CN216877992U

CN216877992U - Titanium liquid settling equipment used in titanium dioxide production process

Info

Publication number: CN216877992U
Application number: CN202220445397.5U
Authority: CN
Inventors: 李维健; 钱笑雄
Original assignee: Anhui Dino Environmental Protection New Material Technology Co ltd
Current assignee: Anhui Dino Environmental Protection New Material Technology Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-05
Anticipated expiration: 2032-03-03

Abstract

The utility model discloses titanium liquid sedimentation equipment used in the production process of titanium dioxide, which comprises the following steps: a sedimentation tank body (1); the cover plate (2) is positioned at the top of the sedimentation tank body; the titanium liquid feeding pipeline (3) penetrates through the cover plate and extends into the sedimentation tank body; the hydrogen sulfide adsorber (4) is communicated with the interior of the sedimentation tank body through an exhaust pipeline penetrating through the cover plate; and the mud discharge valve (5) is communicated with the bottom of the sedimentation tank. The utility model has the advantages that the possibility that a large amount of hydrogen sulfide gas is released to harm the physical health of post workers in the normal use and cleaning processes of the sedimentation tank is solved; the problem of environmental protection of unorganized discharge of hydrogen sulfide gas in the sedimentation tank is solved, the hydrogen sulfide after adsorption and removal is directly discharged into the atmosphere, and the influence on the atmospheric environment is basically avoided; the pressure sensor and the liquid level alarm are arranged for double insurance, so that the sedimentation liquid level can be timely controlled and adjusted, and the overflowing accident can be prevented.

Description

Titanium liquid settling equipment used in titanium dioxide production process

Technical Field

The utility model relates to the technical field of titanium dioxide production equipment, in particular to titanium liquid sedimentation equipment used in a titanium dioxide production process.

Background

The titanium liquid is discharged into a sedimentation tank after being reduced in an acidolysis pot, a flocculating agent is added, and the clear titanium liquid floats upwards and insoluble impurities and colloidal particles (hereinafter collectively referred to as sludge) in the titanium liquid sink through gravity sedimentation. The purpose of obtaining the titanium cleaning liquid is achieved. Most of the existing sedimentation tanks are open tanks, titanium liquid releases a large amount of hydrogen sulfide gas in the process of discharging into the sedimentation tanks, and the high-concentration hydrogen sulfide gas can cause irreversible damage to human bodies. And the bottom of the sedimentation tank is easy to accumulate sludge in use, and needs to be cleaned periodically by manpower, and potential safety hazards also exist in the cleaning process.

The utility model discloses a chinese utility model patent publication No. CN214344624U discloses a sedimentation tank for acid hydrolysis titanium liquid, including a plurality of sedimentation tank main parts, sedimentation tank main part bottom just has the bottom pit in the lower department in center for the slope structure, sedimentation tank main part top is equipped with the inlet tube, be equipped with the water intaking valve on the inlet tube, the sedimentation tank main part is equipped with mud transfer pump outward, mud transfer pump import passes through inlet pipe and sedimentation tank main part bottom pit intercommunication, be equipped with the feed valve on the inlet pipe, mud transfer pump export is equipped with the discharging pipe, the discharging pipe end is equipped with recoil pipe and transfer pipe, be equipped with the recoil valve on the recoil pipe, the recoil pipe end communicates to in the sedimentation tank main part through the hose, be equipped with the transfer valve on the transfer pipe, transfer pipe end and mud transfer groove intercommunication. The sedimentation tank still adopts an open design, hydrogen sulfide gas can be discharged, and when the slurry at the bottom of the sedimentation tank is cleaned, then the feed valve 41 and the transfer valve 521 are opened and the recoil valve 511 is closed, the slurry transfer pump 3 is started to transfer the slurry into the slurry transfer tank 6, the slurry transfer pump 3 is stopped after the slurry transfer is finished, the feed valve 41 and the transfer valve 521 are closed, when the mud deposited on the inclined plane at the bottom of the main body of the sedimentation tank can not be rotated away, the recoil valve 511 is opened to a proper opening degree, the transfer valve 521 is closed, the mud transfer pump 3 is started, then a worker holds the hose by hand to perform backflushing on the mud deposited on the inclined plane at the bottom of the sedimentation tank, the transfer valve 521 is properly opened after the backflushing, until the mud deposited on the inclined plane at the bottom of the sedimentation tank is completely transferred into the mud transfer groove 6, and stopping the slurry transferring pump 3, closing the feeding valve 41, the transferring valve 521 and the backflushing valve 511 to complete the slurry transferring, but the flushing effect by the slurry transferring pump and the backflushing valve is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that a large amount of hydrogen sulfide gas can overflow from the existing titanium liquid sedimentation tank to harm human bodies, and the effect of a desilting method at the bottom of the sedimentation tank is poor, so that the titanium liquid sedimentation equipment used in the production process of titanium dioxide is provided.

