Extraction tower for purifying and recycling waste hydrochloric acid

Abstract

The utility model relates to the related technical field of waste hydrochloric acid purification treatment equipment, and provides an extraction tower for waste hydrochloric acid purification and recovery, which comprises a tower body and an inner interlayer, the inner interlayer is arranged in the tower body, a rotary stirring component is arranged between the tower body and the inner interlayer, and an exhaust component is arranged on the tower body and the inner interlayer. The rotary stirring assembly comprises a pair of sliding rails, the sliding rails are arranged at the top and the bottom in the tower body, the inner interlayer is slidably connected between the sliding rails, the inner interlayer and the sliding rails are in sealed rotary connection, and a plurality of flow pushing plates are arranged on the inner surface of the inner interlayer. According to the technical scheme, the problems that the extraction efficiency is low due to the fact that continuous stirring cannot be conducted in the extraction process in an existing extraction treatment mode in the related technology, and extraction and discharging are complex after extraction are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of waste hydrochloric acid purification and treatment equipment, specifically, to an extraction tower for waste hydrochloric acid purification and recovery. Background Technology

[0002] Waste hydrochloric acid is a type of waste acid generated in industrial production, with hydrochloric acid as its main component. It is typically produced during processes such as nitration, esterification, sulfonation, alkylation, catalysis, and gas drying of organic matter. In addition, waste hydrochloric acid is also generated during titanium dioxide production, steel pickling, and gas drying. Waste hydrochloric acid requires extraction treatment. Extraction utilizes the different partition coefficients of the components in the waste liquid in the solvent to extract metal ions from the pickling waste liquid.

[0003] Current extraction methods do not involve continuous agitation during the extraction process, resulting in low extraction efficiency. Furthermore, the extraction and discharge process after extraction is quite complex. Therefore, an extraction tower is proposed to address these issues. Utility Model Content

[0004] This invention proposes an extraction tower for the purification and recovery of waste hydrochloric acid, which solves the problems of low extraction efficiency and complex extraction and discharge processes in current extraction methods, which do not involve continuous agitation during the extraction process.

[0005] The technical solution of this utility model is as follows: including...

[0006] The tower body and the inner partition layer, wherein the inner partition layer is disposed inside the tower body;

[0007] A rotating agitator assembly is disposed between the tower body and the inner partition layer;

[0008] An exhaust assembly is disposed on the tower body and the inner partition;

[0009] The rotating agitator includes a pair of slide rails disposed at the top and bottom of the tower body. The inner partition is slidably connected between the slide rails and the slide rails are sealed and rotated. The inner surface of the inner partition is provided with a plurality of pusher plates.

[0010] As a further technical solution, a bearing seat is provided at the top of the tower body, and a rotating shaft is rotatably connected inside the bearing seat. A central hole is opened inside the rotating shaft, and an external gear is provided at the top of the rotating shaft.

[0011] As a further technical solution, a drive motor is provided at the top of the tower body, and a drive gear is provided at the output end of the drive motor. The drive gear meshes with the external gear, and several connecting rods are provided on the outer surface of the rotating shaft.

[0012] As a further technical solution, one end of the connecting rod is fixedly connected to the inner surface of the inner partition, a suction pump is provided at the top of the tower body, a round tube is movably connected inside the central hole, and a suction hood is provided at the lower end of the round tube.

[0013] As a further technical solution, the top of the suction hood is provided with several circular holes, the upper end of the circular tube is connected to the output end of the suction pump, and a telescopic cylinder is provided on the top of the tower body, with the output end of the telescopic cylinder connected to the circular tube.

[0014] As a further technical solution, the exhaust assembly includes several inner holes, which are evenly opened around the outer surface of the inner shroud. An air collection shroud is provided at the upper end of the side surface of the tower body, and a suction and purification fan is provided on the outer wall of the tower body.

[0015] As a further technical solution, the output end of the suction purification fan is connected to the air collection hood, and an air inlet is provided at the top of the tower body, which is located above the inner partition and the inner wall of the tower body.

[0016] As a further technical solution, the bottom of the tower body is a concave structure, and the concave part at the bottom of the tower body is the same as the suction hood structure.

[0017] As a further technical solution, the slide rail has a stepped cross-section.

[0018] The working principle and beneficial effects of this utility model are as follows:

[0019] 1. This utility model is equipped with a rotary stirring component. Through the interaction of structures such as a pusher plate, a rotating shaft, an external gear, a drive gear, a suction pump, a suction hood, and a telescopic cylinder, the waste hydrochloric acid and the extractant can be continuously pushed and stirred, which can accelerate the extraction efficiency. The liquid at the bottom is discharged by suction, which facilitates separation.

