Ore pulp thickening tank

Abstract

The invention relates to an ore pulp thickening tank, and belongs to the technical field of ore pulp treatment. The ore pulp 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 and divides the inner space of the first tank body into a first cavity and a second cavity, and the side wall of the first cavity is provided with a liquid inlet used for injecting ore pulp and a first discharging port used for discharging silt; 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, the two ends of each flow guide pipe extend towards the bottom wall of the first tank body, and the flow guide pipes arranged on the partition plate are the first flow guide pipe, the second flow guide pipe and the third flow guide pipe respectively from the bottom wall of the first tank body to the opening of the first tank body. The ore pulp thickening tank provided by the embodiment of the invention 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] The slurry thickener, also known as the thickener, is a solid-liquid separation equipment based on gravity sedimentation. It is mainly used to concentrate the solid particles in the suspension by gravity sedimentation, so as to separate the 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 tanks. 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 sedimentation tank. In the process of the trough moving to the second sedimentation tank, the liquid falls a long distance, and the liquid can accelerate in the air for a long time, resulting in the liquid containing greater kinetic energy when falling 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, resulting in more solid impurities in the liquid output from the slurry thickening tank during the initial 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 the present application is to provide a slurry thickening tank to address the above-mentioned problems, which can improve the water quality of the obtained liquid and thus improve the above-mentioned 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 arranged inside the first tank body, and the partition plate 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 slurry injection and a first discharge port for mud and sand to flow out; the second tank body is connected with the second cavity through a first overflow port, the second tank body is connected 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 guide pipes, the guide pipes 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, and the plurality of 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.

[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 flowing out 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 sequence, 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 guide pipe 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 guide pipe, the first guide pipe 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 flow guide tube in the first cavity, the second catheter sucks 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 flow guide tube in the first cavity, the third catheter sucks 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 flow guide tube, the liquid in the second cavity The liquid level in the first cavity stops rising, and the liquid level in the first cavity also stops rising and maintains stability. The first guide tube, the second guide tube and the third guide tube are opened in sequence as the liquid levels in the first cavity and the second cavity rise, so that the liquid falling into the second cavity needs to fall a shorter distance after passing through each guide tube, thereby shortening the time for the liquid to accelerate, and the liquid falling into the second cavity has a smaller kinetic energy, which is not easy to affect the natural sedimentation process of the liquid in the second cavity. When the liquid in the second cavity rises to the first overflow port, it has already begun to be stratified up and down due to sedimentation, and the area near the first overflow port is water with less solid impurities content, 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, and the outlet section is located in the second cavity. The connecting section connects the inlet section and the outlet section, and 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 flow path of the liquid in the inlet section and the outlet section is the shortest, thereby accelerating the speed at which the first flow guide tube, the second flow guide tube and the third flow guide tube introduce the liquid in the first cavity into the second cavity, allowing the liquid level in the second cavity to rise in time with the supplement 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 flow section is h1, and the size of the outlet flow 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 to enter the inflow section will decrease, thereby causing the rate at which the liquid enters 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 is satisfied, after the liquid in the first cavity submerges the opening of the inflow section, the pressure difference between 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 turn to reach the second cavity, and the liquid level in the second cavity needs to rise for a period of time before it submerges the opening of the outflow section, so that the liquid in the first cavity can enter the second cavity at a higher rate for a longer time, thereby improving the transfer rate of the liquid, and at the same time 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 opening multiple guide tubes at the same time.

[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 slot 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, and 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, so that the solid impurities in the first cavity will not continue to move to the same place, thereby reducing the risk of a large amount of solid material being deposited in one place and solidified 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 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.

[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, the number of the first flow guide tube, the second flow guide tube and the third flow guide tube are all multiple, and the multiple first flow guide tubes, the multiple second flow guide tubes and the multiple third flow guide tubes are arranged at intervals along the length direction of the partition plate.

