Filter detection device

Abstract

The application provides a filtering detection device, which comprises a centrifugal liquid diversion pipeline, an inlet of the centrifugal liquid diversion pipeline being used for being connected with a centrifugal liquid discharge port of a centrifugal machine; a filtering assembly, an outlet of the centrifugal liquid diversion pipeline being connected with the filtering assembly; and a weight detection component, the weight detection component being connected with at least part of the filtering assembly, so as to judge a coarse running state of the centrifugal machine by detecting a weight change of the at least part of the filtering assembly. The application solves the problem that the coarse running degree of the centrifugal machine is difficult to be detected in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of centrifuge detection, in particular to a filtering detection device. BACKGROUND

[0002] Filtering centrifuge refers to a centrifugal separator that separates components in a suspension by centrifugal filtration. There are many screen holes on the screen basket wall of the filtering centrifuge. The suspension added to the screen basket rotates with the screen basket to generate a large centrifugal pressure. Under the action of the pressure, the liquid and fine particles in the suspension flow out through the screen holes on the screen basket wall, and the coarse particles are trapped on the inner surface of the screen basket, thereby realizing the separation of solid and liquid.

[0003] The mining centrifuge can realize the automation of feeding and discharging in the coal preparation plant, and ultimately realize the automatic control of the entire coal preparation plant. It is widely used in the dewatering of clean coal and medium coal in the coal preparation plant, and the dewatering effect directly affects the subsequent coal slime recovery. After a long time of use, the screen holes are worn and enlarged due to the long-time washing of the screen basket by the material, and part of the coarse particles enter the centrifugal liquid, i.e., coarse particles run. When the centrifuge runs coarse seriously, it will cause the deterioration of the coal slime water system, bring great burden to the subsequent coal slime water treatment, greatly increase the cost of coal slime recovery, even cause the coal slime water to overflow and cause environmental protection events, and bring adverse effects to production, and cause additional workload.

[0004] In addition, the running of the centrifuge directly leads to the waste of clean coal, which seriously affects the economic benefits of the enterprise. At present, there is no corresponding detection method and device for the detection of the running of the centrifuge. The on-site personnel need to rely on experience to detect visually when overhauling, which not only consumes manpower and material resources, has high cost, and has a poor working environment for workers, and is accompanied by a certain degree of danger. SUMMARY

[0005] The main purpose of the present application is to provide a filtering detection device to solve the problem that the degree of coarse particle running of the centrifuge is difficult to detect in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a filtering detection device is provided, which comprises: a centrifugal liquid diversion pipeline, the inlet of the centrifugal liquid diversion pipeline is used to be connected with the centrifugal liquid discharge port of the centrifuge; a filtering assembly, the outlet of the centrifugal liquid diversion pipeline is connected with the filtering assembly; and a weight detection component, the weight detection component is connected with at least part of the filtering assembly to judge the running state of the centrifuge by detecting the weight change of at least part of the filtering assembly.

[0007] Further, the filtering assembly comprises: a first filtering component, the outlet of the centrifugal liquid diversion pipeline is connected with the first filtering component, the first filtering component has a filtering structure arranged separately, a third discharge outlet and a first discharge outlet, after the centrifugal liquid in the filtering cavity of the first filtering component is filtered by the filtering structure, the liquid and fine particles are discharged outside the first filtering component through the third discharge outlet, and the coarse particles in the centrifugal liquid are retained in the first filtering component and flow out through the first discharge outlet; a second filtering component, the first discharge outlet of the first filtering component is communicated with the inlet of the second filtering component to collect the coarse particles discharged through the first discharge outlet; and a weight detection component connected with the second filtering component to detect the weight change of the second filtering component.

[0008] Further, the second filtering component has a second bottom plate and a second discharge outlet, the second bottom plate is arranged at the second discharge outlet in an openable and closable manner, and a second filter screen is arranged on the second bottom plate.

[0009] Further, the filtering detection device further comprises: a discharge operation component connected with the second bottom plate to open or close the second discharge outlet by operating the second bottom plate through the discharge operation component; and a control component connected with the weight detection component and the discharge operation component respectively to control the discharge operation component to act according to the weight information detected by the weight detection component.

[0010] Further, the filtering detection device further comprises a support, wherein the control component is installed on the support; and / or the weight detection component is installed on the support, and the second filtering component is hung on the weight detection component; and / or the discharge operation component has a limiting part arranged movably to limit the second bottom plate at a position closing the second discharge outlet or release the second bottom plate to open the second discharge outlet.

