CN210457561U

CN210457561U - High-efficient solid-liquid separation system of waste water breeds

Info

Publication number: CN210457561U
Application number: CN201920913006.6U
Authority: CN
Inventors: 钟文毅
Original assignee: HUNAN DINGZHONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: HUNAN DINGZHONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-05
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a high-efficiency solid-liquid separation system for aquaculture wastewater, which comprises a water inlet pump, a vortex mixer group, a quick floating pond, a slag scraping machine, a medicament adding device, a high-pressure gas supply device and a sludge hopper; the vortex mixer group comprises N vortex mixers which are sequentially connected in series; the first vortex mixer is connected with the water inlet pump and the high-pressure gas supply device, and the last vortex mixer is connected with the quick floating pool; the slag scraper is arranged at the top of the quick floating pool; the slag scraper is connected with the sludge hopper; the second vortex mixer is connected with the medicament adding device; the vortex mixer comprises a shell and a hollow core body positioned in the shell, and a sealed annular cavity is formed between the hollow core body and the shell; the hollow core body is provided with a plurality of hole groups at intervals along the length direction; the set of holes includes a plurality of holes disposed along a circumference of the hollow core. The utility model discloses area is little, and solid-liquid separation is effectual.

Description

High-efficient solid-liquid separation system of waste water breeds

Technical Field

The utility model belongs to the technical field of waste water treatment equipment technique and specifically relates to a breed high-efficient solid-liquid separation system of waste water is related to.

Background

With the improvement of the living standard of people, the livestock and poultry breeding industry in China is developed rapidly, but the problem of environmental pollution brought by livestock and poultry breeding wastewater is increasingly prominent. The current livestock and poultry breeding wastewater is the third pollution source after industrial wastewater and domestic sewage. Therefore, how to treat the livestock and poultry breeding pollutants in a large scale becomes an urgent problem to be solved. The existing farm wastewater treatment can involve solid-liquid separation treatment of wastewater and sludge dehydration treatment for separating solid and liquid in sludge, but the prior art generally has the problem of poor solid-liquid separation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art, and providing a high-efficiency solid-liquid separation system for aquaculture wastewater, which occupies small area and has good solid-liquid separation effect. In order to realize the aim, the utility model provides a high-efficiency solid-liquid separation system for aquaculture wastewater, which comprises a water inlet pump, a vortex mixer group, a quick floating pond, a slag scraper, a medicament feeding device, a high-pressure gas supply device and a sludge hopper;

the vortex mixer group comprises N vortex mixers which are sequentially connected in series, and the pressure in the N vortex mixers is gradually reduced from a water inlet to a water outlet of the vortex mixer group; n is more than or equal to 2 and is a natural number;

the first vortex mixer is connected with the water inlet pump and the high-pressure gas supply device, and the last vortex mixer is connected with the quick floating pool; the slag scraper is arranged at the top of the quick floating pool; the slag scraper is connected with the sludge hopper; the second vortex mixer is connected with the medicament adding device;

the vortex mixer comprises a shell and a hollow core body positioned in the shell, and a sealed annular cavity is formed between the hollow core body and the shell; the hollow core body is provided with a plurality of hole groups at intervals along the length direction; the hole set comprises a plurality of holes arranged along the circumference of the hollow core; the water flow through the set of holes forming a vortex;

the side of the shell is provided with a water inlet pipe communicated with the annular cavity, the upper part of the shell is provided with a gas pipe communicated with the inside of the hollow core body, and the lower part of the shell is provided with a water outlet pipe communicated with the inside of the hollow core body.

Further, the sludge reflux pump is connected with the sludge hopper; a liquid level switch is arranged in the sludge hopper.

Further, the high-pressure gas supply device comprises a sliding vane compressor connected with the first vortex mixer.

Further, the medicament adding device comprises a medicament adding pump connected with the second vortex mixer.

