Vortex clarifier

Abstract

The utility model relates to the technical field of vortex clarifiers, and provides a vortex clarifier which comprises an outer cylinder provided with a water outlet; the inner cylinder is arranged in the outer cylinder, the inner cylinder is provided with an upper column cavity and a clarifying cavity which are sequentially communicated from top to bottom, the cross sectional area of the clarifying cavity is gradually increased and then gradually decreased from the position close to the upper column cavity to the position away from the upper column cavity, and the minimum cross sectional area of the clarifying cavity is equal to the cross sectional area of the upper column cavity; a secondary clarification cavity is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, and the water outlet and the upper column cavity are communicated with the secondary clarification cavity; the water inlet pipe is arranged on the inner cylinder along the tangential direction and is communicated with the clarifying cavity. According to the technical scheme, the problem that a traditional vortex clarifier in the prior art only depends on the baffling effect of a layer grid type tower plate and cannot adapt to occasions with higher treatment efficiency and cleanliness requirements is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex clarifiers, and specifically relates to a vortex clarifier. Background Art

[0002] Vortex clarifier is a new type of water treatment equipment, mainly used to treat high turbidity sewage, with small footprint, environmental protection, simple structure, easy operation, economy and other advantages. It mainly uses micro-vortex coagulation and three-dimensional contact flocculation under the action of chemicals and vortexes, and makes full use of coagulation space, coagulation energy and floc activity to achieve rapid flocculation and sedimentation of impurities, thereby achieving deep purification and improving water quality.

[0003] When the vortex clarifier is working, mainly under the deflection effect of the multi-layer grid-type tower plates, the circulating water with the added reagents is changed in speed to form a water vortex, thereby forming flocs with strong adsorption force. The flocs repeatedly collide with tiny impurities in the water and adsorb them together to form large particles that sink. Finally, clean water overflows and is discharged from the top of the vortex clarifier.

[0004] With the continuous improvement of environmental protection requirements, the development trend of vortex clarifiers is towards higher efficiency and higher quality. However, traditional vortex clarifiers only rely on the deflection effect of layer grid tower plates, which cannot achieve higher processing efficiency requirements, and the effluent cleanliness does not meet the requirements. Utility Model Content

[0005] The utility model provides a vortex clarifier, which solves the problem that the traditional vortex clarifier in the related technology only relies on the deflection effect of the grid type tower plate and cannot adapt to the occasions requiring higher processing efficiency and cleanliness.

[0006] The technical solution of the utility model is as follows:

[0007] A vortex clarifier, comprising:

[0008] An outer cylinder, wherein the outer cylinder has a water outlet;

[0009] An inner cylinder, wherein the inner cylinder is arranged in the outer cylinder, and the inner cylinder has an upper column cavity and a clarification cavity which are sequentially connected from top to bottom, and the cross-sectional area of ​​the clarification cavity gradually increases from close to to far from the upper column cavity, and then gradually decreases, and a secondary clarification cavity is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, and the water outlet and the upper column cavity are both connected to the secondary clarification cavity;

[0010] A water inlet pipe is arranged on the inner cylinder and is communicated with the clarification chamber.

[0011] As a further technical solution, the inner cylinder comprises:

[0012] The inner cylinder, the upper cone cylinder and the lower cone cylinder are arranged in sequence from top to bottom. The inner cylinder has the upper cylinder cavity. The clarification cavity is formed between the upper cone cylinder and the lower cone cylinder. The secondary clarification cavity is formed between the outer wall of the inner cylinder, the outer wall of the upper cone cylinder, the outer wall of the lower cone cylinder and the inner wall of the outer cylinder. The water inlet pipe is tangentially arranged on the lower cone cylinder.

[0013] As a further technical solution, the top of the inner column is provided with a through hole, the through hole connecting the upper column chamber and the secondary clarification chamber, and there are a plurality of through holes, which are arranged along the circumference of the inner column.

[0014] As a further technical solution, it also includes:

[0015] A water inlet main pipe, the water inlet main pipe is arranged on the lower cone, one end of the water inlet main pipe is located at the center of the secondary clarification chamber, the water inlet pipe is connected to the water inlet main pipe, both ends of the water inlet pipe have openings, the openings are arranged along the tangential direction, and the two openings are respectively located on both sides of the water inlet main pipe, and the water outlet directions of the two openings are opposite.

