Device for removing metatitanic acid scaling in hydrolysis pot and method of using the same

Abstract

The present invention discloses a device for removing titanic acid scale from a hydrolysis pot, comprising: a hollow rotating shaft (1); a bag body (2), wherein the opening of the bag body is connected to the side of the hollow rotating shaft; a longitudinal skeleton (3), wherein the longitudinal skeleton is installed in the middle of the bag body to expand the bag body in a vertical direction; an axial skeleton (4), wherein one end of the axial skeleton is fixedly connected to the longitudinal skeleton, and the other end is fixedly connected to the end of the bag body away from the opening so that the bag body is expanded in a horizontal direction; a radial through hole (5), wherein the radial through hole is opened on the longitudinal skeleton and located between two adjacent axial skeletons; a sphere (6), wherein the sphere is located between two adjacent axial skeletons and the longitudinal skeleton; and an edge hole. The beneficial effect of the present invention is that the axial skeleton and the inner wall of the hydrolysis pot are rubbed by the rotation and expansion of the bagged structure, thereby breaking the scale in the hydrolysis pot, and at the same time, the cleaning water seeps out from the edge hole to clean the scale, and the sphere repeatedly collides with the inner wall of the hydrolysis pot to break and peel off the loose scale.

Description

Technical Field

[0001] The invention relates to the field of titanium dioxide production, and in particular to a device for removing metatitanic acid scaling in a hydrolysis pot and a use method thereof. Background Art

[0002] Titanium liquid hydrolysis is an important process in the production of titanium dioxide. The titanic acid colloid produced by the hydrolysis of titanium liquid has a high viscosity, causing 50-100 cm of hydrolysis solid phase to adhere to the inner wall of the hydrolysis pot, also known as hydrolysis scale. Because of its hard structure, high iron content, many calcium impurities, and difficulty in depolymerization, it is difficult to recycle and clean, affecting the quality of titanic acid. The effects of scaling on titanium liquid hydrolysis include: first, the accumulated hydrolysis scale contains some impurity elements that are harmful to the quality of titanium dioxide. After mixing with normal materials, it affects the quality of the product; second, it increases the difficulty and cost of manual cleaning. The cleaning of hydrolysis scale will inevitably stop the operation of the hydrolysis pot, wasting time and affecting production; third, it reduces the heating efficiency of titanium liquid and increases steam consumption; fourth, when a scaling layer is formed on the wall of the hydrolysis pot, it leads to increased resistance to stirring, thereby consuming more pump power and increasing costs.

[0003] However, the current cleaning method is to manually wipe the inner wall of the hydrolysis pot, which is time-consuming and labor-intensive. Due to the internal structure of the hydrolysis pot, it is difficult to effectively clean the scale.

[0004] China utility model patent publication number CN214611569U discloses a hydrolysis pot for reducing titanic acid scaling, including a pot body, a titanium liquid inlet is provided at the top of the pot body, a hydrolysis liquid outlet is provided at the bottom, and an anti-scaling coating is provided on the inner wall of the pot body; a stirring scraper assembly is provided in the pot body, and the stirring scraper assembly includes a stirring shaft, a stirring rod and a scraper, the stirring shaft is vertically arranged, the upper end of the stirring shaft is connected to the driving motor above the pot body, and the lower end extends into the pot body, the stirring rod is horizontally arranged on the stirring shaft, and the scraper is arranged at the free end of the stirring rod, and the scraper matches the inner wall of the pot body; an annular feed pipe is horizontally arranged on the upper part of the pot body, the annular feed pipe is arranged close to the inner wall of the pot body, and a liquid spray hole is provided on the side of the annular feed pipe adjacent to the inner wall of the pot body, and a seed feed pipeline and a water feed pipeline are connected to the annular feed pipe, and a flow meter and a booster pump are provided on the water feed pipeline. The hydrolysis pot is only used to reduce scaling but cannot avoid the generation of scaling, which is a temporary solution but not a permanent solution. The hydrolysis pot still needs to be cleaned after a long time.

[0005] Chinese invention patent publication number CN111495517A discloses a method for depolymerizing hydrolysis scale, which comprises mixing the hydrolysis scale with a ball milling medium, adding water, wet ball milling, and filtering with a sieve of 325 mesh or more to obtain a depolymerized material. However, it does not describe how to remove the hydrolysis scale from the hydrolysis pot. Summary of the invention

[0006] The technical problem to be solved by the present invention is that the scaling on the inner wall of the existing hydrolysis pot is inconvenient to clean, and for this purpose, a device for removing titanic acid scaling in a hydrolysis pot and a method for using the device are provided.

[0007] The technical solution of the present invention is: a device for removing titanic acid scaling in a hydrolysis pot, comprising: a hollow rotating shaft; a bag body, the opening of the bag body is connected to the side of the hollow rotating shaft; a longitudinal skeleton, the longitudinal skeleton is installed in the middle of the bag body to expand the bag body in the vertical direction; an axial skeleton, one end of the axial skeleton is fixedly connected to the longitudinal skeleton, and the other end is fixedly connected to the end of the bag body away from the opening so that the bag body can be expanded in the horizontal direction; a radial through hole, the radial through hole is opened on the longitudinal skeleton and located between two adjacent axial skeletons; a sphere, the sphere is located between two adjacent axial skeletons and the longitudinal skeleton, the outer diameter of the sphere is larger than the inner diameter of the radial through hole; an edge hole, the edge holes are evenly opened at the end of the bag body away from the opening, and the inner diameter of the edge hole is smaller than the outer diameter of the sphere.

[0008] The axial skeleton in the above solution is a telescopic rod.

[0009] In the above solution, the end of the axial skeleton away from the hollow shaft is a pointed tip.

