Leakage-free side-entering type stirring device for carbonizer
By installing a leak-free side-in-type stirring device outside the carbonization tower, the problems of high over-in-type stirring cost and high maintenance frequency are solved, and the effect of efficient carbonization reaction and reducing production costs is achieved.
Patent Information
- Application Number
- CN202422328298.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The overhead stirring device of existing carbonization towers is costly, difficult to manufacture, and high maintenance frequency. The carbonization reaction is uneven, which affects product quality.
A leak-free side-entry stirring device is adopted, including a tank body divided into pre-carbonization tank, a carbonization tank and a post-carbonization tank. Multiple stirring devices are installed on the outside, and the stirring shaft is driven by a motor to rotate. A magnetic coupler is used to seal it to reduce leakage and improve the gas-liquid contact area and absorption rate.
It achieves energy saving and consumption reduction, good gas dispersion effect, short reaction time, improves carbon dioxide absorption rate, reduces production costs, and reduces equipment wear. It is suitable for toxic gas environments.
Smart Images
Figure CN223069525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbonating tower stirring, in particular to a leak-free side-in type stirring device for a carbonating tower. Background Technique
[0002] The carbonation reaction is a complex "gas-liquid-solid" three-phase reaction. At present, there are generally two methods in tower carbonation reaction. One is the intermittent bubbling carbonation method. In this method, the purified calcium hydroxide emulsion is cooled to below 25°C, pumped into the carbonating tower and maintained at a certain liquid level, and the kiln gas containing carbon dioxide is bubbled at the bottom of the tower for carbonation reaction. However, this method has high energy consumption, and since the calcium hydroxide emulsion and carbon dioxide do not contact sufficiently, the reaction is not uniform, and the heat released during the carbonation reaction will affect the reaction efficiency, resulting in a wide particle size distribution of calcium carbonate and affecting the product quality, which can no longer meet the needs of customers. The other is the top-in type stirring intermittent carbonation. In this method, the calcium hydroxide emulsion below 25°C is pumped into the carbonation reaction tank, and carbon dioxide is introduced, and the carbonation reaction is carried out under stirring. The advantages of this method are that the stirring increases the gas-liquid contact area, the reaction is more uniform, and the product particle size distribution is narrower, etc. However, due to the large height-diameter ratio and high rotation speed of the carbonating tower, the top-in type stirring has high cost, great manufacturing difficulty and high maintenance frequency during use. Content of the Utility Model
[0003] The purpose of the utility model is to provide a leak-free side-in type stirring device for a carbonating tower, and solve the problems that due to the large height-diameter ratio and high rotation speed of the carbonating tower, the top-in type stirring has high cost, great manufacturing difficulty and high maintenance frequency during use.
[0004] To achieve the above purpose, a leak-free side-in type stirring device for a carbonating tower is provided, including: a tank body, the tank body is divided into a pre-carbonation tank, a carbonation tank and a post-carbonation tank, and a plurality of stirring devices are installed on the outer sides of the pre-carbonation tank, the carbonation tank and the post-carbonation tank in sequence from top to bottom. The stirring device is composed of a motor, an overflow port, a rotary joint, an inner magnetic steel, an outer magnetic steel, a flange, an isolation cover, a silicon carbide bushing, a seal, a stirring shaft, a stirrer, a protective shell and an installation shell. Installing the stirring device on the outer side of the tank body by separating the upper, lower and circumferential directions can make the gas dispersion effect good, the reaction time short, and improve the carbon dioxide absorption rate.
[0005] According to the leak-free side-in type stirring device for a carbonating tower, a flange is installed between the installation shell and the protective shell, and the outer side of the installation shell is fixedly connected to the outer side of the tank body.
[0006] According to the leak-free side-in type stirring device for a carbonating tower, the installation shell protects the silicon carbide bushing, the seal, the stirring shaft and the stirrer.
[0007] According to the non-leakage side-entry stirring device for a carbonating tower described above, the protective shell protects the inner magnetic steel, outer magnetic steel, flange and isolation cover.
[0008] According to the non-leakage side-entry stirring device for a carbonating tower described above, overflow ports are communicated with the side walls of both the pre-carbonating tank and the carbonating tank, and the overflow ports are respectively communicated with the lower ends of the carbonating tank and the post-carbonating tank.
[0009] According to the non-leakage side-entry stirring device for a carbonating tower described above, the stirring shaft adopts a silicon carbide sliding bearing and is internally provided with flushing water.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: by sequentially installing a plurality of stirring devices from top to bottom on the outer side of the tank body, and using a single motor to work independently, the power is smaller than that of a single motor working continuously, energy is saved and consumption is reduced, the gas dispersion effect is good, the reaction time is short, the absorption rate of carbon dioxide is improved, and there is zero leakage of the medium. Especially, it is of great significance in an environment where toxic gases such as hydrogen sulfide are generated during the production process of strontium carbonate and barium carbonate. In addition, the device is designed with a flushing structure, which reduces the wear of the support bearing, improves the utilization rate of the device, and thus reduces the production cost.
