Feeding system of crystallization granulation tower

Abstract

The utility model belongs to the technical field of crystallization granulation catalytic softening fluidized bed equipment, and particularly relates to a feeding system of a crystallization granulation tower. Comprising a container, the top of which is sealed; the water inlet container is connected to the bottom of the container; a pump is arranged on the water inlet pipeline, and the water inlet pipeline is connected to the bottom of the water inlet container; the water outlet pipeline is arranged at the bottom of the container; the rotational flow device is arranged in the container, and the rotational flow device is positioned right above the joint of the water inlet pipeline and the water inlet container. According to the utility model, seed crystal and water can be uniformly mixed during feeding, so that the chemical reaction speed of the crystallization and granulation fluidized bed after feeding is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of crystallization granulation catalytic softening fluidized bed equipment, specifically a feeding system for a crystallization granulation tower. Background Technology

[0002] The operating principle of chemical crystallization granulation fluidized bed softening tower is to add chemical agents to the water, causing Ca2+ in the water to react chemically to generate CaCO3 crystals, which then attach to the surface of the pre-added seed crystals, thereby reducing the hardness of the water.

[0003] In a fluidized bed crystallization tower, a certain proportion of seed crystals are first added to the water. These seed crystals can be high-purity CaCO3 crystals used in industry or natural limestone. Then, an alkaline agent, such as sodium hydroxide or calcium hydroxide, is added to the water to react with the hardness components in the water, generating CaCO3 crystals with low solubility.

[0004] When a reaction is carried out in a fluidized bed crystallization granulation tower, seed crystals need to be continuously added to the tower to carry out the chemical reaction. The equipment that continuously provides seed crystals to the fluidized bed crystallization granulation is called the feeding system. Since CaCO3 is insoluble in water, it needs to be mixed as evenly as possible in water before feeding in order to accelerate the reaction in the fluidized bed crystallization granulation. Therefore, the feeding system needs to be designed as a structure with the function of mixing water and CaCO3. Summary of the Invention

[0005] To address the issue of ensuring uniform mixing of CaCO3 seed crystals when they enter a fluidized bed for crystallization and granulation, this invention provides a feeding system for a crystallization and granulation tower.

[0006] This utility model adopts the following technical solution: a feeding system for a crystallization granulation tower, comprising:

[0007] Container, the top of which is sealed;

[0008] A water inlet container, wherein the water inlet container is connected to the bottom of the container;

[0009] A water inlet pipe, on which a pump is installed, is connected to the bottom of the water inlet container;

[0010] A water outlet pipe is located at the bottom of the container;

[0011] A swirling device is installed inside the container, and the swirling device is located directly above the connection between the water inlet pipe and the water inlet container.

[0012] In some embodiments, the swirling device includes:

[0013] Intermediate plate;

[0014] An outer side plate, wherein the outer side plate is disposed outside the middle plate;

[0015] The swirl vanes are arranged in a ring between the middle plate and the outer plate, with 36 swirl vanes arranged in a ring.

[0016] In some embodiments, the swirl vane is set at a 30° angle to the horizontal direction.

[0017] In some embodiments, the swirling device includes:

[0018] Circular closure device;

[0019] A jet unit is uniformly arranged on the annular closure device.

[0020] In some embodiments, the jet unit includes:

[0021] The main chamber has an inlet and an outlet at its upper and lower ends, respectively.

[0022] Feedback channels are located on both sides of the main chamber and are connected to the inlet and outlet.

[0023] The cross-sectional area of ​​the main chamber is larger than the cross-sectional area of ​​the feedback channel.

[0024] In some embodiments, the feedback channels of two adjacent jet units are integrated to form a side-by-side common feedback channel.

[0025] In some embodiments, the container is mounted on a support.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] This invention designs a feeding system that can uniformly mix seed crystals with water during feeding, thereby increasing the chemical reaction rate of the fluidized bed crystallization and granulation process after feeding. This invention also designs a novel mixing structure that allows water to automatically mix during movement, saving energy consumption. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the cyclone device in Example 1;

[0030] Figure 3 This is a schematic diagram of the cyclone device in Example 2;

[0031] Figure 4 This is a schematic diagram of the jet unit in Example 2;

[0032] In the diagram, 1-container, 2-inlet container, 3-inlet pipe, 4-outlet pipe, 5-swirling device, 6-support, 5.1-swirling vane, 5.2-intermediate plate, 5.3-outer plate, 5.4-jet unit, 5.5-annular closure device, 5.6-inlet, 5.7-outlet, 5.8-main chamber, 5.9-feedback channel. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] like Figure 1 As shown, a feeding system for a crystallization granulation tower includes:

[0035] Container 1, the top of which is sealed;

[0036] Water inlet container 2, which is connected to the bottom of container 1;

[0037] Water inlet pipe 3, a pump is installed on the water inlet pipe 3, and the water inlet pipe 3 is connected to the bottom of the water inlet container 2;

[0038] Water outlet pipe 4 is located at the bottom of container 1;

[0039] A swirling device 5 is installed inside the container 1, and is located directly above the connection between the water inlet pipe 3 and the water inlet container 2.

