Device for assisting acidolysis mud precipitation

Abstract

The device comprises a vertically arranged sedimentation tank, the upper end of the sedimentation tank is provided with an opening, a space for settling titanium liquid and slurry is arranged in the sedimentation tank, the space at the upper, middle and lower parts of the inner wall of the sedimentation tank is a cylinder, and the space at the bottom of the inner wall of the sedimentation tank is a cone; the bottom of the sedimentation tank is communicated with a vertically-arranged deslagging structure, the top of the sedimentation tank is connected with a vertically-downwards-arranged mixing mechanism, the upper end of the mixing mechanism is located above the sedimentation tank, the lower end of the mixing mechanism is located in the sedimentation tank, and the central axis of the mixing mechanism, the central axis of the deslagging structure and the axis of the sedimentation tank are collinear; the two sides of the bottom of the sedimentation tank are fixed to the foundation respectively, so that the problem that an existing acidolysis titanium solution enters the sedimentation tank and is difficult to be fully mixed with a sedimentation agent again is solved, and the problem that existing slurry is difficult to quickly clean after sedimentation is also solved.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary acid hydrolysis mud precipitation and relates to a device for auxiliary acid hydrolysis mud precipitation. Background Art

[0002] After the acid-hydrolyzed titanium liquid is cooled, it is output from the bottom of the acid-hydrolyzed pot and preliminarily mixed with the sedimentation agent on the output pipe. The discharge temperature of the acid-hydrolyzed titanium liquid is about 70°C. No cooling device is involved except for natural cooling. After mixing, it is transported to the sedimentation tank for further sedimentation. The sedimentation agent is added in proportion according to the amount of the acid-hydrolyzed titanium liquid. The cooled mixture of the acid-hydrolyzed titanium liquid and the sedimentation agent is continuously precipitated in the sedimentation tank. The sedimentation time is 2 to 4 hours to obtain an upper clear liquid and a lower mud. The upper clear liquid is pumped away by a submersible pump and then transported to a plate filter for fine filtration to finally obtain a clear titanium liquid. The mud generated during the sedimentation of the acid-hydrolyzed titanium liquid gradually settles to the bottom of the sedimentation tank. The clear liquid is pumped away and then the mud at the bottom is pumped away by a slurry pump.

[0003] However, the bottom of the large sedimentation tank in existing industrial production is set horizontally, which makes it difficult to extract the remaining mud. In addition, since the titanium liquid mud is a hazardous chemical, it is difficult for workers to enter the bottom of the sedimentation tank to clean the mud. In addition, the sedimentation agent is only preliminarily mixed with the acid-hydrolyzed titanium liquid, which cannot achieve the purpose of fully mixing the acid-hydrolyzed titanium liquid and the sedimentation agent. Therefore, in order to solve the above-mentioned technical problems, the technical solution of the present application is set up. Utility Model Content

[0004] The purpose of the utility model is to provide a device for assisting acid hydrolysis sludge precipitation, thereby solving the above-mentioned technical problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A device for assisting acid hydrolysis mud sedimentation comprises a vertically arranged sedimentation tank, the upper end of which is open and has a space for settling titanium liquid and mud inside, the space in the upper, middle and lower parts of the inner wall of the sedimentation tank is cylindrical, the space at the bottom of the inner wall of the sedimentation tank is cone, the bottom of the sedimentation tank is connected to a vertically arranged slag discharge structure, the top of the sedimentation tank is connected to a vertically downwardly arranged mixing mechanism, the upper end of the mixing mechanism is located above the sedimentation tank, the lower end of the mixing mechanism is located inside the sedimentation tank, the central axis of the mixing mechanism is in line with the central axis of the slag discharge structure and the axis of the sedimentation tank, and the two sides of the bottom of the sedimentation tank are respectively fixed to the foundation.

[0007] The working principle of the utility model is as follows: the present application improves the shape and structure of the inner wall of the existing sedimentation tank, and sets the space in the upper, middle and lower parts of the inner wall of the sedimentation tank as a cylinder, so that the acid-hydrolyzed titanium liquid and the sedimentation agent are temporarily stored in the upper, middle and lower parts of the inner wall of the sedimentation tank, and then works through a mixing mechanism, and drives the acid-hydrolyzed titanium liquid and the sedimentation agent to be mixed again through the mixing mechanism, so that the acid-hydrolyzed titanium liquid is fully mixed with the sedimentation agent during the sedimentation process, and the mixed mud settles to the lower part and the bottom of the sedimentation tank, and sets the space at the bottom of the inner wall of the sedimentation tank as a cone, so as to facilitate the gathering of the settled mud, and the titanium liquid on the upper layer of the sedimentation tank is pumped away, and the remaining mud is discharged through the slag discharge structure, and the shape of the bottom of the sedimentation tank facilitates the discharge of a part of the mud to be gathered again under the action of gravity, so that the purpose of quickly cleaning the mud is achieved through the slag discharge structure, and the problem that the existing acid-hydrolyzed titanium liquid is difficult to be fully mixed with the sedimentation agent again after entering the sedimentation tank is solved, and the problem that the existing mud is difficult to be quickly cleaned after sedimentation is solved.

