CN218973809U

CN218973809U - Filtering detection device

Info

Publication number: CN218973809U
Application number: CN202222600902.1U
Authority: CN
Inventors: 窦东阳; 刘文统; 沈宁; 朱长勇; 杨永峰; 刘建军; 马红; 李志慧; 陈龙; 景治
Original assignee: China University of Mining and Technology CUMT; National Energy Group Ningxia Coal Industry Co Ltd
Current assignee: China University of Mining and Technology CUMT; National Energy Group Ningxia Coal Industry Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-05-05
Anticipated expiration: 2032-09-29

Abstract

The utility model provides a filtering detection device, comprising: the inlet of the centrifugal liquid diversion pipeline is used for being connected with a centrifugal liquid outlet of the centrifugal machine; the outlet of the centrifugal liquid diversion pipeline is connected with the filtering component; and the weight detection component is connected with at least part of the filter assembly to judge the coarse running state of the centrifugal machine by detecting the weight change of at least part of the filter assembly. The utility model solves the problem that the coarse degree of the centrifugal machine is difficult to detect in the prior art.

Description

Filtering detection device

Technical Field

The utility model relates to the field of centrifuge detection, in particular to a filtering detection device.

Background

A filter centrifuge refers to a centrifuge that separates components in suspension using a centrifugal filtration method. There are a plurality of screen holes on the screen basket wall of the filter centrifuge. The suspension liquid added into the screen basket rotates together with the screen basket to generate huge centrifugal pressure, liquid and fine particles in the suspension liquid are thrown out through the screen holes on the screen basket wall under the action of the pressure, and coarse particles are trapped on the inner surface of the screen basket, so that the separation of solids and liquid is realized.

The mining centrifugal machine can realize the automation of feeding and discharging in the coal preparation plant, and finally realize the automatic control of the whole coal preparation plant. The method is widely applied to dewatering of clean coal and middling coal in coal preparation plants, the dewatering effect directly influences the recovery of subsequent slime, after long-time use, materials wash a sieve basket for a long time, sieve mesh abrasion is increased, part of coarse particles enter centrifugal liquid, namely, coarse particles run out, when the coarse particles run out of the centrifugal machine seriously, a slime water system is deteriorated, great burden is brought to subsequent slime water treatment, the slime recovery cost is greatly increased, even the environmental protection event is caused by overflow of slime water, bad influence is brought to production, and extra workload is caused.

In addition, the coarse run of the centrifugal machine directly leads to the waste of clean coal, and seriously influences the economic benefit of enterprises. At present, no corresponding detection method and device are available for detecting the coarse run of the centrifugal machine, and field personnel are required to open the cover by experience to visually detect the coarse run of the centrifugal machine during overhauling, so that manpower and material resources are consumed, the cost is high, the working environment of workers is poor, and meanwhile, certain dangers are associated.

Disclosure of Invention

The utility model mainly aims to provide a filtering and detecting device which is used for solving the problem that the coarse degree of a centrifugal machine is difficult to detect in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a filtering detection device comprising: the inlet of the centrifugal liquid diversion pipeline is used for being connected with a centrifugal liquid outlet of the centrifugal machine; the outlet of the centrifugal liquid diversion pipeline is connected with the filtering component; and the weight detection component is connected with at least part of the filter assembly to judge the coarse running state of the centrifugal machine by detecting the weight change of at least part of the filter assembly.

Further, the filter assembly includes: the outlet of the centrifugal liquid diversion pipeline is connected with the first filtering component, the first filtering component is provided with a filtering structure, a third outlet and a first outlet which are arranged independently, after the centrifugal liquid in the filtering cavity of the first filtering component is filtered by the filtering structure, the liquid and the fine particles are discharged out of the first filtering component through the third outlet, and the coarse particles in the centrifugal liquid are left in the first filtering component and flow out through the first outlet; a second filter member having an inlet communicating with the first discharge port of the first filter member to collect coarse particles discharged from the first discharge port; wherein the weight detecting member is connected with the second filter member to detect a weight change of the second filter member.

Further, the second filter member has a second bottom plate and a second discharge port, the second bottom plate is openably and closably provided at the second discharge port, and a second filter screen is provided on the second bottom plate.

Further, the filtering detection device further includes: a discharge operation member connected to the second bottom plate to operate the second bottom plate to open or close the second discharge port by the discharge operation member; and the control part is respectively connected with the weight detection part and the discharging operation part so as to control the discharging operation part to act according to the weight information detected by the weight detection part.

