Thickener with T-shaped bin body

Abstract

The T-shaped bin thickener comprises a bin body, a mixing well and a smashing piece, the bin body is vertically arranged and is in a groove shape, the bin body comprises an upper bin section, a middle bin section and a lower bin section which are sequentially in butt joint in the vertical direction, the upper bin section is thicker than the lower bin section, the mixing well is arranged in the upper bin section in a suspended mode, a discharging opening is formed in the lower end of the mixing well, and the smashing piece is arranged in the middle of the mixing well. An overflow port is formed in the side wall of the upper bin section, the mixing well is provided with a feeding pipe and a chemical feeding pipe which penetrate out of the bin body, the feeding pipe and the chemical feeding pipe are used for feeding ore pulp and a flocculating agent into the mixing well respectively, a slag discharging port is formed in the lower end of the lower bin section, and the mixing well is used for grading mineral aggregates in the ore pulp according to the particle size. And the crushing part is mounted on the bin body and is used for crushing the flocculation groups in the lower bin section so as to release water in the flocculation groups, clear water at the upper part in the bin body overflows through the overflow port, the mineral aggregates deposited at the lower end in the lower bin section are discharged through the slag discharge port, and the ore pulp treatment efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mineral concentrate, especially relates to a T-shaped bin body thickener. BACKGROUND

[0002] In the mining and dressing engineering, the ore dressing, the mine goaf filling and the dry drainage and dry stacking of tailings all involve the dewatering and concentrating process link of concentrate slurry and tailings slurry, at present, the rake thickener is generally used to implement the dewatering and concentrating of the concentrate slurry and tailings slurry, but due to the high price of the rake thickener, the poor convenience of operation and maintenance, and the frequent rake pressing accidents, therefore, the industry tries to design and apply a lot of structural types of vertical sand bins to replace the thickener. But the vertical sand bins of the existing structural types all have the following problems: one is that the processing capacity of the ore slurry is small, the settling rate is low, the flocculating agent consumption is too large to cause high cost, the sand bin underflow concentration is low, and the underflow sand discharge is not smooth, etc. The traditional deep cone thickener has a complex power rake structure, when the material layer height in the thickener is too high, the rake pressing accident is prone to occur, and in the running process, the power consumption is large. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a T-shaped bin body thickener which has simple structure and good thickening effect on mineral materials.

[0004] In order to achieve the above purpose, the technical scheme of the utility model is as follows: a T-shaped bin body thickener, comprising a bin body, a mixing well and a crushing element, the bin body is vertically arranged and is in the shape of a tank, the upper end of the bin body is open, the bin body comprises an upper bin section, a middle bin section and a lower bin section which are sequentially connected in the up-down direction, the upper bin section is thicker than the lower bin section, the middle bin section is in the shape of a horn, the mixing well is suspended in the middle part of the inner wall of the upper bin section, the lower end of the mixing well has a discharge port, the side wall of the upper bin section has an overflow port, the mixing well has a feeding pipe and a reagent pipe which pass out of the bin body, the feeding pipe is used to pass the ore slurry into the mixing well, the reagent pipe is used to pass the flocculating agent into the mixing well, the lower end of the lower bin section has a slag discharge port, the mixing well is used to classify the mineral materials in the ore slurry according to the particle size, and after the fine mineral materials are flocculated into flocculation groups by the flocculating agent, the fine mineral materials are discharged into the bin body together with the coarse mineral materials for settling, the crushing element is installed on the bin body, which is used to crush the flocculation groups in the lower bin section to release the water in the flocculation groups, the clear water in the upper part of the bin body is overflowed through the overflow port, and the mineral materials deposited in the lower end of the lower bin section are discharged through the slag discharge port.

[0005] The beneficial effects of the above technical solution are that: by setting a mixing well at the upper end in the bin body, and the ore pulp is fed into the mixing well for grading, so that the flocculating agent is only supplied to the fine ore, which can reduce the use amount of flocculating agent, and the fine ore is flocculated into flocculation groups, at this time the flocculation groups can be discharged into the bin body at the same time as the coarse ore for sedimentation, at this time the flocculation groups are settled with the coarse ore, and the flocculation groups contain more combined water, when the flocculation groups are settled to the middle part of the bin body, at this time the flocculation groups can be broken by the stirring piece to release the water, at this time the water will go up, and the fine ore wrapped in the coarse ore continues to settle with the coarse ore, which also makes the ore in the ore pulp quickly settle, and the bin body is set as T-shaped (i.e. the upper end of the bin body is thickened), which increases the settling area in the bin body and thus increases the processing capacity of the ore pulp for flocculation and dewatering, and the middle bin section is set as a horn shape, which can effectively prevent the ore pulp from depositing.

[0006] In the above technical solution, the bottom wall of the bin body is flat, a scraper mechanism is arranged on the inner bottom wall of the bin body, and a screw feeder is arranged at the lower end of the bin body and is connected to the discharge port.

[0007] The beneficial effects of the above technical solution are that: in this way, the slag at the bottom of the bin body is stirred by the scraper mechanism to be in a flow state, and is sent out through the discharge port by the screw feeder, which can avoid the deposition of ore in the inner bottom wall of the bin body and cause poor discharge.

