Novel oxidation leaching reaction kettle
By introducing a liquid circulation mechanism and a stirring device into the oxidative leaching reactor, the problems of low hydrogen peroxide utilization and safety hazards were solved, and a highly efficient oxidative leaching process was achieved.
Patent Information
- Application Number
- CN202520061261.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-10
AI Technical Summary
In existing technologies, hydrogen peroxide has low utilization rate and slow reaction rate during the oxidation leaching process, and direct insertion into the bottom of the reactor poses a safety hazard.
A novel oxidative leaching reactor is designed, employing a liquid circulation mechanism and a stirring device. Hydrogen peroxide is directly pumped into the bottom of the reactor via a circulation pump, and combined with gas introduction and stirring, to ensure the safe and efficient utilization of hydrogen peroxide.
It improves the utilization rate of hydrogen peroxide, increases the reaction rate, avoids the safety hazard of materials backflowing into the hydrogen peroxide container, and shortens the production cycle.
Smart Images
Figure CN223788513U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a supporting technical field especially relates to a novel oxidation leaching reaction kettle. BACKGROUND
[0002] When leaching some materials that need oxidation leaching, oxygen or compressed air and hydrogen peroxide are often needed to be blown in, but the bubbles generated in the reaction process of many materials are difficult to break and eliminate in time, and the bubbles are mixed with the materials, in the process of adding hydrogen peroxide, the hydrogen peroxide directly drips down from the top and is easily decomposed by the materials mixed on the surface of the bubbles, which leads to low utilization rate of hydrogen peroxide and reduces the reaction rate and prolongs the production cycle, if the hydrogen peroxide pipe is directly inserted into the bottom of the reaction kettle, because the hydrogen peroxide reaction decomposition is relatively intense, the materials are easily backflushed to the hydrogen peroxide container along the pipeline with the bubbles, which forms great safety hidden danger.
[0003] Therefore, the utility model discloses a novel oxidation leaching reaction kettle according to the above problems. SUMMARY
[0004] The utility model discloses a novel oxidation leaching reaction kettle according to the above problems.
[0005] Therefore, the utility model discloses a novel oxidation leaching reaction kettle according to the above problems, including the casing, the upper portion of casing is equipped with the feed inlet, is installed with the sealing cover on the feed inlet, the upper portion of casing is connected with the water pipe, is installed with the liquid circulating mechanism on the casing, the liquid circulating mechanism includes the circulating pipe, and the circulating pipe one end is from top to bottom and is inserted with the bottom of casing, and the other end of circulating pipe is connected with circulating pump, and the one end of circulating pump is connected in the inside of casing.
[0006] Preferably, the circulating pipe one side is provided with the hydrogen peroxide adding port.
[0007] Preferably, the upper portion of casing is connected with the steam pipe.
[0008] Preferably, the upper portion of casing is connected with the sulfuric acid pipe.
[0009] Preferably, the upper portion of casing is connected with the compressed air pipe, and the lower end of compressed air pipe is connected with the coil pipe, and the coil pipe is inserted into the bottom of casing, and a plurality of air holes are formed on the surface of coil pipe.
[0010] Preferably, the upper portion of casing is connected with the existing acid mist absorption pipe.
[0011] Preferably, a support is mounted on the upper part of the shell, a motor is mounted on the upper part of the support, an output shaft of the motor is fixedly connected with a stirring rod, the stirring rod is rotatably installed in the shell, blades are arranged on the outer side of the stirring rod, a plurality of tripods are arranged on the inner wall surface of the shell, and a baffle is welded on one side of the tripod in a longitudinal manner.
[0012] Beneficial effects:
[0013] In view of the nature that air oxygen needs to be blown and hydrogen peroxide needs to be added in the process of oxidation leaching, a valve of a hydrogen peroxide adding port on the circulating pipe is opened, a negative pressure state is formed at the hydrogen peroxide adding port by the circulating pump, the hydrogen peroxide is directly pumped into the bottom of the reaction kettle after being added, the hydrogen peroxide can be directly added to the bottom of the material in the leaching process, and on one hand, air is blown in through the compressed air pipe 5, and the oxygen in the air is used for oxidation to reduce the consumption of other oxidants; on the other hand, the hydrogen peroxide can be safely and efficiently blown into the bottom of the material to improve the utilization rate of the hydrogen peroxide. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a whole structure schematic view of the utility model;
[0015] Fig. 2 It is a shell structure sectional view schematic view of the utility model;
[0016] Figs. 1-2 The reference signs are as follows: shell 1, feed inlet 101, support 102, baffle 103, tripod 104, motor 2, stirring rod 201, blade 202, circulating pipe 3, circulating pump 301, hydrogen peroxide adding port 302, sulfuric acid pipe 4, compressed air pipe 5, acid mist absorption pipe 6, steam pipe 7 and tap water pipe 8. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0018] Reference Figs. 1-2 A novel oxidation leaching reaction kettle, comprising a shell 1, a feed inlet 101 is formed in the upper part of the shell 1, a sealing cover is mounted on the feed inlet 101, a tap water pipe 8 is communicated with the upper part of the shell 1, a liquid circulating mechanism is mounted on the shell 1, the liquid circulating mechanism comprises a circulating pipe 3, one end of the circulating pipe 3 extends into the bottom of the shell 1 from top to bottom, the other end of the circulating pipe 3 is connected with a circulating pump 301, and one end of the circulating pump 301 is connected to the inside of the shell 1.