[0016] As a further technical solution, it also includes:

[0017] A filler support, the filler support is arranged on the inner wall of the outer cylinder and is located in the secondary clarification chamber;

[0018] A filling piece is arranged on the filling bracket and is located below the water outlet.

[0019] As a further technical solution, the packing member is an inclined tube packing, and further comprises:

[0020] A middle cylinder, wherein the middle cylinder is arranged on the inner wall of the outer cylinder, and the cross-sectional area of ​​the middle cylinder is larger than the cross-sectional area of ​​the inner cylindrical cylinder, the inner cylindrical cylinder is located in the middle cylinder, the secondary clarification chamber is formed between the inner wall of the middle cylinder, the bottom surface of the filler bracket, the outer wall of the inner cylindrical cylinder, the outer wall of the upper cone cylinder, the outer wall of the lower cone cylinder and the inner wall of the outer cylinder, a filler chamber is formed between the outer wall of the middle cylinder, the top surface of the filler bracket and the inner wall of the outer cylinder, the water outlet is connected to the secondary clarification chamber through the filler chamber, and the filler member is located in the filler chamber.

[0021] As a further technical solution, it also includes:

[0022] An inner cylinder bracket is arranged on the inner wall of the outer cylinder and is located in the secondary clarification chamber. The inner cylinder is fixedly connected to the inner cylinder bracket, and the middle cylinder is arranged on the inner cylinder bracket. The filler is located above the upper cone.

[0023] As a further technical solution, the outer cylinder further has an overflow port, the overflow port is connected to the filler cavity, and the overflow port is located above the water outlet, and further includes:

[0024] The overflow weir plate is fixedly arranged on the inner wall of the outer cylinder and is located in the packing cavity. The overflow weir plate has an annular groove, which is connected to the water outlet and the packing cavity.

[0025] As a further technical solution, it also includes:

[0026] An inner tube mud discharge pipe 1, the inner tube mud discharge pipe passes through the lower cone tube and the outer tube, and is connected to the clarification chamber;

[0027] The outer tube mud discharge ring pipe is arranged on the inner wall of the outer tube and is located in the secondary clarification chamber. The outer tube mud discharge ring pipe has a mud discharge pipeline, and the mud discharge pipeline runs through the outer tube. The outer tube mud discharge ring pipe has a plurality of mud inlets, and the mud inlets are connected to the secondary clarification chamber.

[0028] As a further technical solution, it also includes:

[0029] The inner tube mud discharge pipe 2 is arranged on the inner tube mud discharge pipe 1 and is located in the clarification chamber. The inner tube mud discharge pipe 1 and the inner tube mud discharge pipe 2 are perpendicular to each other and are interconnected.

[0030] The working principle and beneficial effects of the utility model are:

[0031] In the utility model, in order to replace the traditional vortex clarifier which solely relies on the grid-type tower plate to meet the requirements of higher treatment efficiency and effluent cleanliness, the vortex clarifier is designed as an inner and outer double cylinder, and the circulating water added with the reagent is treated in stages. The primary treatment is first completed in the inner cylinder. When a relatively clean water flow overflows from the inner cylinder, most of the impurities are settled to the bottom of the vortex clarifier under the flocculation effect of the reagent in the secondary clarification chamber between the inner and outer cylinders, and finally clean water that meets the requirements overflows from the water outlet.

[0032] At the same time, the inner cylinder is designed as a combination of an upper column cavity and a clarification cavity connected from top to bottom, wherein the cross-sectional area of ​​the clarification cavity gradually increases from top to bottom and then gradually decreases, forming a specific flow field shape, which is conducive to the formation of a strong vortex motion of the incoming water in the clarification cavity, promoting the full separation of solid particles and water, and improving the clarification efficiency. The vortex is also conducive to the formation of flocs with strong adsorption force. The flocs repeatedly collide with tiny impurities in the water and adsorb them together to form large particles that sink. The tangential water inlet method of the water inlet pipe can instantly form a strong vortex flow field in the clarification cavity, enhance the solid-liquid separation effect, and effectively separate the solid particles in the incoming water in a short time, significantly shortening the time required for clarification and improving the equipment processing capacity. The vortex motion water flow slowly overflows from the upper column cavity to the secondary clarification cavity. Through the nested design of the inner cylinder and the outer cylinder, and the tangential water inlet method, the vortex clarifier has a compact structure and occupies a small area, which is conducive to the installation and arrangement of equipment in a limited space and reduces the project investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0034] Figure 1 This is a cross-sectional view of a vortex clarifier in the utility model;

