Mixed reaction device for treating waste hydrofluoric acid through percolate

Abstract

The utility model belongs to the technical field of waste liquid treatment, and discloses a mixed reaction device for treating waste hydrofluoric acid with leachate, which comprises a capsule-shaped reaction tank, a plurality of feeding pipes are mounted at the top of the reaction tank, a rotating shaft is rotatably mounted in the reaction tank, a motor is mounted at the end of the reaction tank, and the motor is connected with the feeding pipes. The output end of the motor is connected with the rotating shaft, the rotating shaft is provided with stirring blades, and the output end of the reaction tank is connected with a discharging pipe; a precipitation tank is arranged at the bottom in the reaction tank, a material receiving disc is slidably mounted on the precipitation tank, and lock catch mechanisms are mounted between two ends of the precipitation tank and two ends of the material receiving disc; two limiting grooves are formed in the bottom of the reaction tank, supporting legs are slidably mounted in the two limiting grooves, the supporting legs are provided with cambered surfaces profiled on the outer wall of the reaction tank, a plurality of spring mounting grooves are uniformly formed in the cambered surfaces, springs are placed in the spring mounting grooves, and vibration motors are mounted on the side surfaces of the supporting legs.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waste liquid treatment technical field, concretely relates to a kind of mixed reaction device of leachate collaborative treatment waste hydrofluoric acid. BACKGROUND

[0002] The leachate generated in landfill has complex composition, and the cations mainly include potassium ions, sodium ions and calcium ions. Currently, the main method for treating the leachate is three-effect evaporation treatment. However, the calcium ions have a great impact on the evaporation equipment, mainly in the following aspects: first, the calcium ions are easy to form calcium sulfate and calcium carbonate with sulfate and carbonate, which causes fouling of the equipment and blockage of the pipeline, resulting in a sharp decrease in the three-effect heat exchange efficiency; second, the calcium ions have high solubility and cannot form crystals, so that the evaporation capacity sharply decreases and the treatment capacity greatly reduces when the material containing a large amount of calcium ions is evaporated and concentrated to a certain degree; third, the calcium ion content in the mother liquor after three-effect evaporation is high, so that the cost of auxiliary materials is extremely high if the calcium ions are removed by adding calcium carbonate before evaporation.

[0003] During the treatment process, alkaline substances (such as lime milk) are usually added to the waste hydrofluoric acid to make the fluorine ions react with the calcium ions to form calcium fluoride precipitate, so as to remove the fluorine ions. Meanwhile, some components in the leachate may also react with other substances in the waste hydrofluoric acid to form precipitate. The precipitate is usually discharged together with the liquid for subsequent treatment. However, a large amount of precipitate is inevitably left in the mixed reaction device, so how to conveniently treat the precipitate is also a point to be considered. UTILITY MODEL CONTENT

[0004] In view of the problems in the above background technology, the utility model aims to provide a mixed reaction device for collaborative treatment of leachate and waste hydrofluoric acid.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] A mixed reaction device for collaborative treatment of leachate and waste hydrofluoric acid, comprising a reaction tank, wherein the reaction tank has a capsule shape, a plurality of feeding pipes are installed on the top of the reaction tank, a rotating shaft is rotatably installed in the reaction tank, a motor is installed on the end of the reaction tank, the output end of the motor is connected with the rotating shaft, stirring blades are installed on the rotating shaft, and a discharging pipe is connected with the output end of the reaction tank.

[0007] The bottom of the reaction tank is provided with a sedimentation tank, a receiving tray is slidably mounted on the sedimentation tank, and a locking mechanism is installed between the sedimentation tank and the two ends of the receiving tray;

[0008] Two limiting grooves are installed at the bottom of the reaction tank, and support feet are slidably installed in the two limiting grooves. The support feet are provided with an arc surface that imitates the outer wall of the reaction tank. The arc surface is evenly provided with a number of spring installation grooves. Springs are placed in the spring installation grooves. The springs are in contact with the outer wall of the reaction tank. A vibration motor is installed on the side of the support foot, and the output end of the vibration motor is in contact with the lower end surface of the limiting groove.

[0009] It is further defined that the locking mechanism includes a buckle plate hingedly mounted on the sedimentation tank, and the locking mechanism includes L-shaped buckle blocks fixedly mounted on both ends of the receiving tray, the position specifications of the buckle plate match the L-shaped buckle blocks, and the ends of the buckle plate are threadedly connected with screws. With this design, the buckle plate is rotated so that the buckle plate is stuck in the L-shaped buckle block to complete the locking of the docking tray, and the tightening of the screws further enhances the fixing strength of the docking tray.

