Reaction mixing device for production of polyaluminum chloride (PAC)

Abstract

The utility model discloses a polyaluminum chloride (PAC) production reaction mixing device which comprises a base and a reaction kettle, one side of the upper surface of the base is fixedly connected with the reaction kettle, and one side of the upper surface of the base is fixedly connected with an absorption tower; and the reaction kettle is welded with the absorption tower through a pipeline. According to the PAC production reaction mixing device, through the arrangement of the base, the reaction kettle, the absorption tower and the grid baffle plate, when the PAC production reaction mixing device is used, after a user mixes the PAC in the reaction kettle, aluminum chloride and alkaline substances are subjected to hydrolysis reaction, chlorine is produced from AlCl3 + 3NaOH-> Al (OH) 3 + 3NaCl and Al (OH) 3 + HCl-> [Al (OH) Cl2], and the chlorine flows into the absorption tower through a pipeline connected to the reaction kettle, so that the production reaction of the PAC is realized. And a grid baffle is mounted in the absorption tower, so that the gas-liquid retention time is prolonged, the absorption efficiency is improved, the concentration of unabsorbed chlorine is reduced, the purpose of collectively recovering chlorine by a user is achieved, and meanwhile, the effect of protecting the human body safety of the user is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical engineering technical field especially relates to a polyaluminium chloride PAC production reaction mixing device. BACKGROUND

[0002] Polyaluminium chloride (Polyaluminium Chloride, PAC) is an important water treatment agent, and has wide application in modern industry and environmental governance, and PAC production process involves complex chemical reaction process, and the key lies in realizing efficient and stable product synthesis by accurately controlling raw material ratio, reaction condition and mixing technology, and the traditional production method has many limitations, such as uneven reaction, product quality fluctuation and high energy consumption and the like, therefore, advanced reaction mixing device becomes the key breakthrough for improving PAC production technology.

[0003] Through the search, Chinese patent publication (application) No.201821639101.3 discloses a kind of polyaluminium chloride PAC production reaction mixing device, the mixing box is equipped with heating electric wire on both sides, the device main casing is equipped with operating control box below, the mixing box is equipped with the residue filter screen below, the heating electric wire is equipped with temperature regulator on one side, and the temperature is adjusted by the setting, the above-mentioned patent can adjust temperature, but the leakage risk of untreated chlorine gas increases, threatens the professional health safety of operator, improves the probability of safety accident in production process, and the alkaline component is unevenly distributed, the product purity is difficult to stably control, the chemical performance index fluctuates greatly, and there may be residual impurities, therefore, it is necessary to design a kind of polyaluminium chloride PAC production reaction mixing device. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of polyaluminium chloride PAC production reaction mixing device, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of polyaluminium chloride PAC production reaction mixing device, including base and reaction kettle, the upper surface side of the base is fixedly connected with reaction kettle, the upper surface side of the base is fixedly connected with absorption tower;The reaction kettle is connected with absorption tower by pipeline welding, the inner surface side of the absorption tower is provided with grid baffle.

[0007] In order to have the purpose of detecting temperature, as a kind of polyaluminium chloride PAC production reaction mixing device of the utility model, the outer surface side of the reaction kettle is provided with air temperature table, and the inner surface of the reaction kettle is provided with stirring mechanism.

[0008] In order to make has the effect of stirring to chloride, as the utility model discloses a kind of polyaluminium chloride PAC production reaction mixing device, the upper surface of the base one side is fixedly connected with stirring shell, the outer surface of the stirring shell one side is provided with first motor, the output of the first motor is through the outer surface one side of stirring shell and extends to the inner wall one side of stirring shell, the output of the first motor is fixedly connected with stirrer, the outer surface one side of the stirring shell is provided with first feed inlet, the output of the stirring shell is connected with pipeline, the stirring shell is connected with reaction kettle by pipeline welding, the upper surface of the base one side is fixedly installed with first water pump.

[0009] In order to make has the function of transporting liquid, as the utility model discloses a kind of polyaluminium chloride PAC production reaction mixing device, the output of the first water pump is communicated with pipeline.

[0010] In order to make has the effect of stratification, as the utility model discloses a kind of polyaluminium chloride PAC production reaction mixing device, the upper surface of the base one side is fixedly connected with support leg, the upper surface one side of the support leg is fixedly installed with separation tank, the number of the separation tank is two and is connected by pipeline welding, the upper surface of the base one side is fixedly connected with second water pump, the separation tank is connected with reaction kettle by pipeline welding.

[0011] In order to make has the effect of treating impurities, as the utility model discloses a kind of polyaluminium chloride PAC production reaction mixing device, the output of the second water pump is communicated with pipeline, the inside of the separation tank is provided with multilayer activated carbon.

