CN216703441U

CN216703441U - Low-emission wastewater recovery system

Info

Publication number: CN216703441U
Application number: CN202122796635.5U
Authority: CN
Inventors: 吴延河; 朱国庆; 何友均; 司峰
Original assignee: China Petroleum and Chemical Corp; Qilu Petrochemical Co of Sinopec
Current assignee: China Petroleum and Chemical Corp; Qilu Petrochemical Co of Sinopec
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-06-10
Anticipated expiration: 2031-11-16

Abstract

A low-emission wastewater recovery system belongs to the technical field of wastewater recovery. Including wastewater disposal basin (1), be provided with recovery pipeline, its characterized in that at the drainage end of wastewater disposal basin (1): an isolation mechanism (2) is arranged in the wastewater tank (1) close to the drainage end, and a first isolation piece for isolating impurities with density less than that of water and a second isolation piece for isolating impurities with density greater than that of water are arranged in the isolation mechanism (2). In this waste water recovery system of low emission, through setting up isolation mechanism and keeping apart the back recovery to the impurity that density is greater than water and density is less than water in the waste water respectively, greatly reduced the waste of water resource. The isolation mechanism is provided with two sets, and the isolation effect on impurities is further improved. Set up the filter screen at the entrance of recycle pump, effectively avoid remaining impurity to get into the recycle pump after, cause the damage to the recycle pump.

Description

Low-emission wastewater recovery system

Technical Field

A low-emission wastewater recovery system belongs to the technical field of wastewater recovery.

Background

Wastewater occurs in many industrial sites, and at present, the wastewater is treated in a direct discharge mode in the industrial sites. However, some waste water is only doped with some solid impurities, the water quality of the waste water is not toxic, although the waste water cannot be used as drinking water, the waste water can be used for the second time in various occasions, and the direct discharge causes serious waste of water resources. Although some schemes for secondary recovery of wastewater appear in the market, the investment is large, so that a technical scheme capable of recovering wastewater at low cost is designed, and the problem to be solved in the field is urgently needed.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: overcome prior art's not enough, provide one kind and retrieve after keeping apart through setting up the impurity that isolation mechanism is greater than water and density is less than water in the density respectively to waste water, greatly reduced the waste water recovery system of the low emission of water waste.

The technical scheme adopted by the utility model for solving the technical problems is as follows: this waste water recovery system of low emission, including the wastewater disposal basin, be provided with recovery pipeline, its characterized in that at the drainage end of wastewater disposal basin: an isolation mechanism is arranged in the wastewater tank close to the drainage end, and a first isolation piece used for isolating impurities with density less than that of water and a second isolation piece used for isolating impurities with density more than that of water are arranged in the isolation mechanism.

Preferably, the isolation mechanism comprises a first high wall and a first short wall lower than the first high wall, the first high wall and the first short wall are arranged along the flow direction of the wastewater, the first high wall is the first isolation member, and the first short wall is the second isolation member.

Preferably, an opening for wastewater to flow through is provided at the root of the first high wall.

Preferably, the two of the first high wall and the first low wall extend to the wall of the wastewater pond.

Preferably, the isolation mechanisms are arranged in the wastewater tank in two groups along the flowing direction of wastewater.

Preferably, the recovery pipeline is provided with a recovery valve and then is connected with an inlet of a recovery pump, and an outlet of the recovery pump is divided into two output pipelines: a first output line and a second output line.

Preferably, a first valve is arranged in the first output pipeline, and a second valve is arranged in the second output pipeline.

Preferably, a filter screen is arranged at the inlet of the recovery pump.

Compared with the prior art, the utility model has the beneficial effects that:

1. in this waste water recovery system of low emission, through setting up isolation mechanism and keeping apart the back recovery to the impurity that density is greater than water and density is less than water in the waste water respectively, greatly reduced the waste of water resource.

2. The isolation mechanism is provided with two sets, and the isolation effect on impurities is further improved.

3. Set up the filter screen at the entrance of recycle pump, effectively avoid remaining impurity to get into the recycle pump after, cause the damage to the recycle pump.

Drawings

FIG. 1 is a schematic diagram of a low emission wastewater recovery system.

Fig. 2 is a schematic structural diagram of an isolation mechanism of a low-discharge wastewater recovery system.

