Wastewater ultra-mixing and ultra-filtration treatment device and system

Abstract

The utility model provides a wastewater ultra-mixing and ultra-filtration treatment device and system, which comprises a vortex mixing mechanism, the vortex mixing mechanism comprises a first mixing pipeline and a second mixing pipeline which are communicated with each other, the first mixing pipeline is internally provided with a first high-pressure mixer, the second mixing pipeline is internally provided with a second high-pressure mixer, and the first high-pressure mixer and the second high-pressure mixer are communicated with each other; the wastewater and the medicament are secondarily mixed in the vortex mixing mechanism; the reaction tank comprises a slag scraping assembly, a release tank and a separation tank, the release tank and the separation tank are communicated with each other, the vortex mixing mechanism is communicated with the release tank, the slag scraping assembly is arranged at the upper end part of the separation tank, and a water outlet is formed in the side wall of the separation tank; and the ultrafiltration mechanism is connected with the water outlet. Compared with an existing water treatment device, the novel wastewater ultra-mixing and ultra-filtration treatment device and system have the remarkable advantages of being high in efficiency, good in effect, small in occupied area, low in civil engineering cost and the like, and the novel wastewater ultra-mixing and ultra-filtration treatment device and system have wide application prospects.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater ultramixing and ultrafiltration treatment device and system. Background Art

[0002] The coal chemical industry is one of the pillar industries in my country. However, it consumes a huge amount of water, produces a large amount of wastewater, has complex water composition, and has a high concentration of pollutants, which has caused great pressure on the environment. Therefore, water environment issues such as wastewater reuse and zero discharge have become a bottleneck restricting the development of the coal chemical industry.

[0003] The salty wastewater in the coal chemical industry includes drainage from process wastewater treatment systems, sewage from circulating water systems, sewage from desalted water stations, and boiler drainage, etc., which are characterized by high hardness, suspended solids, and total dissolved solids (TDS). The main processes for zero discharge of salty wastewater based on reuse include: pretreatment system (high-density sedimentation tank, V-type filter, multi-media filter, UF), reuse treatment system (RO), and concentrated brine zero discharge treatment system (HPRO, ED, NF, MVR).

[0004] The saline wastewater is first pre-treated to reduce the concentration of pollutants such as organic matter, hardness and turbidity in the water to meet the water quality requirements of the subsequent membrane system. After membrane concentration treatment, more than 75% of the recycled water can be reused, and the remaining 20% ​​to 30% of the brine is further concentrated and crystallized to achieve "zero discharge" treatment of wastewater.

[0005] However, the common process used in the pretreatment of coal chemical industry wastewater is: high-density sedimentation tank + V-type filter (multi-media filter) + self-cleaning filter + UF system. After the pretreatment system is processed, the organic matter, turbidity and hardness in the wastewater can be reduced to the water inlet requirements of the membrane system. However, the pretreatment system has the disadvantage of occupying a large area. In addition, the high-density sedimentation tank and V-type filter in its structure are mostly civil structures, occupying an area of ​​about 200-300m 2 / 10,000 tons of water, and the high civil engineering costs have greatly limited its scope of use. Summary of the invention

[0006] Therefore, the technical problem to be solved by the utility model is to overcome the problems of large floor space and high civil engineering costs in the prior art, and to provide a wastewater ultramixing and ultrafiltration treatment device and system.

[0007] In order to solve the above technical problems, the utility model provides a wastewater ultramixing and ultrafiltration treatment device, which includes: a vortex mixing mechanism, the vortex mixing mechanism includes a first mixing pipeline and a second mixing pipeline that are interconnected, a first high-pressure mixer is provided inside the first mixing pipeline, and a second high-pressure mixer is provided inside the second mixing pipeline, and wastewater and reagents are secondary mixed in the vortex mixing mechanism; a reaction tank, the reaction tank includes a scraping assembly and a release tank and a separation tank that are interconnected, the vortex mixing mechanism is connected to the release tank, the scraping assembly is arranged at the upper end of the separation tank, and the side wall of the separation tank is provided with a drain outlet; an ultrafiltration mechanism, the ultrafiltration mechanism is connected to the drain outlet.

[0008] In one embodiment of the present invention, the first mixing pipeline includes a wastewater input end and a first reagent input end, and the wastewater input end and the first reagent input end are arranged in sequence along the liquid flow direction.

[0009] In one embodiment of the present invention, the second mixing pipeline includes an output end and a second medicine input end, the second medicine input end and the output end are arranged in sequence along the liquid flow direction, and the output end extends into the release pool.