[0008] In the above technical solution, the scraper mechanism includes a telescopic driving piece and a hollow scraper plate, the scraper plate is horizontally slidably mounted on the inner bottom wall of the bin body, the telescopic driving piece is mounted at the lower end of the bin body, the telescopic end of the telescopic driving piece is sealed and extends into the bin body, and is in transmission connection with the scraper plate, and the telescopic driving piece is used to drive the scraper plate to slide on the inner bottom wall of the bin body to disturb the ore to be in a flow state and to be extruded to the discharge port.

[0009] The beneficial effects of the above technical solution are that: in this way, the scraper plate reciprocally moves on the inner bottom wall of the bin body under the action of the telescopic driving piece to make the ore deposited at the bottom of the bin body in a flow state, so as to be discharged from the discharge port.

[0010] In the above technical solution, the bottom wall of the bin body is conical with the tip pointing downward, the discharge port is arranged at the lowest horizontal position of the bottom wall of the bin body, and a jetting piece is arranged on the bottom wall of the bin body, the jetting piece is used to jet fluid to the inner bottom of the bin body, so that the ore deposited at the inner bottom of the bin body flows along the inner bottom wall of the bin body and is discharged through the discharge port.

[0011] The beneficial effect of the above technical solution is that when the ore in the inner bottom of the bin is deposited and the slag is not discharged smoothly, the fluid can be injected into the inner bottom of the bin by the jet element, so that the ore in the bin can fall along the slope surface in a flow state and be discharged through the slag discharge port.

[0012] The jet element in the above technical solution includes a plurality of multi-dimensional nozzles embedded on the inner wall of the bin, and the multi-dimensional nozzles have a plurality of nozzle openings. The plurality of multi-dimensional nozzles are connected with a fluid supply pipeline for supplying fluid to the multi-dimensional nozzles.

[0013] The beneficial effect of the above technical solution is that the multi-dimensional nozzles densely arranged on the inner bottom wall of the bin can make the ore slag in the inner bottom of the bin present in a flow state under the impact of the fluid.

[0014] The mixing well in the above technical solution includes a well body in the shape of a tank and a partition plate horizontally arranged in the well body. The partition plate divides the well body into an upper tank chamber and a lower chamber. An overflow inlet is arranged at the side wall of the upper end of the mixing well and communicates with the upper tank chamber. The horizontal height of the overflow inlet is consistent with that of the overflow outlet. The feed pipe is tangentially connected and communicated with the side wall of the upper tank chamber. The feed pipe communicates with the lower chamber and extends to the middle part of the lower chamber. The edge of the partition plate has a first ore falling hole arranged in a ring shape. The middle part of the partition plate has a second ore falling hole. The discharge port communicates with the lower chamber. The first ore falling hole is used for coarse ore to fall into the lower chamber. The second ore falling hole is used for fine ore to fall into the lower chamber to combine with the flocculating agent to form flocculation groups at the middle part of the lower chamber. The part of the clear water in the upper bin section overflows into the upper tank chamber through the overflow inlet to dilute the ore slurry.

[0015] The beneficial effect of the above technical solution is that the ore slurry enters the upper tank chamber in the form of a vortex. At this time, the coarse ore falls along the outer periphery of the upper tank chamber due to its large density under its own gravity, and the fine ore is distributed in the middle part of the upper tank chamber to form a vortex flow. The coarse ore directly falls into the edge of the lower chamber through the first ore falling hole, and the fine ore directly falls into the middle part of the lower chamber through the second ore falling hole and mixes with the flocculating agent. The lower chamber is arranged in a semi-closed state, which can effectively prolong the mixing time of the flocculating agent and the fine ore, so that the flocculating agent and the fine ore are more fully mixed, further enhancing the flocculation group effect. At this time, the fine ore is flocculated into flocculation groups, and the density of the flocculation groups is increased. At this time, the coarse ore and the flocculation groups are discharged together through the discharge port to the bin for sedimentation. Since the density of the flocculation groups is increased, the flocculation groups will settle together with the coarse ore. This is conducive to accelerating the settlement of the fine ore. The overflow inlet is arranged at the upper part of the mixing well, so that the clear water can enter the upper tank chamber to dilute the ore slurry, which is more conducive to the combination of the ore slurry and the flocculating agent.

[0016] In the above technical solution, the middle part of the bottom wall of the well body protrudes upward into a cone shape to guide the fluid, and the discharge port is located on the side wall at the lower end of the well body.

[0017] The beneficial effect of the above technical solution is that it can avoid the deposition of ore in the middle of the lower chamber, which is conducive to the rapid discharge of ore from the lower chamber.

[0018] The above technical solution provides multiple discharge ports, which are distributed circumferentially at intervals on the side wall at the lower end of the well body.

[0019] The beneficial effect of the above technical solution is that it allows the ore in the lower chamber to be discharged more quickly.

[0020] The above technical solution provides multiple overflow inlets, and the multiple overflow inlets are distributed circumferentially at intervals on the sidewall of the well body.

[0021] The beneficial effect of the above technical solution is that the slurry in all parts of the upper tank can be diluted by the overflowing clean water in a timely manner.

