CN215480223U

CN215480223U - Moving bed type PRB permeable reactive barrier

Info

Publication number: CN215480223U
Application number: CN202121624666.6U
Authority: CN
Inventors: 刘学鹏; 赵遥菲; 李继红; 刘伟汉; 潘高峰; 陈重新
Original assignee: Xiangtan Pingan Ecological Technology Co ltd
Current assignee: Xiangtan Pingan Ecological Technology Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-11
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a moving bed type PRB permeable reactive barrier, which comprises an RPB reactive material regeneration or replacement unit, a PRB active material regeneration unit foundation, a moving bed, a reverse filter layer and a ground water-proof layer at the bottom of underground water, wherein the moving bed comprises a transmission rotating shaft, a PRB active material porous outer partition plate, a water permeable hole, a PRB active material transmission partition plate, a moving bed transmission belt, a driven rotating shaft and a moving bed transmission net. This remove bed formula PRB permeable reaction wall, through the transmission pivot that sets up and the porous outer baffle of PRB active material, the hole of permeating water, PRB active material transmission baffle, remove the bed transmission band, driven spindle's cooperation, can keep PRB active material and remove bed transmission band simultaneous movement, can make groundwater again flow to low reaches after purifying through removing the bed transmission network, have degree of automation height, simple structure, easy and simple to handle, maintain advantages such as convenient.

Description

Moving bed type PRB permeable reactive barrier

Technical Field

The utility model relates to the field of underground water environment treatment, in particular to a moving bed type PRB permeable reactive barrier.

Background

The RPB permeable reactive barrier is a groundwater in-situ remediation technology which is characterized in that an active material wall is arranged underground to intercept a pollution pinnate body, so that the pollutant can be converted into another form which is accepted by the environment after the pollution pinnate body passes through a reaction medium, and therefore the pollutant concentration reaches the relevant water environment quality standard.

Therefore, it is necessary to provide a moving bed type PRB permeable reactive barrier to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a moving bed type PRB permeable reactive barrier which can effectively solve the problems in the background art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a remove bed formula PRB permeable reactive barrier, includes RPB reaction material regeneration or change unit, PRB active material regeneration unit ground, removes the bed, the inverted filter, groundwater bottom water barrier, it includes transmission pivot, the porous outer baffle of PRB active material, the hole of permeating water, PRB active material transmission baffle, removes the bed transmission band, driven spindle, remove the bed transmission network to remove the bed.

Preferably, a PRB active material regeneration unit foundation is arranged at the bottom of the RPB reaction material regeneration or replacement unit, a moving bed is arranged at the bottom of the RPB reaction material regeneration or replacement unit, reverse filtration layers are symmetrically arranged on the left side and the right side of the moving bed, the bottom of the moving bed is fixedly connected with the top of a groundwater bottom water-resisting layer, and the top of the moving bed extends to the inside of the PRB active material regeneration unit foundation.

Preferably, the top of the moving bed transmission belt is sleeved on the outer surface of the transmission rotating shaft, the bottom of the moving bed transmission belt is sleeved on the outer surface of the driven rotating shaft, the rear end of the transmission rotating shaft is connected with the engine, and the transmission rotating shaft is arranged inside the RPB reaction material regeneration or replacement unit.

Preferably, the PRB active material transmission partition plates are a plurality of in number and are uniformly distributed on the outer surface of the moving bed transmission belt, and the PRB active material transmission partition plates are arranged in the middle of the moving bed and the reverse filtration layer.

Preferably, the PRB active materials are arranged in the middle of two adjacent PRB active material transmission partition plates, and the moving bed transmission net is connected to the middle of two moving bed transmission belts.

Preferably, the number of the holes of permeating water is a plurality of, the hole of permeating water sets up the surface at the porous outer baffle of PRB active material, the porous outer baffle of PRB active material sets up the middle part at the inverted filter and PRB active material.