The technical scheme of the utility model is as follows: a titanium liquid settling equipment for in titanium white powder production process includes: settling the pond body; the cover plate is positioned at the top of the sedimentation tank body; the titanium liquid feeding pipeline penetrates through the cover plate and extends into the sedimentation tank body; the hydrogen sulfide adsorber is communicated with the interior of the sedimentation tank body through an exhaust pipeline penetrating through the cover plate; and the mud discharge valve is communicated with the bottom of the sedimentation tank.

In the scheme, the hydrogen sulfide adsorber is communicated with the tail gas fan.

The improvement of the scheme is that a high-pressure spray head is arranged at the upper part in the sedimentation tank body.

In the scheme, the sedimentation tank body comprises a cylindrical tank body and a conical tank bottom.

In the scheme, the vertex of the conical pool bottom faces downwards, the bottom face faces upwards, and the included angle between the side face and the bottom face of the conical pool bottom is 30 degrees.

The other improvement of the scheme is that the inner wall of the sedimentation tank body is provided with a liquid level alarm, and the bottom of the sedimentation tank body is provided with a pressure sensor.

Another improvement of the scheme is that a flushing pipeline and a flushing valve are connected between the mud valve and the bottom of the sedimentation tank.

The utility model has the advantages that the possibility that a great amount of hydrogen sulfide gas is released to harm the body health of post workers in the normal use and cleaning processes of the sedimentation tank is solved; the problem of environmental protection of unorganized discharge of hydrogen sulfide gas in the sedimentation tank is solved, the hydrogen sulfide after adsorption and removal is directly discharged into the atmosphere, and the influence on the atmospheric environment is basically avoided; the pressure sensor and the liquid level alarm are arranged for double insurance, so that the sedimentation liquid level is controlled and adjusted in time, and the overflowing accident is prevented; the upper part in the sedimentation tank is provided with a high-pressure spray head, and the sedimentation tank is cleaned by spraying high-pressure water flow along the tank wall. And through pressure sensor, can know directly perceivedly whether the mud of sedimentation tank bottom is cleared up, save artifical affirmation, it is more automatic.

Drawings

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

in the figure, 1, a sedimentation tank body, 11, a cylindrical tank body, 12, a conical tank bottom, 2, a cover plate, 3, a titanium liquid feeding pipeline, 4, a hydrogen sulfide adsorber, 5, a mud discharge valve, 6, a tail gas fan, 7, a high-pressure spray head, 8, a liquid level alarm, 9, a pressure sensor, 10, a flushing valve, 13 and a mud pump.

Detailed Description

The technical scheme in the embodiment of the utility model is clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments based on the embodiments in the present invention, without any inventive work, will be apparent to those skilled in the art from the following description.

As shown in fig. 1, the present invention includes: a sedimentation tank body 1; the cover plate 2 is positioned at the top of the sedimentation tank body; a titanium liquid feeding pipeline 3, which penetrates through the cover plate and extends into the sedimentation tank body; the hydrogen sulfide adsorber 4 is communicated with the interior of the sedimentation tank body through an exhaust pipeline penetrating through the cover plate; and the mud discharge valve 5 is communicated with the bottom of the sedimentation tank.

The sedimentation tank body comprises a cylindrical tank body 11 and a conical tank bottom 12. The vertex of the conical pond bottom faces downwards, the bottom face faces upwards, the included angle between the side face of the conical pond bottom and the bottom face is 30 degrees, and the large inclined angle is favorable for guiding sludge at the pond bottom. So that the mud can better flow into a mud pipeline and is pumped into the filter.

The cover plate is used for sealing all the openings of the sedimentation tank except for the openings of the titanium liquid feeding pipeline, the material discharging pipeline, the air duct, the flushing pipeline and the observation port. One end of the hydrogen sulfide adsorber is connected with the sedimentation tank through an exhaust pipeline, and the other end of the hydrogen sulfide adsorber is connected with the tail gas fan through a pipeline. One end of the tail gas fan is connected with the hydrogen sulfide adsorber through a pipeline, and the other end of the tail gas fan is connected with the acidolysis main flue.

The bottom of the sedimentation tank is connected with a slurry pipeline, and the other end of the slurry pipeline is connected with a slurry pump 13. A mud valve 5 is arranged on a pipeline between the mud pump and the bottom of the sedimentation tank, a flushing pipeline is connected between the mud valve and the bottom of the sedimentation tank, and a flushing valve 10 is arranged on the flushing pipeline. The other end of the mud pump is connected with a filter through a pipeline.