[0022] The agitator in the above technical solution further includes a rotating drive, a shaft, and a agitator. The shaft is vertically arranged in the bin body, and its upper end passes through the middle of the mixing well and can rotate relative to the bin body and the mixing well. The rotating drive is arranged at the upper end of the bin body and is connected to the upper end of the shaft. The agitator is located in the middle of the lower bin section and is installed at the lower end of the shaft. The agitator is a hollow plate formed by multiple rods connected in a crisscross pattern.

[0023] The beneficial effects of the above technical solution are: its structure is simple and it allows the flocculated agglomerates concentrated in the lower compartment to be broken up better. By placing the agitator in the middle of the lower compartment, the resistance to rotation of the agitator is avoided from being too dense in the ore, and the water discharged after the flocculated agglomerates are broken up can flow upward in a timely manner. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the T-shaped chamber thickener described in Embodiment 1 of this utility model;

[0025] Figure 2 This is a cross-sectional view of the mixing well described in Embodiment 1 of this utility model;

[0026] Figure 3 This is a top view of the scraper mechanism described in the embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the screw feeder described in Embodiment 1 of this utility model being installed at the lower end of the hopper;

[0028] Figure 5 This is a schematic diagram of the two screw feeders installed at the lower end of the bin body in Embodiment 1 of this utility model;

[0029] Figure 6 This is a schematic diagram showing the mixing well connected to the silo body via multiple connecting rods in Embodiment 1 of this utility model;

[0030] Figure 7 This is a graph showing the settling of the ore when no agitator is provided in Embodiment 1 of this utility model;

[0031] Figure 8 This is a graph showing the settling of ore when the crushing component is installed in Embodiment 1 of this utility model;

[0032] Figure 9 This is a schematic diagram of the jetting component being installed at the lower end of the chamber body in Embodiment 2 of this utility model;

[0033] Figure 10 This is a cross-sectional view of the multi-dimensional nozzle described in Embodiment 2 of this utility model.

[0034] In the diagram: 1. Silo body; 11. Upper silo section; 111. Overflow outlet; 112. Overflow weir; 12. Middle silo section; 13. Lower silo section; 131. Slag discharge outlet; 14. Overflow pipe; 2. Mixing well; 21. Feed pipe; 22. Chemical feed pipe; 23. Well body; 231. Upper tank chamber; 232. Lower chamber; 233. Guide fluid; 234. Overflow inlet; 235. Discharge outlet; 24. Baffle plate; 241. First discharge hole; 242. Second discharge hole; 3. Crushing component; 31. Rotating component 32. Drive component; 33. Shaft component; 331. Agitator; 4. Rake body; 41. Telescopic drive component; 42. Rake plate; 421. Outer ring; 422. Reinforcing rod; 5. Jetting component; 51. Multi-dimensional nozzle; 511. Valve housing; 5111. Valve seat; 5112. Perforation hole; 512. One-way valve core; 513. Spring; 52. Supply pipeline; 521. Supply main pipe; 522. Supply ring pipe; 6. Connecting rod; 7. Walkway platform; 8. Screw feeder. Detailed Implementation

[0035] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0036] Example 1

[0037] like Figure 1 As shown, this embodiment provides a T-shaped silo thickener, including a silo body 1, a mixing well 2, and a grinding component 3. The silo body 1 is vertically arranged and trough-shaped, with an open upper end. The silo body 1 includes an upper silo section 11, a middle silo section 12, and a lower silo section 13 connected sequentially in the vertical direction. The upper silo section 11 is thicker than the lower silo section 13. The middle silo section 12 is funnel-shaped. The mixing well 2 is suspended in the middle of the upper silo section 11. The lower end of the mixing well 2 has a discharge port 235. The side wall of the upper silo section 11 has an overflow port 11. 1. The mixing well 2 has an inlet pipe 21 and a chemical inlet pipe 22 extending out of the silo body 1. The inlet pipe 21 is used to introduce slurry into the mixing well 2, and the chemical inlet pipe 22 is used to introduce flocculant into the mixing well 2. The lower end of the lower silo section 13 has a slag discharge port 131. The mixing well 2 is used to classify the mineral materials in the slurry according to their particle size, and the flocculant flocculates the fine mineral materials into flocs, which are then discharged into the silo body 1 along with the coarse mineral materials for settling. The agitator 3 is installed on the silo body 1 and is used to agitate the slurry. The flocs in the lower section 13 are broken up to release water. The clear water in the upper part of the silo 1 overflows through the overflow port 111. The ore deposited at the lower end of the lower section 13 is discharged through the slag discharge port 131. A mixing well is installed at the upper end of the silo, and the slurry is fed into the mixing well for classification, so that the flocculant is supplied only to the fine ore, thus reducing the amount of flocculant used. The fine ore flocculates into flocs, which can then be discharged into the silo along with the coarse ore for settling. During sedimentation, the flocs contain a significant amount of bound water. As the flocs settle to the middle of the silo, they are further broken up by the agitator to release the water. The water rises, while the fine minerals, encased in the coarse minerals, continue to settle. This allows the minerals in the slurry to settle rapidly. By designing the silo in a T-shape (i.e., thickening the upper part of the silo), the settling area within the silo is increased, thereby increasing the amount of slurry that can be flocculated and dewatered. The middle section is designed in a funnel shape to effectively prevent slurry sedimentation.