Further, the filtering detection device further comprises a bracket, wherein the control component is arranged on the bracket; and/or the weight detecting component is arranged on the bracket, and the second filtering component is hung on the weight detecting component; and/or the discharging operation part is provided with a limiting part, and the limiting part is movably arranged to limit the second bottom plate at a position for closing the second discharging opening through the limiting part or release the second bottom plate to open the second discharging opening.

Further, the filtering detection device further includes: and the transmission rod is connected with the second bottom plate, and the position of the transmission rod is adjustably arranged to drive the second bottom plate to open or close the second discharge port.

Further, the filtering detection device further comprises a flushing pipeline, and a water outlet of the flushing pipeline is communicated with the filter cavity of the first filter component so as to spray cleaning liquid into the filter cavity of the first filter component.

Further, the water outlet of the flushing pipeline extends into the filter cavity of the first filter component from the first outlet; and/or the spraying direction of the water outlet of the flushing pipeline and the spraying direction of the outlet of the centrifugal liquid diversion pipeline are mutually inclined.

Further, the filter structure is provided on the first bottom plate of the first filter member and/or on a side wall opposite to the first discharge port; and/or the outlet of the centrifugal liquid diversion pipeline is vertically downward; and/or the first bottom plate of the first filter element is arranged obliquely to the horizontal plane.

Further, the filtering detection device further includes: the alarm component is used for giving out an audible signal alarm and/or an optical signal alarm; and the control part is respectively connected with the weight detection part and the alarm part so as to control the alarm part to send out an alarm instruction according to the weight information detected by the weight detection part.

By applying the technical scheme of the utility model, the filtering and detecting device comprises a centrifugate diversion pipeline, a filtering component and a weight detecting component, wherein the inlet of the centrifugate diversion pipeline is used for being connected with the centrifugate outlet of the centrifugal machine; the outlet of the centrifugal liquid diversion pipeline is connected with the filtering component; the weight detection part is connected with at least part of filter unit to judge the thick state of running of centrifuge through detecting the weight variation of at least part of filter unit, this application detects the weight of the thick granule of centrifugate behind the filtration in the filter unit through weight detection part, and judges whether filter unit runs thick according to the weight in the filter unit, in order to solve the problem that is difficult to detect the thick degree of running of centrifuge among the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic overall structure of an embodiment of a filtering detection device according to the present utility model.

Wherein the above figures include the following reference numerals:

10. a centrifugate diversion pipeline; 20. a filter assembly; 30. a weight detecting section; 21. a first filter member; 210. a first discharge port; 22. a second filter member; 220. a second base plate; 221. a second discharge port; 40. a discharging operation member; 50. a control part; 100. a bracket; 200. a transmission rod; 60. flushing the pipeline; 70. an alarm part; 80. a vibration member.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1, the present utility model provides a filtering detection device, including: the centrifugal liquid diversion pipeline 10, the inlet of the centrifugal liquid diversion pipeline 10 is used for being connected with the centrifugal liquid outlet of the centrifugal machine; the outlet of the centrifugal liquid diversion pipeline 10 is connected with the filter assembly 20; weight detecting means 30, the weight detecting means 30 is connected with at least a portion of the filter assembly 20 to judge the run-out state of the centrifuge by detecting a weight change of at least a portion of the filter assembly 20.

The filtering and detecting device comprises a centrifugate diversion pipeline 10, a filtering component 20 and a weight detecting component 30, wherein the inlet of the centrifugate diversion pipeline 10 is used for being connected with the centrifugate outlet of a centrifugal machine; the outlet of the centrifugal liquid diversion pipeline 10 is connected with the filter assembly 20; the weight detection part 30 is connected with at least part of the filter component 20 to judge the thick state of running of centrifuge through detecting the weight variation of at least part of the filter component 20, the application detects the weight of the thick granule of centrifugal liquid after filtering in the filter component 20 through the weight detection part 30, and judges whether the filter component 20 runs thick according to the weight in the filter component 20, in order to solve the problem that the thick degree of running to centrifuge among the prior art is difficult to detect.

