CN213943506U

CN213943506U - Separating device for micro-plastic

Info

Publication number: CN213943506U
Application number: CN202021695311.1U
Authority: CN
Inventors: 王辉; 庄利生; 王耀良; 宋雪; 石建娅
Original assignee: Shenzhen Zhonglv Environment Group Co ltd
Current assignee: Shenzhen Zhonglv Environment Group Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-08-13
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to an environmental ecology technical field specifically is a separator of little plastics, including main part and motor, one side of main part is provided with the vacuum suction filtration pump, the left side of vacuum suction filtration pump is provided with the double screen storehouse, the upper end surface in double screen storehouse is inserted and is equipped with the peristaltic pump, the last fixed surface of vacuum suction filtration pump is connected with the motor, the bottom surface mounting of motor has the shock mount. The utility model discloses in, through the riddle storehouse that sets up, the flotation separation storehouse, the preliminary screening storehouse, preliminary screening storehouse and vacuum suction filtration pump can make the peristaltic pump communicate it for can carry out liquid transportation to it through the peristaltic pump, through the preliminary screening storehouse, the filtration screening layer upon layer in flotation separation storehouse and the riddle storehouse, make the micro-plastic in last soil or the deposit can effectually filter, through the device of design, can realize the high-efficient, simple and convenient separation of micro-plastic in soil or the deposit sample.

Description

Separating device for micro-plastic

Technical Field

The utility model relates to an environmental ecology technical field specifically is a separator of little plastics.

Background

Plastics are widely used in daily life, and can be transported in a long distance due to the difficult degradability, and plastic fragments or micro-plastics remained in the environment can be further cracked into smaller particles through physical and chemical weathering. Once the plastic decomposes into micro-plastics, the physical and photo-degradation effects are diminished, resulting in a continuous enrichment in the soil or sediment, which can exist in the environment for hundreds of years to thousands of years. Thus, micro-plastics have been gaining increasing attention as a class of persistent environmental pollutants, and in particular, micro-plastics (<5mm) in marine and coastal environments have been receiving increasing attention at home and abroad in recent years as a new type of pollutant. Because of its small size, large quantity, wide distribution and easy ingestion by organisms such as marine fish, shellfish, etc., it constitutes an ecological risk. The separation of the micro-plastics in soil or sediment samples is significantly different from the separation of the micro-plastics in water samples, and the separation procedure and steps are more complicated due to the existence of solid media such as soil, so that how to separate and identify the micro-plastics from the large amount of samples becomes an important basis for carrying out the research.

At present, the method of density separation is usually adopted, for example, a saturated sodium chloride solution, a sodium tungstate solution or seawater is adopted to separate the micro-plastics in the soil sample, and the traditional method of soaking separation according to the density principle has the disadvantages of complicated procedure, troublesome operation, time consumption, labor consumption and low efficiency, so that the micro-plastics are more complicated when being separated, and the separation efficiency is seriously influenced, so that the problem needs to be solved by designing a micro-plastics separating device urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a separator of little plastics to current separation method who proposes in solving above-mentioned background art soaks the method procedure of separation according to the density principle loaded down with trivial details, troublesome poeration, consuming time and wasting force and the problem that efficiency is not high.

In order to achieve the above object, the utility model provides a following technical scheme: a separation device for micro-plastics comprises a main body and a motor, wherein a vacuum pumping and filtering pump is arranged on one side of the main body, a re-screening bin is arranged on the left side of the vacuum pumping and filtering pump, a peristaltic pump is inserted into the outer surface of the upper end of the re-screening bin, a motor is fixedly connected with the upper surface of the vacuum pumping and filtering pump, a shock absorption seat is installed on the outer surface of the bottom end of the motor, a conical bottle is arranged on the left side of the vacuum pumping and filtering pump, a sealing ring is arranged above the conical bottle, a filtering cup is arranged on the upper surface of the sealing ring, a filtering membrane is arranged on the outer surface of the bottom end of the filtering cup, the re-screening bin is fixedly connected with the filtering cup through the peristaltic pump, a flotation separation bin is fixedly connected with one end of the peristaltic pump, a pretreatment bin is arranged on the left side of the flotation separation bin, an ultrasonic oscillator is installed in the pretreatment bin, a primary screening bin is installed on the left side of the pretreatment bin, and a screen mesh is inserted into the inner surface of the primary screening bin, the top surface mounting in prescreening storehouse has the feeding storehouse, the shock attenuation seat includes the base, base fixed connection is at the upper end surface of vacuum filtration pump, the outer fixed surface of upper end of base is connected with the sleeve, telescopic surface cover is equipped with the pressure spring, telescopic internal surface is inserted and is equipped with the slide bar, the top welding of pressure spring has the strengthening rib.