[0011] Further, the filtering detection device further comprises a transmission rod connected with the second bottom plate, and the transmission rod is arranged position-adjustably to drive the second bottom plate to open or close the second discharge outlet.

[0012] Further, the filtering detection device further comprises a flushing pipeline, and a water outlet of the flushing pipeline is communicated with the filtering cavity of the first filtering component to spray cleaning liquid into the filtering cavity of the first filtering component.

[0013] Further, the water outlet of the flushing pipeline extends into the filtering cavity of the first filtering component from the first discharge outlet; and / or the spraying direction of the water outlet of the flushing pipeline is inclined to the spraying direction of the outlet of the centrifugal liquid diversion pipeline.

[0014] Further, the filtering structure is arranged on the first bottom plate of the first filtering component and / or the side wall opposite to the first discharge outlet; and / or the outlet of the centrifugal liquid diversion pipeline is vertically downward; and / or the first bottom plate of the first filtering component is arranged obliquely to the horizontal plane.

[0015] Further, the filter detection device further comprises: an alarm component, the alarm component being configured to send an acoustic signal alarm and / or an optical signal alarm; and a control component, the control component being connected with the weight detection component and the alarm component respectively, so as to control the alarm component to send an alarm indication according to the weight information detected by the weight detection component.

[0016] According to the technical scheme of the present application, the filter detection device comprises a centrifugal liquid diversion pipeline, a filter assembly and a weight detection component, the inlet of the centrifugal liquid diversion pipeline is connected with the centrifugal liquid discharge outlet of the centrifugal machine, the outlet of the centrifugal liquid diversion pipeline is connected with the filter assembly, and the weight detection component is connected with at least part of the filter assembly, so as to determine the coarse running state of the centrifugal machine by detecting the weight change of the at least part of the filter assembly. The present application detects the weight of the coarse particles of the centrifugal liquid in the filter assembly after filtration by the weight detection component, and determines whether the filter assembly is running coarse according to the weight in the filter assembly, so as to solve the problem that the coarse running degree of the centrifugal machine is difficult to be detected in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The present application is not limited by the accompanying drawings.

[0018] Figure 1 Fig. 1 shows the overall structure schematic diagram of the embodiment of the filter detection device according to the present application.

[0019] In the above drawings, the following reference signs are used:

[0020] 10, centrifugal liquid diversion pipeline; 20, filter assembly; 30, weight detection component; 21, first filter component; 210, first discharge outlet; 22, second filter component; 220, second bottom plate; 221, second discharge outlet; 40, discharge operation component; 50, control component; 100, support; 200, transmission rod; 60, flushing pipeline; 70, alarm component; 80, vibration component. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Reference should be made to Figure 1The application provides a filtering detection device, which comprises a centrifugal liquid diversion pipeline 10, an inlet of the centrifugal liquid diversion pipeline 10 being used for being connected with a centrifugal liquid discharge port of a centrifugal machine, a filtering assembly 20, an outlet of the centrifugal liquid diversion pipeline 10 being connected with the filtering assembly 20, and a weight detection component 30, the weight detection component 30 being connected with at least part of the filtering assembly 20 so as to judge a coarse running state of the centrifugal machine by detecting a weight change of the at least part of the filtering assembly 20.

[0023] The filtering detection device of the application comprises the centrifugal liquid diversion pipeline 10, the filtering assembly 20 and the weight detection component 30, the inlet of the centrifugal liquid diversion pipeline 10 being used for being connected with the centrifugal liquid discharge port of the centrifugal machine, the outlet of the centrifugal liquid diversion pipeline 10 being connected with the filtering assembly 20, and the weight detection component 30 being connected with at least part of the filtering assembly 20 so as to judge the coarse running state of the centrifugal machine by detecting the weight change of the at least part of the filtering assembly 20, the weight of the coarse particles of the centrifugal liquid in the filtering assembly 20 after filtration being detected by the weight detection component 30, and whether the filtering assembly 20 is in the coarse running state being judged according to the weight in the filtering assembly 20, so that the problem that the coarse running degree of the centrifugal machine is difficult to be detected in the prior art is solved.

