Improved calcium hypochlorite production device

Abstract

The utility model relates to an improved calcium hypochlorite production device which comprises a reaction kettle, a stirrer is arranged in the reaction kettle, a feeding pipe penetrating through a top cover is arranged on the top cover of the reaction kettle, and the improved calcium hypochlorite production device further comprises a distributor; the distributor is in a closed tubular shape, and a plurality of through-hole-shaped distribution holes are formed in the side wall of the distributor; the distributor is arranged in the reaction kettle, is positioned below the stirrer and is communicated with the inner end of the feeding pipe; the outer end of the feeding pipe is communicated with a chlorine pipeline and a raw material pipeline at the same time. According to the utility model, by arranging the distributor, the distribution uniformity of chlorine in the reaction kettle can be effectively improved, so that the chlorine can react more fully in the reaction kettle, the waste of raw materials is avoided, the product yield is improved, meanwhile, the harm caused by chlorine leakage can be avoided, and the potential safety hazard is eliminated; and favorable conditions are created for smooth production.

Description

Technical Field

[0001] The utility model relates to a chemical device, in particular to a calcium hypochlorite production device that can improve the product yield, specifically an improved calcium hypochlorite production device. Background Art

[0002] The production process of calcium hypochlorite includes sodium method and calcium method processes. Whether it is the sodium method process or the calcium method process, chlorine gas is used as the main raw material to participate in the reaction. Chlorine gas is a highly toxic asphyxiating gas with a strong pungent odor. It can invade the human body through the respiratory tract and dissolve in the moisture contained in the mucous membrane, causing damage to the upper respiratory tract mucous membrane, leading to respiratory disorders and causing damage to body tissues. Therefore, if chlorine gas cannot completely react during the calcium hypochlorite reaction process, it will not only affect the product yield, cause waste of raw materials, but also pose a risk of chlorine gas leakage, endangering the safety of personnel.

[0003] Currently, the traditional calcium hypochlorite production process is generally an intermittent reaction process. During production, chlorine gas is directly introduced through a pipeline below the reaction liquid level in the reaction kettle, and then through actions such as a stirrer, it is mixed with the materials in the reaction kettle to generate calcium hypochlorite. However, due to the relatively concentrated input of chlorine gas, it is easy to cause uneven distribution of chlorine gas, resulting in incomplete reaction of chlorine gas. As a result, not only will the processing load of the chlorine gas treatment system be increased, but there is also a risk of chlorine gas leakage. Thus, it will not only cause waste of raw materials but also pose a safety hazard, which is not conducive to the normal progress of production. Moreover, according to the calcium hypochlorite reaction process, different calcium hypochlorite crystal forms will be generated at different chlorine gas concentrations and reaction stages. Therefore, uneven distribution of chlorine gas will result in differences in the final product, affecting the quality of calcium hypochlorite products.

[0004] Therefore, it is necessary to make improvements to better meet the production requirements. Summary of the Utility Model

[0005] The purpose of the utility model is to address the deficiencies of the existing technology and provide an improved calcium hypochlorite production device, which can effectively improve the uniformity of chlorine gas distribution in the reaction kettle, enhance the reaction efficiency of chlorine gas, reduce waste of raw materials, and eliminate potential safety hazards.

[0006] The technical solution of the utility model is as follows:

[0007] An improved calcium hypochlorite production device includes a reaction kettle, which is provided with a stirrer, and its top cover is provided with a feed pipe passing through the top cover. It also includes a distributor; the distributor is a closed tubular shape, and its side wall is provided with a number of through-hole-shaped distribution holes; the distributor is arranged inside the reaction kettle, and is located below the stirrer and is connected to the inner end of the feed pipe; the outer end of the feed pipe is simultaneously connected to a chlorine gas pipeline and a raw material pipeline.

[0008] Further, the distributor is semi-circular; the distribution holes are arranged on the top surface of the distributor and are evenly distributed; the feed pipe is connected to the middle of the distributor.

[0009] Further, the aperture of the distribution holes is 0.1 - 0.2D, where D is the pipe diameter of the distributor; the spacing between the distribution holes is 5° - 10° of the central angle of the arc where the distribution holes are located; the distribution holes are arranged in a double-row parallel pattern.