Preferably, the sleeve is fixedly connected to the outer surface of the bottom of the base through a screw, the sliding rod is connected with the sleeve in a sliding mode, the bottom end of the reinforcing rib is fixedly connected to the outer surface of the upper end of the pressure spring, and the top end of the reinforcing rib is fixedly connected to the outer surface of the bottom of the motor through a connecting seat.

Preferably, the peristaltic pump is inserted and is established at the top surface in riddling storehouse, flotation separation storehouse, preliminary screening storehouse and prescreening storehouse, the riddling storehouse is connected with vacuum filtration pump UNICOM through the peristaltic pump, the erlenmeyer flask is connected with vacuum filtration pump UNICOM through the peristaltic pump.

Preferably, the sealing ring comprises a first sealing plate, the upper surface of the first sealing plate is connected with a rubber gasket, the upper surface of the rubber gasket is connected with a second sealing plate, a fastening bolt is inserted into the outer surface of the second sealing plate, the fastening bolt penetrates through the outer surfaces of the first sealing plate and the second sealing plate, and the outer surface of the rubber gasket is a rubber ring with an elastic structure.

Preferably, the screen mesh comprises a mesh body, the outer surface of the mesh body is provided with screen holes, the outer surfaces of the periphery of the mesh body are fixedly connected with mounting bolts, and the outer surface of the top end of the mesh body is fixedly provided with a handle.

Preferably, the outer surfaces of the sieve holes are square, the handles are fixedly connected to the outer surface of the top end of the net body through screws, and four groups of mounting bolts are arranged.

Compared with the prior art, the beneficial effects of the utility model are that: the collection device for the micro-plastic can realize efficient and simple separation of the micro-plastic in the sediment sample by designing or building a simple device.

1. Through the rescreen storehouse, the flotation separation storehouse that sets up, the preliminary screening storehouse, preliminary screening storehouse and vacuum suction filtration pump can make the peristaltic pump communicate it for can carry out the liquid transportation to it through the peristaltic pump, through the filtering screening layer upon layer in preliminary screening storehouse, the pretreatment storehouse, the flotation separation storehouse and the rescreen storehouse, make the micro-plastic in the soil at last can effectually filter, through the device of design, can realize the high-efficient, simple and convenient separation to micro-plastic in soil or the deposit sample.

2. The motor can have the absorbing effect when carrying out the during operation through the pressure spring that sets up, and when the motor at the during operation, it is too big to produce the noise that resonance leads to the motor between its bottom and the mounting panel, establishes through slide bar and telescopic cover and stretches out and draws back for the shock attenuation seat is whole to alleviate resonance time stability stronger to the motor, makes the practicality of device stronger, and then has improved the separation rate of device to little plastics.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is a schematic top view of the shock mount of FIG. 1 according to the present invention;

FIG. 3 is a schematic top view of the screen panel of FIG. 1 according to the present invention;

fig. 4 is a schematic front view of the seal ring of fig. 1 according to the present invention.

