CN115463818A

CN115463818A - Screening plant is used in blanc fixe production

Info

Publication number: CN115463818A
Application number: CN202211049006.9A
Authority: CN
Inventors: 王兰星; 王琦恒; 陈松
Original assignee: Ankang Hanbin District Dongxiang Mining Co
Current assignee: Ankang Hanbin District Dongxiang Mining Co
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-13

Abstract

The invention provides a screening device for barite powder production, and relates to the technical field of screening devices. A screening device for barite powder production comprises a box body, a hopper, a first screening device, a second screening device and a rotary screening device, wherein the hopper is arranged on the box body and communicated with the interior of the box body; one side of the first screening device is provided with a first cleaning assembly; this device can filter the blanc fixe step by step, can improve the screening quality of blanc fixe, also can reduce the load wearing and tearing that single screening plant received, extension fixture's life, and the screening plant of each grade all is equipped with independent clearance subassembly, and the clearance is simple and convenient, can effectual improvement work efficiency.

Description

Screening plant is used in blanc fixe production

Technical Field

The invention relates to the technical field of screening devices, in particular to a screening device for barite powder production.

Background

The barite powder is also called natural barium sulfate, and the barite powder is mainly used as a weighting agent for petroleum and natural gas drilling mud, and is required to be screened in the production and processing process of the barite powder, so that particles which do not meet the crushing requirement can be screened out for grinding again, the application field of the screening device is very wide, and raw materials with different sizes can be rapidly screened out from mixed raw materials so as to facilitate subsequent use.

Chinese patent application No. CN202120059387.3 discloses a screening device for barite powder production, which comprises a housing; a group of screening shells are fixedly connected above the shell; a group of second filter screens is connected in the shell in a sliding manner; a group of left driving shafts is rotatably connected inside the shell; the inside rotation of shell is connected with a set of right side drive shaft, the utility model discloses a first filter screen that is located the filter housing bottom filters the barite for the first time, and unqualified barite passes through pusher and discharges from the discharge gate, and through the rack and pinion transmission that left side sector gear and right side sector gear and driven rack constitute, drive the second filter screen and swing, further filter the barite.

However, in the above patent, the filtration mode of the barite powder is single, the barite powder which does not meet the requirement cannot be effectively filtered, and the large-particle powder blocks screened by the filtration screen cannot be effectively cleaned, so that the use effect is poor, and therefore the above problems need to be solved.

Disclosure of Invention

The invention aims to provide a screening device for barite powder production, which can be used for screening barite powder step by step, not only can improve the screening quality of the barite powder be improved, but also the load abrasion borne by a single screening device can be reduced, the service life of the device is prolonged, and each stage of screening device is provided with an independent cleaning assembly, so that the cleaning is simple and convenient, and the working efficiency can be effectively improved.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a screening device for barite powder production, which comprises a box body, a hopper, a first screening device, a second screening device and a rotary screening device, wherein the hopper is arranged on the box body and is communicated with the interior of the box body;

above-mentioned first screening plant one side is equipped with the first clearance subassembly that is used for clearing up the large granule powder piece of selecting, and above-mentioned second screening plant one side is equipped with the second clearance subassembly that is used for clearing up the large granule powder piece of selecting, and above-mentioned rotary screen device one side is equipped with the third clearance subassembly that is used for clearing up the large granule powder piece of selecting.

In some embodiments of the present invention, the first screening device includes a first vibrating device and a first filter screen, the first filter screen is obliquely disposed in the box body, and the first vibrating device is disposed at the bottom of the first filter screen;

the first cleaning assembly comprises a cleaning pipeline, a first outlet is formed in the side wall of the box body and located at the lower end of the first filter screen, and the cleaning pipeline is communicated with the first outlet.

In some embodiments of the present invention, a plurality of baffles are disposed above the first filter along an inclined direction of the first filter, and the plurality of baffles are connected to an inner top wall of the box.