[0020] 2. This utility model is equipped with a suction component. Through the cooperation of the gas collection hood, inner hole, suction purification fan and air inlet, the gas inside the tower can be continuously discharged during the extraction process. The gas can be purified and discharged, which has a very good purification effect. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an isometric drawing of the present invention;

[0024] Figure 3 This is an isometric sectional view of the present invention;

[0025] Figure 4 Appendix to this utility model Figure 3 Enlarged view of part A in the middle;

[0026] In the diagram: 1. Tower body; 2. Inner partition; 3. Rotary agitator assembly; 3-1. Slide rail; 3-2. Pusher plate; 3-3. Shaft seat; 3-4. Rotating shaft; 3-5. Center hole; 3-6. External gear; 3-7. Drive motor; 3-8. Drive gear; 3-9. Connecting rod; 3-10. Suction pump; 3-11. Circular pipe; 3-12. Suction hood; 3-13. Circular hole; 3-14. Telescopic cylinder; 4. Exhaust assembly; 4-1. Inner hole; 4-2. Gas collection hood; 4-3. Suction purification fan; 4-4. Air inlet. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] like Figures 1-4 As shown, this embodiment proposes an extraction tower for the purification and recovery of waste hydrochloric acid, including...

[0029] The tower body 1 and the inner partition 2 are located inside the tower body 1;

[0030] Rotary agitator 3 is disposed between tower body 1 and inner partition 2;

[0031] Exhaust assembly 4 is installed on the tower body 1 and the inner partition 2;

[0032] The rotary agitator 3 includes a pair of slide rails 3-1, which are located at the top and bottom of the tower body 1. An inner partition 2 is slidably connected between the slide rails 3-1, and the inner partition 2 and the slide rails 3-1 are connected in a sealed rotatable manner. Several pusher plates 3-2 are provided on the inner surface of the inner partition 2. A bearing seat 3-3 is provided at the top of the tower body 1, and a rotating shaft 3-4 is rotatably connected within the bearing seat 3-3. A central hole 3-5 is provided within the rotating shaft 3-4, and an external gear 3-6 is provided at the top of the rotating shaft 3-4. A drive motor 3-7 is provided at the top of the tower body 1, and a drive gear 3-8 is provided at the output end of the drive motor 3-7. Gear 3-8 meshes with external gear 3-6. Several connecting rods 3-9 are provided on the outer surface of rotating shaft 3-4. One end of connecting rod 3-9 is fixedly connected to the inner surface of inner partition 2. A suction pump 3-10 is provided at the top of tower body 1. A round tube 3-11 is movably connected in the central hole 3-5. A suction hood 3-12 is provided at the lower end of round tube 3-11. Several round holes 3-13 are opened at the top of suction hood 3-12. The upper end of round tube 3-11 is connected to the output end of suction pump 3-10. A telescopic cylinder 3-14 is provided at the top of tower body 1. The output end of telescopic cylinder 3-14 is connected to round tube 3-11.

[0033] In this embodiment, to achieve continuous stirring and accelerate extraction, a rotary stirring component 3 is designed. Slide rails 3-1 are provided at both the top and bottom of the tower body 1. The inner partition 2 is slidably connected between the slide rails 3-1. A bearing seat 3-3 is provided at the bottom of the tower body 1, and a rotating shaft 3-4 is rotatably connected within the bearing seat 3-3. The lower end of the rotating shaft 3-4 is located inside the tower body 1. Multiple connecting rods 3-9 are provided on the outer surface of the rotating shaft 3-4, and the connecting rods 3-9 are connected to the inner partition. The rotating shaft 3-4 can drive the inner partition 2 to rotate. Multiple pusher plates 3-2 are provided on the inner surface of the inner partition 2, which can push the extractant and waste hydrochloric acid during rotation, thereby accelerating extraction. An external gear 3-6 is provided at the upper end of the rotating shaft 3-4. A drive motor 3-7 and a drive gear 3-8 are installed at the top of the tower body 1, and the drive gear 3-8 meshes with the external gear 3-6. The rotating shaft 3-4 can be controlled to rotate by the drive motor 3-7. The rotating shaft 3-4 has a central hole 3-5 inside, and a round tube 3-11 is movably fitted inside the central hole 3-5. A suction pump 3-10 is set at the top of the tower body 1 and its output end is connected to the round tube 3-11. A suction hood 3-12 is set at the lower end of the round tube 3-11 and has multiple round holes 3-13 at the top. The collection hood can block the outlet at the bottom of the tower body 1. The collection hood can work with the suction pump 3-10 to generate suction in the round holes 3-13, and discharge the extracted bottom liquid to the outside. A telescopic cylinder 3-14 is also set at the top of the tower body 1. The output end of the telescopic cylinder 3-14 is connected to the round tube 3-11. The telescopic cylinder 3-14 can push the round tube 3-11 upward to move the collection hood away from the outlet at the bottom of the tower body 1 and discharge another layer of liquid to the outside through the outlet.

[0034] Furthermore, the exhaust assembly 4 includes several inner holes 4-1, which are evenly distributed around the outer surface of the inner partition. A gas collection hood 4-2 is provided at the upper end of the side surface of the tower body 1. A suction and purification fan 4-3 is provided on the outer wall of the tower body 1. The output end of the suction and purification fan 4-3 is connected to the gas collection hood 4-2. An air inlet 4-4 is provided at the top of the tower body 1. The air inlet 4-4 is located above the inner partition 2 and the inner wall of the tower body 1.

