Thickener with T-shaped bin body

Abstract

The T-shaped bin thickener comprises a bin body, a mixing well and a smashing part, 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 suspended in the upper bin section, a discharging opening is formed in the lower end of the mixing well, and the smashing part 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 invention belongs to the technical field of mineral material concentration, and in particular relates to a T-shaped bin thickener. Background Art

[0002] In mining and dressing projects, mineral processing, filling of mine goafs, and dry drainage and stacking of tailings all involve the dehydration and concentration process of concentrate slurry and tailings slurry. At present, rake thickeners are generally used to dehydrate and concentrate concentrate slurry and tailings slurry. However, due to the high price of rake thickeners, poor operation and maintenance convenience, and frequent rake compression accidents, the industry has tried to design and apply a number of vertical sand silos of different structural types to replace thickeners. However, most of the existing vertical sand silos have the following problems: first, the processing capacity of the slurry is small, the sedimentation rate is low, the flocculant consumption is too large, resulting in high costs, the bottom flow concentration of the sand silo is low, and the bottom flow sand discharge is not smooth; and the traditional deep cone thickener has a complex power rake frame structure. When the material layer height in the thickener is too high, it is very easy to cause rake compression accidents, and there will be a problem of high power consumption during operation. Summary of the invention

[0003] In order to solve the above technical problems, the object of the present invention is to provide a T-shaped bin thickener which has a simple structure and a better thickening effect on mineral materials.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a T-shaped bin thickener, comprising a bin, a mixing well and a crushing piece, wherein the bin is vertically arranged and is in the shape of a trough, and its upper end is open, the bin comprises an upper bin section, a middle bin section and a lower bin section which are connected in sequence along the up and down directions, the upper bin section is thicker than the lower bin section, the middle bin section is trumpet-shaped, the mixing well is suspended in the inner middle part 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 feed pipe and a medicine feed pipe which pass through the outside of the bin body, and the feed pipe The pipe is used to introduce slurry into the mixing well, the drug inlet pipe is used to introduce flocculant into the mixing well, the lower end of the lower warehouse section has a slag discharge port, the mixing well is used to classify the mineral materials in the slurry according to the particle size, and the fine mineral materials are flocculated into floccules by the flocculant and then discharged into the warehouse body together with the coarse mineral materials for sedimentation, the crushing member is installed on the warehouse body, and is used to crush the floccules in the lower warehouse section to release the moisture in the floccules, the clear water in the upper part of the warehouse body overflows through the overflow port, and the mineral materials deposited at the lower end of the lower warehouse section are discharged through the slag discharge port.

[0005] The beneficial effect of the above technical solution is that: by setting a mixing well at the upper end of the silo body, the slurry is passed into the mixing well for classification, so that the flocculant is only supplied to the fine mineral material, which can reduce the amount of flocculant used, and the fine mineral material is flocculated into floccules. At this time, the floccules can be discharged into the silo body at the same time as the coarse mineral material for sedimentation. At this time, the floccules settle at the same time as the coarse mineral material, and the floccules contain more bound water. When the floccules settle to the middle of the silo body, the floccules can be crushed by the crushing piece to release the water therein. At this time, the water will rise, and the fine mineral material is wrapped in the coarse mineral material and continues to settle with the coarse mineral material, which also allows the mineral material in the slurry to settle quickly. The silo body is set to a T shape (that is, the upper end of the silo body is thickened), which increases the sedimentation area in the silo body and thereby increases the processing capacity of flocculation and dehydration of the slurry, and the middle silo section is set to a trumpet shape, which can effectively prevent the slurry from sedimentation.

[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 connected to the slag discharge port is arranged at the lower end of the bin body.

[0007] The beneficial effect of the above technical solution is that the slag at the bottom of the bin is moved by the scraper mechanism to a fluid state so as to be sent out from the slag discharge port via a screw feeder, thereby avoiding the deposition of mineral materials on the bottom wall of the bin and causing poor discharge.

[0008] The scraper mechanism described in the above technical solution includes a telescopic driving member and a hollow scraper plate. The scraper plate is horizontally slidably installed on the inner bottom wall of the silo body. The telescopic driving member is installed at the lower end of the silo body, and its telescopic end is sealed and extends into the silo body and is transmission-connected to the scraper plate. The telescopic driving member is used to drive the scraper plate to slide on the inner bottom wall of the silo body to disturb the mineral material into fluidization and squeeze it to the slag discharge port.

[0009] The beneficial effect of the above technical solution is that the scraper plate reciprocates on the inner bottom wall of the bin body under the action of the telescopic drive member so that the mineral material deposited at the bottom of the bin body is in a fluid state, so as to be discharged from the slag discharge port.