Advantageous effects

Compared with the prior art, the utility model provides a moving bed type PRB permeable reactive barrier, which has the following beneficial effects:

1. this remove bed formula PRB permeable reaction wall, through the transmission pivot that sets up and the porous outer baffle of PRB active material, the hole of permeating water, PRB active material transmission baffle, remove the bed transmission band, driven spindle's cooperation, can keep PRB active material and remove bed transmission band simultaneous movement, can make groundwater again flow to low reaches after purifying through removing the bed transmission network, have degree of automation height, simple structure, easy and simple to handle, maintain advantages such as convenient.

2. This moving bed formula PRB permeable reactive barrier, the RPB reaction material regeneration that sets up or change the unit and can carry out the normal position to polluting groundwater and restore, it is simple and convenient to regenerate or change PRB active material, can effectively promote PRB permeable reactive barrier's purifying effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a porous outer separator of PRB active material according to the present invention;

fig. 3 is a front view of the moving bed of the present invention.

In the figure: 1. an RPB reactive material regeneration or replacement unit; 2. a PRB active material regeneration unit foundation; 3. moving the bed; 4. a reverse filtering layer; 5. a water barrier layer at the bottom of the underground water; 6. a transmission rotating shaft; 7. a porous outer PRB active material separator; 8. water permeable holes; 9. a PRB active material; 10. a PRB active material transmission separator; 11. a moving bed conveyor belt; 12. a driven rotating shaft; 13. moving bed transport networks.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a moving bed type PRB permeable reactive barrier includes an RPB reactive material regeneration or replacement unit 1, a PRB active material regeneration unit foundation 2, a moving bed 3, a reverse filter layer 4, and a groundwater bottom water barrier layer 5, where the moving bed 3 includes a transmission rotating shaft 6, a PRB active material porous outer partition 7, a water permeable hole 8, a PRB active material 9, a PRB active material transmission partition 10, a moving bed transmission belt 11, a driven rotating shaft 12, and a moving bed transmission network 13, the bottom of the RPB reactive material regeneration or replacement unit 1 is provided with the PRB active material regeneration unit foundation 2, the bottom of the RPB reactive material regeneration or replacement unit 1 is provided with the moving bed 3, the left and right sides of the moving bed 3 are symmetrically provided with the reverse filter layer 4, the bottom of the moving bed 3 is fixedly connected with the top of the groundwater bottom water barrier layer 5, and the top of the moving bed 3 extends to the inside of the PRB active material regeneration unit foundation 2, the top of the moving bed transmission belt 11 is sleeved on the outer surface of the transmission rotary shaft 6, the bottom of the moving bed transmission belt 11 is sleeved on the outer surface of the driven rotary shaft 12, the rear end of the transmission rotary shaft 6 is connected with the engine, the transmission rotary shaft 6 is arranged inside the RPB reaction material regeneration or replacement unit 1, the PRB active material transmission partition plates 10 are a plurality in number and are uniformly distributed on the outer surface of the moving bed transmission belt 11, the PRB active material transmission partition plates 10 are arranged in the middle of the moving bed 3 and the reverse filter layer 4, the PRB active material 9 is arranged in the middle of two adjacent PRB active material transmission partition plates 10, the moving bed transmission net 13 is connected in the middle of the two moving bed transmission belts 11, the water permeable holes 8 are a plurality in number, the water permeable holes 8 are arranged on the surface of the PRB active material porous outer partition plate 7, the PRB active material porous outer partition plate 7 is arranged in the middle of the reverse filter layer 4 and the PRB active material 9, through the matching of the transmission rotating shaft 6 and the porous outer PRB active material partition 7, the permeable holes 8, the PRB active material 9, the PRB active material transmission partition 10, the moving bed transmission belt 11 and the driven rotating shaft 12, the synchronous motion of the PRB active material 9 and the moving bed transmission belt 11 can be kept, and the underground water can flow to the downstream after being purified through the moving bed transmission net 13, thereby having the advantages of high automation degree, simple structure, simple and convenient operation and maintenance, etc., the polluted underground water can be repaired in situ through the set RPB reaction material regeneration or replacement unit 1, the PRB active material 9 can be regenerated or replaced easily and conveniently, the purification effect of the PRB permeable reaction wall can be effectively improved, the moving bed transmission belt 11 is made of flexible wear-resistant and corrosion-resistant materials, the PRB active material transmission partition 10 is made of rigid corrosion-resistant structures, one side of the porous outer PRB active material partition 7 close to the PRB active material 9 is made of smooth wear-resistant materials, one side of the PRB active material porous outer clapboard 7 close to the reverse filter layer 4 is wrapped with water-permeable corrosion-resistant anti-clogging materials such as geotextile.

