A waste acid precipitation column

Abstract

The utility model relates to waste acid precipitation tower technical field, and disclose a kind of waste acid precipitation tower, including support bottom frame, the front of support bottom frame is fixedly installed with control box by support frame, the top of support bottom frame is provided with mounting slot. By being provided with umbrella-shaped uniform hopper, waste acid is uniformly dispersed through the falling hole of bottom, avoid waste acid concentrated impact tower inner structure, create stable condition for subsequent processing, make waste acid more evenly contact with each processing component, simultaneously, the flow path and contact area of waste acid are increased by lightweight polypropylene inclined pipe in the first installation cavity, can effectively promote the settlement of suspended particles in waste acid, realize preliminary purification, cooperate with the density ceramic ball in the second installation cavity to further filter and adsorb waste acid, more impurities and pollutants can be removed, and the conical sedimentation tank in the precipitation cavity can effectively gather precipitate, to improve the effect of acid liquor purification degree.

Description

Technical Field

[0001] This utility model relates to the field of waste acid precipitation tower technology, specifically a waste acid precipitation tower. Background Technology

[0002] A waste acid precipitation tower is a device used to separate solid impurities or precipitates from waste acid, achieving solid-liquid separation through methods such as gravity settling, chemical precipitation, or filtration. Nitration is a key step in explosives production (such as nitroglycerin, TNT, and ammonium nitrate explosives), typically using concentrated sulfuric acid or nitric acid as the nitrating agent. The reaction produces a large amount of waste acid, which may contain: unreacted acids such as sulfuric acid and nitric acid; byproducts such as sulfonic acid and nitrate esters; and solid impurities such as carbides, metal ions (from equipment corrosion), or incompletely reacted raw materials. Direct discharge of this waste acid not only causes serious pollution to soil, water bodies, and other ecological environments, disrupting the ecological balance, but also endangers human health. Currently, there are various methods for treating waste acid, among which precipitation is widely used due to its relatively simple operation and low cost. However, traditional waste acid precipitation equipment has many problems in actual operation. For example, the waste acid is often unevenly distributed when entering the precipitation equipment, resulting in some areas being overloaded while others are not fully utilized, affecting the overall treatment efficiency; during the precipitation process, the settling effect of suspended particles is poor, requiring a long treatment time, and the purification level is limited, making it difficult to meet high emission standards; when adding treatment agents, most methods use a single pipe or local addition, resulting in insufficient mixing of the agent and waste acid, which not only wastes the agent but also fails to guarantee the stability of the treatment effect. Therefore, it is necessary to design a waste acid precipitation tower. Utility Model Content

[0003] The purpose of this invention is to provide a waste acid precipitation tower that solves the technical problems of low precipitation efficiency and incomplete impurity separation, thereby achieving the goal of precipitation and separation of impurities.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a waste acid precipitation tower, comprising a supporting bottom frame, a control box fixedly mounted on the front of the supporting bottom frame via a support frame, an installation groove opened at the top of the supporting bottom frame, and a precipitation tower shell fixedly mounted inside the installation groove, a fixing cap fixedly mounted at the top of the precipitation tower shell, a feed pipe connected to the top of the fixing cap, a circular support frame fixedly mounted on the outer wall of the precipitation tower shell, and installation semi-circular holes evenly spaced on the outer wall of the precipitation tower shell, with two sets of staged replacement semi-circular doors hinged inside the installation semi-circular holes; a decomposition processing component, the decomposition processing component being disposed inside and outside the precipitation tower shell; the decomposition processing component comprising: a decomposition part, the decomposition part being disposed inside the supporting bottom frame; and a cleaning and discharge part, the cleaning and discharge part being disposed inside and outside the supporting bottom frame, and the cleaning and discharge part being disposed below and outside the decomposition part.

[0005] Preferably, the decomposition part includes: an umbrella-shaped uniform feeding hopper, which is fixedly installed on the inner wall of the fixed top cap and located below the feed pipe; the bottom circumference of the umbrella-shaped uniform feeding hopper is provided with equally spaced drop holes, a first mounting cavity is provided below the umbrella-shaped uniform feeding hopper, a second mounting cavity is provided below the first mounting cavity, and a honeycomb plate is fixedly installed between the first mounting cavity and the second mounting cavity.