In the figure: 1. a main body; 2. a vacuum suction filtration pump; 3. re-screening the bin; 4. a peristaltic pump; 5. a motor; 6. a shock absorbing seat; 601. a base; 602. a sleeve; 603. a pressure spring; 604. a slide bar; 605. reinforcing ribs; 7. A conical flask; 8. a seal ring; 801. a first sealing plate; 802. a second sealing plate; 803. a rubber gasket; 804. fastening a bolt; 9. a flotation separation bin; 10. a pretreatment bin; 11. an ultrasonic oscillator; 12. Primary screening a bin; 13. screening a screen; 131. a net body; 132. screening holes; 133. installing a bolt; 134. a handle; 14. a feeding bin; 15. a filter bowl.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the device comprises a main body 1 and a motor 5, wherein a vacuum filtration pump 2 is arranged on one side of the main body 1, a re-screening chamber 3 is arranged on the left side of the vacuum filtration pump 2, a peristaltic pump 4 is inserted on the outer surface of the upper end of the re-screening chamber 3, the motor 5 is fixedly connected with the upper surface of the vacuum filtration pump 2, a shock absorption seat 6 is arranged on the outer surface of the bottom end of the motor 5, a conical flask 7 is arranged on the left side of the vacuum filtration pump 2, a sealing ring 8 is arranged above the conical flask 7, a filter cup 15 is arranged on the upper surface of the sealing ring 8, a filter membrane is arranged on the outer surface of the bottom end of the filter cup 15, the re-screening chamber 3 is fixedly connected with the filter cup 15 through the peristaltic pump 4, a flotation separation chamber 9 is fixedly connected with one end of the peristaltic pump 4, a pretreatment chamber 10 is arranged on the left side of the flotation separation chamber 9, an ultrasonic oscillator 11 is arranged on the pretreatment chamber 10, a primary screening chamber 12 is arranged on the left side of the pretreatment chamber 10, a screen 13 is inserted in the inner surface of the primary screening chamber 12, the feeding bin 14 is installed on the outer surface of the top end of the primary screening bin 12, the shock absorption seat 6 comprises a base 601, the base 601 is fixedly connected to the outer surface of the upper end of the vacuum pumping and filtering pump 2, a sleeve 602 is fixedly connected to the outer surface of the upper end of the base 601, a pressure spring 603 is sleeved on the outer surface of the sleeve 602, a sliding rod 604 is inserted into the inner surface of the sleeve 602, a reinforcing rib 605 is welded on the top end of the pressure spring 603, the sleeve 602 is fixedly connected to the outer surface of the bottom of the base 601 through screws, the sliding rod 604 is slidably connected with the sleeve 602, the bottom end of the reinforcing rib 605 is fixedly connected to the outer surface of the upper end of the pressure spring 603, the top end of the reinforcing rib 605 is fixedly connected to the outer surface of the bottom of the motor 5 through a connecting seat, when the motor 5 works, the motor 5 vibrates, and then the shock absorption is carried out through the pressure spring 603, so that the resonance generated by the motor 5 can be reduced after the work, and further, noise generated by resonance when the device works can be reduced.

Further, a peristaltic pump 4 is inserted in the top outer surfaces of the re-screening bin 3, the flotation separation bin 9, the pretreatment bin 10 and the primary screening bin 12, the re-screening bin 3 is connected with the vacuum filtration pump 2 through the peristaltic pump 4, a conical flask 7 is connected with the vacuum filtration pump 2 through the peristaltic pump 4, the sealing ring 8 comprises a first sealing plate 801, the upper surface of the first sealing plate 801 is connected with a rubber gasket 803, the upper surface of the rubber gasket 803 is connected with a second sealing plate 802, a fastening bolt 804 is inserted in the outer surface of the second sealing plate 802, the fastening bolt 804 penetrates through the outer surfaces of the first sealing plate 801 and the second sealing plate 802, the outer surface of the rubber gasket 803 is a rubber ring with an elastic structure, when the conical flask 7 is installed, the sealing performance between the first sealing plate 801 and the second sealing plate 802 is stronger through the fastening bolt 804, so that the conical flask 7 is tightly connected with the sand core filtering base, the occurrence of leakage is prevented.

Further, screen cloth 13 includes dictyosome 131, sieve mesh 132 has been seted up to dictyosome 131's surface, dictyosome 131 the outer fixed surface all around be connected with construction bolt 133, dictyosome 131's top surface fixed mounting has handle 134, the surface of sieve mesh 132 is square, handle 134 passes through screw fixed connection at dictyosome 131's top surface, construction bolt 133 is provided with four groups, can sieve the micro-plastics through sieve mesh 132, the micro-plastics (<5mm) is sieved to the solution and is stored the bucket, the plastics that are greater than 5mm stay in screen cloth 13.

The working principle is as follows: when the micro-plastic separation of soil or sediment through the main body 1 is needed, the collected soil sample (especially the sediment sample on the surface of the offshore area) is washed by ultrapure water, the micro-plastic (<5mm) is screened into the solution storage barrel, the plastic larger than 5mm is left in the screen 13, the suspension passing through the screen 13 enters the interior of the pretreatment bin 10 through the peristaltic pump 4, the pretreatment bin 10 is internally composed of a reaction bottle and an ultrasonic oscillator 11, 30% of hydrogen peroxide solution and the soil sample are filled in the reaction bottle, and the solution using hydrogen peroxide as pretreatment has low price, simple components, small influence on micro-plastic particles and can effectively remove organic matters in the soil.