[0012] Compared with prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, through the setting of base, reaction kettle, absorption tower and baffle, when using, user completes mixing after polyaluminium chloride PAC in reaction kettle, aluminium chloride and alkaline substance hydrolysis reaction, AlCl3+3NaOH→Al (OH) 3+3NaCl, Al (OH) 3+HCl→[Al (OH) Cl2], and chlorine gas is produced, through the pipeline connected on reaction kettle, chlorine gas flows into absorption tower through pipeline, and the collection of chlorine gas is completed, baffle is installed in absorption tower, baffle increases gas-liquid residence time, improves absorption efficiency, reduces unabsorbed chlorine gas concentration, achieves the purpose that user recycles chlorine gas in bulk, and the effect of protecting user's body safety is achieved.

[0014] 2. The utility model discloses a separation tank, second water pump, stirring shell, first motor, agitator, first feed inlet and the setting of first water pump, when using, the user is accurate to measure the aluminium chloride, ensures that the ratio is accurate, supplies in liquid form, through the first feed inlet into the stirring shell, starts the first motor and drives the agitator to rotate, makes the aluminium chloride fully mix, and the alkaline compound is through the pipeline and enters the separation tank, and the separation tank number has two, the left separation tank contains acid material, makes reach neutralization ph value, through the pipeline liquid flows into the right separation tank, and the right separation tank contains multilayer active carbon, and the alkaline compound is treated with impurities, and the second water pump is started, and the alkaline compound is transported through the pipeline after treatment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view structure schematic diagram of the utility model embodiment;

[0016] Figure 2 It is the reaction kettle structure schematic diagram of the utility model embodiment;

[0017] Figure 3 It is the air temperature table structure schematic diagram of the utility model embodiment;

[0018] Figure 4 It is the separation tank structure schematic diagram of the utility model embodiment;

[0019] Figure 5 It is the stirring shell structure schematic diagram of the utility model embodiment;

[0020] Figure 6 It is the absorption tower structure schematic diagram of the utility model embodiment.

[0021] In the drawing: 1, base;2, reaction kettle;3, absorption tower;4, grid baffle;5, air temperature table;6, stirring shell;7, first motor;8, agitator;9, first feed inlet;10, first water pump;11, support leg;12, separation tank;13, second water pump. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. EMBODIMENT

[0023] As Figures 1-6As shown, a kind of polyaluminium chloride PAC production reaction mixing device, including base 1 and reaction kettle 2, the upper surface side of base 1 is fixedly connected with reaction kettle 2, the upper surface side of base 1 is fixedly connected with absorption tower 3;

[0024] In this embodiment, reaction kettle 2 is connected with absorption tower 3 by pipeline welding, and the inner surface side of absorption tower 3 is provided with baffle 4.

[0025] Specific use, after the polyaluminium chloride PAC in reaction kettle 2 is mixed, aluminium chloride and basic substance hydrolysis reaction, AlCl3+3NaOH→Al(OH)3+3NaCl, Al(OH)3+HCl→[Al(OH)Cl2], chlorine is produced, chlorine is flowed into absorption tower 3 through the pipeline connected with reaction kettle 2, and the collection of chlorine is completed, baffle 4 is installed in absorption tower 3, baffle 4 increases gas-liquid residence time, improves absorption efficiency, reduces the concentration of unabsorbed chlorine, achieves the purpose of user collective recovery of chlorine, and simultaneously protects the effect of user body safety.

[0026] In this embodiment, the outer surface side of reaction kettle 2 is provided with air temperature table 5, and the inner surface of reaction kettle 2 is provided with stirring mechanism.

[0027] Specific use, the air temperature table 5 arranged on the outer surface of reaction kettle 2 is used for monitoring the temperature of external environment, and the stirring mechanism is responsible for uniform mixing of reactants, so that the user adjusts the stirring rate according to the data, so as to ensure that the reaction is carried out in a safe and efficient temperature range, the stirring generates flow and shear force through rotary motion, promotes uniform mixing of reactants, and improves heat transfer and mass transfer efficiency.

[0028] In this embodiment, the upper surface side of base 1 is fixedly connected with stirring shell 6, the outer surface side of stirring shell 6 is provided with first motor 7, the output end of first motor 7 penetrates the outer surface side of stirring shell 6 and extends to the inner wall side of stirring shell 6, the output end of first motor 7 is fixedly connected with stirrer 8, the outer surface side of stirring shell 6 is provided with first feeding port 9, the output end of stirring shell 6 is connected with pipeline, and the stirring shell 6 is connected with reaction kettle 2 by pipeline welding, and the upper surface side of base 1 is fixedly installed with first water pump 10.

[0029] Specific use, enter into stirring shell 6 through first feeding port 9, start first motor 7 to drive stirrer 8 to rotate, so that aluminium chloride is fully mixed.

[0030] In this embodiment, the output end of first water pump 10 is communicated with the pipeline.