[0019] Preferably, a hydrogen peroxide adding port 302 is arranged on one side of the circulating pipe 3 in a slanting manner, a negative pressure state is formed at the hydrogen peroxide adding port 302 by the circulating pump 3, and the hydrogen peroxide is directly pumped into the bottom of the shell 1 of the reaction kettle after being added.
[0020] Preferably, the upper part of the shell 1 is connected with a steam pipe 7, and a steam heating pipe is installed in the steam pipe 7, which is beneficial to the temperature rise of the material.
[0021] Preferably, the upper part of the shell 1 is connected with a sulfuric acid pipe 4, and the sulfuric acid pipe 4 and a tap water pipe 8 are installed, which is convenient for adding acid and water.
[0022] Preferably, the upper part of the shell 1 is connected with a compressed air pipe 5, and the lower end of the compressed air pipe 5 is connected with a coil pipe, the coil pipe extends into the bottom of the shell 1, and the bottom of the coil pipe can be annular, a plurality of air holes are formed on the surface of the coil pipe, oxygen or air is introduced into the compressed air pipe 5 by using an oxygen cylinder or an air compressor, and then the oxygen or air is delivered to the coil pipe at the bottom of the shell 1, and then released from the coil pipe, so as to fully utilize the oxygen in the oxygen or compressed air.
[0023] Preferably, the upper part of the shell 1 is connected with an existing acid mist absorption pipe 6, and the acid mist absorption pipe 6 is connected with an existing acid mist absorption system, so that the installation of the acid mist absorption pipe 6 can form a negative pressure in the reaction kettle to avoid the overflow of harmful gas.
[0024] Preferably, a support 102 is installed on the upper part of the shell 1, a motor 2 is installed on the upper part of the support 102, an output shaft of the motor 2 is fixedly connected with a stirring rod 201, the stirring rod 201 is rotatably installed in the shell 1, blades 202 are further arranged on the outer side of the stirring rod 201, a plurality of tripods 104 are arranged on the inner wall surface of the shell 1, and a baffle 103 arranged in a longitudinal direction is welded on one side of each of the tripods 104, so that the installation of the stirring rod 201 can make the reaction material more uniform, and the installation of the baffle 103 on the inner wall can make the stirring of the material more uniform and facilitate the breaking of the blocky material.
[0025] Working principle: open the tap water valve 8 or other bottom water valve and pump, and pour 10 cubic meters of bottom water (recycled water or tap water) into the tank; then start the motor 2 to drive the stirring rod to rotate and open the stirring, so that the reaction material is more uniform; open the acid mist absorption pipe 6 in the acid mist absorption system by opening the exhaust pipe valve; open the feeding port 101 to put in the raw materials; open the sulfuric acid pipe 4 to add acid to the required concentration; open the steam pipe 7 to heat to the required temperature; open the air compressor to blow air or oxygen from the compressed air pipe 5; open the reaction kettle circulating pump 301, open the hydrogen peroxide adding port 302 valve on the circulating pipe 301, and use the circulating pump to form a negative pressure state at the hydrogen peroxide adding port, so that the hydrogen peroxide is directly pumped into the bottom of the reaction kettle after being added, and the pump is used to pump the hydrogen peroxide at the required speed, at this time, the material liquid in the circulating pipe is always kept circulating while the hydrogen peroxide is brought into the bottom of the reaction kettle, which can not only introduce gas but also safely add hydrogen peroxide directly into the bottom of the material during the leaching process.
[0026] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A novel oxidation leaching reaction kettle, comprising a shell (1), a feed inlet (101) is formed in the upper part of the shell (1), a sealing cover is installed on the feed inlet (101), and a tap water pipe (8) is communicated with the upper part of the shell (1), characterized in that: The shell (1) is provided with a liquid circulating mechanism, which comprises a circulating pipe (3), one end of the circulating pipe (3) extends into the bottom of the shell (1) from top to bottom, and the other end of the circulating pipe (3) is connected with a circulating pump (301), and one end of the circulating pump (301) is connected to the inside of the shell (1).
2. The novel oxidative leaching reactor according to claim 1, characterized in that, The circulating pipe (3) is provided with a hydrogen peroxide inlet (302) on one side.
3. The novel oxidative leaching reactor according to claim 2, characterized in that, The upper part of the shell (1) is communicated with a steam pipe (7).
4. The novel oxidative leaching reactor according to claim 2, characterized in that, The upper part of the shell (1) is communicated with a sulfuric acid pipe (4).
5. The novel oxidative leaching reactor according to claim 2, characterized in that, The upper part of the shell (1) is communicated with a compressed air pipe (5), the lower end of the compressed air pipe (5) is communicated with a coil pipe, the coil pipe extends into the bottom of the shell (1), and a plurality of air holes are formed in the surface of the coil pipe.
6. The novel oxidative leaching reactor according to claim 2, characterized in that, The upper part of the shell (1) is communicated with an existing acid mist absorption pipe (6).
7. The novel oxidative leaching reactor according to claim 2, characterized in that, The upper part of the shell (1) is provided with a support (102), the upper part of the support (102) is provided with a motor (2), the output shaft of the motor (2) is fixedly connected with a stirring rod (201), the stirring rod (201) is rotatably installed in the shell (1), and the outer side of the stirring rod (201) is further provided with a blade (202).
8. The novel oxidative leaching reactor according to claim 7, characterized in that, The inner wall surface of the shell (1) is provided with a plurality of tripods (104), and the one side of the tripod (104) is welded with a longitudinally arranged baffle (103).