Composite reaction tank for treating strontium carbonate production waste residues

Abstract

The utility model relates to the technical field of chemical production equipment, in particular to a composite reaction tank for treating strontium carbonate production waste residues, which comprises a vertical flow reaction tank, a horizontal flow sedimentation tank, a silt pumping mechanism and a water distribution mechanism. And the vertical flow reaction tank accelerates flocculation and sedimentation of particulate matters by utilizing the gravity effect, so that efficient solid and liquid separation is realized. A center cylinder is arranged in the center of the reaction cylinder part, the upper end and the lower end of the center cylinder are open, and a feeding area is arranged in the center cylinder; the upper end and the lower end of the center cylinder are open, a direct channel is provided for the feeding area, a reflecting plate is further arranged on the lower portion of the center cylinder and located between the reaction area and the first sedimentation area, the water flow state is improved, and the flocculation effect is promoted. The design of the central cylinder and the reflecting plate optimizes the dynamic conditions of the water flow, and improves the reaction efficiency and the reaction quality.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, in particular to a composite reaction pool for treating strontium carbonate production waste residue. Background Art

[0002] Strontium and strontium salts are widely used in electronics, chemicals, metallurgy, military industry, functional materials, and pyrotechnics. Celestite is the primary strontium ore raw material for the production of various strontium salt compounds. The production of strontium salts generates a large amount of waste residue, with approximately 1.5 tons of waste residue generated for every ton of strontium carbonate produced. The main components of this waste residue are SiO2 and CaO. Existing waste residue is typically used in road construction or building materials production, resulting in a low utilization rate of the CaO in the waste residue.

[0003] Existing CaO is usually extracted through sedimentation tanks. According to the direction of water flow in the tank, the sedimentation tank can be divided into horizontal flow sedimentation tanks, vertical flow sedimentation tanks, radial flow sedimentation tanks and inclined tube sedimentation tanks. The inlet and outlet water distribution of the horizontal flow sedimentation tank is not easy to be uniform, and the sedimentation effect is not good. The vertical flow sedimentation tank has poor adaptability to water volume impact and water temperature changes. At the same time, the tank diameter of the vertical flow sedimentation tank is usually designed to be small, so it is not effective for industrial-grade sedimentation treatment. Radial flow sedimentation tanks and inclined tube sedimentation tanks have high requirements for fluid velocity and technical investment, so the design and installation costs are high. Therefore, it is necessary to develop a device that can separate CaO from strontium slag, is energy-saving and efficient, and has good precipitation effect, so as to improve the utilization rate of waste slag. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a composite reaction tank for treating strontium carbonate production waste residue, which aims to provide a reaction tank that can effectively separate CaO from strontium slag, is energy-efficient and efficient, and has a good precipitation effect.

[0005] According to an embodiment of the present invention, a composite reaction tank for treating strontium carbonate production waste residue comprises: a vertical flow reaction tank; the vertical flow reaction tank comprises an outer cylinder, the upper end of the outer cylinder is open, and the outer cylinder is provided with a reaction cylinder portion and a sedimentation cylinder portion in a vertical direction; the reaction cylinder portion is provided with a reaction zone, and the sedimentation cylinder portion is provided with a first sedimentation zone; a central cylinder is provided in the center of the reaction cylinder portion, the upper and lower ends of the central cylinder are respectively opened, and a feeding zone is provided in the central cylinder; a reflector is provided below the central cylinder, and the reflector is located between the reaction zone and the first sedimentation zone; a collecting trough is provided circumferentially at the upper end of the outer cylinder, and an overflow weir is provided at the upper end of the outer cylinder;

[0006] A horizontal flow sedimentation tank, wherein the horizontal flow sedimentation tank is provided with a second sedimentation area and a water outlet area; the second sedimentation area is connected to the collection tank; and a sedimentation tank is provided at the bottom of the second sedimentation area;

[0007] A silt extraction mechanism, wherein the silt extraction mechanism is provided with a silt extraction pipe; the silt extraction pipe is connected to the first sedimentation area and the sedimentation tank respectively;

[0008] A water distribution mechanism is provided with a water distribution pipe; one end of the water distribution pipe passes through the outer cylinder and the central cylinder in sequence and is located in the feeding area.

