CN210595468U

CN210595468U - Initial farmland surface runoff interception and purification device

Info

Publication number: CN210595468U
Application number: CN201921571938.3U
Authority: CN
Inventors: 赵长盛; 陈庆锋; 司国瑞; 郭贝贝; 张婧; 尹志超; 刘婷
Original assignee: Shandong Analysis and Test Center
Current assignee: Shandong Analysis and Test Center
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-22
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a primary farmland surface runoff interception and purification device, which comprises a purification interception dam arranged in a ditch; the purification interception dam consists of a bottom plate, a front baffle, a rear baffle, two side plates, a first middle baffle and a second middle baffle, wherein the front baffle, the rear baffle, the first middle baffle, the second middle baffle and the bottom plate are uniformly provided with water permeable holes; front grid grooves, middle grid grooves and rear grid grooves are respectively arranged between the front baffle and the first middle baffle, between the first middle baffle and the second middle baffle and between the second middle baffle and the rear baffle, and shale ceramsite, charcoal particles and fine sand are respectively filled in the front grid grooves, the middle grid grooves and the rear grid grooves. The utility model discloses an intercept purifier, initial stage rainwater are filtered by haydite, biological charcoal granule, fine sand in proper order, have not only realized the filtration to the rainwater, and the microorganism in haydite, biological charcoal and the fine sand still can realize the purification effect to the water moreover, has solved the water pollution that brings in current initial stage farmland surface runoff direct inflow river or lake.

Description

Initial farmland surface runoff interception and purification device

Technical Field

The utility model relates to a purifier is held back to initial stage farmland surface runoff, more specifically says so, especially relates to a purifier is held back to initial stage farmland surface runoff that can get up and purify the higher initial stage rainwater storage of pollution concentration.

Background

In order to improve the crop yield and reduce the labor force, a large amount of chemical fertilizers, pesticides and herbicides are used in the existing agricultural production process, and the chemical fertilizers and the pesticides are sprayed to improve the crop yield and kill pests and simultaneously pollute the soil to different degrees. Especially, the initial surface runoff generated by rainfall has the highest concentration of organic matters, and if the initial surface runoff is not treated and purified, the concentration of the organic matters in rivers and lakes is too high, so that the eutrophication and pollution of water bodies are caused, the water quality is broken, the ecological balance of the rivers and lakes is seriously influenced, and the ecological environment is seriously damaged finally, so that the initial surface runoff generated by rainfall is very necessary to be collected, stored and treated, and the organic matters in the initial rainwater are discharged into the rivers and lakes after being consumed and treated, so that the pollution to the water bodies is avoided.

Disclosure of Invention

The utility model discloses an overcome above-mentioned technical problem's shortcoming, provide one kind and can get up the higher initial stage rainwater storage of pollution concentration and the initial stage farmland surface runoff that purifies and hold back purifier.

The utility model discloses a primary farmland surface runoff interception and purification device, which comprises a purification interception dam arranged at the tail end of a field drainage ditch and in a head drainage ditch; the method is characterized in that: the purification interception dam comprises a bottom plate, a front baffle, a rear baffle and two side plates, wherein the front baffle, the rear baffle and the two side plates are fixed on the upper surface of the bottom plate; a first intermediate baffle and a second intermediate baffle which are parallel to the front baffle and the rear baffle are sequentially arranged between the front baffle and the rear baffle, and water permeable holes are uniformly formed in the front baffle, the rear baffle, the first intermediate baffle, the second intermediate baffle and the bottom plate;

a front grid groove is formed between the front baffle and the first intermediate baffle, a middle grid groove is formed between the first intermediate baffle and the second intermediate baffle, a rear grid groove is formed between the second intermediate baffle and the rear baffle, and shale ceramsite, charcoal particles and fine sand which are used for filtering, intercepting and purifying surface runoff of initial rainwater are respectively filled in the front grid groove, the middle grid groove and the rear grid groove.

The utility model discloses a purifier is held back to initial stage farmland surface runoff, dig in the ditch canal at the below of purification interception dam and rear and be equipped with the storage pool that carries out the storage to the surface runoff of initial stage rainwater, it has the shale haydite to fill in the storage pool.

The utility model discloses a purifier is held back to initial stage farmland surface runoff, the middle part that purifies the interception dam is provided with the backup pad, and on the both ends of backup pad were fixed in the internal surface of preceding baffle and backplate respectively, the upper portion of first intermediate bottom and the upper portion male fluting of second intermediate bottom were seted up at the middle part of backup pad.

The utility model discloses a purifier is held back to initial stage farmland surface runoff, preceding baffle, backplate, first intermediate bottom and second intermediate bottom be wide isosceles trapezoid shape down.

