Intelligent efficient medicine-free thickener

Abstract

The utility model discloses an intelligent efficient medicine-free concentrator which comprises a machine body, a clear water area, a filtering and settling area and a concentrating area are sequentially arranged in the machine body from top to bottom, and a filtering medium is arranged in the filtering and settling area; a feeding pipe is installed in the center of the interior of the machine body, a feeding port in the tangential direction of the feeding pipe is formed in the upper end of the feeding pipe and extends out of the upper end of the machine body, and the lower end of the feeding pipe extends to the junction of the filtering and settling area and the concentration area; a central pipe is also fixedly mounted in the machine body and is coaxially inserted into the feeding pipe from the lower end of the feeding pipe, and a plurality of layers of conical discs arranged at intervals are mounted at the lower end of the central pipe and are arranged in a concentration area of the machine body; a concentrated discharge hole is formed in the bottom of the machine body; a clarified water outlet and an external force cleaning inlet are formed in the upper part of the machine body. The device is small in occupied area, does not need to add any medicament, is suitable for various coal slime water and sewage which are difficult to settle and argillize, improves the coal slime dehydration treatment capacity to the greatest extent, and reduces the water content of coal slime products.

Description

Technical Field

[0001] This utility model relates to the field of coal slurry water concentration and purification treatment technology in mines and coal preparation plants, specifically to an intelligent, high-efficiency, and chemical-free thickener. Background Technology

[0002] Currently, coal preparation plants in my country widely use thickening devices such as rake thickeners, inclined plate sedimentation tanks, deep cones, and sludge traps for coal slurry purification. The main problems with these devices are:

[0003] (1) Large footprint. Currently, the diameter of thickeners in large coal preparation plants is over 30 meters, and the diameter of thickeners in coking coal preparation plants has reached 50 meters. Given the scarcity of land resources, thickeners that occupy almost the entire area of ​​the main plant are obviously a huge burden.

[0004] (2) High construction costs. Although the cost of the thickener itself is not high among the many pieces of equipment in a coal preparation plant, the cost of the thickening tank, auxiliary components and roof (in cold northern regions) often reaches several million or even tens of millions of yuan.

[0005] (3) Low settling efficiency. With the increase in high-ash fine mud content, the settling efficiency of the thickener decreases, with a unit processing capacity of only 3m³. 3 ~4m 3 / m 2 Even with the addition of flocculants, the sedimentation effect cannot be effectively improved.

[0006] (4) Difficult to maintain and high operating costs. Although the inclined plate sedimentation tank occupies a small area, it relies on the placement of a large number of inclined plates to increase the so-called effective settling area. The concrete inclined plates are heavy and the construction is extremely complicated; although the glass fiber inclined plates are light, they are not strong enough and are prone to aging and breakage after a period of use, making replacement troublesome.

[0007] (5) Large dosage. The so-called high-efficiency thickening of inclined plate sedimentation tanks largely depends on the extremely high dosage. The dosage of flocculants such as polyacrylamide / polyaluminum is usually 3 to 5 times that of traditional thickeners. Excessive use of flocculants will make subsequent coal slime dewatering more difficult.

[0008] (6) Poor buffering capacity. Since the diameter of inclined plate sedimentation tanks is generally less than 20 meters and the capacity is relatively small, they are not adaptable enough to the load impact changes of coal slurry water and are difficult to play the role of buffering or emergency water storage.

[0009] In summary, existing thickening units in mines and coal preparation plants have problems related to land occupation, investment, efficiency, and impact on subsequent dewatering. Utility Model Content

[0010] The purpose of this invention is to address the shortcomings of the existing technology and provide an intelligent, efficient, drug-free concentrator.

[0011] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an intelligent and efficient drug-free concentrator, comprising a body, wherein the interior of the body is arranged from top to bottom as a clear water zone, a filtration and sedimentation zone, and a concentration zone, wherein a filter medium is installed in the filtration and sedimentation zone; an inlet pipe is installed at the center of the interior of the body, wherein the upper end of the inlet pipe has an inlet port along its tangential direction, the inlet port extending outward from the upper end of the body, and the lower end of the inlet pipe extending to the junction of the filtration and sedimentation zone and the concentration zone; a central tube is also fixedly installed inside the body, wherein the central tube is coaxially inserted into the inlet pipe from the lower end, the upper end of the central tube being higher than the height of the inlet port in the inlet pipe, and multiple layers of spaced conical discs are fixedly installed at the lower end of the central tube, the conical discs being placed in the concentration zone of the body; a concentration outlet is provided at the bottom of the body, and a clarified water outlet and an external cleaning inlet are provided at the upper end of the body.