Further, the high-pressure gas supply device is connected with a second vortex mixer.

Further, N is more than or equal to 3, and the medicament adding device is connected with a third vortex mixer.

Further, the holes are threaded holes; the vortex mixer further comprises an inner hexagonal thread plug matched with the threaded hole.

Further, the shell is provided with an inner groove corresponding to the hole along the length direction.

Furthermore, the cross section of the inner groove is of an L-shaped structure, one groove edge of the inner groove is perpendicular to the central axis of the hole, and the other groove edge of the inner groove is parallel to the central axis of the hole.

The utility model has the advantages that: the utility model discloses a bubble adhesion is as the carrier on the suspended solid, forms the gas-solid mixture that density ratio water is light, floats to the surface of water on to make suspended solid impurity and separation of water, then scrape into the sludge bucket with scraping the sediment machine with the dross, the clear water is then followed and is floated pond bottom of the pool discharge soon. The utility model discloses a vortex mixer group realizes gas, solid, liquid three-phase mixes, and N pressure in the vortex mixer of establishing ties mutually in proper order is steadilyd decrease one by one to the delivery port by vortex mixer group water inlet, countless micro bubble is grown with peripheral formation crystal nucleus in floc inside, along with pressure reduction, the bubble can expand rapidly in floc inside, extrude the moisture in the floc, gas and solid floc form porous cavity form, the moisture content is showing to reduce self proportion more and more light simultaneously, can not come up by oneself with the help of external force, accomplish solid-liquid separation. The technology realizes the innovation of floe floating, omits the existing water dissolving equipment, a circulating water system and a slow and low-efficiency bubble attaching process, realizes unprecedented scum removing efficiency and system simplification, and saves the occupied area. Simultaneously the utility model discloses under the effect of vortex mixer group, can effectively extend the flocculating agent molecular chain, stretch long chain molecule form for the coiled form with the flocculating agent molecule is original, make the pollutant capture ability of flocculating agent improve tens of times, provide complete abundant flocculating agent mixing function with the help of the vortex, the efficiency that the pollutant was caught by the flocculating agent molecular chain is close 100% to the realization is with a large amount of waste water of few flocculating agent consumption processing. The utility model discloses because flocculating agent, pollutant, high-pressure gas combine closely, the moisture content is low at the vortex reaction in-process, after last float formation dross, about 80% of dross moisture content is convenient for store and mummification.

The utility model discloses form annular cavity between vortex mixer's casing and the cavity core, mix in high-pressure gas's high-pressure waste water carries to first vortex mixer's annular cavity, inside the hole entering cavity core on the group of the multiple holes of rethread, can make high-pressure sewage pressure increase, the velocity of flow accelerates, and at the inside vortex that forms of cavity core, mix fully fast, form high-pressure dissolved gas liquid, after carry again and mix with the flocculating agent in second vortex mixer's the annular cavity, and can produce more bubbles after reducing the quick release along with vortex mixer internal pressure, reinforcing waste water purifying effect, and the efficiency of wastewater treatment is improved. The utility model discloses low carbon environmental protection, the input cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a perspective view of the vortex mixer of the present invention.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is a perspective view of the hollow core of the present invention.

Fig. 5 is a cross-sectional view of fig. 4.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

As shown in fig. 1 to 5, the efficient solid-liquid separation system for aquaculture wastewater provided by the embodiment comprises a water inlet pump 2, a vortex mixer group, a floating pond 8, a slag scraper 5, a medicament adding device, a high-pressure gas supply device and a sludge hopper 6.

The vortex mixer group comprises N vortex mixers 1 which are sequentially connected in series, and the pressure in the N vortex mixers 1 is gradually reduced from a water inlet to a water outlet of the vortex mixer group; n is more than or equal to 2 and is a natural number; that is, the pressure in the first vortex mixer 1 is the highest (about 0.8Mpa), and the pressures in the subsequent vortex mixers 1 are gradually decreased (e.g., 0.7Mpa, 0.6Mpa, 0.5Mpa, and 0.4 Mpa). As shown in fig. 1, the pressures in the four vortex mixers 1 are gradually decreased from right to left.

