Crystallization and granulation water treatment equipment with renewable crystal inducing carrier

Abstract

The utility model relates to the technical field of water treatment, and discloses crystallization granulation water treatment equipment with a renewable crystal inducing carrier, which comprises an equipment main body and a crystal inducing carrier regeneration system, the equipment main body comprises an outer cylinder, a first middle cylinder, a second middle cylinder, an inner cylinder and a base, a first middle cylinder, a second middle cylinder and an inner cylinder are sequentially and coaxially arranged in the outer cylinder from outside to inside and connected through rib plates, a water distribution device and a chemical distribution device are arranged at the bottom of the first middle cylinder, an equipment sludge discharge pipe is fixedly connected to the lower portion of the outer cylinder, and the inner cylinder is connected with a water inlet pipe. According to the device, the water treatment device and the crystal inducing carrier system are arranged in a centralized manner, so that the size of the system is effectively reduced, the operation process of the system is optimized, and the operation efficiency of the system is improved.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment, and in particular to a crystallization granulation water treatment device with a regenerable crystal-inducing carrier. Background Art

[0002] As the national environmental protection requirements are gradually tightened, the requirements for wastewater discharge generated in the industrial water cycle are gradually increasing. The resource utilization of industrial wastewater has become an effective way to reduce the production costs of enterprises and create good ecological benefits. Industrial wastewater usually contains a large amount of inorganic metals and non-metallic ions. At present, chemical precipitation, membrane separation, ion exchange, electrochemical method and other technologies are commonly used for them. The existing technical processes have problems such as high operating costs, high one-time investment costs and complex operations in actual operation. In addition, inorganic ions in water, especially metal ions, are usually discharged from the system output as solid waste in the form of sludge treatment. The treatment cost of this type of sludge is high and the metal ions cannot be recycled and reused. Therefore, the development of a water treatment technology with low cost, high treatment efficiency, low intermediate wastewater and waste discharge, and quantitative recovery of metal ions in water has certain application prospects in the field of industrial wastewater treatment.

[0003] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the application and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0004] The purpose of this utility model is to provide a crystallization granulation water treatment equipment with a regenerable crystal-inducing carrier. The induced crystallization technology is used to cause the inorganic ions in the water to react to form crystals that adhere to the surface of the crystal-inducing carrier for recovery. The crystal-inducing carrier used in the system can be regenerated by a regeneration system, effectively reducing the amount of wastewater and waste discharged from the system.

[0005] In order to achieve the above objectives, this application is implemented by adopting the following technical solutions:

[0006] A crystallization granulation water treatment device with a regenerable crystal-inducing carrier comprises a device body and a crystal-inducing carrier regeneration system, the device body comprises an outer cylinder, a first middle cylinder, a second middle cylinder, an inner cylinder and a base, the outer cylinder is fixedly connected above the base, the first middle cylinder, the second middle cylinder and the inner cylinder are coaxially arranged in sequence from the outside to the inside of the outer cylinder and are connected by ribs, a water distribution device and a medicine distribution device are arranged at the bottom of the first middle cylinder, a mud discharge pipe of the device is fixedly connected below the outer cylinder, a water inlet pipe is connected to the inner cylinder, and the crystal-inducing carrier regeneration system is connected to the device body through a pipeline.

[0007] Optionally, the inner cylinder is connected with an inner cylinder mud discharge pipe and a crystallization agent addition pipe, and the equipment mud discharge pipe is vertically connected to the bottom of the outer cylinder and placed horizontally.

[0008] Optionally, a water outlet trough and an annular water collecting trough are provided on the wall of the outer cylinder, and the water outlet trough is connected to the annular water collecting trough.

[0009] Optionally, the crystal-inducing carrier regeneration system includes a regeneration reactor, a feed pipe, a regeneration agent dosing pipe, a discharge port and a filtrate discharge port. The regeneration reactor is provided with a discharge port, and the regeneration reactor is connected to the feed pipe, the regeneration agent dosing pipe and the filtrate discharge port. The regeneration agent dosing pipe passes through the bottom of the inner cylinder and is connected to the drug distribution device.

