Hot water preparation equipment for flocculating agent in aluminum oxide sedimentation process

By designing a combined cooling tower, hot water tank, and heating pump in alumina production, the temperature and quality of the water used for flocculant preparation were optimized, solving the operational failures of the hot water preparation equipment caused by scale, and improving the preparation effect of flocculant and the settling efficiency of red mud.

CN223607082UActive Publication Date: 2025-11-28GUANGXI LONGZHOU XINXIANG ECOLOGICAL ALUMINUM LNDUSTRY CO LTD
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Patent Information

Application Number
CN202423037641.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-11-28
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In the existing alumina production process, the hot water preparation equipment malfunctions and shuts down due to scale buildup, affecting the preparation of flocculants.

Method used

Design a hot water preparation device for flocculants in the alumina sedimentation process, including a cooling tower, a hot water tank, a water silo, and a heating pump. The secondary condensate from the evaporation is cooled to 30℃-45℃ by the cooling tower, then mixed with industrial hard water at 25℃, and delivered to the flocculant processing flow via the heating pump to optimize water quality and temperature and avoid the influence of calcium and magnesium ions.

Benefits of technology

The flocculant formulation was improved, the red mud settling efficiency in the alumina settling process was enhanced, and the equipment malfunction problem was solved.

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Abstract

The utility model relates to the technical field of aluminum oxide production, in particular to hot water preparation equipment for a flocculating agent in an aluminum oxide sedimentation process, which comprises a cooling tower, a hot water tank, a water sump and a heating pump. And conveying the water into a hot water tank, inputting industrial hard water with the temperature of 25 DEG C into the hot water tank through a water bin, and conveying the industrial hard water to a flocculant processing flow through a heating pump. The water quality of the water for preparing the flocculant is optimized, and the required temperature is reached, so that the prepared flocculant is free from the influence of ions such as calcium and magnesium, and has a good effect on the flocculant used in an anion process or a cation process; therefore, the problem that the preparation work of the flocculating agent is influenced by the equipment operation fault jump stop caused by the scale of the existing hot water preparation equipment is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to alumina production technical field especially relates to a hot water preparation equipment of alumina settlement process flocculant. BACKGROUND

[0002] The hot water temperature range for the preparation of flocculant required in the settlement process of alumina production process is 30-45 DEG C, and the turbidity and hardness of water are required to be high.

[0003] Currently, the alumina industry generally uses 95 DEG C flat disc washing water mixed with industrial production water at normal temperature for preparation of flocculant for the settlement process.

[0004] In the use process, scale is easy to be generated at impeller, pump shell, sealing gap and other parts of hot water delivery pump, which causes the equipment to stop running and affects the preparation of flocculant. UTILITY MODEL CONTENTS

[0005] The utility model discloses a hot water preparation equipment of alumina settlement process flocculant, which aims to solve the problem of the existing hot water preparation equipment caused by scale, which causes the equipment to stop running and affects the preparation of flocculant.

[0006] To achieve the above-mentioned purpose, the utility model provides a hot water preparation equipment of alumina settlement process flocculant, which comprises a cooling tower, a hot water tank, a water bin and a heating pump.

[0007] The output end of the cooling tower is connected with one end of the hot water tank, the output end of the water bin is connected with the other end of the hot water tank, and the output end of the hot water tank is connected with the heating pump.

[0008] The hot water tank comprises a tank body, a driving part one, a rotating frame and a closing plate, the driving part one is installed on one side of the tank body, the rotating frame is installed on the driving part one, and the closing plate is installed on the rotating frame.

[0009] The rotating frame comprises a connecting frame, a rotating rod and a driving part two, the connecting frame is fixedly connected with the output end of the driving part one, the rotating rod is fixedly connected with the connecting frame and rotatably connected with the tank body, the driving part two is fixedly connected with the connecting frame, and the output end of the driving part two is fixedly connected with the closing plate.

