A mixed waste acid liquid neutralization treatment device

Abstract

The utility model discloses a kind of mixed waste acid liquid neutralization treatment equipment, including neutralization tank, the side of the neutralization tank is fixedly connected with collecting tank by fixed link, mixing mechanism is provided in the neutralization tank, cleaning mechanism is provided in the collecting tank;The cleaning mechanism includes filter screen, the filter screen is located in collecting tank, the bottom outer wall of the collecting tank is fixedly connected with connecting frame, the inner wall of the collecting tank is rotatably connected with the connecting shaft of the through connecting frame by bearing, the side of the connecting shaft is fixedly connected with cleaning plate, the bottom of the cleaning plate and filter screen is contacted, this mixed waste acid liquid neutralization treatment equipment, by the rotation of connecting shaft, the cleaning plate can be rotated, the rotation of cleaning plate can scrape the bottom of filter screen, can make impurity fall to the bottom of collecting tank, thus, filter plate can be cleaned, realize the effect of guaranteeing filtering performance.

Description

Technical Field

[0001] This utility model relates to the field of acid treatment technology, specifically a neutralization treatment device for mixed waste acid. Background Technology

[0002] Acids are widely used in industries such as chemicals and steel. However, in actual production processes, the utilization rate of acids is very low. As a result, they are discharged as acidic wastewater. If this wastewater is discharged directly without treatment, it will acidify the water body and easily generate acid mist, damaging the ecological environment and causing great harm to the living environment of humans. In industrial operations, waste acid is neutralized by adding alkaline solutions. Therefore, a waste acid neutralization treatment device is needed.

[0003] Currently, Chinese patent CN210030145U discloses a neutralization treatment device for waste acid, including a mixing tank and a support frame for supporting the mixing tank. A partition is welded and fixed inside the mixing tank, and several through holes are formed on the surface of the partition. Bearings are embedded on both sides of the middle of the partition, and stirring bodies are symmetrically arranged at the bottom of the partition. The top of the stirring body is fitted with the inner ring of the bearing, and the bottom of the stirring body is rotatably connected to the inner wall of the mixing tank shell. A gear disk is fixedly sleeved on the bottom surface of the stirring body, and a first motor is installed at the bottom of the mixing tank. This invention, by setting up a mixing tank, allows waste acid and alkali to be introduced through a waste acid inlet and an alkali inlet, respectively. A second motor drives a screw rod and a stirring shaft to rotate, which can initially mix the alkali and waste acid. The initially mixed liquid overflows from the mixing tank through the overflow port and enters the cavity formed between the partition and the bottom of the mixing tank through the through holes on the surface of the partition.

[0004] However, when the above-mentioned device is in use, it relies on the static filter plate for filtration. As the usage time increases, a large amount of waste residue will accumulate on the surface of the filter plate, causing the filter plate to become clogged and affecting its filtration function.

[0005] Therefore, this utility model provides a neutralization treatment device for mixed waste acid. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a neutralization treatment device for mixed waste acid to solve the above problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a neutralization treatment device for mixed waste acid, including a neutralization tank, a collection tank fixedly connected to one side of the neutralization tank by a fixing rod, a mixing mechanism being provided inside the neutralization tank, and a cleaning mechanism being provided inside the collection tank;

[0008] The cleaning mechanism includes a filter screen plate located in a collection tank. A connecting frame is fixedly connected to the bottom outer wall of the collection tank. A connecting shaft passing through the connecting frame is rotatably connected to the inner wall of the collection tank via a bearing. A cleaning plate is fixedly connected to one side of the connecting shaft, and the cleaning plate is in contact with the bottom of the filter screen plate.

[0009] As a preferred embodiment of this utility model, the inner walls of both sides of the collection tank are fixedly connected with connecting plates, and the top of the connecting plates is provided with several connecting ports. The inner walls of the connecting ports are fixed to the frame of the filter screen plate by bolts.

[0010] As a preferred technical solution of this utility model, the mixing mechanism includes a rotating shaft located inside the neutralization box. Several arc-shaped stirring racks are fixedly connected to both sides of the rotating shaft. The arc centers of the stirring racks located on the same horizontal plane coincide, and the diameter of the stirring racks decreases sequentially from the outside to the inside.