[0035] Figure 2 This is a schematic diagram of the internal structure of a vortex clarifier in the utility model;

[0036] Figure 3 This is a schematic diagram of the inner cylinder structure in the utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the water inlet pipe and the water inlet main pipe in the utility model;

[0038] Figure 5 For this utility model Figure 2 Enlarged view of middle part B;

[0039] Figure 6 For this utility model Figure 1 Enlarged view of part A in the middle;

[0040] Figure 7 For this utility model Figure 2 Enlarged view of middle C;

[0041] Figure 8 For this utility model Figure 2 Enlarged view of the middle D part;

[0042] Fig. 9 It is a schematic diagram of the structure of the inner tube mud discharge pipe 1 and the inner tube mud discharge pipe 2 in the utility model;

[0043] Fig.10 This is a schematic diagram of the structure of the outer tube mud discharge ring pipe in the utility model;

[0044] Fig.11 This is a schematic diagram of the mud inlet structure in the utility model;

[0045] In the figure: 1. outer cylinder, 101. water outlet, 102. overflow port, 2. inner cylinder, 201. inner cylindrical cylinder, 202. upper cone cylinder, 203. lower cone cylinder, 204. upper column cavity, 205. clarification cavity, 206. secondary clarification cavity, 207. through hole, 3. water inlet pipe, 4. water inlet main pipe, 5. packing bracket, 6. packing member, 7. middle cylinder, 8. packing cavity, 9. inner cylindrical cylinder bracket, 10. overflow weir plate, 1001. annular groove, 11. inner cylinder mud discharge pipe 1, 12. outer cylinder mud discharge ring pipe, 1201. mud discharge pipeline, 1202. mud inlet, 13. inner cylinder mud discharge pipe 2. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0047] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0048] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0049] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] Reference Figure 1 to Figure 11, which is the first embodiment of the utility model, proposes a vortex clarifier, including: an outer cylinder 1, the outer cylinder 1 has a water outlet 101; an inner cylinder 2, the inner cylinder 2 is arranged in the outer cylinder 1, the inner cylinder 2 has an upper column cavity 204 and a clarification cavity 205 which are connected from top to bottom, the cross-sectional area of ​​the clarification cavity 205 gradually increases from approaching to far away from the upper column cavity 204, and then gradually decreases, a secondary clarification cavity 206 is formed between the outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1, the water outlet 101 and the upper column cavity 204 are both connected to the secondary clarification cavity 206; an inlet pipe 3, the inlet pipe 3 is arranged on the inner cylinder 2, and is connected to the clarification cavity 205.

[0051] In this embodiment, Figure 1~Figure 2 As shown, in order to replace the traditional vortex clarifier that relies solely on the grid-type tower plate to meet the requirements of higher treatment efficiency and effluent cleanliness, the vortex clarifier is designed as an inner and outer double cylinder, and the circulating water with the added reagent is treated in stages, thereby increasing the treatment time of the circulating water in the vortex clarifier and more comprehensively treating the impurities therein. The primary treatment is first completed in the inner cylinder 2. After a relatively clean water flow overflows from the inner cylinder 2, most of the impurities are settled to the bottom of the vortex clarifier under the flocculation effect of the reagent in the secondary clarification chamber 206 between the inner and outer cylinders 1, and finally clean water that meets the requirements overflows from the water outlet 101.

