CN210030837U

CN210030837U - Platinum leaching device is retrieved to useless catalyst

Info

Publication number: CN210030837U
Application number: CN201920677081.7U
Authority: CN
Inventors: 璐＄孩; 贡红
Original assignee: Jiangsu Zhong Ming Type Material Co Ltd
Current assignee: Jiangsu Zhong Ming Type Material Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-02-07
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to a platinum leaching device is retrieved to useless catalyst, including the cauldron body, cauldron body top is equipped with dog-house, gas vent, two at least inlet and motor cabinet, the rotating electrical machines of motor cabinet is connected with the agitator of arranging in the internal portion of cauldron, the agitator includes the (mixing) shaft, turbine stirring rake and impels the stirring rake, turbine stirring rake includes disk body and a plurality of turbine paddle leaf, turbine paddle leaf vertical cross-section is the V-arrangement, and one side is equipped with the notch, impel the stirring rake to be located turbine stirring rake bottom, and include second shaft sleeve and a plurality of propulsion paddle leaf, impel paddle leaf vertical cross-section and be the S-arrangement, cauldron body side top is equipped with the intake pipe, cauldron body bottom is equipped with the discharge port, the external portion of cauldron is equipped with clamp cover, stabilizer; adopt eccentric installation's agitator, the agitator outside adopts turbine stirring rake and impels the stirring rake combination, and the side bottom admits air, guarantees that the middle part shearing force is great, bottom circulation volume is great, strengthens relative motion between the rete, improves the leaching efficiency when useless catalyst retrieves platinum.

Description

Platinum leaching device is retrieved to useless catalyst

Technical Field

The utility model relates to a platinum leaching device is retrieved to useless catalyst belongs to noble metal and retrieves technical field.

Background

Catalysts containing noble metals such as platinum and palladium are widely used in modern industries, and recovery of platinum group metals from spent catalysts has become an important means to mitigate their low inventory and high price. In the prior art, a waste catalyst mainly comprises a carrier and an active substance mass part, for example, a catalyst carrier material in the automobile industry is mostly aluminum oxide or ceramic, and in the catalytic reaction process, platinum group metal particles in the carrier are in a balanced state of internal and external movement, and in the recovery process, if the catalyst can be subjected to leaching pretreatment, beneficial metals are extracted, for example, dilute sulfuric acid is adopted for dissolving, so that the beneficial metals are transferred into a solution, aluminum powder and tellurium dioxide are used for enrichment, replacement and recovery, and then leaching residues are further extracted and recovered, so that the recovery rate of platinum is improved; in the leaching device in the prior art, liquid forms a cylindrical rotary area near the stirrer, so that relative movement between liquid layers is weak, leaching time is long, and precious metal recovery is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a platinum leaching device is retrieved to useless catalyst, adopt eccentric installation's agitator, the agitator outside adopts turbine stirring rake and impels the stirring rake combination, and the side bottom admits air, guarantees that the middle part shearing force is great, the bottom circulation volume is great, strengthens relative motion between the liquid layer, improves the leaching efficiency when useless catalyst retrieves platinum.

The utility model discloses a realize through following technical scheme:

a leaching device for recovering platinum from waste catalyst comprises a kettle body, wherein a feed port, an exhaust port, at least two liquid inlets and a motor base are arranged at the top of the kettle body, the feed port and the motor base are respectively positioned at two sides of the kettle body, a rotating motor is arranged on the motor base, and a stirrer arranged in the kettle body is connected to a motor shaft of the rotating motor;

the stirrer comprises a stirring shaft, a turbine stirring paddle and a propelling stirring paddle, a shaft seat is arranged between the bottom of the stirring shaft and the kettle body, the turbine stirring paddle comprises a disk body and a plurality of turbine blades, a first shaft sleeve is arranged between the disk body and the stirring shaft, the vertical section of each turbine blade is of a V-shaped structure, a notch is arranged on one side of each turbine blade, and the notch is matched with the outer wall of the disk body in shape;

the propulsion stirring paddle is positioned at the bottom of the turbine stirring paddle and comprises a second shaft sleeve and a plurality of propulsion blades, and the vertical sections of the propulsion blades are in S-shaped structures and are uniformly arranged outside the second shaft sleeve at intervals;

the cauldron body side top is equipped with the intake pipe, the intake pipe is Z shape structure, and the tail end arranges cauldron internal bottom in, internal two baffles that are located the intake pipe both sides that are equipped with of cauldron, all be equipped with the fixed plate between baffle and intake pipe and the cauldron body, cauldron body bottom is equipped with the discharge port, and the external portion of cauldron is equipped with and presss from both sides cover, a plurality of stabilizer blades and is located turbine stirring rake and impel the visual window between the stirring rake.