In some embodiments of the present invention, the top view structure of any one of the baffles is V-shaped, two sides of the baffle are respectively arranged obliquely downwards to two sides along the direction in which the stone powder rolls off, and the bottom of any one of the baffles is of a sawtooth structure.

In some embodiments of the present invention, the second screening device includes an ultrasonic material level sensor, a conical funnel and a second vibration device disposed on a side wall of the conical funnel, the conical funnel is disposed in the box body, a second filter screen is disposed at a bottom of the conical funnel, the ultrasonic material level sensor is disposed on an upper portion of an inner wall of the conical funnel, a first cleaning port is disposed on a side wall of the conical funnel, and the first cleaning port is communicated with the second cleaning assembly.

In some embodiments of the present invention, the second cleaning assembly includes a first pump, a first pipe and a second pipe, the first pump is disposed on an outer wall of the box body, one end of the first pipe is communicated with an inlet end of the first pump, the other end of the first pipe extends into the box body and is communicated with the first cleaning port, a first valve is disposed at a connection position of the first pipe and the first cleaning port, and the second pipe is disposed at an outlet end of the first pump.

In some embodiments of the present invention, the rotary screening apparatus includes a mounting frame, an annular filter screen, and a driving device, the mounting frame is fixedly disposed on an inner wall of the box body, a mounting block is disposed at a bottom of the annular filter screen, a weight sensor is disposed between the mounting block and the annular filter screen, the annular filter screen is rotatably connected to the mounting frame through the mounting block, a top of the annular filter screen abuts against a bottom of the conical funnel, the driving device is disposed at the bottom of the box body, and a power shaft of the driving device penetrates through the box body and is in transmission connection with the annular filter screen;

a second cleaning opening is further formed in one side wall of the annular filter screen, a second valve is arranged at the second cleaning opening, and the second cleaning opening is communicated with the third cleaning assembly.

In some embodiments of the present invention, the third cleaning assembly includes a second pump, a third pipeline, and a fourth pipeline, the second pump is disposed on an outer wall of the box body, one end of the third pipeline is communicated with an inlet end of the second pump, the other end of the third pipeline extends into the box body, a driving member for driving the third pipeline to extend and retract is disposed in the box body, and the fourth pipeline is disposed at an outlet end of the second pump;

during screening, the annular filter screen rotates, and the driving piece drives the third pipeline to be far away from the second cleaning port; when the annular filter screen is cleaned, the driving piece drives the third pipeline to be communicated with the second cleaning port, so that the second pump can clean large granular powder blocks screened by the annular filter screen.

In some embodiments of the present invention, a bottom of the box body is provided with an inclined plate, a bottom end of the inclined plate abuts against the discharge port, and a bottom of the inclined plate is provided with a third vibrating device.

In some embodiments of the present invention, a damping base is further disposed at the bottom of the box body, and support legs are disposed around the bottom of the damping base.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the application provides a screening device for barite powder production, which comprises a box body, a hopper, a first screening device, a second screening device and a rotary screening device, wherein the box body can provide a relatively closed screening environment for screening barite powder, so that the barite powder is prevented from floating in the air in the screening process, and the influence on the health of personnel is avoided; hopper and box intercommunication, be convenient for add the barite powder in the box through the hopper, from last to being equipped with first screening plant down in proper order in the box, second screening plant and rotatory screening plant, thereby screen the barite powder step by step, can improve the screening quality of barite powder, also can reduce the load wearing and tearing that single screening plant received, extension fixture's life, rotatory screening plant is when screening, can utilize self to rotate the revolving force that produces, drive barite powder and rotatory screening plant take place relative motion, thereby effectively screen the barite powder, the qualified barite powder of screening then can flow from the discharge gate of bottom half, accomplish the screening process of barite powder.