[0024] In the embodiment of the application, the filtering assembly 20 comprises a first filtering component 21, the outlet of the centrifugal liquid diversion pipeline 10 being connected with the first filtering component 21, the first filtering component 21 having a separately arranged filtering structure, a third discharge port and a first discharge port 210, liquid and fine particles being discharged to the outside of the first filtering component 21 by the third discharge port after the centrifugal liquid in the filtering cavity of the first filtering component 21 is filtered by the filtering structure, coarse particles in the centrifugal liquid being left in the first filtering component 21 and flowing out by the first discharge port 210, a second filtering component 22, the inlet of the second filtering component 22 being communicated with the first discharge port 210 of the first filtering component 21 so as to collect the coarse particles discharged by the first discharge port 210, and the weight detection component 30 being connected with the second filtering component 22 so as to detect the weight change of the second filtering component 22. In this way, the application avoids the situation that the device is disabled due to the blockage of the second filtering component 22 by adopting two-stage filtration.

[0025] Specifically, the filtering structure of the first filtering component 21 is a first filtering screen, and the first filtering screen is arranged around the inner wall surface of the first filtering component 21. The first filtering screen has a plurality of 5mm screen holes.

[0026] Specifically, the second filtering component 22 has a second bottom plate 220 and a second discharge port 221, the second bottom plate 220 being arranged at the second discharge port 221 in an openable and closable mode, and a second filtering screen being arranged on the second bottom plate 220.

[0027] Specifically, the filtering detection device further comprises a discharging operating component 40 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 discharging operating component 40; and a control component 50 connected with the weight detection component 30 and the discharging operating component 40 respectively to control the discharging operating component 40 to act according to the weight information detected by the weight detection component 30.

[0028] Specifically, the filtering detection device further comprises a bracket 100, wherein the control component 50 is installed on the bracket 100; and / or the weight detection component 30 is installed on the bracket 100, and the second filtering component 22 is hung on the weight detection component 30; and / or the discharging operating component 40 has a limiting part movably arranged to limit the second bottom plate 220 at a position closing the second discharge outlet 221 or release the second bottom plate 220 to open the second discharge outlet 221 through the limiting part.

[0029] Specifically, the discharging operating component 40 is connected with the second bottom plate 220 and the control component 50, and when the weight detection component 30 detects that the weight exceeds a certain threshold, the control component 50 controls the limiting part of the discharging operating component 40 to act to open the second bottom plate 220, so as to discharge and empty, avoid detection errors caused by overfilling of the second filtering component 22, and avoid manual discharging, saving time and effort.

[0030] Specifically, the second filtering component 22 is a filtering screen cylinder for receiving coarse particles in the centrifugal liquid after the first filtering, and the filtering screen cylinder is vertically hung on the weight detection component 30 to make the gravity direction of the filtering screen cylinder perpendicular to the weight detection component 30, so as to prevent the filtering screen cylinder from generating a component force in other directions to affect the detection result.

[0031] Specifically, the second filtering component 22 is rigidly connected with the weight detection component 30.

[0032] Specifically, the control component 50 comprises a controller and a computer. The controller is installed on the bracket 100.

[0033] Before use, the second filtering component 22 is installed on the weight detection component 30, and the weight detection component 30 is set to zero. During the detection process, the collected weight signal is transmitted to the computer (control component 50) every predetermined time interval.

[0034] Specifically, the filtering detection device further comprises a transmission rod 200 connected with the second bottom plate 220, and the transmission rod 200 is adjustably arranged to drive the second bottom plate 220 to open or close the second discharge outlet 221.

[0035] Specifically, the transmission rod 200 is rotatably arranged on the second bottom plate of the second filtering component 22; and / or the transmission rod 200 comprises a first transmission rod segment and a second transmission rod segment, and the first transmission rod segment and the second transmission rod segment are telescopically arranged.

[0036] In the embodiment of the present application, the filtering detection device further comprises a flushing pipeline 60, and a water outlet of the flushing pipeline 60 is communicated with the filtering cavity of the first filtering component 21 to spray the cleaning liquid into the filtering cavity of the first filtering component 21.

[0037] Specifically, the water outlet of the flushing pipeline 60 extends into the filtering cavity of the first filtering component 21 by the first discharge port 210; and / or the spraying direction of the water outlet of the flushing pipeline 60 is inclined to the spraying direction of the outlet of the centrifugal liquid diversion pipeline 10, so that the cleaning liquid and the centrifugal liquid meet at the same place in the first filtering component 21, and the centrifugal liquid is diluted and flushed.

