A reaction separation integrated device for extracting titanium from vanadium-containing leaching residue by wet method

Abstract

The present application relates to the technical field of titanium extraction from vanadium-containing leaching residue, and particularly relates to a reaction-separation integrated device for wet titanium extraction from vanadium-containing leaching residue, which comprises an outer protective box, a feeding mechanism arranged in the outer protective box along the left-right direction, a reaction box, a material exposure pipe and a conveying assembly, and a discharging mechanism arranged below the output end of the feeding mechanism, which comprises a conveying belt, a discharging box and a filter plate; the conveying assembly comprises an outer protective box, a chain, a meandering guide rail and a first rotating shaft, two outer protective boxes are symmetrically arranged along the front-rear direction, a meandering guide rail is fixed on the inner wall of the side close to the two outer protective boxes, the chain is arranged along the conveying direction of the meandering guide rail, toothed discs are arranged on both ends of the chain in a meshing mode, and the coaxial toothed discs on the two chains are fixedly connected by the same first rotating shaft; the integrated device can automatically realize the operation of titanium extraction from vanadium-containing leaching residue, the reaction is sufficient, and the labor intensity can be effectively reduced while the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of titanium extraction technology from vanadium-containing leaching residue, and more particularly to an integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue. Background Technology

[0002] Vanadium-containing leaching slag is a solid waste produced after sodium roasting and water leaching of vanadium-titanium magnetite. It contains a large amount of unused titanium resources. Currently, the hydrometallurgical technology for recovering titanium from this type of secondary resource mainly uses hydrochloric acid leaching at 90-160℃. The hydrochloric acid selectively dissolves impurities such as vanadium, chromium, iron, and calcium in the slag, while enriching titanium in the solid phase. After the reaction is completed, the titanium-containing slag is separated from the reaction liquid containing valuable metals such as vanadium and chromium through an independent solid-liquid separation device. The separated titanium-rich material is then subjected to subsequent treatments such as washing and alkaline desilication to finally obtain a high-grade titanium slag product.

[0003] For example, existing published documents CN104805302B - A method for extracting vanadium and titanium from vanadium-titanium slag and CN105483372B - An integrated device and method for reaction, separation, washing, evaporation and drying both disclose a titanium extraction process and device for vanadium-containing leaching slag. Although the above devices can achieve effective titanium extraction from leaching slag, they still have the following shortcomings in actual use.

[0004] 1. The existing vanadium-containing leaching residue requires separate acid washing and alkali washing operations. During the operation, staff need to assist in the transfer and conveying of intermediate materials. The overall operation is complicated and has a low degree of automation. At the same time, the existing equipment operation process will also indirectly reduce work efficiency and has poor overall practicality.

[0005] 2. Existing vanadium-containing leaching residues, whether acid-washed or alkali-washed, require machine-assisted stirring after the acid or alkali is added to the raw material. The overall operation is complicated and indirectly increases the labor intensity of the workers.

[0006] Therefore, it is necessary to improve the existing technology to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0008] In view of the problems of low automation and low efficiency in the existing titanium extraction process and equipment for vanadium-containing leaching residue, an integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue is proposed.

