Acid feeding device for acid-dissolving kettle

By designing an automated acid addition device, the problems of inaccurate acid addition and safety hazards in the acid dissolution vessel were solved, realizing quantitative acid addition and mixing of multiple acids, improving production efficiency and reducing equipment maintenance costs.

CN224485920UActive Publication Date: 2026-07-14SHANDONG YUXIAO NONFERROUS NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YUXIAO NONFERROUS NEW MATERIAL CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing acid dissolution kettles have difficulty ensuring the accuracy of acid addition during the acid addition process, posing safety hazards and equipment corrosion problems.

Method used

An acid-adding device including a lifting mechanism and an acid-adding mechanism was designed. A PLC controller is used to control the metering pump to achieve quantitative acid addition, avoiding manual contact with acid liquid and acid mist. Through the cooperation of the lifting plate and the rotating plate, the automatic mixing and quantitative addition of multiple acids can be achieved.

Benefits of technology

It improves the accuracy of acid addition and production efficiency, while reducing harm to workers and equipment maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224485920U_ABST
    Figure CN224485920U_ABST
Patent Text Reader

Abstract

The utility model belongs to acid -dissolving cauldron technical field, concretely relates to a kind of acid -dissolving cauldron's acid adding device, including main body, the main body upper portion is provided with feed inlet, the main body side is provided with lifting mechanism, the lifting mechanism is all provided with acid adding mechanism, the main body bottom center position is provided with discharge port, the edge of the main body bottom is provided with four support legs.The utility model has the beneficial effect that the acid -dissolving cauldron's acid adding device can quantitatively add acid, compared with artificial acidification, the accuracy of acid addition is guaranteed, and multiple acids can be added simultaneously, when mixed acid is required in acid-dissolving reaction, manual pre-proportioning mixed acid is not required, production efficiency is improved, and the accuracy of mixed acid proportioning is also improved.The acid -dissolving cauldron's acid adding device can automatically add acid by PLC controller control, without staff contacting acid liquor and acid mist, the harm to staff is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of acid dissolution vessel technology, specifically relating to an acid adding device for an acid dissolution vessel. Background Technology

[0002] Acid dissolution kettles are mainly used for acid dissolution reactions, which involve dissolving solid materials in an acidic solution. Different types of acids, or even a mixture of multiple acids, are required to dissolve different substances, such as metals and ores.

[0003] In acid dissolution reactors, acid is usually added manually during the acid dissolution reaction. However, manual addition makes it difficult to ensure the accuracy of the amount of acid added, which may lead to unstable reaction conditions, affecting the efficiency and results of the reaction. At the same time, acid solutions (such as sulfuric acid, hydrochloric acid, nitric acid, etc.) are highly corrosive. If splashed onto the skin or eyes, they can cause severe chemical burns. Furthermore, acid fumes (such as hydrochloric acid fumes and nitric acid fumes) are highly irritating. Inhalation can cause inflammation of the respiratory mucosa, leading to symptoms such as coughing, wheezing, and difficulty breathing. In addition, manual addition of acid is prone to acid leakage, which can cause equipment corrosion and require frequent repairs or replacement of equipment parts, increasing equipment maintenance costs. Utility Model Content

[0004] To address the aforementioned problems, this invention provides an acid addition device for an acid dissolving vessel.

[0005] This utility model relates to an acid addition device for an acid dissolving kettle, comprising a main body, an inlet provided on the top of the main body, a lifting mechanism provided on the side of the main body, an acid addition mechanism provided on each of the lifting mechanisms, an outlet provided at the center of the bottom of the main body, and four support legs provided at the edge of the bottom of the main body.

[0006] Preferably, the lifting mechanism includes four lifting components, which are evenly distributed on the side of the main body. Each of the four lifting components includes two L-shaped support frames. The ends of the long rods of the two L-shaped support frames are fixedly connected to the top of the main body. Two lead screws are rotatably connected to the bottom of the short rods of the two L-shaped support frames. Lifting plates are provided on the two lead screws, and the lifting plates are threadedly connected to the two lead screws.

[0007] Preferably, the lifting plate has two support plates fixedly connected to the edge of the bottom of the main body on one side, and the two lead screws are rotatably connected to the upper side of the two support plates away from the main body. A motor is fixedly connected to the lower side of each of the two support plates, and the output shafts of the two motors pass through the two support plates and are fixedly connected to the two lead screws.

[0008] Preferably, the acid-adding mechanism includes four rotating components, each of which includes a rotating plate. The four rotating plates are rotatably connected to the interior of four lifting plates on the side away from the main body, and each of the four rotating plates is provided with an acid-adding component.

[0009] Preferably, each of the four rotating plates is fixedly connected to an internal gear ring, and each of the four internal gear rings is meshed with an external gear. Each of the four external gears is provided with a second motor. Each of the four second motors is fixedly connected to the bottom of the main body through an L-shaped support frame. The output shafts of the four second motors pass through the four L-shaped support frames and are fixedly connected to the four external gears.

