A liquid cooling crystallization device for preparing barium chloride using waste barium slag

Abstract

This invention discloses a liquid cooling crystallization device for preparing barium chloride using waste barium slag, relating to the field of barium chloride processing. It includes a crystallization box and a rotating cylinder. The rotating cylinder is connected to the crystallization box by bearings. A material guiding mechanism is installed inside the rotating cylinder. Strip grooves are formed at equal angles on the rotating cylinder. Raised toothed blocks are also uniformly fixed on the rotating cylinder, positioned at the rear of the crystallization box. A screening mechanism is also installed on the rotating cylinder, comprising a fixed plate, a screen, a first spring, a connecting rod, and a scraper. The fixed plate is fixed to the rotating cylinder at equal angles, with a one-to-one correspondence between the fixed plate and the strip grooves, and the width of the fixed plate is smaller than the width of the strip grooves. This liquid cooling crystallization device for preparing barium chloride using waste barium slag employs an active filtration and collection mechanism, which can directly filter and collect the crystallized barium chloride during the heating process of the barium chloride solution, thereby reducing steps and improving processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of barium chloride processing technology, specifically to a liquid cooling crystallization device for preparing barium chloride using waste barium slag. Background Technology

[0002] Barium chloride is an inorganic compound commonly used as an analytical reagent, dehydrating agent, raw material for barium salt production, and in industries such as electronics, instrumentation, and metallurgy. After preparing barium chloride solution from waste barium slag, the liquid needs to be cooled by a cooling crystallization device so that barium chloride crystals out, which facilitates subsequent collection.

[0003] Existing cooling crystallization devices mainly involve lowering the solution to the required temperature to allow crystals to precipitate. Once crystallization is complete, the liquid is released and the crystals are collected. This process is cumbersome and has low production efficiency. Furthermore, it is not possible to collect crystals directly during the crystallization process. To address these issues, a liquid cooling crystallization device for preparing barium chloride using waste barium slag is designed to better meet practical application requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid cooling crystallization device for preparing barium chloride using waste barium slag, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a liquid cooling crystallization device for preparing barium chloride using waste barium slag, comprising a crystallization box and a rotating cylinder, wherein the rotating cylinder is connected to the crystallization box by a bearing, a material guiding mechanism is provided inside the rotating cylinder, strip grooves are formed at equal angles on the rotating cylinder, and protruding tooth blocks are uniformly fixed on the rotating cylinder, with the protruding tooth blocks located on the rear side of the crystallization box. A screening mechanism is also installed on the rotating cylinder, the screening mechanism comprising a fixed plate, a screen, a first spring, a connecting rod, and a scraper, wherein the fixed plate is fixed at equal angles on the rotating cylinder, and the fixed plate and the strip grooves are distributed in a one-to-one correspondence, and the width of the fixed plate is smaller than the strip grooves. The width of the groove is specified. A screen is slidably connected to the fixed plate and slides in contact with the inner wall of the crystallization box. A first spring is fixed between the screen and the fixed plate. Connecting rods are also fixed at equal intervals on the screen, and scrapers are fixed on the connecting rods. The scrapers slide in contact with the fixed plate. The rotating cylinder drives the fixed plate and the screen to rotate, which, together with the screen, achieves the separation of crystals and liquid. In addition, the sliding action between the screen and the crystallization box causes the screen to slide inward into the fixed plate, reducing the total length of the screen and the fixed plate. With the action of the scraper, the crystals collected on the screen and the fixed plate fall onto the guiding mechanism through the groove, realizing the automatic collection of crystals.

[0006] Preferably, the crystallization box consists of two arc-shaped boxes, and the distance between the inner wall of the upper arc-shaped box and the rotating cylinder is less than the distance between the inner wall of the lower arc-shaped box and the rotating cylinder. The irregularly shaped crystallization box can provide a basic guarantee for the collection of crystals.

[0007] Preferably, an inlet valve is provided on the upper side of the front end face of the crystallization box, and an outlet valve is provided on the lower side of the front end face of the crystallization box. A cooling pipe is fixed on the lower end face of the crystallization box, and an inlet and an outlet are provided on the cooling pipe. By circulating cooling water into the cooling pipe, a basic guarantee can be provided for the cooling of the crystallization box, thereby ensuring the normal cooling and crystallization of barium chloride.

[0008] Preferably, the front end of the crystallization box is also fixed with a fixing frame, and a motor is fixed on the fixing frame. The output end of the motor is fixed to the rotating drum. Through the action of the motor, a basic force can be provided for the rotation of the rotating drum and the screening mechanism to ensure the normal operation of the device.