[0010] Optionally, the interior of the inner cylinder is a granulation fluidization zone, the space between the inner cylinder and the second middle cylinder is a reflux zone, the space between the first middle cylinder and the second middle cylinder is a guide zone, and the space between the first middle cylinder and the outer cylinder from top to bottom is a clear water zone, a mud-water separation zone, and a sludge sedimentation zone.

[0011] Optionally, the top ends of the second middle cylinder and the inner cylinder are open, the top end of the second middle cylinder is higher than the top end of the inner cylinder, and the top of the middle cylinder is higher than other cylinders.

[0012] Optionally, the bottom of the inner cylinder is in an inverted truncated cone shape, the water inlet pipe is connected to the inverted truncated cone-shaped bottom of the inner cylinder, and the water inlet pipe is provided with a check valve.

[0013] Optionally, the regeneration reactor is coated with a layer of acid corrosion resistant coating.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The utility model centrally arranges the water treatment device and the crystal-inducing carrier regeneration system. The crystal-inducing carrier regeneration system can regenerate the crystal-inducing carrier when the water treatment device is working, and realizes the continuous feeding and discharging of the crystal-inducing carrier in the two treatment devices, effectively optimizes the treatment process, saves costs, effectively reduces the system volume, optimizes the system operation process, and improves the system operation efficiency. The multi-layer cylinder structure has a good optimization effect on the flow field distribution in the device, improves the system treatment effect and solid-liquid separation effect, and has the advantages of high pollutant removal efficiency, low dosing cost and strong system stability.

[0016] 2. In the present invention, the type of regeneration agent and the dosage of the agent can be flexibly adjusted according to the carrier type. The formed crystalline particles themselves have resource value and can be directly utilized as resources after being dehydrated by the regeneration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a crystallization granulation water treatment device with a regenerative crystal inducing carrier according to the utility model;

[0019] Figure 2 This is a cross-sectional view taken along the AA direction of a crystallization granulation water treatment device with a regenerable crystal inducing carrier according to the utility model;

[0020] Figure 3 It is a BB sectional view of a crystallization granulation water treatment device with a regenerable crystal inducing carrier according to the utility model.

[0021] Description of reference numerals:

[0022] 1. Outer cylinder; 2. First middle cylinder; 3. Second middle cylinder; 4. Inner cylinder; 5. Water inlet pipe; 6. Crystallization agent dosing pipe; 7. Inner cylinder mud discharge pipe; 8. Drug distribution device; 9. Water distribution device; 10. Annular water collecting trough; 11. Water outlet trough; 12. Equipment mud discharge pipe; 13. Discharge port; 14. Regeneration reactor; 15. Feed pipe; 16. Filtrate discharge port; 17. Filter screen; 18. Regeneration agent dosing pipe; 19. Granulation fluidization zone; 20. Reflux zone; 21. Diversion zone; 22. Clean water zone; 23. Mud collection zone; 24. Mud-water separation zone. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use.

[0024] Embodiment 1:

[0025] A crystallization granulation water treatment device with a regenerable crystal-inducing carrier comprises a device body and a crystal-inducing carrier regeneration system, the device body comprises an outer cylinder 1, a first middle cylinder 2, a second middle cylinder 3, an inner cylinder 4 and a base, the outer cylinder 1 is fixedly connected above the base, the first middle cylinder 2, the second middle cylinder 3 and the inner cylinder 4 are coaxially arranged in sequence from the outside to the inside of the outer cylinder 1 and are connected by ribs, a water distribution device 9 and a medicine distribution device 8 are arranged at the bottom of the first middle cylinder 2, a device mud discharge pipe 12 is fixedly connected below the outer cylinder 1, the inner cylinder 4 is connected to a water inlet pipe 5, the crystal-inducing carrier regeneration system is connected to the lower part of the device body through a pipeline, a water outlet trough 11 and an annular water collecting trough 10 are arranged on the wall of the outer cylinder 1, and the water outlet trough 11 is connected to the annular water collecting trough 10.

