Mixing reactor

Abstract

The utility model discloses a mixing reactor, which relates to the technical field of chlorine dioxide preparation and comprises a mixing reactor body, the mixing reactor body comprises a jet mixer and a reaction chamber, the jet mixer is arranged at the inlet end of the mixing reactor body, and the reaction chamber is arranged at the outlet end of the mixing reactor body. An inlet of the jet mixer is connected with a first feed port and a jet feed port, the jet feed port sprays materials in the tangential direction of the jet mixer, and an outlet of the jet mixer is connected with the reaction chamber; according to the utility model, the jet mixing of various materials is realized, and the mixing effect is improved, so that the full degree of material reaction is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of chlorine dioxide preparation, and particularly relates to a mixing reactor. Background Art

[0002] Chlorine dioxide disinfectant is a highly efficient disinfectant and sterilizing agent recognized internationally. It can kill all microorganisms, including bacterial propagules, bacterial spores, fungi, mycobacteria, and viruses, and these bacteria will not develop drug resistance. A common method for preparing chlorine dioxide is to add sodium chlorate and acid to a reactor to react and produce chlorine dioxide; an air inlet pipe is also provided at the input end of the reactor, and the output end of the reactor is connected to a water injector. A negative pressure is formed in the reactor through the action of the water injector, and air is sucked into the reactor from the air inlet pipe. The flowing air in the reactor takes out the chlorine dioxide gas and mixes it with water to form a disinfectant solution. After the raw materials in the generator produce chlorine dioxide, there are still some by-products and unreacted raw materials (sodium chlorate, sulfuric acid, chlorite, sodium sulfate).

[0003] Currently, there are two methods for treating by-products in the generators for preparing chlorine dioxide: one is to directly add the by-products without treatment together with chlorine dioxide into the water injector of the generator to form a disinfectant solution and then add it to tap water, which is likely to cause the exceeding standards of chlorate and chlorite in tap water and the decrease of the pH value of tap water, failing to meet the requirements of the national drinking water quality standard; the other is to configure a by-product separation device in the generator to separate the by-products for centralized treatment.

[0004] In the prior art, a reactor may be used in the device for treating the by-products of a chlorine dioxide generator. By introducing a by-product solution and a reagent into the reactor, the by-products are treated through a chemical reaction. However, there are problems of uneven mixing of various material solutions in the existing reactor. When the by-product solution and the reagent react, due to uneven mixing and slow reaction speed, the treatment effect of the by-products is not good. Summary of the Utility Model

[0005] The utility model aims to solve the technical problems that there are problems of uneven mixing of various material solutions in the existing reactor, and uneven mixing and slow reaction speed when the by-product solution reacts with other reagent solutions, resulting in poor treatment effect of the by-products. The purpose is to provide a mixing reactor to realize jet mixing between various materials, improve the mixing effect, and thus ensure the sufficient degree of material reaction.

[0006] The utility model is realized through the following technical solutions:

[0007] A hybrid reactor, comprising a hybrid reactor body, the hybrid reactor body includes an injection mixer and a reaction chamber, the injection mixer is arranged at the inlet end of the hybrid reactor body, the inlet of the injection mixer is connected with a first feed port and an injection feed port, the injection feed port injects materials into the injection mixer from the tangential direction, and the outlet of the injection mixer is connected with the reaction chamber.

[0008] Further, the injection mixer further includes a mixing chamber, the mixing chamber has two inlets, one inlet is connected with the first feed port, and the other inlet is connected with the injection feed port.

[0009] Further, the injection feed port includes an injection channel and a second feed port, one end of the injection channel is connected with the mixing chamber, and the other end is provided with the second feed port.

[0010] Further, the mixing chamber is provided with injection holes, and the mixing chamber is connected with the injection channel through the injection holes.

[0011] Further, the injection channel is arranged along the tangential direction of the mixing chamber.

[0012] Further, the injection channel is a circular channel, and the diameter gradually decreases towards the end close to the injection hole.

[0013] Further, a plurality of baffle plates are arranged on the inner wall of the reaction chamber.

[0014] Further, the number of the baffle plates is set to be 3 - 10 according to the length of the reactor.

[0015] Further, the hybrid reactor body is cylindrical, with a diameter of Φ110 - 250 mm and a length of 600 mm - 1200 mm.

