Thickener

Abstract

The thickener comprises a machine barrel, a slurry discharging opening is formed in the bottom of the machine barrel, a truss is arranged at the top of the machine barrel, a driving motor is arranged on the truss, the driving motor is connected with a rake frame stretching into the bottom in the machine barrel, and the driving motor is electrically connected with a controller arranged on the outer wall of the machine barrel. The controller is electrically connected with a plurality of sensing assemblies which are arranged at the corresponding heights of the inner wall of the machine barrel in an annular array mode, each sensing assembly comprises a fixing block arranged on the inner wall of the machine barrel, a pressure sensor electrically connected with the controller is embedded in the bottom of each fixing block, a spring is connected to the bottom of each pressure sensor, and a contact plate is connected to the bottom of each spring; the slurry discharging device has the advantages that the slurry discharging operation can be automatically carried out according to the accumulation depth of the underflow slurry, and manual management is not needed.

Description

Technical Field

[0001] This application relates to the field of thickener technology, and more particularly to a thickener. Background Technology

[0002] A thickener is a solid-liquid separation device based on gravity settling. It is usually a shallow cylindrical tank with a conical bottom, constructed using concrete, wood, or welded metal plates as structural materials. It can concentrate slurry with a solid content of 10% to 20% into underflow slurry with a solid content of 45% to 55% through gravity settling. With the help of a slowly rotating rake installed inside the thickener, the thickened underflow slurry is discharged from the underflow port at the bottom of the thickener.

[0003] Because thickeners can form compression, transition, and clarification zones from bottom to top after the slurry settles, the underflow slurry in the compression zone has a high consistency and needs to be discharged in time after accumulating to a certain extent. However, existing thickeners discharge the underflow slurry by periodically operating the rake frame. This may result in situations where the underflow slurry accumulates too much and is not discharged in time, or where the underflow slurry accumulates too little and the slurry in the transition and clarification zones is discharged from the bottom at the same time. Therefore, it is difficult to determine whether to perform a discharge operation based on the accumulation depth of the underflow slurry in the compression zone, which increases the cost of manual management. Utility Model Content

[0004] The main purpose of this application is to provide a thickener that solves the technical problem that existing thickeners cannot determine whether unloading is necessary based on the depth of underflow slurry accumulation.

[0005] To achieve the above objectives, this application provides a thickener, including a barrel, a discharge port at the bottom of the barrel, a truss at the top of the barrel, a drive motor on the truss, a rake frame extending into the bottom of the barrel connected to the drive motor, and a controller electrically connected to the drive motor and disposed on the outer wall of the barrel. The controller is electrically connected to a plurality of sensing components arranged in a ring array at corresponding heights on the inner wall of the barrel. Each sensing component includes a fixing block disposed on the inner wall of the barrel, a pressure sensor electrically connected to the controller embedded at the bottom of the fixing block, a spring connected to the bottom of the pressure sensor, and a contact plate connected to the bottom of the spring. The contact plate is used to contact the settling underflow slurry.

[0006] Optionally, the contact plate is connected to a protective cover, which fits against the inner wall of the barrel. The protective cover and the contact plate form a receiving space, and the fixing block and spring are both located within the receiving space.

[0007] Optionally, the outer surface of the protective cover is spherical.

[0008] Optionally, the rake frame includes a rotating shaft connected to the bottom of the drive motor. Multiple brackets are connected to the side wall of the rotating shaft, and multiple scrapers and rake teeth are connected to the bottom of each bracket. The multiple scrapers and rake teeth are arranged alternately.

[0009] Optionally, the rotating shaft extends into the discharge port and is equipped with an auger.

[0010] Optionally, an umbrella-shaped material distribution plate is fitted onto the rotating shaft, and the umbrella-shaped material distribution plate is close to the truss.

[0011] Optionally, at least two evenly distributed vibrators are provided on the bottom surface of the umbrella-shaped distribution plate.

[0012] Optionally, an overflow trough is provided on the top side wall of the barrel, an annular filter screen is provided between the overflow trough and the top of the barrel, and an overflow pipe is connected to the outer wall of the overflow trough.