[0010] It is further defined that a sealing ring is installed on the edge of the withdrawal end of the receiving tray, and this design prevents leakage.

[0011] It is further defined that the stirring blade is a combination of two sections of spiral stirring blades pushed toward the center. With this design, the liquid inside the reaction tank will form two impact flows moving toward the middle during the mixing stage. Under this impact, the effect of the mixing reaction is enhanced. At the same time, the mixing flow toward the middle makes it easy for the sediment to accumulate into the receiving tray in the middle position.

[0012] It is further defined that there are at least two feeding pipes, and flanges are installed at the ends of the feeding pipes. Such a design is conducive to the simultaneous addition of multiple raw materials, and the structure of the flanges is conducive to docking.

[0013] The beneficial effects of adopting the utility model are:

[0014] The structural design of the utility model ensures the mixing effect under the effect of the stirring blade. Furthermore, starting the vibration motor will cause the entire reaction tank to vibrate, thereby enhancing the mixing effect and ensuring the completeness of the reaction.

[0015] With the structural design of the utility model, the sediment will fall into the receiving tray under its own weight and accumulate. After a period of time, most of the sediment can be processed by directly taking out the receiving tray, ensuring the normal operation of the mixing reaction, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0017] Figure 1 It is a structure schematic view of a kind of leachate collaborative processing waste hydrogen fluoride's mixed reaction device embodiment of the utility model;

[0018] Figure 2 It is a section structure schematic view of a kind of leachate collaborative processing waste hydrogen fluoride's mixed reaction device embodiment of the utility model;

[0019] Figure 3 It is the partial structure schematic view of the receiving tank of a kind of leachate collaborative processing waste hydrogen fluoride's mixed reaction device embodiment of the utility model;

[0020] Figure 4 It is Figure 1 Amplification structure schematic view at A place in it;

[0021] Main element symbol is explained as follows:

[0022] Reaction tank 1;Inlet pipe 2;Shaft 3;Motor 4;Stirring blade 5;Discharge pipe 6;Sedimentation tank 7;Receiving tray 8;Locking mechanism 9;Limiting groove 10;Supporting leg 11;Camber 12;Spring mounting groove 13;Spring 14;Vibration motor 15;

[0023] Latching plate 91;L-shaped latching block 92;Screw 93. Specific embodiment

[0024] In order to make those skilled in the art better understand the utility model, the utility model technical scheme is further explained below in connection with the drawings and examples.

[0025] As Figures 1 to 4 Indicated, a kind of leachate collaborative processing waste hydrogen fluoride's mixed reaction device of the utility model, including reaction tank 1, reaction tank 1 is capsule shape, reaction tank 1 top is equipped with several inlet pipes 2, rotationally installed in reaction tank 1 inside shaft 3, reaction tank 1 end is equipped with motor 4, motor 4 output and shaft 3 are connected, shaft 3 is equipped with stirring blade 5, reaction tank 1 output is connected with discharge pipe 6;

[0026] Reaction tank 1 inner bottom is equipped with sedimentation tank 7, sedimentation tank 7 is slidably installed with receiving tray 8, and locking mechanism 9 is installed between the both ends of sedimentation tank 7 and receiving tray 8;

[0027] Reaction tank 1 bottom is equipped with two limiting grooves 10, and supporting leg 11 is slidably installed in the two limiting grooves 10, supporting leg 11 is equipped with camber 12 shaped in the outer wall of reaction tank 1, camber 12 is evenly equipped with several spring mounting grooves 13, spring 14 is placed in spring mounting groove 13, spring 14 is in contact with the outer wall of reaction tank 1, vibration motor 15 is installed on the side surface of supporting leg 11, and the lower end surface of limiting groove 10 is contacted with the output end of vibration motor 15.

[0028] In this embodiment, when a mixed reaction device for co-processing waste hydrofluoric acid with leachate is used, the motor 4 is started to drive the stirring blade 5 to rotate in the reaction tank 1, and the waste hydrofluoric acid and leachate are fed into the reaction tank 1 from the feed pipe 2, and mixed and reacted under the effect of the stirring blade 5. After a period of time, the waste hydrofluoric acid is discharged from the discharge pipe 6 for subsequent treatment;

[0029] The precipitate formed by the waste hydrofluoric acid and leachate in the reaction tank 1 falls into the receiving tray 8 located in the lower sedimentation tank 7 under its own weight for accumulation. After a period of use, the interior of the reaction tank 1 is emptied, and the locking mechanism 9 is opened, and the receiving tray 8 can be directly pulled out, and the precipitate in the receiving tray 8 can be directly processed, so as to achieve the purpose of cleaning up the precipitate in large quantities at one time;

[0030] During the mixing of waste hydrofluoric acid and leachate in the reaction tank 1, in addition to the stirring and mixing by the stirring blade 5, further, starting the vibration motor 15 can drive the reaction tank 1 to shake on the upper side of the support foot 11 under the limit of the limit groove 10. The effect of the spring 14 intensifies the shaking effect of the reaction tank 1 while also playing a certain buffering effect, causing the liquid inside the reaction tank 1 to oscillate, thereby enhancing the mixing reaction effect.