[0038] Optionally, the first filtering component 21 is arranged at a preset angle with the horizontal plane, so that the coarse particles in the centrifugal liquid move towards the second filtering component 22 due to the gravity of the coarse particles; or the filtering detection device further comprises a vibrating component 80, the vibrating component 80 is installed on the first filtering component 21, the vibrating component 80 is located at one end of the first filtering component 21 away from the first discharge port 210 and on the wall surface of the first filtering component 21 away from the centrifugal liquid diversion pipeline, so that the coarse particles in the first filtering component 21 are moved by the vibration of the vibrating component 80.

[0039] In the embodiment of the present application, the vibrating component 80 is a vibrating motor.

[0040] In the case that the centrifuge works normally, the fine mud which is easy to block and the particles of normal size (i.e. the particles which normally pass through the screen basket of the centrifuge when the screen holes of the centrifuge are intact) are discharged after being filtered by the first filter screen of the first filtering component 21, and almost no coarse particles fall into the second filtering component 22.

[0041] When the screen holes of the centrifuge are enlarged due to the wear of the screen basket, causing the coarse particles to run out, the fine mud which is easy to block and the particles of normal size (i.e. the particles which normally pass through the screen basket of the centrifuge when the screen holes of the centrifuge are intact) are discharged outside the first filtering component after being filtered by the first filter screen of the first filtering component 21, and the coarse particles in the centrifugal liquid fall into the second filtering component 22 under the action of gravity or the exciting force of the vibrating motor, and the coarse particles are filtered by the second filter screen to weigh the particles in the second filtering component 22.

[0042] Since the main filtration and the flushing of clean water are performed in the first filtering component 21, the flow to the second filtering component 22 is the coarse particles after the filtration of the first filtering component 21, and thus the second filtering component 22 is hardly disturbed by the water flow impact force, so that the weight detection component 30 can accurately detect the weight of the solid particles in the second filtering component 22.

[0043] Specifically, the filtering structure is arranged on the first bottom plate of the first filtering component 21 and / or the side wall opposite to the first discharge outlet 210; and / or the outlet of the centrifugal liquid diversion pipeline 10 is vertically downward; and / or the first bottom plate of the first filtering component 21 is arranged to be inclined to the horizontal plane.

[0044] Optionally, the filtering structure of the first filtering component 21 is a first filter screen, and the filtering structure (the first filter screen) is arranged at the water outlet of the centrifugal liquid diversion pipeline 10; or the first filter screen is arranged on the first discharge outlet 210.

[0045] Specifically, the first filter screen is arranged inside the cavity of the first filtering component 21.

[0046] In the embodiment of the present application, the filtering structure includes a cuboid (cubic) formed by five filter screens, and the first discharge outlet 210 is not provided with a filter screen, and each filter screen is formed by a stainless steel screen with a pore size of 5 mm (other pore sizes can also be used, which are determined according to the actual situation on site), so as to achieve the effect of filtering the centrifugal liquid and prevent the particles in the centrifugal liquid from splashing, wherein the upper filter screen is connected with the centrifugal liquid diversion pipeline 10 and the flushing pipeline 60; and the second bottom plate 220 of the second filtering component 22 is provided with a second filter screen made of a stainless steel screen with a pore size of 5 mm.

[0047] Specifically, the side wall in the second filtering component 22 is also provided with a second filter screen.

[0048] Specifically, the filtering detection device further includes an alarm component 70, the alarm component 70 is used to issue an acoustic signal alarm and / or a light signal alarm; and a control component 50, the control component 50 is connected with the weight detection component 30 and the alarm component 70 respectively, so as to control the alarm component 70 to issue an alarm instruction according to the weight information detected by the weight detection component 30.

[0049] In the embodiment of the present application, every interval of a predetermined period, the computer (control component 50) receives the weight signal in the second filtering component 22 to synthetically process the data to eliminate measurement error, and the current weight value is subtracted from the last obtained weight value, when the weight difference value exceeds the first predetermined threshold, the centrifuge is preliminarily judged to run coarse, and then the alarm component 70 is controlled to send an audible and light alarm signal to remind the staff of the fault condition; or, the current weight value in the second filtering component 22 is detected, when the current weight value exceeds the second predetermined threshold, the centrifuge is preliminarily judged to run coarse, and the record is once but not alarm; when the predetermined threshold is exceeded for 3 times in succession, the alarm component 70 is controlled to send an audible and light alarm signal to remind the staff of the fault condition, at this time, the difference value obtained by subtracting the current weight value from the last obtained weight value can also be used to estimate the degree of centrifuge running coarse.