In an embodiment of the present utility model, the filter assembly 20 includes: the outlet of the centrifugal liquid diversion pipeline 10 is connected with the first filter part 21, the first filter part 21 is provided with a filter structure, a third discharge port and a first discharge port 210 which are arranged independently, after the centrifugal liquid in the filter cavity of the first filter part 21 is filtered by the filter structure, the liquid and the fine particles are discharged to the outer side of the first filter part 21 through the third discharge port, and coarse particles in the centrifugal liquid are remained in the first filter part 21 and flow out through the first discharge port 210; a second filter member 22, an inlet of the second filter member 22 being in communication with the first discharge port 210 of the first filter member 21 to collect coarse particles discharged from the first discharge port 210; wherein the weight detecting part 30 is connected to the second filter part 22 to detect a weight change of the second filter part 22. Thus, the present utility model avoids the failure of the device due to clogging of the second filter element 22 by employing a two-stage filtration.

Specifically, the filter structure of the first filter member 21 is a first filter mesh, which is provided around the inner wall surface of the first filter member 21. Wherein, first filter screen has a plurality of 5 mm's sieve mesh.

Specifically, the second filter member 22 has a second bottom plate 220 and a second discharge port 221, the second bottom plate 220 is openably and closably provided at the second discharge port 221, and a second filter screen is provided on the second bottom plate 220.

Specifically, the filtering detection device further includes: a discharge operation part 40, the discharge operation part 40 being connected with the second bottom plate 220 to open or close the second discharge outlet 221 by operating the second bottom plate 220 through the discharge operation part 40; and a control unit 50, wherein the control unit 50 is connected to the weight detecting unit 30 and the discharging operation unit 40, respectively, so as to control the operation of the discharging operation unit 40 according to the weight information detected by the weight detecting unit 30.

Specifically, the filtering detection device further includes a bracket 100, wherein the control part 50 is mounted on the bracket 100; and/or the weight detecting member 30 is mounted on the bracket 100, and the second filter member 22 is hung on the weight detecting member 30; and/or the discharge operation member 40 has a stopper movably provided to stop the second bottom plate 220 at a position closing the second discharge port 221 by the stopper, or to release the second bottom plate 220 to open the second discharge port 221.

Specifically, the discharging operation component 40 is connected with the second bottom plate 220 and is connected with the control component 50, when the weight detection component 30 detects that the weight exceeds a certain threshold, the control component 50 controls the limiting portion of the discharging operation component 40 to act so as to open the second bottom plate 220, so that the discharging is emptied, detection errors caused by overfilling in the second filtering component 22 are avoided, manual discharging is avoided, and time and labor are saved.

Specifically, the second filter member 22 is a filter screen cylinder for receiving coarse particles in the centrifugal liquid after the first filtering, and the filter screen cylinder is vertically hung on the weight detecting member 30, so that the gravity direction of the filter screen cylinder is perpendicular to the weight detecting member 30, so as to prevent the filter screen cylinder from generating component force in other directions to affect the detection result.

Specifically, the second filter member 22 is rigidly connected to the weight detecting member 30.

Specifically, the control section 50 includes a controller and a computer. The controller is mounted on a stand 100.

Before use, the weight detecting member 30 is cleared after the second filter member 22 is attached to the weight detecting member 30. During the detection, the collected weight signal is transmitted to a computer (control part 50) every predetermined period of time.

Specifically, the filtering detection device further includes: and a driving lever 200, the driving lever 200 being connected to the second bottom plate 220, the driving lever 200 being adjustably positioned to drive the second bottom plate 220 to open or close the second discharge port 221.

Specifically, the transmission lever 200 is rotatably provided on the second bottom plate of the second filter member 22; and/or the transfer lever 200 includes a first transfer lever segment and a second transfer lever segment that are telescopically disposed therebetween.

In the embodiment of the present application, the filtering and detecting device further includes a flushing pipe 60, and a water outlet of the flushing pipe 60 is communicated with the filter cavity of the first filter member 21, so as to spray the cleaning liquid into the filter cavity of the first filter member 21.

Specifically, the water outlet of the flushing pipe 60 extends from the first outlet 210 into the filter chamber of the first filter element 21; and/or the spraying direction of the water outlet of the flushing pipe 60 and the spraying direction of the outlet of the centrifugal liquid diversion pipe 10 are inclined to each other, so that the cleaning liquid and the centrifugal liquid meet at the same position in the first filtering part 21, and the functions of diluting and flushing the centrifugal liquid are achieved.

Optionally, the first filtering part 21 is arranged at a preset included angle with the horizontal plane, so that coarse particles in the centrifugate after being filtered move towards the second filtering part 22 under the action of gravity; alternatively, the filtering and detecting device further comprises a vibrating member 80, the vibrating member 80 is mounted on the first filtering member 21, the vibrating member 80 is located at one end of the first filtering member 21 away from the first outlet 210, and is located on a wall surface of one side of the first filtering member 21 away from the centrifugal liquid diversion pipeline, so that coarse particles in the first filtering member 21 are driven to move through vibration of the vibrating member 80.

