Continuous deep-cone flocculation thickener

Abstract

The utility model discloses a continuous type deep cone flocculation thickener which comprises a feeding part with equal feeding, a sedimentation part with a built-in flocculation sedimentation space, a transmission part for draining and scraping settled sand, a discharging part for discharging overflow and settled sand, and a fixing part for fixing and supporting equipment, the device is characterized in that the feeding part comprises a feeding hole, a central feeding well and a flow guide disc; the precipitation part comprises a cylindrical groove, a conical groove and a sampling opening; the transmission part comprises a driving motor, a connector, a main shaft and a variable-diameter inclined scraper blade; the fixing part comprises an upper cover, a driving motor bracket and a supporting seat; and the discharging part comprises an overflow port and an underflow port. The equipment solves the problems of non-uniform feeding, poor flocculation effect, low particle precipitation rate, high overflow water turbidity, low precipitation sand concentration and the like in the current flocculation concentration technology.

Description

Technical Field

[0001] This utility model belongs to the field of tailings thickening, specifically relating to a continuous deep cone flocculation thickener. Background Technology

[0002] With the development and utilization of mineral resources, the market demand for thickeners continues to grow. Especially in industries such as mining, metallurgy, coal, chemicals, and building materials, thickeners have become indispensable equipment. However, since current thickeners primarily use gravity settling, the settling effect is often unsatisfactory for lighter tailings, failing to achieve effective solid-liquid separation. Furthermore, flocculation technology is widely used in tailings thickening processes, and the internal flow field characteristics of the thickener directly affect the particle flocculation effect. These internal flow field characteristics are determined by the particle structure, so optimizing and improving the structure is crucial for enhancing the thickener's efficiency. Currently, existing thickeners suffer from problems such as uneven feeding, poor flocculation, slow particle settling rate, high overflow turbidity, and low sediment concentration. A continuous deep cone flocculation thickener is of great significance for improving thickening efficiency and effectively enhancing the economic benefits of mines and related factories. Utility Model Content

[0003] In view of the shortcomings of existing technologies, such as low flocculation and sedimentation rates and poor thickening effects, the purpose of this invention is to provide a continuous deep cone flocculation thickener. This device allows for uniform feeding of the slurry at the feed section, reducing the turbulence intensity in the sedimentation section. The transmission unit configuration improves the flocculation and sedimentation rate, and the variable-diameter inclined scraper effectively removes underflow sedimentary sand in a timely manner.

[0004] To achieve the above objectives, this utility model provides a continuous deep cone flocculation thickener.

[0005] This utility model is achieved through the following technical solution:

[0006] A continuous deep cone flocculation thickener includes a feeding section with uniform feed, a settling section with a built-in flocculation sedimentation space, a transmission section for guiding and scraping precipitated sand, a discharge section for discharging overflow and precipitated sand, and a fixing section for fixing and supporting the equipment. Its features are:

[0007] The feeding section includes a feeding inlet, a central feeding well, and a guide plate;

[0008] The sedimentation section includes a cylindrical groove, a conical groove, and a sampling port;

[0009] The transmission unit includes a drive motor, a connector, a main shaft, and a variable diameter inclined scraper;

[0010] The fixing part includes an upper cover, a drive motor bracket, and a support base;

[0011] The discharge section includes an overflow port and a bottom flow port;

[0012] The feed inlet is connected to the central feed well and is fixedly installed on the upper cover; the top of the central feed well is fixedly installed below the upper cover, and the lower part is located in the conical groove; the guide plate is located below the central feed well, and the center of the guide plate is slidably connected to the main shaft;

[0013] The cylindrical groove is located above the conical groove and is concentrically arranged. The top of the cylindrical groove is fixedly connected to the bottom of the upper cover, and the flange of the conical groove is fixed to the support base.

[0014] The main shaft passes through the upper cover, and the bottom of the main shaft is connected to the support base; the drive motor is connected to the main shaft through the connector; the variable diameter inclined scraper is located at the bottom of the conical groove, the bottom surface of the blade is inclined, the inclination angle is the same as the cone angle of the conical groove, and three different radial lengths can scrape away the sediment at different positions, greatly improving the sediment scraping efficiency; the main shaft passes through the center of the variable diameter inclined scraper;

[0015] The top cover, main shaft, central feed well, guide plate, and conical groove are concentrically configured.

[0016] The drive motor drives the main shaft to rotate, which in turn drives the variable diameter inclined scraper to rotate.

[0017] The bottom outlet is located at the center of the bottom of the conical groove; the overflow outlet is located on the upper side wall of the cylindrical groove.

[0018] Furthermore, in the above technical solution, the central feed well is a variable-diameter cylindrical tube, which can greatly improve the flocculation effect of the thickener at different radial heights. In addition, the diameter of the upper section is twice that of the lower section.

[0019] Furthermore, in the above technical solution, the guide plate is conical.

[0020] Furthermore, in the above technical solution, the drive motor is fixedly connected to the upper cover via a drive motor bracket.

