled in the art, materials that can pass through the screen 10 include water and fine sand according to the mesh size of the existing widely used screen 10; after the fine sand and the water body enter the first water tank 5, the first water tank 5 stores a mixture including the fine sand and the water body; under the action of the water outlet pump 6, the mixture enters the fine sand recycling machine 4 through the feeding end, the fine sand recycling machine 4 is used for completing fine sand separation, the sorted fine sand is discharged to the feeding hole of the first conveying assembly through the sand outlet 4.1, and the sorted fine sand is transferred through the first conveying assembly 2.

Different from the prior art, the screen 10 is arranged as a component of the screen assembly 1, the screen assembly 1 adopting the screen 10 has smaller height and is suitable for application (installed in a foundation pit on the ground) in a layered manner relative to the ground, so that waste including water is directly dumped to the upper side of the screen 10 through a ground surface drainage channel and a tank truck staying on the ground (without specially building and lifting the slope of the tank truck for dumping the waste) so as to complete screening of aggregates with different specifications; in the scheme, the screen mesh 10 is arranged as a component of the screening component 1, and the aggregate remained above the screen mesh 10 can be cleaned by using the water body in the waste so as to achieve the purpose of cleaning the aggregate; the water outlet pump 6 serves as an active part to establish the processing state of the fine sand reclaimer 4 on the contents in the first water tank 5, so that whether the fine sand reclaimer 4 is started or not is determined according to the amount of the contents in the first water tank 5, and the fine sand reclaimer 4 can work relatively efficiently; the support assembly 3 in a frame type structure has the characteristics of being easy to build and capable of lifting the screen mesh 10, so that fluid passing through the screen mesh 10 can be automatically gathered in the first water tank 5; through setting up first conveyor components 2 is owing to in time derive the foundation ditch with the fine sand, like this, not only can reduce the requirement to the foundation ditch volume, and the fine sand that is shifted simultaneously can further shift to next station, if for the aggregate of screen cloth 10 top, the fine sand moisture content is higher and moisture content control required time is longer, is used for reducing the sunning of moisture content as the purpose after being shifted out.

To sum up, this scheme is when applying to concrete mixing station, to like ground washing sewage, host computer washing sewage, the fine sand that contains in the concrete transport vechicle washing sewage, this scheme not only can realize concrete aggregate and collect again, wash and sieve, is suitable for the formula of sinking installation simultaneously to solve like the tank car transportation and the sewage of getting rid of does not have the problem of supplementary slope unloading.

Example 2:

the embodiment is further refined on the basis of the embodiment 1:

as the technicians in the field, aiming at waste sources of different batches, the contained water bodies, aggregate types and aggregate contents are uncontrollable, and in order to ensure that the water bodies for completing fine sand separation can be applied to aggregate cleaning on the screen 10 to reduce the adhesion amount of the fine sand on the aggregate above the screen 10, provide power for aggregate redistribution above the screen 10, relieve the blocking pressure of the screen 10 or be used for blocking and dredging, the method is set as follows: the sand reclamation device also comprises a second water tank, wherein the second water tank is used for collecting water bodies discharged from a first water outlet 4.2 on the fine sand reclamation machine 4; still include the water distribution device, the water distribution device is used for: the water in the second tank is drawn and sprayed from above the screen 10 onto the material on the screen 10. In the scheme, the second water tank is used for collecting water discharged from the first water outlet 4.2 of the fine sand recycling machine 4, and the water distribution device sprays the water in the second water tank onto materials on the screen cloth 10 so as to be used for the purposes of cleaning, redistribution, anti-blocking or blocking dredging. Preferably, the water distribution device comprises a pump body, and the pump body is provided with a variable frequency motor so as to utilize a frequency converter to control the rotating speed of the pump body to output fluids with different flow rates, and meet the requirements of materials on the screen 10 on the acting force and the acting mode of the water body.