First screening plant one side is equipped with first clearance subassembly, can clear out the large granule powder piece that first screening plant was selected, prevent that the large granule powder piece from piling up on first screening plant, thereby cause first screening plant to block up, influence first screening plant's screening efficiency, second screening plant one side is equipped with the second clearance subassembly, can clear out the large granule powder piece that second screening plant was selected, prevent that the large granule powder piece from piling up on second screening plant, thereby cause second screening plant to block up, influence second screening plant's screening efficiency, rotary screening plant one side is equipped with the third clearance subassembly, can clear out the large granule powder piece that rotary screening plant was selected, prevent that the large granule powder piece from piling up on rotary screening plant, thereby cause rotary screening plant to block up, influence rotary screening plant's screening efficiency, the screening plant of each grade all is equipped with independent clearance subassembly, can distinguish the large granule powder piece that sieves, thereby send into different regions and reprocess, it is accurate, can effectual improvement work efficiency.

When using, add the blanc fixe that needs the screening in to the box through the hopper, blanc fixe is under the effect of gravity, at first sieve through first screening plant and second screening plant step by step, progressively improve the screening quality of blanc fixe, then fall into rotatory screening plant at last, then rotate the screening through rotatory screening plant, thereby sieve out the blanc fixe fast, then make qualified blanc fixe discharge gate discharge from, and those unqualified large granule powder pieces, then can be through corresponding first clearance subassembly, second clearance subassembly and third clearance subassembly clearance come out, avoid influencing screening work next time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 1;

fig. 4 is a schematic structural diagram of a baffle in an embodiment of the invention.

Icon: 1-box, 2-hopper, 21-blanking valve, 3-first screening device, 31-first filter screen, 32-first vibrating device, 33-baffle, 34-first outlet, 4-first cleaning component, 5-second screening device, 51-conical funnel, 52-ultrasonic level sensor, 53-second vibrating device, 54-second filter screen, 6-second cleaning component, 61-first pump, 62-first pipeline, 621-first valve, 63-second pipeline, 7-rotary screening device, 71-mounting rack, 72-annular filter screen, 73-driving device, 74-mounting block, 75-weight sensor, 76-second valve, 8-third cleaning component, 81-second pump, 82-third pipeline, 83-fourth pipeline, 84-driving piece, 9-inclined plate, 10-third vibrating device, 11-damping base, 12-supporting leg, 13-discharge port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 4, the present embodiment provides a screening device for barite powder production, which includes a box 1, a hopper 2, a first screening device 3, a second screening device 5 and a rotary screening device 7, wherein the hopper 2 is disposed on the box 1, the hopper 2 is communicated with the inside of the box 1, the first screening device 3, the second screening device 5 and the rotary screening device 7 are sequentially disposed in the box 1 from top to bottom, the first screening device 3 is obliquely disposed in the box 1, and a discharge port 13 is disposed at the bottom of the box 1; above-mentioned first screening plant 3 one side is equipped with the first clearance subassembly 4 that is used for the clearance large granule powder piece of selecting, and above-mentioned second screening plant 5 one side is equipped with the second clearance subassembly 6 that is used for the clearance large granule powder piece of selecting, and above-mentioned rotary screen 7 one side is equipped with the third clearance subassembly 8 that is used for the clearance large granule powder piece of selecting.

In this embodiment, the box body 1 can provide a relatively closed screening environment for screening barite powder, so as to avoid the barite powder from floating in the air during screening, thereby affecting the health of personnel; hopper 2 and box 1 intercommunication, be convenient for add the barite powder through hopper 2 in the box 1, be equipped with first screening plant 3 from last to down in proper order in the box 1, second screening plant 5 and rotatory screening plant 7, thereby screen the barite powder step by step, can improve the screening quality of barite powder, also can reduce the load wearing and tearing that single screening plant received, extension fixture's life, rotatory screening plant 7 is when the screening, can utilize self to rotate the revolving force that produces, drive barite powder and rotatory screening plant 7 take place relative motion, thereby effectively screen the barite powder, the qualified barite powder of screening then can flow out from the discharge gate 13 of box 1 bottom, accomplish the screening process of barite powder.