The sedimentation tank body comprises a cylindrical tank body 11 and a conical tank bottom 12, the vertex of the conical tank bottom faces downwards, the bottom face faces upwards, and the included angle between the side face and the bottom face of the conical tank bottom is 30 degrees.

As a preferred example of the utility model, a pressure sensor 9 is arranged at a position near the bottom of the sedimentation tank, a liquid level alarm 8 is arranged on the inner wall of the sedimentation tank body, and the sedimentation liquid level is timely controlled and adjusted by double insurance of the pressure sensor and the liquid level alarm, so that the overflowing accident is prevented.

As another preferred example of the utility model, the sedimentation tank body is internally and upwardly provided with a high-pressure spray head 7, the sedimentation tank body is cleaned by spraying high-pressure water flow along the tank wall, and the pressure sensor is combined, so that whether the sludge at the bottom of the sedimentation tank is cleaned can be visually known.

The using method of the utility model is as follows: the tail gas fan is normally opened to keep negative pressure in the sedimentation tank, and gas in the sedimentation tank passes through the hydrogen sulfide adsorber to be adsorbed and removed and then is discharged into the main flue. After reduction, the titanium liquid added with the flocculating agent is put into a sedimentation tank through a feeding pipeline, meanwhile, the liquid level in the tank is monitored in real time through a liquid level alarm instrument and a pressure sensor, and the titanium liquid discharging is stopped after the liquid level reaches a certain height. After the clear titanium liquid and the sludge are settled and separated, the upper layer of the clear titanium liquid is pulled into the next procedure by a floating barrel through a discharge pipeline. A large amount of mud and partial titanium liquid are left in the pool, the mud valve and the mud pump on the mud pipeline are opened, the mud is pumped into a filter through the mud pipeline, and the filtrate is sent to another sedimentation pool for recycling. When the mud in the pool is blocked and the mud pump can not drive the mud into the filter, the high-pressure spray nozzle on the wall of the sedimentation pool is opened to disperse and dilute the blocked mud, and the mud in the pool can be emptied under normal conditions. If the blockage cannot be cleared, the flushing valve is opened, the mud discharge valve and the mud pump are closed, and the bottom blockage mud is flushed by water flow. After the flushing, the flushing valve is closed, the mud discharge valve and the mud pump are opened, and the mud is pumped into the filter. Water has influence on the quality of the titanium liquid, and the flushing amount is reduced as much as possible in the actual operation. Whether residual slurry exists in the tank can be judged by observing the display number of the pressure sensor and the water outlet condition of the filter.

Claims

1. A titanium liquid settlement equipment for in titanium white powder production process, characterized by: the method comprises the following steps: a sedimentation tank body (1); the cover plate (2) is positioned at the top of the sedimentation tank body; the titanium liquid feeding pipeline (3) penetrates through the cover plate and extends into the sedimentation tank body; the hydrogen sulfide adsorber (4) is communicated with the interior of the sedimentation tank body through an exhaust pipeline penetrating through the cover plate; and the mud discharge valve (5) is communicated with the bottom of the sedimentation tank.

2. The titanium liquid settling equipment used in the titanium dioxide production process as claimed in claim 1, which is characterized in that: the hydrogen sulfide adsorber is communicated with a tail gas fan (6).

3. The titanium liquid settling equipment used in the titanium dioxide production process as claimed in claim 1, which is characterized in that: a high-pressure spray head (7) is arranged at the upper part in the sedimentation tank body.

4. The titanium liquid settling equipment used in the titanium dioxide production process as claimed in claim 1, which is characterized in that: the sedimentation tank body comprises a cylindrical tank body (11) and a conical tank bottom (12).

5. The titanium liquid sedimentation equipment for titanium dioxide production process according to claim 4, characterized in that: the top point of the conical pool bottom faces downwards, the bottom face of the conical pool bottom faces upwards, and an included angle between the side face and the bottom face of the conical pool bottom is 30 degrees.

6. The titanium liquid settling equipment used in the titanium dioxide production process as claimed in claim 1, which is characterized in that: the inner wall of the sedimentation tank body is provided with a liquid level alarm (8), and the bottom of the sedimentation tank body is provided with a pressure sensor (9).

7. The titanium liquid settling equipment used in the titanium dioxide production process as claimed in claim 1, which is characterized in that: a flushing pipeline and a flushing valve (10) are connected between the mud valve and the bottom of the sedimentation tank.