[0017] In the technical solution of the embodiment of the present application, there are multiple first flow guide tubes, multiple second flow guide tubes and multiple third flow guide tubes, 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, speed up the speed at which the liquid in the first cavity enters the second cavity, and avoid 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 conduit cavity gradually decreases from the two ends 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. There are two first overflow ports, 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 heights of the two ends of the confluence cavity gradually decrease to the height at the center of the confluence cavity, and the center of the confluence cavity is connected with the second liquid outlet; the number of first overflow ports is two, and the two first overflow ports are respectively connected with the two ends of the confluence cavity through pipes; 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, and the two liquids entering from the two ends of the confluence cavity have opposite flow directions and will flow in the middle 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 relatively large, driving the solid impurities at the bottom of the second trough body to float up and 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 chamber is not lower than two ends of the confluence chamber.

[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 small.

[0022] In some embodiments, a dust collecting groove is further provided at the center of the confluence cavity. The dust collecting groove extends toward the bottom wall of the second groove body along the height direction of the second groove body, and the dust collecting groove 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 that fall after liquid flushing in the confluence chamber, and the dust collecting trough is connected to the recovery pipe, so that the solid impurities in the dust collecting trough can be recovered in time, 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 disposed 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 so that the operator can promptly open the first liquid outlet or shut down 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 apparent from the description below, or will be learned through the 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 drawings required for use in the embodiments will be briefly introduced below. 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 related drawings can be obtained based on these drawings without paying creative work.

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

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

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

[0031] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0032] Figure 5 for Figure 3 Sectional view at the middle BB;

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

[0034] Icons: 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; 21-convergence piece; 210-convergence cavity; 211-second liquid outlet; 212-dust collecting trough; 3-third trough body; 30-second overflow; 31-first liquid outlet. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work 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 meaning as those commonly understood by technicians in the technical field of this application; 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" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. 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 and secondary relationship.

[0037] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood 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 clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

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

[0041] According to some embodiments of the present application, optionally, Figure 1 to Figure 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 arranged 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 a plurality of guide tubes, the guide tubes are curved tubes passing through the partition plate 10, 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 plurality of guide tubes arranged 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, and the present application describes the tank body with a height of 4 meters as an example.

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

[0044] An agitator may be provided at the bottom of the first cavity 11, and 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 being difficult to flow out of the first discharge port 14 after solidification, and 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 flocculant into the ore pulp, and the output port of the feeding device is close to the first liquid inlet 13. The flocculant is 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, which 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 may be connected to a plunger pump through a pipeline, and the solid impurities in the first cavity 11 may be extracted relatively quickly through the plunger pump.

[0047] The first flow conduit 100 , the second flow conduit 101 and the third flow conduit 102 are in a U-shaped structure, and the place where the first flow conduit 100 , the second flow conduit 101 and the third flow conduit 102 pass through the partition plate 10 is the highest point of the first flow conduit 100 , the second flow conduit 101 and the third flow conduit 102 .

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

[0049] The bottom of the second cavity 12, the second tank body 2 and the third tank body 3 may be provided with pipelines 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 at the lower part of the liquid in the first cavity 11, and the liquid is located at 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 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 enters the third tank body 3 after becoming clarified water. The third tank body 3 delivers the clarified water to subsequent equipment (such as circulating water treatment equipment, etc.) through the first liquid outlet 31. The plurality of guide pipes provided on the partition plate 10 are respectively a first guide pipe 100, a second guide pipe 101 and a 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, slurry is injected into the first cavity 11 through the liquid inlet 13, and 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 sucks 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 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 is higher than the opening of the second flow guide tube 101 in the first cavity 11, the second conduit sucks 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 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 flow 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, so that the liquid level in the second cavity 12 rises accordingly. When the liquid level in the second cavity 12 reaches the height of the third flow 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 flow conduit 100, the second flow conduit 101 and the third flow conduit 102 rise with the liquid levels in the first cavity 11 and the second cavity 12. The liquid in the second cavity 12 has a shorter distance to fall after passing through each guide pipe, thereby shortening the time for the liquid to accelerate, and making the liquid in the second cavity 12 have a smaller kinetic energy, which is not easy to affect the natural sedimentation process of the liquid in the second cavity 12. When the liquid in the second cavity 12 rises to the first overflow port 20, it has begun to be stratified up and down due to sedimentation, and the area near the first overflow port 20 is water with less solid impurities, which improves the operating effect of the slurry thickening tank provided by the present application within a period of time after the initial operation, and improves the water 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, resulting in the liquid level in the first cavity 11 rising too fast, the inlet sections 1000 of the second and third flow guide tubes 101, 102 can be replaced with longer inlet sections 1000, so that 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 of the liquid 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 fast, resulting in the three flow guide tubes being opened at the same time, causing the kinetic energy of part of the liquid falling into the second cavity 12 to be too large.