[0013] Optionally, a cleaning assembly is provided on the rotating shaft. The cleaning assembly includes a connecting sleeve fixedly sleeved on the rotating shaft. Multiple telescopic cylinders arranged in a circular array are connected to the side wall of the connecting sleeve. The telescopic cylinders are electrically connected to the controller. A brush plate is connected to the other end of the telescopic cylinder. The brush plate is used to contact the annular filter screen.

[0014] The beneficial effects that this application can achieve are as follows:

[0015] This application includes a barrel, with a discharge port at the bottom and a truss at the top. A drive motor is mounted on the truss, and the drive motor is connected to a rake frame extending into the bottom of the barrel. The drive motor is electrically connected to a controller mounted on the outer wall of the barrel. The controller is electrically connected to multiple sensing components arranged in a circular array at corresponding heights on the inner wall of the barrel. Each sensing component includes a fixed block mounted on the inner wall of the barrel. A pressure sensor, electrically connected to the controller, is embedded at the bottom of the fixed block. A spring is connected to the bottom of the pressure sensor, and a contact plate is connected to the bottom of the spring. The contact plate is used to contact the settling underflow slurry. Because this application has multiple sensing components installed on the inner wall of the barrel, when the settled underflow slurry accumulates to a certain depth, it can put pressure on the contact plate, causing the contact plate to move upward and squeeze the spring. The pressure sensor detects the corresponding pressure magnitude. When the preset pressure value is reached, the pressure sensor sends a signal to the controller, which can then control the drive motor to run for a certain period of time, thereby driving the rake frame to rotate and discharge the underflow slurry from the discharge port at the bottom of the barrel. This achieves automatic discharge operation based on the accumulation depth of the underflow slurry, eliminating the need for manual management and saving management costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1This is a schematic diagram of the structure of a thickener according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of another structure of a thickener according to an embodiment of this application.

[0019] Figure label:

[0020] 110-Barrel, 120-Truss, 130-Drive Motor, 140-Rake Frame, 141-Rotating Shaft, 142-Bracket, 143-Scraper, 144-Rake Teeth, 145-Auger, 150-Controller, 160-Sensing Component, 161-Fixing Block, 162-Pressure Sensor, 163-Spring, 164-Contact Plate, 165-Protective Cover, 170-Umbrella-shaped Distributor Plate, 180-Vibrator, 190-Overflow Groove, 210-Annular Filter Screen, 220-Overflow Pipe, 230-Cleaning Component, 231-Connecting Sleeve, 232-Telescopic Cylinder, 233-Brush Plate.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0026] Example

[0027] Reference Figures 1-2 This embodiment provides a thickener, including a barrel 110. A discharge port is provided at the bottom of the barrel 110, and a truss 120 is provided at the top of the barrel 110. A drive motor 130 is provided on the truss 120. The drive motor 130 is connected to a rake frame 140 extending into the bottom of the barrel 110. The drive motor 130 is electrically connected to a controller 150 provided on the outer wall of the barrel 110. The controller 150 is electrically connected to a plurality of sensing components 160 arranged in a ring array at corresponding heights on the inner wall of the barrel 110. The sensing components 160 include a fixing block 161 provided on the inner wall of the barrel 110. A pressure sensor 162 electrically connected to the controller 150 is embedded at the bottom of the fixing block 161. A spring 163 is connected to the bottom of the pressure sensor 162. A contact plate 164 is connected to the bottom of the spring 163. The contact plate 164 is used to contact the settling underflow slurry.

[0028] In this embodiment, since multiple sensing components 160 are provided on the inner wall of the barrel 110, when the settled underflow slurry accumulates to a certain depth, it can put pressure on the contact plate 164, causing the contact plate 164 to move upward and compress the spring 163. The pressure sensor 162 detects the corresponding pressure. When the preset pressure value is reached, the pressure sensor 162 sends a signal to the controller 150. The controller 150 can then control the drive motor 130 to run for a certain period of time, thereby driving the rake frame 140 to rotate and discharge the underflow slurry from the discharge port at the bottom of the barrel 110. This achieves automatic discharge operation based on the accumulation depth of the underflow slurry, eliminating the need for manual management and saving management costs.