[0010] Preferably, each of the four acid-adding components includes a sliding plate, and the four sliding plates are slidably connected to the interior of the four rotating plates on the side away from the main body. Each of the four sliding plates on the side away from the main body is detachably connected to an acid storage tank. Each of the four acid storage tanks is connected to a delivery pipe below it. Each of the four delivery pipes is equipped with a metering pump. Each of the four acid storage tanks is detachably connected to a fixing ring on the outer side above it.

[0011] Preferably, each of the four fixed rings is fixedly connected to a linear telescopic device on the side closest to the main body, and each of the four linear telescopic devices is fixedly connected to a supporting vertical plate on the side away from the fixed rings. The lower parts of the four supporting vertical plates are respectively fixedly connected to the side of the four rotating plates closest to the main body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Compared with existing technologies, the acid addition device of the acid dissolving kettle of this invention...

[0014] (1) The acid addition device of the acid dissolution kettle can add acid quantitatively. Compared with manual acid addition, it ensures the accuracy of the amount of acid added and can add multiple acids at the same time. When the acid dissolution reaction requires mixed acid, there is no need to manually mix the mixed acid in advance according to the ratio, which improves the production efficiency and the accuracy of mixed acid preparation.

[0015] (2) The acid addition device of the acid dissolving kettle is controlled by a PLC controller to automatically add acid, eliminating the need for workers to come into contact with acid liquid and acid mist, thus reducing the harm to workers;

[0016] (3) The acid addition device of the acid dissolving vessel controls the metering pump below the acid storage tank to move to the top of the feed inlet, and then starts the metering pump to add acid. The acid liquid falls vertically into the acid dissolving vessel directly, avoiding the problem of acid liquid leakage to the equipment surface and causing corrosion caused by manual pouring of acid liquid, thus reducing the maintenance cost of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0018] Figure 1 This is a schematic diagram of the acid addition device for the acid dissolving vessel provided in Example 1;

[0019] Figure 2 This is a bottom structural diagram of the acid addition device for the acid dissolving vessel provided in Example 1;

[0020] Figure 3 A front view of the acid addition device for the acid dissolving vessel provided in Example 1;

[0021] Figure 4 A top view of the acid addition device for the acid dissolving vessel provided in Example 1;

[0022] Figure 5 The lower view of the acid addition device of the acid dissolving vessel provided in Example 1;

[0023] Figure 6 A schematic diagram of the lifting plate provided in Example 1;

[0024] Figure 7 A schematic diagram of the rotating plate provided in Example 1;

[0025] Figure 8 This is a schematic diagram of the sliding plate provided in Example 1.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Main body, 2. Feed inlet, 3. Discharge outlet, 4. Support leg, 5. L-shaped support frame one, 6. Screw, 7. Lifting plate, 8. Supporting horizontal plate, 9. Motor one, 10. Rotating plate, 11. Internal gear ring gear, 12. External gear, 13. Motor two, 14. L-shaped support frame two, 15. Sliding plate, 16. Acid storage tank, 17. Fixed ring, 18. Linear telescopic device, 19. Supporting vertical plate, 20. Metering pump. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] Example 1

[0031] The following is combined with Figures 1-8The present invention will be further described as follows: Figures 1-8 The acid addition device of the acid dissolving kettle shown includes a main body 1, a feed inlet 2 is provided on the top of the main body 1, a lifting mechanism is provided on the side of the main body 1, an acid addition mechanism is provided on the lifting mechanism, a discharge outlet 3 is provided at the center of the bottom of the main body 1, and four support legs 4 are provided on the bottom edge of the main body 1.

[0032] like Figures 1-8 As shown, the lifting mechanism includes four lifting components, which are evenly distributed on the side of the main body 1. Each of the four lifting components includes two L-shaped support frames 5. The ends of the long rods of the two L-shaped support frames 5 are fixedly connected to the top of the main body 1. Two lead screws 6 are rotatably connected to the bottom of the short rods of the two L-shaped support frames 5. Lifting plates 7 are provided on the two lead screws 6, and the lifting plates 7 are threadedly connected to the two lead screws 6.

[0033] like Figures 1-8 As shown, two support plates 8 are provided below the lifting plate 7, one side of which is fixedly connected to the bottom edge of the main body 1. The two lead screws 6 are respectively rotatably connected to the upper side of the two support plates 8 away from the main body 1. Motors 9 are fixedly connected to the lower side of the two support plates 8. The output shafts of the two motors 9 pass through the two support plates 8 and are fixedly connected to the two lead screws 6.

[0034] like Figures 1-8 As shown, the acid-adding mechanism includes four rotating components, each of which includes a rotating plate 10. The four rotating plates 10 are rotatably connected to the interior of the four lifting plates 7 on the side away from the main body 1, and each of the four rotating plates 10 is equipped with an acid-adding component.

[0035] like Figures 1-8 As shown, internal gear ring gears 11 are fixedly connected to the bottom of each of the four rotating plates 10. External gears 12 are meshed inside each of the four internal gear ring gears 11. Motors 13 are installed below each of the four external gears 12. The four motors 13 are fixedly connected to the bottom of the main body 1 through L-shaped support frames 14. The output shafts of the four motors 13 pass through the four L-shaped support frames 14 and are fixedly connected to the four external gears 12.

