Enhanced separation type crystallization granulation device

Abstract

The utility model discloses an enhanced separation type crystallization and granulation device in the technical field of water treatment, and aims to solve the problems that effluent is easy to become turbid when the rising load of the conventional crystallization and granulation device is relatively high and the like. The granulating device comprises a granulating main body, wherein the granulating main body comprises an inner cylinder arranged in an outer cylinder; a backflow slit is formed between the inner cylinder and the outer cylinder; the upper port of the outer cylinder is in butt joint with the lower port of the first conical cylinder; the diameter of the upper port of the first conical barrel is greater than that of the lower port of the first conical barrel; the lower port of the outer cylinder is in butt joint with the upper port of the second conical cylinder; the diameter of the lower port of the second conical barrel is smaller than that of the lower port of the second conical barrel; the lower port of the second conical barrel is sequentially connected with a dosing area, a water inlet area and a deposition area; the reinforced separation area comprises a separation barrel and an inclined tube reinforced separation device; the inclined tube reinforced separation device is arranged at the upper part of the separation barrel; the lower port of the separation cylinder is in butt joint with the upper port of the first conical cylinder; the device is suitable for water treatment, the effluent turbidity is optimized, and the overall efficient and stable operation is improved.

Description

Technical Field

[0001] The utility model relates to a strengthened separation type crystallization granulation device, belonging to the technical field of water treatment. Background Technique

[0002] The chemical precipitation method is widely used in water treatment. This technology transfers the target ions in water from the liquid phase to the solid phase to remove specific pollutants. A large amount of chemical precipitation sludge that is difficult to treat and dispose will be generated during the treatment process, and the pollution problem has not been fundamentally solved. The induced crystallization process developed in recent years absorbs the advantages of the chemical precipitation method such as fast reaction and simple operation. No precipitation sludge is generated during the process, and the removal and recovery of heavy metals in wastewater can be achieved, with good application prospects. The induced crystallization process is to fill an appropriate amount of mineral particles as induced crystal seeds in a fluidized bed crystallization device, and then add specific softening agents to the wastewater, so that the target removal ions in the wastewater crystallize and precipitate on the surface of the induced crystal seeds through the crystallization process, forming crystalline particles with a certain particle size and strength, and regularly discharging the larger-sized crystalline particles to achieve the purpose of removing and recovering the target ions. The above-mentioned equipment has successfully realized the integration and equipment of water treatment technology, and the water purification effect is obvious, but there are also certain technical defects.

[0003] The patent with the application number: CN202210373340.3 discloses an induced crystallization granulation fluidized bed device, which has good treatment effects on high-hardness water containing a large amount of calcium ions and has good adaptability to industrial circulating cooling water, reclaimed municipal sewage, groundwater and other water qualities. When softening the water quality, this device mainly converts Ca in the water 2+ into CaCO3 to achieve the purpose of removing hardness. When treating hard water with a relatively high Mg 2+ content, due to the relatively low adhesion efficiency of the crystals formed by Mg 2+ on the surface of the induced crystal seeds, there is a situation of relatively high effluent turbidity when the rising load of the device is relatively high, and the effluent needs to be further treated. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a strengthened separation type crystallization granulation device, which can effectively improve the induced crystallization effect and the effluent water quality, obtain a better solid-liquid separation effect while ensuring a good crystallization effect; optimize the effluent turbidity while improving the overall stable operation of the strengthened separation type crystallization granulation device.

[0005] To achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] The utility model provides a strengthened separation type crystallization granulation device, which comprises a granulation main body. The granulation main body includes an outer cylinder, an inner cylinder, a medicine adding area, a water inlet area and a sedimentation area. The inner cylinder is arranged inside the outer cylinder. A crystallization granulation area is formed inside the inner cylinder. A reflux slit formed between the inner cylinder and the outer cylinder is a sedimentation area. The upper port of the outer cylinder is butted with the lower port of a first conical cylinder. The diameter of the upper port of the first conical cylinder is larger than that of the lower port of the first conical cylinder. The lower port of the outer cylinder is butted with the upper port of a second conical cylinder. The diameter of the lower port of the second conical cylinder is smaller than that of the lower port of the second conical cylinder. The lower port of the second conical cylinder is successively connected with the medicine adding area, the water inlet area and the sedimentation area.

[0007] A strengthened separation area, which includes a separation cylinder and an inclined tube strengthened separation device. The inclined tube strengthened separation device is arranged at the upper part of the separation cylinder. The lower port of the separation cylinder is butted with the upper port of the first conical cylinder.