[0009] According to some embodiments of the present invention, a conical surface is provided at one end of the reflective plate close to the central tube, and the rotation center of the conical surface is collinear with the central axis of the central tube.

[0010] According to some embodiments of the present invention, a screen is provided at the upper end of the central tube, and the opening of the water distribution pipe faces upward.

[0011] According to some embodiments of the present invention, the sedimentation cylinder is a funnel-shaped structure, and the silt extraction pipe extends along the generatrix direction of the sedimentation cylinder to the bottom of the sedimentation cylinder.

[0012] According to some embodiments of the present invention, the vertical flow reaction tank further includes an overflow plate and an adjusting device, the overflow plate is arranged on a side of the collecting tank close to the horizontal flow sedimentation tank, and the adjusting device is used to control the overflow plate to slide in the vertical direction.

[0013] According to some embodiments of the present invention, the adjusting device includes an adjusting base and a screw; the adjusting base is fixedly connected to the outer cylinder, the screw is threadedly connected to the adjusting base, and the lower end of the screw is rotatably connected to the overflow plate.

[0014] According to some embodiments of the present invention, a hand wheel is provided at the upper end of the screw.

[0015] According to some embodiments of the present invention, a sawtooth structure is provided at the upper end of the overflow plate.

[0016] According to some embodiments of the present invention, the silt extraction mechanism includes a centrifugal pump, the input end of the centrifugal pump is connected to the silt extraction pipe, and the input end of the centrifugal pump is connected to the input end of the compressor.

[0017] According to some embodiments of the present invention, a crossbeam is provided at the upper end of the vertical flow reaction tank, and the central tube is hoisted on the crossbeam.

[0018] A composite reaction tank for treating strontium carbonate production waste residue according to an embodiment of the present invention has at least the following beneficial effects:

[0019] According to the solution of the present utility model, the composite reaction tank for treating strontium carbonate production waste residue includes a vertical flow reaction tank, a horizontal flow sedimentation tank, a silt extraction mechanism and a water distribution mechanism, wherein the vertical flow reaction tank and the horizontal flow sedimentation tank are designed in series, and the vertical flow reaction tank uses gravity to accelerate the flocculation and sedimentation of particulate matter, thereby achieving efficient separation of solids and liquids. A central tube is provided in the center of the reaction cylinder, and the upper and lower ends of the central tube are respectively opened, and a feeding area is provided in the central tube; the upper and lower ends of the central tube are both opened, providing a direct channel for the feeding area, and a reflector is also provided at the lower part of the central tube, located between the reaction zone and the first sedimentation zone, which helps to improve the water flow state and promote the flocculation effect. The design of the central tube and the reflector optimizes the water flow dynamics conditions, improves the reaction efficiency and the quality of the reaction. A collecting trough is provided circumferentially on the upper end of the outer cylinder, and an overflow weir is provided on the upper end of the outer cylinder. The liquid that has been reacted and treated can all overflow the weir into the collecting trough and further enter the horizontal flow sedimentation tank; the horizontal flow sedimentation tank connected to the rear side of the vertical flow reaction tank provides a more stable flow space, so that the fine particles that have not been completely settled can be further settled, thereby improving the overall solid removal rate. The design of this structure ensures a continuous and efficient treatment process.

[0020] According to the solution of the present invention, the vertical flow reaction tank and the horizontal flow sedimentation tank each perform their respective functions. The vertical flow reaction tank focuses on rapid sedimentation and primary treatment, and the horizontal flow sedimentation tank focuses on deep purification. The two are used in series to form a multi-level filtration system to ensure that the effluent water quality is more stable and reliable and meets the subsequent treatment standards.

[0021] According to the solution of this utility model, compared with a single large-volume horizontal flow sedimentation tank, the vertical flow reaction tank occupies less space and is suitable for situations where space is limited. The design of the two in series not only saves land area, but also reduces construction and operation costs.

[0022] According to the solution of the present invention, a vertical flow reaction tank and a horizontal flow sedimentation tank are designed in series, which makes it easy to adjust parameters such as residence time and water flow rate according to the characteristics and treatment requirements of different waste residues and wastewater, so that the entire system can maintain high-efficiency treatment performance.