[0031] Preferably, the locking mechanism 9 includes a buckle plate 91 hingedly mounted on the sedimentation tank 7, and the locking mechanism 9 includes an L-shaped buckle block 92 fixedly mounted on both ends of the receiving tray 8. The position specifications of the buckle plate 91 match the L-shaped buckle block 92, and the end of the buckle plate 91 is threadedly connected with a screw 93. With this design, the buckle plate 91 is rotated so that the buckle plate 91 is stuck in the L-shaped buckle block 92 to complete the locking of the docking tray 8. The tightening of the screw 93 further strengthens the fixing strength of the docking tray 8. In fact, the structure of the locking mechanism 9 can also be considered according to specific circumstances.

[0032] Preferably, a sealing ring is installed on the edge of the withdrawal end of the receiving tray 8. Such a design prevents leakage. In fact, sealing measures can also be considered according to specific circumstances.

[0033] Preferably, the stirring blade 5 is a combination of two spiral stirring blades pushed toward the center. With this design, the liquid inside the reaction tank 1 will form two impact flows moving toward the middle during the mixing stage. Under this impact, the effect of the mixing reaction is enhanced. At the same time, the mixed flow toward the middle makes it easy for the precipitate to accumulate in the receiving tray 8 in the middle position. In fact, the structural shape of the stirring blade 5 can also be considered according to the specific situation.

[0034] It is preferred that there are at least two feed pipes 2, and flanges are installed at the ends of the feed pipes 2. This design is conducive to the simultaneous addition of multiple raw materials, and the structure of the flanges is conducive to docking. In fact, the number and location of the feed pipes 2 can also be considered according to specific circumstances.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A mixed reaction device for leachate-co-treatment of waste hydrofluoric acid, comprising a reaction tank (1), characterized in that: The reaction tank (1) is in the shape of a capsule, a plurality of feed pipes (2) are installed on the top of the reaction tank (1), a rotating shaft (3) is rotatably installed inside the reaction tank (1), a motor (4) is installed at the end of the reaction tank (1), the output end of the motor (4) is connected to the rotating shaft (3), the rotating shaft (3) is installed with a stirring blade (5), and the output end of the reaction tank (1) is connected to a discharge pipe (6); The bottom of the reaction tank (1) is provided with a sedimentation tank (7), a receiving tray (8) is slidably mounted on the sedimentation tank (7), and a locking mechanism (9) is mounted between the two ends of the sedimentation tank (7) and the receiving tray (8); Two limiting grooves (10) are installed at the bottom of the reaction tank (1), and support feet (11) are slidably installed in the two limiting grooves (10). The support feet (11) are provided with an arc surface (12) that imitates the outer wall of the reaction tank (1), and the arc surface (12) is evenly provided with a plurality of spring installation grooves (13). Springs (14) are placed in the spring installation grooves (13), and the springs (14) are in contact with the outer wall of the reaction tank (1). A vibration motor (15) is installed on the side of the support foot (11), and the output end of the vibration motor (15) is in contact with the lower end surface of the limiting groove (10).

2. The hybrid reaction device for co-processing waste hydrofluoric acid with leachate according to claim 1, characterized in that: The locking mechanism (9) includes a buckle plate (91) hingedly mounted on the sedimentation tank (7), and the locking mechanism (9) includes L-shaped buckle blocks (92) fixedly mounted on both ends of the receiving tray (8). The position specification of the buckle plate (91) matches the L-shaped buckle blocks (92), and the end of the buckle plate (91) is threadedly connected with a screw (93).

3. The hybrid reaction device for co-processing waste hydrofluoric acid with leachate according to claim 2, characterized in that: A sealing ring is installed on the edge of the extraction end of the receiving tray (8).

4. The hybrid reaction device for co-processing waste hydrofluoric acid with leachate according to claim 3, characterized in that: The stirring blade (5) is a combination of two sections of spiral stirring blades that push toward the center.

5. The hybrid reaction device for co-processing waste hydrofluoric acid with leachate according to claim 4, characterized in that: There are at least two feed pipes (2), and flanges are installed at the ends of the feed pipes (2).

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