[0010] The hot water tank further comprises two guide rods and two limiting blocks, the two guide rods are fixedly connected with the closing plate respectively and slidably connected with the connecting frame respectively, and both penetrate through the connecting frame, and the two limiting blocks are fixedly connected with the two guide rods respectively and located on the side, away from the connecting frame, of the guide rod.

[0011] The groove body has two water inlets and a water outlet, the two water inlets are fixedly connected with the groove body and communicate with the groove body respectively, are located on one side of the groove body, and the water outlet is fixedly connected with the groove body, communicates with the groove body and is located on the side of the groove body away from the water inlets.

[0012] The utility model discloses an alumina settling process flocculant hot water configuration equipment, including cooling tower, hot water tank, water sump and heating pump, the output of cooling tower with one end of hot water tank is connected, the output of water sump with the other end of hot water tank is connected, the output of hot water tank with heating pump is connected. When the hot water configuration of flocculant preparation, the evaporation secondary condensate water of alumina production evaporation procedure is cooled to 30 DEG C to 45 DEG C through cooling tower, and the water is sent to the hot water tank, 25 DEG C industrial hard water is input to the hot water tank through the water sump, and is transported to flocculant processing flow through the heating pump. The utility model discloses through the water quality optimization of flocculant preparation water, reaches the temperature required simultaneously, makes flocculant configuration after calcium, magnesium and other ion influence, and the flocculant effect of anion process or cation process is good. The effect is better in industrial alumina production, and the settling efficiency of alumina settling process red mud is greatly improved, thereby solve the problem that the existing hot water configuration equipment causes equipment operation failure to stop and influence the preparation of flocculant. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description.

[0014] Fig. 1 It is a structure schematic view of the utility model discloses an alumina settling process flocculant hot water configuration equipment.

[0015] Fig. 2 It is the schematic view of hot water tank.

[0016] Fig. 3 It is the schematic view of another direction of hot water tank.

[0017] In the drawing: 1-cooling tower, 2-hot water tank, 3-water sump, 4-heating pump, 21-groove body, 22-driving part one, 23-rotating frame, 24-closing plate, 25-connecting frame, 26-rotating rod, 27-driving part two, 28-guide rod, 29-limiting block, 211-water inlet, 212-water outlet. DETAILED DESCRIPTION

[0018] Embodiments of the present application are described in detail below with reference to the accompanying drawings, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent 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 are intended to explain the present application, and cannot be understood as limiting the present application.

[0019] Please refer to Figs. 1-3 The utility model provides a kind of hot water preparation equipment of alumina settling process flocculant, including cooling tower 1, hot water tank 2, water sump 3 and heating pump 4;

[0020] The output end of the cooling tower 1 is connected to one end of the hot water tank 2, the output end of the water sump 3 is connected to the other end of the hot water tank 2, and the output end of the hot water tank 2 is connected to the heating pump 4.

[0021] In this embodiment, when preparing the flocculant, the evaporated secondary condensate water from the alumina production evaporation process is cooled to 30-45°C by the cooling tower 1, then the water is sent to the hot water tank 2, at the same time, 25°C industrial hard water is input into the hot water tank 2 through the water sump 3, and then it is delivered to the flocculant processing flow by the heating pump 4. The utility model optimizes the water quality for flocculant preparation, and at the same time reaches the required temperature, so that the flocculant is not affected by calcium, magnesium and other ions after preparation, and the effect of the flocculant used in either anionic process or cationic process is good. It has good effect in industrial alumina production, greatly improves the settling efficiency of red mud in the alumina settling process, and solves the problem of equipment operation failure caused by scale in the existing hot water preparation equipment, which affects the preparation of flocculant.

[0022] Further, the hot water tank 2 comprises a tank body 21, a driving member 22, a rotating frame 23 and a closure plate 24, the driving member 22 is installed on one side of the tank body 21, the rotating frame 23 is installed on the driving member 22, and the closure plate 24 is installed on the rotating frame 23.

[0023] In this embodiment, the driving member 22 is a driving motor with a rotating shaft, the tank body 21 is used to store water for flocculant processing, the driving member 22 can drive the rotating frame 23 to rotate, the rotating frame 23 can drive the closure plate 24 to move, and the closure plate 24 can open and close the tank body 21 to detect the water quality in the tank body 21.