[0052] At the same time, the inner cylinder 2 is designed as a combination of an upper column chamber 204 and a clarification chamber 205 connected from top to bottom, wherein the cross-sectional area of ​​the clarification chamber 205 gradually increases from top to bottom and then gradually decreases, forming a specific flow field morphology, which is conducive to the formation of a strong vortex motion of the incoming water in the clarification chamber 205, promoting the full separation of solid particles and water, and improving the clarification efficiency. The vortex is also conducive to the formation of flocs with strong adsorption force, which repeatedly collide with tiny impurities in the water and adsorb them together to form large particles that sink. The tangential water inlet mode of the water inlet pipe 3 can instantly form a strong vortex flow field in the clarification chamber, enhance the solid-liquid separation effect, so that the solid particles in the incoming water are effectively separated in a short time, significantly shortening the time required for clarification, and improving the equipment processing capacity. The vortex motion water flow slowly overflows from the upper column chamber 204 to the secondary clarification chamber 206. Through the nested design of the inner cylinder 2 and the outer cylinder 1, and the tangential water inlet mode, the vortex clarifier has a compact structure and a small footprint, which is conducive to the installation and arrangement of the equipment in a limited space, reducing the engineering investment cost.

[0053] Further, the inner cylinder 2 comprises:

[0054] The inner cylinder 201, the upper cone 202 and the lower cone 203 are arranged in sequence from top to bottom. The inner cylinder 201 has an upper cylinder cavity 204. A clarification cavity 205 is formed between the upper cone 202 and the lower cone 203. A secondary clarification cavity 206 is formed between the outer wall of the inner cylinder 201, the outer wall of the upper cone 202, the outer wall of the lower cone 203 and the inner wall of the outer cylinder 1. The water inlet pipe 3 is tangentially arranged on the lower cone 203.

[0055] In this embodiment, Figure 3 As shown, in order to facilitate the production and installation of the inner cylinder 2, the inner cylinder 2 is divided into two parts, which are composed of an inner cylinder 201, an upper cone cylinder 202 and a lower cone cylinder 203 connected in sequence from top to bottom. The connection method can be bolted or wedge-block clamped, etc., which is convenient for disassembly and maintenance; at the same time, the refined division of the upper column chamber 204, the clarification chamber 205 and the secondary clarification chamber 206 allows the clarification process to be carried out with emphasis in different areas, which is conducive to targeted separation according to the sedimentation characteristics of solid particles of different particle sizes, and further improves the clarification efficiency; the water inlet pipe 3 is tangentially arranged on the lower cone cylinder 203 at the bottom to ensure the flocculation separation effect, and at the same time stably form a vortex flow field, which strengthens the separation effect of solid particles and water bodies, and at the same time helps to maintain the stability of the flow state in the clarification chamber, avoiding excessive or insufficient local flow velocity, thereby affecting the clarification effect.

[0056] Furthermore, a through hole 207 is provided at the top of the inner column 201 , and the through hole 207 connects the upper column chamber 204 and the secondary clarification chamber 206 . There are a plurality of through holes 207 , and the plurality of through holes 207 are arranged along the circumference of the inner column 201 .

[0057] In this embodiment, Figure 3 , 5 As shown, in order to ensure uniform water discharge in the inner cylinder 2, a plurality of circumferentially arranged through holes 207 are opened at the top of the inner cylinder 201. When the water of the inner cylinder 2 overflows to the secondary clarification chamber 206, in addition to part of the water overflowing from the top of the inner cylinder 201, part of the water will evenly flow out from the through holes 207, thereby reducing flow resistance, avoiding excessive local water flow that affects the clarification effect, and maintaining a stable flow state.

[0058] Furthermore, it also includes:

[0059] The water inlet main pipe 4 is arranged on the lower cone 203, one end of the water inlet main pipe 4 is located at the center of the secondary clarification chamber 206, the water inlet pipe 3 is connected to the water inlet main pipe 4, both ends of the water inlet pipe 3 have openings, the openings are arranged tangentially, and the two openings are respectively located on both sides of the water inlet main pipe 4, and the water outlet directions of the two openings are opposite.

[0060] In this embodiment, Figure 4As shown, an additional water inlet main pipe 4 is provided to first converge the water flow to the center of the clarification chamber 205, and then tangentially guide the water flow to the inner wall of the lower cone 203 through the two ends of the water inlet pipe 3 connected thereto. This symmetrical layout ensures that the incoming water forms a uniform and strong vortex flow field, avoids excessively high or low local flow rates, helps to improve the uniformity and stability of the clarification process, ensures that the solid-liquid separation effect in the entire clarification chamber is consistent, and improves the quality of the effluent water. While the two water inlet pipes 3 ensure the quality of the vortex flow field, they fully utilize the internal space, improve space utilization, and contribute to the miniaturization of the equipment design to adapt to a wider range of installation environments.