[0010] In the above technical solution, the bottom wall of the silo body is in the shape of a cone with the tip facing downward, the slag discharge port is arranged at the lowest horizontal height of the bottom wall of the silo body, and a jet component is arranged on the bottom wall of the silo body. The jet component is used to inject fluid toward the inner bottom of the silo body so that the mineral material deposited at the inner bottom of the silo body flows along the inner bottom wall of the silo body and is discharged through the slag discharge port.

[0011] The beneficial effect of the above technical solution is that when the mineral material at the bottom of the bin body is deposited and the slag discharge is not smooth, the fluid can be injected into the inner bottom of the bin body by the jet element, so that the mineral material in the bin body can flow down the slope and be discharged through the slag discharge port.

[0012] The jet component in the above technical solution includes a plurality of multi-dimensional nozzles embedded on the inner wall of the bin body, and the multi-dimensional nozzles have a plurality of nozzles. The plurality of multi-dimensional nozzles are connected to a fluid supply pipeline, and the fluid supply pipeline is used to supply fluid to the multi-dimensional nozzles.

[0013] The beneficial effect of the above technical solution is that by densely arranging multi-dimensional nozzles on the inner bottom wall of the bin body, the slag at the bottom of the bin body can be in a fluid state under the impact of the fluid.

[0014] The mixing well in the above technical scheme includes a well body in the shape of a trough and a partition horizontally arranged in the well body, the partition divides the well body into an upper trough chamber and a lower chamber, an overflow port communicating with the upper trough chamber is arranged at the side wall at the upper end of the mixing well, and the overflow port is at the same horizontal height as the overflow port, the feed pipe is tangentially connected and communicated with the side wall of the upper trough chamber, the feed pipe is communicated with the lower chamber and extends inward to the inner middle part of the lower chamber, the edge of the partition is provided with a first drop hole arranged at an annular interval, the middle part of the partition is provided with a second drop hole, the discharge port is communicated with the lower chamber, the first drop hole is used for coarse ore to fall into the lower chamber, the second drop hole is used for fine ore to fall into the lower chamber, so as to combine with the flocculant in the middle part of the lower chamber to flocculate into flocculants, and the clean water part in the upper warehouse section overflows into the upper trough chamber through the overflow port to dilute the slurry.

[0015] The beneficial effect of the above technical solution is that the slurry enters the upper chamber in the form of a cyclone, at which time the coarse ore material falls with its own gravity at the periphery of the upper chamber due to its high density, while the fine ore material is distributed in the middle of the upper chamber due to its low density to form a vortex flow, wherein the coarse ore material directly falls to the edge of the lower chamber through the first drop hole, while the fine ore material directly falls to the middle of the lower chamber through the second drop hole and is mixed with the flocculant (the lower chamber is set in a semi-closed state, which can effectively prolong the time between the flocculant and the fine ore material The mixing time is longer, so that the flocculant and the fine mineral material are more fully mixed, and the flocculation and agglomeration effect is further enhanced). At this time, the fine mineral material is flocculated into floccules and the density is increased. At this time, the coarse mineral material and the floccules are discharged from the discharge port into the silo for sedimentation. Since the density of the floccules increases, they will settle together with the coarse mineral material, which is conducive to accelerating the sedimentation of the fine mineral material. An overflow port is set on the mixing well, so that clean water can enter the upper trough chamber to dilute the slurry, which is more conducive to the combination of the slurry and the flocculant.

[0016] In the above technical solution, the middle part of the bottom wall of the well body protrudes upward to form a conical flow guide body, and the discharge port is arranged on the side wall of the lower end of the well body.

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

[0018] In the above technical solution, a plurality of discharge ports are provided, and the plurality of discharge ports are distributed at intervals along the circumferential direction at the side wall at the lower end of the well body.

[0019] The beneficial effect of the above technical solution is that the mineral material in the lower chamber can be discharged more quickly.

[0020] In the above technical solution, a plurality of overflow ports are provided, and the plurality of overflow ports are distributed circumferentially at intervals on the side wall of the well body.

[0021] The beneficial effect of the above technical solution is that the slurry at various locations in the upper tank chamber can be diluted in time by the overflowing clean water.

[0022] The crushing member in the above technical solution also includes a rotating driving member, a shaft member and a crushing paddle. The shaft member is vertically arranged in the warehouse body, and its upper end passes through the middle part of the mixing well and can rotate relative to the warehouse body and the mixing well. The rotating driving member is arranged at the upper end of the warehouse body and is transmission-connected to the upper end of the shaft member. The crushing paddle is located in the inner middle part of the lower warehouse section and is installed at the lower end of the shaft member. The crushing paddle is a hollow plate formed by multiple rods connected in a criss-cross manner.