[0010] In one embodiment of the present invention, the first high-pressure mixer and the second high-pressure mixer are both configured as gas-liquid-solid three-phase mixers.

[0011] In one embodiment of the utility model, the vortex mixing mechanism extends into the lower middle portion of the release pool, and the top of the release pool is connected to the separation pool.

[0012] In one embodiment of the present invention, the separation tank further comprises a mud discharge port, and the mud discharge port is arranged at the bottom of the separation tank.

[0013] In one embodiment of the utility model, the scraping mechanism includes a carrying net, a scum outlet, a scum collecting assembly and at least one scraper, the scum outlet is arranged at one end of the carrying net, the scum collecting assembly is arranged outside the separation tank and is connected to the scum outlet, and at least one scraper is arranged in the carrying net and moves toward / away from the scum outlet.

[0014] In one embodiment of the present invention, the scum outlet is inclined from the bottom of the carrier net toward the scum collecting assembly.

[0015] In one embodiment of the utility model, at least one of the scrapers is connected to a driving device; and a slag discharge port is provided at the bottom of the slag collection assembly.

[0016] The utility model also provides a wastewater ultramixing and ultrafiltration treatment system, which comprises at least one of the above-mentioned wastewater ultramixing and ultrafiltration treatment devices.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The wastewater ultra-mixing ultrafiltration treatment device and system described in the utility model can perform secondary ultra-mixing of the treatment agent and the wastewater through a vortex mixing mechanism, so that the agent and the wastewater can be fully mixed within a few seconds, and the gas can be compressed and transmitted synchronously, thereby breaking through the traditional treatment effect and efficiency through a new gas dissolving method, so that the wastewater impurities form a solid-liquid-gas three-state mixed floccules in this process, and then the above-mentioned substances are released by dissolved gas in the release tank, and the water in the floccules is squeezed out and enters the separation tank. At this time, the flocculent impurities with small mass float to the scraping component and are discharged, and the flocculent impurities with large mass settle to the bottom of the separation tank, thereby realizing the wastewater ultra-mixing process, and then filtering through the ultrafiltration mechanism, thereby achieving the sewage purification effect. Compared with the existing water treatment device, the present application has the significant advantages of high efficiency, good effect, small footprint and low civil engineering cost, and is a new type of wastewater ultra-mixing ultra-filtration treatment device and system with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0020] Figure 1 It is a structural schematic diagram of a wastewater ultramixing and ultrafiltration treatment device in a preferred embodiment of the utility model.

[0021] Explanation of the reference numerals in the specification: 100, vortex mixing mechanism; 110, first mixing pipeline; 111, first high-pressure mixer; 112, wastewater input terminal; 113, first reagent input terminal; 120, second mixing pipeline; 121, second high-pressure mixer; 122, second reagent input terminal; 123, output terminal; 200, reaction tank; 210, release tank; 220, separation tank; 221, drain outlet; 222, mud discharge outlet; 300, scraper mechanism; 310, carrier net; 320, scraper; 330, scum outlet; 340, scum collecting assembly; 341, scum discharge outlet. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0023] Embodiment 1

[0024] See also Figure 1 As shown, this embodiment provides a wastewater ultramixing ultrafiltration treatment device, which includes: a vortex mixing mechanism 100, the vortex mixing mechanism 100 includes a first mixing pipeline 110 and a second mixing pipeline 120 that are interconnected, a first high-pressure mixer 111 is provided inside the first mixing pipeline 110, and a second high-pressure mixer 121 is provided inside the second mixing pipeline 120, and wastewater and reagents are secondary mixed in the vortex mixing mechanism 100; a reaction tank 200, the reaction tank 200 includes a scraping assembly and a release tank 210 and a separation tank 220 that are interconnected, the vortex mixing mechanism 100 is connected to the release tank 210, the scraping assembly is arranged at the upper end of the separation tank 220, and the side wall of the separation tank 220 is provided with a drain port 221; an ultrafiltration mechanism, the ultrafiltration mechanism is connected to the drain port 221.

