A coarse discharge alarm device for installation at the liquid discharge port of a centrifuge

Abstract

The utility model discloses a kind of coarse running alarm devices installed at centrifuge liquid discharge port, including coarse running alarm component, it is installed in the discharge port pipeline bottom of centrifuge body, for the wear coarse running alarm of sieve basket. By setting coarse running alarm device at the sieve basket bottom of centrifuge liquid discharge port, to make the coarse running net on coarse running alarm device overturn after the solid accumulation of under leakage, and drive the rotation of the coarse running rotating shaft installed with coarse running net, to make the deformation of reset spring connected to the middle of the pipe wall of coarse running rotating shaft and discharge pipe, and reset after reset spring recovery drives coarse running rotating shaft, and the rotating shaft is driven by infrared sensor installed on flange cover Transmission response, to make infrared sensor record the rotation frequency and rotation frequency of coarse running rotating shaft, to obtain the wear rate of sieve basket in reverse, replace original manual interval acquisition to obtain sieve basket wear degree.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge equipment technology, specifically to a coarseness alarm device installed at the liquid discharge port of a centrifuge. Background Technology

[0002] Existing coal mine centrifuges are mainly used for solid-liquid separation of coal slime. The screen basket is a vulnerable part because it is frequently in contact with solids.

[0003] In the current centrifuge production process, whether the screen basket needs to be replaced can only be determined manually by sampling the liquid output from the centrifuge and visually inspecting it. There is no coarseness alarm device installed at the liquid discharge port of the centrifuge. As a result, when the screen basket is worn, there is no warning or centrifuge shutdown, which affects the solid-liquid separation quality of the screen basket at the centrifuge discharge port. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a coarseness alarm device installed at the liquid discharge port of a centrifuge to solve the technical problem that in existing centrifuges, the need for replacement of the sieve basket can only be determined manually by sampling the liquid output from the centrifuge and visually inspecting it. The lack of a coarseness alarm device at the liquid discharge port prevents early warning and centrifuge shutdown when the sieve basket wears out, thus affecting the solid-liquid separation quality of the sieve basket at the centrifuge discharge port.

[0005] According to the technical solution provided in the embodiments of this application, a coarseness alarm device installed at the liquid discharge port of a centrifuge includes a coarseness alarm component, which is installed at the bottom of the screen basket of the discharge pipe of the centrifuge body and is used for wear and coarseness alarm of the screen basket.

[0006] The coarseness alarm component includes a coarseness mesh, a coarseness rotating shaft, and a reset spring;

[0007] The coarse-running shaft is mounted on the wall of the unloading pipe via bearings, and the coarse-running screen is fixedly mounted on the open mounting slot at the top of the coarse-running shaft with screws, so that the solids accumulated on the coarse-running screen drive the coarse-running shaft with the coarse-running screen mounted on it to rotate.

[0008] The return spring is installed between the walls of the roughing shaft and the unloading pipe, and is used to reset the roughing shaft.

[0009] An infrared sensor, mounted on the flange cover of the connecting pipe, is used to monitor the number of rotations and the rotation frequency of the coarse-running shaft.

[0010] Furthermore, the coarse mesh has a semi-circular structure.

[0011] Furthermore, a first fixing plate is vertically installed at the middle position of the roughing shaft, a second fixing plate is installed on the wall of the unloading pipe, and one end of the return spring is engaged with the first fixing plate and the other end is engaged with the second fixing plate.

[0012] Furthermore, the coarse-running shaft is connected horizontally and vertically to the reset spring.

[0013] Furthermore, the infrared sensor is electrically connected to the centrifuge body controller.

[0014] Furthermore, the tail end of the roughing shaft is mounted to the middle position of the connecting pipe via a flange.

[0015] Furthermore, the connecting pipe is installed vertically on the outside of the unloading pipe.

