Wet-process sodium pyrosulfite production device
By designing a wet sodium metabisulfite production device including exhaust components and a stirring device, the problems of high energy consumption and low efficiency of traditional wet production processes are solved, and more efficient reactions and lower production costs are achieved.
Patent Information
- Application Number
- CN202420445199.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The traditional wet sodium metabisulfite production process consumes high energy, increases cost and is inefficient, mainly due to the limited contact area of sulfur dioxide and sodium sulfite solutions, resulting in a long reaction time.
A wet sodium metabisulfite production device is designed, including mixing boxes, metal pipes, exhaust components and cleaning components. By installing auxiliary pipes, exhaust pipes, exhaust holes and gas pipe rotary joints on the metal pipes, the contact area between gas and liquid is increased, and the metal pipes are driven to rotate through the motor to achieve liquid stirring and gas filling, further improving the Reaction efficiency.
By increasing the contact area of sulfur dioxide and sodium sulfite solution, the reaction efficiency is significantly improved, production costs are reduced, and the internal wall of the mixing box is prevented from crystallizing by cleaning the components, which extends the service life of the device.
Smart Images
Figure CN222454574U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sodium pyrosulfite production devices, in particular to a wet-process sodium pyrosulfite production device. Background Art
[0002] Sodium sulfite is a common sulfite, monoclinic crystal or powder, which is irritating to the eyes, skin, and mucous membranes, can pollute water sources, and produce toxic sulfide fumes when decomposed by high heat. Sodium metabisulfite is a white or yellow crystalline powder or small crystals with a strong smell of sulfur dioxide. Sodium metabisulfite is also widely used in industry for biological purposes. It can be used for the purification of chloroform, as a coagulant, deoxidizer, and mordant. It is widely used in pharmaceutical technology, rubber preparation, printing and dyeing industry, leather making, and many chemical production processes. Food-grade sodium metabisulfite can be used as a leavening agent and preservative, and is used in all aspects of life. Traditional sodium metabisulfite production and processing methods use both dry and wet methods.
[0003] In the traditional wet preparation process, a large amount of energy consumption is often required, which greatly increases the production cost. In addition, the traditional solution will result in low production efficiency when preparing sodium metabisulfite. This is because during the reaction, the contact area between sulfur dioxide and sodium sulfite solution is limited, and the traditional solution relies on manual experience to fix the flow rate of sulfur dioxide within an appropriate range, resulting in a long reaction time and low efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a wet process sodium pyrosulfite production device to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solution: a wet-process sodium pyrosulfite production device, comprising a mixing box, a metal pipe is vertically installed in the mixing box, and an exhaust assembly is arranged on the metal pipe, and a cleaning assembly is also arranged on the metal pipe, a sodium sulfite solution inlet is installed on the top of the mixing box, and a discharge port is installed at the bottom of the side wall of the mixing box;
[0006] The exhaust assembly includes an auxiliary pipe, an exhaust pipe, an exhaust hole and an air pipe rotary joint. Multiple auxiliary pipes are installed horizontally on the outer wall of the metal pipe, and multiple exhaust pipes are installed vertically on the outside of each auxiliary pipe. Exhaust holes are provided on the exhaust pipes. An air pipe rotary joint is installed at the bottom of the metal pipe that rotates and passes through the bottom of the mixing box.
[0007] By adopting the above technical solution, the contact area between the liquid and gas in the mixing box is increased to the maximum extent.
[0008] As a further solution of the utility model: a motor is installed on the top of the mixing box, and the output end of the motor passes through the top of the mixing box and is connected to the top of the metal pipe.
[0009] By adopting the above technical solution, the liquid in the mixing box is stirred, and the uniformity of the mixing is further increased.
[0010] As a further solution of the utility model: the cleaning assembly includes a connecting rod and a scraper, the connecting rod is horizontally installed on the side wall of the metal pipe, and the scraper is vertically installed on the end of the connecting rod.
[0011] By adopting the above technical solution, the inner wall of the mixing box can be cleaned.