[0025] The wastewater supermixing ultrafiltration treatment device described in the utility model performs secondary supermixing of the treatment agent and the wastewater through the vortex mixing mechanism 100, and can achieve full mixing of the agent and the wastewater within a few seconds, and can compress and transmit the gas synchronously, thereby breaking through the traditional treatment effect and efficiency through a new gas dissolving method, so that the wastewater impurities form a solid-liquid-gas three-state mixed floccules in this process, and then the above-mentioned substances are released by dissolving gas in the release tank 210, and the water in the floccules is squeezed out and enters the separation tank 220. At this time, the flocculent impurities with small mass float to the scraping component and are discharged, and the flocculent impurities with large mass settle to the bottom of the separation tank 220, thereby realizing the wastewater supermixing process, and then filtering through the ultrafiltration mechanism, thereby achieving the sewage purification effect. Compared with the existing water treatment device, the present application has the significant advantages of high efficiency, good effect, small footprint and low civil engineering cost, and is a new type of wastewater supermixing ultrafiltration treatment device with broad application prospects.

[0026] See also Figure 1As shown, the first mixing pipeline 110 includes a wastewater input end 112 and a first reagent input end 113, and the wastewater input end 112 and the first reagent input end 113 are arranged in sequence along the liquid flow direction. Correspondingly, the second mixing pipeline 120 includes an output end 123 and a second reagent input end 122, and the second reagent input end 122 and the output end 123 are arranged in sequence along the liquid flow direction, and the output end 123 extends into the release pool 210. Furthermore, the first high-pressure mixer 111 and the second high-pressure mixer 121 in this embodiment are both configured as gas-liquid-solid three-phase mixers. In this embodiment, the first high-pressure mixer 111 and the second high-pressure mixer 121 are both provided with a high-speed rotating mechanism. The liquid passing through the first high-pressure mixer 111 and the second high-pressure mixer 121 can rotate at high speed along the tube wall, and the rotation speed can reach 1000-2000r / mim. Based on this, the vortex mixing mechanism 100 can effectively improve the mixing treatment effect of sewage and treatment agents. At the same time, after the mixed liquid passes through the first high-pressure mixer 111 and the second high-pressure mixer 121, the pollutants, agents and bubbles break through the bubble size limit of traditional flotation through the extremely small contact method, thereby greatly improving the reaction rate and removal efficiency. In addition, in this application, the contact time between the agent and the sewage is prolonged by the first mixing pipeline 110 and the second mixing pipeline 120, and the contact and mixing of the agent and the sewage are further ensured by two dosings.

[0027] See also Figure 1 As shown, in this embodiment, the vortex mixing mechanism 100 extends into the lower middle part of the release pool 210, and the top of the release pool 210 is connected to the separation pool 220. Specifically, since the liquid released in the release pool 210 is released from a high pressure state in a short time, the dissolved gas will adhere to the pollutants to form countless flocs, and as the bubbles and flocs continue to merge and collide, the flocs form sponge-like floc particles, and then, as the pressure continues to decrease, the bubbles continue to expand, so that the bubbles can greatly reduce the low water content in the flocs by squeezing the water in the flocs.

[0028] In this embodiment, the upper part of the release tank 210 is connected to the reaction tank 200, and the purified water and a large amount of flocs enter the reaction tank 200 with smaller water flow fluctuations. The flocs and impurity particles with larger mass will settle to the bottom of the reaction tank 200 under the action of gravity and continue to accumulate. Furthermore, the separation tank 220 also includes a mud discharge port 222, and the mud discharge port 222 is arranged at the bottom of the separation tank 220. The operator can regularly discharge and clean the impurities deposited in the reaction tank 200 through the mud discharge port 222 to ensure the continuous use of the device.

[0029] On the contrary, the lighter impurity flocs will float on the top of the reaction tank 200, enter the scraper mechanism 300 under the impact of the water flow, and adhere to the surface of the carrier net 310. When they accumulate to a certain extent, the scraper mechanism 300 needs to be cleaned. For details, see Figure 1 As shown, the scraping mechanism 300 includes a carrying net 310, a scum outlet 330, a scum collecting assembly 340 and at least one scraper 320, the scum outlet 330 is arranged at one end of the carrying net 310, the scum collecting assembly 340 is arranged outside the separation tank 220 and is connected to the scum outlet 330, at least one scraper 320 is arranged in the carrying net 310, and moves toward / away from the scum outlet 330, further, at least one scraper 320 is connected to a driving device; in this embodiment, the scraper 320 moves along the carrying net 310 under the driving action of the driving device to push the flocs accumulated on the carrying net 310 toward the scum outlet 330, specifically, the scum outlet 330 in this embodiment is inclined from the bottom of the carrying net 310 toward the scum collecting assembly 340, thereby facilitating the guidance of the scum collection process, and the utility model does not specifically limit the specific type of driving device. In addition, a slag discharge port 341 is provided at the bottom of the slag collecting assembly 340 in this embodiment, thereby enabling slag to be recovered without disassembling the slag collecting assembly 340 .