[0016] In summary, the beneficial effects of this application are as follows:

[0017] 1. By installing a coarseness alarm device at the bottom of the screen basket at the liquid discharge port of the centrifuge, the coarseness alarm device's screen flips over after the solids accumulate below, causing the coarseness screen-equipped rotating shaft to rotate. This causes the return spring connected between the rotating shaft and the discharge pipe wall to deform. After the return spring returns to its original position, it drives the rotating shaft to reset. The rotating shaft is sensed by an infrared sensor installed on the flange cover, which records the number of rotations and the rotation frequency of the rotating shaft. This allows the wear rate of the screen basket to be obtained in reverse, replacing the original manual interval collection of screen basket wear.

[0018] 2. An infrared sensor is electrically connected to the centrifuge controller so that the coarseness alarm device can detect and alarm the quality of the liquid output from the centrifuge discharge port online. This allows the centrifuge to be stopped in time when the screen basket wears out, thereby improving the production quality of the centrifuge and saving labor costs. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the assembly structure of the present invention and the centrifuge body.

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0022] The following components are labeled in the diagram: coarseness alarm component 100, coarseness mesh 110, coarseness rotating shaft 120, reset spring 130, infrared sensor 140, centrifuge body 200, unloading pipe 210, connecting pipe 220, and flange cover 230. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] A coarseness alarm device installed at the liquid discharge port of a centrifuge, the structure of which is as follows: Figures 1-2 As shown, it includes a coarseness alarm component 100, which is installed at the bottom of the screen basket of the discharge port pipe of the centrifuge body 200 and is used for coarseness alarm of screen basket wear.

[0026] like Figure 2 As shown, the coarseness alarm assembly 100 includes a coarseness screen 110, a coarseness rotating shaft 120, a reset spring 130, and an infrared sensor 140. The coarseness rotating shaft 120 is movably mounted on the wall of the discharge pipe 210, and the coarseness screen 110 is fixedly mounted on the opening mounting slot at the top of the coarseness rotating shaft 120 by screws. The coarseness screen 110 has a semi-circular structure and is used to fix, intercept, and accumulate solids falling from the screen basket, so that the solids accumulated on the coarseness screen 110 drive the coarseness rotating shaft 120, on which the coarseness screen 110 is mounted, to rotate.

[0027] like Figure 2 As shown, a first fixing plate is vertically installed in the middle of the roughing shaft 120, and a second fixing plate is installed on the pipe wall of the discharge pipe 210. One end of the return spring 130 is clamped to the first fixing plate, and the other end is clamped to the second fixing plate, so that the return spring 130 is installed in the middle of the pipe wall of the roughing shaft 120 and the discharge pipe 210, so that the roughing shaft 120 and the return spring 130 are connected horizontally and vertically. When the solids accumulated on the roughing mesh 110 exceed the elasticity of the return spring 130, the roughing shaft 120 rotates, causing the return spring 130 to deform. The roughing shaft 120, which is reduced in weight after flipping, returns to its original position during the return process of the return spring 130.

[0028] like Figure 2As shown, the infrared sensor 140 is mounted on the flange cover 230 of the connecting pipe 220. The connecting pipe 220 is vertically mounted on the outside of the discharge pipe 210. The tail end of the coarse-running shaft 120 is mounted in the middle of the connecting pipe 220 via a flange. The infrared sensor 140 is electrically connected to the centrifuge body 200 controller. Each time the infrared sensor 140 detects an obstruction signal from the coarse-running shaft 120, it is recorded as one rotation. The controller compares the number of rotations per unit time with a set threshold (10 times / minute) and triggers an alarm. This allows the infrared sensor 140 to record the number of rotations and rotation frequency of the coarse-running shaft 120, thereby obtaining the wear rate of the sieve basket. This replaces the original method of manually collecting samples at intervals to deduce the wear degree of the sieve basket. The controller then controls the centrifuge body 200 to stop and replace the sieve basket, thereby improving the production efficiency of the centrifuge.