The first vortex mixer 1 is connected with the water inlet pump 2 and a high-pressure gas supply device, and the last vortex mixer 1 is connected with the quick floating pool 8; the top of the quick floating pool 8 is provided with the slag scraper 5; the slag scraper 5 is connected with the sludge hopper 6; the second vortex mixer 1 is connected with the medicament adding device; in the present embodiment, the high-pressure gas supply device includes a vane compressor 3 connected to the first vortex mixer 1. In this embodiment, the drug adding apparatus comprises a drug adding pump 4 connected to the second vortex mixer 1, wherein the adding pressure of the drug adding pump 4 is slightly greater than the pressure in the second vortex mixer 1. In the present embodiment, the high-pressure gas supply device is connected to the second vortex mixer 1. Namely, high-pressure gas is introduced into both the first vortex mixer 1 and the second vortex mixer 1.

As shown in fig. 2 to 5, the vortex mixer 1 comprises a housing 10 and a hollow core 14 located inside the housing 10, wherein a sealed annular cavity 1010 is formed between the hollow core 14 and the housing 10; the hollow core body 14 is provided with a plurality of hole groups at intervals along the length direction; the set of holes comprises a plurality of holes 140 disposed along the circumference of the hollow core 14; the water flow through the set of holes forming a vortex; in the present embodiment, the plurality of hole 1 groups are disposed at equal intervals along the length direction of the hollow core 14, and the plurality of holes 140 included in the hole groups are disposed uniformly along the circumference of the hollow core 14. In this embodiment, the water flow passing through the hole set forms a vortex, and the specific form of the hole set may be: the central axis of the hole 140 is parallel to the radial plane of the hollow core 14, and intersects the circumferential surface of the inner wall of the hollow core 14 at a virtual intersection point, and an included angle a between a tangent line of the circumferential surface of the inner wall of the hollow core 14 at the virtual intersection point and the central axis of the hole 140 is 55 ° to 85 °. In this embodiment, the housing 10 and the hollow core 14 may be an integrated structure or a split structure, specifically, the housing 10 includes a sleeve 101 and covers 102 disposed at two ends of the sleeve 101, the hollow core 14 is located in the sleeve 101, and the two ends of the hollow core 14 are sealed by the covers 102 and the hollow core 14 through O-rings 103.

The shell 10 is provided with a water inlet pipe 11 communicated with the annular cavity 1010 on the side, a gas pipe 12 communicated with the hollow core 14 on the upper part, and a water outlet pipe 13 communicated with the hollow core 14 on the lower part. Between two adjacent vortex mixers 1, the water outlet pipe 13 of the front vortex mixer 1 is connected with the water inlet pipe 11 of the rear vortex mixer 1; a gas pipe 12 of the vortex mixer 1 into which high-pressure gas is added is connected with the sliding vane compressor 3; the water inlet pipe 11 of the vortex mixer 1 to be added with the flocculating agent is connected with the medicament adding pump 4. The gas pipe 12 on the vortex mixer 1, to which high-pressure gas is not added, is sealed with a sealing device. In this embodiment, the water inlet pipe 11, the gas pipe 12, the water outlet pipe 13 and the housing 10 may be integrally manufactured, or may be fixedly connected to each other by welding or the like.

The utility model discloses a vortex mixer group realizes that gas, solid, liquid three-phase mix, and N is pressure in the vortex mixer 1 of establishing ties mutually in proper order is steadilyd decrease one by one to the delivery port by vortex mixer group water inlet, countless micro bubble is grown at floc inside and peripheral formation crystal nucleus, along with pressure reduction, the bubble can expand rapidly in floc inside, extrude the moisture in the floc, gas and solid floc form porous hollow form, the moisture content is showing to reduce self proportion more and more light simultaneously, can not come up by oneself with the help of external force. The technology realizes the innovation of floe floating, omits the existing water dissolving equipment, a circulating water system and a slow and low-efficiency bubble attaching process, realizes unprecedented scum removing efficiency and system simplification, and saves the occupied area.