[0012] Furthermore, the body is a tank-like structure with an upper cylinder and a lower cone. The upper part of the cylinder is a clear water zone, the middle part of the cylinder is a filtration and sedimentation zone, and the lower part of the cylinder and the cone are a concentration zone. An observation window is provided on the outer wall of the lower part of the cylinder.

[0013] Furthermore, the filter medium includes a plurality of filter elements arranged in a matrix, each filter element including a support frame and a filter cloth; the upper end of the filter medium is lower than the level of the feed inlet, and its lower end is higher than the bottom end of the feed pipe.

[0014] Furthermore, the top end of the feed tube extends upwards out of the top end of the machine body and is fixed thereon, and its outer end is sealed and fixed by an arc-shaped cap.

[0015] Furthermore, the outer diameter of the central tube is smaller than the inner diameter of the feed tube, and the lower end of the central tube is provided with multiple feed holes along its length direction, arranged at equal intervals.

[0016] Furthermore, multiple conical discs are coaxially fitted onto the outer side of the lower end of the central tube, stacked at equal intervals, with the diameter of the upper conical disc being larger than that of the lower conical disc, decreasing layer by layer.

[0017] Furthermore, a T-shaped pipe fitting is fixedly connected to the outer end of the concentrated discharge port.

[0018] Furthermore, the height of the clarified water outlet is the same as the height of the feed inlet, and its position is opposite to the feed inlet.

[0019] Furthermore, the external cleaning inlet has two parts: one is a compressed gas inlet and the other is a clean water inlet. The two parts are arranged opposite each other on the upper side wall of the above-mentioned body. The outer end of the compressed gas inlet is connected to a compressed gas input device, and the outer end of the clean water inlet is connected to a clean water input device.

[0020] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure and a small footprint, which is 1 / 4 of the footprint of a traditional thickener with the same processing capacity. The load is adjustable and the operating cost is low. No reagents need to be added during the thickening, settling and clarification process. It is suitable for various coal slurry water and sewage that are difficult to settle and muddy, and has a good promoting effect on the subsequent coal slurry dewatering process, maximizing the coal slurry dewatering treatment capacity and reducing the moisture content of the coal slurry product. Attached Figure Description

[0021] Figure 1 This is a front view of the overall structure of this utility model;

[0022] Figure 2 This is a right view of the overall structure of this utility model;

[0023] Figure 3 for Figure 2 Cross-sectional view along the BB direction;

[0024] Figure 4 for Figure 3 Enlarged view of section C;

[0025] Figure 5 for Figure 1 A cross-sectional view along the AA direction;

[0026] Figure 6 This is a control diagram of the present invention;

[0027] In the diagram: 1. Machine body, 2. Feed pipe, 3. Central pipe, 4. Conical disc, 5. Filter medium, 6. T-fitting, 7. Observation window, 8. Arc-shaped cover, 11. Clear water zone, 12. Filtration and sedimentation zone, 13. Concentration zone, 14. Clarified water outlet, 15. Concentrated discharge outlet, 16. Compressed gas inlet, 17. Clear water inlet, 21. Feed inlet, 31. Feed hole. Detailed Implementation

[0028] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "coaxial", "center", "bottom", "top", "upper end", and "lower end" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only used to facilitate the description of the structural relationship between the components in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, be constructed and operated in a specific orientation, or be construed as a limitation on this utility model.

[0029] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0031] like Figures 1 to 5 As shown, an intelligent, efficient, drug-free concentrator includes an organic body 1, which is a tank-like structure with an upper cylindrical part and a lower conical part, wherein the bottom of the cylindrical part and the bottom of the conical part are connected and fixed together; the internal space of the organic body 1 is arranged from top to bottom as a clear water zone 11, a filtration and sedimentation zone 12, and a concentration zone 13, wherein the clear water zone 11 is located in the upper part of the cylindrical part, the middle part of the cylindrical part is the filtration and sedimentation zone 12, and the lower part of the cylindrical part and the conical part is the concentration zone 13. At the same time, a concentration outlet 15 is provided at the bottom of the entire organic body 1, and a three-way pipe fitting 6 is connected and installed at the outer end of the concentration outlet 15.