[0029] It should be noted that, since the density of the underflow slurry is relatively high, it can exert a certain pressure on the contact plate 164 when it accumulates to a certain depth. Also, considering that the surface of the underflow slurry may be uneven, multiple contact plates 164 are set to contact the underflow slurry, that is, multiple measuring points are provided. As long as the pressure data measured at one of the measuring points reaches the preset pressure value, the slurry unloading operation can be triggered, thereby improving the detection sensitivity.

[0030] As an optional implementation, the contact plate 164 is connected to a protective cover 165, which fits against the inner wall of the barrel 110. The protective cover 165 and the contact plate 164 form a receiving space, and the fixing block 161 and the spring 163 are both located within the receiving space.

[0031] In this embodiment, the protective cover 165 can isolate relatively thick or hard lumps in the slurry to a certain extent, and can also prevent the ore material added from the top of the barrel 110 from entering the receiving space, thereby avoiding the accumulation of too many material blocks on the top surface of the contact plate 164, which would reduce the sensing ability of the contact plate 164 to the underflow slurry compression reaction force due to gravity.

[0032] It should be noted that the containment space enclosed by the protective cover 165 and the contact plate 164 allows the slurry to enter, thereby allowing the protective cover 165 and the contact plate 164 to be suspended in the slurry. When the contact plate 164 is squeezed by the underflow slurry, it can move upward more sensitively.

[0033] As an alternative implementation, the outer surface of the protective cover 165 is spherical, which allows the slurry to slide down the spherical surface without depositing on the protective cover 165.

[0034] As an optional implementation, the rake frame 140 includes a rotating shaft 141 connected to the bottom of the drive motor 130. Multiple supports 142 are connected to the side wall of the rotating shaft 141. Multiple scrapers 143 and rake teeth 144 are connected to the bottom of each support 142. The multiple scrapers 143 and rake teeth 144 are arranged alternately.

[0035] In this embodiment, when unloading is required, the drive motor 130 drives the rotating shaft 141 to rotate, thereby driving the support 142 and the scraper 143 and rake teeth 144 at its bottom to rotate synchronously. The scraper 143 can scrape off the underflow slurry at the conical bottom of the barrel 110 so that it can be discharged from the unloading port. At the same time, the rake teeth 144 can loosen the underflow slurry to prevent the underflow slurry from being too dense to be easily scraped off, reduce the risk of scraper 143 breaking, and reduce the power consumption of the drive motor 130.

[0036] As an alternative implementation, the rotating shaft 141 extends into the discharge port and is equipped with an auger 145 to facilitate the discharge of underflow slurry from the discharge port, which can be connected to a conveying pipeline to transport the underflow slurry to the corresponding storage area.

[0037] As an optional implementation, an umbrella-shaped material distribution plate 170 is sleeved on the rotating shaft 141. The umbrella-shaped material distribution plate 170 is close to the truss 120. When the ore is added from the top of the barrel 110, the ore first falls on the umbrella-shaped material distribution plate 170, and then slides outward along the inclined surface of the umbrella-shaped material distribution plate 170 into the barrel 110. This can improve the uniformity of the distribution of the ore in the barrel 110 and avoid concentrated accumulation in one place.

[0038] It should be noted that the umbrella-shaped material distribution plate 170 can be movably sleeved on the rotating shaft 141 via bearings. When the rotating shaft 141 rotates, the umbrella-shaped material distribution plate 170 will not rotate. Alternatively, the umbrella-shaped material distribution plate 170 can be fixedly sleeved on the rotating shaft 141 and can rotate synchronously with the rotating shaft 141, thereby generating centrifugal force to throw the small amount of ore remaining on the umbrella-shaped material distribution plate 170 into the barrel 110.