It should be noted that the utility model is a moving bed type PRB permeable reactive barrier, when in use, polluted groundwater enters into a moving bed 3 from upstream through a reverse filtration layer 4, when the underground water flows through the moving bed 3, the underground water reacts with the PRB active material 9 to realize the purification of the water quality of the underground water, the polluted underground water flows to the downstream through the downstream inverted filter layer 4 after being purified by the PRB active material 9, and simultaneously the motor drives the transmission rotating shaft 6 to rotate, further driving the moving bed 3 to move according to a certain mode, and then driving the PRB active material transmission clapboard 10, the moving bed transmission belt 11, the driven rotating shaft 12 and the moving bed transmission net 13 to move synchronously, and then PRB active materials 9 move in a certain direction in the moving bed 3, and after the PRB active materials 9 which are inactivated by reaction in the moving bed 3 sequentially move into the RPB reaction material regeneration or replacement unit 1, the PRB reaction materials can be quickly regenerated or simply replaced according to actual conditions.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a moving bed formula PRB permeable reactive barrier which characterized in that: including RPB reaction material regeneration or change unit (1), PRB active material regeneration unit ground (2), moving bed (3), inverted filter (4), groundwater bottom water barrier (5), moving bed (3) are including transmission pivot (6), porous outer baffle of PRB active material (7), hole (8) of permeating water, PRB active material (9), PRB active material transmission baffle (10), moving bed transmission band (11), driven spindle (12), moving bed transmission net (13).

2. The moving bed PRB permeable reactive barrier of claim 1, wherein: the bottom of the RPB reaction material regeneration or replacement unit (1) is provided with a PRB active material regeneration unit foundation (2), the bottom of the RPB reaction material regeneration or replacement unit (1) is provided with a moving bed (3), the left side and the right side of the moving bed (3) are symmetrically provided with inverted filter layers (4), the bottom of the moving bed (3) is fixedly connected with the top of a groundwater bottom water-resisting layer (5), and the top of the moving bed (3) extends to the inside of the PRB active material regeneration unit foundation (2).

3. The moving bed PRB permeable reactive barrier of claim 1, wherein: the top cover of moving bed transmission band (11) is established at the surface of transmission pivot (6), the bottom cover of moving bed transmission band (11) is established at the surface of driven spindle (12), the rear end of transmission pivot (6) links to each other with the engine, transmission pivot (6) set up in the inside of RPB reaction material regeneration or replacement unit (1).

4. The moving bed PRB permeable reactive barrier of claim 1, wherein: the PRB active material transmission partition plates (10) are a plurality of in number and are uniformly distributed on the outer surface of the moving bed transmission belt (11), and the PRB active material transmission partition plates (10) are arranged in the middle of the moving bed (3) and the reverse filtering layer (4).

5. The moving bed PRB permeable reactive barrier of claim 1, wherein: the PRB active materials (9) are arranged in the middle of two adjacent PRB active material transmission partition plates (10), and the moving bed transmission net (13) is connected to the middle of two moving bed transmission belts (11).

6. The moving bed PRB permeable reactive barrier of claim 1, wherein: the quantity of the holes (8) of permeating water is a plurality of, the holes (8) of permeating water set up on the surface of PRB active material porous outer baffle (7), PRB active material porous outer baffle (7) set up in the middle part of inverted filter (4) and PRB active material (9).