[0032] A feed pipe 2 is fixedly installed at the center of the internal structure of the machine body 1. The upper end of the feed pipe 2 extends upward through the top of the machine body 1 and is sealed and fixed. The top of the feed pipe 2 is sealed and fixed by an arc-shaped cap 8. A feed inlet 21 is also provided on the upper end side wall of the feed pipe 2 along its tangential direction. The feed inlet 21 is tubular, and its outer end extends outward through the outer side wall of the machine body 1 for the entry of coal slurry water and sewage. The lower end of the feed pipe 2 extends downward to the junction of the filtration sedimentation zone 12 and the concentration zone 13.

[0033] The filter medium 5 is installed in the filter settling zone 12 of the body 1. The filter medium 5 includes a number of filter elements arranged in a matrix array, which fill the interior of the body 1 circumferentially. Each filter element includes a support frame and a filter cloth, which are arranged in a columnar shape and are flush with each other. The upper end of the filter medium 5 is lower than the flush height of the feed inlet 21, and its lower end is higher than the bottom end of the feed pipe 2.

[0034] A central tube 3 is also fixedly installed inside the body 1, and is fixed to the inner side wall of the body 1 by multiple transverse connecting ribs. The upper end of the central tube 3 is coaxially inserted into the inside of the feed tube 2 from the bottom end of the feed tube 2. Its outer diameter is smaller than the inner diameter of the feed tube 2, and its upper end is higher than the level of the feed inlet 21 and lower than the inner top of the feed tube 2. A multi-layer conical disc 4 is coaxially fitted on the outer side of the lower end of the central tube 3. The multi-layer conical disc 4 is stacked at equal intervals. The diameter of the upper conical disc 4 is larger than the diameter of the lower conical disc 4, and the diameter decreases layer by layer. All the conical discs 4 are placed in the concentration zone 13 at the junction of the cylinder and the cone of the body 1. The lower end of the central tube 3 has multiple feed holes 31 along its length on the circumferential side wall, and multiple rows are arranged at equal intervals around its circumferential side wall. At the same time, all the feed holes 31 are within the coverage area of ​​the multi-layer conical disc 4.

[0035] The upper side wall of the machine body 1 is also provided with a clarified water outlet 14 communicating with its interior. The height of the clarified water outlet 14 is flush with the height of the feed inlet 21, and its position is opposite to the feed inlet 21. The upper side wall of the machine body 1 is also provided with an external force cleaning inlet, which includes a compressed gas inlet 16 and a clean water inlet 17, which are arranged opposite each other and perpendicular to the position of the clarified water outlet 14. The outer end of the compressed gas inlet 16 is connected to a compressed gas input device, and the outer end of the clean water inlet 17 is connected to a clean water input device. At the same time, an observation window 7 is also provided on the outer side wall of the machine body 1, located on the bottom side wall of the cylinder, which allows internal viewing of the concentration zone 13.

[0036] The specific working principle is as follows: (Refer to...) Figure 6As shown, the entire thickener is intelligently controlled via a PLC control cabinet circuit connection. The outer end of the feed inlet 21 is connected to the coal slurry feed pump via a pipeline. A feed flow meter and a feed pneumatic valve are installed on the connecting pipeline. The feed pump controls the frequency converter to adjust the coal slurry feed rate. The coal slurry enters the feed pipe 2 through the feed inlet 21 in a tangential swirling manner, energizing the solids in the feed liquid. It flows out from the bottom of the feed pipe 2, accelerating the settling speed. Then, it passes through the multi-layer conical disc 4 in the thickening zone 13, increasing the settling area in a limited space. The extremely fine solid particles then pass under the conical disc 4 and enter the central pipe 3 through the feed hole 31 on the central pipe 3. It is sprayed out from the top of the central pipe 3 and mixed with the tangential feed. With the energy of the feed, it collides and clumps with the larger particles in the subsequent feed, and settles again, improving the settling effect. Subsequently, the liquid in the coal slurry water enters the filtration settling zone 12 from below the filter medium 5 for filtration, ensuring the quality of the clarified water in the top clear water zone 11. The qualified clarified water overflows through the clarified water outlet 14.