[0030] In this embodiment, after the above-mentioned supermixing process, the water discharged from the drain outlet 221 is further subjected to ultrafiltration processing, thereby realizing a complete sewage purification process. The combination of supermixing processing and ultrafiltration processing can significantly improve the sewage purification effect, while greatly reducing the space occupied by traditional water purification processing.

[0031] Embodiment 2

[0032] This embodiment provides a wastewater ultramixing and ultrafiltration treatment system, which includes at least one wastewater ultramixing and ultrafiltration treatment device described in the first embodiment.

[0033] In summary, the wastewater ultra-mixing ultrafiltration treatment device and system described in the utility model can perform secondary ultra-mixing of the treatment agent and the wastewater through the vortex mixing mechanism 100, so that the agent and the wastewater can be fully mixed within a few seconds, and the gas can be compressed and transmitted synchronously, thereby breaking through the traditional treatment effect and efficiency through a new gas dissolving method, so that the wastewater impurities form a solid-liquid-gas three-state mixed floccules in this process, and then the above-mentioned substances are released by dissolving gas in the release tank 210, and the water in the floccules is squeezed out and enters the separation tank 220. At this time, the flocculent impurities with small mass float to the scraping component and are discharged, and the flocculent impurities with large mass settle to the bottom of the separation tank 220, thereby realizing the wastewater ultra-mixing process, and then filtering through the ultrafiltration mechanism, thereby achieving the sewage purification effect. Compared with the existing water treatment device, the present application has the significant advantages of high efficiency, good effect, small footprint and low civil engineering cost, and is a new type of wastewater ultra-mixing ultra-filtration treatment device and system with broad application prospects.

[0034] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A wastewater ultramixing and ultrafiltration treatment device, characterized in that: include: A vortex mixing mechanism, the vortex mixing mechanism comprising a first mixing pipeline and a second mixing pipeline which are interconnected, a first high-pressure mixer is provided inside the first mixing pipeline, a second high-pressure mixer is provided inside the second mixing pipeline, and wastewater and medicine are secondary mixed in the vortex mixing mechanism; A reaction tank, the reaction tank comprising a scraping assembly and a release tank and a separation tank that are interconnected, the vortex mixing mechanism is connected to the release tank, the scraping assembly is arranged at the upper end of the separation tank, and a drainage port is arranged on the side wall of the separation tank; An ultrafiltration mechanism is connected to the drain port.

2. The wastewater ultramixing ultrafiltration treatment device according to claim 1, characterized in that: The first mixing pipeline includes a wastewater input end and a first reagent input end, and the wastewater input end and the first reagent input end are arranged in sequence along the liquid flow direction.

3. The wastewater ultramixing ultrafiltration treatment device according to claim 1, characterized in that: The second mixing pipeline includes an output end and a second medicine input end, the second medicine input end and the output end are arranged in sequence along the liquid flow direction, and the output end extends into the release pool.

4. The wastewater ultramixing ultrafiltration treatment device according to claim 1, characterized in that: The first high-pressure mixer and the second high-pressure mixer are both configured as gas-liquid-solid three-phase mixers.

5. The wastewater ultramixing ultrafiltration treatment device according to claim 1, characterized in that: The vortex mixing mechanism extends into the lower middle part of the release pool, and the top of the release pool is connected with the separation pool.

6. The wastewater ultramixing ultrafiltration treatment device according to claim 1, characterized in that: The separation tank further comprises a mud discharge port, and the mud discharge port is arranged at the bottom of the separation tank.

7. The wastewater ultramixing ultrafiltration treatment device according to claim 1, characterized in that: The scraping mechanism includes a carrying net, a scum outlet, a scum collecting assembly and at least one scraper. The scum outlet is arranged at one end of the carrying net, the scum collecting assembly is arranged outside the separation tank and is connected with the scum outlet, and at least one scraper is arranged in the carrying net and moves toward / away from the scum outlet.

8. The wastewater ultramixing ultrafiltration treatment device according to claim 7, characterized in that: The scum outlet is inclined from the bottom of the carrier net toward the scum collecting assembly.

9. The wastewater ultramixing ultrafiltration treatment device according to claim 7, characterized in that: At least one of the scrapers is connected to a driving device; and a slag discharge port is provided at the bottom of the slag collecting assembly.

10. A wastewater ultramixing and ultrafiltration treatment system, characterized in that: It comprises at least one wastewater ultramixing ultrafiltration treatment device as described in any one of claims 1 to 9.

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