The utility model has the advantages that: the utility model discloses a purifier is held back to initial stage farmland surface runoff, by the bottom plate, the front bezel, the backplate, both sides board and first and second intermediate bottom constitute, make the front bezel, first intermediate bottom, form the front lattice groove in proper order between second intermediate bottom and the backplate, well lattice groove and back lattice groove, and all seted up the hole of permeating water except both sides board, fill shale haydite, biological carbon granule, fine sand in the front, in, back lattice groove respectively, like this, initial stage rainwater surface runoff is in the process of flowing through the purification interception dam, can be filtered by haydite, biological carbon granule, fine sand in proper order, not only realized the filtration to the rainwater, and the microorganism in haydite, biological carbon and the fine sand can also realize the purification effect to the water; the farmland initial stage rainwater surface runoff is filtered by the interception dam and then stored in the storage pool below the farmland initial stage rainwater surface runoff, and cannot flow into a river or a lake along with later stage rainwater, and microorganisms in the storage pool consume and purify organic matters in the farmland initial stage rainwater surface runoff under the combined action of aerobic and anaerobic conditions, so that the problem of water pollution caused by the fact that the existing initial stage farmland surface runoff directly flows into the river or the lake is solved.

Drawings

FIG. 1 is a schematic diagram of the arrangement of the initial stage farmland surface runoff interception and purification device of the utility model;

FIG. 2 is a front view of the initial stage farmland surface runoff interception and purification device of the utility model;

FIG. 3 is a top view of the initial stage of the agricultural surface runoff intercepting and purifying device of the present invention;

FIG. 4 is a cross-sectional view of section A-A of FIG. 2;

FIG. 5 is a cross-sectional view of the surface runoff intercepting and purifying device of the present invention disposed in a ditch;

fig. 6 is a top view of the surface runoff intercepting and purifying device of the utility model arranged in the ditch.

In the figure: 1 ridgefield, 2 field drainage ditches, 3 ground head drainage ditches, 4 purification interception dams, 5 bottom plates, 6 front baffles, 7 rear baffles, 8 side plates, 9 first intermediate baffles, 10 second intermediate baffles, 11 permeable holes, 12 front grid grooves, 13 middle grid grooves, 14 rear grid grooves, 15 supporting plates, 16 shale ceramsite, 17 biochar particles, 18 fine sand, 19 ditches and 20 storage pools.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in fig. 1, provided the utility model discloses a purifier is held back to initial stage farmland surface runoff lays the schematic diagram, is provided with field escape canal 2 between the illustrated rectangular pieces of land in a field 1, and rectangular pieces of land in a field 1's one end is provided with first escape canal 3, and at initial stage precipitation in-process, the surface runoff that forms in rectangular pieces of land in a field 1 at first flows into field escape canal 2, then collects first escape canal 3 again, collects bigger irrigation canals and ditches by first escape canal 3, perhaps directly arranges in river or lake. Because the concentration content of the farmland surface runoff pollutants at the early stage of precipitation is highest, if the farmland surface runoff at the early stage can be collected for purification treatment, the problem that the surface runoff pollutes rivers and lakes at the early stage can be solved. As shown in fig. 1, the purification interception dams 4 are provided in the end of the purification interception dams 4 and the ground drainage canal 3.

As shown in fig. 2 and 3, the utility model discloses a purifier is held back to initial stage farmland surface runoff's main view and top view respectively, fig. 4 gives the cross-section of A-A cross-section in fig. 2, shown holding back purifier is purification interception dam 4, it comprises bottom plate 5, preceding baffle 6, backplate 7, both sides board 8, first intermediate bottom 9, second intermediate bottom 10, preceding baffle 6, backplate 7 and both sides board 8 are fixed in around bottom plate 5 upper surface respectively, preceding baffle 6 and backplate 7 parallel arrangement each other, preceding baffle 6, backplate 7, form upper end open-ended cavity between both sides board 8 and the bottom plate 5. A first middle partition plate 9 and a second middle partition plate 10 are sequentially arranged between the front baffle plate 6 and the rear baffle plate 7, and the first middle partition plate 9 and the second middle partition plate 10 are also arranged in parallel with the front baffle plate 6 and the rear baffle plate 7.