[0009] Preferably, the material guiding mechanism consists of a mounting frame, a material guiding plate, and an arc-shaped block. The mounting frame is fixed on the crystallization box and contacts the rotating cylinder. The material guiding plate is rotatably connected to the mounting frame. Through the action of the material guiding plate, barium chloride crystals can be guided, which facilitates the collection of barium chloride crystals.

[0010] Preferably, the rear end face of the guide plate is positioned above the collecting mechanism, and an arc-shaped block is fixed to the lower end face of the guide plate. Through the action of the arc-shaped block, a basic force can be provided for the shaking of the guide plate, ensuring the normal guiding function of the guide plate.

[0011] Preferably, the collection mechanism includes a collection box, a baffle, a filter screen, a return pipe, a vertical rod, a sliding rod, a convex shaft, a gear, a sliding rod, a mounting plate, and a second spring. The collection box is located below the guide plate, and a baffle is fixed on the collection box and located behind the guide plate. A filter screen is fixed inside the collection box, and a return pipe is fixed on the collection box and located inside the rotating cylinder. Through the action of the baffle, the barium chloride crystals falling from the guide plate can be blocked to prevent the barium chloride crystals from splashing out. With the action of the filter screen and the return pipe, the barium chloride crystals can be filtered again, making it convenient for the residual barium chloride solution to flow back into the crystallization box and avoid waste.

[0012] Preferably, a vertical rod is fixed on the collection box, and the vertical rod and the arc-shaped block are slidably connected. The sliding action between the vertical rod and the arc-shaped block can provide a basic guarantee for the vibration of the guide plate.

[0013] Preferably, a sliding rod is fixed at the lower end of the collection box, and the sliding rod is slidably connected to the convex shaft. The convex shaft is fixed on the gear, and the gear bearing is connected to the crystallization box. The gear and the convex tooth block are meshed. Through the meshing transmission between the gear and the convex tooth block, and the sliding action between the sliding rod and the convex shaft, a basic force can be provided for the movement of the collection box, which facilitates the shaking off of the residual barium chloride crystal liquid.

[0014] Preferably, the collection box is symmetrically fixed with sliding rods on the left and right, and the sliding rods are slidably connected to the mounting plate. The mounting plate is fixed to the crystallization box, and a second spring is fixed between the mounting plate and the sliding rods. When the collection box moves, the sliding guide between the sliding rods and the mounting plate can ensure the stability of the collection box movement.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This liquid cooling crystallization device for preparing barium chloride using waste barium slag adopts an active filtration and collection mechanism. It can directly filter and collect the crystallized barium chloride during the heating process of the barium chloride solution, thereby reducing the number of steps and improving processing efficiency. Specifically, the device uses a motor to drive a rotating drum, which in turn drives a fixed plate and a screen to rotate. The screen separates the crystals from the liquid. The sliding action between the screen and the crystallization box causes the screen to slide into the fixed plate, reducing the total length of the screen and the fixed plate. With the help of a scraper, the crystals collected on the screen and the fixed plate fall onto the guiding mechanism through a strip groove, achieving automatic crystal collection.

[0017] 2. This liquid cooling crystallization device for preparing barium chloride using waste barium slag employs a vibrating feeding mechanism to facilitate the discharge of barium chloride crystals. Combined with a vibrating separation mechanism, it can perform secondary separation of the residual liquid on the barium chloride crystals. The separated liquid flows back into the crystallization box for further cooling and crystallization, avoiding raw material waste. Specifically, the transmission action between the convex tooth block and the gear, and the sliding action between the convex shaft and the sliding rod, allow the collection box to swing left and right. Combined with the sliding action between the vertical rod and the arc-shaped block, and the rotation action between the guide plate and the mounting frame, the guide plate can swing up and down. This allows the barium chloride crystals and residual liquid on the guide plate to smoothly enter the collection box. A filter screen separates the crystals from the liquid. Furthermore, the reflux pipe automatically returns the separated liquid to the crystallization box for further cooling and crystallization. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional structural diagram of the device of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the overall rear cross-sectional view of the device of the present invention;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the rotating cylinder and screening mechanism of the present invention;

[0021] Figure 4 This is a three-dimensional cross-sectional view of the rotating cylinder of the present invention;

[0022] Figure 5 This is a three-dimensional cross-sectional view of the fixing plate of the present invention;

[0023] Figure 6 This is a rear-view three-dimensional structural diagram of the material guiding mechanism and the collecting mechanism of the present invention;

[0024] Figure 7 This is a bottom-view three-dimensional structural diagram of the material guiding mechanism and the collecting mechanism of the present invention.