[0006] Preferably, a sedimentation chamber is provided below the second mounting chamber, and lightweight polypropylene inclined tubes are uniformly and equidistantly installed inside the first mounting chamber, located at the top of the honeycomb plate. A second honeycomb plate is provided below the honeycomb plate and located between the sedimentation chamber and the second mounting chamber. Density ceramic balls are provided below the lightweight polypropylene inclined tubes, and the density ceramic balls are uniformly and equidistantly arranged at the top of the second honeycomb plate.

[0007] Preferably, the outer wall of the second mounting cavity is connected to an extraction pipe, the inner wall of the sedimentation cavity is fixedly installed with a conical sedimentation hopper, the bottom of the conical sedimentation hopper is connected to an inverted fan-shaped guide plate, and the inverted fan-shaped guide plate extends to the bottom of the sedimentation tower shell.

[0008] Preferably, the cleaning and discharge section includes: a diagonal plate, which is fixedly installed on the outer wall of the second mounting cavity and located at the bottom of the honeycomb plate, and there are four sets of diagonal plates; a drug storage tank, which is fixedly installed on the top of the circular support frame; an annular dosing pipe is fixedly installed inside the diagonal plate; a detector is fixedly installed on the outer wall of the diagonal plate; and spray heads are equidistantly connected to the outer circumference of the annular dosing pipe.

[0009] Preferably, a replenishment pipe is connected to the top of the drug storage tank, and a delivery pump is fixedly installed inside the drug storage tank. The connection port of the delivery pump is connected to the annular dosing pipe through a connecting pipe.

[0010] Preferably, a motor is installed below the annular dosing pipe, and the motor is fixedly installed at the bottom of the inner wall of the supporting base frame and installed below the sedimentation tower shell through a protective sleeve. The output end of the motor is provided with a rotating rod through a coupling, and the rotating rod passes through the bottom of the sedimentation tower shell and extends into the interior of the conical sedimentation hopper.

[0011] Preferably, the outer wall of the rotating rod is uniformly fitted with guide spiral blades at equal intervals, and the top of the rotating rod is fixedly mounted with an edge mounting bracket by a mounting ring. There are two sets of these brackets, arranged symmetrically, and the outer wall of the edge mounting bracket is fitted with an anti-clogging scraping plate.

[0012] This invention provides a waste acid precipitation tower. It has the following beneficial effects: (1) This utility model uses an umbrella-shaped uniform feeding hopper to evenly disperse waste acid through the bottom drop hole, avoiding the waste acid from concentrating and impacting the internal structure of the tower, creating stable conditions for subsequent treatment, allowing the waste acid to contact each treatment component more evenly. At the same time, the lightweight polypropylene inclined tube in the first installation chamber increases the flow path and contact area of ​​the waste acid, which can effectively promote the sedimentation of suspended particles in the waste acid and achieve preliminary purification. Combined with the density ceramic balls in the second installation chamber, the waste acid is further filtered and adsorbed, which can remove more impurities and pollutants. The conical sedimentation hopper in the sedimentation chamber can effectively collect the sediment, and with the inverted fan-shaped guide plate, the sediment is ensured to be discharged smoothly, so that the quality of the treated acid is guaranteed and the degree of acid purification is improved.

[0013] (2) This utility model uses a ring-shaped dosing pipe on a diagonal plate to precisely add the agent through the spray head. Combined with real-time monitoring by the detector, the amount of agent added can be flexibly adjusted according to the waste acid index, ensuring the accuracy of agent use and the stability of treatment effect. It avoids the situation where the agent is wasted or insufficient, affecting the treatment quality. At the same time, the cooperation between the storage tank and the delivery pump realizes the stable supply of the agent, ensuring that the dosing process is uninterrupted. The guide spiral blade on the rotating rod driven by the motor can push the precipitate downward. The anti-clogging scraper on the side mounting arm can scrape the precipitate on the inner wall of the conical sedimentation bucket, effectively preventing blockage and ensuring that the slag discharge channel is unobstructed, thereby improving the separation efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of a waste acid precipitation tower according to the present invention; Figure 3 This is a side view of the structure of the filter section of a waste acid precipitation tower according to this utility model; Figure 4 This is a side view of the structure of the waste acid precipitation tower decomposition and discharge point of this utility model.

