Filtering device for acid-soluble material liquid slag
By employing a cage-type filter and a liquid pump during the rare earth ore dissolution process, combined with double-layer stirring blades and stirring rods, the problems of filter clogging and rare earth element waste during rare earth ore dissolution were solved, achieving efficient solid-liquid separation and rare earth element recovery, and improving product yield and quality.
Patent Information
- Application Number
- CN202423154742.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In existing technologies, the acid-soluble residue generated during the dissolution of rare earth ore contains large particles that easily clog the filter screen, leading to overflow of the liquid and waste of rare earth elements. Furthermore, a large amount of rare earth elements remain unextracted in the filter residue, reducing yield.
The system employs a cage-type filter and a liquid pump, combined with double-layer stirring blades and stirring rods. A rotary motor drives the inner cylinder of the filter screen to achieve solid-liquid separation, avoid clogging, and improve the recovery rate of rare earth elements.
It effectively avoids filter clogging, improves the recovery rate of rare earth elements, reduces raw material waste, and increases product yield and quality, making it suitable for industrial applications.
Smart Images
Figure CN223570185U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to solid -liquid separation filtration technical field especially relates to a kind of filtering device of acid-dissolving material liquid slag. BACKGROUND
[0002] In the dissolution process of rare earth ore, first, rare earth chloride solution is prepared: rare earth ore (rare earth oxide), hydrochloric acid and water are put into a reactor with stirring device, and the weight ratio of rare earth oxide, hydrochloric acid and water and the pH value during the reaction are controlled, so that most of the rare earth oxide reacts with hydrochloric acid to form a chloride solution containing rare earth ions.
[0003] After the acid-dissolving reaction, the solid-liquid mixed acid-dissolving material liquid slag is generally filtered by a filter screen to collect the liquid product. However, there are some large particles in the acid-dissolving slag, which are difficult to dissolve and easily block the filter screen. The material liquid cannot pass through the filter screen, causing the material liquid to overflow and waste of raw materials. Moreover, the filter residue after filtering with the filter screen still contains a large amount of rare earth elements, which has not extracted the rare earth elements to the maximum extent, further reducing the yield. SUMMARY
[0004] The utility model aims at overcoming the above-mentioned insufficient, provide a kind of filtering device of acid-dissolving material liquid slag, additional squirrel-cage filter device and liquid ejector, to avoid blockage, improve yield, avoid raw material waste, reduce production cost.
[0005] The utility model aims at overcoming the above-mentioned insufficient, provide a kind of filtering device of acid-dissolving material liquid slag, additional squirrel-cage filter device and liquid ejector, to avoid blockage, improve yield, avoid raw material waste, reduce production cost.
[0006] A kind of filtering device of acid-dissolving material liquid slag, it includes acid-dissolving reactor, filter device and liquid ejector connected in sequence;The acid-dissolving reactor includes kettle body, the bottom of the kettle body is equipped with a discharge port, the discharge port is communicated to filter device by material guide pipe;
[0007] The filter device includes an inclined cylinder, the front end of the cylinder is higher than the rear end of the cylinder, the cylinder is arranged on a support base, and the front end and the rear end of the support base support the front end and the rear end of the cylinder through support columns respectively;The front part of the cylinder is provided with a feed inlet, and the feed inlet is communicated with the material guide pipe through a feed pipe;The rear end of the cylinder is provided with a slag discharge port, and the slag discharge port is connected to one end of a slag guide pipe, and the other end of the slag guide pipe is connected to a slag collecting groove;A filter fence inner cylinder is arranged in the cylinder, and the filter fence inner cylinder is connected to a rotating motor, which is arranged on the outer wall of the cylinder;
[0008] The cylinder is also provided with a liquid outlet, which is arranged below the middle part of the filter fence inner cylinder, and the liquid outlet is connected to a liquid outlet pipe, and the liquid outlet pipe is communicated with a liquid guide pipe, and the liquid guide pipe is connected to the liquid inlet of the liquid ejector.
[0009] Further, the kettle body top center is equipped with a driving motor, the driving motor is connected with a stirring shaft, the stirring shaft is arranged on the inner center shaft of the kettle body, the upper stirring rod is arranged on the right side of the middle part of the stirring shaft, and the upper stirring blade is arranged on the left side of the middle part of the stirring shaft, the upper stirring rod is inclined downward, the upper stirring blade is inclined upward, and the upper stirring rod and the upper stirring blade are located on the same axis.
[0010] Further, the kettle body top center is equipped with a driving motor, the driving motor is connected with a stirring shaft, the stirring shaft is arranged on the inner center shaft of the kettle body, the upper stirring rod is arranged on the right side of the middle part of the stirring shaft, and the upper stirring blade is arranged on the left side of the middle part of the stirring shaft, the upper stirring rod is inclined downward, the upper stirring blade is inclined upward, and the upper stirring rod and the upper stirring blade are located on the same axis.