[0035] In this embodiment, in order to achieve the effect of treating the gas generated during the extraction process, the exhaust component 4 is designed with multiple inner holes 4-1 around the outer surface of the inner partition 2. The tower body 1 is equipped with a gas collection hood 4-2 and a suction and purification fan 4-3, which can generate suction force from the gas collection hood 4-2 and the inner holes 4-1 to draw in the gas generated during extraction, purify it and then discharge it. The top of the tower body 1 is provided with an air inlet 4-4 to continuously introduce external air.

[0036] Furthermore, the bottom of the tower body 1 has a concave structure, and the concave part at the bottom of the tower body 1 has the same structure as the suction hood 3-12.

[0037] In this embodiment, the concave structure allows the suction hood 3-12 to be filled inside, fully suctioning the extracted and separated liquid outwards.

[0038] Furthermore, the cross-section of slide rail 3-1 has a stepped structure.

[0039] In this embodiment, the stepped structure enhances the sealing effect between the inner partition 2 and the slide rail 3-1.

[0040] When extraction is required, waste hydrochloric acid and extractant are poured into tower body 1. The drive motor 3-7 is started to control the inner partition 2 to rotate, and the liquid is continuously pushed by the pusher plate 3-2 for extraction. During the extraction process, the suction and purification fan 4-3 is kept running to continuously purify and discharge the gas generated inside. After the extraction is completed, the suction pump 3-10 is started to draw the liquid at the bottom outward. After the liquid is drawn out, the telescopic cylinder 3-14 is started to lift the suction hood 3-12. After lifting, the liquid is discharged outward through the outlet.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An extraction column for purification and recovery of waste hydrochloric acid, characterized by comprising: include The tower body (1) and the inner partition (2) are disposed inside the tower body (1); A rotating agitator (3) is disposed between the tower body (1) and the inner partition (2); An exhaust assembly (4) is disposed on the tower body (1) and the inner partition (2); The rotating agitator (3) includes a pair of slide rails (3-1), which are disposed at the top and bottom of the tower body (1). The inner partition (2) is slidably connected between the slide rails (3-1). The inner partition (2) and the slide rails (3-1) are connected in a sealed rotational manner. The inner surface of the inner partition (2) is provided with a plurality of pusher plates (3-2).

2. The extraction column for purification and recovery of waste hydrochloric acid according to claim 1, characterized in that, The top of the tower body (1) is provided with a bearing seat (3-3), and a rotating shaft (3-4) is rotatably connected inside the bearing seat (3-3). A central hole (3-5) is opened inside the rotating shaft (3-4), and an external gear (3-6) is provided on the top of the rotating shaft (3-4).

3. The extraction column for purification and recovery of waste hydrochloric acid according to claim 2, characterized in that, A drive motor (3-7) is provided on the top of the tower body (1). A drive gear (3-8) is provided at the output end of the drive motor (3-7). The drive gear (3-8) meshes with the external gear (3-6). Several connecting rods (3-9) are provided on the outer surface of the rotating shaft (3-4).

4. The extraction column for purification and recovery of waste hydrochloric acid according to claim 3, characterized in that, One end of the connecting rod (3-9) is fixedly connected to the inner surface of the inner partition (2). A suction pump (3-10) is provided at the top of the tower body (1). A round tube (3-11) is movably connected inside the central hole (3-5). A suction hood (3-12) is provided at the lower end of the round tube (3-11).

5. The extraction column for purification and recovery of waste hydrochloric acid according to claim 4, characterized in that, The top of the suction hood (3-12) has several round holes (3-13), the upper end of the round tube (3-11) is connected to the output end of the suction pump (3-10), and the top of the tower body (1) is provided with a telescopic cylinder (3-14), the output end of the telescopic cylinder (3-14) is connected to the round tube (3-11).

6. The extraction column for purification and recovery of waste hydrochloric acid according to claim 1, characterized in that, The exhaust assembly (4) includes several inner holes (4-1), which are evenly distributed around the outer surface of the inner shroud. A gas collection shroud (4-2) is provided at the upper end of the side surface of the tower body (1), and a suction and purification fan (4-3) is provided on the outer wall of the tower body (1).

7. The extraction column for purification and recovery of waste hydrochloric acid according to claim 6, characterized in that, The output end of the suction purification fan (4-3) is connected to the air collection hood (4-2). The top of the tower body (1) is provided with an air inlet (4-4), which is located above the inner partition (2) and the inner wall of the tower body (1).

8. The extraction column for purification and recovery of waste hydrochloric acid according to claim 4, characterized in that, The bottom of the tower body (1) is a concave structure, and the concave part at the bottom of the tower body (1) has the same structure as the suction hood (3-12).

9. The extraction column for purification and recovery of waste hydrochloric acid according to claim 1, characterized in that, The slide rail (3-1) has a stepped cross-section.

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