[0015] In the diagram: 1 Supporting base frame, 2 Control box, 3 Sedimentation tower shell, 31 Circular support frame, 32 Stage replacement semi-circular door, 4 Fixed top cap, 5 Feed pipe, 6 Decomposition processing component, 61 Decomposition part, 611 Umbrella-shaped uniform discharge hopper, 612 Drop hole, 613 First mounting cavity, 614 Second mounting cavity, 615 Sedimentation cavity, 616 Lightweight polypropylene inclined tube, 617 Density ceramic ball, 618 Extraction pipe, 619 Conical sedimentation hopper, 6110 Reverse fan-shaped guide plate, 62 Cleaning and discharge part, 621 Diagonal plate, 622 Circular dosing pipe, 623 Detector, 624 Spray head, 625 Drug storage tank, 626 Transfer pump, 627 Motor, 628 Rotating rod, 629 Guide spiral blade, 6210 Edge mounting bracket arm, 6211 Anti-clogging scraper. Detailed Implementation

[0016] 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.

[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0018] Based on the existing problems of low precipitation efficiency and incomplete impurity separation, the preferred embodiment of the waste acid precipitation tower provided by this utility model is as follows: Figure 1-4The diagram shows a waste acid precipitation tower, comprising a supporting base frame 1, a control box 2 fixedly mounted on the front of the supporting base frame 1 via a support frame, an installation groove on the top of the supporting base frame 1, and a precipitation tower shell 3 fixedly mounted inside the installation groove, a fixed top cap 4 fixedly mounted on the top of the precipitation tower shell 3, a feed pipe 5 connected to the top of the fixed top cap 4, a circular support frame 31 fixedly mounted on the outer wall of the precipitation tower shell 3, and two sets of mounting semi-circular holes evenly spaced on the outer wall of the precipitation tower shell 3, with a staged replacement semi-circular door 32 hinged inside each semi-circular hole; and a decomposition processing component 6, disposed inside and outside the precipitation tower shell 3; the decomposition processing component 6 includes: a decomposition part 61 disposed inside the supporting base frame 1; and a cleaning and discharge part 62 disposed inside and outside the supporting base frame 1, with the cleaning and discharge part 62 located below and outside the decomposition part 61.

[0019] The disassembly section 61 includes: an umbrella-shaped uniform feeding hopper 611, which is fixedly installed on the inner wall of the fixed top cap 4 and located below the feed pipe 5; the bottom circumference of the umbrella-shaped uniform feeding hopper 611 is provided with equal-distance drop holes 612, a first mounting cavity 613 is provided below the umbrella-shaped uniform feeding hopper 611, a second mounting cavity 614 is provided below the first mounting cavity 613, and a honeycomb plate is fixedly installed between the first mounting cavity 613 and the second mounting cavity 614.

[0020] A sedimentation chamber 615 is provided below the second mounting cavity 614. Lightweight polypropylene inclined tubes 616 are evenly and equidistantly installed inside the first mounting cavity 613, located at the top of the honeycomb plate. A second honeycomb plate is provided below the honeycomb plate, located between the sedimentation chamber 615 and the second mounting cavity 614. Density ceramic balls 617 are provided below the lightweight polypropylene inclined tubes 616, and the density ceramic balls 617 are evenly and equidistantly arranged at the top of the second honeycomb plate.

[0021] The outer wall of the second installation cavity 614 is connected to an extraction pipe 618, and the inner wall of the sedimentation cavity 615 is fixedly installed with a conical sedimentation hopper 619. The bottom of the conical sedimentation hopper 619 is connected to an inverted fan-shaped guide plate 6110, and the inverted fan-shaped guide plate 6110 extends to the bottom of the sedimentation tower shell 3.

