A bottom dredging tailings flotation device
By designing the guide pipe, filter components, and mixing components, the problem of impeller jamming was solved, enabling full flotation of minerals and recycling of flotation solution, thus improving the efficiency and quality of mineral settling treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- COMPREHENSIVE SERVICE GUARANTEE CENT OF ENERGY BUREAU OF DONGSHENG DISTRICT ORDOS CITY
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-12
AI Technical Summary
In existing bottom-diving tailings flotation devices, the impeller is prone to jamming during rotation, and the first and second helical gears are easily soaked in the flotation solution, causing them to jam as well, which affects the efficiency and quality of mineral settling.
The system employs a guide pipe, a filter assembly, and a mixing assembly. It is connected to a rotary compensator via a blower, and a geared motor drives the hollow shaft and hollow plate to rotate, generating bubbles that fully contact the minerals. The flotation liquor is filtered through a filter screen, and the minerals are recycled using a servo motor and a water pump.
It improves the efficiency and quality of mineral settling treatment, avoids vortex generation, and achieves full flotation of minerals and recycling of flotation solution.
Smart Images

Figure CN224346070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flotation device technology, specifically a bottom-drilling tailings flotation device. Background Technology
[0002] Flotation involves using surfactants—foaming agents—that generate a large number of bubbles. When air is introduced into water or when air enters the water due to agitation, the hydrophobic end of the surfactant is oriented towards the air bubble at the gas-liquid interface, while the hydrophilic end remains in the solution, forming a bubble. Another surfactant (usually cationic surfactants, but also including aliphatic amines) acts as a collector and is adsorbed onto the surface of the solid mineral powder. This adsorption has a certain selectivity depending on the mineralization properties. The basic principle is to utilize the lattice defects on the crystal surface, with the outward hydrophobic end partially inserted into the bubble. In this way, the bubble may carry away the specified mineral powder during the flotation process, achieving the purpose of mineral processing. However, existing bottom-digging tailings flotation devices still have certain shortcomings in use, such as…
[0003] Publication number CN117983420A discloses a bottom-digging tailings flotation device. This invention provides a bottom-digging tailings flotation device capable of lifting and dispersing minerals settled at the top of the flotation frame while avoiding vortex formation, thus improving the efficiency and quality of mineral settling. The bottom-digging tailings flotation device includes a flotation frame, a slag discharge pipe, a feed pipe, and a stirring mechanism. A collection trough is opened on the upper front side of the flotation frame, a slag discharge pipe is connected to the lower left side of the flotation frame, and a feed pipe is connected to the lower front side of the flotation frame. A stirring mechanism for stirring the flotation liquor is provided on the flotation frame. This invention uses the rotation of the stirring blades to lift the minerals settled at the bottom of the flotation frame upwards, and the impeller further disperses them. The turbulence plate also disrupts the rotational flow of the water flow, enabling the lifting and dispersing of minerals settled at the top of the flotation frame while avoiding vortex formation, thereby improving the efficiency and quality of mineral settling.
[0004] The above document describes a method that uses an impeller to lift and disperse the minerals settled at the bottom. However, the impeller has dead angles when rotating, and the first and second helical gears are prone to getting stuck when immersed in the flotation solution. Therefore, a bottom-digging tailings flotation device is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a bottom-drilling tailings flotation device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a bottom-diving tailings flotation device, comprising: a flotation box, a guide pipe, a filter assembly, and a mixing assembly;
[0007] The front of the flotation tank is connected to a guide pipe by bolts, a filter assembly is installed below the guide pipe, and a mixing assembly is installed inside the flotation tank.
[0008] The mixing assembly includes a flotation tank on one side connected to a geared motor via a support. The output end of the geared motor is connected to a hollow shaft via bolts. The hollow shaft rotates through the inner wall of the flotation tank via a sealed bearing. A rotary compensator is connected to one side of the hollow shaft via bolts. The rotary compensator is connected to one side of the flotation tank via a bracket.
[0009] A hollow plate is connected to the outer side of the hollow shaft by screws, and a one-way valve a is connected through the inner wall of the hollow plate.
[0010] Preferably, an air pipe is embedded in one side of the inner wall of the flotation tank, and an arc-shaped pipe is connected to one side of the air pipe, the arc-shaped pipe being embedded in the inner wall of the flotation tank.