First screening plant 3 one side is equipped with first clearance subassembly 4, can clear up out the large granule powder piece that first screening plant 3 was selected, prevent that the large granule powder piece from piling up on first screening plant 3, thereby cause first screening plant 3 to block up, influence the screening efficiency of first screening plant 3, second screening plant 5 one side is equipped with second clearance subassembly 6, can clear up out the large granule powder piece that second screening plant 5 was selected, prevent that the large granule powder piece from piling up on second screening plant 5, thereby cause second screening plant 5 to block up, influence the screening efficiency of second screening plant 5, rotary screening plant 7 one side is equipped with third clearance subassembly 8, can clear up the large granule powder piece that rotary screening plant 7 was selected, prevent that the large granule powder piece from piling up on rotary screening plant 7, thereby cause rotary screening plant 7 to block up, influence rotary screening plant 7's screening efficiency, the screening device of each grade all is equipped with independent clearance subassembly, can carry out the large granule powder piece that divides, thereby prevent that the large granule powder piece from piling up on rotary screening, thereby the region of difference is sent into, can improve effectual classification efficiency.

When using, add the blanc fixe that needs the screening through hopper 2 in to box 1, blanc fixe is under the effect of gravity, at first sieve through first screening plant 3 and second screening plant 5 and sieve step by step, progressively improve the screening quality of blanc fixe, then fall into rotatory screening plant 7 at last, then rotate the screening through rotatory screening plant 7, thereby sieve out the blanc fixe fast, then make qualified blanc fixe discharge from discharge gate 13, and those unqualified large granule powder pieces, then can be through corresponding first clearance subassembly 4, second clearance subassembly 6 and third clearance subassembly 8 clear up out, avoid influencing screening work next time.

In some embodiments of the present embodiment, a discharge valve 21 is disposed at the lower end of the hopper 2, and the discharge valve 21 can control the discharge speed of the barite powder and also can perform a sealing function, so that the barite powder can be screened in the box 1 to prevent the barite powder from escaping.

Further, in some embodiments of the present invention, the first screening device 3 includes a first vibration device 32 and a first filter 31, the first filter 31 is obliquely disposed in the box 1, and the first vibration device 32 is disposed at the bottom of the first filter 31; the first cleaning assembly 4 includes a cleaning duct, a first outlet 34 is provided at a lower end of the first filter 31 on a side wall of the housing 1, and the cleaning duct communicates with the first outlet 34.

In the embodiment, first filter screen 31 inclines to locate in box 1, can increase the filtration screening area on the one hand, on the other hand makes the blanc fixe roll along first filter screen 31 under the effect of gravity, thereby screen qualified blanc fixe, and unqualified blanc fixe then can roll down along first filter screen 31, then roll out from first export 34, and go out through clearing up the pipeline screening, in addition first filter screen 31's bottom still is equipped with first vibrator 32, can shake first filter screen 31 through first vibrator 32, avoid the blanc fixe to block up first filter screen 31's mesh, and the filtering effect is improved.

Specifically, the first vibration device 32 may be a commercially available vibration motor, and has a mature technology and is convenient to use.

In some embodiments of the present invention, a plurality of baffles 33 are disposed above the first filter 31 along an inclined direction of the first filter 31, and the plurality of baffles 33 are connected to an inner top wall of the cabinet 1; a plurality of baffles 33 can block the barite powder, prevent that the barite powder unloading is too fast, pile up together to appear not having just rolling out from first export 34 through the screening phenomenon, guarantee the screening effect of barite powder.

Further, in some embodiments of the present invention, the top view structure of any one of the baffles 33 is a V-shape, two sides of the baffle 33 are respectively inclined downward toward two sides along the stone powder rolling direction, so that the stacked barite powder can be better dispersed, and the bottom of any one of the baffles 33 is a saw-tooth structure, so that the barite powder can be further scattered, and the barite powder can be sufficiently screened by the first filter screen 31, thereby improving the screening efficiency.

