A slurry thickener

Abstract

The application relates to a slurry thickening tank, belonging to the technical field of slurry treatment. The slurry thickening tank comprises a first tank body, a second tank body and a third tank body, a partition plate is arranged in the first tank body, the partition plate divides the internal space of the first tank body into a first cavity and a second cavity, a liquid inlet for slurry injection and a first discharge port for slurry and sand outflow are arranged on the side wall of the first cavity; the second tank body is communicated with the second cavity through a first overflow port, the second tank body is communicated with the third tank body through a second overflow port, and the third tank body is provided with a first liquid outlet; wherein the partition plate is provided with a plurality of flow guide pipes, the flow guide pipes are bent pipes penetrating through the partition plate, and the two ends of the flow guide pipes extend towards the bottom wall of the first tank body; from the bottom wall of the first tank body to the opening of the first tank body, the plurality of flow guide pipes arranged on the partition plate are respectively a first flow guide pipe, a second flow guide pipe and a third flow guide pipe. The slurry thickening tank provided in the application can improve the water quality of the obtained liquid.

Description

Technical Field

[0001] The present application relates to the technical field of slurry processing, and in particular to a slurry thickening tank. Background Art

[0002] A slurry thickener, also known as a thickener, is a solid-liquid separation device based on gravity sedimentation. It is primarily used to concentrate solid particles in a suspension by gravity sedimentation, thereby separating a purer liquid.

[0003] The slurry in the slurry thickening tank needs to flow through multiple sedimentation chambers to allow the solid particles (mainly clay) in the liquid to settle. Each sedimentation chamber can further remove impurities in the water, thereby improving the effluent quality. When the slurry is first injected into the thickening tank, taking the transfer of the first liquid containing the most impurities as an example, the slurry is injected into the first sedimentation tank. When the liquid level in the first sedimentation tank reaches the height of the overflow port, the surface liquid in the first sedimentation tank moves to the second sedimentation tank through the overflow port. The liquid will flow along the inner wall of the second sedimentation tank or fall in the air to the bottom of the sedimentation tank. The liquid level in the second sedimentation tank rises until it reaches the overflow port between the second sedimentation tank and the subsequent sedimentation tank. In thickening tanks with higher heights (for example, thickening tanks up to 4m high), the liquid flows from the first sedimentation tank to the bottom of the second sedimentation tank. When the tank moves to the second sedimentation tank, the liquid falls a long distance. The liquid can accelerate in the air for a long time, resulting in the liquid containing greater kinetic energy when it falls into the second sedimentation tank. The liquid in the second sedimentation tank moves violently under the drive of the newly fallen liquid with greater kinetic energy, causing the solid impurities at the bottom to be lifted up and suspended in the liquid. As a result, the liquid output from the slurry thickening tank contains more solid impurities in the initial period of operation. These solid impurities may enter the subsequent circulating water equipment, causing damage to the subsequent equipment and affecting the water quality of the obtained clean water. Summary of the Invention

[0004] The purpose of this application is to provide a slurry thickening tank to address the above problems, which can improve the water quality of the obtained liquid and improve the above problems.

[0005] This application is achieved through the following technical solutions:

[0006] The present application provides a slurry thickening tank, which includes a first tank body, a second tank body and a third tank body. A partition plate is provided inside the first tank body, which divides the internal space of the first tank body into a first cavity and a second cavity. The side wall of the first cavity is provided with a liquid inlet for injecting slurry and a first discharge port for flowing out mud and sand; the second tank body is connected to the second cavity through a first overflow port, the second tank body is connected to the third tank body through a second overflow port, and the third tank body is provided with a first liquid outlet; wherein, the partition plate is provided with a plurality of guide pipes, which are curved pipes passing through the partition plate, and both ends of the guide pipes extend toward the bottom wall of the first tank body, from the bottom wall of the first tank body to the opening of the first tank body, the plurality of guide pipes provided on the partition plate are respectively the first guide pipe, the second guide pipe and the third guide pipe; the opening of the third guide pipe is higher than the second guide pipe, and the opening of the second guide pipe is higher than the first guide pipe.