The utility model has the advantages that:

(1) the leaching kettle body enters leaching raw materials from a feeding port and at least two liquid inlets, the feeding port and a motor base which are arranged on two sides are adopted, so that a stirrer is eccentrically arranged, the stirrer and a baffle are assisted to reinforce when the air inlet protection of an air inlet pipe is avoided, suspension is prevented from forming a cylindrical rotary area near the stirrer, the relative movement and turbulence between liquid layers are enhanced, and the leaching speed and efficiency are improved; (2) the stirrer is combined with a turbine stirring paddle and a propelling stirring paddle up and down, so that the material at the bottom of the kettle body is impacted by an S-shaped propelling paddle, the axial circulation amount is large, the material in the middle of the kettle body is impacted by a V-shaped turbine paddle, and the shearing force is large, so that the leaching is accelerated; (3) the jacket is adopted for heat preservation, and the leaching process is observed through a visual window, so that the leaching operation is stably carried out when the platinum is recovered from the waste catalyst.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a perspective view of the stirrer of the present invention.

Fig. 4 is a bottom view of the stirrer of the present invention.

(in the figure, a kettle body 1, a feeding port 2, an exhaust port 3, a liquid inlet 4, a motor base 5, a rotating motor 6, a stirrer 7, a stirring shaft 8, a turbine stirring paddle 9, a propelling stirring paddle 10, a shaft base 11, a disk body 12, a turbine blade 13, a first shaft sleeve 14, a notch 15, an arc angle 16, a positioning bolt 17, a second shaft sleeve 18, a propelling blade 19, an air inlet pipe 20, a baffle 21, a fixing plate 22, an exhaust port 23, a support leg 24, a jacket 25, an inlet and outlet 26, a temperature measuring port 27 and a visual window 28).

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

A leaching device for recovering platinum from a waste catalyst comprises a kettle body 1, wherein the top of the kettle body 1 is provided with a feed port 2, an exhaust port 3, at least two liquid inlets 4 and a motor base 5, the feed port 2 and the motor base 5 are respectively positioned on two sides of the kettle body 1, the motor base 5 is provided with a rotating motor 6, and a motor shaft of the rotating motor 6 is connected with a stirrer 7 arranged in the kettle body 1;

the stirrer 7 comprises a stirring shaft 8, a turbine stirring paddle 9 and a propelling stirring paddle 10, a shaft seat 11 is arranged between the bottom of the stirring shaft 8 and the kettle body 1, the turbine stirring paddle 9 comprises a disk body 12 and a plurality of turbine blades 13, a first shaft sleeve 14 is arranged between the disk body 12 and the stirring shaft 8, the vertical section of each turbine blade 13 is of a V-shaped structure, a notch is arranged on one side of each turbine blade, and the notch is matched with the outer wall of the disk body 12 in shape;

the end part of the turbine blade 13 is provided with an arc angle 16, and two sides of the turbine blade 13 are provided with positioning bolts 17 penetrating through the notch and the disc body 12. The turbine blade 13 is inserted into the edge of the disc body 12 through the notch, the positioning bolt 17 penetrates through the notch and the disc body 12 to realize the installation of the turbine blade 13, the end part adopts an arc angle 16 structure, the end part abrasion and the fluid collision vibration can be reduced, the running stability of the stirrer 7 is ensured, and the first shaft sleeve 14 and the second shaft sleeve 18 are coaxially connected with the stirring shaft 8 through bolts and rotate synchronously.

The propulsion stirring paddle 10 is positioned at the bottom of the turbine stirring paddle 9 and comprises a second shaft sleeve 18 and a plurality of propulsion blades 19, and the vertical sections of the propulsion blades 19 are in S-shaped structures and are uniformly arranged outside the second shaft sleeve 18 at intervals;

the cauldron body 1 side top is equipped with intake pipe 20, intake pipe 20 is Z shape structure, and the tail end arranges cauldron body 1 bottom in, the internal two baffles 21 that are located intake pipe 20 both sides that are equipped with of cauldron, all be equipped with fixed plate 22 between baffle 21 and intake pipe 20 and the cauldron body 1. The air inlet pipe 20 and the stirring shaft 8 are positioned on two sides of the kettle body 1, and the baffle 21 is additionally arranged to prevent fluid from forming columnar rotation in the stirring center, so that the turbulence of the liquid layer part is increased, and the leaching is accelerated.