[0038] In this embodiment, the cross-section of the chamber is circular. Specifically, the diameter of the upper end of the middle chamber section is larger than the diameter of its lower end. The diameter of the upper chamber section is the same as the diameter of the upper end of the middle chamber section and is coaxially connected. The diameter of the upper end of the lower chamber section is the same as the diameter of the lower end of the middle chamber section and is coaxially connected (this makes the upper end of the entire chamber thicker and the lower end thinner, thus forming a "T" shape in the longitudinal section). In this embodiment, the length of the lower chamber section can be 2-4 times the length of the upper chamber section, and the diameter of the upper chamber section can be 1.3-2 times the diameter of the lower chamber section (taking a diameter of 10m and an upper chamber section of 15m as an example under the condition of equal height, its processing capacity is 2.25 times that of the existing thickener with a diameter of 10m).

[0039] like Figure 6 As shown, in this embodiment, the edge of the mixing well is connected to the inner wall of the upper silo section by multiple circumferentially spaced connecting rods 6, so that the mixing well is firmly suspended in the upper silo section. The upper end of the silo can also be provided with a walkway platform 7 with guardrails for people to stand or walk (which is the prior art and will not be described in detail here).

[0040] like Figure 1 and Figure 3 As shown, the bottom wall of the silo 1 in the above technical solution is flat. A scraper mechanism 4 is provided on the bottom wall of the silo 1. A screw feeder 8 connected to the slag discharge port 131 is provided at the lower end of the silo 1. In this way, the slag at the bottom of the silo is moved into a flow state by the scraper mechanism and sent out through the slag discharge port by the screw feeder. This can avoid the accumulation of ore on the bottom wall of the silo, which would lead to poor discharge.

[0041] like Figure 3 As shown, the scraper mechanism 4 in the above technical solution includes a telescopic drive component 41 and a hollow scraper plate 42. The scraper plate 42 is horizontally slidably installed on the inner bottom wall of the bin 1. The telescopic drive component 41 is installed at the lower end of the bin 1, and its telescopic end extends into the bin 1 in a sealed manner and is connected to the scraper plate 42 in a transmission connection. The telescopic drive component 41 is used to drive the scraper plate 42 to slide on the inner bottom wall of the bin 1 to agitate the ore to a fluid state and squeeze it to the slag discharge port 131. In this way, the scraper plate moves back and forth on the inner bottom wall of the bin under the action of the telescopic drive component so that the ore deposited at the bottom of the bin is in a fluid state, so as to be released from the slag discharge port.

[0042] like Figure 3As shown, in this embodiment, the scraper plate 42 can be approximately an elliptical hollow structure, which includes an approximately elliptical outer ring 421 and multiple reinforcing rods 422 connected inside the outer ring. If the diameter of the lower compartment is large, two telescopic drive components can be provided. The radius of curvature of the outer ring 421 is slightly smaller than the radius of curvature of the inner cavity of the lower compartment. The two telescopic drive components are arranged side by side and are both connected to the outer edge of the outer ring (the connection points between the two telescopic drive components and the outer ring are symmetrically distributed along the minor axis of the outer ring), and their length direction is perpendicular to the major axis of the outer ring. The telescopic drive component can be a hydraulic cylinder or an electric push rod.

[0043] like Figure 4 As shown, in this embodiment, the slag discharge port on the bottom wall of the silo can be a straight strip-shaped (rectangular) slag discharge port. The number of slag discharge ports depends on the size of the bottom wall of the lower silo section. The number of screw feeders corresponds one-to-one with the number of slag discharge ports. Typically, two slag discharge ports and two screw feeders can be provided, and the two slag discharge ports are arranged parallel to each other at the lower end of the silo. The casing of the screw feeder has a feed port with the same size as the slag discharge port. Each screw feeder's feed port is connected and communicates with the corresponding slag discharge port (at this time, the two screw feeders are also arranged side-by-side at the lower end of the silo). This improves the discharge effect of the ore at the bottom of the silo. In this embodiment, the screw feeder can be a coupled double-screw feeder (which has two full-blade screw shafts with opposite rotation directions and opposite blade spiral directions, thus overcoming the adhesion between the ore during slag discharge, resulting in excellent slag discharge effect).

[0044] In this embodiment, both the feed pipe and the drug inlet pipe have an inlet end that is higher than the outlet end. Preferably, the outlet end of the drug inlet pipe is oriented downwards.

[0045] like Figure 1 As shown in the figure, in this embodiment, a vertically arranged overflow pipe 14 can be connected to the overflow port to discharge clean water.