[0061] Furthermore, it also includes:

[0062] A filler support 5 is arranged on the inner wall of the outer cylinder 1 and is located in the secondary clarification chamber 206 ; a filler member 6 is arranged on the filler support 5 and is located below the water outlet 101 .

[0063] In this embodiment, Figure 1 , 6 As shown, in order to improve the water quality in the secondary clarification chamber 206, as well as the impurity sedimentation effect and enhance the clarification effect, a filler bracket 5 and a filler member 6 are additionally provided. In addition to providing support, the filler bracket 5 can also form additional physical interception and adsorption effects, further enhancing the removal capability of fine suspended matter and soluble impurities. The filler member 6 allows the suspended matter to have more opportunities to contact with the filler and be intercepted, while effectively blocking the water flow from rushing directly to the water outlet 101, guiding the water flow to form a zigzag flow on the surface of the filler member 6, thereby improving the clarification efficiency.

[0064] Further, the packing member 6 is an inclined tube packing, and further comprises:

[0065] The middle cylinder 7 is arranged on the inner wall of the outer cylinder 1, and the cross-sectional area of ​​the middle cylinder 7 is larger than the cross-sectional area of ​​the inner cylindrical cylinder 201. The inner cylindrical cylinder 201 is located in the middle cylinder 7. A secondary clarification chamber 206 is formed between the inner wall of the middle cylinder 7, the bottom surface of the filling bracket 5, the outer wall of the inner cylindrical cylinder 201, the outer wall of the upper cone cylinder 202, the outer wall of the lower cone cylinder 203 and the inner wall of the outer cylinder 1. A filling chamber 8 is formed between the outer wall of the middle cylinder 7, the top surface of the filling bracket 5 and the inner wall of the outer cylinder 1. The water outlet 101 is connected to the secondary clarification chamber 206 through the filling chamber 8, and the filling member 6 is located in the filling chamber 8.

[0066] In this embodiment, Figure 2 , 6As shown, the filler 6 is further limited to an oblique tube filler, which prolongs the residence time of the water flow in the secondary clarification chamber 206 and strengthens the sedimentation effect of suspended matter. At the same time, since the use requirement of the filler 6 is the bottom water inlet form, the cross-sectional area of ​​the added middle cylinder 7 is set to be larger than the cross-sectional area of ​​the inner cylinder 201. On the other hand, it is also to form a filler cavity 8 between the top surface of the filler bracket 5 and the inner wall of the outer cylinder 1 to optimize the filler distribution. When working, after passing through the secondary clarification chamber 206, the water flow needs to pass through the oblique tube filler in the filler cavity 8 from the bottom and then flow to the water outlet, which effectively prolongs the residence time of the water flow in the equipment. The water flow and impurities collide with each other in the oblique tube filler, thereby improving the clarification efficiency.

[0067] Furthermore, it also includes:

[0068] The inner cylinder bracket 9 is arranged on the inner wall of the outer cylinder 1 and is located in the secondary clarification chamber 206. The inner cylinder 201 is fixedly connected to the inner cylinder bracket 9, and the middle cylinder 7 is arranged on the inner cylinder bracket 9. The filler 6 is located above the upper cone 202.

[0069] In this embodiment, in order to ensure that the middle cylinder 7 is stably located between the outer cylinder 1 and the inner cylinder 201, the inner cylinder bracket 9 is installed and fixedly welded or threadedly connected to the inner cylinder 201, and is fixedly connected to the middle cylinder 7 to avoid shaking or deviation caused by water flow impact and the like; the filler member 6 is limited to be located above the upper cone 202 to ensure that the water flow can all pass through the filler member 6 before being discharged from the water outlet 101.

[0070] Furthermore, the outer tube 1 also has an overflow port 102, which is connected to the filling chamber 8 and is located above the water outlet 101. It also includes: an overflow weir plate 10, which is fixedly arranged on the inner wall of the outer tube 1 and is located in the filling chamber 8. The overflow weir plate 10 has an annular groove 1001, which is connected to the water outlet 101 and is connected to the filling chamber 8.