[0009] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue, comprising: an outer protective box; a conveying mechanism arranged in the left-right direction inside the outer protective box, including a reaction tank, an aeration pipe, and a conveying assembly; and a discharge mechanism located below the output end of the conveying mechanism, including a conveyor belt, a discharge box, and a filter plate; the conveying assembly includes an outer protective box, a chain, a spiral guide rail, and a first rotating shaft, the two outer protective boxes being symmetrically arranged in the front-back direction, and a spiral guide rail being fixed on the inner wall of the side of the two outer protective boxes that are close to each other, the chain being arranged along the conveying direction of the spiral guide rail, and toothed discs being meshed at both ends of the chain, the coaxial toothed discs on the two chains being fixedly connected by the same first rotating shaft. Multiple reaction chambers are arranged in an array along the conveying direction of the chain on the outside of the outer protective box. A base plate is fixedly installed in the middle of the bottom surface of the reaction chamber along the left-right direction, and a rotating rod is fixedly sleeved in the base plate. Both ends of the rotating rod are rotatably connected to I-shaped wheels through rolling bearings, and a blind hole is opened at the end of the rotating rod. The I-shaped wheels are fitted into the loop guide rail with clearance. A plug is inserted into the blind hole and fixed to one end of the chain fixing pin. A partition is fixedly arranged in an array inside the lower end of the outer protective box, and the partition divides the lower end of the outer protective box into a first chamber, a second chamber and a third chamber from left to right. The material conveying mechanism is set in the third chamber. An extraction pipe is set on the side above the material conveying mechanism in the first chamber, and the extraction pipe is used to extract the pickling solution in the reaction chamber.

[0010] The beneficial effects of this invention are as follows: When this integrated reaction and separation device is in use, the reaction tank is driven by the chain conveyor, and the I-shaped wheel drives the reaction tank to move back and forth along the loop guide rail. During the movement, the leaching residue is first acid-washed. After the acid washing is completed, the extraction pipe extracts the reaction liquid inside. Then, the reaction tank continues to move with the chain, and the alkali solution is injected into the solid, thus achieving alkali washing of the solid. After the alkali washing is completed, the titanium material is automatically dropped onto the conveyor belt under the guidance of the loop guide rail. After the filter plate filters the reaction liquid, the solid titanium material on the conveyor belt is finally transported out. In this way, the reaction and separation of the entire titanium extraction process of vanadium-containing leaching residue is automatically realized. The chain drives multiple reaction tanks to work, thus realizing the automated operation of titanium extraction, reducing labor intensity and effectively improving production efficiency.

[0011] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue of the present invention, both ends of the first rotating shaft are rotatably connected to the outer protective box through rolling bearings, one end of the first rotating shaft is embedded in the output end of the first motor, and the first motor is fixedly connected to the outer protective box; the outer side wall of the outer protective box is symmetrically provided with connecting seats that are fixedly connected to the inner wall of the outer protective box.

[0012] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue of the present invention, wherein: pads are symmetrically fixed on both sides of the bottom surface of the reaction tank, with the bottom surface abutting against the outer wall of the outer protective box.

[0013] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue of the present invention, the device comprises: a feed hopper at the upper end of the left side wall of the outer protective box, the bottom plate of the feed hopper being inclined; liquid outlet pipes fixed at the lower end of the rear side wall of the outer protective box in the first, second, and third chambers; a discharge port on the outer protective box at the rear end of the third chamber, and a discharge box fixed on the outer side wall of the outer protective box at the discharge port; a conveyor belt arranged in the front-rear direction in the third chamber, one end of the conveyor belt extending into the discharge box; rollers slidably sleeved on the inner sides of both ends of the conveyor belt, and a second rotating shaft fixedly sleeved in the rollers; one end of one of the second rotating shafts extending to the outer side of the outer protective box and embedded in the output end of a second motor, and the second motor being fixedly connected to the outer side wall of the outer protective box; a discharge trough on the discharge box at one end of the conveyor belt; filter plates symmetrically arranged above both sides of the conveyor belt, the filter plates being inclined, and the inclined upper end of the filter plates being fixed on the inner wall of the third chamber.

[0014] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue according to the present invention, the extraction pipe is U-shaped with an opening at the lower end, and a liquid pump is fixedly installed in the middle of the upper end of the extraction pipe. The liquid pump is fixedly connected to the output end of the cylinder. The fixed section of the cylinder is fixedly connected to the top surface of the outer protective box. T-shaped rods are symmetrically fixed on the liquid pumps on both sides of the cylinder, and the free ends of the T-shaped rods are slidably sleeved on the outer protective box.