[0050] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0051] The filtering detection device of the present application comprises a centrifugal liquid shunt pipeline 10, a filtering assembly 20 and a weight detection component 30, the inlet of the centrifugal liquid shunt pipeline 10 is used to be connected with the centrifugal liquid discharge port of the centrifuge; the outlet of the centrifugal liquid shunt pipeline 10 is connected with the filtering assembly 20; the weight detection component 30 is connected with at least part of the filtering assembly 20 to judge the running coarse state of the centrifuge by detecting the weight change of at least part of the filtering assembly 20, the present application detects the weight of the coarse particles of the centrifugal liquid after filtering in the filtering assembly 20 by the weight detection component 30, and judges whether the centrifuge runs coarse according to the weight in the filtering assembly 20, so as to solve the problem that the degree of centrifuge running coarse is difficult to detect in the prior art.

[0052] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter detection device, characterized in that, include: Centrifugal liquid diversion pipe (10), the inlet of which is used to connect to the centrifugal liquid outlet of the centrifuge; The filter assembly (20) is connected to the outlet of the centrifugal liquid diversion pipe (10); A weight detection component (30) is connected to at least a portion of the filter assembly (20) to determine the coarseness state of the centrifuge by detecting the weight change of at least a portion of the filter assembly (20). The filter assembly (20) includes: a first filter element (21), the outlet of the centrifugal liquid diversion pipe (10) is connected to the first filter element (21), the first filter element (21) has a separately configured filter structure, a third outlet and a first outlet (210), after the centrifugal liquid in the filter chamber of the first filter element (21) is filtered by the filter structure, the liquid and fine particles are discharged from the outside of the first filter element (21) through the third outlet, and the coarse particles in the centrifugal liquid remain in the first filter element (21) and flow out through the first outlet (210); a second filter element (22), the inlet of the second filter element (22) is connected to the first outlet (210) of the first filter element (21) to collect the coarse particles discharged from the first outlet (210); wherein, the weight detection element (30) is connected to the second filter element (22) to detect the weight change of the second filter element (22); The second filter element (22) has a second base plate (220) and a second outlet (221). The second base plate (220) is closably disposed at the second outlet (221), and a second filter screen is disposed on the second base plate (220). The filtration detection device further includes: a discharge operation component (40), which is connected to the second base plate (220) to operate the second base plate (220) to open or close the second discharge outlet (221); and a control component (50), which is connected to the weight detection component (30) and the discharge operation component (40) respectively to control the operation of the discharge operation component (40) according to the weight information detected by the weight detection component (30). The filter detection device further includes: an alarm component (70) for emitting an audible alarm and / or an optical alarm; and a control component (50) connected to the weight detection component (30) and the alarm component (70) respectively, so as to control the alarm component (70) to issue an alarm indication based on the weight information detected by the weight detection component (30).

2. The filter detection device according to claim 1, characterized in that, The filter detection device also includes a bracket (100), wherein... The control component (50) is mounted on the bracket (100); and / or The weight detection component (30) is mounted on the bracket (100), and the second filter component (22) is hung on the weight detection component (30); and / or The discharge operation component (40) has a limiting part, which is movably configured to limit the second bottom plate (220) to the position of closing the second discharge outlet (221) or to release the second bottom plate (220) to open the second discharge outlet (221).

3. The filter detection device according to claim 1, characterized in that, The filtration detection device further includes: A transmission rod (200) is connected to the second base plate (220). The position of the transmission rod (200) is adjustable to drive the second base plate (220) to open or close the second outlet (221).

4. The filter detection device according to any one of claims 1 to 3, characterized in that, The filtration detection device further includes a flushing pipe (60), the outlet of which is connected to the filter chamber of the first filter component (21) to spray cleaning liquid into the filter chamber of the first filter component (21).

5. The filter detection device according to claim 4, characterized in that, The outlet of the flushing pipe (60) extends from the first discharge port (210) into the filter chamber of the first filter element (21); and / or The spray direction of the outlet of the flushing pipe (60) is inclined to the spray direction of the outlet of the centrifugal liquid diversion pipe (10).

6. The filter detection device according to claim 1, characterized in that, The filter structure is disposed on the first base plate of the first filter component (21) and / or on the side wall opposite to the first outlet (210); and / or The outlet of the centrifugal fluid diversion pipe (10) is oriented vertically downwards; and / or The first base plate of the first filter component (21) is inclined to the horizontal plane.

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