[0008] Furthermore: the slag discharge structure includes vertically arranged slag discharge pipes, the slag discharge pipes are connected with an on-off valve, the on-off valve is located on a side close to the bottom of the sedimentation tank, and the bottom of the slag discharge pipe is connected with a mud discharge structure.

[0009] Furthermore: the mud discharge structure includes a slurry pump, the slurry pump is located on one side of the bottom of the sedimentation tank, one end of the slurry pump is connected to a mud suction pipe, the upper end of the mud suction pipe is connected to the slag discharge pipe, and the other end of the slurry pump is connected to the mud discharge pipe.

[0010] Furthermore: the mixing mechanism includes a horizontally arranged support plate, the two ends of the support plate are respectively connected to the two sides of the top of the sedimentation tank, the upper end surface of the support plate is connected to a vertically arranged support frame, the top of the support frame is connected to a drive motor, the inside of the drive motor is connected to a drive shaft, the lower end of the drive shaft is connected to a mixing shaft, the lower end of the mixing shaft is located at the lower part of the inner wall of the sedimentation tank, and the bottom of the mixing shaft is connected to a mixing blade.

[0011] Furthermore: a reducer is provided between the driving shaft and the mixing shaft, the reducer is vertically arranged and connected to the support frame, the upper end of the reducer is connected to the lower end of the driving shaft, the lower end of the reducer is connected to the transmission shaft, the lower end of the transmission shaft passes through the support plate and is connected to the upper end of the mixing shaft.

[0012] Furthermore: a vertically arranged buffer cylinder is connected to the outer wall of the mixing shaft, the buffer cylinder is located in the middle and upper part of the sedimentation tank, the space on the inner wall of the buffer cylinder is cylindrical and the upper end is open, and a plurality of through holes are evenly distributed on the buffer cylinder for the acid-hydrolyzed titanium liquid to enter the sedimentation tank.

[0013] Furthermore: a feed pipe is connected to the support plate, and a discharge end of the feed pipe is vertically arranged and located above the buffer cylinder.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. A device for assisting acid hydrolysis sludge precipitation, which drives the acid hydrolysis titanium liquid and the sedimentation agent to mix again through a mixing mechanism, so that the acid hydrolysis titanium liquid is fully mixed with the sedimentation agent during the sedimentation process, and the mixed sludge settles to the lower part and bottom of the sedimentation tank, while the upper titanium liquid is pumped away by a delivery pump;

[0016] 2. In the utility model, the shape of the bottom of the sedimentation tank facilitates the discharge of a portion of the mud and allows it to be gathered again under the action of gravity, so that the purpose of quickly cleaning the mud is achieved through the slag discharge structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work, including:

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Markings in the figure: 1-sedimentation tank, 2-slag discharge pipe, 3-opening and closing valve, 4-support plate, 5-support frame, 6-driving motor, 7-driving shaft, 8-mixing shaft, 9-mixing blades, 10-reducer, 11-transmission shaft, 12-buffer cylinder, 13-through hole, 14-feeding pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0023] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0024] Embodiment 1

[0025] The utility model provides a device for assisting acid hydrolysis sludge precipitation, such as Figure 1 As shown, it includes a vertically arranged sedimentation tank 1, the upper end of which is open and has a space for settling titanium liquid and mud inside, the space in the upper, middle and lower parts of the inner wall of the sedimentation tank 1 is cylindrical, the space at the bottom of the inner wall of the sedimentation tank 1 is cone, the bottom of the sedimentation tank 1 is connected to a vertically arranged slag discharge structure, the top of the sedimentation tank 1 is connected to a mixing mechanism arranged vertically downward, the upper end of the mixing mechanism is located above the sedimentation tank 1, the lower end of the mixing mechanism is located inside the sedimentation tank 1, the central axis of the mixing mechanism is colinear with the central axis of the slag discharge structure and the axis of the sedimentation tank 1, and the two sides of the bottom of the sedimentation tank 1 are respectively fixed to the foundation.