[0008] Further, an attachment groove extends upward from the upper port of the separation cylinder. An annular water collecting tank is arranged on the outer periphery of the attachment groove, and the upper port of the attachment groove is flush with the upper port of the annular water collecting tank. A water outlet pipe is arranged below the annular water collecting tank.

[0009] Further, the upper port of the separation cylinder is sealed by a top cover. The top cover is an upwardly convex arc-shaped surface structure. A water outlet pipe is arranged on the top cover.

[0010] Further, the medicine adding area includes a medicine placing cylinder and an annular medicine adding pipe. The upper port of the medicine placing cylinder is communicated with the lower port of the second conical cylinder. The annular medicine adding pipe is communicated and arranged on the outer periphery of the medicine placing cylinder.

[0011] Further, the water inlet area includes a water inlet cylinder and a water inlet pipe. The upper port of the water inlet cylinder is communicated with the lower port of the medicine placing cylinder. The water inlet pipe is communicated and arranged on the water inlet cylinder.

[0012] Further, the sedimentation area includes a sedimentation tank. The upper port of the sedimentation tank is communicated with the lower port of the water inlet cylinder. The lower bottom surface of the sedimentation tank is a downwardly convex arc-shaped surface structure.

[0013] Further, a slag discharge pipe is arranged on the lower bottom surface of the sedimentation tank.

[0014] Further, a support device is also included. The support device includes support legs. A plurality of the support legs are arranged at intervals at the bottom of the sedimentation tank.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0016] The utility model provides a reinforced separation crystallization granulation device, in which the upper port and the lower port of the outer cylinder are respectively provided with a variable diameter structure (a first conical cylinder and a second conical cylinder), which can effectively improve the rising load and residence time of water flow in different functional areas. The water inlet area at the bottom of the outer cylinder requires a higher rising load to promote the softening agent and the inlet water to be fully mixed. A reflux slit is formed between the middle end of the outer cylinder and the inner cylinder to promote the reflux of the crystal seeds. The increase in the diameter of the upper end of the outer cylinder can effectively reduce the rising load, effectively improve the induced crystallization effect and the water quality of the effluent, and obtain a better solid-liquid separation effect while ensuring a good crystallization effect. At the same time, in conjunction with the inclined tube reinforced separation device set on the granulation body, the solid-liquid separation effect is further improved through the physical structure, and the small-diameter crystal particles generated in the crystallization granulation area and the crystals that are not effectively attached to the surface of the induced crystal seeds are effectively removed, the turbidity of the effluent is optimized, and the operation stability of the device of the present application is improved.

[0017] The utility model flexibly arranges the device structure for processing water quality and water quantity, and adopts both closed and open structures, that is, a connecting groove extends upward from the upper port of the separation cylinder, or a top cover seal is arranged at the upper port of the separation cylinder. It has good adaptability to water quality and water quantity, and has a wider range of application scenarios in actual applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an open type enhanced separation type crystallization granulation device provided in this embodiment;

[0019] Figure 2 It is a schematic structural diagram of a closed enhanced separation crystallization granulation device provided in this embodiment;

[0020] In the figure: 1. outer cylinder; 2. inner cylinder; 3. first conical cylinder; 4. second conical cylinder; 5. connecting plate; 6. drug placement cylinder; 7. annular dosing pipe; 8. water inlet cylinder; 9. water inlet pipe; 10. sedimentation trough; 11. slag discharge pipe; 12. supporting legs; 13. water outlet pipe; 14. connecting trough; 15. annular water collecting trough; 16. top cover; 17. separation cylinder; 18. enhanced separation device. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0022] See also Figure 1 and Figure 2 This embodiment provides a reinforced separation type crystallization granulation device, which includes a granulation body and a reinforced separation zone. The reinforced separation zone is arranged above the granulation body.

[0023] Specifically, the granulation main body includes an outer cylinder 1, an inner cylinder 2, a chemical addition area, a water inlet area, and a sedimentation area. The inner cylinder 2 is installed inside the outer cylinder 1 through a connecting plate 5, and a reflux slit is formed between the inner cylinder 2 and the outer cylinder 1, and this reflux slit serves as the sedimentation area during the reaction process. The inner space of the inner cylinder 2 serves as the crystallization granulation area. The outer cylinder 1 further includes a first conical cylinder 3 and a second conical cylinder 4. The upper port of the first conical cylinder 3 is butt-connected and communicated with the enhanced separation area, and the lower port of the first conical cylinder 3 is butt-connected and communicated with the upper port of the outer cylinder 1. The diameter of the upper port of the first conical cylinder 3 is set to be larger than the diameter of the lower port of the first conical cylinder 3. The upper port of the second conical cylinder 4 is butt-connected and communicated with the lower port of the outer cylinder 1. The lower port of the second conical cylinder 4 is successively butt-connected and communicated with the chemical addition area, the water inlet area, and the sedimentation area from bottom to top. The diameter of the lower port of the second conical cylinder 4 is set to be smaller than the lower port of the second conical cylinder 4.