[0023] The beneficial effects of the above technical solution are: its structure is simple, and the flocculants concentrated in the lower bin section can be better broken up, and the crushing paddle is arranged in the middle of the lower bin section, so as to avoid the mineral material being too dense and causing the resistance of the crushing paddle to rotate to increase, and at the same time, the water discharged after the flocculants are broken up can flow upward in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the T-shaped bin thickener described in Example 1 of the present invention;

[0025] Figure 2 is a cross-sectional view of the mixing well described in Example 1 of the present invention;

[0026] Figure 3 is a top view of the scraping and raking mechanism described in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the spiral feeder in Example 1 of the present invention being arranged at the lower end of the bin body;

[0028] Figure 5 This is a schematic diagram of two screw feeders arranged at the lower end of the bin body in Example 1 of the present invention;

[0029] Figure 6 This is a schematic diagram of the mixing well in Example 1 of the present invention being connected to the bin body via a plurality of connecting rods;

[0030] Figure 7 It is a curve diagram of the sedimentation of the mineral material when no crushing element is provided in Example 1 of the present invention;

[0031] Figure 8 It is a curve diagram of the sedimentation of the mineral material when the crushing element is provided in Example 1 of the present invention;

[0032] Fig. 9 This is a schematic diagram of the jet element in Embodiment 2 of the present invention being arranged at the lower end of the bin body;

[0033] Fig.10 It is a cross-sectional view of the multi-dimensional nozzle described in Example 2 of the present invention.

[0034] In the figure: 1. bin body; 11. upper bin section; 111. overflow port; 112. overflow weir; 12. middle bin section; 13. lower bin section; 131. slag discharge port; 14. overflow pipe; 2. mixing well; 21. feed pipe; 22. medicine feed pipe; 23. well body; 231. upper tank chamber; 232. lower chamber; 233. guide body; 234. overflow port; 235. discharge port; 24. partition; 241. first drop hole; 242. second drop hole; 3. crushing element; 31. rotating Driving member; 32, shaft member; 33, agitating paddle; 331, rod body; 4, scraping and raking mechanism; 41, telescopic driving member; 42, scraping and raking plate; 421, outer ring; 422, reinforcement rod; 5, jet member; 51, multi-dimensional nozzle; 511, valve housing; 5111, valve seat; 5112, perforation; 512, one-way valve core; 513, spring; 52, flow supply pipeline; 521, flow supply main pipe; 522, flow supply ring pipe; 6, connecting rod; 7, walkway platform; 8, screw feeder. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0036] Example 1

[0037] like Figure 1As shown, this embodiment provides a T-shaped bin thickener, including a bin 1, a mixing well 2 and a crushing member 3. The bin 1 is vertically arranged and is in the shape of a trough, and its upper end is open. The bin 1 includes an upper bin section 11, a middle bin section 12 and a lower bin section 13 connected in sequence along the up and down direction. The upper bin section 11 is thicker than the lower bin section 13, and the middle bin section 12 is trumpet-shaped. The mixing well 2 is suspended in the inner middle of the upper bin section 11, and the lower end of the mixing well 2 has a discharge port 235, and the side wall of the upper bin section 11 has an overflow port 11. 1, the mixing well 2 has a feed pipe 21 and a drug feed pipe 22 passing through the silo body 1, the feed pipe 21 is used to pass the slurry into the mixing well 2, the drug feed pipe 22 is used to pass the 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 ore in the slurry according to the particle size, and the flocculant flocculates the fine ore into floccules and then discharges them into the silo body 1 together with the coarse ore for sedimentation, the crushing piece 3 is installed on the silo body 1, and is used to separate the ore The flocculated mass in the lower bin section 13 is crushed to release the water in the flocculated mass, the clean water in the upper part of the bin body 1 overflows through the overflow port 111, and the ore deposited at the lower end of the lower bin section 13 is discharged through the slag discharge port 131. By setting a mixing well at the upper end of the bin body, the slurry is passed into the mixing well for classification, so that the flocculant is only supplied to the fine ore, which can reduce the amount of flocculant used, and the fine ore is flocculated into flocculated mass. At this time, the flocculated mass can be discharged into the bin body at the same time as the coarse ore for sedimentation. At this time, the flocculated mass is discharged with the coarse ore at the same time. Settling, and the flocculants contain more bound water. When the flocculants settle to the middle of the bin, the flocculants can be broken up by the crushing parts to release the water. At this time, the water will go up, and the fine mineral materials are wrapped in the coarse mineral materials and continue to settle with the coarse mineral materials, which also makes the mineral materials in the slurry settle quickly. The bin is set to a T shape (that is, the upper end of the bin is thickened), which increases the sedimentation area in the bin and thus increases the processing capacity of the slurry for flocculation and dehydration. The middle bin section is set to a trumpet shape, which can effectively prevent the slurry from settling.