[0011] Preferably, a one-way valve b is connected through the inner wall of the arc-shaped tube, and the one-way valve b is embedded in the inner wall of the flotation tank.
[0012] Preferably, the filtration assembly includes a baffle box at the front of the flotation tank connected by bolts, the baffle box abutting below the guide pipe, and a servo motor connected to the front of the baffle box via a motor mount. The output end of the servo motor passes through the inner wall of the baffle box and is connected to a shaft roller by screws. The shaft roller rotates through the inner wall of the baffle box via a sealed bearing, and a perforated belt abuts the outer side of the shaft roller. A filter screen is attached to the outer side of the perforated belt.
[0013] A solenoid valve is connected through the rear part of the inner wall of the partition box, and the solenoid valve is connected through the lower part of the inner wall of the flotation box.
[0014] Preferably, a plate shell is connected to the inner wall of the partition box by screws, and a spring is connected to the inner wall of the plate shell by screws. The other end of the spring abuts against a scraper, the scraper abuts against a filter screen, and a collection box is placed below the scraper. The collection box slides through one side of the inner wall of the partition box.
[0015] Preferably, a water pump is bolted to one side of the partition box, a water pipe is bolted to one side of the water pump, and the other end of the water pipe is connected through to one side of the inner wall of the flotation tank.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This bottom-drilling tailings flotation device connects a blower to a rotary compensator and an air pipe, and starts a geared motor to stir and blow air into the flotation liquid in the flotation tank, so that the minerals in the flotation liquid can fully contact the air bubbles and float to the surface.
[0018] 2. This bottom-drilling tailings flotation device filters the flotated minerals through a filter screen to remove the flotation liquid, and opens a solenoid valve to filter the remaining minerals in the flotation tank that cannot be flotated.
[0019] 3. This bottom-drilling tailings flotation device uses a water pump to send the filtered flotation solution from the baffle box back to the flotation tank via a water pipe for recycling. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a three-dimensional structural diagram of the partition box of this utility model;
[0022] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the flotation box of this utility model;
[0023] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the hollow plate of this utility model;
[0024] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the partition box of this utility model;
[0025] Figure 6 This is an enlarged view of the structure of part A of this utility model.
[0026] In the diagram: 1. Flotation box; 2. Guide pipe; 3. Filter assembly; 301. Baffle box; 302. Servo motor; 303. Shaft roller; 304. Hollow belt; 305. Filter screen; 306. Scraper; 307. Collection box; 308. Solenoid valve; 309. Water pump; 310. Water pipe; 4. Mixing assembly; 401. Gear motor; 402. Hollow shaft; 403. Rotary compensator; 404. Hollow plate; 405. One-way valve a; 406. Air pipe; 407. Arc pipe; 408. One-way valve b. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-4This utility model provides a technical solution: a bottom-digging tailings flotation device, comprising: a flotation box 1, a guide pipe 2, a filter assembly 3, and a mixing assembly 4; the front of the flotation box 1 is connected to the guide pipe 2 by bolts, the filter assembly 3 is arranged below the guide pipe 2, and the mixing assembly 4 is arranged inside the flotation box 1; the mixing assembly 4 includes a geared motor 401 connected to one side of the flotation box 1 by a support, the output end of the geared motor 401 is connected to a hollow shaft 402 by bolts, the hollow shaft 402 rotates through a sealed bearing on the inner wall of the flotation box 1, and a rotary compensator 403 is connected to one side of the hollow shaft 402 by bolts, the rotary compensator 403 is connected to one side of the flotation box 1 by a bracket.
[0029] This bottom-drilling tailings flotation device connects a blower to a rotary compensator 403, which can deliver sealed gas while rotating.
[0030] exist Figure 3 and Figure 4 In the middle, a hollow plate 404 is connected to the outer side of the hollow shaft 402 by screws, and a one-way valve a405 is connected through the inner wall of the hollow plate 404.
[0031] This bottom-digging tailings flotation device starts by starting the geared motor 401, which drives the hollow shaft 402 to rotate. The hollow shaft 402 drives the hollow plate 404 to rotate, bringing up the minerals at the bottom of the flotation box 1. When the hollow plate 404 is in a vertical position, the minerals fall and are dispersed by gravity and agitation. When the blower supplies air to the rotary compensator 403, the air enters the hollow plate 404 through the hollow shaft 402 and is blown out through the one-way valve a405, generating bubbles. This agitates the flotation liquid and allows the minerals in the flotation liquid to fully contact the bubbles and float to the surface.
