Airflow oscillation reaction tower

Abstract

The utility model provides an airflow oscillation reaction tower which comprises a tower body and an ultrasonic vibration device, a feed port and a discharge port are respectively arranged on the side surfaces of the upper part and the lower part of the tower body, a gas inlet pipe for introducing gas into the reaction tower is arranged at the lower part of the tower body, and an exhaust port is arranged at the top end of the tower body. A stirrer, a filler layer and a heating coil are sequentially arranged in the tower body from top to bottom, the stirrer comprises a stirring shaft and multiple layers of stirring blades arranged on the stirring shaft, the filler layer is located in the middle of the tower body and used for uniformly mixing gas and reaction liquid, the heating coil is used for controlling the reaction temperature in the tower, and a transmission device is arranged at the top end of the tower body. The transmission device is connected with the upper end of the stirring shaft, and an ultrasonic leading-in hole is formed in the outer wall of the tower body and used for installing an ultrasonic vibration device. According to the utility model, internal materials are fully reacted under the action of airflow oscillation, and the reaction efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical production, especially relates to a gas flow oscillation reaction tower. BACKGROUND

[0002] Sodium bicarbonate is also known as sodium bicarbonate, which is a kind of inorganic salt, white crystalline powder, odorless, alkaline, easy to dissolve in water, widely used in pharmaceutical industry, food processing, fire fighting equipment and other industries, its industrial preparation mainly takes brine and ammonium bicarbonate as raw material to make by double decomposition reaction, the double decomposition reaction is that ammonium bicarbonate and sodium chloride in brine react to generate sodium bicarbonate and ammonium chloride, and then the purpose of sodium bicarbonate co-production ammonium chloride is realized. In the process of producing sodium bicarbonate byproduct ammonium chloride by reaction of sodium chloride and ammonium bicarbonate, the commonly used reaction kettle is stirring plus external heat source device. When running, the newly generated sodium bicarbonate is easy to produce scab and wall hanging, which causes the heat exchanger tube to be blocked after the reaction kettle runs for a period of time, and frequent cleaning is needed. In addition, only stirring can easily cause insufficient reaction, poor mass transfer and low conversion rate. Chinese utility model CN 210764361 U provides a device for preparing sodium bicarbonate by double decomposition, which comprises a double decomposition reactor, an ammonium bicarbonate dissolver, a solid-liquid separator and a filtrate storage barrel, the upper part of the double decomposition reactor is provided with an ammonium bicarbonate solution inlet and a raw material sodium salt solution inlet, the lower part is provided with a discharge port, the discharge port is communicated with the solid-liquid separator; the solid-liquid separator is communicated with the filtrate storage barrel; the filtrate storage barrel sends liquid to the ammonium salt production process; the ammonium bicarbonate dissolver is provided with a raw material solid ammonium bicarbonate inlet and an ammonium bicarbonate solution outlet, and the ammonium bicarbonate solution outlet is communicated with the ammonium bicarbonate solution inlet of the double decomposition reactor. The above-mentioned device separates the dissolution process of solid ammonium bicarbonate in sodium salt solution and the double decomposition process by adding ammonium bicarbonate dissolver, improves the utilization rate of ammonium bicarbonate and the quality of sodium bicarbonate, but the added ammonium bicarbonate dissolver increases the floor area and also increases the production cost. SUMMARY

[0003] The technical problem solved by the utility model is that in the process of producing sodium bicarbonate byproduct ammonium chloride by reaction of sodium chloride and ammonium bicarbonate, the reaction is insufficient, the mass transfer is poor, the conversion rate is low, and the newly generated sodium bicarbonate is easy to produce scab and wall hanging.

[0004] The utility model provides a kind of airflow shock reaction tower, including tower body, ultrasonic vibration device, the upper portion and lower portion side of the tower body are equipped with feeding port and discharge port respectively, the lower portion of the tower body is equipped with the air inlet pipe for passing into gas in reaction tower, the top of the tower body is equipped with exhaust port, the inside of the tower body is sequentially equipped with stirrer, packing layer, heating coil from top to bottom, stirrer includes stirring shaft and multiple layers of stirring blade being arranged on stirring shaft, packing layer is located in the middle of tower body, for making gas and reaction liquid mix evenly, heating coil is used to control reaction temperature in tower, the top of the tower body is equipped with transmission device, transmission device is connected with the upper end of stirring shaft, the outer wall of the tower body is equipped with ultrasonic wave introduction hole, for installing ultrasonic vibration device.

[0005] Further, the feeding port includes a first feeding port and a second feeding port, the first feeding port is used for conveying sodium chloride, and the second feeding port is used for conveying ammonium bicarbonate.

