Constant-pressure oxidation leaching device for recycling arsenic sulfide slag

Abstract

The utility model discloses a constant-pressure oxidation leaching device for recycling arsenic sulfide slag. The constant-pressure oxidation leaching device comprises a base plate, the upper end of the base plate is fixedly connected with a mainframe box, the upper end of the mainframe box is fixedly connected with a collecting tank, the upper end of the collecting tank is fixedly connected with a filter, and the upper end of the filter is fixedly connected with a reaction kettle; the lower end of the mounting frame is fixedly connected with the upper end of the mainframe box, a heater is fixedly connected in the mounting frame, and the heater is fixedly connected with the reaction kettle through a heat conduction pipe. The hydraulic machine, the pressurizing cylinder, the hydraulic rod, the pressurizing plate and the pressure guide pipe form a pressurizing mechanism, so that the reaction process in the reaction kettle can be pressurized to improve the reaction rate, and the efficiency of the device is improved; the device is stable and firm in structure, simple and efficient in process and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste slag recovery, in particular to a constant pressure oxidation leaching device for recovering arsenic sulfide slag. Background Art

[0002] When the existing constant pressure oxidation leaching device for recovering arsenic sulfide slag recovers arsenic sulfide slag, the oxidation reaction of the recovery process is slow, which consumes a lot of time and is not conducive to the rapid recovery of arsenic sulfide slag. A Chinese patent discloses a "device for recovering elemental arsenic in arsenic sulfide slag", and its application number is "CN202023126529.8", which includes a reaction box, a servo motor is arranged above the reaction box, the output end of the servo motor is fixedly connected to the outer wall of the first stirring shaft, the outer wall of the top of the first stirring shaft is fixedly installed with a first bevel gear, the first bevel gear is meshed with the second bevel gear, the bottom end of the first stirring shaft passes through the top of the reaction box and extends to the inside of the reaction box, the outer wall of the first stirring shaft is fixedly installed with a stirring blade 1, and the outer wall of the first stirring shaft is fixedly installed with a third bevel gear. The recovery device of elemental arsenic in arsenic sulfide slag can make the first stirring shaft drive the third bevel gear to rotate by starting the servo motor, so that the fourth bevel gear and the fifth bevel gear rotate in the opposite direction, so that the second stirring shaft and the third stirring shaft can rotate in the opposite direction, and the arsenic sulfide slag can be fully mixed with the reaction solution. However, the oxidation reaction during the recovery process of the device is slow and the efficiency of the device is not high. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a constant-pressure oxidation leaching device for recovering arsenic sulfide slag. A pressurizing mechanism is composed of a hydraulic press, a pressurizing cylinder, a hydraulic rod, a pressurizing plate and a pressure-conducting pipe, which can pressurize the reaction process in the reactor to increase the reaction rate, thereby improving the efficiency of the device; the device has a stable and firm structure, a simple and efficient process, and is easy to operate.

[0004] The utility model also provides a constant-pressure oxidation leaching device for recovering arsenic sulfide slag, comprising: a base plate, the upper end of the base plate is fixedly connected to a main box, the upper end of the main box is fixedly connected to a collecting tank, the upper end of the collecting tank is fixedly connected to a filter, and the upper end of the filter is fixedly connected to a reactor; a mounting frame, the lower end of the mounting frame is fixedly connected to the upper end of the main box, a heater is fixedly connected inside the mounting frame, and the heater is fixedly connected to the reactor through a heat conducting pipe; a hydraulic press, the lower end of the hydraulic press is fixedly connected to the upper end of the mounting frame, the upper end of the hydraulic press is fixedly connected to a pressure cylinder, the hydraulic press is fixedly connected to a pressure plate through a hydraulic rod, the pressure plate is located inside the pressure cylinder, and the pressure cylinder is fixedly connected to the reactor through a pressure conducting pipe.

[0005] According to the constant pressure oxidation leaching device for recovering arsenic sulfide slag described in the utility model, the lower end of the base plate is fixedly connected with a roller to improve the flexibility of the device. The roller is located at the four corners of the lower end of the base plate to balance the device.

[0006] According to the constant pressure oxidation leaching device for recovering arsenic sulfide slag described in the utility model, the upper end of the base plate is fixedly connected with a storage tank, which is convenient for material storage. The upper end of the storage tank is rotatably connected with a tank cover through a rotating shaft, which is conducive to sealing.

[0007] According to the constant pressure oxidation leaching device for recovering arsenic sulfide slag described in the utility model, the side end of the main box is fixedly connected with a mounting plate by bolts, which is convenient for fixing the handle. The front end of the mounting plate is fixedly connected with a handle to improve the convenience of using the device.