[0032] exist Figure 1 and Figure 3 In the process, an air pipe 406 is embedded on one side of the inner wall of the flotation tank 1, and an arc-shaped pipe 407 is connected to one side of the air pipe 406. The arc-shaped pipe 407 is embedded on the inner wall of the flotation tank 1.
[0033] In this bottom-drilling tailings flotation device, the gas pipe 406 is connected to the arc-shaped pipe 407. One side of the arc-shaped pipe 407 is connected to several other sets of arc-shaped pipes 407 through a pipe. After the gas pipe 406 is connected to the blower, the gas enters the multiple sets of arc-shaped pipes 407.
[0034] exist Figure 3 In the middle, a one-way valve b408 is connected through the inner wall of the arc-shaped tube 407, and the one-way valve b408 is embedded in the inner wall of the flotation tank 1.
[0035] In this bottom-drilling tailings flotation device, gas inside the arc-shaped pipe 407 is ejected from the one-way valve b408, causing bubbles to form on the inner wall of the flotation tank 1, which floats the minerals deposited at the bottom of the flotation tank 1. The one-way valves a405 and b408 can prevent the flotation liquor from flowing back.
[0036] exist Figure 1 , Figure 2 , Figure 4 and Figure 5 In the process, the filter assembly 3 includes a partition box 301 at the front of the flotation box 1 connected by bolts. The partition box 301 abuts against the bottom of the guide pipe 2. A servo motor 302 is connected to the front of the partition box 301 via a motor mount. The output end of the servo motor 302 passes through the inner wall of the partition box 301 and is connected to a shaft roller 303 by screws. The shaft roller 303 rotates on the inner wall of the partition box 301 through a sealed bearing. A perforated belt 304 abuts against the outer side of the shaft roller 303. A filter screen 305 is attached to the outer side of the perforated belt 304.
[0037] In this bottom-drilling tailings flotation device, the minerals, foam, and flotation liquor floating in the flotation tank 1 flow into the baffle box 301 through the guide pipe 2. After being filtered by the filter screen 305, the minerals remain on the filter screen 305, the foam naturally breaks up after settling, and the flotation liquor remains at the bottom of the baffle box 301. The servo motor 302 is controlled by the HJ-03A intelligent motion controller. The HJ-03A intelligent motion controller starts the servo motor 302 to drive the shaft roller 303 to rotate. The shaft roller 303 drives the hollow belt 304 and the filter screen 305 to move, thus conveying the minerals.
[0038] exist Figure 5 and Figure 6 In the middle, a plate shell 311 is connected to the inner wall of the partition box 301 by screws. A spring 312 is connected to the inner wall of the plate shell 311 by screws. The other end of the spring 312 abuts against a scraper 306. The scraper 306 abuts against the filter screen 305. A collection box 307 is placed below the scraper 306. The collection box 307 slides through one side of the inner wall of the partition box 301.
[0039] In this bottom-digging tailings flotation device, spring 312 pushes scraper 306 against filter screen 305. When scraper 306 wears, spring 312 pushes scraper 306 to abut against filter screen 305 in real time. When scraper 306 is worn short, the shell 311 can be removed and scraper 306 can be pulled out for replacement. When filter screen 305 moves, minerals on the surface of filter screen 305 fall into collection box 307. Minerals with strong adsorption are scraped off by scraper 306 and fall into collection box 307. Collection box 307 can be pulled out from one side of partition box 301 for dumping. Scraper 306 is installed on the inner wall of partition box 301 by screws and can be removed for replacement after long-term use and wear.
[0040] exist Figure 2 and Figure 3 In the middle, a solenoid valve 308 is connected through the rear part of the inner wall of the partition box 301, and the solenoid valve 308 is connected through the lower part of the inner wall of the flotation box 1.
[0041] When the bottom-diving tailings flotation device is opened, the remaining minerals that cannot be floated in the flotation box 1 can flow into the partition box 301 for screening.
[0042] exist Figure 1 In the middle, a water pump 309 is bolted to one side of the partition box 301, and a water pipe 310 is bolted to one side of the water pump 309. The other end of the water pipe 310 is connected to the inner wall of the flotation box 1.