Example 3:

this example is further refined on the basis of example 1:

as a specific implementation way, the method is provided as follows: the support assembly 3 is a steel structure frame constructed by a plurality of steel members, and each steel member is detachable relative to the steel structure frame;

the screening assembly 1 comprises an assembly seat which is fixed on the steel structure frame and is detachable relative to the steel structure frame, the screen 10 is detachably and obliquely installed on the assembly seat, and the screen 10 is positioned above the steel structure frame;

the vibration driving component is used for driving the screen cloth 10 to vibrate;

first conveying component 2 is the screw conveyer of slope setting, feed inlet place end is screw conveyer's lower extreme. In the scheme, the concrete mixing station is applied along with a specific engineering position in the prior art, and the technical scheme is provided, wherein the concrete mixing station can be split into a plurality of single bodies so as to conveniently finish transfer to adapt to multiplexing; to provide a technical solution that the lower end of the screen cloth 10 can be used as an automatic discharging end by installing the screen cloth 10 obliquely; providing a technical scheme for improving the screening effect and the anti-blocking capability of the screen mesh 10 by utilizing vibration; the technical scheme that fine sand can be reliably conveyed in a lifting mode is provided; provides a technical proposal that a larger space is arranged below the screen cloth 10 as a discharging space.

Example 4:

this example is further refined on the basis of example 1:

in order to separate aggregates with different specifications from the screen 10, the following settings are adopted: in the height direction, the screen cloth 10 is arranged in layers;

any two screens 10 are: the mesh of the screen 10 at the upper side is larger than the mesh of the screen 10 at the lower side. The technical scheme is to provide the technical scheme that the screen 10 above the screen in the height direction can separate and separate aggregates with larger particle sizes.

Example 5:

this example is further refined on the basis of example 1:

in order to flexibly adjust the screening capacity of the screen mesh 10 according to requirements, the following steps are set: the screen cloth 10 is removably mounted on the screen assembly 1. In the scheme, according to specific application, the screen 10 meeting the screening requirement is replaced to achieve the corresponding purpose.

Example 6:

this example is further refined on the basis of example 1:

as described above, in this aspect, the present apparatus can be implemented by being installed in a submerged manner on the ground surface: the tank truck is used without auxiliary slope discharging, for example, when a concrete tank truck adopts rotary dumping cleaning water or cleaning water from a stirring main machine, the corresponding waste is poured out and is in horizontal throwing motion with horizontal speed, and the position of a dropping point of the waste on the screen mesh 10 is limited by using baffles provided as follows, and the arrangement is as follows: the screen assembly 1 further comprises a baffle plate which is obliquely or vertically arranged, and the lower end of the baffle plate is positioned right above the screen cloth 10.

As a technical scheme for effectively utilizing the screen cloth 10 to complete screening and enabling aggregates on the screen cloth 10 to be output from one corner of the screen cloth 10, the technical scheme is as follows: the screen 10 is in a strip shape;

of the two ends of the screen 10 in the width direction, one end is higher than the other end, and the lower end of the baffle is positioned right above the higher end;

of both ends of the screen cloth 10 in the longitudinal direction, one end is higher than the other end, and the lower end of the baffle extends from one end to the other end. In the scheme, the wastes fall on the screen mesh 10 from the upper end of the screen mesh 10 in the width direction of the screen mesh 10 through the restraint of the baffle; the material on the screen 10 moves from the upper end of the screen 10 to the lower end of the screen 10 in the length direction of the screen 10.

If pipeline output waste, tank car output waste, ditch output waste, the waste all has certain concentration, but as an initiative dispersion waste distributes on screen cloth 10 to provide better aggregate cleaning effect, fine sand screening effect, reduce the screen cloth 10 and block up the technical scheme of possibility, set up to: the baffle is the equipartition board 11 that is provided with the equipartition subassembly on it, the equipartition board 11 slope sets up, the equipartition subassembly is used for: through the equipartition subassembly, to coming from the material of equipartition board 11 upper end the material is along the in-process of domatic gliding on the equipartition board 11, through the equipartition subassembly dispersion material in order to realize the material redistribution for the material can be by the multiple positions of equipartition board 11 lower extreme with the state of dispersion fall on the different positions of screen cloth 10. This scheme is that one kind at wastes material along the 11 motion in-process of equipartition board, utilizes the equipartition subassembly to accomplish the wastes material dispersion to the realization can export the technical scheme on the screen cloth 10 with the wastes material dispersion for the baffle. As a person skilled in the art, the distribution assembly may be a fixed device on the distribution plate 11, or may for example comprise a movable distribution push plate, which is moved to control the distribution of the falling points of the waste on the screen mesh 10.

