Phosphate crystallizer
By designing an inverted conical mixing chamber and diversion column in a phosphate crystallizer, the problems of small contact area between steam and solution and crushing of crystal particles in traditional equipment are solved, and a more efficient crystallization process and better separation effect are achieved.
Patent Information
- Application Number
- CN202421473542.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In traditional phosphate crystallizers, the contact area between steam and solution is small, resulting in poor mixing effect. At the same time, the high-speed rotation of the circulating pump will crush the crystal particles, resulting in a low particle size.
A phosphate crystallizer including a separation tank and a driving box is designed, by providing a tapered cover and an ejection head at the connection between the hose and the second pipeline to form an inverted conical mixing chamber, the solution is sprayed upward from the bottom, steam and solution are cross-jetted to increase the contact area, and the contact area between the solution and air is increased through the guide column and the guide hole.
It improves the mixing efficiency between steam and solution, increases the crystallization efficiency, and has simple structure, convenient operation, low energy consumption, and good practicality.
Smart Images
Figure CN222854650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a phosphate crystallizer and belongs to the technical field of crystallization. Background Art
[0002] A phosphate crystallizer is a common chemical equipment used to separate phosphate crystals from a solution. Traditional phosphate crystallizers usually use evaporation or cooling crystallization methods to precipitate phosphate crystals from a solution by evaporation. There are some problems. When steam contacts a solution, the solution is transported through a water pipe, and the area where the solution is brought together to contact the steam is small, resulting in poor mixing effects. At the same time, the solution is generally driven to flow by a circulating pump. When the blades in the circulating pump rotate at high speed, the crystal particles in the solution will be crushed to form secondary crystal nuclei, resulting in a low particle size of the crystal. Therefore, the utility model provides a phosphate crystallizer for solving the above problems. Utility Model Content
[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a phosphate crystallizer, which can solve the problem of small contact area between steam and solution.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a phosphate crystallizer, including a separation tank and a drive box, the outlet of the separation tank is connected to the inlet of the drive box, the outlet of the drive box is connected to the inlet of the separation tank, the solution circulates between the separation tank and the drive box, and a circulation device for driving the solution flow is installed inside the drive box.
[0005] An injection head is fixed at the outlet of the driving box, a second pipeline is fixed at the inlet of the separation tank, a conical cover is fixed on the second pipeline, an inverted conical mixing chamber is arranged between the injection head and the conical cover, the conical cover is connected with a device for spraying steam into the mixing chamber, the mixing chamber is in the shape of an inverted cone, the injection head sprays upward from the bottom, and during the spraying process, the steam pipe injects steam laterally from one side of the conical cover, and the cross-injection can make the steam and the solution mix more easily, and when the solution is sprayed to the top cone surface, the solution will also spread to the surroundings, thereby further improving the mixing efficiency.
[0006] Preferably, the separation tank and the driving box are connected via a first pipeline, and a material outlet and a liquid inlet are installed on the first pipeline.
[0007] Preferably, a hose is arranged inside the drive box, and the upper and lower ends of the hose are respectively connected to the injection head and the first pipeline. A wheel is rotatably installed inside the drive box, and a plurality of protrusions are provided on the wheel. When the wheel rotates, the protrusions can push the liquid inside the hose to flow in the direction of the injection head. A motor for driving the wheel to rotate is fixed to the outside of the drive box. Driven by the motor, the wheel rotates the protrusion to apply pressure to the hose. When the hose is flattened, the liquid protrusion continues to rotate, thereby driving the liquid to flow in the hose.
[0008] Preferably, a plurality of injection ports are provided inside the injection head, and the upper ends of the plurality of injection ports point outward.
[0009] Preferably, a guide column is fixed inside the separation tank, and a plurality of guide holes are provided inside the guide column. The diameter of the guide holes is relatively large. When the solution flows from the inside of the guide holes, the solution will not fill the guide holes. The middle of the guide holes is hollow. When the liquid flows from the inside of the guide holes, the contact area with the air inside the separation tank is increased, thereby achieving a better separation effect.
[0010] Preferably, the bottom of the separation tank is in an inverted cone shape, and the first pipeline is connected to the cone opening at the lower end of the separation tank. After the liquid is separated by the separation tank, it will continue to flow into the first pipeline to participate in the circulation.