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

[0039] like Figure 6 As shown, the edge of the mixing well in this embodiment is connected to the inner wall of the upper warehouse section by a plurality of connecting rods 6 distributed at intervals in annular direction, so that the mixing well is firmly suspended in the upper warehouse section, and a walkway platform 7 with a guardrail can be provided at the upper end of the warehouse body for people to stand or walk (which belongs to 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 body 1 in the above technical solution is flat, and a scraper mechanism 4 is provided on the inner bottom wall of the silo body 1. The lower end of the silo body 1 is provided with a screw feeder 8 connected to the slag discharge port 131, so that the slag at the bottom of the silo body is moved by the scraper mechanism to a fluid state so as to be sent out from the slag discharge port through the screw feeder, thereby avoiding the deposition of mineral materials on the bottom wall of the silo body and causing poor discharge.

[0041] like Figure 3 As shown, the scraper mechanism 4 in the above technical scheme includes a telescopic driving member 41 and a hollow scraper plate 42, and the scraper plate 42 is horizontally slidably installed on the inner bottom wall of the bin body 1, and the telescopic driving member 41 is installed at the lower end of the bin body 1, and its telescopic end is sealed and extends into the bin body 1, and is transmission-connected with the scraper plate 42, and the telescopic driving member 41 is used to drive the scraper plate 42 to slide on the inner bottom wall of the bin body 1 to disturb the mineral material to fluidize, and squeeze it to the slag discharge port 131, so that the scraper plate reciprocates on the inner bottom wall of the bin body under the action of the telescopic driving member so that the mineral material deposited at the bottom of the bin body is in a fluidized state, so as to be discharged from the slag discharge port.

[0042] like Figure 3 As shown, the scraper plate 42 in this embodiment can be approximately an elliptical hollow structure, which includes an approximately elliptical outer ring 421 and a plurality of reinforcement rods 422 connected to the outer ring. If the diameter of the lower warehouse section is larger, two telescopic drive members can be provided, the curvature radius of the outer ring 421 is slightly smaller than the curvature radius of the inner cavity of the lower warehouse section, and the two telescopic drive members are arranged side by side and are both transmission-connected to the outer edge of the outer ring (the connection points of the two telescopic drive members and the outer ring are symmetrically distributed along the short diameter of the outer ring), and the length direction thereof is perpendicular to the long diameter of the outer ring. The telescopic drive member can adopt a hydraulic cylinder or an electric push rod.

[0043] like Figure 4As shown, the slag discharge port on the bottom wall of the silo body in this embodiment can be a straight strip slag discharge port (rectangular), and the number of slag discharge ports is determined according to the size of the bottom wall of the lower silo section, and the number of screw feeders corresponds to the number of slag discharge ports. The slag discharge port and the screw feeder can usually be provided with two, and the two slag discharge ports are arranged in parallel at the lower end of the silo body, and the casing of the screw feeder has a feeding interface consistent with the size of the slag discharge port, and the feeding interface of each screw feeder is connected and communicated 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 body), so that the discharge effect of the ore at the bottom of the silo body is better. The screw feeder in this embodiment can adopt a coupled double screw feeder (which is provided with two full-blade screw shafts with opposite rotation directions and opposite blade spiral rotation directions, so that it can overcome the viscosity between the ore materials during slag discharge, so its slag discharge effect is good).

[0044] In this embodiment, the inlet end of the feed pipe and the medicine feed pipe is higher than the outlet end. Preferably, the outlet end of the medicine feed pipe is arranged downward.

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

[0046] like Figure 1 and Figure 2As shown, the mixing well 2 in the above technical solution includes a well body 23 in the shape of a trough and a partition 24 horizontally arranged in the well body 23, the partition 24 divides the well body 23 into an upper trough chamber 231 and a lower chamber 232, an overflow port 234 communicating with the upper trough chamber is arranged at the side wall at the upper end of the mixing well 2, and the overflow port 234 is at the same level as the overflow port 111, the feed pipe 21 is tangentially connected and communicated with the side wall of the upper trough chamber 231, the feed pipe 22 is communicated with the lower chamber 232, and The partition 24 extends inward to the inner middle of the lower chamber 232. The edge of the partition 24 has a first drop hole 241 arranged in an annular manner. The middle of the partition 24 has a second drop hole 242. The discharge port 235 is connected to the lower chamber 232. The first drop hole 241 is used for coarse ore to fall into the lower chamber 232. The second drop hole 242 is used for fine ore to fall into the lower chamber 232, so as to combine with the flocculant in the middle of the lower chamber 232 to flocculate into a flocculation mass. The clean water in the upper chamber 11 is discharged through the upper chamber 11. The overflow port 234 overflows into the upper chamber 231 to dilute the slurry, so that the slurry enters the upper chamber in the form of a vortex. At this time, the coarse ore material naturally falls by gravity at the periphery of the upper chamber due to its high density, while the fine ore material is distributed in the middle of the upper chamber due to its low density to form a vortex flow, wherein the coarse ore material directly falls to the edge of the lower chamber through the first drop hole, while the fine ore material directly falls to the middle of the lower chamber through the second drop hole, and is mixed with the flocculant in the lower chamber. The lower chamber of the mixing well is set to be semi-closed, which can effectively extend the time. The length of time the flocculant is mixed with the fine mineral material allows the flocculant and the fine mineral material to be more fully mixed, further enhancing the flocculation and agglomeration effect. At this time, the fine mineral material is flocculated into floccules and its density is increased. At this time, the coarse mineral material and the floccules are discharged from the discharge port into the silo for sedimentation. Due to the increased density of the floccules, they will settle together with the coarse mineral material, which is conducive to accelerating the sedimentation of the fine mineral material. An overflow port is set on the mixing well, so that clean water can enter the upper trough 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 body, which is coaxially arranged in the upper storage section. The well body is connected to the inner wall of the upper storage section through a plurality of circumferentially spaced connecting rods 6, and the connection between the feed pipe and the well body is tangentially distributed, so that the slurry discharged into the upper trough chamber can flow in a swirling flow, achieving an effect similar to that of coarse and fine mineral classification in a cyclone separator.