[0022] Furthermore, in this embodiment, the waste acid is evenly dispersed through the bottom drop hole 612 by the umbrella-shaped uniform feed hopper 611, avoiding concentrated impact of waste acid on the internal structure of the tower. This creates stable conditions for subsequent treatment, allowing the waste acid to contact each treatment component more evenly. At the same time, the lightweight polypropylene inclined tube 616 in the first mounting cavity 613 increases the flow path and contact area of ​​the waste acid, effectively promoting the sedimentation of suspended particles in the waste acid and achieving preliminary purification. Combined with the density ceramic balls 617 in the second mounting cavity 614, the waste acid is further filtered and adsorbed, removing more impurities and pollutants. The conical sedimentation hopper 619 in the sedimentation cavity 615 effectively collects the precipitate, and with the inverted fan-shaped guide plate 6110, the precipitate is smoothly discharged, ensuring the quality of the treated acid solution. Example

[0023] Based on Example 1, a preferred embodiment of the waste acid precipitation tower provided by this utility model is as follows: Figure 1-4 As shown: the cleaning and discharge section 62 includes: a diagonal plate 621, which is fixedly installed on the outer wall of the second mounting cavity 614 and located at the bottom of the honeycomb plate, and there are four sets in total; a medicine storage tank 625, which is fixedly installed on the top of the circular support frame 31; an annular dosing pipe 622 is fixedly installed inside the diagonal plate 621, a detector 623 is fixedly installed on the outer wall of the diagonal plate 621, and a spray head 624 is equidistantly connected to the outer circumference of the annular dosing pipe 622.

[0024] A replenishment pipe is connected to the top of the drug storage tank 625, and a delivery pump 626 is fixedly installed inside the drug storage tank 625. The connection port of the delivery pump 626 is connected to the annular dosing pipe 622 through a connecting pipe.

[0025] A motor 627 is installed below the annular dosing pipe 622, and the motor 627 is fixedly installed on the bottom of the inner wall of the supporting base frame 1 and is installed below the sedimentation tower shell 3 through a protective sleeve. The output end of the motor 627 is provided with a rotating rod 628 through a coupling, and the rotating rod 628 passes through the bottom of the sedimentation tower shell 3 and extends into the interior of the conical sedimentation hopper 619.

[0026] The outer wall of the rotating rod 628 is uniformly fitted with guide spiral blades 629 at equal intervals. The top of the rotating rod 628 is fixedly installed with an edge mounting bracket 6210 by a mounting ring. There are two sets of these brackets, which are arranged symmetrically. The outer wall of the edge mounting bracket 6210 is fitted with an anti-clogging scraper 6211.

[0027] Furthermore, in this embodiment, the annular dosing pipe 622 on the diagonal plate 621 precisely adds the reagent through the spray head 624. Combined with the real-time monitoring of the detector 623, the reagent dosage can be flexibly adjusted according to the waste acid index, ensuring the accuracy of reagent use and the stability of treatment effect. This avoids situations where reagent waste or insufficient reagent affects the treatment quality. At the same time, the cooperation between the reagent storage tank 625 and the delivery pump 626 achieves a stable supply of reagent, ensuring uninterrupted dosing. The guide spiral blade 629 on the rotating rod 628 driven by the motor 627 can push the precipitate downward. The anti-clogging scraper 6211 on the edge mounting arm 6210 can scrape the precipitate on the inner wall of the conical sedimentation hopper 619, effectively preventing blockage and ensuring unobstructed slag discharge channel.