[0040] Specifically, water containing seed crystals is pumped from the inlet pipe 3 into the inlet container 2, gradually submerging the vortex device 5. A vortex is then formed in the vortex device 5, uniformly mixing the seed crystals and water. Since the top of container 1 is sealed, the air inside container 1 is compressed between the water level and the top of container 1. As the water level gradually rises, the pressure on the water surface continuously increases, and the water mixed with the seed crystals is forced into the outlet pipe 4 for feeding.

[0041] In Example 1, as Figure 2 As shown, the swirl device 5 includes:

[0042] Intermediate plate 5.2;

[0043] Outer side plate 5.3, which is disposed outside the middle plate 5.2;

[0044] Swirl vanes 5.1, 36 of which are arranged in a ring between the middle plate 5.2 and the outer plate 5.3.

[0045] The swirl vane 5.1 is set at a 30° angle with the horizontal direction.

[0046] Specifically, there are gaps between each adjacent swirl plate 5.1. As water rises from the bottom, it forms vortices, thereby achieving the effect of mixing water and seed crystals.

[0047] In Example 2, as Figure 3 , 4 As shown, the swirl device 5 includes:

[0048] 5.5 ring-shaped closure device;

[0049] The jet unit 5.4 is evenly arranged on the annular closure device 5.5.

[0050] The jet unit 5.4 includes:

[0051] The main chamber 5.8 has an inlet 5.6 and an outlet 5.7 at its upper and lower ends, respectively.

[0052] Feedback channel 5.9 is located on both sides of the main chamber 5.8 and is connected to the inlet 5.6 and the outlet 5.7;

[0053] The cross-sectional area of ​​the main chamber 5.8 is greater than the cross-sectional area of ​​the feedback channel 5.9.

[0054] The feedback channels 5.9 of two adjacent jet units 5.4 form a single unit, creating a parallel common feedback channel.

[0055] Specifically, the annular closure device 5.5 has a ring-shaped structure. Water flows into the jet unit 5.4 from the inlet and forms a jet after entering the main chamber. Near the outlet of the main chamber, a small portion of the jet flows along the feedback loop near the right surface back to the inlet of the main chamber, causing the main jet to deflect to the left surface of the main chamber. This process repeats continuously, thus causing periodic pressure oscillations within the main chamber. Water is ejected from each jet unit, exhibiting a periodic oscillation that alternates between clockwise and counterclockwise on the annular cylindrical surface, forming a three-dimensional jet torus.

[0056] Container 1 is mounted on bracket 6.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A feeding system for a crystallization granulation tower, characterized in that, include: Container (1), the top of which is sealed; Water inlet container (2), the water inlet container (2) is connected to the bottom of container (1); A water inlet pipe (3) is provided with a pump and is connected to the bottom of the water inlet container (2); Water outlet pipe (4), the water outlet pipe (4) is set at the bottom of container (1); Swirling device (5) is installed inside container (1) and is located directly above the connection between water inlet pipe (3) and water inlet container (2).

2. The feeding system of the crystallization granulation tower according to claim 1, characterized in that, The swirling device (5) includes: Intermediate plate (5.2); An outer side plate (5.3) is disposed outside the middle plate (5.2); Swirl vanes (5.1) are provided in 36 units, and the 36 swirl vanes (5.1) are connected in a ring between the middle plate (5.2) and the outer plate (5.3).

3. The feeding system of the crystallization granulation tower according to claim 2, characterized in that, The swirl vane (5.1) is set at a 30° angle with the horizontal direction.

4. The feeding system of the crystallization granulation tower according to claim 1, characterized in that, The swirling device (5) includes: Circular closure device (5.5); The jet unit (5.4) is evenly arranged on the annular closure device (5.5).

5. The feeding system of the crystallization granulation tower according to claim 4, characterized in that, The jet unit (5.4) includes: The main chamber (5.8) has an inlet (5.6) and an outlet (5.7) at its upper and lower ends, respectively. Feedback channel (5.9) is located on both sides of the main chamber (5.8) and is connected to the inlet (5.6) and outlet (5.7); The cross-sectional area of ​​the main chamber (5.8) is greater than that of the feedback channel (5.9).

6. The feeding system of the crystallization granulation tower according to claim 5, characterized in that, The feedback channels (5.9) of two adjacent jet units (5.4) are integrated to form a parallel common feedback channel.

7. The feeding system of the crystallization granulation tower according to claim 1, characterized in that, The container (1) is mounted on the support (6).

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