[0007] In the technical solution of the embodiment of the present application, the partition plate divides the internal space of the first trough body into a first cavity and a second cavity, and the side wall of the first cavity is provided with a liquid inlet for injecting slurry and a first discharge port for discharging mud and sand. The slurry is settled in the first cavity after passing through the liquid inlet, and the solid impurities are located at the lower part of the liquid in the first cavity, and the liquid is located at the upper part of the liquid in the first cavity; the second trough body is connected with the second cavity through a first overflow port, and the second trough body is connected with the third trough body through a second overflow port, and the third trough body is provided with a first liquid outlet, and the liquid in the second cavity can enter the second trough body and the third trough body through the first overflow port and the second overflow port in turn, and the liquid is settled again in the second trough body, and enters the third trough body after becoming clarified water, and is discharged by the third trough body. The clean water is sent to the subsequent equipment (such as circulating water treatment equipment, etc.) through the first liquid outlet; the multiple guide pipes arranged on the partition plate are respectively the first guide pipe, the second guide pipe and the third guide pipe; the opening of the third guide pipe is higher than the second guide pipe, and the opening of the second guide pipe is higher than the first guide pipe. When the slurry thickening tank provided in the present application starts to work, the slurry is injected into the first cavity through the liquid inlet, and the liquid level of the liquid in the first cavity begins to rise gradually. When the liquid level in the first cavity is above the opening of the first guide pipe in the first cavity, the first conduit draws the liquid in the surface area of ​​the first cavity into the second cavity through the siphon effect, so that the liquid level of the liquid in the second cavity rises accordingly. When the liquid levels in the first cavity and the second cavity are higher than the first conduit, the first conduit is sucked into the second cavity by the siphon effect. The catheter stops draining, and the liquid level in the first cavity continues to rise; when the liquid level in the first cavity is above the opening of the second guide tube in the first cavity, the second catheter draws the liquid in the surface area of ​​the first cavity into the second cavity through the siphon effect, causing the liquid level in the second cavity to rise accordingly; when the liquid levels in the first cavity and the second cavity are higher than the second catheter, the second catheter stops draining, and the liquid level in the first cavity continues to rise; when the liquid level in the first cavity is above the opening of the third guide tube in the first cavity, the third catheter draws the liquid in the surface area of ​​the first cavity into the second cavity through the siphon effect, causing the liquid level in the second cavity to rise accordingly; when the liquid level in the second cavity reaches the height of the third guide tube, the liquid in the second cavity The liquid level in the first chamber stops rising, and the liquid level in the first chamber also stops rising and remains stable. The first, second, and third guide tubes are opened in sequence as the liquid levels in the first and second chambers rise, so that the liquid falling into the second chamber needs to fall a shorter distance after passing through each guide tube, thereby shortening the time for the liquid to accelerate, and the kinetic energy of the liquid falling into the second chamber is smaller, which is less likely to affect the natural sedimentation process of the liquid already in the second chamber. When the liquid in the second chamber rises to the first overflow port, it has already begun to stratify up and down due to sedimentation, and the area near the first overflow port contains water with a lower content of solid impurities, thereby improving the operating effect of the slurry thickening tank provided by the present application within a period of time after the initial operation, and improving the water quality of the treated liquid.

[0008] In some embodiments, the first flow guide tube includes an inlet section, an outlet section and a connecting section. The connecting section is arc-shaped and passes through the partition plate. The inlet section is located in the first cavity, the outlet section is located in the second cavity, and the connecting section connects the inlet section and the outlet section. Both the inlet section and the outlet section extend along the height direction of the partition plate.

[0009] In the technical solution of the embodiment of the present application, the inlet section and the outlet section both extend along the height direction of the partition plate, so that the path of the liquid flowing in the inlet section and the outlet section is the shortest, thereby accelerating the speed at which the first guide tube, the second guide tube and the third guide tube introduce the liquid in the first cavity into the second cavity, so that the liquid level in the second cavity can rise in time with the replenishment of the liquid in the first cavity, thereby reducing the height difference between the two.

[0010] In some embodiments, in the height direction of the partition plate, the size of the inlet section is h1, and the size of the outlet section is h2, satisfying h1>h2.

[0011] In the technical solution of the embodiment of the present application, when the liquid level in the second cavity exceeds the opening of the outflow section, the pressure difference between the opening of the inflow section and the opening of the outflow section will decrease, that is, the force pushing the liquid in the first cavity into the inflow section will decrease, thereby causing the rate of liquid entering the second cavity from the first cavity to slow down; the size of the inflow section is h1, and the size of the outflow section is h2. When h1>h2, after the liquid in the first cavity submerges the opening of the inflow section, the pressure difference at the opening of the inflow section and the opening of the outflow section will press the liquid in the first cavity into the inflow section, and then pass through the connecting section and the outflow section in sequence to reach the second cavity. The liquid level in the second cavity needs to rise for a period of time before it submerges the opening of the outflow section, thereby allowing the liquid in the first cavity to enter the second cavity at a higher rate for a longer period of time, thereby improving the liquid transfer rate and avoiding the situation where the liquid in the first cavity cannot enter the second cavity in time, resulting in the liquid level rising too fast and multiple guide tubes being opened simultaneously.

[0012] In some embodiments, projections of the first flow guiding tube, the second flow guiding tube, and the third flow guiding tube on the bottom wall of the first trough body are staggered.

[0013] In the technical solution of the embodiment of the present application, when the liquid in the first cavity enters the second cavity through the first, second and third flow conduits, the liquid in the first cavity will flow toward the openings of the first, second and third flow conduits. The flow of the liquid will drive the solid impurities at the bottom of the first cavity to move toward the first, second and third flow conduits. The projections of the first, second and third flow conduits on the bottom wall of the first trough body are staggered with each other, so that the solid impurities in the first cavity will not continuously move to the same place, thereby reducing the risk of a large amount of solid material being deposited in one place and solidifying and difficult to discharge.