[0028] In operation, the waste acid to be treated first enters the interior of the sedimentation tower shell 3 through the feed pipe 5. At this time, the umbrella-shaped uniform feed hopper 611, located on the inner wall of the fixed top cap 4 and below the feed pipe 5, will play its role. After the waste acid falls into the umbrella-shaped uniform feed hopper 611, it is evenly dispersed through the equally spaced drop holes 612 at the bottom circumference, avoiding the waste acid from concentrating and impacting the internal structure of the tower, thus providing stable initial conditions for subsequent treatment. The dispersed waste acid enters the first mounting chamber 613. Lightweight polypropylene inclined tubes 616, evenly spaced and installed at equal intervals on top of the honeycomb plate, provide initial guidance and promote sedimentation of the waste acid. The structure of the lightweight polypropylene inclined tubes 616 increases the flow path and contact area of ​​the waste acid, causing some suspended particles in the waste acid to begin settling under gravity. Furthermore, after being processed in the first mounting cavity 613, the waste acid enters the second mounting cavity 614 through the honeycomb plate. Inside the second mounting cavity 614, evenly spaced density ceramic balls 617 on the top of the second honeycomb plate below the honeycomb plate further filter and adsorb the waste acid, removing more impurities and contaminants. Simultaneously, the extraction pipe 618 connected to the outer wall of the second mounting cavity 614 can extract the pre-treated acid solution as needed for subsequent testing or further processing. Furthermore, during the treatment process in the second installation cavity 614, the relevant components of the cleaning and discharge section 62 also begin to operate. Four sets of diagonal plates 621, fixed to the outer wall of the second installation cavity 614 and located at the bottom of the honeycomb panel, have annular dosing pipes 622 fixedly installed inside them, which add chemicals to the waste acid through spray heads 624 that are equidistantly connected around the circumference of the outer wall. The chemicals are supplied by a storage tank 625 fixed to the top of the circular support frame 31, and a delivery pump 626 inside the storage tank 625 delivers the chemicals to the annular dosing pipes 622 through connecting pipes. Detectors 623 fixedly installed on the outer wall of the diagonal plates 621 monitor various indicators of the waste acid in real time, adjusting the amount of chemicals added based on the detection results to ensure the treatment effect. The treated waste acid enters the sedimentation chamber 615, where it undergoes final sedimentation in the conical sedimentation hopper 619 fixedly installed on the inner wall of the sedimentation chamber 615. Under the action of gravity, the precipitate in the waste acid gathers at the bottom of the conical sedimentation hopper 619 and is discharged from the outer shell 3 of the sedimentation tower through the inverted fan-shaped guide plate 6110 connected to the bottom of the conical sedimentation hopper 619. To prevent blockage inside the conical sedimentation hopper 619, a motor 627, fixedly installed at the bottom of the inner wall of the supporting base frame 1, is positioned below the sedimentation tower shell 3 via a protective sleeve. This motor drives a rotating rod 628, connected to the output end via a coupling, to rotate. The rotating rod 628 passes through the bottom of the sedimentation tower shell 3 and extends into the conical sedimentation hopper 619. Evenly spaced guide spiral blades 629 on its outer wall push the sediment downwards. Meanwhile, two sets of symmetrical, edge-mounted mounting arms 6210, fixedly installed at the top of the rotating rod 628 via mounting rings, have anti-clogging scraper blades 6211 on their outer walls that scrape away sediment adhering to the inner wall of the conical sedimentation hopper 619, ensuring unobstructed slag discharge. Furthermore, the two sets of hierarchical replacement semicircular doors 32, hinged and evenly spaced within the mounting semicircular holes on the outer wall of the sedimentation tower shell 3, can be opened when needed to facilitate maintenance and replacement of components inside the first mounting cavity 613 and the second mounting cavity 614. The control box 2 is fixedly mounted on the front of the support base frame 1 via a support frame and is used to control the operation of the entire sedimentation tower, including the start and stop of the motor 627 and the working status of the transfer pump 626, ensuring that all components coordinate and orderly complete the waste acid treatment work.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste acid precipitation tower, comprising a supporting bottom frame (1), characterized in that: The control box (2) is fixedly installed on the front of the support base frame (1) by a support frame. The top of the support base frame (1) is provided with an installation groove, and the sedimentation tower shell (3) is fixedly installed inside the installation groove. The top of the sedimentation tower shell (3) is fixedly installed with a fixed top cap (4). The top of the fixed top cap (4) is connected to a feed pipe (5). The outer wall of the sedimentation tower shell (3) is fixedly installed with a circular support frame (31). The outer wall of the sedimentation tower shell (3) is provided with equidistant and uniformly spaced installation semi-circular holes. The interior of the installation semi-circular holes is provided with a graded replacement semi-circular door (32) through a hinge. There are two sets in total. Decomposition processing component (6) is disposed inside and outside the sedimentation tower shell (3); The decomposition processing component (6) includes: The disassembly part (61) is located inside the supporting bottom frame (1); The cleaning and discharge section (62) is located inside and outside the supporting bottom frame (1), and is located below and outside the disassembly section (61).

