CN110886371A

CN110886371A - Slag slow cooling field

Info

Publication number: CN110886371A
Application number: CN201911101005.2A
Authority: CN
Inventors: 姚书俊
Original assignee: Tongling Nonferrous Metals Group Co Ltd
Current assignee: Tongling Nonferrous Metals Group Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-03-17

Abstract

The invention belongs to the technical field of metallurgy, and particularly relates to a slag slow cooling field which comprises a slag ladle area and a transportation area which are arranged closely, wherein the vertical sections of the ground of the slag ladle area and the transportation area are high at two sides and low in the middle, the intersection boundary formed by the high sides of the slag ladle area and the transportation area is the highest position, and water collecting ditches are respectively arranged at the low positions of the ground of the slag ladle area and the transportation area. By adopting the scheme, the ground of the slag ladle area and the ground of the transportation area are both high at two sides and low in the middle, the ground of the intersection line of the two areas is highest, when raining, rainwater in the slag ladle area is gathered together with circulating water to the low position of the slag ladle area, and rainwater in the transportation area is gathered to the low position of the ground of the transportation area, so that the slow cooling water and the rainwater are respectively collected. The scheme of the invention can effectively split the rainwater and the slow cooling circulating water, greatly reduce the sewage yield, reduce the pressure of a sewage treatment system and meet the strategic guidelines of energy conservation and emission reduction.

Description

Slag slow cooling field

Technical Field

The invention belongs to the technical field of metallurgy, and particularly relates to a slag slow cooling field.

Background

Slag generated by a copper smelting plant is loaded into a slag ladle, is transported to a slag slow cooling field by a slag ladle truck and is placed in sequence, then water is discharged for cooling, and the cooled slag is transported to a slag storage yard and then enters a mineral processing system. The beneficiation system recovers most of the copper in the slag by re-crushing, grinding and flotation of the slag.

The occupied area of the slag slow cooling field is generally larger, and taking a slag slow cooling field matched with 40 ten thousand tons of electrolytic copper produced every year as an example, the whole occupied area of the slag slow cooling field is about 3.2 ten thousand square meters.

Generally, a transportation channel is reserved between two rows of slag ladle positions, the ground of the channel is the same as that of a normal urban road, the middle of the channel is high, the two sides of the channel are low, water accumulation is prevented, and rainwater flows and gathers to the positions on the two sides along with the gradient of the road surface in rainy days, namely gathers to the slag ladle positions. That is, all the rainwater in the whole slag slow cooling field is mixed with slow cooling circulating water and enters a slow cooling circulating water return pool. Because harmful factors such as heavy metals in slow-cooling circulating water seriously exceed the standard, the harmful factors are also exceeded the standard after rainwater is mixed and cannot be discharged, so that the circulating water quantity is overlarge, redundant circulating water must be sent into a sewage treatment system, and great pressure is caused to the sewage treatment system; in addition, in the seasons with much rainwater, the water in the circulating water return pool cannot be treated in time and overflows, and the surrounding environment is greatly influenced.

Therefore, a method for reducing the amount of sewage in the slag slow cooling field is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a slag slow cooling field capable of realizing respective collection of rainwater and slow cooling circulating water.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a sediment slow cooling field, is including just facing sediment package district and the transportation district of arranging, the vertical cross section on sediment package district and transportation district ground all is that both sides are high, the centre is low, and the crossing border that high order side between them constitutes is the highest position, and sediment package district and transportation district ground low level punishment do not are equipped with the catch basin.

By adopting the scheme, the ground of the slag ladle area and the ground of the transportation area are both high at two sides and low in the middle, the ground of the intersection line of the two areas is highest, when raining, rainwater in the slag ladle area is gathered together with circulating water to the low position of the slag ladle area, and rainwater in the transportation area is gathered to the low position of the ground of the transportation area, so that the slow cooling water and the rainwater are respectively collected. The scheme of the invention can effectively split the rainwater and the slow cooling circulating water, greatly reduce the sewage yield, reduce the pressure of a sewage treatment system and meet the strategic guidelines of energy conservation and emission reduction.

Drawings

FIG. 1 is a top view of the main portion of the slag slow cooling field of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

in the figure: 10-slag ladle area, 11-spraying device, 12-slag ladle position, 13-slow cooling water collecting ditch, 20-transportation area, 21-rainwater collecting ditch, 30-slow cooling water pool and 40-initial rainwater pool

Detailed Description

The technical scheme of the invention is further detailed in the following with reference to the accompanying drawings.

The utility model provides a sediment slow cooling field, is including just facing sediment package district 10 and the transportation district 20 of arranging, the vertical cross section on sediment package district 10 and the 20 ground of transportation district all is that both sides are high, the centre is low, and the crossing border that both high order sides constitute is the highest position, and sediment package district 10 and the 20 ground low level punishment in transportation district are equipped with the catch basin respectively.