[0046] like Figure 1 and Figure 2As shown, the mixing well 2 in the above technical solution includes a tank-shaped well body 23 and a partition 24 horizontally disposed within the well body 23. The partition 24 divides the well body 23 into an upper tank chamber 231 and a lower chamber 232. An overflow inlet 234 communicating with the upper tank chamber is provided on the side wall at the upper end of the mixing well 2, and the overflow inlet 234 is at the same horizontal height as the overflow outlet 111. The feed pipe 21 is tangentially connected to and communicates with the side wall of the upper tank chamber 231, and the drug inlet pipe 22 communicates with the lower chamber 232. Extending to the inner center of the lower chamber 232, the partition 24 has a first discharge hole 241 arranged circumferentially at its edge, and a second discharge hole 242 at its center. The discharge port 235 communicates with the lower chamber 232. The first discharge hole 241 is used to allow coarse ore to fall into the lower chamber 232, and the second discharge hole 242 is used to allow fine ore to fall into the lower chamber 232, so that it can combine with flocculant in the center of the lower chamber 232 to form flocs. The clear water in the upper section 11 is then... The overflow inlet 234 overflows into the upper tank chamber 231 to dilute the slurry, causing the slurry to enter the upper tank chamber in a swirling manner. At this point, the coarse ore, due to its high density, falls naturally by gravity at the periphery of the upper tank chamber, while the fine ore, due to its low density, forms a vortex flow in the middle of the upper tank chamber. The coarse ore falls directly through the first discharge hole to the edge of the lower chamber, while the fine ore falls directly through the second discharge hole to the middle of the lower chamber, where it mixes with the flocculant. The mixing chamber is designed as a semi-enclosed space, which can effectively extend the mixing time. The longer the mixing time between the flocculant and the fine minerals, the more thoroughly they are mixed, further enhancing the flocculation and agglomeration effect. At this time, the density of the fine minerals increases after flocculating into flocs. The coarse minerals and flocs are then discharged together through the outlet into the silo for settling. Due to the increased density of the flocs, they will settle along with the coarse minerals, which helps to accelerate the settling of the fine minerals. An overflow inlet is set above the mixing well, allowing clean water to enter the upper tank chamber to dilute the slurry, thereby reducing the slurry concentration and making it more conducive to the combination of the slurry and the flocculant.

[0047] In this embodiment, the well body is a circular trough. The well body is coaxially arranged in the upper compartment. The well body is connected to the inner wall of the upper compartment through multiple circumferentially spaced connecting rods 6. The connection between the feed pipe and the well body is tangentially distributed, which allows the slurry discharged into the upper compartment to flow in a swirling manner, achieving a coarse and fine mineral classification effect similar to that of a hydrocyclone separator.

[0048] like Figure 2As shown in the above technical solution, the bottom wall of the well body 23 has a cone-shaped guide 233 that protrudes upward from the middle. The discharge port 235 is located on the side wall at the lower end of the well body 23. This can prevent the ore from depositing in the middle of the lower chamber, which is conducive to the rapid discharge of the ore in the lower chamber. Multiple discharge ports 235 are provided, and the multiple discharge ports 235 are distributed circumferentially at intervals on the side wall at the lower end of the well body 23, so that the ore in the lower chamber can be discharged more quickly.

[0049] like Figure 2 As shown, the above technical solution has multiple overflow inlets 234, and the multiple overflow inlets 234 are evenly distributed circumferentially on the side wall of the well body 23, so that the slurry in each part of the upper tank can be diluted by the overflowing clean water in a timely manner.

[0050] like Figure 1 As shown, the agitator 3 in the above technical solution also includes a rotating drive 31, a shaft 32, and a agitator 33. The shaft 32 is vertically arranged inside the bin 1, and its upper end passes through the middle of the mixing well 2, and can rotate relative to the bin 1 and the mixing well 2. The rotating drive 31 is arranged at the upper end of the bin 1 and is connected to the upper end of the shaft 32. The agitator 33 is located in the middle of the lower bin section 13 and is installed at the lower end of the shaft 32. The agitator 33 is a hollow plate formed by multiple rods 331 connected in a crisscross pattern. Its structure is simple and allows the flocculated agglomerates concentrated in the lower bin section to be better broken up. By placing the agitator in the middle of the lower bin section, the resistance to rotation of the agitator is avoided from being too dense and the ore is not too high. At the same time, the water discharged after the flocculated agglomerates are broken up can flow upward in time.

[0051] The shaft can be vertically arranged in the middle of the silo body and penetrates the middle of the guide fluid and the partition (the position where the shaft penetrates the guide fluid and the partition has an annular gap, so that the shaft does not affect the normal operation of the mixing well when it rotates). In this embodiment, the rotation drive can be an electric motor or a hydraulic motor (preferably a geared motor), which is arranged at the upper end of the silo body (both the rotation drive and the shaft can be installed on the silo body by a support frame arranged at the upper end of the silo body, and the lower end of the shaft can be suspended in the silo body).

[0052] The operating principle of the T-shaped thickener provided in this embodiment is that the mixing well classifies the slurry. Under the action of flocculant, the fine mineral material flocculates into flocs, which allows it to settle together with the coarse mineral material (avoiding obvious stratification between coarse and fine mineral material in the silo; if flocculant is not used, the liquid at the top of the silo will not be clear water, but a turbid liquid mixed with fine mineral material, which will make it difficult for the fine mineral material to settle). In this application, the fine and coarse mineral materials settle in the silo (during the settling process, coarse particles and flocs move downwards, while water moves upwards), which forms a clear water layer in the upper inner part of the upper silo section. At this time, the water in the clear water layer can partially overflow through the overflow outlet, or partially overflow into the upper tank chamber through the overflow inlet to dilute the slurry. Since the flocs contain water particles, they are broken up and released in the middle of the lower silo section (corresponding to the middle in the length direction), allowing the water to continue to move upwards, while the fine mineral material continues to settle downwards under the influence of the coarse mineral material.