[0014] In some embodiments, after the slurry in the first cavity settles, the upper layer is a liquid area and the lower layer is a mud and sand area. The first discharge port is arranged opposite the mud and sand area, and the first discharge port is close to the bottom wall of the first cavity. The liquid inlet is arranged opposite the liquid area, and the liquid inlet is close to the mud and sand area.

[0015] In the technical solution of the embodiment of the present application, the first discharge port is arranged opposite to the mud and sand area, and the first discharge port is close to the bottom wall of the first cavity, so that the first discharge port can extract solid impurities such as mud and sand in the first cavity, and the solid impurities in the first cavity are not easily attached to the bottom wall of the first cavity. The liquid inlet is arranged opposite to the liquid area, and the liquid inlet is close to the mud and sand area, so that the slurry newly entering the first cavity can begin to settle near the mud and sand area, avoiding the newly entered liquid from driving the solid impurities in the mud and sand area to flow, and also avoiding the solid impurities in the newly entered liquid from making the relatively clean liquid in the upper layer of the liquid area turbid.

[0016] In some embodiments, there are multiple first flow conduits, multiple second flow conduits, and multiple third flow conduits, and the multiple first flow conduits, multiple second flow conduits, and multiple third flow conduits are all arranged at intervals along the length direction of the partition plate.

[0017] In the technical solution of the embodiment of the present application, the number of the first flow guide tube, the second flow guide tube and the third flow guide tube is multiple, so that multiple first flow guide tubes, multiple second flow guide tubes or multiple third flow guide tubes can transfer liquid at the same time, thereby accelerating the speed at which the liquid in the first cavity enters the second cavity and avoiding excessive height difference between the liquid level in the first cavity and the liquid level in the second cavity.

[0018] In some embodiments, a conduit is provided on the bottom wall of the second trough body, and the conduit is provided close to the first trough body. A conduit cavity is provided on the inner side of the conduit. The height of the two ends of the conduit cavity gradually decreases to the center of the conduit cavity. The center of the conduit cavity is connected with the second liquid outlet, and the second liquid outlet extends toward the opening of the second trough body; the number of the first overflow ports is two, and the two first overflow ports are respectively connected with the two ends of the conduit cavity through pipes, and the second liquid outlet is lower than the second overflow port.

[0019] In the technical solution of the embodiment of the present application, a confluence piece is provided on the bottom wall of the second trough body, and a confluence cavity is provided on the inner side of the confluence piece. The height of the two ends of the confluence cavity gradually decreases to the height of the center of the confluence cavity, and the center of the confluence cavity is connected with the second liquid outlet; there are two first overflow ports, and the two first overflow ports are connected with the two ends of the confluence cavity through pipes respectively; the liquid in the second cavity enters the two ends of the confluence cavity through the two first overflow ports and the pipe, and then flows along the confluence cavity to the center of the confluence cavity. The two liquids entering from the two ends of the confluence cavity have opposite flow directions and will meet in the center of the confluence cavity. The two liquids collide and converge at the center, and the collision of the two liquids consumes the kinetic energy of the two liquids. On the one hand, the kinetic energy of the liquid is reduced and it is difficult to continue to drive the solid particles to move. The solid particles in the liquid are able to settle to the center of the confluence cavity under the action of gravity, thereby enhancing the removal effect of solid impurities in the liquid; on the other hand, the liquid in the confluence cavity can enter the second trough body through the second liquid outlet at a relatively slow speed, thereby avoiding the situation where the kinetic energy of the new liquid entering the second trough body is large and drives the solid impurities at the bottom of the second trough body to float up, affecting the sedimentation effect of the liquid in the second trough body.

[0020] In some embodiments, an opening of the second liquid outlet at one end away from the confluence cavity is not lower than two ends of the confluence cavity.

[0021] In the technical solution of the embodiment of the present application, the liquid flowing to the center of the confluence cavity is not easily allowed to enter the second tank body through the second liquid outlet before the offset, thereby ensuring that the kinetic energy of the liquid entering the second tank body is relatively small.

[0022] In some embodiments, a dust collecting trough is further provided at the center of the confluence cavity. The dust collecting trough extends toward the bottom wall of the second trough body along the height direction of the second trough body, and the dust collecting trough is connected to the recovery pipe.

[0023] In the technical solution of the embodiment of the present application, a dust collecting trough is also provided at the center of the confluence chamber, which can collect solid impurities falling after liquid flushing in the confluence chamber, and the dust collecting trough is connected to the recovery pipe, which can timely recover the solid impurities in the dust collecting trough, avoiding excessive solid impurities from accumulating and solidifying in the dust collecting trough, which makes subsequent cleaning more troublesome, and also saves the trouble of removing the reflux component to clean the solid impurities inside it.

[0024] In some embodiments, a radar sensor for detecting the liquid level is provided in the third tank.