[0011] As a preferred embodiment of this utility model, a plurality of spiral blades are fixedly connected to the surface of the rotating shaft, and the spiral blades correspond one-to-one with the stirring frame.

[0012] As a preferred technical solution of this utility model, a rotating motor is fixedly connected to the bottom outer wall of the neutralization box. The rotating motor is fixed to the rotating shaft, and the bottom output shaft of the rotating motor is connected to the connecting shaft through a belt and a pulley.

[0013] As a preferred technical solution of this utility model, an acid outlet is provided on one side of the top of the neutralization box, and the acid outlet is fixed to the inner wall of the top of the collection tank through a conveying pipe, and an alkali outlet is provided on the outer wall of the top of the neutralization box.

[0014] Beneficial effects

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] (1) The neutralization treatment equipment for mixed waste acid can rotate the cleaning plate by rotating the connecting shaft. The rotation of the cleaning plate can scrape the bottom of the filter screen, so that the impurities fall to the bottom of the collection tank. Therefore, the filter plate can be cleaned to ensure the filtration performance.

[0017] (2) The mixed waste acid neutralization treatment equipment can rotate the output shaft of the motor to make the rotating shaft rotate. The rotation of the rotating shaft can make the stirring rack and the spiral blade rotate. The rotation of the stirring rack and the spiral blade can make the mixed liquid perform vertical mixing and horizontal mixing operations, which can greatly improve the neutralization efficiency. Attached Figure Description

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

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0021] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0022] In the diagram: 1. Neutralization tank; 2. Collection tank; 3. Filter screen; 4. Connecting frame; 5. Connecting shaft; 6. Cleaning plate; 7. Connecting plate; 8. Connection port; 9. Rotating shaft; 10. Stirring frame; 11. Spiral blade; 12. Rotating motor; 13. Acid inlet; 14. Alkali inlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A neutralization treatment device for mixed waste acid includes a neutralization tank 1, a collection tank 2 fixedly connected to one side of the neutralization tank 1 by a fixing rod, a mixing mechanism inside the neutralization tank 1, and a cleaning mechanism inside the collection tank 2.

[0025] The cleaning mechanism includes a filter screen plate 3, which is located inside the collection tank 2. A connecting frame 4 is fixedly connected to the bottom outer wall of the collection tank 2. A connecting shaft 5, which passes through the connecting frame 4, is rotatably connected to the inner wall of the collection tank 2 via a bearing. A cleaning plate 6 is fixedly connected to one side of the connecting shaft 5. The cleaning plate 6 is in contact with the bottom of the filter screen plate 3. Connecting plates 7 are fixedly connected to both inner walls of the collection tank 2. Several connecting ports 8 are opened on the top of the connecting plates 7. The inner wall of the connecting ports 8 is fixed to the frame of the filter screen plate 3 by bolts.

[0026] Specifically, the rotation of the connecting shaft 5 causes the cleaning plate 6 to rotate, which scrapes the bottom of the filter screen 3, causing impurities to fall to the bottom of the collection tank 2. After use, the bottom of the collection tank 2 can be disassembled periodically, and the filter screen 3 can be disassembled for further cleaning or replacement. Therefore, the filter plate can be cleaned to ensure the filtration performance.

[0027] As a further improvement of this utility model, the mixing mechanism includes a rotating shaft 9, which is located inside the neutralization box 1. Several arc-shaped stirring racks 10 are fixedly connected to both sides of the rotating shaft 9. The arc centers of the stirring racks 10 located on the same horizontal plane coincide, and the diameter of the stirring racks 10 decreases sequentially from the outside to the inside.

[0028] Specifically, the rotation of the rotating shaft 9 can cause the stirring frame 10 and the spiral blade 11 to rotate, and the rotation of the stirring frame 10 and the spiral blade 11 can cause the mixture to be mixed vertically and horizontally.

[0029] As a further improvement of this utility model, a number of spiral blades 11 are fixedly connected to the surface of the rotating shaft 9, and the spiral blades 11 correspond one-to-one with the stirring rack 10. A rotating motor 12 is fixedly connected to the bottom outer wall of the neutralization box 1. The rotating motor 12 is fixed to the rotating shaft 9, and the bottom output shaft of the rotating motor 12 is connected to the connecting shaft 5 through a belt and a pulley.