In some embodiments of the present invention, the second screening device 5 includes an ultrasonic level sensor 52, a conical funnel 51 and a second vibrating device 53 disposed on a side wall of the conical funnel 51, the conical funnel 51 is disposed in the box body 1, a second filter 54 is disposed at a bottom of the conical funnel 51, the ultrasonic level sensor 52 is disposed on an upper portion of an inner wall of the conical funnel 51, a first cleaning port is disposed on a side wall of the conical funnel 51, and the first cleaning port is communicated with the second cleaning assembly 6.

In the above embodiment, conical hopper 51 is used for holding the barite powder that first filter screen 31 filtered, then sieve once more through the second filter screen 54 of bottom and filter, guarantee the screening quality of barite powder, the lateral wall of conical hopper 51 is located to second vibrator 53, can vibrate conical hopper 51 through second vibrator 53, and then break up the barite powder in conical hopper 51, improve the screening efficiency, in addition, ultrasonic wave level sensor 52 locates conical hopper 51's inner wall upper portion, can real-time measurement the barite powder splendid attire volume in conical hopper 51, when detecting the barite powder splendid attire volume in conical hopper 51 and surpassing the setting value, just can the signals, remind the user of service pause to feed in raw material, avoid equipment overload work, guarantee the life of equipment.

Conical hopper 51's lateral wall is equipped with first clearance mouth, is convenient for and second clearance subassembly 6 intercommunication to after the screening is accomplished, through the large granule powder piece that sieves on the second clearance subassembly 6 clearance second filter screen 54, guarantee the cleanliness factor on the second filter screen 54, avoid influencing next use.

Specifically, the second vibration device 53 may be a commercially available vibration motor, which is reliable in quality and convenient to purchase.

In some embodiments of the present invention, the second cleaning assembly 6 includes a first pump 61, a first pipe 62 and a second pipe 63, the first pump 61 is disposed on an outer wall of the tank 1, one end of the first pipe 62 is communicated with an inlet end of the first pump 61, the other end of the first pipe 62 extends into the tank 1 to be communicated with the first cleaning opening, a first valve 621 is disposed at a connection position of the first pipe 62 and the first cleaning opening, and the second pipe 63 is disposed at an outlet end of the first pump 61.

In the above embodiment, the first suction pump 61 can generate suction force, and the first pipe 62 communicates the first suction pump 61 with the conical funnel 51, so that the first suction pump 61 can clean the large granular powder lumps filtered by the second filter 54, and then discharge the large granular powder lumps through the second pipe 63, and the cleaning is simple and convenient, and the using effect is good.

First pipeline 62 is equipped with first valve 621 with the junction of first clearance mouth, can be used for controlling first pipeline 62's intercommunication through first valve 621, when screening the barite powder, first valve 621 is closed, prevent that the barite powder that does not screen from overflowing from first clearance mouth, after the barite powder screening is accomplished, second valve 76 is opened, make first pipeline 62 and first clearance mouth intercommunication, thereby make second suction pump 81 can be with the suction of filterable large granule powder piece on the second filter screen 54.

Specifically, the first suction pump 61 may be a commercially available suction pump for sucking solid particles.

In some embodiments of the present invention, the rotary screening device 7 includes a mounting bracket 71, an annular filter screen 72 and a driving device 73, the mounting bracket 71 is fixedly disposed on the inner wall of the box body 1, a mounting block 74 is disposed at the bottom of the annular filter screen 72, a weight sensor 75 is disposed between the mounting block 74 and the annular filter screen 72, the annular filter screen 72 is rotatably connected to the mounting bracket 71 through the mounting block 74, the top of the annular filter screen 72 abuts against the bottom of the conical hopper 51, the driving device 73 is disposed at the bottom of the box body 1, and a power shaft of the driving device 73 penetrates through the box body 1 and is in transmission connection with the annular filter screen 72; a second cleaning port is further formed in a side wall of the annular filter 72, and a second valve 76 is disposed at the second cleaning port, and the second cleaning port is communicated with the third cleaning assembly 8.