[0008] According to the constant pressure oxidation leaching device for recovering arsenic sulfide slag described in the utility model, an oxygen tank is fixedly connected to the upper end of the main box to facilitate the rapid supply of oxygen. The side end of the oxygen tank abuts against the rear end of the storage tank, making the structure compact.

[0009] According to the constant pressure oxidation leaching device for recovering arsenic sulfide slag described in the utility model, an air pump is fixedly connected to the upper end of the main box, which is conducive to the rapid transportation of oxygen. The input end of the air pump is fixedly connected to the oxygen tank through the first conduit, which is convenient for the transportation of oxygen. The output end of the air pump is fixedly connected to the reactor through the second conduit, which is convenient for the transportation of oxygen.

[0010] According to the constant pressure oxidation leaching device for recovering arsenic sulfide slag described in the utility model, the side end of the mounting frame abuts against the side end of the collecting tank, making the structure compact.

[0011] Beneficial Effects

[0012] 1. Compared with the prior art, the constant pressure oxidation leaching device for recovering arsenic sulfide slag can pressurize the reaction process in the reactor to increase the reaction rate by forming a pressure mechanism through a hydraulic press, a pressure cylinder, a hydraulic rod, a pressure plate and a pressure pipe, thereby improving the efficiency of the device;

[0013] 2. Compared with the prior art, the constant pressure oxidation leaching device for recovering arsenic sulfide slag has a stable and firm structure, a simple and efficient process, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the structure of a constant pressure oxidation leaching device for recovering arsenic sulfide slag according to the utility model;

[0016] Figure 2 It is a top view structural schematic diagram of a constant pressure oxidation leaching device for recovering arsenic sulfide slag according to the utility model;

[0017] Figure 3 It is a schematic diagram of the longitudinal cross-sectional structure of a constant pressure oxidation leaching device for recovering arsenic sulfide slag according to the utility model;

[0018] Figure 4 It is a schematic diagram of the transverse cross-sectional structure of a constant pressure oxidation leaching device for recovering arsenic sulfide slag according to the utility model.

[0019] Legend:

[0020] 1. Base plate; 2. Roller; 3. Mounting frame; 4. Filter; 5. Heater; 6. Hydraulic press; 7. Hydraulic rod; 8. Pressure plate; 9. Pressure cylinder; 10. Pressure pipe; 11. Heat pipe; 12. Reactor; 13. Second conduit; 14. Air pump; 15. Tank cover; 16. Rotating shaft; 17. Storage tank; 18. First conduit; 19. Oxygen tank; 20. Main chassis; 21. Mounting plate; 22. Handle; 23. Bolt; 24. Collection tank. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4The utility model embodiment is a constant pressure oxidation leaching device for recovering arsenic sulfide slag, which includes: a base plate 1, the lower end of the base plate 1 is fixedly connected to a roller 2 for movement, the roller 2 is located at the four corners of the lower end of the base plate 1 for balancing, the upper end of the base plate 1 is fixedly connected to a storage tank 17 for storing arsenic sulfide slag, the upper end of the storage tank 17 is rotatably connected to a tank cover 15 through a rotating shaft 16 for sealing, the upper end of the base plate 1 is fixedly connected to a main box 20 for installing a collection tank, an oxygen tank and a mounting frame, the side end of the main box 20 is fixedly connected to a mounting plate 21 through a bolt 23 to fix a handle, the front end of the mounting plate 21 is fixedly connected to a handle 22, a moving device, and the upper end of the main box 20 is fixedly connected There is a collecting tank 24 for collecting the extracted arsenic. The upper end of the collecting tank 24 is fixedly connected with a filter 4 for separating the oxidized arsenate from the solution. The upper end of the filter 4 is fixedly connected with a reactor 12 for performing an oxidation reaction. The upper end of the main box 20 is fixedly connected with an oxygen tank 19 for providing oxygen for the reaction. The side end of the oxygen tank 19 abuts against the rear end of the storage tank 17 to form a compact structure. The upper end of the main box 20 is fixedly connected with an air pump 14 for transporting oxygen. The input end of the air pump 14 is fixedly connected with the oxygen tank 19 through a first conduit 18 to form an oxygen transport structure. The output end of the air pump 14 is fixedly connected with the reactor 12 through a second conduit 13 to form an oxygen transport structure.