[0053] The advantages of the T-shaped silo thickener provided in this embodiment are as follows: the mixing well 2 classifies the incoming material from the feed pipe 21 into coarse and fine ore, and only the flocculation of fine ore consumes flocculant, thus reducing the amount of flocculant used. The agitator 33 breaks down the flocs, causing the bound water in the flocs to precipitate out, thus greatly improving the efficiency of ore thickening. In addition, since the scraper of the traditional deep cone thickener is eliminated, its operating energy consumption is relatively low.

[0054] like Figure 1 As shown, the overflow outlet 111 in this embodiment can be improved by setting an annular groove-shaped overflow weir 112 inside the upper end of the silo body. The upper end of the overflow weir 112 is serrated on the side near the middle of the silo body (each groove of the serration at the upper end of the overflow weir 112 can be regarded as an overflow outlet. At this time, it is only necessary to set a drain outlet at the overflow weir to connect with the overflow pipe. At this time, the horizontal height of the overflow outlet is equivalent to the height of the serrated groove at the upper end of the silo body). This is the prior art and will not be described in detail here.

[0055] like Figure 1 As shown, in this embodiment, the tank can be divided into a clear water zone (i.e., ...) from top to bottom in the height direction. Figure 1 (0-A section) and free settlement zone (i.e. Figure 1 (A and B sections), and the disturbed settlement zone (i.e.) Figure 1 (BC segment) and dense area (i.e. Figure 1The diagram shows the CD section, where O represents the height of the overflow outlet, D represents the height of the lower end of the silo, A represents the interface between the clear water zone and the free settling zone, B represents the interface between the free settling zone and the disturbed settling zone, and C represents the interface between the disturbed settling zone and the compacted zone. The area above the discharge outlet (or above the partition) is the clear water zone (primarily clear water). The area below the discharge outlet to the upper end of the lower silo section is the free settling zone (primarily for coarse ore and flocs to settle due to gravity). The middle part of the lower silo section is the disturbed settling zone, where the agitator is located. In this zone, the density of the ore gradually increases, flocs are broken up, water rises, and fine ore continues to settle downwards under the influence of coarse ore, gradually becoming compacted. During compaction, interstitial water is squeezed upwards until a compacted zone is formed. The lower end of the lower silo section is the compacted zone (where the ore settles and becomes the most compacted). Specifically… Figure 1 The positions of interfaces A, B, and C are not absolute; they may also fluctuate dynamically within a small range.

[0056] The sedimentation effect before and after setting the agitator in this embodiment can be seen from the comparison. Figure 7 (No agitator installed) and Figure 8 (As shown in the image, which is equipped with a grinding component) Figure 7 and Figure 8 The vertical axis h represents the height of the solid-liquid separation interface, the horizontal axis t represents the settling time, and Δh represents the height difference between A and D. Figure 7 In this context, t1 represents the settling time of the ore, t2 represents the settling time of the ore in section BC, and t3 represents the compaction and settling time of the ore in section CD. The difference between t1, t2, and t3 represents the settling time of the ore in section AB. Similarly, ... Figure 8 In the graph, T1 represents the settling time of the ore, T2 represents the settling time of the ore in section BC, and T3 represents the compaction and settling time of the ore in section CD. The difference between T1, T2, and T3 represents the settling time of the ore in section AB. Comparing the two graphs, it can be seen that after adding the agitator, the T2 time is significantly shorter than t2 without the agitator, and T3 is also less than t3. This shows that adding the agitator can significantly improve the compaction efficiency of the ore. Furthermore, it can also be seen that… Figure 8 The height difference between sections A and B should be greater than Figure 7 The height difference between A and B, and Figure 8 The height difference between the middle BC section and the middle BC section should be less than Figure 7 The height difference between sections B and C shows that the addition of the agitator allows the flocs to be quickly broken up and release moisture in the interference settling zone. This increases the density of the granular material due to moisture release, allowing it to settle more quickly. Figure 7Without a crushing component, the flocs sink relatively slowly. When the flocs sink to a certain height with the coarse ore, they are saturated. As they continue to sink, the water in the flocs is slowly squeezed out due to the increase in pressure difference during the sinking process. Therefore, the length of AB is shortened and the length of BC is increased.

[0057] In this embodiment, an approximately elliptical and hollow scraper plate is used, and a telescopic drive is used to drive its reciprocating movement. This reduces the area of ​​the scraper plate that bears the high-density ore from above, thus making it less likely to cause scraper-related accidents on the bottom wall of the bin. Moreover, the reciprocating movement of the scraper plate makes the ore on the bottom wall of the bin flow, which is convenient for discharge. Furthermore, when the two arc frames of the scraper plate reach the root of the bin, the reciprocating movement can loosen and fluidize the ore in the entire area of ​​the bin bottom, and during the reciprocating movement, the ore is scraped towards the slag discharge port to be fed into the screw feeder.

[0058] The dewatering effect of a thickener is characterized by concentration. The higher the concentration, the better the dewatering effect. In this embodiment, a mechanical motion is used to fluidize the high-density ore, and a screw feeder is used to discharge the ore, ensuring that the discharged ore has a high concentration and achieving a better dewatering effect.