[0026] The interior of the inner cylinder 4 is a granulation fluidization zone 19, the inner cylinder 4 and the second middle cylinder 3 are between a reflux zone 20, the first middle cylinder 2 and the second middle cylinder 3 are between a guide zone 21, and between the first middle cylinder 2 and the outer cylinder 1 from top to bottom are a clean water zone 22, a mud-water separation zone 24 and a sludge settling zone. The multi-layer cylinder structure has a good optimization effect on the flow field distribution in the device, thereby improving the system treatment effect and the solid-liquid separation effect.

[0027] The crystal-inducing carrier is pre-filled in the inner cylinder 4, and the raw water to be treated enters the system through the water inlet pipe 5, and is evenly distributed through the water distribution device 9. The crystallization agent is injected into the raw water at the same time, and is evenly mixed with the raw water and the crystal-inducing carrier in the equipment through the drug distribution device 8 to make the hardness ions in the water react to form crystals and adhere to the surface of the crystal-inducing carrier. When the content of suspended matter in the water is high, a good solid-liquid separation effect can be obtained through the guide area 21 formed between the multiple cylinders. The effluent after the reaction is filtered through the annular water collecting trough 10 and then flows out from the water outlet trough 11. According to the changes in the system treatment effect, the crystal-inducing carrier in the device is discharged in time through the equipment mud discharge pipe 12 at the bottom of the outer cylinder 1 and the inner cylinder mud discharge pipe 7 at the bottom of the inner cylinder 4 and introduced into the regeneration system to achieve the regeneration of the crystal-inducing carrier. The water inlet flow rate of the water inlet pipe 5 is adjusted to control the crystal-inducing carrier in the inner cylinder 4 to be in a suspended state so that the crystal-inducing carrier and the raw water are fully contacted and reacted.

[0028] The water treatment device and the crystal-inducing carrier regeneration system are centrally set up and installed, which realizes the continuous feeding and discharging of the crystal-inducing carrier in the two treatment devices, effectively optimizes the treatment process, reduces the equipment footprint, and saves system operating costs.

[0029] The inner tube 4 is connected with an inner tube mud discharge pipe 7 and a crystallization agent dosing pipe 6. The equipment mud discharge pipe 12 is vertically connected to the bottom of the outer tube 1 and placed horizontally. The inner tube mud discharge pipe 7 discharges the residual impurities in the inner tube 4, and the impurities in the outer tube 1 are discharged through the crystallization agent dosing pipe 6 and the equipment mud discharge pipe 12, thereby reducing the influence of impurities after the reaction on subsequent reactions.

[0030] The crystal-inducing carrier regeneration system includes a regeneration reactor 14, a feed pipe 15, a regeneration agent dosing pipe 18, a discharge port 13 and a filtrate discharge port 16. The regeneration reactor 14 is provided with a discharge port 13. The regeneration reactor 14 is connected with the feed pipe 15, the regeneration agent dosing pipe 18 and the filtrate discharge port 16. The regeneration agent dosing pipe 18 passes through the bottom of the inner tube 4 and is connected to the drug distribution device 8. The bottom of the outer tube 1 is connected to the equipment mud discharge pipe 12 and the inner tube mud discharge pipe 7 and the regeneration system feed pipe 15 are used to enable the crystal-inducing carrier to enter the regeneration reactor 14 from the crystallization equipment. The regenerated crystal-inducing carrier is reused through the discharge port 13, and the regenerated filtrate is discharged through the filtrate discharge port 16 and processed.

[0031] The top ends of the second middle tube 3 and the inner tube 4 are open, the top end of the second middle tube 3 is higher than the top end of the inner tube 4, and the top of the middle tube is higher than other tubes.