[0023] The present invention employs a series design of a vertical flow reaction tank and a horizontal flow sedimentation tank. The silt extraction mechanism is equipped with a silt extraction pipe, which connects the first sedimentation zone and the sedimentation tank. The water distribution mechanism is equipped with a water distribution pipe, one end of which passes through the outer cylinder and the central cylinder, respectively, and is located in the feeding area. The functions of each component are relatively independent, simplifying daily maintenance and overhaul. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural diagram of the utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the utility model;

[0026] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged local structure at A;

[0027] Figure 4 This is a schematic diagram of a top view structure of the utility model;

[0028] Figure 5 This is a schematic diagram of a local structure of the overflow plate of the present invention.

[0029] In the picture:

[0030] 100 - vertical flow reaction tank, 101 - reaction zone, 102 - first sedimentation zone, 103 - feeding zone, 110 - outer cylinder, 111 - reaction cylinder, 112 - sedimentation cylinder, 120 - central cylinder, 130 - reflector, 140 - collection tank, 150 - overflow weir, 160 - screen, 170 - overflow plate, 180 - adjustment device, 181 - adjustment base, 182 - screw, 183 - handwheel, 190 - crossbeam;

[0031] 200-advection sedimentation tank, 201-second sedimentation area, 202-outlet area, 210-sedimentation tank;

[0032] 300- silt extraction mechanism, 310- silt extraction pipe, 320- centrifugal pump;

[0033] 400-water distribution mechanism, 410-water distribution pipe. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference Figures 1 to 5 As shown, the utility model discloses a composite reaction tank for treating strontium carbonate production waste residue, comprising a vertical flow reaction tank 100, a horizontal flow sedimentation tank 200, a silt extraction mechanism 300 and a water distribution mechanism 400; wherein, the vertical flow reaction tank 100 comprises an outer cylinder 110, the upper end of the outer cylinder 110 is open, and the outer cylinder 110 is provided with a reaction cylinder portion 111 and a sedimentation cylinder portion 112 in the vertical direction; the reaction cylinder portion 111 is provided with a reaction zone 101, and the sedimentation cylinder portion 112 is provided with a first sedimentation zone 102; a central cylinder 120 is provided in the center of the reaction cylinder portion 111, the upper and lower ends of the central cylinder 120 are respectively opened, and a feeding area 103 is provided in the central cylinder 120; a reflector 13 is provided below the central cylinder 120 0, the reflecting plate 130 is located between the reaction zone 101 and the first sedimentation zone 102; a collecting trough 140 is circumferentially provided on the upper end of the outer cylinder 110, and an overflow weir 150 is provided on the upper end of the outer cylinder 110; the horizontal flow sedimentation tank 200 is provided with a second sedimentation zone 201 and a water outlet zone 202 in the horizontal direction; the second sedimentation zone 201 is connected to the collecting trough 140; a sedimentation trough 210 is provided at the bottom of the second sedimentation zone 201; the silt extraction mechanism 300 is provided with a silt extraction pipe 310; the silt extraction pipe 310 is respectively connected to the first sedimentation zone 102 and the sedimentation tank 210; the water distribution mechanism 400 is provided with a water distribution pipe 410; one end of the water distribution pipe 410 passes through the outer cylinder 110 and the central cylinder 120 in sequence, and is located in the feeding area 103.