[0025] In the diagram: 1. Crystallization box; 101. Inlet valve; 102. Outlet valve; 103. Cooling pipe; 104. Fixing frame; 2. Motor; 3. Rotating cylinder; 301. Strip groove; 302. Convex toothed block; 4. Screening mechanism; 401. Fixing plate; 402. Screen; 403. First spring; 404. Connecting rod; 405. Scraper; 5. Material guiding mechanism; 501. Mounting frame; 502. Material guiding plate; 503. Arc-shaped block; 6. Collection mechanism; 601. Collection box; 602. Baffle; 603. Filter screen; 604. Return pipe; 605. Vertical rod; 606. Sliding rod; 607. Convex shaft; 608. Gear; 609. Sliding rod; 610. Mounting plate; 611. Second spring. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-7This invention provides a technical solution: a liquid cooling crystallization device for preparing barium chloride using waste barium slag, comprising a crystallization box 1 and a rotating cylinder 3. The rotating cylinder 3 is connected to the crystallization box 1 by bearings. A material guiding mechanism 5 is installed inside the rotating cylinder 3. Strip grooves 301 are formed at equal angles on the rotating cylinder 3. Convex toothed blocks 302 are also uniformly fixed on the rotating cylinder 3, and the convex toothed blocks 302 are located on the rear side of the crystallization box 1. A screening mechanism 4 is also installed on the rotating cylinder 3. The screening mechanism 4 includes a fixed plate 401, a screen 402, a first spring 403, a connecting rod 404, and a scraper 405. The fixed plate 401 is fixed at equal angles on the rotating cylinder 3, and the fixed plate 401 and the strip grooves 301 are distributed in a one-to-one correspondence. The width of the fixed plate 401 is smaller than the width of the strip grooves 301. A sliding connection is made on the fixed plate 401. A screen 402 is provided, which slides in contact with the inner wall of the crystallization box 1. A first spring 403 is fixed between the screen 402 and the fixed plate 401. Connecting rods 404 are also fixed at equal intervals on the screen 402, and scrapers 405 are fixed on the connecting rods 404. The scrapers 405 slide in contact with the fixed plate 401. The rotating cylinder 3 drives the fixed plate 401 and the screen 402 to rotate, which helps to separate the crystals from the liquid. In addition, the sliding action between the screen 402 and the crystallization box 1 causes the screen 402 to slide into the fixed plate 401, reducing the total length of the screen 402 and the fixed plate 401. With the action of the scraper 405, the crystals collected on the screen 402 and the fixed plate 401 fall onto the guiding mechanism 5 through the strip groove 301, realizing the automatic collection of crystals.

[0028] The crystallization box 1 consists of two arc-shaped boxes, an upper one and an lower one. The distance between the inner wall of the upper arc-shaped box of the crystallization box 1 and the rotating cylinder 3 is less than the distance between the inner wall of the lower arc-shaped box of the crystallization box 1 and the rotating cylinder 3. An inlet valve 101 is provided on the upper side of the front end face of the crystallization box 1, and an outlet valve 102 is provided on the lower side of the front end face of the crystallization box 1. A cooling pipe 103 is fixed on the lower end face of the crystallization box 1, and an inlet and an outlet are provided on the cooling pipe 103. A fixing frame 104 is also fixed on the front end face of the crystallization box 1, and a motor 2 is fixed on the fixing frame 104. The output end of the motor 2 is fixed to the rotating cylinder 3.