[0048] like Figure 2As shown, in the above technical solution, the middle part of the bottom wall of the well body 23 protrudes upward to form a conical guiding body 233, and the discharge port 235 is arranged at the side wall of the lower end of the well body 23, so as to avoid the deposition of mineral materials in the middle of the lower chamber, which is conducive to the rapid discharge of the mineral materials in the lower chamber. There are multiple discharge ports 235, and the multiple discharge ports 235 are distributed at intervals along the annular direction at the side wall of the lower end of the well body 23, so that the mineral materials in the lower chamber can be discharged more quickly.

[0049] like Figure 2 As shown, in the above technical solution, the overflow ports 234 are provided in plurality, and the plurality of overflow ports 234 are evenly distributed circumferentially at the side wall of the well body 23, so that the slurry at various locations in the upper trough chamber can be diluted in time by the overflowing clean water.

[0050] like Figure 1 As shown, the crushing member 3 in the above technical scheme also includes a rotating driving member 31, a shaft member 32 and a crushing paddle 33. The shaft member 32 is vertically arranged in the warehouse body 1, and its upper end passes through the middle part of the mixing well 2, and can rotate relative to the warehouse body 1 and the mixing well 2. The rotating driving member 31 is arranged at the upper end of the warehouse body 1, and is transmission-connected with the upper end of the shaft member 32. The crushing paddle 33 is located in the inner middle part of the lower warehouse section 13 and is installed at the lower end of the shaft member 32. The crushing paddle 33 is a hollow plate formed by a plurality of rods 331 connected in a criss-cross manner. It has a simple structure and can better break up the flocculation groups concentrated in the lower warehouse section. The crushing paddle is arranged in the middle part of the lower warehouse section to avoid the mineral material being too dense and causing the resistance to the rotation of the crushing paddle to increase, and at the same time, the water discharged after the flocculation groups are broken can flow upward in time.

[0051] The shaft member can be vertically arranged in the inner middle part of the silo body, and pass through the middle part of the guide body and the partition (there is an annular gap at the position where the shaft member passes through the guide body and the partition, so that the shaft member does not affect the normal operation of the mixing well when it rotates). In this embodiment, the rotating drive member can be an electric motor or a hydraulic motor (preferably a reduction motor), which is arranged at the upper end of the silo body (the rotating drive member and the shaft member can be installed on the silo body through a support frame arranged at the upper end of the silo body, and the lower end of the shaft member can be suspended in the silo body).

[0052] The operating principle of the T-shaped bin thickener provided in this embodiment is that the mixing well grades the slurry, and the fine mineral material is flocculated into flocculants under the action of the flocculant, so that it can settle together with the coarse mineral material (avoiding obvious stratification of the coarse mineral material and the fine mineral material in the bin. If the flocculant is not used, it will cause not clear water but turbid liquid mixed with fine mineral material to appear at the top of the bin, which will make it difficult for the fine mineral material to settle). In this application, the fine mineral material and the coarse mineral material settle in the bin (during the sedimentation, the coarse particles and the flocculants move downward, and the water moves upward), so that a clear water layer is formed in the upper part of the upper bin section. At this time, the water in the clear water layer can partially overflow through the overflow port, and can also partially overflow into the upper tank chamber through the overflow port to dilute the slurry. Since the flocculants are wrapped with water masses, they are crushed and released in the middle part of the lower bin section (the middle part corresponding to the length direction), so that the water can continue to move upward, and the fine mineral material continues to settle downward under the wrapping of the coarse mineral material.

[0053] The advantage of the T-shaped bin thickener provided in this embodiment is that the coarse and fine mineral materials are classified for the incoming materials from the feed pipe 21 through the mixing well 2, and only the flocculation of the fine mineral materials consumes the flocculant, thereby reducing the amount of flocculant used, and the flocculants are destroyed by the crushing paddle 33, so that the bound water in the flocculants is precipitated, thereby greatly improving the efficiency of mineral thickening. In addition, since the scraper rake of the traditional deep cone thickener is eliminated, its operating energy consumption is relatively low.