[0011] Preferably, a condensation tank is fixed to the upper end of the separation tank, and the condensation tank is connected to a water outlet.
[0012] Preferably, the condensation tank is connected to a condensation water pipe.
[0013] Beneficial effects:
[0014] The utility model provides a conical cover and a spray head at the connection between the hose and the second pipeline to form a mixing chamber, and the solution is sprayed upward from the bottom, so that the contact area between the steam entering from one side and the solution is increased, and the top of the mixing chamber is in an inverted cone shape. When the solution is sprayed onto the cone surface, it can diffuse outward, thereby dispersing the solution, further increasing the contact area and improving the crystallization efficiency.
[0015] By arranging the guide column and the guide hole, the contact area between the solution and the air inside the separation tank is increased, and the separation effect is improved. The phosphate crystallizer of the utility model has a simple structure, convenient operation, low energy consumption and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 This is an internal diagram of the drive box of the utility model.
[0018] Figure 3This is a connection diagram of the conical cover and the injection head of the utility model.
[0019] Figure 4 This is an internal diagram of the separation tank of the present utility model.
[0020] In the figure: 1, separation tank, 2, first pipeline, 3, drive box, 4, water outlet, 5, conical cover, 6, second pipeline, 7, condenser, 8, discharge port, 9, liquid inlet, 10, steam pipe, 11, injection head, 12, impeller, 13, mixing chamber, 14, injection port, 15, guide hole, 16, hose. DETAILED DESCRIPTION
[0021] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.
[0022] Embodiment 1
[0023] like Figure 1-Figure 4 As shown, in this embodiment, a phosphate crystallizer is provided, including a separation tank 1 and a drive box 3, the outlet of the separation tank 1 is connected to the inlet of the drive box 3, the outlet of the drive box 3 is connected to the inlet of the separation tank 1, the solution circulates between the separation tank 1 and the drive box 3, and a circulation device for driving the solution to flow is installed inside the drive box 3. Driven by the circulation device, the solution flows from the separation tank 1 to the drive box 3, and then enters the separation tank 1 from the drive box 3. Crystallization is performed on the solution during the circulation process. The separation tank 1 and the drive box 3 are connected by a first pipeline 2, and a discharge port 8 and a liquid inlet 9 are installed on the first pipeline 2. The discharge port 8 is used to discharge the crystallized product out of the device, and the liquid inlet 9 is used to inject the raw material liquid into the circulation system. The discharge of the product and the injection of the raw material liquid are both basic functions of the existing crystallizer, and are not the innovation points of the present utility model, so the present utility model is not specifically described. It is explained that a hose 16 is arranged inside the driving box 3, and the upper and lower ends of the hose 16 are connected to the injection head 11 and the first pipeline 2 respectively. A wheel 12 is rotatably installed inside the driving box 3, and a plurality of protrusions are provided on the wheel 12. In this embodiment, the number of protrusions is three, and the three protrusions can ensure that two adjacent protrusions can continuously press the hose 16. When the wheel 12 rotates, the protrusions can push the liquid inside the hose 16 to flow in the direction of the injection head 11. A motor for driving the wheel 12 to rotate is fixed on the outside of the driving box 3. Driven by the motor, the wheel 12 rotates the protrusion to apply pressure to the hose 16. When the hose 16 is flattened, the liquid protrusion continues to rotate, thereby driving the liquid to flow in the hose 16. A condensation tank 7 is fixed on the upper end of the separation tank 1, and the condensation tank 7 is connected to the water outlet 4. The steam enters the condensation tank 7 from the separation tank 1 upward, and the condensed liquid is discharged from the water outlet 4.
[0024] A spray head 11 is fixed at the outlet of the driving box 3, a second pipeline 6 is fixed at the inlet of the separation tank 1, a conical cover 5 is fixed on the second pipeline 6, an inverted cone-shaped mixing chamber 13 is provided between the spray head 11 and the conical cover 5, a plurality of spray ports 14 are provided inside the spray head 11, and the upper ends of the plurality of spray ports point outward, and the solution is sprayed outward through the spray ports 14, with a large spraying area and can be sprayed on the conical surface, thereby increasing the contact area with the steam, and the upper part of the conical cover 5 is connected to spray the steam into the mixing chamber 13, and the mixing chamber 13 is inverted cone shape, combined with Figure 3 The spray head 11 sprays upward from the bottom. During the spraying process, the steam pipe 10 injects steam laterally from one side of the conical cover 5. The cross-spraying can make the steam and the solution mix more easily, and when the solution is sprayed to the top cone surface, the solution will also spread around, thereby further improving the mixing efficiency. The condensation tank 7 is connected to the condensation water pipe to ensure that the condensation water can enter the condensation tank 7.