In the embodiment, under the action of the vortex mixer group, the molecular chains of the flocculating agent can be effectively stretched, the flocculating agent molecules are initially coiled and stretched into long chain molecular shapes, so that the pollutant capture capacity of the flocculating agent is improved by tens of times, a completely sufficient flocculating agent mixing function is provided by virtue of vortex, the efficiency of capturing the pollutants by the molecular chains of the flocculating agent is close to 100%, and thus, a large amount of wastewater is treated with extremely low consumption of the flocculating agent.

In the embodiment, the flocculant, the pollutant and the high-pressure gas are tightly combined and have low water content in the vortex reaction process, so that after the scum is formed by floating upwards, the water content of the scum is about 80 percent, and the scum is convenient to store and dry.

In the embodiment, bubbles are adhered to the suspended matters to serve as carriers, so that a gas-solid mixture with density lower than that of water is formed and floats to the water surface, suspended matter impurities are separated from water, then scum is scraped into a sludge hopper by a scum scraper 5, and clear water is discharged from the bottom of a quick floating pond 8.

Form annular cavity 1010 between vortex mixer 1's casing 10 and the hollow core 14 in this embodiment, mix high-pressure gas's high-pressure waste water and carry to in the annular cavity 1010 of first vortex mixer 1, inside the hole 140 entering hollow core 14 on the many pore groups again, can make high-pressure sewage pressure increase, the velocity of flow increases, and at the inside vortex that forms of hollow core 14, mix fast abundant, form high-pressure solution gas, carry again afterwards to mix with the flocculating agent in the annular cavity 1010 of second vortex mixer 1, and can produce more bubbles after the pressure reduces quick release along with vortex mixer 1, reinforcing waste water purifying effect, improve waste water treatment efficiency. The vortex mixer of the embodiment is low-carbon and environment-friendly, and has low input cost.

In the embodiment, the high-efficiency solid-liquid separation system for the aquaculture wastewater further comprises a sludge reflux pump 7 connected with the sludge hopper 5; a liquid level switch is arranged in the sludge hopper 6. Scum in the sludge hopper 5 is output through the sludge delivery pump 7, and the liquid level of the scum in the sludge hopper 6 is detected through a liquid level switch so as to control the start and stop of the sludge delivery pump 7.

In the embodiment, N is more than or equal to 3, and the medicament adding device is connected with the third vortex mixer 1. The principle of the present embodiment is illustrated by way of example in fig. 1, where N = 4: the wastewater in the regulating tank is pressurized by a water inlet pump 2 and then is conveyed to a first vortex mixer 1 together with high-pressure gas supplied by a high-pressure air supply device to form a vortex, the high-pressure wastewater and the high-pressure gas are fully mixed to form high-pressure dissolved gas and liquid, and then are conveyed to a second vortex mixer 1 to form a vortex, meanwhile, a water inlet pipe 11 of the second vortex mixer 1 is connected with a medicament adding device, a gas pipe 12 is connected with the high-pressure air supply device, and three-phase full mixing of a flocculating agent and pollutant particles (solid), water and gas is realized in the second vortex mixer 1; then the mixture is conveyed to a third vortex mixer 1, a flocculating agent is further added, the mixture is fully mixed again, and then the mixture is further conveyed to a fourth vortex mixer 1 and falls into a quick floating pool 8 after being mixed. In the embodiment, under the action of four vortex mixers 1, the pressure is gradually decreased, numerous micro bubbles generate crystal nucleus growth in and around the floc, medicament molecules are stretched from an initial coiled shape to a long-chain molecular shape, and along with the reduction of the pressure, the bubbles can rapidly expand in the floc to extrude the moisture in the floc, gas and solid floc form a porous hollow shape, the water content is obviously reduced, the specific gravity of the gas and solid floc is lighter, the gas and solid floc can automatically float upwards in a quick floating pond without external force, and then a scum scraper automatically removes scum; the scum is sent into a sludge hopper to be collected, and the clear water is discharged from the bottom of the quick floating tank.