[0015] Given that existing reaction devices require a stirring device, which increases the labor intensity of workers, the present invention provides a further optimized and improved integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue. Specifically: an L-shaped input pipe is fixedly sleeved on the front side plate of the outer protective box, and two input pipes in the second chamber are symmetrically arranged above and below the conveying mechanism. A fitting sleeve is fixed to one end of the input pipe inside the outer protective box, and an electromagnetic ring is circumferentially fitted and fixed to the bottom surface of the fitting sleeve. Aeration pipes are arranged in an array along the left-right direction at the lower end of the reaction box, and one end of each aeration pipe is fixed to the same material gathering pipe. A feed pipe is also fixed to the material gathering pipe, and the other end of the feed pipe passes through the reaction box and extends to the top of the reaction box. A connecting sleeve for magnetic adsorption of the electromagnetic ring is slidably sleeved on the free end of the feed pipe located outside the reaction box.

[0016] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue of the present invention, wherein: retaining rings are fixed on the outer walls of the feed pipes above and below the connecting sleeve, and a first sealing ring is circumferentially fitted and fixed on the side of the retaining ring near the inner wall of the connecting sleeve; a sealing ring groove is circumferentially opened on the bottom surface of the mating sleeve inside the electromagnetic ring, and a second sealing ring is interference-fitted in the sealing ring groove; a limiting ring for clearance fit in the sealing ring groove is fixed circumferentially on one end face of the connecting sleeve.

[0017] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue of the present invention, wherein: discharge holes are arrayed along the axial direction on the bottom surface of the aeration pipe, and a horn groove is formed along the circumferential direction on the aeration pipe at the discharge hole.

[0018] Another beneficial effect of the present invention is that, in actual use, both acid and alkali solutions are gradually conveyed into the feed pipe through the input pipe and conveyed through the aggregate pipe, and finally simultaneously aerated from the discharge holes on multiple aeration pipes. The aerated acid and alkali solutions are sprayed out from the bottom of the reaction tank, thus enabling the acid and alkali solutions to be fully mixed with the materials in the reaction tank, thereby eliminating the need for stirring by the stirring device. The overall practicality is good, which can effectively improve the reaction efficiency and reduce the labor intensity of the workers.

[0019] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue of the present invention, wherein: a collection box is fixedly provided on the top surface of the outer protective box in the first chamber, and a connecting pipe is fixedly provided on the top surface of the collection box, and an air pump is fixedly installed on the connecting pipe, and an input pipe located in the first chamber extends to one end of the outer protective box and is fixedly connected to one end of the connecting pipe.

[0020] As a preferred embodiment of the integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue according to the present invention, wherein: another input pipe in the first chamber is connected to the acid pipe, the input pipe at the upper end of the second chamber is connected to the alkali pipe, and the input pipe at the lower end of the second chamber is connected to the clean water pipe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure of an integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue.

[0023] Figure 2 For the present invention Figure 1 Rear view of the structure.

[0024] Figure 3 For the present invention Figure 1 A vertical sectional view of the structure in the left-right direction.

[0025] Figure 4 For the present invention Figure 1 A vertical sectional view of the structure in the front-to-back direction.

[0026] Figure 5 For the present invention Figure 1 A schematic diagram of the internal structure of the outer and inner protective cases.

[0027] Figure 6 This is a schematic diagram of the overall structure of the material conveying mechanism in this invention.

[0028] Figure 7 This is an exploded view of the conveying component in this invention.

[0029] Figure 8 This is a schematic diagram showing the reaction chamber and aeration pipe to be assembled in this invention.

[0030] Figure 9 This is a schematic diagram of the fit between the input tube and the mating sleeve in this invention. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] Example 1

[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides an integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue. When the integrated device is in use, the outer protective box 100 is used to isolate the inside and outside to a certain extent to avoid environmental pollution. The conveying mechanism 200 is used for continuous conveying and moving of the leaching residue during the reaction and separation process. The discharge mechanism 300 is used for conveying the solid titanium after the reaction.