[0054] like Figure 1 As shown, the arrangement of the overflow outlet 111 in the present embodiment can be improved to provide an annular groove-shaped overflow weir 112 inside the upper end of the bin body, and the upper end of the overflow weir 112 is serrated in the annular direction on one side close to the middle of the bin body (each tooth groove of the sawtooth at the upper end of the overflow weir 112 can be regarded as an overflow outlet. At this time, it is only necessary to provide a drain outlet at the overflow weir to connect with the overflow pipe. At this time, the horizontal height of the overflow outlet can be equivalent to the height of the sawtooth groove at the upper end of the bin body). It belongs to the prior art and will not be described in detail here.

[0055] like Figure 1 As shown, the warehouse body in this embodiment can be divided into clear water areas (i.e. Figure 1 0-A section), free settling zone (i.e. Figure 1 AB segment in the middle), interference settlement area (i.e. Figure 1 BC segment in the middle) and the dense area (i.e. Figure 1CD section in the figure), where O represents the height of the overflow port of the silo, 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 dense zone. The area above the discharge port (or above the partition) is the clear water zone (mainly clear water in this area), the area from the discharge port to the upper end of the lower silo is the free settling zone (mainly for coarse ore and flocculants to settle by gravity), and the inner middle part of the lower silo is the disturbed settling zone, and the agitator is located in the disturbed settling zone (the density of the ore in this area gradually increases, and the flocculants are broken in this area, the water goes up, and the fine ore continues to settle downward under the action of the coarse ore and is gradually compacted. During the compaction process, the interstitial water is squeezed and continues to rise until a dense zone is formed), and the inner lower end of the lower silo is the dense zone (the ore in this area is settled and is the most dense). Specifically, Figure 1 The positions of interface A, interface B and interface C are not absolute, and they may also fluctuate dynamically within a small range.

[0056] The comparison of the sedimentation effect before and after the stirring element is set in this embodiment shows that Figure 7 (no crushing element is provided) and Figure 8 (with a crushing element) as shown, Figure 7 and Figure 8 The vertical coordinate h is the height of the solid-liquid separation interface, the horizontal coordinate t is the sedimentation time, and Δh is the height difference between AD. Figure 7 Where t1 represents the settling time of the ore, t2 represents the settling time of the ore in the BC section, t3 represents the compaction settling time of the ore in the CD section, and the difference of t1-t2-t3 represents the settling time of the ore in the AB section. Similarly, Figure 8 T1 indicates the settling time of the ore, T2 indicates the settling time of the ore in the BC section, T3 indicates the compaction settling time of the ore in the CD section, and the difference of T1-T2-T3 indicates the settling time of the ore in the AB section. From the comparison of the two figures, after adding the crushing parts, the T2 time is obviously shorter than the t2 without the crushing parts, and T3 is also smaller than t3. It can be seen that adding the crushing parts can greatly improve the density efficiency of the ore. In addition, it can be seen that Figure 8 The height difference between the middle AB segment should be greater than Figure 7 The height difference between AB and Figure 8 The height difference of the middle BC section should be less than Figure 7 The height difference of the middle BC section shows that after adding the stirring element, the flocculants can be quickly broken up and release water in the interference sedimentation area, so that the density of the particles will increase due to the release of water, so that they can sink more quickly. Figure 7No stirring parts are set in the middle, and the sinking speed of the floccules is relatively slow. When the floccules sink to a certain height with the coarse ore, they are in a saturated state. When they continue to sink, the floccules have to squeeze out water slowly due to the increase of pressure difference in the sinking process, so the length of AB is shortened and the length of BC is increased.

[0057] In this embodiment, a scraper plate that is approximately elliptical and hollow is adopted, and a telescopic driving member is used to drive its reciprocating movement. This reduces the area of ​​the scraper plate that bears the upper high-density mineral material, thereby making it less likely for a rake crushing accident to occur on the bottom wall of the bin body. In addition, the reciprocating motion of the scraper plate can make the mineral material on the bottom wall of the bin body fluidized, which is convenient for discharging. Furthermore, when the reciprocating motion causes the two arc frames of the scraper plate to reach the roots of the periphery of the bin body respectively, the mineral material in the entire area of ​​the bin bottom can become loose and fluidized, and during the reciprocating motion, the mineral material can be scraped toward the slag discharge port to be fed into the screw feeder.

[0058] The dehydration effect of the thickener is characterized by concentration. The higher the concentration, the better the dehydration effect. This embodiment uses mechanical movement to fluidize the high-density mineral material, and further uses a screw feeder, a mechanical force method, to achieve material discharge, ensuring that the discharged mineral material has a higher concentration and achieving a better dehydration effect.