In this embodiment, the hole 140 is a threaded hole; the vortex mixer 1 further comprises an inner hexagonal thread plug matched with the threaded hole, so that the corresponding hole 140 is plugged by the inner hexagonal thread plug, the number of holes which can pass through high-pressure wastewater on the hollow core body 14 is adjusted, the wastewater pressure entering the hollow core body 14 is adjusted, and the adjustability and the operability are higher.

In this embodiment, the housing 14 is provided with an inner groove 141 corresponding to the hole 140 in the longitudinal direction. In this embodiment, the cross section of the inner groove 141 is an L-shaped structure, one groove side of the inner groove 141 is perpendicular to the central axis of the hole 140, the other groove side is parallel to the central axis of the hole 140, and the groove side of the inner groove 141 and the circumference of the outer wall of the hollow core 14 form an arc transition. The design of the inner groove 141 in this embodiment not only facilitates the processing of each hole 140, reduces the processing cost, but also facilitates the improvement of the drawing force for drawing the flocculant molecules into long-chain molecular shapes, thereby realizing the effective and rapid drawing of the flocculant molecules.

In this embodiment, between inlet pump 2 and the inlet tube 11 of vortex mixer 1, between sliding vane compressor 3 and the gas pipe 12 of vortex mixer 1, between inlet tube 11 and outlet pipe 13 of vortex mixer 1, between crowded pump 4 of throwing of medicine and the inlet tube 11 of vortex mixer 1, etc. there are two connections of material transmission, and the centre adopts the pipeline to link up, still is equipped with the valve on some pipelines of course, and this is current conventional technology, so do not do too much to describe again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An efficient solid-liquid separation system for aquaculture wastewater is characterized by comprising a water inlet pump, a vortex mixer group, a quick floating pond, a slag scraping machine, a medicament adding device, a high-pressure gas supply device and a sludge hopper;

2. The high-efficiency solid-liquid separation system for aquaculture wastewater as claimed in claim 1, further comprising a sludge reflux pump connected with the sludge hopper; a liquid level switch is arranged in the sludge hopper.

3. The high-efficiency solid-liquid separation system for aquaculture wastewater as claimed in claim 1, wherein the high-pressure gas supply device comprises a sliding vane compressor connected with the first vortex mixer.

4. The system for efficiently separating the solid from the liquid in the aquaculture wastewater as recited in claim 1, wherein the chemical adding device comprises a chemical adding pump connected to the second vortex mixer.

5. The high-efficiency solid-liquid separation system for aquaculture wastewater as claimed in claim 1, wherein the high-pressure gas supply device is connected with the second vortex mixer.

6. The efficient solid-liquid separation system for aquaculture wastewater according to claim 1, wherein N is greater than or equal to 3, and the agent adding device is connected with a third vortex mixer.

7. The high-efficiency solid-liquid separation system for aquaculture wastewater as claimed in claim 1, wherein the holes are threaded holes; the vortex mixer further comprises an inner hexagonal thread plug matched with the threaded hole.

8. The efficient solid-liquid separation system for aquaculture wastewater as recited in claim 1, wherein the housing has an inner groove corresponding to the hole along the length direction.

9. The efficient solid-liquid separation system for aquaculture wastewater as recited in claim 8, wherein the cross section of the inner groove is of an L-shaped structure, one groove side of the inner groove is perpendicular to the central axis of the hole, and the other groove side of the inner groove is parallel to the central axis of the hole.