[0016] Further, both the hybrid reactor body and the injection mixer are made of CPVC or PVC materials.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] 1. By arranging an injection mixer in the hybrid reactor, the materials can be injected into the interior of the injection mixer to achieve rapid mixing, which improves the reaction speed. Moreover, the strong impact between the materials can improve the mixing effect and achieve full mixing, thus ensuring the full degree of the reaction.

[0019] 2. By arranging the injection channel along the tangential direction of the mixing chamber, the materials can be injected along the tangential direction to increase the injection speed. At the same time, by designing the injection channel to have a gradually decreasing diameter towards the end close to the injection hole, the injection speed can be further increased and the mixing effect can be improved.

[0020] 3. The utility model can control the flow direction of the internal reaction liquid by adding a baffle plate in the mixing reactor body. The reaction liquid flows out from the reaction liquid discharge port after passing through each stage of baffle plate, which can prevent the reaction liquid from short - circuiting, increase the reaction time of the reaction liquid, and also enhance the mixing effect to ensure sufficient reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the utility model, form a part of this application, and do not limit the embodiments of the utility model. In the drawings:

[0022] Figure 1 is a schematic structural diagram of the mixing reactor body;

[0023] Figure 2 is a schematic structural diagram of the jet mixer;

[0024] Figure 3 is a cross - sectional view of the internal structure of the jet mixer.

[0025] Marks in the drawings and corresponding component names:

[0026] 1 - mixing reactor body, 2 - jet mixer, 201 - mixing chamber, 202 - second feed port, 203 - jet channel, 204 - first feed port, 205 - jet hole, 3 - reaction chamber, 4 - baffle plate, 5 - reaction liquid discharge port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the utility model clearer and more understandable, the following further detailed description of the utility model is provided in combination with the embodiments and the drawings. The illustrative embodiments and descriptions of the utility model are only used to explain the utility model and do not limit the utility model.

[0028] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the utility model. However, it is obvious to those of ordinary skill in the art that: these specific details do not have to be adopted to implement the utility model. In other embodiments, well - known structures, circuits, materials, or methods are not specifically described to avoid obscuring the utility model.

[0029] Throughout the specification, references to "an embodiment", "embodiments", "an example" or "examples" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Thus, the phrases "an embodiment", "embodiments", "an example" or "examples" appearing throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the particular features, structures, or characteristics may be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art should understand that the diagrams provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model.

[0031] Embodiment

[0032] This embodiment provides a hybrid reactor, as Figures 1-3 shown, comprising a hybrid reactor body 1, the hybrid reactor body 1 comprising a jet mixer 2 and a reaction chamber 3, the jet mixer 2 being provided at the inlet end of the hybrid reactor body 1, an inlet of the jet mixer 2 being connected to a first feed port 204 and a jet feed port, the jet feed port injecting the material into the jet mixer 2 in a tangential direction, and an outlet of the jet mixer 2 being connected to the reaction chamber 3.

[0033] Taking the treatment of by-products of a chlorine dioxide generator as an example, when the present utility model is in use, the by-product solution of the chlorine dioxide generator enters the jet mixer 2 from the first feed port 204, and the ferrous salt solution is injected into the interior of the jet mixer 2 in a tangential direction of the jet mixer 2, and is rapidly and fully mixed with the by-products of the chlorine dioxide generator, and then enters the mixing chamber 201 of the hybrid reactor body 1, further reacts in the mixing chamber 201, and then flows out from the reaction liquid discharge port 5 of the hybrid reactor body 1. What flows out is an iron salt solution, which can be used for being added to the flocculant dosing point of a waterworks for the purification of raw water.

[0034] The utility model realizes the rapid mixing of materials by setting the injection mixer 2, enabling the materials to be injected into the interior of the injection mixer 2, thereby increasing the reaction speed. Moreover, the strong impact between the materials can improve the mixing effect and achieve full mixing, thus ensuring the full degree of the reaction.

[0035] In one or more embodiments of the present utility model, as Figure 2 shown, the injection mixer 2 further includes a mixing chamber 201, and the mixing chamber 201 has two inlets. One inlet is connected to the first feed port 204, and the other inlet is connected to the injection feed port. By setting the injection feed port, the materials are sprayed into the injection mixer 2 from the tangential direction, which improves the injection speed. Another material enters from the first feed port 204, and the two materials are mixed by injection inside the injection mixer 2, with good mixing effect and high mixing uniformity.