As a preferred scheme, a slow cooling water collecting ditch 13 arranged at a low position on the ground of the slag ladle region 10 is communicated with a slow cooling water pool 30 through a pipeline; the rainwater collecting ditch 21 arranged at the ground low position of the transportation area 20 is communicated with the initial rainwater pool 40 through a pipeline; the rainwater collecting channel 21 is also communicated with an urban rainwater pipeline. The water storage capacity of catch basin is limited, consequently sets up slow cooling pond 30 and rainwater catch basin respectively, and experience through many years can know, and when raining, because there is certain impurity or pollutant on ground, rainwater about 15min probably in earlier stage, its quality of water is relatively poor, can not directly arrange urban rainwater pipeline, but than the slow cooling water quality of recycling, the processing degree of difficulty is also far lower, consequently, will earlier stage rainwater collect in the initial stage rainwater pond 40 independent processing.

Preferably, in order to save the space and avoid the accidental leakage caused by the exposed pipeline, the connecting pipeline between the water collecting channel and the slow cooling water pool 30 and/or the initial rainwater pool 40 and/or the urban rainwater pipeline is buried under the ground, as shown in fig. 1, the virtual line part between the slow cooling water collecting channel 13 and the slow cooling water pool 30 and the virtual line part between the rainwater collecting channel 21 and the initial rainwater pool 40 and the urban rainwater pipeline are connected, after the pipeline is buried under the ground, the above ground can be used as a transportation road or a worker activity area, and the workload of pipeline maintenance is reduced.

Preferably, in order to rationalize the field application of the slag slow cooling field, the slag ladle regions 10 are arranged at intervals in a strip shape, and the strip length directions are consistent. Wherein, sediment package district 10 has arranged spray set 11, sediment package position 12 and slow cold water catch basin 13 including taking the length direction, and sediment package position 12 corresponds along spray set 11 both sides and arranges, and slow cold water catch basin 13 sets up on the ground that spray set 11 is located. As shown in fig. 2.

Take the slag slow cooling field of bronze crown copper branch of bronze medal group of nonferrous metals limited company as an example, remove the slow cooling pond, the initial rainwater pond, the area of areas such as periphery transport corridor and workman's activity place, only calculate the transportation area occupation of land between cinder ladle district and be 210m wide 150m long, the length direction in cinder ladle district is place width direction, the total interval sets up 7 cinder ladle districts, every cinder ladle district spray set both sides set up 27 cinder ladle positions of 5m x 5m respectively, leave certain space between two vertical cinder ladle positions, in addition spray set occupies the space, a cinder ladle district approximately occupies the place of 150m wide 11m long, the transportation area width is about 19 m. When the site rains, rainwater in the first 15min is collected into an initial rainwater pool, rainwater in the second 15min flows into an urban rainwater pipeline to be discharged, and through calculation, more than 60% of rainwater is shunted after rainwater is shunted by the method, so that the sewage yield is greatly reduced, and the working pressure of a sewage treatment system is reduced.

Claims

1. A slag slow cooling field is characterized in that: including slag ladle district (10) and transportation district (20) that closely arrange, the vertical cross-section on slag ladle district (10) and transportation district (20) ground all is that both sides are high, the centre is low, and the crossing border that high position side between them constitutes is the highest position, and slag ladle district (10) and transportation district (20) ground low level punishment do not are equipped with the catch basin.

2. The slag slow cooling field according to claim 1, characterized in that: the slow cooling water collecting channel (13) arranged at the ground low position of the slag ladle area (10) is communicated with the slow cooling water pool (30) through a pipeline.

3. The slag slow cooling field according to claim 1, characterized in that: the rainwater collecting ditch (21) arranged at the ground low position of the transportation area (20) is communicated with the initial rainwater pool (40) through a pipeline.

4. The slag slow cooling field according to claim 3, characterized in that: the rainwater collecting ditch (21) is also communicated with an urban rainwater pipeline.

5. The slag slow cooling field according to claim 1, characterized in that: the slag ladle regions (10) are arranged at intervals in a strip shape, and the strip length directions are consistent.

6. The slag slow cooling field according to claim 5, characterized in that: the slag ladle region (10) comprises a spraying device (11), a slag ladle position (12) and a slow cooling water collecting ditch (13) which are arranged in the length direction, the slag ladle position (12) is correspondingly arranged along two sides of the spraying device (11), and the slow cooling water collecting ditch (13) is arranged on the ground where the spraying device (11) is located.

7. The slag slow cooling field according to claim 2, 3 or 4, characterized in that: the connecting pipeline of the water collecting ditch and the slow cooling water collecting tank (30) and/or the initial rainwater tank (40) and/or the urban rainwater pipeline is buried under the ground.