The front baffle 6, the rear baffle 7, the first middle baffle 9, the second middle baffle 10 and the bottom plate 5 are all evenly provided with water permeable holes 11. A front grid groove 12 is formed between the front baffle 6 and the first middle baffle 9, a middle grid groove 13 is formed between the first middle baffle 9 and the second middle baffle 10, a rear grid groove 14 is formed between the second middle baffle 10 and the rear baffle 7, shale ceramsite 16, biochar particles 17 and fine sand 18 are respectively filled among the front grid groove 12, the middle grid groove 13 and the rear grid groove 14, so that in the process that the surface diameter of initial rainwater flows through the water permeable holes 11 and flows from the front baffle 6 to the rear baffle 7, the shale ceramsite 16, the biochar particles 17 and the fine sand 18 can respectively filter solid suspended matters with large particle diameter, small particle diameter and fine particle diameter in initial runoff, and meanwhile, microorganisms bred in the shale ceramsite 16, the biochar particles 17 and the fine sand 18 can also consume organic matters in the water, so that water quality purification is realized.

In order to ensure the stability of the front baffle 6, the rear baffle 7, the first intermediate baffle 9 and the second intermediate baffle 10, the middle part of the purification interception dam 4 is provided with a supporting plate 15, two ends of the supporting plate 15 are respectively fixed on the inner surfaces of the front baffle 6 and the rear baffle 7, two notches are formed in the lower part of the middle part of the supporting plate 15, and the upper parts of the first intermediate baffle 9 and the second intermediate baffle 10 are embedded into the two notches, so that the firmness of the front baffle 6, the rear baffle 7, the first intermediate baffle 9 and the second intermediate baffle 10 is ensured, and the front baffle 6, the rear baffle 7, the first intermediate baffle 9 and the second intermediate baffle 10 cannot deform after being impacted by water and pressure. The front baffle 6, the rear baffle 7, the first middle partition 9 and the second middle partition 10 are in a shape with a wide upper part and a narrow lower part, and the trapezoid shape with the wide upper part and the narrow lower part is beneficial to being arranged in the field drainage channel 2 and the ground drainage channel 3.

As shown in fig. 5 and fig. 6, the cross-sectional view and the top view of the surface runoff intercepting and purifying device of the present invention disposed in the ditch are respectively shown, a storage pool 20 is provided in the ditch below and behind the purifying and intercepting dam 4, the volume of the storage pool 20 should be 3 times or more than 3 times of the volume of the purifying and intercepting dam 4, and the shale ceramsite 16 is filled in the storage pool 20. Thus, the initial farmland surface runoff is filtered and purified by shale ceramsite 16, biochar particles 17 and fine sand 18 in the purification interception dam 4 and then flows into the storage pool 20, microorganisms growing on the shale ceramsite 16 in the storage pool 20 form a microorganism purification membrane, the purification effect on the initial farmland rainwater intercepted in the storage pool 20 is realized, organic matters carried in the rainwater are decomposed and consumed, and the pollution of the existing farmland initial rainwater surface runoff on rivers and lakes is avoided.

Claims

1. An initial farmland surface runoff interception and purification device comprises a purification interception dam (4) arranged at the tail end of a farmland drainage channel (2) and in a farmland drainage channel (3); the method is characterized in that: the purification interception dam (4) consists of a bottom plate (5), a front baffle (6), a rear baffle (7) and two side plates (8), wherein the front baffle is fixed on the upper surface of the bottom plate, the rear baffle is fixed on the upper surface of the bottom plate, the front baffle and the rear baffle are arranged in parallel, the two side plates are respectively fixed with the two ends of the front baffle and the rear baffle, and a cavity with an opening at the upper end is formed among the bottom plate, the front baffle, the rear baffle and the two side plates; a first middle clapboard (9) and a second middle clapboard (10) which are parallel to the front baffle and the rear baffle are sequentially arranged between the front baffle and the rear baffle, and water permeable holes (11) are uniformly formed in the front baffle, the rear baffle, the first middle clapboard, the second middle clapboard and the bottom plate;

a front grid groove (12) is formed between the front baffle (6) and the first middle baffle (9), a middle grid groove (13) is formed between the first middle baffle and the second middle baffle (10), a rear grid groove (14) is formed between the second middle baffle and the rear baffle (7), and shale ceramsite (16), biochar particles (17) and fine sand (18) which are used for filtering, intercepting and purifying surface runoff of initial rainwater are filled in the front grid groove, the middle grid groove and the rear grid groove respectively.

2. The initial farmland surface runoff interception and purification device of claim 1, wherein: and a storage pool (20) for storing surface runoff of initial rainwater is dug in ditches below and behind the purification interception dam (4), and shale ceramsite is filled in the storage pool.

3. The initial farmland surface runoff interception purification apparatus of claim 1 or 2, wherein: the middle part of the purification interception dam (4) is provided with a supporting plate (15), two ends of the supporting plate are respectively fixed on the inner surfaces of the front baffle (6) and the rear baffle (7), and the middle part of the supporting plate is provided with a groove in which the upper part of the first intermediate clapboard (9) and the upper part of the second intermediate clapboard (10) are inserted.