[0059] Example 2

[0060] Same as Example 1, except that, as Figure 9 As shown, in the above technical solution, the bottom wall of the silo 1 is a cone shape with the tip pointing downwards. The slag discharge port 131 is located at the lowest horizontal height of the bottom wall of the silo 1. A jetting element 5 is provided on the bottom wall of the silo 1. The jetting element 5 is used to jet fluid into the inner bottom of the silo 1, so that the ore deposited at the inner bottom of the silo 1 flows along the inner bottom wall of the silo 1 and is discharged through the slag discharge port 131. In this way, when the ore at the bottom of the silo 1 is deposited and the slag discharge is not smooth, the jetting element can inject fluid into the inner bottom of the silo 1, so that the ore in the silo 1 can flow down the slope and be discharged through the slag discharge port.

[0061] like Figure 9 As shown, the jetting component 5 in the above technical solution includes multiple multi-dimensional nozzles 51 embedded in the inner wall of the chamber 1, and each multi-dimensional nozzle 51 has multiple nozzles (the multiple nozzles are oriented in a divergent manner). The multiple multi-dimensional nozzles 51 are connected to a flow supply pipe 52, which is used to supply fluid to the multi-dimensional nozzles 51. By densely arranging multi-dimensional nozzles on the inner bottom wall of the chamber, the slag at the bottom of the chamber can be in a flow state under the impact of the fluid.

[0062] like Figure 9 and Figure 10As shown, in this embodiment, multiple multi-dimensional nozzles are distributed in multiple rings on the bottom wall of the chamber (from the inside out), and each ring has multiple multi-dimensional nozzles spaced circumferentially. The supply pipeline 52 includes a main supply pipe 521 and multiple supply ring pipes 522. The supply ring pipes 522 are annular pipes (the annular diameters of the multiple supply ring pipes 522 are different). The multiple supply ring pipes 522 are coaxially distributed at the lower end of the chamber and extend along the slope of the bottom wall of the chamber in the height direction at the lower end of the chamber. The flow supply ring pipes 522 are arranged sequentially, each with an inlet port. Multiple multi-dimensional nozzles in the same ring correspond to one flow supply ring pipe 522 and are all installed on the corresponding flow supply ring pipe 522 (the inlet end of the multi-dimensional nozzle is connected to the corresponding flow supply ring pipe). The inlet ports of the multiple flow supply ring pipes 522 are all connected to and communicate with the main flow supply pipe. The main flow supply pipe supplies fluid to the multiple flow supply ring pipes, so that fluid can be supplied to each multi-dimensional nozzle simultaneously. In this embodiment, the fluid can be water or air.

[0063] In this embodiment, the slag discharge port can be arranged in a tubular shape, and one or more slag discharge ports can be provided. When multiple slag discharge ports are provided, they are distributed circumferentially at intervals and are arranged perpendicularly to the corresponding part of the bottom wall of the silo. A valve is provided at the joint between the slag discharge port and the bottom wall of the silo, which is the prior art and will not be described in detail here.

[0064] like Figure 10 As shown, the structure of the multi-dimensional nozzle 51 in this embodiment is similar to the structure disclosed in document CN211563366U, "A Nozzle". Specifically, the multi-dimensional nozzle 51 includes a valve housing 511, a one-way valve core 512, and a spring 513. The valve housing is groove-shaped, with an annular valve seat 5111 protruding from its inner wall. The bottom wall and side wall of the groove of the valve housing both have multiple injection holes 5112 (so that the fluid ejected from the multi-dimensional nozzle can be diffused). The spring and the one-way valve core are both mounted on the valve. Inside the housing, the one-way valve core, under the action of the spring, tends to abut against the inner hole of the valve seat to seal the valve housing. Its operating principle is similar to the structure disclosed in document CN211563366U "A kind of nozzle" (the only difference is that in this embodiment, there are also axially distributed perforations at the bottom of the valve housing, so that the ore on the bottom wall of the chamber can be better in a fluidized state). The one-way valve core is set inside the multi-dimensional nozzle in this embodiment, which can prevent slag from entering the valve housing through the perforations and causing the multi-dimensional nozzle to jam.

[0065] In this embodiment, the dense ore at the bottom of the silo flows in a fluid state under the impact of the fluid. The fluid ejected from the perforations on the sidewall of the multi-dimensional nozzle can fluidize the tailings compacted on the bottom wall of the silo, producing a mudslide-like shape that slides down to the slag discharge port. (After successful discharge, the material inside the silo will become loose during the settling process. At this time, the multi-dimensional nozzle does not need to continuously spray fluid. It only sprays when the ore discharge on the bottom wall of the silo is not smooth, which can ensure high-concentration slag discharge.) The fluid ejected from the perforations at the end of the multi-dimensional nozzle can make the fluidized layer (the fluidized ore zone) at the bottom of the silo develop further upward to obtain a better discharge effect.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A T-shaped chamber thickener, characterized in that, The device includes a silo body (1), a mixing well (2), and a grinding component (3). The silo body (1) is vertically arranged and trough-shaped with an open upper end. The silo body (1) includes an upper section (11), a middle section (12), and a lower section (13) connected sequentially in the vertical direction. The upper section (11) is thicker than the lower section (13). The middle section (12) is funnel-shaped. The mixing well (2) is suspended in the middle of the upper section (11). The lower end of the mixing well (2) has a discharge port (235). The side wall of the upper section (11) has an overflow port (111). The mixing well (2) has a feed pipe (21) and a drug inlet pipe (22) extending out of the silo body (1). The feed pipe (21) The mixing well (2) is used to introduce slurry into the mixing well (2), the inlet pipe (22) is used to introduce flocculant into the mixing well (2), the lower end of the lower compartment (13) has a slag discharge port (131), the mixing well (2) is used to classify the ore in the slurry according to the particle size, and the flocculant flocculates the fine ore into flocs and discharges them together with the coarse ore into the compartment (1) for settling, the agitator (3) is installed on the compartment (1) and is used to agitate the flocs in the lower compartment (13) to release the water in the flocs, the clear water in the upper part of the compartment (1) overflows through the overflow port (111), and the ore deposited at the lower end of the lower compartment (13) is discharged through the slag discharge port (131).