[0031] In practical use, after the first water pump 10 is started, the liquid is drawn in through the inlet and pressurized in the pump. Then it flows out from the output end and enters the pipeline. The connection between the output end and the pipeline ensures that the liquid can flow smoothly.

[0032] In this embodiment, a support leg 11 is fixedly connected to one side of the upper surface of the base 1, and a separation tank 12 is fixedly installed on one side of the upper surface of the support leg 11. There are two separation tanks 12 and they are connected by welding through pipes. A second water pump 13 is fixedly connected to one side of the upper surface of the base 1, and the separation tank 12 is connected to the reaction vessel 2 by welding through pipes.

[0033] In practical use, the alkaline compound is introduced into the separation tank 12 through a pipe. There are two separation tanks 12. The left separation tank 12 contains acidic substances to neutralize the pH value. The liquid flows into the right separation tank 12 through the pipe. The right separation tank 12 contains multiple layers of activated carbon to treat the alkaline compound for impurities.

[0034] In this embodiment, the output end of the second water pump 13 is connected to the pipeline, and the interior of the separation tank 12 is provided with multiple layers of activated carbon.

[0035] In practical use, the output end of the second water pump 13 is connected to the pipeline to effectively transport the liquid to the separation tank 12. Inside the separation tank 12, the multi-layer activated carbon utilizes its superior adsorption properties to effectively remove impurities and pollutants from the liquid, thereby achieving the purpose of liquid purification.

[0036] Working principle: In use, the user accurately measures aluminum chloride to ensure accurate proportions. It is supplied in liquid form and enters the mixing shell 6 through the first inlet 9. The first motor 7 is started, driving the stirrer 8 to rotate, ensuring thorough mixing of the aluminum chloride. The alkaline compound is then piped into two separation tanks 12. The left separation tank 12 contains acidic substances to neutralize the pH value. The liquid then flows through a pipe into the right separation tank 12, which contains multiple layers of activated carbon to remove impurities from the alkaline compound. The second water pump 13 is started, and the treated alkaline compound is transported through a pipeline. After the user mixes the polyaluminum chloride (PAC) in reactor 2, the aluminum chloride reacts with the alkaline substance through hydrolysis: AlCl3 + 3NaOH → Al(OH)3 + 3NaCl, Al(OH)3 + HCl → [Al(OH)Cl2], producing chlorine gas. This chlorine gas flows through a pipe connected to reactor 2 into absorption tower 3 for collection. Absorption tower 3 is equipped with baffles 4, which increase the gas-liquid residence time, improve absorption efficiency, and reduce the concentration of unabsorbed chlorine gas, achieving the user's goal of collectively recovering chlorine gas while protecting the user's safety.

[0037] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A reaction mixing device for the production of polyaluminum chloride (PAC), comprising a base (1) and a reaction vessel (2), characterized in that: The upper surface of the base (1) is fixedly connected to the reactor (2), and the upper surface of the base (1) is fixedly connected to the absorption tower (3); the reactor (2) and the absorption tower (3) are connected by welding through pipes, and the inner surface of the absorption tower (3) is provided with a baffle plate (4).

2. The polyaluminum chloride (PAC) production reaction mixing device according to claim 1, characterized in that: A thermometer (5) is provided on one side of the outer surface of the reactor (2), and a stirring mechanism is provided on the inner surface of the reactor (2).

3. The polyaluminum chloride (PAC) production reaction mixing device according to claim 1, characterized in that: A stirring shell (6) is fixedly connected to one side of the upper surface of the base (1). A first motor (7) is provided on one side of the outer surface of the stirring shell (6). The output end of the first motor (7) passes through one side of the outer surface of the stirring shell (6) and extends to one side of the inner wall of the stirring shell (6). A stirrer (8) is fixedly connected to the output end of the first motor (7). A first feed inlet (9) is provided on one side of the outer surface of the stirring shell (6). A pipe is connected to the output end of the stirring shell (6). The stirring shell (6) and the reaction vessel (2) are welded together through the pipe. A first water pump (10) is fixedly installed on one side of the upper surface of the base (1).

4. The polyaluminum chloride (PAC) production reaction mixing device according to claim 3, characterized in that: The output end of the first water pump (10) is connected to the pipeline.

5. The polyaluminum chloride (PAC) production reaction mixing device according to claim 1, characterized in that: A support leg (11) is fixedly connected to one side of the upper surface of the base (1), and a separation tank (12) is fixedly installed on one side of the upper surface of the support leg (11). There are two separation tanks (12) and they are connected by welding through pipes. A second water pump (13) is fixedly connected to one side of the upper surface of the base (1). The separation tank (12) and the reaction vessel (2) are connected by welding through pipes.

6. The polyaluminum chloride (PAC) production reaction mixing device according to claim 5, characterized in that: The output end of the second water pump (13) is connected to the pipeline, and the interior of the separation tank (12) is provided with multiple layers of activated carbon.

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