[0025] In the technical solution of the embodiment of the present application, a radar sensor for detecting the liquid level is provided in the third tank body, which can quickly and accurately detect the liquid level of the third tank body, allowing the operator to promptly open the first liquid outlet or close the slurry thickening tank provided by the present application, thereby avoiding the situation where the liquid level in the third tank body is higher than the second overflow port, causing liquid backflow.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the external structure of a slurry thickener provided in some embodiments of the present application;

[0029] Figure 2 A schematic diagram of the structure of a slurry thickening tank provided in other embodiments of the present application;

[0030] Figure 3 A top view of a slurry thickening tank provided in some embodiments of the present application;

[0031] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0032] Figure 5 for Figure 3 Cross-sectional view at the middle BB;

[0033] Figure 6 for Figure 3 Cross-sectional view at CC.

[0034] Icon: 1-first trough body; 10-partition plate; 100-first guide pipe; 1000-inlet section; 1001-outlet section; 1002-connecting section; 101-second guide pipe; 102-third guide pipe; 11-first cavity; 12-second cavity; 13-liquid inlet; 14-first outlet; 2-second trough body; 20-first overflow port; 21-convective piece; 210-convective cavity; 211-second liquid outlet; 212-dust collecting trough; 3-third trough body; 30-second overflow port; 31-first liquid outlet. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0037] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0039] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0040] The term "multiple" in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0041] According to some embodiments of the present application, optionally, Figures 1 to 4 、 Figure 6 As shown, the present application provides a slurry thickening tank, which includes a first tank body 1, a second tank body 2 and a third tank body 3. A partition plate 10 is provided inside the first tank body 1, and the partition plate 10 divides the internal space of the first tank body 1 into a first cavity 11 and a second cavity 12. The side wall of the first cavity 11 is provided with a liquid inlet 13 for slurry injection and a first discharge port 14 for mud and sand to flow out; the second tank body 2 is connected to the second cavity 12 through a first overflow port 20, and the second tank body 2 is connected to the third tank body 3 through a second overflow port 30. The third tank body 3 is provided with a first liquid outlet 31; wherein, the partition plate 10 is provided with multiple guide tubes, which are curved tubes passing through the partition plate 10, and both ends of the guide tubes extend toward the bottom wall of the first tank body 1, from the bottom wall of the first tank body 1 to the opening of the first tank body 1, the multiple guide tubes provided on the partition plate 10 are respectively the first guide tube 100, the second guide tube 101 and the third guide tube 102; the opening of the third guide tube 102 is higher than the second guide tube 101, and the opening of the second guide tube 101 is higher than the first guide tube 100.

[0042] The first tank body 1 , the second tank body 2 and the third tank body 3 have the same size. This application describes the tank body with a height of 4 meters as an example.

[0043] The first trough body 1, the second trough body 2 and the third trough body 3 are arranged in sequence; the number of the first trough body 1 and the second trough body 2 can be two or even three, one first trough body 1 and one second trough body 2 are correspondingly arranged, and the side wall of the third trough body 3 avoiding the first liquid outlet 31 can be used to communicate with the second trough body 2, thereby accelerating the overall processing rate of the slurry.

[0044] An agitator can be provided at the bottom of the first cavity 11. The blades of the agitator are in contact with the bottom wall of the first cavity 11 and rotate slowly to prevent solid impurities (mainly clay and silt) deposited at the bottom of the first cavity 11 from solidifying and becoming difficult to flow out of the first discharge port 14, and also to prevent solid impurities from adhering to the bottom wall of the first cavity 11.

[0045] The first cavity 11 is provided with a feeding device for feeding flocculants into the ore pulp. The output port of the feeding device is close to the first liquid inlet 13. The flocculants are fed into the ore pulp that has just entered the first cavity 11. The ore pulp that has just entered the first cavity 11 has a certain kinetic energy and can push itself and the flocculant, so that the ore pulp can fully contact with the flocculant, making it easier for solid impurities in the ore pulp to settle, thereby improving the settling effect of the ore pulp in the first cavity 11.

[0046] The first discharge port 14 can be connected to a plunger pump through a pipeline, so that the solid impurities in the first cavity 11 can be extracted relatively quickly by the plunger pump.

[0047] The first, second and third flow conduits 100 , 101 and 102 are U-shaped structures. The places where the first, second and third flow conduits 100 , 101 and 102 pass through the partition plate 10 are the highest points of the first, second and third flow conduits 100 , 101 and 102 .

[0048] The bottom end of the partition plate 10 is connected to the bottom wall of the first tank body 1 .

[0049] The bottoms of the second cavity 12, the second tank body 2 and the third tank body 3 may be provided with pipes for extracting the sediment deposited at the bottom.