Furthermore, after the suspension is made to flow into the flotation separation chamber 9 by the peristaltic pump 4, the suspension is floated by saturated sodium chloride in the flotation separation chamber 9, the density of the sodium chloride flotation solution used for separation is high, so that impurities such as silt can be precipitated to the bottom, and micro-plastics and other substances with low density float in the supernatant. And finally, the supernatant can be sieved again through the rescreening bin 3 by the peristaltic pump 4, the residual micro-plastics of the solid precipitate are screened, vacuum filtration is carried out through the filter cup 15, the supernatant which is separated by the density separation method and contains the micro-plastics is filtered by a filter membrane, and the micro-plastics which are separated out are all left on the filter membrane. The aperture of the filter membrane is 1-2um, the material of the filter membrane has great influence on the interception mode and efficiency of filtration, and water system filter membranes such as acetate fiber filter membranes, nitrocellulose filter membranes, glass fiber filter membranes and the like are selected.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A micro-plastic separation device, comprising a main body (1) and a motor (5), characterized in that: a vacuum filtration pump (2) is arranged on one side of the main body (1), a re-screening bin (3) is arranged on the left side of the vacuum filtration pump (2), a peristaltic pump (4) is inserted into the outer surface of the upper end of the re-screening bin (3), a motor (5) is fixedly connected to the upper surface of the vacuum filtration pump (2), a shock absorption seat (6) is installed on the outer surface of the bottom end of the motor (5), a conical bottle (7) is arranged on the left side of the vacuum filtration pump (2), a sealing ring (8) is arranged above the conical bottle (7), a filter cup (15) is arranged on the upper surface of the sealing ring (8), a filter membrane is arranged on the outer surface of the bottom end of the filter cup (15), the re-screening bin (3) is fixedly connected with the filter cup (15) through the peristaltic pump (4), a flotation separation bin (9) is fixedly connected to one end of the peristaltic pump (4), a pre-treatment bin (10) is arranged on the left side of the flotation separation bin (9), ultrasonic oscillator (11) are installed in preliminary treatment storehouse (10), preliminary screening storehouse (12) is installed in the left side in preliminary treatment storehouse (10), the internal surface in preliminary screening storehouse (12) is inserted and is equipped with screen cloth (13), the top surface mounting in preliminary screening storehouse (12) has feeding storehouse (14), shock attenuation seat (6) are including base (601), base (601) fixed connection is at the upper end surface of vacuum suction filtration pump (2), the outer fixed surface in upper end of base (601) is connected with sleeve (602), the outer surface cover of sleeve (602) is equipped with pressure spring (603), the internal surface of sleeve (602) is inserted and is equipped with slide bar (604), the top welding of pressure spring (603) has strengthening rib (605).

2. A micro-plastic separation device as claimed in claim 1, wherein: the base is characterized in that the sleeve (602) is fixedly connected to the outer surface of the bottom of the base (601) through screws, the sliding rod (604) is slidably connected with the sleeve (602), the bottom end of the reinforcing rib (605) is fixedly connected to the outer surface of the upper end of the pressure spring (603), and the top end of the reinforcing rib (605) is fixedly connected to the outer surface of the bottom of the motor (5) through a connecting seat.

3. A micro-plastic separation device as claimed in claim 1, wherein: peristaltic pump (4) are inserted and are established at the top surface in riddling storehouse (3), flotation separation storehouse (9), preliminary screening storehouse (10) and prescreening storehouse (12), riddling storehouse (3) are connected with vacuum filtration pump (2) UNICOM through peristaltic pump (4), erlenmeyer flask (7) are connected with vacuum filtration pump (2) UNICOM through peristaltic pump (4).

4. A micro-plastic separation device as claimed in claim 1, wherein: the sealing ring (8) comprises a first sealing plate (801), the upper surface of the first sealing plate (801) is connected with a rubber gasket (803), the upper surface of the rubber gasket (803) is connected with a second sealing plate (802), a fastening bolt (804) is inserted into the outer surface of the second sealing plate (802), the fastening bolt (804) penetrates through the outer surfaces of the first sealing plate (801) and the second sealing plate (802), and the outer surface of the rubber gasket (803) is a rubber ring with an elastic structure.

5. A micro-plastic separation device as claimed in claim 1, wherein: the screen mesh (13) comprises a mesh body (131), screen holes (132) are formed in the outer surface of the mesh body (131), mounting bolts (133) are fixedly connected to the outer surface of the periphery of the mesh body (131), and a handle (134) is fixedly mounted on the outer surface of the top end of the mesh body (131).

6. A micro-plastic separation device according to claim 5, wherein: the outer surface of the sieve pore (132) is square, the handle (134) is fixedly connected to the outer surface of the top end of the net body (131) through screws, and four groups of mounting bolts (133) are arranged.