[0010] In the above scheme, cleaning water is stored in the control shaft.

[0011] The improvement of the above scheme is that the top of the hollow shaft is transmission-connected to the driving mechanism, and the bottom is connected to the water source.

[0012] The method for using the device for removing titanic acid scaling in a hydrolysis pot comprises the following steps: removing a stirring shaft, a stirring rod and a scraper in the hydrolysis pot, installing a hollow rotating shaft in the hydrolysis pot, filling the hollow rotating shaft with cleaning water, starting the hollow rotating shaft, the hollow rotating shaft drives the bag body to rotate, the axial skeleton contacts the inner wall of the hydrolysis pot, the cleaning water sprays out from the edge hole, and at the same time the sphere collides with the inner wall of the hydrolysis pot to peel off the scaling on the inner wall of the hydrolysis pot.

[0013] The beneficial effect of the present invention is that the axial skeleton rubs against the inner wall of the hydrolysis pot through the rotation and expansion of the bagged structure, thereby breaking the scale in the hydrolysis pot. At the same time, cleaning water seeps out from the edge holes to clean the scale, and the spheres repeatedly collide with the inner wall of the hydrolysis pot to break and peel off the loose scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a device for removing titanic acid scaling in a hydrolysis pot according to the present invention;

[0015] In the figure, 1. hollow shaft, 2. bag body, 3. longitudinal skeleton, 4. axial skeleton, 5. radial through hole, 6. sphere. DETAILED DESCRIPTION

[0016] The technical scheme of the present invention is described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0017] The device for removing titanic acid scale in a hydrolysis pot comprises: a hollow rotating shaft 1, which is used to replace the rotating shaft in the hydrolysis pot; a bag body 2, wherein the opening of the bag body is connected to the side of the hollow rotating shaft, the bag body is made of a material with good elasticity such as rubber or nylon, and can be unfolded into a cone when the bag body is driven to rotate by the hollow rotating shaft; a longitudinal skeleton 3, which is installed in the middle of the bag body to unfold the bag body in a vertical direction; an axial skeleton 4, wherein one end of the axial skeleton is fixedly connected to the longitudinal skeleton, and the other end is fixedly connected to an end of the bag body away from the opening so that the bag body can be unfolded in a horizontal direction, and there are several such axial skeletons; a radial through hole 5, which is provided on the longitudinal skeleton and located between two adjacent axial skeletons; a sphere 6, which is located between two adjacent axial skeletons and the longitudinal skeleton, the outer diameter of the sphere is larger than the inner diameter of the radial through hole, and can be a high-hardness bead such as a zirconium silicate bead, a zirconium oxide bead, a ceramic bead, etc.; an edge hole, which is evenly provided at the end of the bag body away from the opening, and the inner diameter of the edge hole is smaller than the outer diameter of the sphere.

[0018] As a preferred example of the present invention, the axial skeleton is a telescopic rod, which includes a base and a telescopic head. The telescopic head contacts the inner wall of the hydrolysis pot, and the telescopic head is connected to the base via a spring.

[0019] As a preferred embodiment of the present invention, the end of the axial skeleton away from the hollow rotating shaft is a pointed tip, which facilitates the destruction of scaling on the inner wall of the hydrolysis pot.

[0020] As a preferred example of the present invention, the top of the hollow shaft is transmission-connected to the driving mechanism, and the bottom is connected to a water source, which may be a high-pressure water source, so that it has a higher impact speed when rushing out from the edge hole.

Claims

1. A device for removing titanic acid scaling from a hydrolysis pot, characterized in that it comprises: A hollow rotating shaft (1); a bag body (2), wherein the opening of the bag body is connected to the side of the hollow rotating shaft; a longitudinal frame (3), wherein the longitudinal frame is installed in the middle of the bag body to expand the bag body in a vertical direction; an axial frame (4), wherein one end of the axial frame is fixedly connected to the longitudinal frame, and the other end is fixedly connected to the end of the bag body away from the opening so that the bag body can be expanded in a horizontal direction; a radial through hole (5), wherein the radial through hole is opened on the longitudinal frame and located between two adjacent axial frames; a sphere (6), wherein the sphere is located between two adjacent axial frames and the longitudinal frame, and the outer diameter of the sphere is greater than the radial through hole (6). The inner diameter of the through hole; the edge holes, the edge holes are evenly arranged at one end of the bag body away from the opening, the inner diameter of the edge holes is smaller than the outer diameter of the sphere, and the method for using the device for removing titanic acid scaling in a hydrolysis pot comprises the following steps: removing the stirring shaft, stirring rod and scraper in the hydrolysis pot, installing a hollow rotating shaft in the hydrolysis pot, filling the hollow rotating shaft with cleaning water, starting the hollow rotating shaft, the hollow rotating shaft drives the bag body to rotate, the axial skeleton contacts the inner wall of the hydrolysis pot, the cleaning water sprays out from the edge holes, and at the same time the sphere collides with the inner wall of the hydrolysis pot to peel off the scaling on the inner wall of the hydrolysis pot.

2. The device for removing titanic acid scaling in a hydrolysis pot as claimed in claim 1, characterized in that: The axial skeleton is a telescopic rod.

3. The device for removing titanic acid scaling in a hydrolysis pot as claimed in claim 1, characterized in that: One end of the axial skeleton away from the hollow rotating shaft is a pointed head.

4. The device for removing titanic acid scaling in a hydrolysis pot as claimed in claim 1, characterized in that: Cleaning water is stored in the hollow rotating shaft.

5. The device for removing titanic acid scaling in a hydrolysis pot as claimed in claim 1, characterized in that: The top of the hollow rotating shaft is transmission-connected with the driving mechanism, and the bottom is connected with the water source.

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