[0050] The partition plate 10 divides the internal space of the first tank body 1 into a first cavity 11 and a second cavity 12. The side wall of the first cavity 11 is provided with a liquid inlet 13 for slurry injection and a first discharge port 14 for mud and sand to flow out. The slurry is settled in the first cavity 11 after passing through the liquid inlet 13. The solid impurities are located in the lower part of the liquid in the first cavity 11, and the liquid is located in the upper part of the liquid in the first cavity 11. The second tank body 2 is connected to the second cavity 12 through the first overflow port 20, and the second tank body 2 is connected to the third tank body 3 through the second overflow port 30. The third tank body 3 is connected to the second cavity 12 through the first overflow port 20. A first liquid outlet 31 is provided, and the liquid in the second cavity 12 can enter the second tank body 2 and the third tank body 3 through the first overflow port 20 and the second overflow port 30 in sequence. The liquid settles again in the second tank body 2 and becomes clarified water before entering the third tank body 3. The third tank body 3 delivers the clarified water to subsequent equipment (such as circulating water treatment equipment) through the first liquid outlet 31; the multiple guide pipes provided on the partition plate 10 are the first guide pipe 100, the second guide pipe 101 and the third guide pipe 102; the opening of the third guide pipe 102 is higher than that of the second guide pipe. The opening of the second flow conduit 101 is higher than the first flow conduit 100. When the slurry thickening tank provided by the present application starts to work, the slurry is injected into the first cavity 11 through the liquid inlet 13. The liquid level of the liquid in the first cavity 11 begins to rise gradually. When the liquid level in the first cavity 11 is above the opening of the first flow conduit 100 in the first cavity 11, the first conduit draws the liquid in the surface area of ​​the first cavity 11 into the second cavity 12 through the siphon effect, so that the liquid level in the second cavity 12 rises accordingly. When the liquid level in the first cavity 11 and the second cavity 12 are above the opening of the first flow conduit 100 in the first cavity 11, the first conduit draws the liquid in the surface area of ​​the first cavity 11 into the second cavity 12 through the siphon effect, so that the liquid level in the second cavity 12 rises accordingly. When the liquid level in the cavity 12 is higher than the first conduit, the first conduit stops draining, and the liquid level in the first cavity 11 continues to rise. When the liquid level in the first cavity 11 submerges the opening of the second flow conduit 101 in the first cavity 11, the second conduit draws the liquid from the surface area of ​​the first cavity 11 into the second cavity 12 through the siphon effect, causing the liquid level in the second cavity 12 to rise accordingly. When the liquid levels in the first cavity 11 and the second cavity 12 are higher than the second conduit, the second conduit stops draining, and the liquid level in the first cavity 11 continues to rise.When the liquid level in the first cavity 11 is above the opening of the third conduit 102 in the first cavity 11, the third conduit draws the liquid in the surface area of ​​the first cavity 11 into the second cavity 12 through the siphon effect, causing the liquid level in the second cavity 12 to rise accordingly. When the liquid level in the second cavity 12 reaches the height of the third conduit 102, the liquid level in the second cavity 12 stops rising, and the liquid level in the first cavity 11 also stops rising and maintains stability. The first conduit 100, the second conduit 101 and the third conduit 102 rise with the liquid levels in the first cavity 11 and the second cavity 12. The first overflow port 20 is opened sequentially as the first overflow port 20 rises, shortening the distance the liquid falling into the second chamber 12 needs to fall after passing through each guide pipe. This shortens the time it takes for the liquid to accelerate, resulting in a smaller kinetic energy for the liquid falling into the second chamber 12. This reduces the natural sedimentation of the liquid already in the second chamber 12, allowing the liquid in the second chamber 12 to begin to stratify due to sedimentation by the time it reaches the first overflow port 20. The area near the first overflow port 20 contains water with a lower solid impurity content, thereby improving the operating performance of the slurry thickener provided by this application within a short period of time after its initial operation and enhancing the quality of the treated liquid.

[0051] According to some embodiments of the present application, optionally, Figure 6 As shown, the first flow guide 100 includes an inlet section 1000, an outlet section 1001 and a connecting section 1002. The connecting section 1002 is arc-shaped and passes through the partition plate 10. The inlet section 1000 is located in the first cavity 11, and the outlet section 1001 is located in the second cavity 12. The connecting section 1002 connects the inlet section 1000 and the outlet section 1001. The inlet section 1000 and the outlet section 1001 both extend along the height direction of the partition plate 10.

[0052] The inlet section 1000 and the outlet section 1001 can be detachably connected to the connecting section 1002. When the liquid inlet speed of the liquid inlet 13 is fast, causing the liquid level in the first cavity 11 to rise too quickly, the inlet sections 1000 of the second and third flow guide tubes 101, 102 can be replaced with longer inlet sections 1000. When the liquid in the first cavity 11 rises to the opening of the inlet section 1000 of the second flow guide tube 101 (or the third flow guide tube 102) and the liquid level in the second cavity 12 has not yet submerged the first flow guide tube 100 (or the second flow guide tube 101), the liquid can be transported to the second cavity 12 through the two flow guide tubes, thereby avoiding the situation where the liquid level in the first cavity 11 rises too quickly, causing the three flow guide tubes to open at the same time, causing the kinetic energy of the part of the liquid falling into the second cavity 12 to be too large.