[0059] Example 2

[0060] Same as Example 1, except that Fig. 9 As shown, in the above technical solution, the bottom wall of the silo body 1 is in a cone shape with the tip facing downward, the slag discharge port 131 is arranged at the lowest horizontal height of the bottom wall of the silo body 1, and a jet component 5 is arranged on the bottom wall of the silo body 1, and the jet component 5 is used to inject fluid to the inner bottom of the silo body 1, so that the mineral material deposited at the inner bottom of the silo body 1 flows along the inner bottom wall of the silo body 1 to be discharged through the slag discharge port 131. In this way, when the mineral material at the bottom of the silo body is deposited and the slag discharge is not smooth, the fluid can be injected into the inner bottom of the silo body by the jet component, so that the mineral material in the silo body can flow down along the slope and be discharged through the slag discharge port.

[0061] like Fig. 9 As shown, the jet component 5 in the above technical solution includes a plurality of multi-dimensional nozzles 51 embedded on the inner wall of the bin body 1, and the multi-dimensional nozzles 51 have a plurality of nozzles (the directions of the plurality of nozzles are divergent), and the plurality of multi-dimensional nozzles 51 are connected to a flow supply pipeline 52, and the flow supply pipeline 52 is used to supply fluid to the multi-dimensional nozzles 51. By densely arranging the multi-dimensional nozzles on the inner bottom wall of the bin body, the slag at the bottom of the bin body can be in a fluid state under the impact of the fluid.

[0062] like Fig. 9 and Fig.10As shown, in this embodiment, a plurality of the multi-dimensional nozzles are distributed in multiple circles on the bottom wall of the bin body (distributed in multiple circles from the inside to the outside), and each circle has a plurality of multi-dimensional nozzles distributed in an annular direction, and the flow supply pipeline 52 includes a flow supply main pipe 521 and a plurality of flow supply annular pipes 522, the flow supply annular pipes 522 are circular ring pipes (the annular diameters of the plurality of flow supply annular pipes 522 are different), and the plurality of flow supply annular pipes 522 are coaxially distributed at the lower end of the bin body, and at the lower end of the bin body, along the slope of the bottom wall of the bin body in the height direction. Distributed in sequence, the flow supply ring pipe 522 is provided with an inlet interface, and the multiple multi-dimensional nozzles in the same circle correspond to one flow supply ring pipe 522, and are all arranged on the corresponding flow supply ring pipe 522 (the inlet end of the multi-dimensional nozzle is connected with the corresponding flow supply ring pipe), and the inlet interfaces of the multiple flow supply ring pipes 522 are all connected and communicated with the flow supply main pipe, and the flow supply main pipe supplies fluid to the multiple flow supply ring pipes, so that fluid can be supplied to each multi-dimensional nozzle at the same time. The fluid in this embodiment can be water flow or air flow.

[0063] The slag discharge port described in this embodiment can be set in a tubular shape, and one or more slag discharge ports can be set. When multiple slag discharge ports are set, they are distributed at intervals in the annular direction and are vertically set at the corresponding position of the bottom wall of the silo body. A valve is provided at the joint between the slag discharge port and the bottom wall of the silo body, which belongs to the existing technology and will not be described here.

[0064] like Fig.10 As shown, the structure of the multi-dimensional nozzle 51 in this embodiment is similar to the structure disclosed in the document No. 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 in the shape of a groove, and an annular valve seat 5111 is convexly provided on the inner wall thereof. The bottom wall and side wall of the groove of the valve housing are provided with a plurality of perforations 5112 (so that the fluid ejected by the multi-dimensional nozzle can be divergent), and the spring and the one-way valve core are both installed in the valve housing. Inside the shell, the one-way valve core tends to press against the inner hole of the valve seat under the action of the spring to seal the valve shell. Its operating principle is similar to the structure disclosed in document No. CN211563366U "A Nozzle" (the only difference is that in this embodiment, the bottom of the groove of the valve shell is also provided with axially distributed perforations, so that the mineral material on the bottom wall of the bin body can be better in a fluidized state). A one-way valve core is arranged inside the multi-dimensional nozzle in this embodiment, which can prevent slag from entering the valve shell through the perforations and causing the multi-dimensional nozzle to get stuck.