[0029] When using this liquid cooling crystallization device for preparing barium chloride from waste barium slag, such as Figures 1-5As shown, firstly, the circulating pump is connected to the inlet of cooling pipe 103 and the cooling water tank via a conduit. Then, the outlet of cooling pipe 103 is connected to the cooling water tank via a conduit to facilitate the circulation of cooling water. Next, barium chloride solution is injected into crystallization tank 1 through inlet valve 101, with the barium chloride solution level below the lower end of rotating cylinder 3. At this time, the cooling water circulating in cooling pipe 103 can cool crystallization tank 1 and the barium chloride solution inside, causing barium chloride crystals to precipitate. Then, motor 2 drives rotating cylinder 3 to rotate slowly, thereby driving fixed plate 401 and screen 402 to rotate slowly. The rotation of fixed plate 401 and screen 402 can achieve turbulence of barium chloride solution, ensuring liquid temperature uniformity. When the liquid temperature decreases, the barium chloride crystals precipitate. When barium chloride crystals precipitate, the rotation of the screen 402 can separate the barium chloride crystals and the barium chloride liquid. When the screen 402 rotates from bottom to top, due to the irregular structure of the crystallization box 1, the screen 402 is forced to slide into the fixed plate 401, thereby driving the connecting rod 404 and the scraper 405 to move. With the sliding action between the screen 402 and the fixed plate 401, the barium chloride crystals separated on the screen 402 fall off. With the sliding action between the scraper 405 and the fixed plate 401, the barium chloride crystals on the fixed plate 401 can fall off. When the screen 402 reaches the top of the crystallization box 1, under the action of gravity, the barium chloride crystals and the residual barium chloride liquid fall automatically and fall into the guiding mechanism 5 through the strip groove 301, thereby realizing the automatic collection of barium chloride crystals.

[0030] The material guiding mechanism 5 consists of a mounting frame 501, a guide plate 502, and an arc-shaped block 503. The mounting frame 501 is fixed on the crystallization box 1 and contacts the rotating cylinder 3. The guide plate 502 is rotatably connected to the mounting frame 501. The rear end face of the guide plate 502 is positioned above the collecting mechanism 6, and the arc-shaped block 503 is fixed to the lower end face of the guide plate 502. The collecting mechanism 6 includes a collecting box 601, a baffle 602, a filter screen 603, a return pipe 604, a vertical rod 605, a sliding rod 606, a convex shaft 607, a gear 608, a sliding rod 609, a mounting plate 610, and a second spring 611. The collecting box 601 is positioned below the guide plate 502, and the baffle 602 is fixed on the collecting box 601. The baffle 602 is positioned behind the guide plate 502. A filter screen 603 is fixed, and a return pipe 604 is fixed on the collection box 601 and is located inside the rotating cylinder 3; a vertical rod 605 is fixed on the collection box 601 and is slidably connected to the arc-shaped block 503; a sliding groove rod 606 is fixed at the lower end of the collection box 601 and is slidably connected to the convex shaft 607, and the convex shaft 607 is fixed on the gear 608, while the gear 608 is bearing connected to the crystallization box 1, and the gear 608 is meshed with the convex tooth block 302; sliding rods 609 are symmetrically fixed on the left and right sides of the collection box 601 and are slidably connected to the mounting plate 610, and the mounting plate 610 is fixed on the crystallization box 1, while a second spring 611 is fixed between the mounting plate 610 and the sliding rod 609;

[0031] When barium chloride crystals and residual barium chloride liquid fall automatically, such as Figures 1-7As shown, the falling barium chloride crystals and residual barium chloride liquid fall onto the guide plate 502. When the rotating cylinder 3 rotates, it synchronously drives the convex tooth block 302 to rotate. Combined with the meshing transmission between the convex tooth block 302 and the gear 608, this causes the convex shaft 607 to rotate. Combined with the sliding action between the convex shaft 607 and the sliding rod 606, this causes the collection box 601 to move left and right in an orderly manner. Furthermore, the sliding guide action between the sliding rod 609 and the mounting plate 610 ensures the stability of the collection box 601's movement. As the collection box 601 moves, it synchronously drives the vertical rod 605 to move. When the vertical rod 605 separates from the arc-shaped block 503, under the action of gravity, combined with the rotation between the guide plate 502 and the mounting frame 501, the rear side of the guide plate 502 tilts downwards, causing the barium chloride crystals and residual liquid on the guide plate 502 to fall onto the guide plate 502. The remaining barium chloride liquid automatically slides into the collection box 601 and is collected. When the vertical rod 605 slides into contact with the arc-shaped block 503, the guide plate 502 returns to a horizontal state. In summary, the up-and-down swing of the guide plate 502 makes it easier for barium chloride crystals and residual barium chloride liquid to enter the collection box 601. The barium chloride crystals and residual barium chloride liquid in the collection box 601 can achieve solid-liquid separation again through the filter screen 603. In conjunction with the left-right reciprocating motion of the collection box 601, the barium chloride crystals on the filter screen 603 move synchronously, which can better shake off the liquid on the barium chloride crystals. The separated liquid automatically flows back to the crystallization box 1 through the return pipe 604 and the strip groove 301 on the rotating cylinder 3 for further cooling and crystallization. This is the working principle of the liquid cooling crystallization device for preparing barium chloride using waste barium slag.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid cooling crystallization device for preparing barium chloride using waste barium slag, comprising a crystallization box (1) and a rotating cylinder (3), wherein the rotating cylinder (3) is connected to the crystallization box (1) by a bearing, and a material guiding mechanism (5) is provided inside the rotating cylinder (3), characterized in that: The rotating cylinder (3) has strip grooves (301) at equal angles. The rotating cylinder (3) also has evenly fixed protruding tooth blocks (302) located on the rear side of the crystallization box (1). The rotating cylinder (3) is also equipped with a screening mechanism (4), which includes a fixed plate (401), a screen (402), a first spring (403), a connecting rod (404), and a scraper (405). The fixed plate (401) is fixed at equal angles on the rotating cylinder (3), and the fixed plate (401) and the strip grooves (301) are distributed in a one-to-one correspondence. The width of the fixed plate (401) is smaller than the width of the strip grooves (301). The screen (402) is slidably connected to the fixed plate (401), and the screen (402) slides in contact with the inner wall of the crystallization box (1). The screen (402) and the fixed plate (401) are fixed together. The first spring (403) and the screen (402) are also fixed with connecting rods (404) at equal intervals. The connecting rods (404) are fixed with scrapers (405). The scrapers (405) slide in contact with the fixed plate (401). The rotating cylinder (3) drives the fixed plate (401) and the screen (402) to rotate, and the screen (402) is used to separate the crystals from the liquid. The screen (402) slides into the fixed plate (401) in conjunction with the sliding action between the screen (402) and the crystallization box (1). The crystallization box (1) is composed of two arc-shaped boxes, and the distance between the inner wall of the upper arc-shaped box of the crystallization box (1) and the rotating cylinder (3) is less than the distance between the inner wall of the lower arc-shaped box of the crystallization box (1) and the rotating cylinder (3). The crystals collected on the screen (402) and the fixed plate (401) fall onto the guiding mechanism (5) through the strip groove (301).