[0012] As a further solution of the utility model: a one-way valve is installed in the metal pipe.
[0013] By adopting the above technical solution, liquid is prevented from entering the solenoid valve through the metal pipe.
[0014] As a further solution of the utility model: a sulfur dioxide pipeline is transversely installed at the end of the air pipe rotary joint, and a solenoid valve is connected to the sulfur dioxide pipeline.
[0015] By adopting the above technical solution, gas can be added into the metal pipeline through the sulfur dioxide pipeline.
[0016] As a further solution of the utility model: a pressure gauge is installed on the top of the mixing box.
[0017] By adopting the above technical solution, the pressure change in the mixing box can be observed through the pressure gauge.
[0018] Compared with the prior art, the utility model has the following beneficial effects: the wet-process sodium pyrosulfite production device is provided with an auxiliary pipe, an exhaust pipe, an exhaust hole and an air pipe rotary joint, by bringing gas into the air pipe rotary joint, and then injecting the gas into the metal pipe through the air pipe rotary joint, and then injecting the gas into the exhaust hole opened on the exhaust pipe through the metal pipe, and then exhausting the gas into the mixing box through the exhaust hole, and the continuous movement of the auxiliary pipe and the exhaust pipe increases the contact area between sulfur dioxide and sodium sulfite solution, thereby improving efficiency;
[0019] In addition, the wet-process sodium metabisulfite production device is also provided with a connecting rod and a scraper. When the metal pipe rotates, the connecting rod is driven to move, and the scraper is driven by the connecting rod to move in a circular trajectory. The inner wall of the mixing box is cleaned by the scraper to prevent excessive crystallization on the inner wall of the mixing box during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1This is a schematic diagram of the main structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;
[0022] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.
[0023] In the figure: 1. mixing box; 2. motor; 3. pressure gauge; 4. sodium sulfite solution inlet; 5. metal pipe; 6. auxiliary pipe; 7. exhaust pipe; 8. exhaust hole; 9. connecting rod; 10. scraper; 11. one-way valve; 12. solenoid valve; 13. exhaust port; 14. air pipe rotary joint; 15. sulfur dioxide pipeline. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-3 The utility model provides a technical solution: a wet-process sodium pyrosulfite production device, comprising a mixing box 1, a metal pipe 5 is vertically installed in the mixing box 1, and an exhaust assembly is arranged on the metal pipe 5, and a cleaning assembly is also arranged on the metal pipe 5, a sodium sulfite solution inlet 4 is installed on the top of the mixing box 1, and a discharge port 13 is installed at the bottom of the side wall of the mixing box 1;
[0026] The exhaust assembly includes an auxiliary pipe 6, an exhaust pipe 7, an exhaust hole 8 and an air pipe rotary joint 14. A plurality of auxiliary pipes 6 are installed horizontally on the outer wall of the metal pipe 5, and a plurality of exhaust pipes 7 are installed vertically on the outer side of each auxiliary pipe 6. The exhaust pipe 7 is provided with an exhaust hole 8. The bottom of the metal pipe 5 rotates through the bottom of the mixing box 1 and an air pipe rotary joint 14 is installed.
[0027] Specifically, the gas is brought into the air pipe rotary joint 14, and then injected into the metal pipe 5 through the air pipe rotary joint 14, and then the gas can be injected into the exhaust hole 8 opened on the exhaust pipe 7 through the metal pipe 5, and the gas is discharged into the mixing box 1 through the exhaust hole 8. Through the continuous movement of the auxiliary pipe 6 and the exhaust pipe 7, the contact area between sulfur dioxide and sodium sulfite solution is increased, thereby improving the efficiency.
[0028] Furthermore, a motor 2 is installed on the top of the mixing box 1, and the output end of the motor 2 passes through the top of the mixing box 1 and is connected to the top of the metal pipe 5;
[0029] Specifically, the metal pipe 5 is driven to rotate by starting the motor 2. When the sulfur dioxide pipe 15 rotates, the auxiliary pipe 6 and the exhaust pipe 7 are driven to stir the liquid in the mixing box 1. The flowing liquid and gas are mixed, which further increases the reaction speed.