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

[0066] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A T-shaped bin thickener, characterized in that: The invention comprises a bin body (1), a mixing well (2) and a crushing element (3). The bin body (1) is arranged vertically and is in the shape of a trough, and its upper end is open. The bin body (1) comprises an upper bin section (11), a middle bin section (12) and a lower bin section (13) which are connected in sequence in the up-down direction. The upper bin section (11) is thicker than the lower bin section (13), and the middle bin section (12) is trumpet-shaped. The mixing well (2) is suspended in the middle of the upper bin section (11). The lower end of the mixing well (2) has a discharge port (235), and the side wall of the upper bin section (11) has an overflow port (111). The mixing well (2) has a feed pipe (21) and a medicine feed pipe (22) which pass through the bin body (1). The feed pipe (21) The mixing well (2) is used to introduce ore pulp into the mixing well (2); the drug inlet pipe (22) is used to introduce flocculant into the mixing well (2); the lower end of the lower bin section (13) has a slag discharge port (131); the mixing well (2) is used to classify the ore materials in the ore pulp according to the particle size, and the fine ore materials are flocculated into floccules by the flocculant and then discharged into the bin body (1) together with the coarse ore materials for sedimentation; the crushing element (3) is installed on the bin body (1) and is used to crush the floccules in the lower bin section (13) to release the water in the floccules; the clear water in the upper part of the bin body (1) overflows through the overflow port (111); and the ore materials deposited at the lower end of the lower bin section (13) are discharged through the slag discharge port (131).

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

3. The T-shaped bin thickener according to claim 2, characterized in that: The scraper mechanism (4) comprises a telescopic drive member (41) and a hollow scraper plate (42); the scraper plate (42) is horizontally slidably mounted on the inner bottom wall of the bin body (1); the telescopic drive member (41) is mounted on the lower end of the bin body (1), and its telescopic end is sealedly extended into the bin body (1) and is transmission-connected with the scraper plate (42); the telescopic drive member (41) is used to drive the scraper plate (42) to slide on the inner bottom wall of the bin body (1) so as to disturb the mineral material to fluidize and squeeze it to the slag discharge port (131).

4. The T-shaped bin thickener according to claim 1, characterized in that: The bottom wall of the silo (1) is in the shape of a cone with the tip pointing downwards, the slag discharge port (131) is arranged at the lowest horizontal position of the bottom wall of the silo (1), and a jet component (5) is arranged on the bottom wall of the silo (1), and the jet component (5) is used to inject fluid toward 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) to be discharged through the slag discharge port (131).

5. The T-shaped bin thickener according to claim 4, characterized in that: The jet component (5) comprises a plurality of multi-dimensional nozzles (51) embedded on the inner wall of the bin body (1), and the multi-dimensional nozzles (51) have a plurality of nozzles. The plurality of multi-dimensional nozzles (51) are connected to a fluid supply pipeline (52), and the fluid supply pipeline (52) is used to supply fluid to the multi-dimensional nozzles (51).

6. The T-shaped bin thickener according to claim 1, characterized in that: The mixing well (2) comprises a well body (23) in the shape of a trough and a partition (24) horizontally arranged in the well body (23), wherein the partition (24) divides the well body (23) into an upper trough chamber (231) and a lower chamber (232), an overflow port (234) communicating with the upper trough chamber is arranged at the side wall at the upper end of the mixing well (2), and the overflow port (234) is at the same level as the overflow port (111), the feed pipe (21) is tangentially connected and communicated with the side wall of the upper trough chamber (231), and the drug feed pipe (22) is communicated with the lower chamber (232) and extends inward to the inner middle part of the lower chamber (232). The edge of the partition (24) is provided with first drop holes (241) arranged at intervals in an annular direction, and the middle of the partition (24) is provided with second drop holes (242). The discharge port (235) is communicated with the lower chamber (232). The first drop holes (241) are used to allow coarse ore to fall into the lower chamber (232), and the second drop holes (242) are used to allow fine ore to fall into the lower chamber (232) to combine with the flocculant in the middle of the lower chamber (232) to flocculate into flocculants. The clean water in the upper storage section (11) overflows into the upper tank chamber (231) through the overflow port (234) to dilute the ore slurry.

7. The T-shaped bin thickener according to claim 6, characterized in that: The middle part of the bottom wall of the well body (23) protrudes upward to form a conical flow guide (233), and the discharge port (235) is arranged on the side wall of the lower end of the well body (23).

8. The T-shaped bin thickener according to claim 7, characterized in that: A plurality of discharge ports (235) are provided, and the plurality of discharge ports (235) are distributed at intervals along the circumferential direction at the side wall at the lower end of the well body (23).

9. The T-shaped bin thickener according to claim 6, characterized in that: A plurality of overflow ports (234) are provided, and the plurality of overflow ports (234) are distributed at intervals in an annular direction on the side wall of the well body (23).

10. The T-shaped bin thickener according to claim 1, characterized in that: The crushing member (3) further comprises a rotating driving member (31), a shaft member (32) and a crushing paddle (33); the shaft member (32) is vertically arranged in the silo (1), and its upper end passes through the middle of the mixing well (2), and can rotate relative to the silo (1) and the mixing well (2); the rotating driving member (31) is arranged at the upper end of the silo (1) and is transmission-connected to the upper end of the shaft member (32); the crushing paddle (33) is located in the inner middle part of the lower silo section (13) and is installed at the lower end of the shaft member (32); the crushing paddle (33) is a hollow plate formed by a plurality of rods (331) connected in a criss-cross manner.

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