[0010] Further, the aperture of the distribution holes is 0.3 - 0.5D; D is the pipe diameter of the distributor; the spacing between the distribution holes is 5° - 10° of the central angle of the arc where the distribution holes are located; the distribution holes are arranged in a single-row pattern.

[0011] Further, there are two distributors arranged opposite to each other; there are two feed pipes corresponding to and connected to the distributors.

[0012] Further, the distributor is close to the bottom of the reaction kettle.

[0013] Further, a check valve and a manual valve are connected in series on the chlorine gas pipeline; a check valve and a ball valve are connected in series on the raw material pipeline.

[0014] Further, the manual valve is two manual valves connected in series with each other.

[0015] Further, the stirrer includes a stirring paddle and a stirring shaft; the stirring paddle is of a blade type or an anchor type; the stirring shaft is installed through the top cover, with its lower end connected to the stirring paddle and its upper end connected to the motor; the motor is installed on the top cover.

[0016] Advantages of the present utility model:

[0017] The present utility model is reasonably designed, simple in structure and convenient to use. By setting the distributor, it can effectively ensure that chlorine gas reacts more fully in the reaction kettle, avoid waste of raw materials, improve the product yield, and at the same time avoid the harm caused by chlorine gas leakage, eliminate potential safety hazards, and create favorable conditions for the smooth progress of production. Description of the drawings

[0018] Figure 1 is the structural schematic diagram of the present utility model.

[0019] Figure 2 is the structural schematic diagram of the distributor in Embodiment 1.

[0020] Figure 3 is the structural schematic diagram of the distributor in Embodiment 2.

[0021] Among them, 1 - check valve; 2 - ball valve; 3 - raw material pipeline; 4 - chlorine pipeline; 5 - manual valve; 6 - motor; 7 - stirring shaft; 8 - reaction kettle; 9 - feed pipe; 10 - stirring paddle; 11 - distributor; 12 - distribution hole. Specific embodiments

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Embodiment 1 is as Figure 1 and 2 shown.

[0024] An improved calcium hypochlorite production device includes a reaction kettle 8 and a distributor 11, etc.

[0025] The reaction kettle 8 is a closed cylindrical structure, which is provided with a stirrer inside, and its top cover is provided with a feed pipe 9 passing through the top cover. The outer end of the feed pipe 9 is simultaneously connected to the chlorine pipeline 4 and the raw material pipeline 3, so as to simultaneously introduce chlorine and raw materials into the reaction kettle 8, which can avoid the blockage of the chlorine pipeline caused by the deposition of solid raw materials.

[0026] The stirrer includes a stirring paddle 10 and a stirring shaft 7. The stirring paddle 10 can be selected as a blade type or an anchor type according to the reaction conditions. The stirring shaft 7 is a straight rod shape, which is installed through the top cover, its lower end is connected to the stirring paddle 10, and its upper end is connected to the motor 6. The motor 6 is installed on the top cover, and can drive the stirring paddle to rotate by driving the stirring shaft, so as to stir the materials in the reaction kettle and promote their uniform mixing.

[0027] The distributor 11 is a semi-circular closed tube, and a plurality of through-hole-shaped distribution holes 12 are provided on its top surface. The distributor 11 is arranged inside the reaction kettle 8 and is located below the stirrer. The inner end of the feed pipe 9 is connected to the middle position of the distributor 11 and is communicated with each other. Thus, the mixture of chlorine and raw materials can be introduced into the distributor through the feed pipe, and then flow out from the distribution holes into the reaction kettle, so that the distribution of chlorine in the reaction kettle is more uniform. Preferably, the distributor 11 is close to the bottom of the reaction kettle 8, which is beneficial to the uniform distribution of the mixture of raw materials and chlorine in the reaction kettle.

[0028] The aperture of the distribution hole 12 is 0.1 - 0.2D (D is the pipe diameter of the distributor), and the distance between adjacent distribution holes 12 is 5° - 10° of the central angle of the arc where the distribution hole is located. At the same time, the distribution holes 12 are arranged in a double-row parallel manner, which can meet the production requirements using sodium hydroxide as the raw material.