[0037] Specifically, it includes an outer protective box 100; a conveying mechanism 200 arranged in the left-right direction inside the outer protective box 100, including a reaction tank 201, an aeration pipe 202, and a conveying assembly 203; and a discharge mechanism 300 located below the output end of the conveying mechanism 200, including a conveyor belt 301, a discharge box 302, and a filter plate 303; a feed hopper 101 is provided at the upper end of the left side wall of the outer protective box 100, the feed hopper 101 is used to add leaching residue into the reaction tank 201, and the bottom plate of the feed hopper 101 is inclined. The lower end of the outer protective box 100 is provided with a partition 107, which divides the lower end of the outer protective box 100 into a first chamber 107a, a second chamber 107b, and a third chamber 107c from left to right. The material conveying mechanism 200 is disposed in the third chamber 107c. The lower end of the rear side wall of the outer protective box 100 at the first chamber 107a, the second chamber 107b, and the third chamber 107c are all provided with liquid outlet pipes 104, which are used to discharge the liquid after the reaction in each chamber.

[0038] See details Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the conveying assembly 203 includes an outer protective box 203a, a chain 203b, a spiral guide rail 203c, and a first rotating shaft 203d. Two outer protective boxes 203a are symmetrically arranged in the front-to-back direction, and a spiral guide rail 203c is fixedly installed on the inner wall of the side of the two outer protective boxes 203a that are close to each other. The chain 203b is arranged along the conveying direction of the spiral guide rail 203c, and toothed discs 203d-1 are meshed at both ends of the chain 203b. The coaxial toothed discs 203d-1 on the two chains 203b are fixedly connected by the same first rotating shaft 203d. Multiple reaction chambers 201 are arranged in an array outside the outer protective box 203a along the conveying direction of the chain 203b. A base plate 201b is fixedly installed in the middle of the bottom surface of the reaction chamber 201 in the left-to-right direction, and a rotating rod 201c is fixedly sleeved in the base plate 201b. Both ends of the rotating rod 201c are rotatably connected to I-shaped bearings via rolling bearings. The wheel 201d has a blind hole 201c-1 at the end of the rotating rod 201c. The I-shaped wheel 201d is fitted into the guide rail 203c with clearance, so as to limit and guide the movement of the I-shaped wheel 201d. A pin 203b-1 is inserted into the blind hole 201c-1 and fixed to one end of the chain 203b fixing pin. Thus, the pin 203b-1 can rotate freely in the blind hole 201c-1 under the drive of the chain 203b. Both ends of the first rotating shaft 203d are rotatably connected to the outer protective box 203a through rolling bearings. One end of the first rotating shaft 203d is embedded in the output end of the first motor 203d-2 and the first motor 203d-2 is fixedly connected to the outer protective box 203a. The outer walls of the outer protective box 203a are symmetrically fixed with connecting seats 203a-1 that are fixedly connected to the inner wall of the outer protective box 100.

[0039] In use, the above-mentioned setup enables one of the first rotating shafts 203d to drive the gear disk 203d-1 to rotate through the operation of the first motor 203d-2, thereby enabling the chain 203b to move along the direction of the guide rail 203c. During the movement, the insert 203b-1 enables the I-shaped wheel 201d to drive the reaction box 201 to move continuously back and forth along the conveying direction of the chain 203b. The reaction box 201 moves in each chamber to complete the reaction separation in titanium extraction production.

[0040] For further details, please see Figure 4 and Figure 8As shown, the bottom surfaces of the reaction chamber 201 are symmetrically fixed with pads 201a that abut against the outer wall of the outer protective box 203a. This can support the movement of the reaction chamber 201 and enable the reaction chamber 201 to automatically turn at the end of the outer protective box 203a.