Wherein: 1. the device comprises a wastewater pool 2, an isolation mechanism 3, a recovery valve 4, a recovery pump 5, a first output pipeline 6, a first valve 7, a second valve 8, a second output pipeline 9, a first high wall 10, a first short wall 11, a second high wall 12 and a second short wall.

Detailed Description

FIGS. 1-2 illustrate preferred embodiments of the present invention, and the present invention will be further described with reference to FIGS. 1-2.

As shown in figure 1, the low-discharge wastewater recovery system comprises a wastewater pool 1, wherein a recovery pipeline is arranged at the drainage end of the wastewater pool 1, a recovery valve 3 is installed in the recovery pipeline and then connected to an inlet of a recovery pump 4, and a filter screen is arranged at the inlet of the recovery pump 4. The outlet of the recovery pump 4 is divided into two paths through a pipeline: a first outlet line 5, in which first valve 6 is arranged, and a second outlet line 8, in which second valve 7 is arranged, in which first outlet line 5.

Be provided with two sets of isolation mechanisms 2 on wastewater disposal basin 1 near drainage end one side, combine figure 2, every isolation mechanism 2 of group includes a stifled high wall and a stifled short wall, follows the direction that wastewater flows and is in proper order: the first high wall 9, the first low wall 10, the second high wall 11 and the second low wall 12 are respectively provided with an opening through which waste water can flow at the bottom of the first high wall 9 and the second high wall 11. The two ends of the first high wall 9, the first short wall 10, the second high wall 11 and the second short wall 12 extend to the wall of the waste water tank 1.

The specific working process and working principle are as follows:

the waste water phase in the waste water tank 1 flows through the drainage end, when the waste water phase flows to the first high wall 9, impurities with density smaller than that of water are blocked by the first high wall 9 and are accumulated at the first high wall 9, the waste water and the impurities with specific gravity larger than that of the water continuously flow through the opening at the bottom of the first high wall 9, the impurities with specific gravity larger than that of the water are blocked by the first short wall 10 and at the wall root, and the residual waste water continuously flows to the second high wall 11 through the wall head of the first short wall 10. The second high wall 11 and the second low wall 12 have the same function as the first high wall 9 and the first low wall 10, and perform secondary isolation with respect to impurities having a specific gravity less than that of water and impurities having a specific gravity greater than that of water.

The waste water after the secondary isolation flows to a drainage end and is sent to the first output pipeline 5 and the second output pipeline 8 for output under the action of the recovery pump 4, so that secondary utilization is realized. The impurities at the first high wall 9 and the second high wall 11 and at the first short wall 10 and the second short wall 12 are cleaned regularly by manpower, so that the impurity isolation in the wastewater is ensured to be carried out smoothly.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a waste water recovery system of low discharge, includes wastewater disposal basin (1), is provided with recovery pipeline, its characterized in that at the drainage end of wastewater disposal basin (1): an isolation mechanism (2) is arranged in the wastewater tank (1) close to the drainage end, and a first isolation piece for isolating impurities with density less than that of water and a second isolation piece for isolating impurities with density greater than that of water are arranged in the isolation mechanism (2).

2. A low discharge wastewater recovery system according to claim 1, characterized in that: the isolation mechanism (2) comprises a first high wall (9) and a first short wall (10) which is lower than the first high wall (9), the first high wall (9) and the first short wall (10) are arranged along the flow direction of wastewater, the first high wall (9) is the first isolation piece, and the first short wall (10) is the second isolation piece.

3. A low discharge wastewater recovery system according to claim 2, characterized in that: an opening for waste water to flow through is arranged at the root of the first high wall (9).

4. A low discharge wastewater recovery system according to claim 2, characterized in that: the two of the first high wall (9) and the first short wall (10) extend to the wall of the wastewater pool (1).

5. A low discharge wastewater recovery system according to claim 1, characterized in that: the isolation mechanisms (2) are arranged in the wastewater pool (1) in two groups along the flowing direction of wastewater.

6. A low discharge wastewater recovery system according to claim 1, characterized in that: the inlet of the recovery pump (4) is connected behind the recovery pipeline installation recovery valve (3), and the outlet of the recovery pump (4) is divided into two output pipelines: a first outlet line (5) and a second outlet line (8).

7. The low discharge wastewater recovery system of claim 6, further comprising: a first valve (6) is arranged in the first output pipeline (5), and a second valve (7) is arranged in the second output pipeline (8).

8. The low discharge wastewater recovery system of claim 6, further comprising: a filter screen is arranged at the inlet of the recovery pump (4).