[0053] The inlet section 1000 and the outlet section 1001 both extend in the height direction of the partition plate 10, so that the liquid flows in the inlet section 1000 and the outlet section 1001 in the shortest path, thereby accelerating the speed at which the first guide tube 100, the second guide tube 101 and the third guide tube 102 introduce the liquid in the first cavity 11 into the second cavity 12, so that the liquid level in the second cavity 12 can rise in time with the replenishment of the liquid in the first cavity 11, thereby reducing the height difference between the two.

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

[0055] When h1<h2, when the liquid surface of the liquid in the first cavity 11 contacts the inlet section 1000, the height difference between the height of the liquid surface in the first cavity 11 and the height of the liquid surface in the second cavity 12 is large, and when the liquid enters the second cavity 12 through the connecting section 1002, the liquid falls for a long distance, resulting in the liquid falling into the second cavity 12 having a large kinetic energy, 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 rise quickly 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 tube, thereby slowing down the speed at which the guide tube introduces the liquid in the first cavity 11 into the second cavity 12.

[0057] When the liquid level in the second cavity 12 passes the opening of the outlet section 1001, the pressure difference between the opening of the inlet section 1000 and the opening of the outlet section 1001 will decrease, that is, the force pushing the liquid in the first cavity 11 into the inlet section 1000 will decrease, thereby causing the rate at which the liquid enters the second cavity 12 from the first cavity 11 to slow down; the size of the inlet section 1000 is h1, and the size of the outlet section 1001 is h2. When h1>h2, after the liquid in the first cavity 11 submerges the opening of the inlet section 1000, the opening of the inlet section 1000 and the opening of the outlet section 1001 will be The pressure difference at the opening will press the liquid in the first cavity 11 into the inlet section 1000, and then pass through the connecting section 1002 and the outlet section 1001 to reach the second cavity 12. The liquid level in the second cavity 12 needs to rise for a period of time before it will cover the opening of the outlet section 1001, so that the liquid in the first cavity 11 can enter the second cavity 12 at a higher rate for a longer time, thereby improving the transfer rate of the liquid and preventing the liquid in the first cavity 11 from failing to enter the second cavity 12 in time, resulting in the liquid level rising too fast and opening multiple guide tubes at the same time.

[0058] According to some embodiments of the present application, optionally, Figure 2 to Figure 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 tank 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 tank body 1 do not overlap.

[0061] When the liquid in the first cavity 11 enters the second cavity 12 through the first flow conduit 100, the second flow conduit 101 and the third flow conduit 102, the liquid in the first cavity 11 will flow toward the openings of the first flow conduit 100, the second flow conduit 101 and the third flow conduit 102. The flow of the liquid will drive the solid impurities at the bottom of the first cavity 11 to move toward the first flow conduit 100, the second flow conduit 101 and the third flow conduit 102. The projections of the first flow conduit 100, the second flow conduit 101 and the third flow conduit 102 on the bottom wall of the first trough body 1 are staggered with each other, so that the solid impurities in the first cavity 11 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 solidified 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 to the mud and sand area, and the first discharge port 14 is close to the bottom wall of the first cavity 11, and the liquid inlet 13 is arranged opposite to the liquid area, and the liquid inlet 13 is close to the mud and sand area.