[0041] See details Figure 3 and Figure 4 As shown, an extraction pipe 106 is provided on one side above the conveying mechanism 200 in the first chamber 107a. The extraction pipe 106 is used to extract the pickling solution in the reaction tank 201. The extraction pipe 106 is U-shaped with an open lower end. A delivery pump 106a is fixedly installed in the middle of the upper end of the extraction pipe 106. The delivery pump 106a is fixedly connected to the output end of the cylinder 106b. The fixed section of the cylinder 106b is fixedly connected to the top surface of the outer protective box 100. T-shaped rods 106b-1 are symmetrically fixed on the delivery pumps 106a on both sides of the cylinder 106b. The free end of the T-shaped rod 106b-1 is slidably sleeved on the outer protective box 100, so as to realize the limiting and guiding of the movement of the cylinder 106b.

[0042] When in use, after the leaching residue in the reaction tank 201 has been acid-washed, the reaction tank 201 moves to the position of the extraction pipe 106. After standing for a period of time, the cylinder 106b extends to drive the extraction pipe 106 to move downward. One end of the extraction pipe 106 is immersed in the reaction tank 201. The reaction liquid in the reaction tank 201 is extracted and transported to the first chamber 107a by the operation of the infusion pump 106a.

[0043] See details Figure 2 , Figure 3 and Figure 5 As shown, a discharge port 105 is provided on the outer protective box 100 at the rear end of the third chamber 107c, and a discharge box 302 is fixedly provided on the outer wall of the outer protective box 100 at the discharge port 105. A conveyor belt 301 is arranged in the front-to-back direction in the third chamber 107c, and one end of the conveyor belt 301 extends into the discharge box 302. Rollers 301a are slidably sleeved on the inner sides of both ends of the conveyor belt 301, and a second rotating shaft 301a-1 is fixedly sleeved in the roller 301a. One end of the second rotating shaft 301a-1 extends to the outside of the outer protective box 100 and is embedded in the output end of the second motor 301b. The second motor 301b is fixedly connected to the outer wall of the outer protective box 100. A discharge chute 302a is provided on the discharge box 302 at one end of the conveyor belt 301. Filter plates 303 are symmetrically arranged on the upper sides of the conveyor belt 301, and the filter plates 303 are inclined. The inclined upper end of the filter plate 303 is fixed on the inner wall of the third chamber 107c.

[0044] In use, after alkaline washing, the reaction chamber 201 moves to the end of the outer protective box 203a driven by the movement of the chain 203b. This allows the reaction chamber 201 to automatically tilt and pour the material in the reaction chamber 201 into the third chamber 107c. After being filtered by the filter plate 303, the liquid poured into the third chamber 107c flows into the area below the conveyor belt 301, while the solid titanium material falls onto the conveyor belt 301. Through the operation of the second motor 301b, the solid titanium material on the conveyor belt 301 is finally discharged through the discharge chute 301a for easy collection by subsequent personnel.

[0045] In addition, in actual use, this device also includes a controller (not shown in the attached figure) for controlling various electrical components, and the controller is located in a position convenient for operators to operate.

[0046] Example 2

[0047] Reference Figure 4 , Figure 6 , Figure 8 and Figure 9 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that in order to realize the automatic injection of acid and alkali into the leaching residue when it is conveyed along the conveying direction of the chain 203b in the reaction tank 201, so as to achieve the automatic and sufficient reaction of the leaching residue and avoid the high cost caused by using a stirring device, this embodiment is proposed.

[0048] Specifically, an L-shaped input pipe 102 is fixedly sleeved on the front side plate of the outer protective box 100, and the two input pipes 102 at the second chamber 107b are symmetrically arranged above and below the material conveying mechanism 200. One end of the input pipe 102 located inside the outer protective box 100 is fixedly provided with a fitting sleeve 102a, and an electromagnetic ring 102a-1 is circumferentially fitted and fixed on the bottom surface of the fitting sleeve 102a. An aeration pipe 202 is arranged in an array along the left and right direction at the lower end of the interior of the reaction box 201, and one end of the aeration pipe 202 is fixed on the same material gathering pipe 202a. A feed pipe 202b is also fixed on the material gathering pipe 202a, and the other end of the feed pipe 202b passes through the reaction box 201 and extends to the top of the reaction box 201.