[0026] The specific implementation method of this embodiment is as follows: the present application improves the shape and structure of the inner wall of the existing sedimentation tank, and sets the space in the upper, middle and lower parts of the inner wall of the sedimentation tank as a cylinder, so that the acid-hydrolyzed titanium liquid and the sedimentation agent are temporarily stored in the upper, middle and lower parts of the inner wall of the sedimentation tank, and then works through a mixing mechanism, and drives the acid-hydrolyzed titanium liquid and the sedimentation agent to be mixed again through the mixing mechanism, so that the acid-hydrolyzed titanium liquid is fully mixed with the sedimentation agent during the sedimentation process, and the mixed mud settles to the lower part and the bottom of the sedimentation tank, and sets the space at the bottom of the inner wall of the sedimentation tank as a cone, so as to facilitate the gathering of the settled mud, and the titanium liquid on the upper layer of the sedimentation tank is pumped away, and the remaining mud is discharged through the slag discharge structure. The shape of the bottom of the sedimentation tank facilitates the discharge of a part of the mud and gathers again under the action of gravity, so that the purpose of quickly cleaning the mud is achieved through the slag discharge structure.

[0027] Embodiment 2

[0028] The utility model provides a device for assisting acid hydrolysis sludge precipitation, such as Figure 1As shown, the slag discharge structure includes a vertically arranged slag discharge pipe 2, and the slag discharge pipes 2 are connected with an on-off valve 3, the on-off valve 3 is located on the side close to the bottom of the sedimentation tank 1, and the bottom of the slag discharge pipe 2 is connected with a mud discharge structure.

[0029] The sludge discharge structure includes a slurry pump, which is located at one side of the bottom of the sedimentation tank 1. One end of the slurry pump is connected to a sludge suction pipe, the upper end of the sludge suction pipe is connected to the slag discharge pipe, and the other end of the slurry pump is connected to the sludge discharge pipe.

[0030] The specific implementation method of this embodiment is: when the acid-hydrolyzed titanium liquid and the sedimentation agent are mixed inside the sedimentation tank, the on-off valve is closed to allow the titanium liquid and the mud to be fully stratified, and then the upper layer of titanium liquid is pumped away by the delivery pump, and finally the on-off valve is opened to discharge the mud inside the sedimentation tank.

[0031] When the mud needs to be pumped out, the on-off valve is opened to start the slurry pump. The shape of the bottom of the sedimentation tank facilitates the continuous gathering of the mud, and the gathered mud is pumped out by the slurry pump, so as to achieve the purpose of quickly cleaning the mud inside the sedimentation tank.

[0032] Embodiment 3

[0033] The utility model provides a device for assisting acid hydrolysis sludge precipitation, such as Figure 1 As shown, the mixing mechanism includes a horizontally arranged support plate 4, the two ends of the support plate 4 are respectively connected to the two sides of the top of the sedimentation tank 1, the upper end surface of the support plate 4 is connected to a vertically arranged support frame 5, the top of the support frame 5 is connected to a drive motor 6, the inside of the drive motor 6 is connected to a drive shaft 7, the lower end of the drive shaft 7 is connected to a mixing shaft 8, the lower end of the mixing shaft 8 is located at the lower part of the inner wall of the sedimentation tank 1, and the bottom of the mixing shaft 8 is connected to a mixing blade 9.

[0034] A reducer 10 is provided between the driving shaft 7 and the mixing shaft 8. The reducer 10 is vertically arranged and connected to the support frame 5. The upper end of the reducer 10 is connected to the lower end of the driving shaft 7. The lower end of the reducer 10 is connected to a transmission shaft 11. The lower end of the transmission shaft 11 passes through the support plate 4 and is connected to the upper end of the mixing shaft 8.

[0035] A vertically arranged buffer cylinder 12 is connected to the outer wall of the mixing shaft 8. The buffer cylinder 12 is located in the upper middle part of the sedimentation tank 1. The space on the inner wall of the buffer cylinder 12 is cylindrical and has an opening at the upper end. A plurality of through holes 13 are evenly distributed on the buffer cylinder 12 for the acid-hydrolyzed titanium liquid to enter the sedimentation tank 1.

[0036] A feeding pipe 14 is connected to the support plate 4 , and a discharge end of the feeding pipe 14 is vertically arranged and located above the buffer cylinder 12 .

[0037] The specific implementation method of this embodiment is: the two ends of the support plate are used to connect with the top of the sedimentation tank, the upper end surface of the support plate is used to connect to the support frame, the top of the support frame is used to connect to the vertically downward driving motor, the driving motor is used to drive the driving shaft to rotate, the driving shaft drives the mixing shaft to rotate, the rotation of the mixing shaft facilitates the rotation of the mixing blades, and the rotation of the mixing blades facilitates the sufficient mixing of the acid-hydrolyzed titanium liquid and the sedimentation agent.