As a equipartition subassembly is the technical scheme of the fixed device on the equipartition board 11, sets up to: the uniform distribution component is a guide bar 12 which is arranged on the slope surface and protrudes outwards relative to the slope surface;

the guide bars 12 are multiple, and two ends of each guide bar 12 are located at different height positions of the slope surface;

the relative state between the guide bars 12 is divergent from the upper end to the lower end of the slope. By adopting the scheme, the guide strips 12 are close to each other at the upper end of the slope, so that the upper end positions of the guide strips 12 can be used as slope material receiving positions, and after waste enters spaces among the guide strips 12 from the upper ends of the guide strips 12, the guide strips 12 are used as anti-overflow flanges of the spaces; since the guide bars 12 are diverged as they extend downward, wastes of different spaces can be guided and output to different positions of the screen 10.

In order to avoid side waste spill on the baffle, set up as: the left end and the right end of the baffle are both provided with bending parts, and the bending parts form side flanges capable of realizing material overflow protection on the left side and the right side of the baffle.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.

Claims (10)

1. The fine sand screening device comprises a support assembly (3) and a screening assembly (1) installed on the support assembly (3), and is characterized in that the screening assembly (1) comprises a screen (10), a first water tank (5) used for collecting water body penetrating through the screen (10), a water outlet pump (6) used for pumping out the water body in the first water tank (5) is configured on the first water tank (5), and the fine sand screening device also comprises a fine sand recycling machine (4) of which the feed end is connected with a second water outlet (6.1) of the water outlet pump (6);

the support component (3) is of a frame structure, and the first water tank (5) is positioned below or right below the side of the screen (10);

the fine sand recycling machine (4) comprises a sand outlet (4.1) and a first conveying assembly (2) with a feeding hole located at the position of the sand outlet (4.1), wherein the feeding hole is used as the lower end of a material transfer path of the first conveying assembly (2).

2. A fine sand screening device according to claim 1, further comprising a second water tank for collecting water discharged from the first water outlet (4.2) on the fine sand reclaimer (4);

still include the water distribution device, the water distribution device is used for: and (3) extracting the water body in the second water tank, and spraying the water body onto the materials on the screen (10) from the upper part of the screen (10).

3. A fine sand screening device according to claim 1, wherein the seat assembly (3) is a steel structural frame built up from a plurality of steel members, each steel member being detachable with respect to the steel structural frame;

the screening assembly (1) comprises an assembly seat which is fixed on the steel structure frame and is detachable relative to the steel structure frame, the screen (10) is detachably and obliquely installed on the assembly seat, and the screen (10) is positioned above the steel structure frame;

the vibration driving component is used for driving the screen (10) to vibrate;

the first conveying assembly (2) is a spiral conveyor which is obliquely arranged, and the end where the feed inlet is located is the lower end of the spiral conveyor.

4. A fine sand screening device according to claim 1, wherein the screens (10) are arranged in layers in the height direction;

any two screens (10) are: the mesh of the screen (10) on the upper side is larger than the mesh of the screen (10) on the lower side.

5. A fine sand screening device according to claim 1, characterised in that the screen (10) is removably mounted on the screen assembly (1).

6. A fine sand screening device according to claim 1, characterised in that the screen assembly (1) further comprises a baffle disposed obliquely or vertically, the lower end of the baffle being located directly above the screen (10).

7. A fine sand screening device according to claim 6, wherein the screen (10) is in the form of a strip;

one end of the two ends of the screen (10) in the width direction is higher than the other end, and the lower end of the baffle is positioned right above the higher end;

one end of the two ends of the screen (10) in the length direction is higher than the other end, and the lower end of the baffle extends from one end to the other end.

8. The fine sand screening device according to claim 6, wherein the baffle is a uniform distribution plate (11) on which a uniform distribution assembly is arranged, the uniform distribution plate (11) is obliquely arranged, and the uniform distribution assembly is used for: through the equipartition subassembly, to coming from the material of equipartition board (11) upper end the material is along the in-process of domatic gliding on the equipartition board (11), through the equipartition subassembly dispersion material in order to realize the material redistribution for the material can fall on the different positions of screen cloth (10) with the state of dispersion by a plurality of positions of equipartition board (11) lower extreme.

9. The fine sand screening device of claim 8, wherein the spreader assembly is a guide bar (12) disposed on the sloping surface and convex relative to the sloping surface;

the guide bars (12) are multiple, and two ends of each guide bar (12) are located at different height positions of the slope surface;

the relative state between the guide bars (12) is divergent from the upper end to the lower end of the slope.

10. The fine sand screening device according to claim 6, wherein bent portions are arranged at the left end and the right end of the baffle plate, and the bent portions form side flanges capable of preventing materials from overflowing on the left side and the right side of the baffle plate.

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