[0023] The mounting frame 3, the lower end of the mounting frame 3 is fixedly connected to the upper end of the main box 20, the mounting frame 3 is fixedly connected with a heater 5, which heats the reactor to maintain the high temperature required for the reaction, the side end of the mounting frame 3 abuts against the side end of the collecting tank 24 to form a compact structure, and the heater 5 is fixedly connected to the reactor 12 through a heat pipe 11 to form a heat conduction structure;

[0024] The hydraulic press 6 has its lower end fixedly connected to the upper end of the mounting frame 3 to form a mounting structure of the hydraulic press. The upper end of the hydraulic press 6 is fixedly connected to a pressurizing cylinder 9 to form a pressurized space. The hydraulic press 6 is fixedly connected to a pressurizing plate 8 through a hydraulic rod 7 to squeeze air to increase the pressure in the reactor. The pressurizing plate 8 is located inside the pressurizing cylinder 9 to form a pressurized layout. The pressurizing cylinder 9 is fixedly connected to the reactor 12 through a pressure pipe 10 to form a gas pressure conduction structure.

[0025] Working principle: Arsenic in arsenic sulfide slag is recovered by using a constant pressure oxidation leaching device. Arsenic sulfide slag is added into the reactor 12. The heater 5 conducts heat to the reactor 12 through the heat pipe 11 to maintain the high temperature required for the reaction. The hydraulic press 6 presses the pressure plate 8 through the hydraulic rod 7 to squeeze the air in the pressure cylinder 9. The pressure cylinder 9 increases the air pressure in the reactor 12 through the pressure pipe 10. The movement of the pressure plate 8 controls the air pressure in the reactor 12 to remain constant. The oxygen in the oxygen tank 19 is transported to the reactor 12 through the first conduit 18, the air pump 14 and the second conduit 13. The arsenic sulfide slag will undergo a rapid oxidation reaction in the reactor 12 to obtain a mixture of arsenic and arsenate. The oxidized arsenate is separated through the filter 4 to obtain pure arsenic. The collection tank 24 will collect the arsenic to complete the recovery of arsenic.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A constant pressure oxidation leaching device for recovering arsenic sulfide slag, characterized in that: include: A base plate (1), the upper end of the base plate (1) is fixedly connected to a main box (20), the upper end of the main box (20) is fixedly connected to a collection tank (24), the upper end of the collection tank (24) is fixedly connected to a filter (4), and the upper end of the filter (4) is fixedly connected to a reaction kettle (12); A mounting frame (3), the lower end of the mounting frame (3) being fixedly connected to the upper end of the main chassis (20), a heater (5) being fixedly connected inside the mounting frame (3), and the heater (5) being fixedly connected to the reaction kettle (12) via a heat conducting pipe (11); A hydraulic press (6), wherein the lower end of the hydraulic press (6) is fixedly connected to the upper end of the mounting frame (3), the upper end of the hydraulic press (6) is fixedly connected to a pressure cylinder (9), the hydraulic press (6) is fixedly connected to a pressure plate (8) via a hydraulic rod (7), the pressure plate (8) is located inside the pressure cylinder (9), and the pressure cylinder (9) is fixedly connected to a reaction kettle (12) via a pressure pipe (10).

2. A constant pressure oxidation leaching device for recovering arsenic sulfide slag according to claim 1, characterized in that: The lower end of the base plate (1) is fixedly connected to a roller (2), and the roller (2) is located at the four corners of the lower end of the base plate (1).

3. A constant pressure oxidation leaching device for recovering arsenic sulfide slag according to claim 1, characterized in that: The upper end of the base plate (1) is fixedly connected to a storage tank (17), and the upper end of the storage tank (17) is rotatably connected to a tank cover (15) via a rotating shaft (16).

4. A constant pressure oxidation leaching device for recovering arsenic sulfide slag according to claim 1, characterized in that: The side end of the main box (20) is fixedly connected to a mounting plate (21) via bolts (23), and the front end of the mounting plate (21) is fixedly connected to a handle (22).

5. A constant pressure oxidation leaching device for recovering arsenic sulfide slag according to claim 1, characterized in that: The upper end of the main housing (20) is fixedly connected to an oxygen tank (19), and the side end of the oxygen tank (19) is in contact with the rear end of the storage tank (17).

6. A constant pressure oxidation leaching device for recovering arsenic sulfide slag according to claim 1, characterized in that: An air pump (14) is fixedly connected to the upper end of the main box (20); an input end of the air pump (14) is fixedly connected to an oxygen tank (19) via a first conduit (18); and an output end of the air pump (14) is fixedly connected to a reactor (12) via a second conduit (13).

7. A constant pressure oxidation leaching device for recovering arsenic sulfide slag according to claim 1, characterized in that: The side end of the mounting frame (3) abuts against the side end of the collection tank (24).

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