[0038] Preferably, a reducer is provided between the driving shaft and the mixing shaft, and the reducer facilitates the driving motor to drive the mixing blades to rotate slowly, so that the acid-hydrolyzed titanium liquid and the sedimentation agent are fully mixed while reducing the influence on the sedimentation of the mud.

[0039] The buffer cylinder connected to the outer wall of the mixing shaft prevents the acid-hydrolyzed titanium liquid and the sedimentation agent transported by the feed pipe from directly impacting the inner wall of the sedimentation tank. After the acid-hydrolyzed titanium liquid and the sedimentation agent enter the buffer cylinder, the buffer cylinder is driven to rotate by the mixing shaft. During the rotation, the acid-hydrolyzed titanium liquid and the sedimentation agent are mixed again, and the acid-hydrolyzed titanium liquid and the sedimentation agent gradually enter the sedimentation tank through the through hole.

[0040] Preferably, the existing vertically arranged feed pipe is avoided from directly conveying the acid-hydrolyzed titanium liquid and the sedimentation agent into the sedimentation tank, and the conveyed liquid impacts the titanium liquid and the mud at the bottom of the sedimentation tank, thereby reducing the influence on the sedimentation of the mud.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for assisting acid hydrolysis sludge precipitation, characterized in that: The invention comprises a vertically arranged sedimentation tank (1), the upper end of the sedimentation tank (1) is opened and a space for sedimentation of titanium liquid and mud is arranged inside, the space in the upper, middle and lower parts of the inner wall of the sedimentation tank (1) is cylindrical, the space at the bottom of the inner wall of the sedimentation tank (1) is conical, the bottom of the sedimentation tank (1) is connected to a vertically arranged slag discharge structure, the top of the sedimentation tank (1) is connected to a mixing mechanism arranged vertically downward, the upper end of the mixing mechanism is located above the sedimentation tank (1), the lower end of the mixing mechanism is located inside the sedimentation tank (1), the central axis of the mixing mechanism is in line with the central axis of the slag discharge structure and the axis of the sedimentation tank (1), and the two sides of the bottom of the sedimentation tank (1) are respectively fixed to the foundation.

2. The device for assisting acid hydrolysis sludge precipitation according to claim 1, characterized in that: The slag discharge structure comprises a vertically arranged slag discharge pipe (2), the slag discharge pipes (2) are connected with an on-off valve (3), the on-off valve (3) is located on a side close to the bottom of the sedimentation tank (1), and the bottom of the slag discharge pipe (2) is connected with a mud discharge structure.

3. The device for assisting acid hydrolysis sludge precipitation according to claim 2, characterized in that: The sludge discharge structure comprises a sludge pump, which is located at one side of the bottom of the sedimentation tank (1), one end of the sludge pump is connected to a sludge suction pipe, the upper end of the sludge suction pipe is connected to the sludge discharge pipe, and the other end of the sludge pump is connected to the sludge discharge pipe.

4. The device for assisting acid hydrolysis sludge precipitation according to claim 1, characterized in that: The mixing mechanism comprises a horizontally arranged support plate (4), the two ends of the support plate (4) are respectively connected to the two sides of the top of the sedimentation tank (1), the upper end surface of the support plate (4) is connected to a vertically arranged support frame (5), the top of the support frame (5) is connected to a driving motor (6), the inside of the driving motor (6) is connected to a driving shaft (7), the lower end of the driving shaft (7) is connected to a mixing shaft (8), the lower end of the mixing shaft (8) is located at the lower part of the inner wall of the sedimentation tank (1), and the bottom of the mixing shaft (8) is connected to a mixing blade (9).

5. The device for assisting acid hydrolysis sludge precipitation according to claim 4, characterized in that: A reducer (10) is provided between the driving shaft (7) and the mixing shaft (8). The reducer (10) is vertically arranged and connected to the support frame (5). The upper end of the reducer (10) is connected to the lower end of the driving shaft (7). The lower end of the reducer (10) is connected to a transmission shaft (11). The lower end of the transmission shaft (11) passes through the support plate (4) and is connected to the upper end of the mixing shaft (8).

6. The device for assisting acid hydrolysis sludge precipitation according to claim 4, characterized in that: A vertically arranged buffer cylinder (12) is connected to the outer wall of the mixing shaft (8). The buffer cylinder (12) is located in the middle and upper part of the sedimentation tank (1). The space on the inner wall of the buffer cylinder (12) is cylindrical and has an opening at the upper end. The buffer cylinder (12) is evenly distributed with a plurality of through holes (13) for acid-hydrolyzed titanium liquid to enter the sedimentation tank (1).

7. The device for assisting acid hydrolysis sludge precipitation according to claim 6, characterized in that: A feed pipe (14) is connected to the support plate (4), and a discharge end of the feed pipe (14) is vertically arranged and located above the buffer cylinder (12).

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