[0049] A connecting sleeve 202c for magnetic adsorption of the electromagnetic ring 102a-1 is slidably sleeved on the free end of the feed pipe 202b located outside the reaction chamber 201. Retaining rings 202b-1 are fixedly installed on the outer walls of the feed pipe 202b above and below it. A first sealing ring 202b-2 is circumferentially fitted and fixed on one side of the retaining ring 202b-1 near the inner wall of the connecting sleeve 202c. This achieves a tight seal between the connecting sleeve 202c and the retaining ring 202b-1. Additionally, the retaining ring 202a-1... 2b-1 can also limit the connection sleeve 202c; a sealing ring groove 102b is provided circumferentially on the bottom surface of the mating sleeve 102a inside the electromagnetic ring 102a-1, and a second sealing ring 202c-2 is interference-fitted in the sealing ring groove 102b, so as to achieve the sealing performance between the mating sleeve 102a and the connection sleeve 202c; a limiting ring 202c-1 for clearance fit in the sealing ring groove 102b is fixed circumferentially on one end face of the connection sleeve 202c;

[0050] In operation, when the reaction chamber 201 is moved directly below one of the input pipes 102, the electromagnetic ring 102a-1 is energized to achieve magnetic adsorption of the connecting sleeve 202c. The connecting sleeve 202c and the mating sleeve 102a are sealed to allow for subsequent liquid injection. Specifically, another input pipe 102 at the first chamber 107a is connected to the acid pipe, thereby injecting acid into the aeration pipe 202 to react with the leaching residue. The input pipe 102 at the upper end of the second chamber 107b is connected to the alkali pipe, thereby injecting alkali into the aeration pipe 202 to react with the silicon material. At the same time, the input pipe 102 at the lower end of the second chamber 107b is connected to the clean water pipe, so that after the solid titanium material is discharged after alkali treatment, the entire reaction chamber 201 is in an inverted state, and the inside of the reaction chamber 201 is cleaned with clean water. The cleaned liquid falls into the second chamber 107b.

[0051] For further details, please see Figure 8 As shown, discharge holes 202d are arrayed along the axial direction on the bottom surface of the aeration pipe 202. The discharge holes 202d facilitate the discharge of the input liquid. Furthermore, a horn groove 202d-1 is circumferentially provided on the aeration pipe 202 at the discharge hole 202d. The horn groove 202d-1 can increase the liquid spraying range, which facilitates the full reaction between the liquid and the material, and also facilitates the cleaning of the reaction tank with clean water.

[0052] Example 3

[0053] Reference Figure 1 , Figure 4 and Figure 5This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that in order to avoid the high temperature generated during pickling causing the injected acid to be discharged in the form of gas, which would waste the acid and pollute the environment, this embodiment is proposed.

[0054] Specifically, a collection box 103 is fixedly provided on the top surface of the outer protective box 100 at the first chamber 107a, and a connecting pipe 103a is fixedly provided on the top surface of the collection box 103. An air pump 103a-1 is fixedly installed on the connecting pipe 103a. An input pipe 102 located at the first chamber 107a extends to the outside of the outer protective box 100 and is fixedly connected to one end of the connecting pipe 103a.

[0055] When the above-mentioned setup is in use, the air pump 103a-1 starts working synchronously when the leaching residue is being acid-washed, so as to extract the acid gas. The extracted acid gas is transported through the connecting pipe 103a and returned to the aeration pipe 202 through the input pipe 102. In this way, after the acid injection is completed, the acid gas will be mixed with the leaching residue again to improve the acid utilization efficiency and avoid environmental pollution.