[0053] Both the inflow section 1000 and the outflow section 1001 extend along the height direction of the partition plate 10, making the flow path of the liquid in the inflow section 1000 and the outflow section 1001 the shortest, thereby accelerating the speed at which the first guide pipe 100, the second guide pipe 101, and the third guide pipe 102 introduce the liquid in the first cavity 11 into the second cavity 12, enabling the liquid level in the second cavity 12 to rise in a timely manner under the replenishment of the liquid in the first cavity 11, and reducing the height difference between the two.

[0054] According to some embodiments of the present application, optionally, as Figure 6 shown, in the height direction of the partition plate 10, the size of the inflow section 1000 is h1, and the size of the outflow section 1001 is h2, satisfying h1 > h2.

[0055] When h1 < h2, when the liquid level in the first cavity 11 contacts the inflow section 1000, the height difference between the liquid level in the first cavity 11 and the liquid level in the second cavity 12 is relatively large. When the liquid enters the second cavity 12 through the connecting section 1002, the falling distance of the liquid is relatively long, resulting in a relatively large kinetic energy of the liquid falling into the second cavity 12, which affects the sedimentation effect of the solid impurities in the liquid in the second cavity 12;

[0056] When h1 = h2, the liquid level in the second cavity 12 will quickly rise to exceed the opening of the outflow section 1001 away from the connecting section 1002, reducing the pressure difference at both ends of the guide pipe, thereby causing the speed at which the guide pipe introduces the liquid in the first cavity 11 into the second cavity 12 to slow down.

[0057] When the liquid level in the second cavity 12 passes over the opening of the outflow section 1001, the pressure difference between the opening of the inflow section 1000 and the opening of the outflow section 1001 will decrease, that is, the force pushing the liquid in the first cavity 11 into the inflow section 1000 will decrease, and further cause the rate at which the liquid enters the second cavity 12 from the first cavity 11 to slow down; when the size of the inflow section 1000 is h1 and the size of the outflow section 1001 is h2, and h1 > h2, after the liquid in the first cavity 11 covers the opening of the inflow section 1000, the pressure difference between the opening of the inflow section 1000 and the opening of the outflow section 1001 will press the liquid in the first cavity 11 into the inflow section 1000, and then pass through the connecting section 1002 and the outflow section 1001 in sequence to reach the second cavity 12. The liquid level in the second cavity 12 needs to rise for a period of time before covering the opening of the outflow section 1001, so that the liquid in the first cavity 11 can enter the second cavity 12 at a relatively high rate for a long time, improving the liquid transfer rate, and at the same time avoiding the situation where the liquid in the first cavity 11 cannot enter the second cavity 12 in time, resulting in the liquid level in the first cavity 11 rising too fast and multiple guide pipes being opened simultaneously.

[0058] According to some embodiments of the present application, optionally, Figures 2 to 4 、 Figure 6 As shown, the projections of the first flow guiding pipe 100 , the second flow guiding pipe 101 and the third flow guiding pipe 102 on the bottom wall of the first trough body 1 are staggered with each other.

[0059] The projections of the first flow guiding pipe 100 , the second flow guiding pipe 101 and the third flow guiding pipe 102 on the bottom wall of the first tank body 1 may be arranged in sequence.

[0060] When there are multiple first flow guiding tubes 100 , second flow guiding tubes 101 and third flow guiding tubes 102 , the projections of the multiple flow guiding tubes on the bottom wall of the first trough body 1 do not overlap.

[0061] When the liquid in the first cavity 11 enters the second cavity 12 through the first, second, and third flow conduits 100, 101, and 102, the liquid in the first cavity 11 flows toward the openings of the first, second, and third flow conduits 100, 101, and 102. The flow of the liquid drives solid impurities at the bottom of the first cavity 11 to move toward the first, second, and third flow conduits 101, 102. The projections of the first, second, and third flow conduits 100, 101, and 102 on the bottom wall of the first trough body 1 are staggered, so that the solid impurities in the first cavity 11 do not continuously move to the same location, thereby reducing the risk of a large amount of solid material being deposited in one location and solidifying and difficult to discharge.

[0062] According to some embodiments of the present application, optionally, after the slurry in the first cavity 11 settles, the upper layer is a liquid area, and the lower layer is a mud and sand area. The first discharge port 14 is arranged opposite the mud and sand area, and the first discharge port 14 is close to the bottom wall of the first cavity 11. The liquid inlet 13 is arranged opposite the liquid area, and the liquid inlet 13 is close to the mud and sand area.

[0063] The portion where the liquid zone and the sediment zone meet is a turbid liquid zone with suspended solid particles, and the liquid inlet 13 can be arranged facing the turbid liquid zone.

[0064] The first discharge port 14 is arranged opposite to the mud and sand area, and the first discharge port 14 is close to the bottom wall of the first cavity 11, so that the first discharge port 14 can extract the mud and sand and other solid impurities in the first cavity 11, and the solid impurities in the first cavity 11 are not easily attached to the bottom wall of the first cavity 11. The liquid inlet 13 is arranged opposite to the liquid area, and the liquid inlet 13 is close to the mud and sand area, so that the slurry newly entered into the first cavity 11 can begin to settle near the mud and sand area, avoiding the newly entered liquid from driving the solid impurities in the mud and sand area to flow, and also avoiding the solid impurities in the newly entered liquid from making the relatively clean liquid in the upper layer of the liquid area turbid.