2. The liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 1, characterized in that: The crystallization box (1) has an inlet valve (101) on the upper side of the front end face and an outlet valve (102) on the lower side of the front end face. A cooling pipe (103) is fixed on the lower end face of the crystallization box (1), and an inlet and an outlet are provided on the cooling pipe (103).

3. The liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 1, characterized in that: The front end of the crystallization box (1) is also fixed with a fixing frame (104), and a motor (2) is fixed on the fixing frame (104), and the output end of the motor (2) is fixed to the rotating cylinder (3).

4. The liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 1, characterized in that: The material guiding mechanism (5) consists of a mounting frame (501), a material guiding plate (502) and an arc block (503). The mounting frame (501) is fixed on the crystallization box (1) and the mounting frame (501) is in contact with the rotating cylinder (3). The material guiding plate (502) is rotatably connected to the mounting frame (501).

5. The liquid cooling crystallization apparatus for preparing barium chloride using waste barium slag according to claim 4, characterized in that: The rear end face of the guide plate (502) is positioned above the collecting mechanism (6), and an arc-shaped block (503) is fixed on the lower end face of the guide plate (502).

6. The liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 5, characterized in that: The collection mechanism (6) includes a collection box (601), a baffle (602), a filter screen (603), a return pipe (604), a vertical rod (605), a sliding rod (606), a convex shaft (607), a gear (608), a sliding rod (609), a mounting plate (610), and a second spring (611). The collection box (601) is located below the guide plate (502), and the baffle (602) is fixed on the collection box (601). The baffle (602) is located on the rear side of the guide plate (502). The filter screen (603) is fixed inside the collection box (601), and the return pipe (604) is fixed on the collection box (601). The return pipe (604) is located inside the rotating cylinder (3).

7. A liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 6, characterized in that: A vertical rod (605) is fixed on the collection box (601), and the vertical rod (605) and the arc-shaped block (503) are slidably connected.

8. A liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 7, characterized in that: The lower end of the collection box (601) is fixed with a sliding rod (606), and the sliding rod (606) is slidably connected to the cam shaft (607). The cam shaft (607) is fixed on the gear (608), and the gear (608) is connected to the crystallization box (1) by a bearing. The gear (608) is meshed with the cam tooth block (302).

9. A liquid cooling crystallization apparatus for preparing barium chloride from waste barium slag according to claim 8, characterized in that: The collection box (601) is symmetrically fixed with sliding rods (609) on the left and right, and the sliding rods (609) are slidably connected to the mounting plate (610). The mounting plate (610) is fixed on the crystallization box (1), and a second spring (611) is fixed between the mounting plate (610) and the sliding rods (609).

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