CN213049514U

CN213049514U - Defoaming and anti-overflow device for thickener

Info

Publication number: CN213049514U
Application number: CN202021848306.XU
Authority: CN
Inventors: 周振华; 张作金; 陈海彬; 杨帅峰; 陆洪放; 刘斌; 张庆丰
Original assignee: Chengde Baotong Mining Co ltd
Current assignee: Chengde Baotong Mining Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-27
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a defoaming and anti-overflow device of a thickener, which comprises a thickener clarification tank, a thickener rotary mud scraping rake and an overflow baffle, wherein the top of the thickener clarification tank is provided with an overflow surface, and the top edge of the overflow baffle is higher than the overflow surface; a defoaming baffle is arranged in the thickener clarification tank through a support rod, a circle of high-pressure spraying defoaming main pipeline is arranged on the inner side of the defoaming baffle, and a plurality of high-pressure spraying pipes extending to the center of the thickener clarification tank are arranged on the high-pressure spraying defoaming main pipeline; the bottom of the defoaming baffle is 4-6cm lower than the overflow surface, and the top is 9-11cm higher than the overflow surface. The utility model effectively avoids the formation of a large amount of foam on the top of the thickener by foam dissipation through the impact of high-pressure water flow; and the foam is gathered in the inner range through the defoaming baffle, the bottom of the defoaming baffle is lower than the overflow surface by 4-6cm, and the top of the defoaming baffle is higher than the overflow surface by 9-11cm, so that the foam is prevented from overflowing along with the clarified water to the maximum extent and the backwater quality is prevented from being influenced.

Description

Defoaming and anti-overflow device for thickener

Technical Field

The utility model relates to a thickener field especially relates to a thickener defoaming and anti-overflow device.

Background

At present, more minerals are selected for flotation, and tailings after flotation are concentrated under the action of a thickener to obtain clear backwater for recycling in a workshop. However, as the flotation reagent is continuously accumulated on the upper layer of the thickener, a foam layer with the thickness of about 2-5 cm is formed, a large amount of foam easily enters return water, and the quality of the return water is affected.

The common existing defoaming method is to eliminate foam through a simple spraying measure, but the method only eliminates partial foam in the practical application process, and cannot avoid the foam entering clarified water along with an overflow trough. Treatment is also carried out by adding a defoaming agent, and the method can cause the defoaming agent to be continuously accumulated in water after adding the agent, and finally influences the flotation of minerals, and the method can increase the cost to a large extent.

Therefore, it is necessary to ensure that the foam does not leak while defoaming, and a defoaming and anti-overflow device of a thickener is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a thickener defoaming and anti-overflow device for solve the problem that the foam enters into the clarification aquatic along with the overflow launder.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a defoaming and anti-overflow device for a thickener, which comprises a thickener clarification tank, a thickener rotary mud scraping rake arranged in the thickener clarification tank and an overflow baffle arranged outside the thickener clarification tank, wherein the top of the thickener clarification tank is provided with an overflow surface, and the top edge of the overflow baffle is higher than the overflow surface; a defoaming baffle is arranged in the thickener clarification tank through a support rod, a circle of high-pressure spraying defoaming main pipeline is arranged on the inner side of the defoaming baffle, and a plurality of high-pressure spraying pipes extending to the center of the thickener clarification tank are arranged on the high-pressure spraying defoaming main pipeline; the bottom of the defoaming baffle is 4-6cm lower than the overflow surface, and the top of the defoaming baffle is 9-11cm higher than the overflow surface.

Furthermore, both ends all are provided with adjusting baffle about the defoaming baffle.

And furthermore, the upper and lower adjusting baffles are nested outside the defoaming baffle and are in threaded connection with the defoaming baffle.

And further, the vertical distance between the defoaming baffle and the inner side surface of the thickener clarification tank is 5-10 cm.

Still further, each high-pressure spray pipe is provided with a valve.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows:

the utility model effectively avoids the formation of a large amount of foam on the top of the thickener by foam dissipation through the impact of high-pressure water flow; and the foam is gathered in the inner range through the defoaming baffle, the bottom of the defoaming baffle is lower than the overflow surface by 4-6cm, and the top of the defoaming baffle is higher than the overflow surface by 9-11cm, so that the foam is prevented from overflowing along with the clarified water to the maximum extent and the backwater quality is prevented from being influenced.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic top view of the defoaming and overflow preventing device of the thickener of the present invention;

FIG. 2 is a schematic longitudinal sectional view of the defoaming and overflow preventing device of the thickener of the present invention;

FIG. 3 is a schematic view of the high pressure shower structure of the present invention;

description of reference numerals: 1. a thickener clarifier; 2. the thickener rotates to scrape mud rake; 3. an overflow baffle; 4. an overflow surface; 5. a support bar; 6. a defoaming baffle plate; 7. a high-pressure spraying defoaming main pipeline; 8. a high pressure spray pipe; 9. adjusting the baffle; 10. and (4) a valve.