[0065] According to some embodiments of the present application, optionally, Figures 2 to 4As shown, there are multiple first flow conduits 100 , multiple second flow conduits 101 and multiple third flow conduits 102 , which are all arranged at intervals along the length direction of the partition plate 10 .

[0066] A first flow guide tube 100, a second flow guide tube 101 and a third flow guide tube 102 form a group, and multiple first flow guide tubes 100, multiple second flow guide tubes 101 and multiple third flow guide tubes 102 can be arranged in groups along the length direction of the partition plate 10 to avoid the situation where when the liquid level in the first cavity 11 reaches the opening of a certain flow guide tube, multiple flow guide tubes at similar positions simultaneously transfer the liquid, resulting in the liquid in the first cavity 11 flowing too fast, driving the solid impurities at the bottom of the first cavity 11 to move toward the flow guide tube and deposit.

[0067] There are multiple first flow conduits 100, multiple second flow conduits 101, and multiple third flow conduits 102, allowing multiple first flow conduits 100, multiple second flow conduits 101, or multiple third flow conduits 102 to transfer liquid simultaneously, thereby accelerating the speed at which the liquid in the first cavity 11 enters the second cavity 12 and avoiding an excessively large height difference between the liquid level in the first cavity 11 and the liquid level in the second cavity 12.

[0068] According to some embodiments of the present application, optionally, Figures 3 to 5 As shown, the bottom wall of the second trough body 2 is provided with a conduit 21, which is arranged close to the first trough body 1, and a conduit cavity 210 is provided on the inner side of the conduit 21. The height of the two ends of the conduit cavity 210 gradually decreases to the height of the center of the conduit cavity 210. The center of the conduit cavity 210 is connected with the second liquid outlet 211, and the second liquid outlet 211 extends toward the opening of the second trough body 2; there are two first overflow ports 20, and the two first overflow ports 20 are respectively connected with the two ends of the conduit cavity 210 through pipes, and the second liquid outlet 211 is lower than the second overflow port 30.

[0069] The width of the confluence cavity 210 from both ends to the center is similar.

[0070] The bottom wall of the confluence chamber 210 can be gradually lowered in height from the two ends of the confluence chamber 210 to the center of the confluence chamber 210. The liquid entering the confluence chamber 210 through the pipeline from the first overflow port 20 will first impact the bottom wall at both ends of the confluence chamber 210. When the liquid impacts the bottom wall of the confluence chamber 210, the solid impurities it carries will be thrown to the bottom wall at both ends of the confluence chamber 210. The inclined bottom wall can guide these impurities to move to the center of the confluence chamber 210 for easy recycling and processing.

[0071] The bottom wall of the second trough body 2 is provided with a confluence piece 21, and a confluence cavity 210 is provided inside the confluence piece 21. The height of the two ends of the confluence cavity 210 gradually decreases to the center of the confluence cavity 210, and the center of the confluence cavity 210 is connected to the second liquid outlet 211; there are two first overflow ports 20, and the two first overflow ports 20 are respectively connected to the two ends of the confluence cavity 210 through pipes; the liquid in the second cavity 12 enters the two ends of the confluence cavity 210 through the two first overflow ports 20 and the pipe, and then flows along the confluence cavity 210 to the center of the confluence cavity 210. The two liquids entering from the two ends of the confluence cavity 210 have opposite flow directions. The two liquids will collide and converge at the center of the confluence chamber 210. The collision of the two liquids consumes the kinetic energy of the two liquids. On the one hand, the kinetic energy of the liquid is reduced and it is difficult to continue to drive the solid particles to move. The solid particles in the liquid are able to settle to the center of the confluence chamber 210 under the action of gravity, thereby enhancing the removal effect of solid impurities in the liquid; on the other hand, the liquid in the confluence chamber 210 can enter the second tank body 2 through the second liquid outlet 211 at a relatively slow speed, thereby avoiding the situation where the kinetic energy of the new liquid entering the second tank body 2 is large and drives the solid impurities at the bottom of the second tank body 2 to float up, affecting the sedimentation effect of the liquid in the second tank body 2.

[0072] According to some embodiments of the present application, optionally, Figure 5 As shown, the opening of the second liquid outlet 211 at one end away from the confluence cavity 210 is not lower than the two ends of the confluence cavity 210 .

[0073] The liquid flowing to the center of the confluence cavity 210 is prevented from entering the second tank body 2 through the second liquid outlet 211 before the counteraction is performed, thereby ensuring that the kinetic energy of the liquid entering the second tank body 2 is relatively small.

[0074] According to some embodiments of the present application, optionally, Figures 4 and 5 As shown, a dust collecting groove 212 is further provided at the center of the confluence cavity 210 . The dust collecting groove 212 extends toward the bottom wall of the second trough body 2 along the height direction of the second trough body 2 , and the dust collecting groove 212 is connected to the recovery pipe.