[0024] Further, the rotating frame 23 comprises a connecting frame 25, a rotating rod 26 and a driving member two 27, the connecting frame 25 is fixedly connected with the output end of the driving member one 22, the rotating rod 26 is fixedly connected with the connecting frame 25 and is rotationally connected with the groove body 21, the driving member two 27 is fixedly connected with the connecting frame 25, and the output end of the driving member two 27 is fixedly connected with the closing plate 24.

[0025] In the embodiment, the connecting frame 25 provides mounting conditions for the driving member two 27, the rotating rod 26 provides rotating conditions for the connecting frame 25, the driving member two 27 can drive the closing plate 24 to move, and the driving member two 27 is an electric push rod.

[0026] Further, the hot water tank 2 further comprises two guide rods 28 and two limiting blocks 29, the two guide rods 28 are respectively fixedly connected with the closing plate 24 and are respectively slidably connected with the connecting frame 25 and penetrate through the connecting frame 25, and the two limiting blocks 29 are respectively fixedly connected with the two guide rods 28 and are located on the side, away from the connecting frame 25, of the guide rods 28.

[0027] In the embodiment, the two guide rods 28 provide mounting conditions for the two limiting blocks 29, the two guide rods 28 can guide the closing plate 24, improve the stability of the closing plate 24 when driven by the driving member two 27 to move, and the two limiting blocks 29 can limit the two guide rods 28 to prevent the two guide rods 28 from moving out of the preset range.

[0028] Further, the groove body 21 has two water inlets 211 and a water outlet 212, the two water inlets 211 are respectively fixedly connected with the groove body 21 and are respectively in communication with the groove body 21, are located on one side of the groove body 21, and the water outlet 212 is fixedly connected with the groove body 21, is in communication with the groove body 21, and is located on the side, away from the water inlets 211, of the groove body 21.

[0029] In the embodiment, the two water inlets 211 can connect the water storage chamber 3 and the cooling tower 1, and the water outlet 212 can guide the water in the groove body 21 into the heating pump 4.

[0030] The above only discloses one or more preferred embodiments of the present application, which cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned processes can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A hot water preparation device for flocculants in an alumina sedimentation process, characterized in that, it comprises a cooling tower, a hot water tank, a water tank and a heating pump; an output end of the cooling tower is connected with one end of the hot water tank, an output end of the water tank is connected with the other end of the hot water tank, and an output end of the hot water tank is connected with the heating pump.

2. The hot water preparation device for flocculants in an alumina sedimentation process according to claim 1, characterized in that, the hot water tank comprises a tank body, a driving member one, a rotating frame and a closing plate, the driving member one is installed on one side of the tank body, the rotating frame is installed on the driving member one, and the closing plate is installed on the rotating frame.

3. The hot water preparation device for flocculants in an alumina sedimentation process according to claim 2, characterized in that, the rotating frame comprises a connecting frame, a rotating rod and a driving member two, the connecting frame is fixedly connected with an output end of the driving member one, the rotating rod is fixedly connected with the connecting frame and rotatably connected with the tank body, the driving member two is fixedly connected with the connecting frame, and an output end of the driving member two is fixedly connected with the closing plate.

4. The hot water preparation device for flocculants in an alumina sedimentation process according to claim 3, characterized in that, the hot water tank further comprises two guide rods and two limiting blocks, the two guide rods are respectively fixedly connected with the closing plate and slidably connected with the connecting frame, and both penetrate through the connecting frame, the two limiting blocks are respectively fixedly connected with the two guide rods and located on a side of the guide rod away from the connecting frame.

5. The hot water preparation device for flocculants in an alumina sedimentation process according to claim 2, characterized in that, the tank body has two water inlets and a water outlet, the two water inlets are respectively fixedly connected with the tank body and in communication with the tank body, and both are located on one side of the tank body, and the water outlet is fixedly connected with the tank body and in communication with the tank body, and is located on a side of the tank body away from the water inlets.