Detailed Description

As shown in fig. 1-3, a concrete embodiment of a defoaming and anti-overflow device for a thickener comprises a thickener clarifier 1 and a thickener rotary mud scraping rake 2 installed in the thickener clarifier 1, which is the prior art and will not be described herein again. The thickener clarification tank also comprises an overflow baffle 3 fixed on the outer side of the thickener clarification tank 1, and the longitudinal section of the overflow baffle is L-shaped. The top of the thickener clarification tank 1 is provided with an overflow surface 4, and the top edge of the overflow baffle 3 is higher than the overflow surface 4, so that clarified water flowing into the overflow baffle over the overflow surface is prevented from overflowing the top edge of the overflow baffle. 1 inside of thickener depositing reservoir is fixed with defoaming baffle 6 through bracing piece 5, 6 inboards of defoaming baffle are equipped with round high pressure and spray defoaming main line 7, and high pressure sprays defoaming main line 7 can follow the perforation entering on the defoaming baffle lateral wall, then spirals the round in the defoaming baffle inboard. In this embodiment the high pressure sprays defoaming main line 7 and is last to be installed four high pressure spray 8 that extend to thickener clarifier 1 center, certainly the high pressure spray quantity of high pressure spray defoaming main line can set up according to actual need, simultaneously every all install valve 10 on the high pressure spray 8, can select to open the high pressure spray of suitable quantity according to on-the-spot foam volume and carry out the defoaming.

In order to avoid foam with clear water to the maximum extent, the bottom of the defoaming baffle 6 is 4-6cm lower than the overflow surface, and the top is 9-11cm higher than the overflow surface. Adjusting baffle 9, two from top to bottom are all installed at defoaming baffle 6 upper and lower both ends adjusting baffle 9 is all nested in the 6 outsides of defoaming baffle, and two upper and lower adjusting baffle 9 inboards have the internal thread, and the defoaming baffle outside has the external screw thread, and two adjusting baffle 9 and 6 threaded connection of defoaming baffle can adjust the top of defoaming baffle and the height of bottom apart from the overflow face through the mode of rotatory upper and lower adjusting baffle, avoid the foam to spill over to the at utmost.

The vertical distance between the defoaming baffle 6 and the inner side surface of the thickener clarification tank 1 is 5-10cm, so that the outflow of clarified water is not influenced.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a thickener defoaming and anti-overflow device, includes thickener depositing reservoir (1) and sets up rotatory mud rake (2) of scraping of thickener in thickener depositing reservoir (1), its characterized in that: the device is characterized by also comprising an overflow baffle (3) arranged on the outer side of the thickener clarifier (1), wherein the top of the thickener clarifier (1) is provided with an overflow surface (4), and the edge of the top of the overflow baffle (3) is higher than the overflow surface (4); a defoaming baffle (6) is arranged in the thickener clarification tank (1) through a support rod (5), a circle of high-pressure spraying defoaming main pipeline (7) is arranged on the inner side of the defoaming baffle (6), and a plurality of high-pressure spraying pipes (8) extending to the center of the thickener clarification tank (1) are arranged on the high-pressure spraying defoaming main pipeline (7); the bottom of the defoaming baffle (6) is 4-6cm lower than the overflow surface (4), and the top is 9-11cm higher than the overflow surface (4).

2. The defoaming and anti-overflow device for a thickener according to claim 1, which is characterized in that: and the upper end and the lower end of the defoaming baffle (6) are provided with adjusting baffles (9).

3. The defoaming and anti-overflow device of a thickener according to claim 2, which is characterized in that: the upper and lower adjusting baffles (9) are all nested at the outer side of the defoaming baffle (6), and the upper and lower adjusting baffles (9) are in threaded connection with the defoaming baffle (6).

4. The defoaming and anti-overflow device for a thickener according to claim 1, which is characterized in that: the vertical distance between the defoaming baffle (6) and the inner side surface of the thickener clarification tank (1) is 5-10 cm.

5. The defoaming and anti-overflow device for a thickener according to claim 1, which is characterized in that: each high-pressure spray pipe (8) is provided with a valve (10).