In the above embodiment, the mounting frame 71 is fixedly arranged on the inner wall of the box body 1, and can provide support for the annular filter screen 72, the bottom of the annular filter screen 72 is provided with the mounting block 74, which can be used for mounting the annular filter screen 72 on the mounting frame 71, and enabling the annular filter screen 72 to rotate on the mounting frame 71, in addition, the mounting block 74 is also provided with the weight sensor 75, which can measure the weight of the barite powder contained in the annular filter screen 72, when the weight sensor 75 detects that the content of the barite powder in the annular filter screen 72 exceeds a set value, a signal is sent out to remind a user to suspend feeding, so that overload work of the equipment is avoided, the service life of the equipment is ensured, the top of the annular filter screen 72 is abutted against the bottom of the conical funnel 51, so that all the barite powder screened by the conical funnel 51 falls into the annular filter screen 72, and waste caused by throwing of the barite powder in the annular filter screen 72 is also avoided; third clearance subassembly 8 and the second clearance mouth intercommunication on the ring screen 72, can accomplish the back at the barite powder screening, will select unqualified barite powder piece to clear away, second clearance mouth department is equipped with second valve 76, during the screening, second valve 76 is in the closed condition, can guarantee ring screen 72's seal, avoid the barite powder to throw away, after the screening is accomplished, second valve 76 is opened, make the second clearance mouth intercommunication on third clearance subassembly 8 and the ring screen 72, accomplish the clearance work.

When screening, drive arrangement 73 drives annular filter screen 72 and rotates, and the blanc fixe that falls into annular filter screen 72 then can be extrusion collision each other under the effect of rotatory power, also avoid the blanc fixe to pile up together, thereby improve the screening effect of blanc fixe, select qualified blanc fixe then can fall into the bottom of box 1 and then discharge from discharge gate 13, and the unqualified blanc fixe of screening then can be cleared up away through third clearance subassembly 8, avoid influencing the screening use of next time.

In some embodiments of the present embodiment, the driving device 73 may be a commercially available speed reduction motor, which has reliable quality and is convenient to use.

In some embodiments of the present invention, the third cleaning assembly 8 includes a second pump 81, a third pipe 82 and a fourth pipe 83, one end of the third pipe 82 is communicated with the inlet end of the second pump 81, the other end of the third pipe 82 extends into the tank 1, a driving member 84 for driving the third pipe 82 to extend and retract is disposed in the tank 1, and the fourth pipe 83 is disposed at the outlet end of the second pump 81; during screening, the annular filter screen 72 rotates, and the driving member 84 drives the third pipeline 82 to move away from the second cleaning port; during cleaning, the driving member 84 drives the third pipeline 82 to communicate with the second cleaning port, so that the second pump 81 cleans the large granular powder lumps screened by the annular filter screen 72.

In the above embodiment, the second suction pump 81 can generate suction force, the third pipeline 82 communicates the second suction pump 81 with the annular filter screen 72, so that the second suction pump 81 can clean large granular powder lumps filtered on the annular filter screen 72, and then discharge the large granular powder lumps through the fourth pipeline 83, the cleaning is simple and convenient, the using effect is good, and in addition, the driving member 84 is arranged on the inner side of the box body 1 and can be used for driving the third pipeline 82 to communicate with and separate from the annular filter screen 72.

During screening, the driving device 73 drives the annular filter screen 72 to rotate, the driving member 84 drives the third pipeline 82 to move away from the second cleaning port, and the second valve 76 is closed; after annular filter screen 72 finishes screening the blanc fixe, when needing to clear up, drive arrangement 73 can drive annular filter screen 72 and stop at predetermined position, makes second clearance mouth aim at third pipeline 82, then above-mentioned driving piece 84 drives above-mentioned third pipeline 82 and above-mentioned second clearance mouth intercommunication, then opens second valve 76, makes above-mentioned second suction pump 81 can clear up the large granule powder piece that above-mentioned annular filter screen 72 was selected, and is simple to use convenient.

In some embodiments of this embodiment, the second pump 81 may be a commercially available pump for pumping solid particles, and the driving member 84 may be a commercially available air cylinder or an electric push rod, which is good in use effect.