[0025] Embodiment 2
[0026] Combination Figure 4 On the basis of the first embodiment, the present embodiment provides a phosphate crystallizer with better separation effect. A guide column is fixed inside the separation tank 1. A plurality of guide holes 15 are arranged inside the guide column. The diameter of the guide hole 15 is relatively large. When the solution flows from the inside of the guide hole 15, the solution will not fill the guide hole 15. The middle part of the guide hole 15 is hollow. When the liquid flows from the inside of the guide hole 15, the contact area with the air inside the separation tank 1 is increased, so that the separation effect is better. The bottom of the separation tank 1 is inverted cone shape. The first pipeline 2 is connected to the lower end cone of the separation tank 1. After the liquid is separated by the separation tank 1, it will continue to flow into the first pipeline 2 to participate in the circulation.
[0027] Working principle: the solution enters from the liquid inlet 9, enters into the hose 16 through the first pipeline 2, and under the push of the rotor 12, the liquid is sprayed toward the inside of the mixing chamber 13 from the spray head 11 at the upper end of the hose 16, and the steam enters from the steam pipe 10 and is fully mixed with the sprayed solution. After mixing, it enters the separation tank 1 through the second pipeline 6, and the steam and crystals are separated in the separation tank 1. The crystals are discharged from the discharge port 8, and the unseparated solution continues to enter the first pipeline 2 to participate in the circulation. The steam enters the cooling tank from the upper end of the separation tank 1 and is discharged. The crystallizer can fully mix the steam and the solution, increase the crystallization speed, and improve the crystallization efficiency.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.
Claims
1. A phosphate crystallizer, comprising a separation tank (1) and a drive box (3), wherein the outlet of the separation tank (1) is connected to the inlet of the drive box (3), the outlet of the drive box (3) is connected to the inlet of the separation tank (1), a solution circulates between the separation tank (1) and the drive box (3), and a circulation device for driving the solution to flow is installed inside the drive box (3); It is characterized in that An injection head (11) is fixed at the outlet of the driving box (3), a second pipeline (6) is fixed at the inlet of the separation tank (1), a conical cover (5) is fixed on the second pipeline (6), an inverted conical mixing chamber (13) is provided between the injection head (11) and the conical cover (5), and a valve is connected to the top of the conical cover (5) to spray steam into the mixing chamber (13).
2. A phosphate crystallizer according to claim 1, characterized in that: The separation tank (1) and the drive box (3) are connected via a first pipeline (2), and a material outlet (8) and a liquid inlet (9) are installed on the first pipeline (2).
3. A phosphate crystallizer according to claim 2, characterized in that: A hose (16) is arranged inside the driving box (3), and the upper and lower ends of the hose (16) are respectively connected to the spray head (11) and the first pipeline (2). A rotating wheel (12) is rotatably installed inside the driving box (3), and a plurality of protrusions are provided on the rotating wheel (12). When the rotating wheel (12) rotates, the protrusions can push the liquid inside the hose (16) to flow in the direction of the spray head (11).
4. A phosphate crystallizer according to claim 1, characterized in that: The injection head (11) is provided with a plurality of injection ports (14) inside, and the upper ends of the plurality of injection ports point outward.
5. A phosphate crystallizer according to claim 1, characterized in that: A flow guide column is fixed inside the separation tank (1), and a plurality of flow guide holes (15) are provided inside the flow guide column.
6. A phosphate crystallizer according to claim 3, characterized in that: The bottom of the separation tank (1) is in an inverted cone shape, and the first pipeline (2) is connected to the cone opening at the lower end of the separation tank (1).
7. A phosphate crystallizer according to claim 1, characterized in that: A condensation tank (7) is fixed to the upper end of the separation tank (1), and the condensation tank (7) is connected to a water outlet (4).
8. A phosphate crystallizer according to claim 7, characterized in that: The condensation tank (7) is connected to a condensation water pipe.