[0056] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0057] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, the use of materials, colors, orientations, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the positions of elements may be inverted or otherwise altered, and the nature, number, or position of discrete elements may be changed or modified. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0058] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0059] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue, comprising: Outer protective box (100); The material conveying mechanism (200), located within the outer protective casing (100) and arranged in a left-right direction, includes a reaction chamber (201), an aeration pipe (202), and a conveying assembly (203); and, The discharge mechanism (300) located below the output end of the conveying mechanism (200) includes a conveyor belt (301), a discharge box (302), and a filter plate (303). The conveying assembly (203) is characterized in that: the conveying assembly (203) includes an outer protective box (203a), a chain (203b), a spiral guide rail (203c), and a first rotating shaft (203d). Two outer protective boxes (203a) are symmetrically arranged in the front-rear direction, and a spiral guide rail (203c) is fixedly provided on the inner wall of the side of the two outer protective boxes (203a) that are close to each other. The chain (203b) is arranged along the conveying direction of the spiral guide rail (203c), and toothed discs (203d-1) are meshed at both ends of the chain (203b). The coaxial toothed discs (203d-1) on the two chains (203b) are fixedly connected by the same first rotating shaft (203d). Multiple reaction chambers (201) are conveyed along... The conveying direction array of the chain (203b) is arranged outside the outer protective box (203a). The bottom center of the reaction box (201) is fixed with a base plate (201b) along the left and right direction, and a rotating rod (201c) is fixedly sleeved in the base plate (201b). Both ends of the rotating rod (201c) are rotatably connected to I-shaped wheels (201d) through rolling bearings. A blind hole (201c-1) is opened at the end of the rotating rod (201c). The I-shaped wheel (201d) is fitted with a loop guide rail (203c) with clearance. A plug (203b-1) is inserted into the blind hole (201c-1), and the plug (203b-1) is fixed at one end of the chain (203b) fixing pin. The lower end of the outer protective box (100) is fixedly provided with a partition (107), and the partition (107) divides the lower end of the outer protective box (100) into a first chamber (107a), a second chamber (107b) and a third chamber (107c) from left to right. The material conveying mechanism (200) is located in the third chamber (107c). The first chamber (107a) is provided with an extraction pipe (106) on the side above the material conveying mechanism (200), and the extraction pipe (106) is used to extract the pickling solution from the reaction tank (201).

2. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 1, characterized in that: Both ends of the first rotating shaft (203d) are rotatably connected to the outer protective box (203a) through rolling bearings. One end of one of the first rotating shafts (203d) is fitted into the output end of the first motor (203d-2), and the first motor (203d-2) is fixedly connected to the outer protective box (203a). The outer outer wall of the outer protective box (203a) is symmetrically provided with connecting seats (203a-1) that are fixedly connected to the inner wall of the outer protective box (100).

3. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 2, characterized in that: The bottom of the reaction chamber (201) is symmetrically fixed with pads (201a) on both sides, the bottom surface of which abuts against the outer wall of the outer protective box (203a).

4. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 2 or 3, characterized in that: A feed hopper (101) is provided at the upper end of the left side wall of the outer protective box (100), and the bottom plate of the feed hopper (101) is inclined. A liquid outlet pipe (104) is fixed at the lower end of the rear side wall of the outer protective box (100) in the first chamber (107a), the second chamber (107b) and the third chamber (107c). A discharge port (105) is provided on the outer protective box (100) at the rear end of the third chamber (107c), and a discharge box (302) is fixed on the outer wall of the outer protective box (100) at the discharge port (105). A conveyor belt (301) is arranged in the third chamber (107c) along the front-back direction, and one end of the conveyor belt (301) extends into the discharge box (302). Rollers are slidably sleeved on the inner sides of both ends of the conveyor belt (301). (301a), and a second rotating shaft (301a-1) is fixedly sleeved in the roller (301a), one end of the second rotating shaft (301a-1) extends to the outside of the outer protective box (100) and is embedded in the output end of the second motor (301b), and the second motor (301b) is fixedly connected to the outer wall of the outer protective box (100), and a discharge chute (302a) is opened on the discharge box (302) at one end of the conveyor belt (301); The conveyor belt (301) is symmetrically arranged with filter plates (303) on both sides above it, and the filter plates (303) are inclined. The inclined upper end of the filter plate (303) is fixed on the inner wall of the third chamber (107c).

5. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 4, characterized in that: The extraction tube (106) is U-shaped with an opening at the lower end, and an infusion pump (106a) is fixedly installed in the middle of the upper end of the extraction tube (106). The infusion pump (106a) is fixedly connected to the output end of the cylinder (106b). The fixed section of the cylinder (106b) is fixedly connected to the top surface of the outer protective box (100). T-shaped rods (106b-1) are symmetrically fixed on the infusion pumps (106a) on both sides of the cylinder (106b), and the free end of the T-shaped rod (106b-1) is slidably sleeved on the outer protective box (100).

6. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 5, characterized in that: An L-shaped input pipe (102) is fixedly sleeved on the front side plate of the outer protective box (100), and the two input pipes (102) at the second chamber (107b) are symmetrically arranged above and below the material conveying mechanism (200). One end of the input pipe (102) located inside the outer protective box (100) is fixedly provided with a matching sleeve (102a), and an electromagnetic ring (102a-1) is circumferentially fitted and fixed on the bottom surface of the matching sleeve (102a). The reaction chamber (201) has an aeration pipe (202) arranged in an array along the left and right direction at the lower end of the interior. One end of the aeration pipe (202) is fixed on the same material gathering pipe (202a). The material gathering pipe (202a) is also fixed with a feed pipe (202b). The other end of the feed pipe (202b) passes through the reaction chamber (201) and extends to the top of the reaction chamber (201). A connecting sleeve (202c) for magnetic adsorption of the electromagnetic ring (102a-1) is slidably sleeved on the free end of the feed pipe (202b) located outside the reaction chamber (201).

7. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 6, characterized in that: A retaining ring (202b-1) is fixedly provided on the outer wall of the feed pipe (202b) above and below the connecting sleeve (202c), and a first sealing ring (202b-2) is circumferentially fitted and fixed on one side of the retaining ring (202b-1) near the inner wall of the connecting sleeve (202c). A sealing ring groove (102b) is provided circumferentially on the bottom surface of the mating sleeve (102a) inside the electromagnetic ring (102a-1), and a second sealing ring (202c-2) is interference-fitted in the sealing ring groove (102b). A limiting ring (202c-1) for clearance fit in the sealing ring groove (102b) is fixed circumferentially on one end face of the connecting sleeve (202c).

8. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 6, characterized in that: The bottom surface of the aeration pipe (202) is provided with discharge holes (202d) arranged in an array along the axial direction, and the aeration pipe (202) at the discharge hole (202d) is provided with a horn groove (202d-1) along the circumferential direction.

9. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 8, characterized in that: A collection box (103) is fixedly provided on the top surface of the outer protective box (100) at the first chamber (107a), and a connecting pipe (103a) is fixedly provided on the top surface of the collection box (103). An air pump (103a-1) is fixedly installed on the connecting pipe (103a). An input pipe (102) located at the first chamber (107a) extends to one end outside the outer protective box (100) and is fixedly connected to one end of the connecting pipe (103a).

10. The integrated reaction and separation device for wet titanium extraction from vanadium-containing leaching residue as described in claim 9, characterized in that: Another input pipe (102) at the first chamber (107a) is connected to the acid pipe, the input pipe (102) at the upper end of the second chamber (107b) is connected to the alkali pipe, and the input pipe (102) at the lower end of the second chamber (107b) is connected to the clean water pipe.

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