[0032] The bottom of the inner cylinder 4 is in the shape of an inverted truncated cone. The water inlet pipe 5 is connected to the inverted truncated cone-shaped bottom of the inner cylinder 4. The water inlet pipe 5 is provided with a check valve.

[0033] Embodiment 2:

[0034] Based on Example 1, an implementation of a regeneration reactor 14 is provided.

[0035] The regeneration reactor 14 is coated with a layer of acid corrosion resistant paint.

[0036] Different from the first embodiment, coating the acid corrosion resistant coating can reduce the corrosion of the regeneration reactor 14 by the acidic substances in the reaction process, thereby extending the service life of the regeneration reactor 14.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only used to explain the relative position relationship, movement, etc. between the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0039] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A crystallization granulation water treatment equipment with regenerable crystal inducing carrier, characterized in that: It includes an equipment main body and a crystal-inducing carrier regeneration system, the equipment main body includes an outer cylinder, a first middle cylinder, a second middle cylinder, an inner cylinder and a base, the outer cylinder is fixedly connected above the base, the first middle cylinder, the second middle cylinder and the inner cylinder are coaxially arranged in sequence from the outside to the inside of the outer cylinder, and are connected by ribs, a water distribution device and a medicine distribution device are arranged at the bottom of the first middle cylinder, a mud discharge pipe of the equipment is fixedly connected below the outer cylinder, the inner cylinder is connected to a water inlet pipe, and the crystal-inducing carrier regeneration system is connected to the equipment main body through a pipeline.

2. The crystallization granulation water treatment equipment with regenerable crystal-inducing carrier according to claim 1, characterized in that: The inner cylinder is connected with an inner cylinder mud discharge pipe and a crystallization agent adding pipe, and the equipment mud discharge pipe is vertically connected to the bottom of the outer cylinder and is placed horizontally.

3. The crystallization granulation water treatment equipment with regenerable crystal-inducing carrier according to claim 1, characterized in that: A water outlet trough and an annular water collecting trough are arranged on the wall of the outer cylinder, and the water outlet trough is connected to the annular water collecting trough.

4. The crystallization granulation water treatment equipment with regenerable crystal-inducing carrier according to claim 1, characterized in that: The crystal-inducing carrier regeneration system includes a regeneration reactor, a feed pipe, a regeneration agent dosing pipe, a discharge port and a filtrate discharge port. The regeneration reactor is provided with a discharge port. The regeneration reactor is connected with a feed pipe, a regeneration agent dosing pipe and a filtrate discharge port. The regeneration agent dosing pipe passes through the bottom of the inner cylinder and is connected to a drug distribution device.

5. The crystallization granulation water treatment equipment with regenerable crystal-inducing carrier according to claim 1, characterized in that: The interior of the inner cylinder is a granulation fluidization zone, the space between the inner cylinder and the second middle cylinder is a reflux zone, the space between the first middle cylinder and the second middle cylinder is a guide zone, and the space between the first middle cylinder and the outer cylinder from top to bottom is a clean water zone, a mud-water separation zone, and a sludge settling zone.

6. The crystallization granulation water treatment equipment with regenerable crystal-inducing carrier according to claim 1, characterized in that: The top ends of the second middle tube and the inner tube are open, the top end of the second middle tube is higher than the top end of the inner tube, and the top of the first middle tube is higher than the second middle tube, the inner tube and the outer tube.

7. The crystallization granulation water treatment equipment with regenerable crystal-inducing carrier according to claim 1, characterized in that: The bottom of the inner cylinder is in the shape of an inverted truncated cone, the water inlet pipe is connected to the inverted truncated cone-shaped bottom of the inner cylinder, and the water inlet pipe is provided with a check valve.

8. The crystallization granulation water treatment equipment with regenerable crystal inducing carrier according to claim 4, characterized in that: The regeneration reactor is coated with a layer of acid corrosion resistant coating.

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