[0036] The injection feed port includes an injection channel 203 and a second feed port 202. One end of the injection channel 203 is connected to the mixing chamber 201, and the other end is provided with the second feed port 202. Specifically, a spray hole 205 is formed on the mixing chamber 201, and the mixing chamber 201 is connected to the injection channel 203 through the spray hole 205. The materials enter the injection channel 203 from the second feed port 202, pass through the injection channel 203, and are ejected from the spray hole 205 formed on the mixing chamber 201. The ejected materials enter the mixing chamber 201 and are mixed with the materials from the first feed port 204 at high speed, ensuring the mixing effect.

[0037] As Figure 3 shown, the injection channel 203 is arranged along the tangential direction of the mixing chamber 201; the injection channel 203 is a circular channel, and the diameter gradually decreases towards the end close to the spray hole 205. By arranging the injection channel 203 along the tangential direction of the mixing chamber 201, the materials can be sprayed in along the tangential direction to improve the injection speed. At the same time, by designing the injection channel 203 with a gradually decreasing diameter towards the end close to the spray hole 205, the injection speed can be further increased, improving the mixing effect.

[0038] As Figure 1 shown, a plurality of baffle plates 4 are arranged on the inner wall of the reaction chamber 3, and the number of baffle plates 4 is set to 3 - 10 according to the length of the reactor. By adding the baffle plates 4 in the mixing reactor body 1, the flow direction of the internal reaction liquid can be controlled. The reaction liquid flows out from the reaction liquid discharge port 5 after passing through each stage of baffle plates 4, which can prevent the reaction liquid from short-circuiting, increase the reaction time of the reaction liquid, and also increase the mixing effect, ensuring full reaction. The number of the baffle plates 4 is preferably 6 baffle plates 4.

[0039] In the present utility model, both the mixing reactor body 1 and the jet mixer 2 are made of corrosion-resistant CPVC or PVC materials. Specifically, they can be made of PVC or CPVC pipes with a diameter of Φ110 - 250 mm and a length of 600 mm - 1200 mm. The outer diameter of the jet mixer 2 matches the inner diameter of the mixing reactor body 1. The jet holes 205 on the jet mixer 2 communicating with the jet channel 203 are Φ2 mm - Φ6 mm. The corrosion-resistant CPVC or PVC materials can well meet the corrosiveness requirements of the reaction medium.

[0040] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mixing reactor, characterized in that: The invention comprises a mixing reactor body (1), wherein the mixing reactor body (1) comprises a jet mixer (2) and a reaction chamber (3), wherein the jet mixer (2) is arranged at the inlet end of the mixing reactor body (1), the inlet of the jet mixer (2) is connected to a first feed port (204) and a jet feed port, wherein the jet feed port sprays materials into the jet mixer (2) from a tangential direction, and the outlet of the jet mixer (2) is connected to the reaction chamber (3).

2. A mixing reactor according to claim 1, characterized in that: The jet mixer (2) further comprises a mixing chamber (201), wherein the mixing chamber (201) has two inlets, one of which is connected to the first feed port (204) and the other of which is connected to the jet feed port.

3. A mixing reactor according to claim 2, characterized in that: The injection feed port comprises an injection channel (203) and a second feed port (202); one end of the injection channel (203) is connected to the mixing chamber (201), and the other end is provided with the second feed port (202).

4. A mixing reactor according to claim 3, characterized in that: The mixing chamber (201) is provided with an injection hole (205), and the mixing chamber (201) is connected to the injection channel (203) via the injection hole (205).

5. A mixing reactor according to claim 3, characterized in that: The injection channel (203) is arranged along the tangent direction of the mixing chamber (201).

6. A mixing reactor according to claim 3, characterized in that: The injection channel (203) is a circular channel, and its diameter gradually decreases toward the end close to the injection hole (205).

7. A mixing reactor according to claim 1, characterized in that: The inner wall of the reaction chamber (3) is provided with a plurality of baffles (4).

8. A mixing reactor according to claim 7, characterized in that: The number of the baffles (4) is 3-10 according to the length of the reactor.

9. A mixing reactor according to any one of claims 1 to 8, characterized in that: The mixing reactor body (1) is cylindrical, Φ110-250mm, and 600mm-1200mm in length.

10. A mixing reactor according to any one of claims 1 to 8, characterized in that: The mixing reactor body (1) and the jet mixer (2) are both made of CPVC or PVC material.

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