[0036] like Figures 1-8 As shown, each of the four acid-adding components includes a sliding plate 15. The four sliding plates 15 are slidably connected to the interior of the four rotating plates 10 on the side away from the main body 1. Each of the four sliding plates 15 on the side away from the main body 1 can be detachably connected to an acid storage tank 16. Each of the four acid storage tanks 16 is connected to a delivery pipe below it. Each of the four delivery pipes is equipped with a metering pump 20. Each of the four acid storage tanks 16 is detachably connected to a fixing ring 17 on the outer side above it.

[0037] like Figures 1-8As shown, each of the four fixed rings 17 is fixedly connected to a linear telescopic device 18 on the side closest to the main body 1, and each of the four linear telescopic devices 18 is fixedly connected to a supporting vertical plate 19 on the side away from the fixed rings 17. The lower parts of the four supporting vertical plates 19 are respectively fixedly connected to the side of the four rotating plates 10 closest to the main body 1.

[0038] In this embodiment, the linear telescopic device 18 is a cylinder, hydraulic cylinder, or electric telescopic rod; the eight motors 19, the four motors 213, the four linear telescopic devices 18, and the four metering pumps 20 are all externally connected to the same PLC controller.

[0039] Working principle:

[0040] When adding acid to the acid dissolution vessel, the operator opens the inlet 2, starts two motors 9, and rotates two lead screws 6, which drive the lifting plate 7 to move upward to the top. Then, the operator starts motor 13, which drives the external gear 12, the internal gear ring gear 11, and the rotating plate 10 to rotate in sequence. The acid storage tank 16 moves to the side close to the main body 1. The linear telescopic device 18 is then activated, and its push rod pushes out through the fixed ring 17, driving the acid storage tank 16 and the sliding plate 15 out until the metering pump 20 is above the inlet 2. The PLC controller sends a signal to the metering pump 20, and the acid in the acid storage tank 16 is quantitatively added to the acid dissolution vessel.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An acid-adding device for an acid dissolving vessel, comprising a main body (1), characterized in that, The main body (1) is provided with a feed inlet (2) on the top, a lifting mechanism is provided on the side of the main body (1), an acid adding mechanism is provided on the lifting mechanism, a discharge port (3) is provided at the center of the bottom of the main body (1), and four support legs (4) are provided on the bottom edge of the main body (1). The lifting mechanism includes four lifting components, which are evenly distributed on the side of the main body (1). Each of the four lifting components includes two L-shaped support frames (5). The ends of the long rods of the two L-shaped support frames (5) are fixedly connected to the top of the main body (1). Two lead screws (6) are rotatably connected to the bottom of the short rods of the two L-shaped support frames (5). Lifting plates (7) are provided on the two lead screws (6). The lifting plates (7) are threadedly connected to the two lead screws (6). The lifting plate (7) has two supporting horizontal plates (8) below it, one side of which is fixedly connected to the bottom edge of the main body (1). The two screw rods (6) are respectively rotatably connected to the upper side of the two supporting horizontal plates (8) away from the main body (1). The two supporting horizontal plates (8) are each fixedly connected to a motor (9). The output shafts of the two motors (9) pass through the two supporting horizontal plates (8) and are fixedly connected to the two screw rods (6). The acid-adding mechanism includes four rotating components, each of which includes a rotating plate (10). The four rotating plates (10) are rotatably connected to the interior of the four lifting plates (7) on the side away from the main body (1). Each of the four rotating plates (10) is provided with an acid-adding component. The bottom of each of the four rotating plates (10) is fixedly connected with an internal gear ring (11), and the interior of each of the four internal gear ring (11) is meshed with an external gear (12). Each of the four external gears (12) is provided with a motor (13) below it. Each of the four motors (13) is fixedly connected to the bottom of the main body (1) through an L-shaped support frame (14). The output shafts of the four motors (13) pass through the four L-shaped support frames (14) and are fixedly connected to the four external gears (12). Each of the four acid-adding components includes a sliding plate (15). The four sliding plates (15) are slidably connected to the interior of the four rotating plates (10) on the side away from the main body (1). Each of the four sliding plates (15) on the side away from the main body (1) is detachably connected to an acid storage tank (16). Each of the four acid storage tanks (16) is connected to a conveying pipe below it. Each of the four conveying pipes is equipped with a metering pump (20). Each of the four acid storage tanks (16) is detachably connected to a fixing ring (17) on the outer side above it.

2. The acid addition device for the acid dissolving vessel according to claim 1, characterized in that, Each of the four fixed rings (17) is fixedly connected to a linear telescopic device (18) on the side closest to the main body (1), and each of the four linear telescopic devices (18) is fixedly connected to a supporting vertical plate (19) on the side away from the fixed rings (17). The bottom of each of the four supporting vertical plates (19) is fixedly connected to the side of each of the four rotating plates (10) close to the main body (1).