[0043] When the bottom-drilling tailings flotation device is started, the water pump 309 can send the flotation liquid filtered in the baffle box 301 back to the flotation box 1 through the water pipe 310 for recycling.
[0044] In summary: When using this bottom-drilling tailings flotation device, firstly, connect the blower to the rotary compensator 403 and the air pipe 406, and send the flotation liquid and minerals into the flotation tank 1 through the conveying pipe. Start the blower and the reduction motor 401 to carry out flotation. The bubbles and the flotated minerals flow from the notch at the front of the flotation tank 1 into the baffle box 301 through the guide pipe 2, allowing the flotation liquid to drain and the remaining bubbles to break naturally. Periodically start the servo motor 302 to rotate slowly, sending the flotated minerals into the baffle box 301. After no more minerals are floated out in the collection box 307, the floated minerals in the collection box 307 are poured into a container for collection. Then, the solenoid valve 308 is opened to allow the remaining unfloatable minerals in the flotation box 1 to flow into the partition box 301 for screening. The water pump 309 is then started to send the filtered flotation liquid back to the flotation box 1 through the water pipe 310. The collection box 307 is then removed, and the unfloatable minerals are stored separately. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A bottom-diving tailings flotation device, comprising: The flotation tank (1), the guide pipe (2), the filter assembly (3), and the mixing assembly (4) are characterized in that; The front of the flotation tank (1) is connected to a guide pipe (2) by bolts. A filter assembly (3) is provided below the guide pipe (2). A mixing assembly (4) is provided inside the flotation tank (1). The mixing component (4) includes a flotation tank (1) on one side connected to a geared motor (401) via a support. The output end of the geared motor (401) is connected to a hollow shaft (402) via bolts. The hollow shaft (402) rotates through the inner wall of the flotation tank (1) via a sealed bearing. A rotary compensator (403) is connected to one side of the hollow shaft (402) via bolts. The rotary compensator (403) is connected to one side of the flotation tank (1) via a bracket. A hollow plate (404) is connected to the outer side of the hollow shaft (402) via screws. A one-way valve a (405) is connected through the inner wall of the hollow plate (404). The filter assembly (3) includes a baffle box (301) at the front of the flotation box (1) connected by bolts. The baffle box (301) abuts against the bottom of the guide pipe (2). A plate shell (311) is connected to the inner wall of the baffle box (301) by screws. A spring (312) is connected to the inner wall of the plate shell (311) by screws. The other end of the spring (312) abuts against a scraper (306).
2. The bottom-diving tailings flotation device according to claim 1, characterized in that: The mixing component (4) also includes an air pipe (406) embedded in one side of the inner wall of the flotation tank (1), and an arc-shaped pipe (407) is connected to one side of the air pipe (406), which is embedded in the inner wall of the flotation tank (1).
3. The bottom-diving tailings flotation device according to claim 2, characterized in that: A one-way valve b (408) is connected through the inner wall of the arc-shaped tube (407), and the one-way valve b (408) is embedded in the inner wall of the flotation tank (1).
4. The bottom-diving tailings flotation device according to claim 1, characterized in that: The filter assembly (3) also includes a servo motor (302) connected to the front of the partition box (301) via a motor mount. The output end of the servo motor (302) passes through the inner wall of the partition box (301) and is connected to a roller (303) via screws. The roller (303) rotates through the inner wall of the partition box (301) via a sealed bearing. A perforated belt (304) abuts against the outer side of the roller (303). A filter screen (305) is attached to the outer side of the perforated belt (304). The scraper (306) abuts against the filter screen (305).
5. A bottom-diving tailings flotation device according to claim 1, characterized in that: A solenoid valve (308) is connected through the rear part of the inner wall of the partition box (301), and the solenoid valve (308) is connected through the lower part of the inner wall of the flotation box (1). A collection box (307) is placed below the scraper (306), and the collection box (307) slides through one side of the inner wall of the partition box (301).
6. The bottom-diving tailings flotation device according to claim 1, characterized in that: A water pump (309) is bolted to one side of the partition box (301), and a water pipe (310) is bolted to one side of the water pump (309). The other end of the water pipe (310) is connected through to one side of the inner wall of the flotation tank (1).