[0071] In this embodiment, Figure 2 , 7 As shown, an overflow port 102 is added to connect to the filling chamber 8. When the water outlet 101 is blocked, the water level inside the equipment is too high, and the excess water can be automatically discharged through the overflow port 102 above the water outlet 101, effectively preventing overflow caused by excessive water accumulation inside the equipment, ensuring stable operation of the equipment; an overflow weir plate 10 of an annular groove 1001 connected to the water outlet 101 is further installed, and the annular groove 1001 realizes uniform water collection. At the same time, the tooth-shaped design can effectively intercept scum floating on the water surface to prevent it from flowing out directly with the water flow, thereby ensuring the quality of the outlet water.

[0072] Furthermore, it also includes:

[0073] The inner tube mud discharge pipe 11, the inner tube 2 mud discharge pipe passes through the lower cone 203 and the outer tube 1, and is connected to the clarification chamber 205; the outer tube mud discharge ring pipe 12, the outer tube mud discharge ring pipe 12 is arranged on the inner wall of the outer tube 1, and is located in the secondary clarification chamber 206. The outer tube mud discharge ring pipe 12 has a mud discharge pipeline 1201, and the mud discharge pipeline 1201 passes through the outer tube 1. The outer tube mud discharge ring pipe 12 has a plurality of mud inlets 1202, and the mud inlets 1202 are connected to the secondary clarification chamber 206.

[0074] In this embodiment, Fig. 9 , 10 As shown, the impurities settled at the bottom of the inner and outer cylinders 1 need to be discharged to ensure the stable operation of the equipment, so an inner cylinder mud discharge pipe 11 and an outer cylinder mud discharge ring pipe 12 are respectively installed on the lower cone cylinder 203 at the bottom of the clarification chamber 205 and the inner wall of the outer cylinder 1 at the bottom of the secondary clarification chamber 206. The negative pressure pump directly absorbs the impurities through the inner cylinder mud discharge pipe 11, and the ring pipe design of the outer cylinder 1 is in line with the situation of more comprehensive adsorption of impurities. When the negative pressure pump adsorbs, the impurities at the bottom of the secondary clarification chamber 206 will enter from several mud inlets 1202, collect the impurities quickly and evenly, and discharge them from the mud discharge pipeline 1201 running through the outer cylinder 1, so as to achieve efficient mud discharge.

[0075] Furthermore, it also includes:

[0076] The inner tube mud discharge pipe 2 13 is arranged on the inner tube mud discharge pipe 1 1 and is located in the clarification chamber 205. The inner tube mud discharge pipe 1 11 and the inner tube mud discharge pipe 2 13 are perpendicular to each other and are interconnected.

[0077] In this embodiment, Figure 9~Figure 11 As shown, an inner tube mud discharge pipe 2 13 connected to the inner tube mud discharge pipe 11 is installed, and the two are arranged vertically to each other, which can more comprehensively absorb impurities at the bottom of the clarification chamber 205, form a three-dimensional mud discharge network, enhance the mud discharge capacity of the inner tube 2, and ensure the long-term stable operation of the equipment.

[0078] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A vortex clarifier, characterized in that: include: An outer cylinder (1), the outer cylinder (1) having a water outlet (101); An inner cylinder (2), the inner cylinder (2) being arranged inside the outer cylinder (1), the inner cylinder (2) comprising an upper column cavity (204) and a clarification cavity (205) which are connected in sequence from top to bottom, the cross-sectional area of ​​the clarification cavity (205) gradually increasing from close to and away from the upper column cavity (204) and then gradually decreasing, a secondary clarification cavity (206) being formed between the outer wall of the inner cylinder (2) and the inner wall of the outer cylinder (1), the water outlet (101) and the upper column cavity (204) both being connected to the secondary clarification cavity (206); A water inlet pipe (3), the water inlet pipe (3) being arranged on the inner cylinder (2) and being in communication with the clarification chamber (205).

2. A vortex clarifier according to claim 1, characterized in that: The inner cylinder (2) comprises: An inner cylinder (201), an upper cone cylinder (202) and a lower cone cylinder (203) are arranged in sequence from top to bottom. The inner cylinder (201) has an upper cylinder cavity (204). The clarification cavity (205) is formed between the upper cone cylinder (202) and the lower cone cylinder (203). The secondary clarification cavity (206) is formed between the outer wall of the inner cylinder (201), the outer wall of the upper cone cylinder (202), the outer wall of the lower cone cylinder (203) and the inner wall of the outer cylinder (1). The water inlet pipe (3) is tangentially arranged on the lower cone cylinder (203).