[0021] Furthermore, in the above technical solution, the drive motor is a vertically arranged adjustable speed drive motor, which can improve the efficiency of the variable diameter inclined scraper in removing sand from the underflow sediment.

[0022] Furthermore, in the above technical solution, the variable diameter inclined scraper includes three blades of unequal length, the blades are arranged vertically in the diameter direction, the bottom surface of the blades is inclined, the inclination angle is the same as the cone angle of the conical groove, and an axial guide rod is provided at the end of the blade.

[0023] The beneficial effects of this utility model are as follows:

[0024] (1) The continuous deep cone flocculation thickener described in this utility model has a cone-shaped guide plate configured together with the central feed well, which increases the uniformity of material distribution and reduces the disturbance of the feed slurry to the fluid in the sedimentation system, thus solving the problem of uneven feeding in the existing flocculation thickening process.

[0025] (2) The continuous deep cone flocculation thickener described in this utility model uses a variable diameter inclined scraper to accelerate the timely and effective discharge of qualified underflow sedimentation sand; enhance the flocculation sedimentation rate, improve the overflow water quality, and thus improve the thickening efficiency of fine particle slurry, especially the thickening efficiency of mine tailings, and solve the problems of poor overflow clarification and insufficient underflow concentration in the existing flocculation thickening process.

[0026] (3) The continuous deep cone flocculation thickener described in this utility model improves the recycling rate of mine wastewater, reduces water pollution, and reduces transportation energy consumption and protects the mine environment when transporting high-concentration bottom sediment. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0028] Figure 1 This is a front view of the continuous deep cone flocculation thickener structure described in Example 1;

[0029] Figure 2 Left view of the continuous deep cone flocculation thickener structure described in Example 1;

[0030] Figure 3 This is a top view of the continuous deep cone flocculation thickener structure described in Example 1;

[0031] Figure 4 This is a schematic diagram of the rake frame structure described in Example 1.

[0032] In the diagram: 1. Drive motor; 2. Top cover; 3. Cylindrical groove; 4. Overflow port; 5. Central feed well; 6. Sampling port; 7. Rake frame; 8. Support base; 9. Bottom flow port; 10. Connector; 11. Feed inlet; 12. Conical groove; 13. Guide plate; 14. Main shaft; 15. Guide rod; 16. Variable diameter inclined scraper; 17. Drive motor bracket. Specific implementation methods

[0033] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0034] Example 1

[0035] like Figure 1-4As shown, a continuous deep cone flocculation thickener includes a feeding section for uniform feeding, a settling section with a built-in flocculation and sedimentation space, a transmission section for guiding and scraping precipitated sand, a discharge section for discharging overflow and precipitated sand, and a fixing section for fixing and supporting the equipment. Its features are:

[0036] The feeding section includes a feeding port 11, a central feeding well 5, and a guide plate 13;

[0037] The sedimentation section includes a cylindrical groove 3, a conical groove 12, and a sampling port 6;

[0038] The transmission unit includes a drive motor 1, a connector 10, a main shaft 14, and a variable diameter inclined scraper 16;

[0039] The fixing part includes an upper cover 2 and a support base 8;

[0040] The discharge section includes an overflow port 4 and a bottom outlet 9;

[0041] The feed inlet 11 is connected to the central feed well 5 and is fixedly installed on the upper cover 2; the top of the central feed well 5 is fixedly installed below the upper cover 2, and the lower part is located in the conical groove 12; the guide plate 13 is located below the central feed well 5, and the center of the guide plate 13 is slidably connected to the main shaft 14; the distance between the guide plate 13 and the lower end of the central feed well 5 is adjustable;

[0042] The top of the conical groove 12 is fixedly connected to the bottom of the upper cover 2, and the bottom is fixedly connected to the support base 8;

[0043] The main shaft 14 passes through the upper cover 2, and the bottom of the main shaft 14 is connected to the support base 8; the drive motor 1 is connected to the main shaft 14 through the connector 10; the variable diameter inclined scraper 16 is located at the bottom of the conical groove 12; the main shaft 14 passes through the variable diameter inclined scraper 16.

[0044] The main shaft 14, the central feed well 5, and the guide plate 13 are located radially at the center of the conical groove 12;

[0045] The drive motor 1 drives the main shaft 14 to rotate, which in turn drives the variable diameter inclined scraper 16 to rotate.

[0046] The bottom outlet 9 is located at the center of the bottom of the conical groove 12; the overflow outlet 4 is located on the upper side wall of the cylindrical groove 3.

[0047] Furthermore, in the above technical solution, the central feed well 5 is a variable diameter cylindrical tube, with the upper section diameter being twice the lower section diameter.

[0048] Furthermore, in the above technical solution, the guide plate 13 is conical.

[0049] Furthermore, in the above technical solution, the drive motor 1 is fixedly connected to the upper cover 2 via the drive motor bracket 17.

[0050] Furthermore, in the above technical solution, the drive motor 1 is a vertically arranged adjustable speed drive motor 1.