[0029] There are two distributors 11, which are arranged oppositely. Correspondingly, there are two feed pipes 9, which are correspondingly connected to the distributors 11. Thus, the introduction speed of the raw material and chlorine mixture can be effectively increased, and the uniformity of the flow into the reaction kettle after passing through the distributors can be improved.

[0030] Furthermore, a check valve 1 and a ball valve 2 are connected in series on the raw material pipeline 3, which can prevent backflow and facilitate the on-off control of the pipeline. At the same time, a check valve 1 and a manual valve 5 are connected in series on the chlorine pipeline 4, and the manual valve 5 is a double manual valve connected in series with each other. Thus, not only can the backflow of chlorine be prevented, but also the chlorine can be better isolated when the pipeline is shut off to ensure safety.

[0031] Embodiment 2, as Figure 1 and 3 shown.

[0032] The structure of this Embodiment 2 is basically the same as that of Embodiment 1. The main difference is that: the aperture of the distribution holes 12 is 0.3 - 0.5D (D is the diameter of the distributor), and the distribution holes 12 are arranged in a single row. Thus, the production requirements of calcium hydroxide with the raw material in a suspension state can be met, and the distribution holes can be prevented from being blocked.

[0033] By setting the distributor, the utility model can effectively improve the uniformity of the distribution of chlorine in the reaction kettle. Furthermore, it ensures that chlorine reacts more fully in the reaction kettle, avoids waste of raw materials, improves the product yield, and at the same time can also avoid the harm caused by chlorine leakage, eliminates potential safety hazards, and creates favorable conditions for the smooth progress of production.

[0034] Parts not involved in the utility model are the same as or can be implemented by using the prior art.

Claims

1. An improved calcium hypochlorite production device, comprising a reactor, a stirrer is provided in the reactor, a feed pipe penetrating the top cover is provided on the top cover, and the characteristics are: It also includes a distributor; the distributor is a closed tube with a plurality of through-hole-shaped distribution holes on its side wall; the distributor is arranged in the reactor and below the agitator, and is connected with the inner end of the feed pipe; the outer end of the feed pipe is connected with the chlorine pipeline and the raw material pipeline at the same time.

2. The improved calcium hypochlorite production device according to claim 1, characterized in that: The distributor is semicircular; the distribution holes are arranged on the top surface of the distributor and are evenly distributed; the feed pipe is connected to the middle of the distributor.

3. The improved calcium hypochlorite production device according to claim 2, characterized in that: The aperture of the distribution holes is 0.1-0.2D, where D is the tube diameter of the distributor; the spacing of the distribution holes is 5°-10°, the central angle of the arc where the distribution holes are located; and the distribution holes are arranged in double rows parallel to each other.

4. The improved calcium hypochlorite production device according to claim 2, characterized in that: The aperture of the distribution holes is 0.3-0.5D; D is the tube diameter of the distributor; the spacing of the distribution holes is 5°-10°, the central angle of the arc where the distribution holes are located; the distribution holes are arranged in a single row.

5. The improved calcium hypochlorite production device according to claim 1, characterized in that: There are two distributors which are arranged opposite to each other; there are two feed pipes which are connected to the distributors accordingly.

6. The improved calcium hypochlorite production device according to claim 1, characterized in that: The distributor is located near the bottom of the reactor.

7. The improved calcium hypochlorite production device according to claim 1, characterized in that: The chlorine pipeline is provided with a check valve and a manual valve connected in series; the raw material pipeline is provided with a check valve and a ball valve connected in series.

8. The improved calcium hypochlorite production device according to claim 7, characterized in that: The manual valves are double manual valves connected in series.

9. The improved calcium hypochlorite production device according to claim 1, characterized in that: The agitator comprises an agitator paddle and an agitator shaft; the agitator paddle is of a blade type or an anchor type; the agitator shaft is installed through the top cover, the lower end of the agitator shaft is connected to the agitator paddle, and the upper end of the agitator shaft is connected to the motor; the motor is installed on the top cover.

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