[0024] The enhanced separation area includes a separation cylinder 17 and an inclined tube enhanced separation device 18. The inclined tube enhanced separation device 18 adopts the prior art. The inclined tube enhanced separation device 18 is specifically arranged in the upper part of the separation cylinder 17, and the lower port of the separation cylinder 17 is butt-connected and communicated with the upper port of the first conical cylinder 3.

[0025] Working principle: The raw water is high-hardness water quality. Alkali solution is used as a softening chemical to treat the hardness ions in the water, and garnet ore particles within a certain particle size range are selected as the induced seeds.

[0026] When using the enhanced separation type crystallization granulation device, the high-hardness raw water and the alkali solution enter the device through the water inlet area and the chemical addition area respectively. In the crystallization granulation area (inner cylinder 2), they come into contact with the previously added garnet ore particles and undergo an induced crystallization process. Under alkaline conditions, Ca2+ and Mg2+ in the water generate insoluble substances such as CaCO3 and Mg(OH)2 and adhere to the surface of the ore particles to form crystalline particles. As the water flow continuously rises and overflows into the sedimentation area (the reflux slit formed between the outer cylinder 1 and the inner cylinder 2) for solid-liquid separation. The larger-sized crystalline particles enter the crystalline substance sedimentation area, and some of the smaller-sized crystalline particles and the water flow return to the crystallization granulation area (inner cylinder 2) through the negative pressure formed between the second conical cylinder 4 at the lower end of the outer cylinder 1 and the inner cylinder 2 to continue the crystallization reaction. Some of the smaller-sized crystalline particles and the insoluble substances that have not effectively adhered to the surface of the ore particles rise with the water flow to the inclined tube enhanced separation device 18 in the enhanced separation area for further solid-liquid separation. The softened water is discharged from the upper part of the inclined tube enhanced separation device 18. The first conical cylinder 3 provided at the upper end of the outer cylinder 1 effectively reduces the rising load, improves the induced crystallization effect and the water quality of the effluent, and obtains a better solid-liquid separation effect while ensuring a good crystallization effect.

[0027] In addition, an inclined tube enhanced separation device 18 is added to the upper end of the granulation body, and the physical structure can be used to further improve the solid-liquid separation effect, effectively remove the small-size crystalline particles generated in the crystallization granulation area and the crystals that are not effectively attached to the surface of the induced crystal seeds, optimize the effluent turbidity and improve the operating stability of the device.

[0028] The structure of the enhanced separation crystallization granulation device can be flexibly set according to the water quality and water quantity to be treated, and can adopt two structures: closed type and open type. The details are as follows:

[0029] In some embodiments, Figure 1 The enhanced separation crystallization granulation device adopts an open structure, specifically including: a connecting groove 14 extends upward from the upper port of the separation cylinder 17. An annular water collecting trough 15 is arranged on the periphery of the connecting groove 14. The upper port of the annular water collecting trough 15 is arranged flush with the upper port of the connecting groove 14, and a water outlet pipe 13 is opened at the bottom of the annular water collecting trough 15. After the action in the enhanced separation crystallization granulation device, the softened water continuously rises to the connecting groove 14, overflows into the annular water collecting trough 15 through the connecting groove 14, and then flows out through the water outlet. The coordinated arrangement of the entire connecting groove 14 and the annular water collecting trough 15 can ensure the rapid collection and efficient discharge of softened water, thereby improving the working efficiency of the entire device.

[0030] In some embodiments, Figure 1 The enhanced separation crystallization granulation device adopts a closed structure, specifically including: a top cover 16 is arranged at the upper port of the separation cylinder 17, and the top cover 16 is used to seal the upper port of the separation cylinder 17; wherein the top cover 16 is an upward convex arc surface structure; a water outlet pipe 13 is arranged on the top cover 16, and the water outlet pipe 13 is arranged between the highest point and the lowest point of the upward convex arc surface. The design purpose is to quickly discharge softened water through the action of water pressure.