[0051] Furthermore, in the above technical solution, the variable diameter inclined scraper 16 includes three blades of different lengths, the blades are arranged vertically in the diameter direction, the bottom surface of the blades is inclined, the inclination angle is the same as the cone angle of the conical groove, and an axial guide rod 15 is provided at the end of the blades.

[0052] The flocculated sedimentation slurry continues to flow towards the lower section of the cylinder of the central feed well 5 under the action of gravity. The slurry enters the sedimentation system evenly through the guide plate 13. The guide plate 13 is conical, which is conducive to uniform material distribution and at the same time reduces the disturbance of the flocculation and sedimentation flow of the slurry in the conical tank 12 by the high flow rate of the feed slurry. The distance between the guide plate 13 and the lower end of the central feed well 5 can be controlled and adjusted according to the particle properties parameters in the feed and the slurry feed rate. When the floc size in the slurry is large and the flow rate is low, the distance between the guide plate 13 and the lower end of the central feed well 5 increases, and vice versa.

[0053] After the slurry enters the flocculation and sedimentation zone of the conical trough 12, it is divided into four zones along the axial height of the conical trough 12, forming a clarification zone, a sedimentation zone, a transition zone, and a compression zone from top to bottom. The overflow water from the upper clarification zone flows out through the overflow port 4 and is recycled. The slurry in the transition zone becomes thicker due to the flow stabilization effect of the axial guide rod 15. The thick slurry in the compression zone at the bottom of the conical trough 12 scrapes away the sediment at different radial positions under the action of the variable diameter inclined scraper 16, and then discharges the underflow sediment slurry through the underflow port 9, thus completing the flocculation, thickening, and separation of the fine particle dilute slurry.

[0054] Example 2

[0055] Furthermore, in the above technical solution, the sand discharge system consists of an overflow port 4 and a bottom flow port 9; a bottom flow port 9 is provided on the support base 8.

[0056] Furthermore, in the above technical solution, the fixing system also includes a drive motor bracket 17; the drive motor bracket 17 for fixing the drive motor 1 is connected to the top of the upper cover 2.

[0057] Through the technical solutions described in the above embodiments, the continuous deep cone flocculation thickener of this utility model improves the flocculation and sedimentation rate of fine particles through the central feed well 5. The conical guide plate 13 configured together with the central feed well 5 increases the uniformity of material distribution, and the variable diameter inclined scraper 16 accelerates the timely and effective discharge of qualified underflow sediment. This solves the problems of uneven feeding, poor flocculation effect, slow particle sedimentation rate, high overflow turbidity, and low sedimentation sand concentration in the current flocculation and thickening technology.

[0058] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A continuous deep cone flocculation thickener, comprising a feeding section with uniform feeding, a settling section with built-in flocculation and sedimentation space, a transmission section for guiding and scraping precipitated sand, a discharge section for discharging overflow and precipitated sand, and a fixing section for fixing and supporting the equipment, characterized in that: The feeding section includes a feeding inlet, a central feeding well, and a guide plate; The sedimentation section includes a cylindrical trough, a conical trough, and a sampling port; The transmission unit includes a drive motor, a connector, a main shaft, and a variable diameter inclined scraper; The fixing part includes an upper cover, a drive motor bracket, and a support base; The discharge section includes an overflow port and a bottom flow port; The feed inlet is connected to the central feed well and is fixedly installed on the upper cover; the top of the central feed well is fixedly installed below the upper cover, and the lower part is located in the conical groove; The guide plate is located below the central feed well, and the center of the guide plate is slidably connected to the main shaft; The cylindrical groove is located above the conical groove and is concentrically arranged. The top of the cylindrical groove is fixedly connected to the bottom of the upper cover, and the flange of the conical groove is fixed to the support base. The main shaft passes through the upper cover, and the bottom of the main shaft is connected to the variable diameter inclined scraper through a connector; the drive motor is fixed on the drive motor bracket and connected to the main shaft through a connector; the variable diameter inclined scraper is located at the bottom of the conical groove; The top cover, main shaft, central feed well, guide plate, and conical groove are concentrically configured; the drive motor drives the main shaft to rotate, which in turn drives the variable diameter inclined scraper to rotate. The bottom outlet is located at the center of the bottom of the conical groove; the overflow outlet is located on the upper side wall of the cylindrical groove.

2. The continuous deep cone flocculation thickener according to claim 1, characterized in that: The central feed well is a variable diameter cylindrical tube, with the upper section diameter being twice the lower section diameter.

3. The continuous deep cone flocculation thickener according to claim 1, characterized in that: The guide plate is conical.

4. A continuous deep cone flocculation thickener according to claim 1, characterized in that: The drive motor is a vertically arranged adjustable speed drive motor, and is fixedly connected to the upper cover by a drive motor bracket.

5. A continuous deep cone flocculation thickener according to claim 1, characterized in that: The variable diameter inclined scraper includes three blades of unequal length, which are arranged vertically in the diameter direction. The bottom surface of the blades is inclined, and the inclination angle is the same as the cone angle of the conical groove.

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