[0029] The working principle of the coarseness alarm device installed at the liquid discharge port of a centrifuge according to this utility model is as follows:

[0030] Centrifuges are mainly used for solid-liquid separation of coal slime. The centrifuge's liquid discharge port, discharge pipe 210, is equipped with a screen basket. This screen basket is prone to wear due to frequent friction and collision with solids. Since the centrifuge's liquid discharge port primarily outputs a mixture of small solids and water, when the screen basket is damaged, larger solids leak out and fall onto the coarse mesh 110 at the bottom of the screen basket. These larger solids are intercepted and accumulated by the coarse mesh 110. When the accumulated solids reach a certain weight, the weight exceeds the elastic force of the return spring 130, causing the coarse mesh rotating shaft 120, which is equipped with the coarse mesh 110, to rotate and tilt, causing the coal slag to fall off. After the coal slag has fallen off, it is located at... The return spring 130 above the screen basket returns to its original position after elastic deformation, causing the coarse-running shaft 120 to reset. This, in turn, resets the semi-circular coarse-running mesh 110 mounted on the coarse-running shaft 120. While the coarse-running shaft 120 reciprocates, the infrared sensor 130 on the flange cover 230 collects the number of rotations and rotation frequency of the coarse-running shaft 120. This data is then transmitted to the controller control room on the centrifuge for monitoring. If the collected coarse-running shaft 120 exceeds a certain number of rotations or frequency, an alarm will be triggered, and the centrifuge will automatically stop, allowing staff to check the wear of the centrifuge screen basket and determine if it needs replacement. The coarse-running alarm device also performs online detection and alarm on the quality of the liquid output from the centrifuge discharge port. This eliminates the need for manual sampling and assessment when the screen basket wears, enabling timely detection of wear rate and prompting of alarms and automatic centrifuge shutdown. This improves the production quality of the centrifuge and saves labor costs.

[0031] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A coarseness alarm device installed at the liquid discharge port of a centrifuge, comprising a coarseness alarm component (100), which is installed at the bottom of the screen basket of the discharge pipe of the centrifuge body (200) for alarming wear and coarseness of the screen basket, characterized in that: The coarseness alarm component (100) includes a coarseness mesh (110), a coarseness rotating shaft (120), and a reset spring (130). The coarse running shaft (120) is mounted on the wall of the unloading pipe (210) by bearings, and the coarse running mesh (110) is fixedly mounted on the opening mounting groove at the top of the coarse running shaft (120) by screws, so that the solids accumulated on the coarse running mesh (110) drive the coarse running shaft (120) on which the coarse running mesh (110) is mounted to rotate. The return spring (130) is installed between the roughing shaft (120) and the unloading pipe (210); It also includes an infrared sensor (140), which is mounted on the flange cover (230) of the connecting pipe (220).

2. The coarseness alarm device installed at the liquid discharge port of a centrifuge according to claim 1, characterized in that: The coarse mesh (110) has a semi-circular structure.

3. The coarseness alarm device installed at the liquid discharge port of a centrifuge according to claim 1, characterized in that: A first fixing plate is vertically installed in the middle of the roughing shaft (120), and a second fixing plate is installed on the wall of the unloading pipe (210). One end of the reset spring (130) is clamped to the first fixing plate, and the other end is clamped to the second fixing plate.

4. The coarseness alarm device installed at the liquid discharge port of a centrifuge according to claim 1, characterized in that: The coarse-running shaft (120) and the return spring (130) are connected horizontally and vertically.

5. A coarseness alarm device installed at the liquid discharge port of a centrifuge according to claim 1, characterized in that: The infrared sensor (140) is electrically connected to the controller of the centrifuge body (200).

6. A coarseness alarm device installed at the liquid discharge port of a centrifuge according to claim 1, characterized in that: The tail end of the roughing shaft (120) is installed in the middle of the connecting pipe (220) via a flange.

7. A coarseness alarm device installed at the liquid discharge port of a centrifuge according to claim 1, characterized in that: The connecting pipe (220) is installed vertically on the outside of the unloading pipe (210).

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