[0037] When the air permeability of the above-mentioned filter medium 5 exceeds the set parameter, the coal slurry water feeding is stopped; firstly, compressed air is injected through the compressed gas inlet 16 to perform reverse cleaning of the entire filter medium 5, and then clean water is injected through the clean water inlet 17 for secondary cleaning to ensure the stable operation of the thickener.

[0038] The aforementioned internal filtration and sedimentation dual-function structure of the machine body 1 features a specially designed filter media 5 with maximized individual side lengths to achieve maximum particle contact area within a limited space. The concentrate, after being guided, stripped, and settled by external force, is efficiently discharged through a three-way pipe fitting 6. This intelligent, high-efficiency, chemical-free thickener replaces traditional mine sedimentation tanks and coal preparation plant thickeners (such as rake thickeners, inclined plate sedimentation tanks, and deep cone thickeners), improving thickening capacity and water quality.

[0039] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A smart and efficient drug-free concentrator, characterized by: The machine body is internally provided with, from top to bottom, a clear water zone, a filter settling zone and a concentration zone, and a filter medium is installed in the filter settling zone; a feed pipe is installed in the center of the machine body, and the upper end of the feed pipe is provided with a feed inlet extending outward from the tangential direction of the feed pipe, the lower end of the feed pipe extending to the junction of the filter settling zone and the concentration zone; a center pipe is also fixedly installed in the machine body, the center pipe coaxially inserted into the feed pipe from the lower end of the feed pipe, and the upper end of the center pipe is higher than the height of the feed inlet in the feed pipe, the lower end of the center pipe is fixedly provided with a plurality of layers of conical discs arranged at intervals, and the conical discs are arranged in the concentration zone of the machine body; the bottom of the machine body is provided with a concentration outlet, and the upper end of the machine body is provided with a clear water outlet and an external force cleaning inlet.

2. The intelligent and efficient medicine-free concentrate machine according to claim 1, characterized in that: The machine body is a tank-shaped structure with a cylindrical upper part and a conical lower part, the upper end of the cylindrical part being the clear water zone, the middle part of the cylindrical part being the filter settling zone, and the lower end of the cylindrical part and the conical part being the concentration zone, and an observation window is arranged on the outer side wall of the lower end of the cylindrical part.

3. The intelligent and efficient drug-free concentrate machine according to claim 1, wherein: The filter medium comprises a plurality of filter cores arranged in a matrix, each filter core comprising a support framework and a filter cloth; the upper end of the filter medium is lower than the height of the feed inlet, and the lower end of the filter medium is higher than the bottom end of the feed pipe.

4. The intelligent and efficient drug-free concentrate machine according to claim 1, wherein: The top end of the feed pipe extends upwardly beyond the top end of the machine body and is fixed, and the outer end of the feed pipe is sealed and fixed by an arc-shaped cover.

5. The intelligent and efficient drug-free concentrate machine according to claim 1, wherein: The outer diameter of the center pipe is smaller than the inner diameter of the feed pipe, and the lower end of the center pipe is provided with a plurality of feed holes arranged at equal intervals along the length direction of the center pipe.

6. The intelligent and efficient drugless concentrator of claim 1, wherein: A plurality of layers of conical discs are coaxially sleeved on the outer side of the lower end of the center pipe, and are arranged at equal intervals from top to bottom, the diameter of the conical disc in the upper layer is larger than the diameter of the conical disc in the lower layer, and the diameter gradually decreases layer by layer.

7. The intelligent and efficient drug-free concentrate machine of claim 1, wherein: The outer end of the concentration outlet is fixedly connected with a three-way pipe fitting.

8. The intelligent and efficient drug-free concentrate machine of claim 1, wherein: The clear water outlet is arranged at a height level with the height of the feed inlet, and the arrangement position of the clear water outlet is opposite to the feed inlet.

9. The intelligent and efficient drug-free concentrate machine of claim 1, wherein: The external force cleaning inlet is provided with two, one being a compressed gas inlet and the other being a clear water inlet, and the two are oppositely arranged on the side wall of the upper end of the machine body, the outer end of the compressed gas inlet is connected to a compressed gas input device, and the outer end of the clear water inlet is connected to a clear water input device.

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