In some embodiments of the present invention, an inclined plate 9 is disposed at the bottom of the box body 1, the bottom end of the inclined plate 9 abuts against the discharge port 13, and a third vibration device 10 is disposed at the bottom of the inclined plate 9.

In the above-mentioned embodiment, the hang plate 9 can be so that the barite powder that falls into the bottom of box 1 rolls away under the effect of gravity, then discharges from discharge gate 13, and third vibrator 10 also can vibrate hang plate 9 in addition for the barite powder can be discharged fast, avoids piling up in the bottom of box 1, improves discharge rate, excellent in use effect.

Specifically, the third vibration device 10 may be a commercially available vibration motor, which has reliable quality and is convenient to purchase.

In some embodiments of the present invention, a damping base 11 is further disposed at the bottom of the box body 1, and support legs 12 are disposed around the bottom of the damping base 11.

In the above-mentioned embodiment, the bottom of box 1 is equipped with vibration damping mount 11, can improve the shock attenuation effect of box 1 for box 1 is more stable when sieving the blanc fixe, excellent in use effect, and vibration damping mount 11's bottom is equipped with supporting leg 12 all around in addition, can be used for supporting vibration damping mount 11 and box 1.

In summary, an embodiment of the present invention provides a screening device for producing barite powder, including a box 1, a hopper 2, a first screening device 3, a second screening device 5, and a rotary screening device 7, wherein the hopper 2 is disposed on the box 1, the hopper 2 is communicated with the inside of the box 1, the first screening device 3, the second screening device 5, and the rotary screening device 7 are sequentially disposed in the box 1 from top to bottom, the first screening device 3 is obliquely disposed in the box 1, and a discharge port 13 is disposed at the bottom of the box 1; above-mentioned 3 one sides of first screening plant are equipped with the first clearance subassembly 4 that is used for clearing up the large granule powder piece of selecting, and 5 one sides of above-mentioned second screening plant are equipped with the second clearance subassembly 6 that is used for clearing up the large granule powder piece of selecting, and 7 one sides of above-mentioned rotatory screening plant are equipped with the third clearance subassembly 8 that is used for clearing up the large granule powder piece of selecting.

First screening plant 3 one side is equipped with first clearance subassembly 4, can clear up out the large granule powder piece that first screening plant 3 was selected, prevent that the large granule powder piece from piling up on first screening plant 3, thereby cause first screening plant 3 to block up, influence the screening efficiency of first screening plant 3, second screening plant 5 one side is equipped with second clearance subassembly 6, can clear up out the large granule powder piece that second screening plant 5 was selected, prevent that the large granule powder piece from piling up on second screening plant 5, thereby cause second screening plant 5 to block up, influence the screening efficiency of second screening plant 5, rotary screening plant 7 one side is equipped with third clearance subassembly 8, can clear up the large granule powder piece that rotary screening plant 7 was selected out, prevent that the large granule powder piece from piling up on rotary screening plant 7, thereby cause rotary screening plant 7 to block up, influence rotary screening plant 7's screening efficiency, the screening device of each grade all is equipped with independent clearance subassembly, can distinguish the large granule powder piece that separates out, thereby send into different regions and carry out reprocessing, can improve effectual categorised work efficiency, accurate classification.

When the screening machine is used, the barite powder needing to be screened is added into the box body 1 through the hopper 2, the barite powder is screened step by step through the first screening device 3 and the second screening device 5 under the action of gravity, the screening quality of the barite powder is gradually improved, the barite powder finally falls into the rotary screening device 7, the rotary screening device 7 is used for rotating and screening, the barite powder is screened out rapidly, qualified barite powder is discharged from the discharge port 13, unqualified large-particle powder blocks can be cleaned out through the corresponding first cleaning component 4, the second cleaning component 6 and the third cleaning component 8, and the influence on the next screening work is avoided.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The screening device for producing the barite powder is characterized by comprising a box body, a hopper, a first screening device, a second screening device and a rotary screening device, wherein the hopper is arranged on the box body and communicated with the inside of the box body;

first screening plant one side is equipped with the first clearance subassembly that is used for clearing up the large granule powder piece of selecting, second screening plant one side is equipped with the second clearance subassembly that is used for clearing up the large granule powder piece of selecting, rotatory screening plant one side is equipped with the third clearance subassembly that is used for clearing up the large granule powder piece of selecting.