In the embodiment of the present application, the vibration member 80 is a vibration motor.

In the case of normal operation of the centrifuge, the fine mud which is liable to be clogged and the particles of the normal size (i.e., the particles which normally pass through when the basket mesh of the centrifuge is intact) are discharged after being filtered by the first filter screen of the first filter member 21, and almost no coarse particles fall into the second filter member 22.

When the screen basket of the centrifugal machine is worn to cause the screen holes to be enlarged, and coarse particles are discharged, fine mud which is easy to block and particles with normal particle size (namely particles which normally pass through when the screen holes of the screen basket of the centrifugal machine are intact) pass through the first filter screen of the first filter component 21, and then are discharged outside the first filter component, and the coarse particles in centrifugal liquid fall into the second filter component 22 under the action of gravity or the action of exciting force of the vibrating motor, and after the coarse particles are filtered by the second filter screen, the particles in the second filter component 22 are weighed.

Since the main filtration and the flushing with the clean water are performed in the first filter element 21, coarse particles flow to the second filter element 22 after the filtering by the first filter element 21, and therefore, there is almost no disturbance of the impact force of the water flow in the second filter element 22, so that the weight detecting element 30 can accurately detect the weight of the solid particles in the second filter element 22.

Specifically, the filter structure is provided on the first bottom plate of the first filter member 21 and/or on the side wall opposite to the first discharge port 210; and/or the outlet of the centrate distribution flow line 10 is oriented vertically downward; and/or the first bottom plate of the first filter element 21 is arranged obliquely to the horizontal plane.

Alternatively, the filtering structure of the first filtering part 21 is a first filter screen, and the filtering structure (first filter screen) is arranged at the water outlet of the centrifugal liquid diversion pipeline 10; alternatively, the first filter screen is disposed on the first discharge port 210.

Specifically, the first filter mesh is disposed inside the cavity of the first filter element 21.

In the embodiment of the present application, the filtering structure includes a cuboid (cube) formed by five filtering screen surfaces, no filtering screen is disposed at the first outlet 210, each filtering screen surface is formed by a stainless steel mesh with a pore diameter of 5mm (other pore diameters may also be determined according to the actual situation on site), so as to achieve the effect of filtering the centrifugate and prevent particles in the centrifugate from splashing, where the upper filtering screen surface openings are connected with the centrifugate diversion pipeline 10 and the flushing pipeline 60; the second bottom plate 220 of the second filter member 22 is provided with a second filter screen made of a stainless steel mesh having a pore diameter of 5 mm.

Specifically, a second filter screen is also provided on the side wall within the second filter element 22.

Specifically, the filtering detection device further includes: an alarm part 70, wherein the alarm part 70 is used for giving out an audible signal alarm and/or an optical signal alarm; and a control part 50, wherein the control part 50 is respectively connected with the weight detection part 30 and the alarm part 70 so as to control the alarm part 70 to give an alarm instruction according to the weight information detected by the weight detection part 30.

In the embodiment of the present application, every predetermined time period, the computer (control unit 50) receives the weight signal in the second filtering unit 22, performs comprehensive processing on the data to eliminate measurement errors, makes a difference between the current weight value and the weight value obtained last time, and when the weight difference exceeds the first predetermined threshold value, primarily determines that the centrifuge is coarser, then controls the alarm unit 70 to send an audible and visual alarm signal to remind the staff of the fault condition; or detecting the current weight value in the second filtering component 22, and after the current weight value exceeds a second preset threshold value, primarily judging that the centrifuge is coarsened, and recording once but not alarming; when the preset threshold value is exceeded for 3 times continuously, the control alarm part 70 sends out an audible and visual alarm signal to remind the working personnel of the fault condition, and at the moment, the degree of the coarse running of the centrifugal machine can be estimated by making the difference between the current weight value and the weight value obtained last time.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the filtering and detecting device comprises a centrifugate diversion pipeline 10, a filtering component 20 and a weight detecting component 30, wherein the inlet of the centrifugate diversion pipeline 10 is used for being connected with the centrifugate outlet of a centrifugal machine; the outlet of the centrifugal liquid diversion pipeline 10 is connected with the filter assembly 20; the weight detection part 30 is connected with at least part of the filter component 20 to judge the coarse state of the centrifuge through detecting the weight change of at least part of the filter component 20, the application detects the weight of coarse particles after the centrifugal liquid is filtered in the filter component 20 through the weight detection part 30, and judges whether the centrifuge runs coarse according to the weight in the filter component 20, so that the problem that the coarse degree of the centrifuge is difficult to detect in the prior art is solved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A filtering and detecting device, comprising:

the centrifugal liquid diversion pipeline (10), the inlet of the centrifugal liquid diversion pipeline (10) is used for being connected with the centrifugal liquid outlet of the centrifugal machine;

a filter assembly (20), the outlet of the centrifugate diversion pipeline (10) is connected with the filter assembly (20);

and a weight detection component (30), wherein the weight detection component (30) is connected with at least part of the filter assembly (20) so as to judge the coarse running state of the centrifugal machine by detecting the weight change of at least part of the filter assembly (20).

2. The filtering detection device according to claim 1, wherein the filtering assembly (20) comprises:

a first filter element (21), wherein an outlet of the centrifugate diversion pipeline (10) is connected with the first filter element (21), the first filter element (21) is provided with a filter structure, a third discharge port and a first discharge port (210) which are arranged independently, after centrifugate in a filter cavity of the first filter element (21) is filtered by the filter structure, liquid and fine particles are discharged out of the first filter element (21) from the third discharge port, and coarse particles in the centrifugate are remained in the first filter element (21) and flow out from the first discharge port (210);

a second filter member (22), an inlet of the second filter member (22) being in communication with a first discharge port (210) of the first filter member (21) to collect coarse particles discharged from the first discharge port (210);

wherein the weight detecting member (30) is connected to the second filter member (22) to detect a weight change of the second filter member (22).

3. The filtering detection device according to claim 2, wherein the second filtering member (22) has a second bottom plate (220) and a second outlet (221), the second bottom plate (220) is openably and closably provided at the second outlet (221), and a second filter screen is provided on the second bottom plate (220).

4. The filtration detection device according to claim 3, further comprising:

a discharge operation member (40), the discharge operation member (40) being connected to the second bottom plate (220) to operate the second bottom plate (220) to open or close the second discharge port (221) by the discharge operation member (40);

and a control unit (50), wherein the control unit (50) is connected to the weight detection unit (30) and the discharge operation unit (40) respectively, and controls the operation of the discharge operation unit (40) based on the weight information detected by the weight detection unit (30).

5. The filtration assay device of claim 4, further comprising a support (100), wherein,

the control part (50) is mounted on the bracket (100); and/or

The weight detection component (30) is arranged on the bracket (100), and the second filter component (22) is hung on the weight detection component (30); and/or

The discharge operation member (40) has a stopper portion movably provided to restrict the second bottom plate (220) to a position closing the second discharge port (221) by the stopper portion or to release the second bottom plate (220) to open the second discharge port (221).

6. The filtration detection device according to claim 3, further comprising:

and the transmission rod (200) is connected with the second bottom plate (220), and the position of the transmission rod (200) is adjustably set so as to drive the second bottom plate (220) to open or close the second outlet (221).

7. The filtering detection device according to any one of claims 2 to 6, wherein,

the filtering detection device further comprises a flushing pipeline (60), and a water outlet of the flushing pipeline (60) is communicated with the filter cavity of the first filtering component (21) so as to spray cleaning liquid into the filter cavity of the first filtering component (21).

8. The filtering and detecting device according to claim 7, wherein,

the water outlet of the flushing pipeline (60) extends into the filter cavity of the first filter component (21) from the first outlet (210); and/or

The spraying direction of the water outlet of the flushing pipeline (60) and the spraying direction of the outlet of the centrifugal liquid diversion pipeline (10) are mutually inclined.

9. The filtering and detecting device according to claim 2, wherein,

the filter structure is arranged on a first bottom plate of the first filter element (21) and/or on a side wall opposite to the first outlet opening (210); and/or

The outlet of the centrifugal liquid diversion pipeline (10) is vertically downward; and/or

The first bottom plate of the first filter element (21) is arranged obliquely to the horizontal plane.

10. The filtering detection device of claim 1, wherein the filtering detection device further comprises:

an alarm part (70), wherein the alarm part (70) is used for giving an audible signal alarm and/or an optical signal alarm;

and a control part (50), wherein the control part (50) is respectively connected with the weight detection part (30) and the alarm part (70) so as to control the alarm part (70) to send out an alarm instruction according to the weight information detected by the weight detection part (30).