3. A vortex clarifier according to claim 2, characterized in that: The inner column (201) has a through hole (207) at the top, the through hole (207) connecting the upper column chamber (204) and the secondary clarification chamber (206), and there are a plurality of through holes (207), which are arranged along the circumference of the inner column (201).

4. A vortex clarifier according to claim 2, characterized in that: Also includes: A water inlet main pipe (4), the water inlet main pipe (4) being arranged on the lower cone (203), one end of the water inlet main pipe (4) being located at the center of the secondary clarification chamber (206), the water inlet pipe (3) being in communication with the water inlet main pipe (4), both ends of the water inlet pipe (3) having openings, the openings being arranged in a tangential direction, and the two openings being respectively located on both sides of the water inlet main pipe (4), and the water outlet directions of the two openings being opposite.

5. A vortex clarifier according to claim 2, characterized in that: Also includes: A filler support (5), the filler support (5) being arranged on the inner wall of the outer cylinder (1) and located in the secondary clarification chamber (206); A filling piece (6), wherein the filling piece (6) is arranged on the filling bracket (5) and is located below the water outlet (101).

6. A vortex clarifier according to claim 5, characterized in that: The packing element (6) is an inclined tube packing, and further comprises: A middle cylinder (7), wherein the middle cylinder (7) is arranged on the inner wall of the outer cylinder (1), and the cross-sectional area of ​​the middle cylinder (7) is greater than the cross-sectional area of ​​the inner cylindrical cylinder (201), the inner cylindrical cylinder (201) is located inside the middle cylinder (7), the inner wall of the middle cylinder (7), the bottom surface of the filler support (5), the outer wall of the inner cylindrical cylinder (201), the outer wall of the upper cone cylinder (202), the outer wall of the lower cone cylinder (203) and the inner wall of the outer cylinder (1) form the secondary clarification chamber (206), the outer wall of the middle cylinder (7), the top surface of the filler support (5) and the inner wall of the outer cylinder (1) form the filler chamber (8), the water outlet (101) is connected to the secondary clarification chamber (206) through the filler chamber (8), and the filler element (6) is located in the filler chamber (8).

7. A vortex clarifier according to claim 6, characterized in that: Also includes: An inner cylinder support (9), wherein the inner cylinder support (9) is arranged on the inner wall of the outer cylinder (1) and is located in the secondary clarification chamber (206); the inner cylinder (201) is fixedly connected to the inner cylinder support (9), and the middle cylinder (7) is arranged on the inner cylinder support (9); and the filler (6) is located above the upper cone cylinder (202).

8. A vortex clarifier according to claim 7, characterized in that: The outer cylinder (1) further comprises an overflow port (102), the overflow port (102) being connected to the filling cavity (8), and the overflow port (102) being located above the water outlet (101), and further comprising: An overflow weir plate (10), the overflow weir plate (10) being fixedly arranged on the inner wall of the outer cylinder (1) and being located in the stuffing cavity (8), the overflow weir plate (10) having an annular groove (1001), the annular groove (1001) being connected to the water outlet (101), and the annular groove (1001) being connected to the stuffing cavity (8).

9. A vortex clarifier according to claim 7, characterized in that: Also includes: An inner tube mud discharge pipe 1 (11), wherein the inner tube (2) mud discharge pipe penetrates the lower cone tube (203) and the outer tube (1), and is connected to the clarification chamber (205); An outer tube mud discharge ring pipe (12), the outer tube mud discharge ring pipe (12) being arranged on the inner wall of the outer tube (1) and located in the secondary clarification chamber (206), the outer tube mud discharge ring pipe (12) having a mud discharge pipeline (1201), the mud discharge pipeline (1201) penetrating the outer tube (1), the outer tube mud discharge ring pipe (122) having a plurality of mud inlets (1202), the mud inlets (1202) being connected to the secondary clarification chamber (206).

10. A vortex clarifier according to claim 9, characterized in that: Also includes: The second inner tube mud discharge pipe (13) is arranged on the first inner tube mud discharge pipe (11) and is located in the clarification chamber (205). The first inner tube mud discharge pipe (11) and the second inner tube mud discharge pipe (13) are perpendicular to each other and are interconnected.

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