2. The screening device for barite powder production as claimed in claim 1, wherein the first screening device comprises a first vibrating device and a first filter screen, the first filter screen is obliquely arranged in the box body, and the first vibrating device is arranged at the bottom of the first filter screen;

the first cleaning assembly comprises a cleaning pipeline, a first outlet is formed in the position, located at the lower end of the first filter screen, of the side wall of the box body, and the cleaning pipeline is communicated with the first outlet.

3. The screening device for barite powder production as claimed in claim 2, wherein a plurality of baffles are arranged above the first filter screen along the inclined direction of the first filter screen, and the baffles are connected with the inner top wall of the box body.

4. The screening device for barite powder production as claimed in claim 3, wherein the top view structure of any one of the baffles is V-shaped, two sides of the baffle are respectively arranged obliquely downwards towards two sides along the direction in which the stone powder rolls down, and the bottom of any one of the baffles is of a sawtooth structure.

5. The screening device for barite powder production as claimed in claim 1, wherein the second screening device comprises an ultrasonic level sensor, a conical funnel and a second vibrating device arranged on a side wall of the conical funnel, the conical funnel is arranged in the box, a second filter screen is arranged at the bottom of the conical funnel, the ultrasonic level sensor is arranged on the upper portion of the inner wall of the conical funnel, a first cleaning port is arranged on the side wall of the conical funnel, and the first cleaning port is communicated with the second cleaning component.

6. The screening device for barite powder production as claimed in claim 5, wherein said second cleaning assembly includes a first pump, a first pipe and a second pipe, said first pump is disposed on the outer wall of said box, one end of said first pipe is communicated with the inlet end of said first pump, the other end of said first pipe extends into said box and is communicated with said first cleaning port, a first valve is disposed at the connection of said first pipe and said first cleaning port, and said second pipe is disposed at the outlet end of said first pump.

7. The screening device for barite powder production as claimed in claim 5, wherein the rotary screening device comprises a mounting frame, an annular filter screen and a driving device, the mounting frame is fixedly arranged on the inner wall of the box body, a mounting block is arranged at the bottom of the annular filter screen, a weight sensor is arranged between the mounting block and the annular filter screen, the annular filter screen is rotatably connected with the mounting frame through the mounting block, the top of the annular filter screen abuts against the bottom of the conical hopper, the driving device is arranged at the bottom of the box body, and a power shaft of the driving device penetrates through the box body and is in transmission connection with the annular filter screen;

8. The screening device for barite powder production as claimed in claim 7, wherein said third cleaning assembly includes a second pump, a third pipeline and a fourth pipeline, said second pump is disposed on the outer wall of said box, one end of said third pipeline is communicated with the inlet end of said second pump, the other end of said third pipeline extends into said box, a driving member for driving said third pipeline to extend and retract is disposed in said box, and said fourth pipeline is disposed at the outlet end of said second pump;

during screening, the annular filter screen rotates, and the driving piece drives the third pipeline to be far away from the second cleaning port; when the clearance, the driving piece drives the third pipeline with second clearance mouth intercommunication makes the second pump clearance the large granule powder piece that annular filter screen was selected.

9. The screening device for barite powder production as claimed in claim 1, wherein an inclined plate is provided at the bottom of the box, the bottom end of the inclined plate abuts against the discharge port, and a third vibrating device is provided at the bottom of the inclined plate.

10. The screening device for barite powder production as claimed in claim 1, wherein a vibration damping mount is further provided at the bottom of the box body, and support legs are provided around the bottom of the vibration damping mount.