[0011] Further, the inner wall of the kettle body is equipped with a plurality of groups of scraper plates arranged in parallel.
[0012] Further, the filter device is provided with a discharge plug-in valve between the liquid outlet pipe and the liquid guide pipe, which is used for controlling the opening and closing of the discharge end.
[0013] Further, the filter device is provided with a discharge pressure sensor on the liquid outlet pipe, which is used for detecting the pressure of the discharge flow.
[0014] Compared with the prior art, the acid-soluble slurry filtering device has the advantages that:
[0015] The acid-soluble slurry filtering device provided by the utility model is characterized in that: the acid-soluble slurry filtering device comprises an acid-soluble reaction kettle, a filter device and a liquid lifting device, the acid-soluble reaction kettle is provided with a double-layer stirring blade and a stirring rod, the filter device is connected with the acid-soluble reaction kettle, and the liquid lifting device is connected with the filter device. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the utility model.
[0017] Figure 2 It is a structural schematic view of the filter device of the utility model.
[0018] Among them:
[0019] Acid dissolution reaction kettle 1, kettle body 1.1, stirring shaft 1.2, drive motor 1.3, upper stirring rod 1.4, upper stirring blade 1.5, lower stirring rod 1.6, lower stirring blade 1.7, scraper 1.8, discharge port 1.9, material guide pipe 2, filter device 3, cylinder 3.1, feed pipe 3.2, filter fence inner cylinder 3.3, rotary motor 3.4, liquid outlet pipe 3.5, discharge pressure sensor 3.6, discharge plug valve 3.7, support base 3.8, slag guide pipe 4, slag collecting groove 5, liquid guide pipe 6, liquid lifting device 7. DETAILED DESCRIPTION
[0020] In order to better understand the technical scheme of the utility model, the following will be combined with relevant drawings to make detailed description. It should be understood that the following specific examples are not used to limit the specific implementation of the technical scheme of the utility model, and they are only the implementation of the technical scheme of the utility model. It should be pointed out that the description of the position relationship of each component in this paper, such as A component is located above B component, is based on the relative position of each component in the drawing, and is not used to limit the actual position relationship of each component. Example 1
[0021] Referring to Figures 1-2 , Figure 1 The structure diagram of the utility model is drawn. As shown in the figure, the utility model relates to a filter device for acid dissolution slurry, which comprises acid dissolution reaction kettle 1, filter device 3 and liquid lifting device 7 connected in sequence,
[0022] The acid dissolution reaction kettle 1 comprises kettle body 1.1, the top center of the kettle body 1.1 is provided with drive motor 1.3, the drive motor 1.3 is connected with stirring shaft 1.2, the stirring shaft 1.2 is arranged on the inner center shaft of the kettle body 1.1, the middle right of the stirring shaft 1.2 is provided with upper stirring rod 1.4, and the left side is provided with upper stirring blade 1.5, the upper stirring rod 1.4 is inclined downward, the upper stirring blade 1.5 is inclined upward, and the upper stirring rod 1.4 and the upper stirring blade 1.5 are located on the same axis; the bottom left of the stirring shaft 1.2 is provided with lower stirring rod 1.6, and the right side is provided with lower stirring blade 1.7, the lower stirring rod 1.6 is inclined downward, the lower stirring blade 1.7 is inclined upward, and the lower stirring rod 1.6 and the lower stirring blade 1.7 are located on the same axis;
[0023] The inner wall of the kettle body 1.1 is provided with a plurality of groups of parallelly arranged scrapers 1.8; the bottom of the kettle body 1.1 is provided with a discharge port 1.9, and the discharge port 1.9 is communicated to the filter device 3 through the material guide pipe 2.
[0024] The filtering device 3 comprises a cylinder 3.1 arranged obliquely, the front end of the cylinder 3.1 is higher than the rear end of the cylinder 3.1, the cylinder 3.1 is arranged on a supporting base 3.8, and the front end and the rear end of the supporting base 3.8 support the front end and the rear end of the cylinder 3.1 through supporting columns respectively;
[0025] The front part of the cylinder 3.1 is provided with an inlet, the inlet is communicated with the guide pipe 2 through an inlet pipe 3.2, the rear end of the cylinder 3.1 is provided with a slag outlet, the slag outlet is connected with one end of a slag guide pipe 4, and the other end of the slag guide pipe 4 is connected into a slag collecting groove 5;
[0026] The cylinder 3.1 is internally provided with a filtering fence inner cylinder 3.3, the filtering fence inner cylinder 3.3 is connected with a rotating motor 3.4, the rotating motor 3.4 is arranged on the outer wall of the cylinder 3.1 and drives the filtering fence inner cylinder 3.3 to rotate in the cylinder 3.1, so as to form a squirrel-cage type filtering structure;
[0027] The cylinder 3.1 is further provided with a liquid outlet, the liquid outlet is arranged below the middle part of the filtering fence inner cylinder 3.3, one end of a liquid outlet pipe 3.5 is connected with the liquid outlet, the other end of the liquid outlet pipe 3.5 is provided with a discharge plug valve 3.7, the discharge plug valve 3.7 is used for controlling the opening and closing of the discharge end, a discharge pressure sensor 3.6 is arranged on the liquid outlet pipe 3.5 and is used for detecting the pressure of the discharge flow, and the liquid outlet pipe 3.5 is communicated with a liquid guide pipe 6 through the discharge plug valve 3.7, and the liquid guide pipe 6 is connected with the liquid inlet of a liquid lifting device 7.