[0075] The dust collecting trough 212 can pass through the bottom wall of the second trough body 2, so that the bottom wall of the dust collecting trough 212 used to hold solid impurities is farther away from the area where liquid is counteracted in the confluence cavity 210, thereby preventing solid impurities that have fallen into the dust collecting trough 212 from being rolled up by the counteracting liquid.

[0076] A dust collecting trough 212 is also provided at the center of the confluence chamber 210, which can collect solid impurities that fall after liquid flushing in the confluence chamber 210, and the dust collecting trough 212 is connected to the recovery pipe, which can timely recover the solid impurities in the dust collecting trough 212, avoiding excessive solid impurities from accumulating and solidifying in the dust collecting trough 212, which makes subsequent cleaning more troublesome, and also saves the trouble of removing the reflux component to clean the solid impurities inside it.

[0077] According to some embodiments of the present application, optionally, a radar sensor for detecting the liquid level is provided in the third tank 3 .

[0078] A radar level sensor is a device that uses radar waves to detect liquid level height. It has the advantages of high precision, high stability and the ability to monitor liquid level in real time.

[0079] A radar sensor for detecting the liquid level is provided in the third tank body 3. The radar sensor can quickly and accurately detect the liquid level in the third tank body 3, allowing the operator to promptly open the first liquid outlet 31 or shut down the slurry thickening tank provided in this application, thereby preventing the liquid level in the third tank body 3 from being higher than the second overflow port 30, causing liquid backflow.

[0080] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A pulp thickening tank, characterized in that: include: A first tank body is provided with a partition plate inside, the partition plate divides the internal space of the first tank body into a first cavity and a second cavity, and a side wall of the first cavity is provided with a liquid inlet for slurry injection and a first discharge port for sediment discharge; a second tank body and a third tank body, wherein the second tank body is connected to the second cavity through a first overflow port, the second tank body is connected to the third tank body through a second overflow port, and the third tank body is provided with a first liquid outlet; The partition plate is provided with a plurality of guide pipes, each of which is a curved pipe passing through the partition plate. Both ends of the guide pipe extend toward the bottom wall of the first trough body, extending from the bottom wall of the first trough body to the opening of the first trough body. The plurality of guide pipes provided on the partition plate are respectively a first guide pipe, a second guide pipe and a third guide pipe. The opening of the third flow guiding tube is higher than that of the second flow guiding tube, and the opening of the second flow guiding tube is higher than that of the first flow guiding tube.

2. A slurry thickening tank according to claim 1, characterized in that: The first flow guide pipe includes an inlet section, an outlet section and a connecting section. The connecting section is arc-shaped and passes through the partition plate. The inlet section is located in the first cavity, and the outlet section is located in the second cavity. The connecting section connects the inlet section and the outlet section. Both the inlet section and the outlet section extend along the height direction of the partition plate.

3. A pulp thickening tank according to claim 2, characterized in that: In the height direction of the partition plate, the size of the inlet section is h1, and the size of the outlet section is h2, satisfying h1>h2.

4. A pulp thickening tank according to claim 1, characterized in that: The projections of the first flow guiding pipe, the second flow guiding pipe and the third flow guiding pipe on the bottom wall of the first trough body are staggered with each other.

5. The pulp thickening tank according to claim 1, characterized in that: After the slurry in the first cavity settles, the upper layer is a liquid area and the lower layer is a mud and sand area. The first discharge port is arranged opposite to the mud and sand area, and the first discharge port is close to the bottom wall of the first cavity. The liquid inlet is arranged opposite to the liquid area, and the liquid inlet is close to the mud and sand area.

6. The pulp thickening tank according to claim 1, characterized in that: There are multiple first flow guide tubes, multiple second flow guide tubes and multiple third flow guide tubes, and the multiple first flow guide tubes, multiple second flow guide tubes and multiple third flow guide tubes are arranged at intervals along the length direction of the partition plate.

7. The pulp thickening tank according to claim 1, characterized in that: The bottom wall of the second trough body is provided with a manifold, which is arranged close to the first trough body. A manifold cavity is provided inside the manifold. The height of the manifold cavity gradually decreases from the two ends to the center of the manifold cavity. The center of the manifold cavity is connected to the second liquid outlet, and the second liquid outlet extends toward the opening of the second trough body. There are two first overflow ports, and the two first overflow ports are connected to the two ends of the confluence cavity through pipelines respectively. The second liquid outlet is lower than the second overflow port.

8. The pulp thickening tank according to claim 7, characterized in that: An opening of the second liquid outlet at one end away from the confluence cavity is not lower than two ends of the confluence cavity.

9. The pulp thickening tank according to claim 7, characterized in that: A dust collecting trough is further provided at the center of the confluence cavity. Along the height direction of the second trough body, the dust collecting trough extends toward the bottom wall of the second trough body, and the dust collecting trough is communicated with the recovery pipe.

10. The pulp thickening tank according to claim 1, characterized in that: The third tank is provided with a radar sensor for detecting the liquid level.

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