[0030] Specifically, the output shaft of the rotating motor 12 can cause the rotating shaft 9 to rotate, and the rotation of the rotating shaft 9 can cause the stirring rack 10 and the spiral blade 11 to rotate.

[0031] As a further improvement of this utility model, an acid outlet 13 is provided on one side of the top of the neutralization box 1. The acid outlet 13 is fixed to the inner wall of the top of the collection tank 2 through a conveying pipe. An alkaline outlet 14 is provided on the outer wall of the top of the neutralization box 1.

[0032] Specifically, the waste acid enters the collection tank 2 through one side inlet and then enters the neutralization tank 1 through the acid outlet 13. The neutralization operation is carried out in conjunction with the alkali solution entering through the alkali outlet 14.

[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0034] The working principle of this utility model is as follows: During use, waste acid enters the collection tank 2 through one side inlet and then enters the neutralization tank 1 through the acid outlet 13. The neutralization operation is carried out in conjunction with the alkali solution entering through the alkali outlet 14. The rotating motor 12 is started, and the bottom output shaft of the rotating motor 12 can cause the connecting shaft 5 to rotate. The rotation of the connecting shaft 5 can cause the cleaning plate 6 to rotate. The rotation of the cleaning plate 6 can scrape the bottom of the filter screen plate 3, allowing impurities to fall to the bottom of the collection tank 2. After use, the bottom of the collection tank 2 can be disassembled periodically, and the filter screen plate 3 can be disassembled for further cleaning or replacement. Therefore, the filter plate can be cleaned to ensure the filtration performance.

[0035] With the start of the rotating motor 12, the output shaft of the rotating motor 12 can cause the rotating shaft 9 to rotate. The rotation of the rotating shaft 9 can cause the stirring rack 10 and the spiral blade 11 to rotate. The rotation of the stirring rack 10 and the spiral blade 11 can cause the mixture to be mixed vertically and horizontally, which can greatly improve the neutralization efficiency.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A neutralization treatment device for mixed waste acid, comprising a neutralization tank (1), wherein a collection tank (2) is fixedly connected to one side of the neutralization tank (1) by a fixing rod, characterized in that: The neutralization box (1) is equipped with a mixing mechanism, and the collection tank (2) is equipped with a cleaning mechanism; The cleaning mechanism includes a filter screen plate (3), which is located in the collection tank (2). A connecting frame (4) is fixedly connected to the bottom outer wall of the collection tank (2). A connecting shaft (5) that passes through the connecting frame (4) is rotatably connected to the inner wall of the collection tank (2) via a bearing. A cleaning plate (6) is fixedly connected to one side of the connecting shaft (5). The cleaning plate (6) is in contact with the bottom of the filter screen plate (3).

2. The mixed waste acid neutralization treatment equipment according to claim 1, characterized in that: The inner walls on both sides of the collection tank (2) are fixedly connected with connecting plates (7), and the top of the connecting plates (7) is provided with several connecting ports (8). The inner walls of the connecting ports (8) are fixed to the frame of the filter screen (3) by bolts.

3. The mixed waste acid neutralization treatment equipment according to claim 1, characterized in that: The mixing mechanism includes a rotating shaft (9) located inside the neutralization box (1). Several arc-shaped stirring racks (10) are fixedly connected to both sides of the rotating shaft (9). The arc centers of the stirring racks (10) located on the same horizontal plane coincide, and the diameter of the stirring racks (10) decreases sequentially from the outside to the inside.

4. The mixed waste acid neutralization treatment equipment according to claim 3, characterized in that: The surface of the rotating shaft (9) is fixedly connected with several spiral blades (11), and the spiral blades (11) correspond one-to-one with the stirring rack (10).

5. The mixed waste acid neutralization treatment equipment according to claim 4, characterized in that: A rotating motor (12) is fixedly connected to the bottom outer wall of the neutralization box (1). The rotating motor (12) is fixed to the rotating shaft (9). The bottom output shaft of the rotating motor (12) is connected to the connecting shaft (5) through a belt and pulley transmission.

6. The mixed waste acid neutralization treatment equipment according to claim 5, characterized in that: The neutralization tank (1) has an acid inlet (13) on one side of its top. The acid inlet (13) is fixed to the inner wall of the top of the collection tank (2) by a conveying pipe. The neutralization tank (1) has an alkaline inlet (14) on the outer wall of its top side.

Images