[0039] Specifically, in this embodiment, the feed is carried out through the central tube 120, and the waste residue containing calcium oxide is fed into the feeding zone 103 through the central tube 120. The waste residue further enters the reaction zone 101 through the feeding zone 103. During this process, the calcium oxide and water react to form a calcium hydroxide solution; other components in the waste residue are precipitated through the first precipitation zone 102, and the alkaline solution containing calcium hydroxide enters the collection tank 140 through the overflow weir 150, and then further overflows into the second precipitation zone 201 of the horizontal flow sedimentation tank 200 for further precipitation. Finally, the alkaline solution is collected through the water outlet zone 202. In this embodiment, a vertical flow reaction tank 100 and a horizontal flow sedimentation tank 200 are designed in series. The vertical flow reaction tank 100 uses gravity to accelerate the flocculation and sedimentation of particulate matter, thereby achieving efficient solid and liquid separation. A central tube 120 is located in the center of the reaction cylinder 111. Openings are provided at both the top and bottom ends of the central tube 120, housing the feeding area 103. These openings provide direct access to the feeding area 103. A reflector 130 is located below the central tube 120, between the reaction area 101 and the first sedimentation area 102. This helps improve water flow and promotes flocculation. The design of the central tube 120 and reflector 130 optimizes hydrodynamic conditions, enhancing reaction efficiency and quality. A collection trough 140 is provided circumferentially at the upper end of the outer cylinder 110, and an overflow weir 150 is provided at the upper end of the outer cylinder 110. The liquid after reaction and treatment can enter the collection trough 140 through the overflow weir 150, and further enter the horizontal flow sedimentation tank 200; the horizontal flow sedimentation tank 200 connected to the rear side of the vertical flow reaction tank 100 provides a more stable flow space, so that the fine particles that have not been completely settled can be further settled, thereby improving the overall solid removal rate. The design of this structure ensures a continuous and efficient treatment process. The vertical flow reaction tank 100 and the horizontal flow sedimentation tank 200 each have their own functions. The vertical flow reaction tank 100 focuses on rapid sedimentation and primary treatment, and the horizontal flow sedimentation tank 200 focuses on deep purification. The two can be used in series to form a multi-level filtration system to ensure that the effluent water quality is more stable and reliable and meets the subsequent treatment standards; compared with a single large-volume horizontal flow sedimentation tank 200, the vertical flow reaction tank 100 occupies less space and is suitable for situations where the site is limited. The series design of the two not only saves land area but also reduces construction and operating costs. In addition, the series design of the vertical flow reaction tank 100 and the horizontal flow sedimentation tank 200 makes it easy to adjust parameters such as residence time and water flow rate according to the characteristics and treatment requirements of different waste residues and wastewater, so that the entire system can maintain efficient treatment performance.In this embodiment, the silt extraction mechanism 300 is equipped with a silt extraction pipe 310, which connects the first sedimentation zone 102 and the sedimentation tank 210. The water distribution mechanism 400 is equipped with a water distribution pipe 410, one end of which passes through the outer cylinder 110 and the central cylinder 120 in sequence and is located in the feeding area 103. The functions of each mechanism component are relatively independent, simplifying daily maintenance and repair work.

[0040] In some embodiments of the present invention, a conical surface is provided at one end of the reflector 130 near the central tube 120, and the center of rotation of the conical surface is collinear with the central axis of the central tube 120. In this embodiment, the design of the conical surface effectively guides the direction of the water flow, causing it to flow more concentratedly toward the peripheral side of the central tube 120, thereby enhancing the horizontal movement trend of the water flow. In this way, not only can the turbulence of the water body be increased, which is conducive to the collision and aggregation between tiny particles and the acceleration of the flocculation process, but it can also reduce the edge effect, ensure the flow state balance in the entire reaction zone 101, and improve the sedimentation efficiency. At the same time, the special geometric shape formed by the conical surface can generate vortices when the water flows through. The action of the vortex promotes the circulation of substances in the water body, increases the contact opportunities between particles in the water, accelerates the formation and growth of flocs, and thus accelerates the sedimentation rate. In this embodiment, the center of rotation of the conical surface is collinear with the central axis of the central tube 120, achieving a uniform distribution of waste particles and water output from the feeding area 103.

[0041] In some embodiments of the present invention, a screen 160 is provided at the upper end of the central tube 120, and the opening of the water distribution pipe 410 faces upward. In this embodiment, since the waste residue may contain block-shaped solids, directly adding the waste residue to the central tube 120 may cause some of the waste residue to not react fully. By providing the screen 160 at the upper end of the central tube 120, the block-shaped waste residue can be retained on the screen 160 when the waste residue is added. Furthermore, the screen 160 is backwashed through the water distribution pipe 410 with the opening facing upward to achieve the separation of the block-shaped waste residue. The waste residue that cannot be separated is removed as the screen 160 is cleaned. Through the design of this structure, the hidden danger of clogging of the silt extraction mechanism 300 is reduced, and the waste residue processing efficiency is improved.