[0031] Optionally, the drug adding area includes a drug placement cylinder 6 and an annular drug adding tube 7. The upper port of the drug placement cylinder 6 is connected to the lower port of the second conical cylinder 4. The annular drug adding tube 7 is arranged on the periphery of the drug placement cylinder 6 and is connected to the drug placement cylinder 6. When adding drugs, the reaction drug is uniformly mixed into the drug placement cylinder 6 through the annular drug adding tube 7, so that it is uniformly repeatedly contacted and mixed with other reactants, thereby accelerating the reaction efficiency.

[0032] Optionally, the water inlet area includes a water inlet cylinder 6 and a water inlet pipe 9. The upper port of the water inlet cylinder 6 is connected to the lower port of the drug insertion cylinder 6. The water inlet pipe 9 is connected and arranged at the waist of the water inlet cylinder 6 to provide high hardness water input for the entire device.

[0033] Optionally, the deposition area includes a deposition tank 10. The upper port of the deposition tank 10 is docked and communicated with the lower port of the water inlet cylinder 6. The lower bottom surface of the deposition tank 10 is provided with a downwardly convex arc surface structure. The setting of the downwardly convex arc surface structure can disperse the pressure generated by the sediment and various reactants together, improving the overall safety and service life of the device. A slag discharge pipe 11 is provided on the lower bottom surface of the deposition tank 10. When the device in this application operates continuously, crystals continuously adhere to the surface of the induced crystal seeds inside, resulting in the growth phenomenon of the induced crystal seeds. Among them, the crystals with larger particle sizes precipitate in the crystal deposition area and are finally discharged from the device through the slag discharge pipe 11.

[0034] Optionally, the enhanced separation type crystal granulation device further includes a support device. The support device includes support legs 12. A plurality of support legs 12 are arranged at equal intervals at the bottom of the deposition tank 10.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0037] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An enhanced separation crystallization granulation device, characterized in that: include: A granulation body, the granulation body comprising an outer cylinder, an inner cylinder, a drug adding area, a water inlet area and a sedimentation area; the inner cylinder is arranged inside the outer cylinder; The inner cylinder forms a crystallization and granulation zone; the reflux slit formed between the inner cylinder and the outer cylinder is a sedimentation zone; The upper port of the outer cylinder is butted against the lower port of the first conical cylinder; the diameter of the upper port of the first conical cylinder is larger than the diameter of the lower port of the first conical cylinder; the lower port of the outer cylinder is butted against the upper port of the second conical cylinder; the diameter of the lower port of the second conical cylinder is smaller than the lower port of the second conical cylinder; the lower port of the second conical cylinder is sequentially connected with a dosing area, a water inlet area and a sedimentation area; An enhanced separation zone, the enhanced separation zone comprising a separation cylinder and an inclined tube enhanced separation device; the inclined tube enhanced separation device is arranged on the upper part of the separation cylinder; The lower port of the separation cylinder is butted against the upper port of the first conical cylinder.

2. The enhanced separation crystallization granulation device according to claim 1, characterized in that: A connecting groove extends upward from the upper port of the separation cylinder; an annular water collecting groove is arranged on the outer periphery of the connecting groove, and the upper port of the connecting groove is flush with the upper port of the annular water collecting groove; a water outlet pipe is arranged below the annular water collecting groove.

3. The enhanced separation crystallization granulation device according to claim 1, characterized in that: The upper port of the separation cylinder is sealed by a top cover; the top cover is an upwardly convex arc surface structure; and a water outlet pipe is arranged on the top cover.

4. The enhanced separation crystallization granulation device according to claim 1, characterized in that: The drug adding area includes a drug inserting cylinder and an annular drug adding tube; the upper port of the drug inserting cylinder is connected to the lower port of the second conical cylinder; and the outer periphery of the drug inserting cylinder is connected to the annular drug adding tube.

5. The enhanced separation crystallization granulation device according to claim 4, characterized in that: The water inlet area includes a water inlet cylinder and a water inlet pipe; the upper port of the water inlet cylinder is connected to the lower port of the medicine insertion cylinder; the water inlet pipe is connected and arranged on the water inlet cylinder.

6. The enhanced separation crystallization granulation device according to claim 5, characterized in that: The sedimentation area includes a sedimentation trough; the upper port of the sedimentation trough is communicated with the lower port of the water inlet cylinder; the lower bottom surface of the sedimentation trough is a downwardly convex arc surface structure.

7. The enhanced separation crystallization granulation device according to claim 6, characterized in that: A slag discharge pipe is arranged on the lower bottom surface of the sedimentation tank.

8. The enhanced separation crystallization granulation device according to claim 6, characterized in that: It also includes a supporting device; the supporting device includes supporting legs; a plurality of the supporting legs are arranged at intervals at the bottom of the sedimentation tank.

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