[0028] The discharge pressure sensor 3.6 is electrically connected with an alarm through a control circuit, and the discharge plug valve 3.7 is a hydraulic plug valve.
[0029] Working principle:
[0030] The filtering device for acid-dissolving slurry provided by the utility model fully stirs and dissolves through double-layer stirring blades, stirring rods and inner wall scrapers in an acid-dissolving reaction kettle, reduces large-particle solid slurry, connects a squirrel-cage type filter at the discharge port of the acid-dissolving reaction kettle, separates solid-liquid of the acid-dissolving slurry, guides the solid slurry to the slag outlet at the oblique rear end of the filter cylinder through the rotating attraction of the filtering fence inner cylinder and the gravity of the solid slurry, guides the separated liquid to the liquid lifting device, then carries out the subsequent process, effectively removes impurities, reduces the waste of rare earth ore raw materials, maximally extracts rare earth elements and improves product yield and quality.
[0031] The above is only a specific application example of the utility model, and does not constitute any limitation on the protection scope of the utility model. Any technical scheme formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.
Claims
1. A filtration device for acid-soluble liquid residue, characterized in that: It includes an acid dissolution reactor (1), a filter device (3) and a liquid pump (7) connected in sequence; the acid dissolution reactor (1) includes a reactor body (1.1), and a discharge port (1.9) is provided at the bottom of the reactor body (1.1), and the discharge port (1.9) is connected to the filter device (3) through a feed pipe (2). The filter device (3) includes an inclined cylindrical body (3.1), the front end of which is higher than the rear end of which is mounted on a support base (3.8). The front and rear ends of the support base (3.8) are supported by support columns. The front end of the cylindrical body (3.1) is provided with a feed inlet, which is connected to the guide pipe (2) via a feed pipe (3.2). The rear end of the cylindrical body (3.1) is provided with a slag outlet, which is connected to one end of the slag guide pipe (4). The other end of the slag guide pipe (4) is connected to the slag collection tank (5). The cylindrical body (3.1) contains a filter grid inner cylinder (3.3), which is connected to a rotary motor (3.4). The rotary motor (3.4) is mounted on the outer wall of the cylindrical body (3.1). The cylinder (3.1) is also provided with a liquid outlet, which is located in the lower middle part of the inner cylinder (3.3) of the filter grid. The liquid outlet is connected to the liquid outlet pipe (3.5), which is connected to the liquid guide pipe (6). The liquid guide pipe (6) is connected to the liquid inlet of the liquid pump (7).
2. The filtration device for acid-soluble liquid residue according to claim 1, characterized in that: The top center of the vessel body (1.1) is provided with a drive motor (1.3), which is connected to a stirring shaft (1.2). The stirring shaft (1.2) is set on the internal central shaft of the vessel body (1.1). The right side of the middle part of the stirring shaft (1.2) is provided with an upper stirring rod (1.4), and the left side is provided with an upper stirring blade (1.5). The upper stirring rod (1.4) is inclined downward, and the upper stirring blade (1.5) is inclined upward. The upper stirring rod (1.4) and the upper stirring blade (1.5) are located on the same axis.
3. The filtration device for acid-soluble liquid residue according to claim 2, characterized in that: The bottom left side of the stirring shaft (1.2) is provided with a lower stirring rod (1.6) and the right side is provided with a lower stirring blade (1.7). The lower stirring rod (1.6) is inclined downward and the lower stirring blade (1.7) is inclined upward. The lower stirring rod (1.6) and the lower stirring blade (1.7) are located on the same axis.
4. The filtration device for acid-soluble liquid residue according to claim 1, characterized in that: The inner wall of the vessel body (1.1) is provided with multiple sets of parallel scrapers (1.8).
5. The filtration device for acid-soluble liquid slag according to claim 1, characterized in that: The filter device (3) is provided with a discharge gate valve (3.7) between the liquid outlet pipe (3.5) and the liquid guide pipe (6) to control the opening and closing of the discharge end.
6. The filtration device for acid-soluble liquid sludge according to claim 1, characterized in that: The filter device (3) is equipped with a discharge pressure sensor (3.6) on the discharge pipe (3.5) to detect the pressure of the discharge material flow.