[0042] In some embodiments of the present invention, the sedimentation cylinder 112 is a funnel-shaped structure, and the silt extraction pipe 310 extends to the bottom of the sedimentation cylinder 112 along the busbar direction of the sedimentation cylinder 112. The geometric shape of the funnel-shaped structure that naturally contracts downward effectively guides and accelerates the process of solid particles moving to the bottom, shortens the sedimentation distance, and speeds up the sedimentation speed. This not only improves the sedimentation efficiency, but also reduces the required overall reaction volume and saves space. The sediment gathers at the bottom of the funnel to form a more concentrated silt layer. The advantage of this design is that it reduces the dispersion of silt in the container, facilitates subsequent silt extraction operations, and also reduces the possibility of silt re-mixing into the water body, thereby improving the effluent water quality. The silt extraction pipe 310 extends to the bottom along the busbar direction of the sedimentation cylinder 112, ensuring that the silt extraction point is located in the most densely silted area, and can be directly extracted without complicated positioning. This method not only simplifies the silt extraction process and reduces labor requirements, but also reduces the risk of failure due to equipment complexity.

[0043] In some embodiments of the present invention, the vertical flow reaction tank 100 further includes an overflow plate 170 and a regulating device 180. The overflow plate 170 is arranged on a side of the collection tank 140 close to the horizontal flow sedimentation tank 200, and the regulating device 180 is used to control the overflow plate 170 to slide in the vertical direction. In this embodiment, the overflow plate 170 is activated when the collection tank 140 is close to full load, and the excess water is released to the horizontal flow sedimentation tank 200 by opening the overflow, thereby avoiding the problem of water overflow or excessive pressure caused by overloading of the collection tank 140 and maintaining the safe operation of the system. The regulating device 180 allows the operator to adjust the position of the overflow plate 170 as needed, that is, to control the degree of opening and closing thereof in the vertical direction. In this way, the amount of water flowing into the horizontal flow sedimentation tank 200 can be adjusted in real time according to actual conditions, ensuring that the load of the downstream treatment unit is moderate, avoiding the impact of a sudden increase in the amount of water, and maintaining the stability of the treatment efficiency.

[0044] In some embodiments of the present invention, the adjustment device 180 includes an adjustment base 181 and a screw 182. The adjustment base 181 is fixedly connected to the outer cylinder 110, the screw 182 is threadedly connected to the adjustment base 181, and the lower end of the screw 182 is rotatably connected to the overflow plate 170. Rotating the screw 182 controls the vertical movement of the overflow plate 170. This structural design improves the control accuracy of the overflow plate 170. In this embodiment, the screw 182 can be driven by a motor or a handwheel 183.

[0045] Furthermore, a hand wheel 183 is provided at the upper end of the screw rod 182. The design of using the hand wheel 183 to drive the screw rod 182 reduces the processing cost and control cost of the system.

[0046] In some embodiments of the present invention, a serrated structure is provided at the upper end of the overflow plate 170. The structure of the serrated boundary can break the surface tension of the water and prevent foam and other light floating objects from overflowing with the water flow. These substances tend to easily clog the overflow port, resulting in poor drainage. The presence of the serrated structure, especially its sharp edges and corners, can effectively cut or destroy the surface film, prevent foam accumulation, and reduce the risk of blockage. In addition, the serrated boundary helps to disperse the overflow water flow into multiple thin streams rather than a single thick flow, which not only reduces the impact force at a single point, but also forms a wider diffusion range in the horizontal flow sedimentation tank 200, which helps to evenly distribute the water flow, avoid local overload, and maintain stable operation of the system.

[0047] In some embodiments of the present invention, the silt extraction mechanism 300 includes a centrifugal pump 320, the input of which is connected to the silt extraction pipe 310, which is in turn connected to the input of the compressor. In this embodiment, the centrifugal pump 320, as a sophisticated liquid transport device, has a high flow rate and head, making it particularly suitable for transporting solid-liquid mixtures. The silt extraction pipe 310 extends deep into the bottom of the sedimentation cylinder 112. The powerful suction force of the centrifugal pump 320 allows for rapid and efficient extraction of silt from the sedimentation area, ensuring efficient cleanup.