[0039] As an optional implementation, the bottom surface of the umbrella-shaped material distribution plate 170 is provided with at least two evenly distributed vibrators 180, which can generate vibration on the umbrella-shaped material distribution plate 170 to promote the rapid sliding of the ore.

[0040] As an optional implementation, an overflow trough 190 is provided on the top side wall of the barrel 110, and an annular filter screen 210 is provided between the overflow trough 190 and the top of the barrel 110. An overflow pipe 220 is connected to the outer wall of the overflow trough 190. The liquid in the upper clarification zone formed can pass through the annular filter screen 210 and flow into the overflow trough 190, and finally be discharged from the overflow pipe 220. Here, the annular filter screen 210 can filter out some of the scum and other impurities.

[0041] As an optional implementation, a cleaning assembly 230 is provided on the rotating shaft 141. The cleaning assembly 230 includes a connecting sleeve 231 fixedly sleeved on the rotating shaft 141. A plurality of telescopic cylinders 232 arranged in a ring array are connected to the side wall of the connecting sleeve 231. The telescopic cylinders 232 are electrically connected to the controller 150. The other end of the telescopic cylinder 232 is connected to a brush plate 233, which is used to contact the annular filter screen 210.

[0042] In this embodiment, when the rotating shaft 141 rotates, the controller 150 synchronously sends a signal to the telescopic cylinder 232. The telescopic cylinder 232 extends and drives the brush plate 233 to adhere to the annular filter screen 210. Then, the rotation of the rotating shaft 141 drives the telescopic cylinder 232 and the brush plate 233 to rotate synchronously, thereby cleaning the annular filter screen 210, reducing the risk of clogging of the annular filter screen 210 and ensuring its filtration effect.

[0043] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A thickener, characterized in that, The device includes a barrel, a discharge port at the bottom of the barrel, a truss at the top of the barrel, a drive motor on the truss, a rake frame extending into the bottom of the barrel, and an electrically connected controller on the outer wall of the barrel. The controller is electrically connected to multiple sensing components arranged in a circular array at corresponding heights on the inner wall of the barrel. Each sensing component includes a fixing block on the inner wall of the barrel, a pressure sensor embedded at the bottom of the fixing block and electrically connected to the controller, a spring connected to the bottom of the pressure sensor, and a contact plate connected to the bottom of the spring. The contact plate is used to contact the settling underflow slurry.

2. A thickener as described in claim 1, characterized in that, The contact plate is connected to a protective cover, which fits against the inner wall of the barrel. The protective cover and the contact plate form a receiving space, and the fixing block and the spring are both located within the receiving space.

3. A thickener as described in claim 2, characterized in that, The outer surface of the protective cover is spherical.

4. A thickener as described in any one of claims 1-3, characterized in that, The rake frame includes a rotating shaft connected to the bottom of the drive motor. Multiple brackets are connected to the side wall of the rotating shaft. Multiple scrapers and rake teeth are connected to the bottom of each bracket. The multiple scrapers and rake teeth are arranged alternately.

5. A thickener as described in claim 4, characterized in that, The rotating shaft extends into the discharge port and is equipped with an auger.

6. A thickener as described in claim 4, characterized in that, An umbrella-shaped material distribution plate is fitted onto the rotating shaft, and the umbrella-shaped material distribution plate is close to the truss.

7. A thickener as described in claim 6, characterized in that, The bottom surface of the umbrella-shaped distribution plate is provided with at least two evenly distributed vibrators.

8. A thickener as described in claim 4, characterized in that, An overflow trough is provided on the top side wall of the barrel, and an annular filter screen is provided between the overflow trough and the top of the barrel. An overflow pipe is connected to the outer wall of the overflow trough.

9. A thickener as described in claim 8, characterized in that, A cleaning assembly is provided on the rotating shaft. The cleaning assembly includes a connecting sleeve fixedly sleeved on the rotating shaft. A plurality of telescopic cylinders arranged in a circular array are connected to the side wall of the connecting sleeve. The telescopic cylinders are electrically connected to the controller. A brush plate is connected to the other end of the telescopic cylinder. The brush plate is used to contact the annular filter screen.

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