[0030] Furthermore, the cleaning assembly includes a connecting rod 9 and a scraper 10, the connecting rod 9 is horizontally installed on the side wall of the metal pipe 5, and the scraper 10 is vertically installed on the end of the connecting rod 9;
[0031] Specifically, during the rotation of the metal pipe 5, the connecting rod 9 is driven to move, and the connecting rod 9 drives the scraper 10 to move in a circular trajectory. The scraper 10 cleans the inner wall of the mixing box 1 to prevent excessive crystallization on the inner wall of the mixing box 1 during long-term use.
[0032] Furthermore, a one-way valve 11 is installed in the metal pipe 5;
[0033] Specifically, the one-way valve installed near the bottom of the metal pipe 5 can prevent the liquid in the mixing box 1 from entering the sulfur dioxide pipe 15 through the exhaust hole 8.
[0034] Furthermore, a sulfur dioxide pipeline 15 is transversely installed at the end of the air pipe rotary joint 14, and a solenoid valve 12 is connected to the sulfur dioxide pipeline 15;
[0035] Specifically, the amount of gas added into the sulfur dioxide pipeline 15 can be controlled by the solenoid valve 12 .
[0036] Further, a pressure gauge 3 is installed on the top of the mixing box 1;
[0037] Working principle: When using the wet process sodium pyrosulfite production device, liquid is added into the mixing box 1 through the sodium sulfite solution inlet 4, and then injected into the air pipe rotary joint 14 through the high-pressure injection device connected to the solenoid valve 12, and then the gas enters the mixing box 1 through the metal pipe 5. At the same time, the metal pipe 5 is driven to rotate by the starting motor 2. When the sulfur dioxide pipe 15 rotates, the auxiliary pipe 6 and the exhaust pipe 7 are driven to stir the liquid in the mixing box 1. The flowing liquid and gas are mixed, which further increases the reaction speed. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0038] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.
[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A wet process sodium metabisulfite production device, comprising a mixing box (1), characterized in that: A metal pipe (5) is vertically installed in the mixing box (1), and an exhaust assembly is arranged on the metal pipe (5). A cleaning assembly is also arranged on the metal pipe (5). A sodium sulfite solution inlet (4) is installed on the top of the mixing box (1), and a discharge outlet (13) is installed at the bottom of the side wall of the mixing box (1); The exhaust assembly comprises an auxiliary pipe (6), an exhaust pipe (7), an exhaust hole (8) and an air pipe rotary joint (14); a plurality of auxiliary pipes (6) are horizontally installed on the outer wall of the metal pipe (5), and a plurality of exhaust pipes (7) are vertically installed on the outer side of each auxiliary pipe (6); exhaust holes (8) are provided on the exhaust pipes (7); and an air pipe rotary joint (14) is installed at the bottom of the metal pipe (5) so as to rotate and penetrate through the bottom of the mixing box (1).
2. A wet process sodium pyrosulfite production device according to claim 1, characterized in that: A motor (2) is installed on the top of the mixing box (1), and the output end of the motor (2) passes through the top of the mixing box (1) and is connected to the top of the metal pipe (5).
3. A wet process sodium pyrosulfite production device according to claim 1, characterized in that: The cleaning assembly comprises a connecting rod (9) and a scraper (10); the connecting rod (9) is laterally mounted on the side wall of the metal pipe (5), and the scraper (10) is vertically mounted on the end of the connecting rod (9).
4. A wet process sodium pyrosulfite production device according to claim 1, characterized in that: A one-way valve (11) is installed in the metal pipe (5).
5. A wet process sodium pyrosulfite production device according to claim 1, characterized in that: A sulfur dioxide pipeline (15) is transversely installed at the end of the air pipe rotary joint (14), and a solenoid valve (12) is connected to the sulfur dioxide pipeline (15).
6. A wet process sodium pyrosulfite production device according to claim 1, characterized in that: A pressure gauge (3) is installed on the top of the mixing box (1).