[0011] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0012] The present utility model will be further described below in conjunction with the drawings and embodiments;
[0013] Figure 1 It is the overall structure diagram of a non-leakage side-entry stirring device for a carbonating tower of the present utility model;
[0014] Figure 2 It is the cross-sectional view of a non-leakage side-entry stirring device for a carbonating tower of the present utility model.
[0015] In the figure: 1, pre-carbonating tank; 2, carbonating tank; 3, post-carbonating tank; 4, motor; 5, overflow port; 6, adapter; 7, inner magnetic steel; 8, outer magnetic steel; 9, flange; 10, isolation cover; 11, silicon carbide bushing; 12, seal; 13, stirring shaft; 14, stirrer; 15, mounting shell; 16, protective shell. Detailed Embodiments
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0017] Please refer to Figure 1-2 , the embodiments of the present utility model provide a technical solution: a non-leakage side-entry stirring device for a carbonating tower, including: a tank body, which is divided into a pre-carbonation tank 1, a carbonation tank 2, and a post-carbonation tank 3. A plurality of stirring devices are installed on the outer sides of the pre-carbonation tank 1, the carbonation tank 2, and the post-carbonation tank 3 in sequence from top to bottom. The stirring device is composed of a motor 4, an overflow port 5, a rotary joint 6, an inner magnetic steel 7, an outer magnetic steel 8, a flange 9, an isolation cover 10, a silicon carbide bushing 11, a seal 12, a stirring shaft 13, a stirrer 14, a protective shell 16, and an installation shell 15. This stirring device is installed in a horizontal side-entry manner. Usually, 2-3 sets are set per tower according to the specific specifications of the carbonating tower, and they are arranged separately in the upper, lower, and circumferential directions.
[0018] A flange 9 is installed between the installation shell 15 and the protective shell 16 for installing the motor 4. The outer side of the installation shell 15 is fixedly connected to the outer side of the tank body. The installation shell 15 protects the silicon carbide bushing 11, the seal 12, the stirring shaft 13, and the stirrer 14. The protective shell 16 protects the inner magnetic steel 7, the outer magnetic steel 8, the flange 9, and the isolation cover 10. The side walls of the pre-carbonation tank 1 and the carbonation tank 2 are both communicated with an overflow port 5 to facilitate gas flow. The overflow port 5 is respectively communicated with the lower ends of the carbonation tank 2 and the post-carbonation tank 3. The stirring shaft 13 uses a silicon carbide sliding bearing and has flushing water inside, which can automatically clean the stirring shaft 13 and reduce the influence of calcium carbide particles on the stirring shaft 13.
[0019] Working principle: When in use, a plurality of stirring devices are installed at intervals from top to bottom in sequence. The motor 4 is cooperated with the rotary joint 6 to drive the stirring shaft 13 to rotate. The stirring shaft 13 drives the stirrer 14 to rotate, so that the stirrer 14 rotates inside the pre-carbonation tank 1, the carbonation tank 2, and the post-carbonation tank 3. Moreover, this stirring device uses a magnetic coupling seal, which can ensure zero leakage and ensure the service life of the bearing is 2-3 years. A carbon dioxide vent is arranged on the left side in front of the stirring blade, which can quickly and evenly disperse the carbon dioxide gas, increase the gas-liquid contact area, shorten the reaction time, and improve the gas dissolution rate. It has a better use effect than the top-entry stirring, although it has a higher cost, greater manufacturing difficulty, and higher maintenance frequency during use.
[0020] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.
Claims
1. A leak-free side-entry stirring device for a carbonating tower, comprising: Tank body, characterized in that the tank body is divided into a pre-carbonization tank (1), a carbonization tank (2) and a post-carbonization tank (3), and a plurality of stirring devices are sequentially installed on the outer sides of the pre-carbonization tank (1), the carbonization tank (2) and the post-carbonization tank (3) from top to bottom. The stirring device is composed of a motor (4), an overflow port (5), a swivel joint (6), an inner magnetic steel (7), an outer magnetic steel (8), a flange (9), a shielding cover (10), a silicon carbide bushing (11), a seal (12), a stirring shaft (13), a stirrer (14), a protective shell (16) and a mounting shell (15).
2. The non-leakage side-entry stirring device for a carbonating tower according to claim 1, wherein: A flange (9) is installed between the mounting shell (15) and the protective shell (16), and the outer side of the mounting shell (15) is fixedly connected to the outer side of the tank body.
3. The leak-free side-entry stirring device for a carbonating tower according to claim 1, characterized in that: The mounting shell (15) protects the silicon carbide bushing (11), the seal (12), the stirring shaft (13) and the stirrer (14).
4. The leak-free side-in type stirring device for a carbonating tower according to claim 1, wherein: The protective shell (16) protects the inner magnetic steel (7), the outer magnetic steel (8), the flange (9) and the shielding cover (10).
5. The non-leakage side-in type stirring device for a carbonating tower according to claim 1, wherein: Overflow ports (5) are communicated with the side walls of both the pre-carbonization tank (1) and the carbonization tank (2), and the overflow ports (5) are respectively communicated with the lower ends of the carbonization tank (2) and the post-carbonization tank (3).
6. The non-leakage side-entry stirring device for a carbonating tower according to claim 1, characterized in that: The stirring shaft (13) adopts a silicon carbide sliding bearing and is internally provided with flushing water.