2. The waste acid precipitation tower according to claim 1, characterized in that: The decomposition portion (61) includes: Umbrella-shaped uniform feeding hopper (611), which is fixedly installed on the inner wall of the fixed top cap (4) and located below the feed pipe (5); The umbrella-shaped uniform feeding hopper (611) has equal-distance dropping holes (612) on its bottom circumference. A first mounting cavity (613) is provided below the umbrella-shaped uniform feeding hopper (611), and a second mounting cavity (614) is provided below the first mounting cavity (613). A honeycomb plate is fixedly installed between the first mounting cavity (613) and the second mounting cavity (614).

3. The waste acid precipitation tower according to claim 2, characterized in that: A sedimentation chamber (615) is provided below the second mounting cavity (614). Lightweight polypropylene inclined tubes (616) are uniformly and evenly installed inside the first mounting cavity (613) and located at the top of the honeycomb plate. A second honeycomb plate is provided below the honeycomb plate and located between the sedimentation chamber (615) and the second mounting cavity (614). Density ceramic balls (617) are provided below the lightweight polypropylene inclined tubes (616) and are uniformly and evenly arranged at the top of the second honeycomb plate.

4. A waste acid precipitation tower according to claim 3, characterized in that: The outer wall of the second installation cavity (614) is connected to an extraction pipe (618), and the inner wall of the sedimentation cavity (615) is fixedly installed with a conical sedimentation hopper (619). The bottom of the conical sedimentation hopper (619) is connected to an inverted fan-shaped guide plate (6110), and the inverted fan-shaped guide plate (6110) extends to the bottom of the sedimentation tower shell (3).

5. A waste acid precipitation tower according to claim 1, characterized in that: The cleaning and discharge section (62) includes: Diagonal plates (621) are fixedly installed on the outer wall of the second mounting cavity (614) and located at the bottom of the honeycomb panel. There are four sets of these. A drug storage tank (625) is fixedly installed on the top of a circular support frame (31); An annular dosing tube (622) is fixedly installed inside the diagonal plate (621), a detector (623) is fixedly installed on the outer wall of the diagonal plate (621), and a spray head (624) is equidistantly connected to the outer wall of the annular dosing tube (622).

6. A waste acid precipitation tower according to claim 5, characterized in that: A replenishment pipe is connected to the top of the drug storage tank (625), and a delivery pump (626) is fixedly installed inside the drug storage tank (625). The connection port of the delivery pump (626) is connected to the annular dosing pipe (622) through a connecting pipe.

7. A waste acid precipitation tower according to claim 6, characterized in that: A motor (627) is installed below the annular dosing pipe (622), and the motor (627) is fixedly installed on the bottom of the inner wall of the supporting bottom frame (1) and installed below the sedimentation tower shell (3) through a protective sleeve. The output end of the motor (627) is provided with a rotating rod (628) through a coupling, and the rotating rod (628) passes through the bottom of the sedimentation tower shell (3) and extends into the interior of the conical sedimentation hopper (619).

8. A waste acid precipitation tower according to claim 7, characterized in that: The outer wall of the rotating rod (628) is uniformly fitted with guide spiral blades (629). The top of the rotating rod (628) is fixedly mounted with an edge mounting arm (6210) by a mounting ring. There are two sets of these arms, which are arranged symmetrically. The outer wall of the edge mounting arm (6210) is fitted with an anti-clogging scraper (6211).

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