2. The T-shaped chamber thickener according to claim 1, characterized in that, The bottom wall of the silo (1) is flat, and a scraper mechanism (4) is provided on the bottom wall of the silo (1). A screw feeder (8) that connects to the slag discharge port (131) is provided at the lower end of the silo (1).

3. The T-shaped chamber thickener according to claim 2, characterized in that, The scraper mechanism (4) includes a telescopic drive (41) and a hollow scraper plate (42). The scraper plate (42) is horizontally slidably installed on the inner bottom wall of the bin (1). The telescopic drive (41) is installed at the lower end of the bin (1), and its telescopic end extends into the bin (1) in a sealed manner and is connected to the scraper plate (42) in a transmission connection. The telescopic drive (41) is used to drive the scraper plate (42) to slide on the inner bottom wall of the bin (1) to agitate the ore to a fluid state and squeeze it to the slag discharge port (131).

4. The T-shaped chamber thickener according to claim 1, characterized in that, The bottom wall of the silo (1) is cone-shaped with the tip pointing downwards. The slag discharge port (131) is located at the lowest horizontal height of the bottom wall of the silo (1). A jetting element (5) is provided on the bottom wall of the silo (1). The jetting element (5) is used to jet fluid into the inner bottom of the silo (1) so that the mineral material deposited at the inner bottom of the silo (1) flows along the inner bottom wall of the silo (1) and is discharged through the slag discharge port (131).

5. The T-shaped chamber thickener according to claim 4, characterized in that, The jetting component (5) includes a plurality of multidimensional nozzles (51) embedded in the inner wall of the chamber (1), and the multidimensional nozzles (51) have a plurality of nozzles. The plurality of multidimensional nozzles (51) are connected to a flow supply pipe (52) for supplying fluid to the multidimensional nozzles (51).

6. The T-shaped chamber thickener according to claim 1, characterized in that, The mixing well (2) includes a tank-shaped well body (23) and a partition (24) horizontally disposed within the well body (23). The partition (24) divides the well body (23) into an upper tank chamber (231) and a lower chamber (232). An overflow inlet (234) communicating with the upper tank chamber is provided on the side wall at the upper end of the mixing well (2), and the overflow inlet (234) is at the same horizontal height as the overflow outlet (111). The feed pipe (21) is tangentially connected to and communicates with the side wall of the upper tank chamber (231). The drug inlet pipe (22) communicates with the lower chamber (232) and extends inward to the inner middle of the lower chamber (232). The partition (24) has a first discharge hole (241) arranged circumferentially at its edge, and a second discharge hole (242) in the middle of the partition (24). The discharge port (235) is connected to the lower chamber (232). The first discharge hole (241) is used to allow coarse ore to fall into the lower chamber (232), and the second discharge hole (242) is used to allow fine ore to fall into the lower chamber (232) to combine with flocculant in the middle of the lower chamber (232) to form flocs. The clear water in the upper section (11) overflows into the upper tank chamber (231) through the overflow port (234) to dilute the slurry.

7. The T-shaped chamber thickener according to claim 6, characterized in that, The bottom wall of the well body (23) has a cone-shaped guide fluid (233) that protrudes upward from the middle, and the discharge port (235) is located on the side wall at the lower end of the well body (23).

8. The T-shaped chamber thickener according to claim 7, characterized in that, Multiple discharge ports (235) are provided, and the multiple discharge ports (235) are distributed circumferentially at intervals on the side wall at the lower end of the well body (23).

9. The T-shaped chamber thickener according to claim 6, characterized in that, Multiple overflow inlets (234) are provided, and the multiple overflow inlets (234) are distributed circumferentially at intervals on the sidewall of the well body (23).

10. The T-shaped chamber thickener according to claim 1, characterized in that, The agitator (3) also includes a rotation drive (31), a shaft (32) and a agitator (33). The shaft (32) is vertically arranged inside the bin (1), and its upper end passes through the middle of the mixing well (2), and can rotate relative to the bin (1) and the mixing well (2). The rotation drive (31) is arranged at the upper end of the bin (1) and is connected to the upper end of the shaft (32). The agitator (33) is located in the middle of the lower bin section (13) and is installed at the lower end of the shaft (32). The agitator (33) is a hollow plate formed by multiple rods (331) connected in a crisscross pattern.

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