The bottom of the kettle body 1 is provided with a discharge port 23, and the exterior of the kettle body 1 is provided with a plurality of support legs 24;

the outer part of the kettle body 1 is provided with a jacket 25, and the jacket 25 is provided with a plurality of inlets and outlets 26 and a temperature measuring port 27 communicated with the kettle body 1. The heat preservation liquid is introduced from the inlet and the outlet 26 to fill the jacket 25 to preserve heat of the materials in the kettle body 1, and the temperature measuring probe is arranged from the temperature measuring port 27, so that the temperature can be conveniently monitored, and the stable leaching can be ensured.

And a visible window 28 positioned between the turbine stirring paddle 9 and the propelling stirring paddle 10 is arranged outside the kettle body 1. The use of the viewing window 28 facilitates observation of the progress of the material between the turbine paddle 9 and the impeller paddle 10.

The waste catalyst raw material containing platinum group precious metals is thrown in from a feed inlet 2, the leaching solution is thrown in from a liquid inlet 4, the temperature is preserved by a jacket 25, a motor shaft of a rotating motor 6 drives a stirrer 7 to rotate, and the stirrer 7 is eccentrically arranged to give way for the installation of an air inlet pipe 20 as a motor base 5 and the feed inlet 2 are positioned on two sides of a kettle body 1, so that the shaft base 11 is conveniently installed at the bottom to reduce stirring vibration;

meanwhile, when the eccentric stirrer 7 is used for rotary stirring, the eccentric stirrer 7 is matched with the baffle 21, the fluid can be prevented from flowing in a cylindrical rotary area near the stirrer 7, so that the relative motion and turbulence between liquid layers are enhanced, the turbine stirring paddle 9 and the propelling stirring paddle 10 are combined up and down the stirrer 7, the material at the bottom of the kettle body 1 is impacted by the S-shaped propelling paddle 19, the axial circulation amount is large, the material in the middle of the kettle body 1 is impacted by the V-shaped turbine paddle 13, the shearing force is large, and the leaching speed and the leaching efficiency are improved;

in the process, protective gas can be introduced through the gas inlet pipe 20 and exhausted through the gas outlet 3 to protect leaching operation, the gas flow can increase liquid collision, the replacement raw material is put into the leaching tank from the feeding port 2 for leaching, and finally the leaching residue is discharged from the discharging port 23 after the leaching is finished and is further extracted and recovered.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A leaching device for recovering platinum from a waste catalyst comprises a kettle body and is characterized in that a feed port, an exhaust port, at least two liquid inlets and a motor base are arranged at the top of the kettle body, the feed port and the motor base are respectively positioned on two sides of the kettle body, a rotating motor is arranged on the motor base, and a stirrer arranged in the kettle body is connected to a motor shaft of the rotating motor;

the kettle is characterized in that an air inlet pipe is arranged at the top of the side of the kettle body, the air inlet pipe is of a Z-shaped structure, the tail end of the air inlet pipe is arranged at the bottom of the kettle body, a discharge port is formed in the bottom of the kettle body, and a plurality of support legs are arranged outside the kettle body.

2. The leaching device for recovering platinum from waste catalyst according to claim 1, wherein a jacket is arranged outside the kettle body, and the jacket is provided with a plurality of inlet and outlet ports and a temperature measuring port communicated with the kettle body.

3. The leaching apparatus for recovering platinum from spent catalyst according to claim 1, wherein the end of the turbine blade is provided with a circular arc angle, and positioning bolts are provided at both sides of the turbine blade to pass through the notch and the disk body.

4. The leaching device for recovering platinum from waste catalyst according to claim 1, wherein two baffles positioned at two sides of the air inlet pipe are arranged in the kettle body, and fixing plates are arranged between the baffles and the kettle body as well as between the air inlet pipe and the kettle body.

5. The leaching apparatus for recovering platinum from a spent catalyst according to any one of claims 1 to 4, wherein a viewing window is provided between the turbine paddle and the propelling paddle outside the tank body.