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

[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 easy to adhere to the bottom wall of the first cavity 11, and 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 entering the first cavity 11 can start 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, Figure 2 to Figure 4As shown, the number of the first flow guide tube 100 , the second flow guide tube 101 and the third flow guide tube 102 are all multiple, and the multiple first flow guide tubes 100 , the multiple second flow guide tubes 101 and the multiple third flow guide tubes 102 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, so that multiple first flow conduits 100, multiple second flow conduits 101 or multiple third flow conduits 102 can transfer liquid at the same time, speed up the speed at which the liquid in the first cavity 11 enters the second cavity 12, and avoid excessive 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, Figure 3 to Figure 5 As shown, a confluence piece 21 is provided on the bottom wall of the second trough body 2, and the confluence piece 21 is provided close to the first trough body 1. A confluence cavity 210 is provided on the inner side of the confluence piece 21. The heights of the two ends of the confluence cavity 210 gradually decrease to the height at the center of the confluence cavity 210. The center of the confluence 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 confluence 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 that enters the confluence chamber 210 through the pipeline from the first overflow port 20 will first impact the bottom wall at the two 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 the two 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 tank 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 height of the center of the confluence cavity 210, and the center of the confluence cavity 210 is connected with the second liquid outlet 211; there are two first overflow ports 20, and the two first overflow ports 20 are respectively connected with 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 flow directions of the two liquids entering from the two ends of the confluence cavity 210 are opposite. 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 can settle to the center of the confluence chamber 210 under the action of gravity, thereby enhancing the removal effect of the 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 preventing the liquid newly entering the second tank body 2 from having a large kinetic energy that drives the solid impurities at the bottom of the second tank body 2 to float up and affect 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 easily entering the second tank body 2 through the second liquid outlet 211 before the counter-flow occurs, 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, Figure 4-5 As shown, a dust collecting groove 212 is also provided at the center of the confluence cavity 210 . The dust collecting groove 212 extends toward the bottom wall of the second tank body 2 along the height direction of the second tank body 2 , and the dust collecting groove 212 is connected to the recovery pipe.

[0075] The dust collecting groove 212 can pass through the bottom wall of the second groove body 2, so that the bottom wall of the dust collecting groove 212 used to hold solid impurities is farther away from the area for liquid offset in the confluence cavity 210, thereby preventing the solid impurities that have fallen into the dust collecting groove 212 from being rolled up by the offset 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, so that the solid impurities in the dust collecting trough 212 can be recovered in time, 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] The radar liquid level sensor is a device that uses radar waves to detect the liquid level. It has the advantages of high precision, high stability and the ability to monitor the liquid level in real time.

[0079] A radar sensor for detecting the liquid level is provided in the third tank body 3, which can quickly and accurately detect the liquid level of the third tank body 3 so that the operator can promptly open the first liquid outlet 31 or shut down the slurry thickening tank provided in the present application, thereby avoiding the situation where the liquid level in the third tank body 3 is 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 parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned 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 includes all technical solutions falling within the scope of the claims.

Claims

1. A pulp thickening tank, characterized in that: include: A first tank body, wherein a partition plate is disposed inside the first tank body, wherein 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 mud and sand to flow out; 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; Wherein, the partition plate is provided with a plurality of guide pipes, the guide pipes are curved pipes passing through the partition plate, both ends of the guide pipes extend toward the bottom wall of the first trough body, from the bottom wall of the first trough body to the opening of the first trough body, and 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 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 pulp 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, the outlet section is located in the second cavity, the connecting section connects the inlet section and the outlet section, and the inlet section and the outlet section both 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. A 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. A pulp thickening tank according to claim 1, characterized in that: The number of the first flow guide tube, the second flow guide tube and the third flow guide tube are all multiple, and the multiple first flow guide tubes, the multiple second flow guide tubes and the multiple third flow guide tubes are arranged at intervals along the length direction of the partition plate.

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

8. A pulp thickening tank according to claim 7, characterized in that: The 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. A pulp thickening tank according to claim 7, characterized in that: A dust collecting groove is also arranged at the center of the confluence cavity. The dust collecting groove extends toward the bottom wall of the second groove body along the height direction of the second groove body, and the dust collecting groove is communicated with the recovery pipe.

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

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