[0048] In some embodiments of the present invention, a crossbeam 190 is provided at the upper end of the vertical flow reaction tank 100, and the central cylinder 120 is hoisted on the crossbeam 190. In this embodiment, the crossbeam 190 can serve as an artificial channel to input waste residue into the central cylinder 120, and the crossbeam 190 can serve as a fixed base for the central cylinder 120.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A composite reaction tank for treating strontium carbonate production waste residue, characterized in that: include: A vertical flow reaction tank (100); the vertical flow reaction tank (100) comprises an outer cylinder (110), the upper end of the outer cylinder (110) is open, and the outer cylinder (110) is provided with a reaction cylinder (111) and a sedimentation cylinder (112) in a vertical direction; the reaction cylinder (111) is provided with a reaction zone (101), and the sedimentation cylinder (112) is provided with a first sedimentation zone (102); a central cylinder (120) is provided in the center of the reaction cylinder (111) ), the upper and lower ends of the central cylinder (120) are respectively opened, and a feeding area (103) is provided in the central cylinder (120); a reflecting plate (130) is provided below the central cylinder (120), and the reflecting plate (130) is located between the reaction area (101) and the first precipitation area (102); a collecting trough (140) is provided in the circumferential direction of the upper end of the outer cylinder (110), and an overflow weir (150) is provided at the upper end of the outer cylinder (110); A horizontal flow sedimentation tank (200), wherein the horizontal flow sedimentation tank (200) is provided with a second sedimentation area (201) and a water outlet area (202); the second sedimentation area (201) is connected to the collection tank (140); and a sedimentation tank (210) is provided at the bottom of the second sedimentation area (201); A silt extraction mechanism (300), wherein the silt extraction mechanism (300) is provided with a silt extraction pipe (310); the silt extraction pipe (310) is connected to the first sedimentation area (102) and the sedimentation tank (210) respectively; A water distribution mechanism (400) is provided with a water distribution pipe (410); one end of the water distribution pipe (410) passes through the outer cylinder (110) and the central cylinder (120) in sequence and is located in the feeding area (103).

2. The composite reaction tank for treating strontium carbonate production waste residue according to claim 1, wherein: A conical surface is provided at one end of the reflective plate (130) close to the central tube (120), and the rotation center of the conical surface is collinear with the central axis of the central tube (120).

3. The composite reaction tank for treating strontium carbonate production waste residue according to claim 2, wherein: A screen (160) is provided at the upper end of the central tube (120), and the opening of the water distribution pipe (410) faces upward.

4. The composite reaction tank for treating strontium carbonate production waste residue according to claim 1, wherein: The sedimentation cylinder (112) is a funnel-shaped structure, and the silt extraction pipe (310) extends along the generatrix direction of the sedimentation cylinder (112) to the bottom of the sedimentation cylinder (112).

5. The composite reaction tank for treating strontium carbonate production waste residue according to claim 1, characterized in that: The vertical flow reaction tank (100) further comprises an overflow plate (170) and an adjusting device (180), wherein the overflow plate (170) is arranged on a side of the collecting tank (140) close to the horizontal flow sedimentation tank (200), and the adjusting device (180) is used to control the overflow plate (170) to slide in a vertical direction.

6. The composite reaction tank for treating strontium carbonate production waste residue according to claim 5, characterized in that: The adjusting device (180) comprises an adjusting base (181) and a screw (182); the adjusting base (181) is fixedly connected to the outer cylinder (110), the screw (182) is threadedly connected to the adjusting base (181), and the lower end of the screw (182) is rotatably connected to the overflow plate (170).

7. The composite reaction tank for treating strontium carbonate production waste residue according to claim 6, characterized in that: A hand wheel (183) is provided at the upper end of the screw rod (182).

8. The composite reaction tank for treating strontium carbonate production waste residue according to claim 6, characterized in that: The upper end of the overflow plate (170) is provided with a sawtooth structure.

9. The composite reaction tank for treating strontium carbonate production waste residue according to claim 1, characterized in that: The silt extraction mechanism (300) comprises a centrifugal pump (320), the input end of the centrifugal pump (320) is in communication with the silt extraction pipe (310), and the input end of the centrifugal pump (320) is in communication with the input end of the compressor.

10. The composite reaction tank for treating strontium carbonate production waste residue according to claim 1, characterized in that: A crossbeam (190) is provided at the upper end of the vertical flow reaction tank (100), and the central tube (120) is hoisted on the crossbeam (190).

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