[0006] Further, the airflow shock reaction tower further comprises a carbon dioxide gas inlet device for inputting carbon dioxide compressed air into the tower, the air inlet pipe is an annular pipe, a plurality of exhaust holes are uniformly arranged on the annular pipe, and the air inlet pipe of the carbon dioxide gas inlet device is communicated with the annular pipe by penetrating the reaction tower from the outside.

[0007] Further, the stirrer comprises double-layer stirring blades, the double-layer stirring blades are respectively arranged corresponding to the first feeding port and the second feeding port, and the height of the upper stirring blade is lower than the liquid level of the reaction liquid.

[0008] Further, the ultrasonic vibration device is arranged on the outer wall of the tower body between the first feeding port and the second feeding port, and another ultrasonic vibration device is arranged on the outer wall of the tower body between the heating coil and the air inlet pipe.

[0009] Further, the heating coil comprises multiple layers.

[0010] The utility model has the following beneficial effects: (1) the utility model discloses a carbon dioxide gas inlet device, which uniformly inputs carbon dioxide compressed gas, provides airflow impact, disturbs the liquid in the tower, mixes fully, simultaneously sets up the packing layer in the middle of tower body, and further mixes the materials in the tower under the action of airflow disturbance, so that the reaction is sufficient, (2) the utility model discloses an ultrasonic vibration device arranged on the outer wall of the tower body between the first feeding port and the second feeding port, which uses ultrasonic principle to produce shock reaction on the reaction liquid, so that the reaction is sufficient, the reaction rate is improved, and simultaneously, the ultrasonic vibration device is arranged on the outer wall of the tower body between the heating coil and the air inlet pipe, which prevents the newly generated baking soda from hanging on the wall and keeps the reaction tower clean and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 Fig. 1 is a schematic view of the airflow shock reaction tower. DETAILED DESCRIPTION

[0012] In order to clearly illustrate the technical features of the scheme, the following will be described through specific embodiments, and combined with its drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0013] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application.

[0014] As shown in Figure 1 The gas flow shock reaction tower includes a tower body 1, a feeding port and a discharging port 4 are respectively arranged on the upper and lower sides of the tower body 1, the feeding port includes a first feeding port 2 and a second feeding port 3, the first feeding port 2 is provided with a plurality of first feeding ports 2 and is at the same height, the first feeding port 2 is used for conveying sodium chloride, the height of the second feeding port 3 is lower than that of the first feeding port 2, and the second feeding port 3 is used for conveying ammonium bicarbonate; the discharging port 4 is connected with a material taking-out device, and the material at the bottom of the reaction tower is discharged through a pipeline. When the reaction is completed, the reaction product baking soda can be discharged from the tower bottom through the material taking-out device, so that subsequent processing and utilization are facilitated.

[0015] The tower body 1 is provided with an exhaust port 6 at the top end, and the tower body 1 is provided with a gas inlet pipe 5 for introducing carbon dioxide into the reaction tower at the lower part, the gas inlet pipe 5 is an annular pipe, a plurality of exhaust holes are uniformly arranged on the annular pipe, the gas inlet pipe of the carbon dioxide gas inlet device is connected with the annular pipe 5 by penetrating the tower body 1 from the outside, and the carbon dioxide gas inlet device is used for uniformly introducing carbon dioxide compressed gas, which can provide raw materials for the reaction on the one hand to make the reaction more sufficient, and provide air flow impact on the other hand to disturb the liquid in the tower, so that the mixing is sufficient and the reaction efficiency is improved.

[0016] The tower body is internally provided with, from top to bottom, a stirrer 7, a filler layer 8 and a heating coil 9. The stirrer 6 comprises a stirring shaft and a plurality of layers of stirring blades arranged on the stirring shaft. In the embodiment, the stirrer 6 comprises double layers of stirring blades, which are arranged corresponding to the first feeding port 2 and the second feeding port 3 respectively, for mixing the incoming material with the mother liquor uniformly. The height of the upper stirring blades is lower than the liquid level of the reaction liquid. The tower body 1 is provided at the top end with a transmission device, which is connected with the upper end of the stirring shaft. The filler layer 8 is arranged in the middle of the tower body and is supported by a bracket and a grid. The filler layer 8 is used for mixing the materials in the tower uniformly and improving the reaction efficiency and the product quality by mass transfer under the disturbance of air flow. The heating coil 9 is provided with a plurality of layers, and hot water is introduced into the heating coil 9 for maintaining the reaction temperature in the tower body 1. The reaction temperature in the reaction tower can be accurately controlled by adjusting the temperature of the hot water in the heating coil 9, so as to ensure that the reaction is carried out under the optimum temperature condition.

[0017] The tower body 1 is provided with ultrasonic wave introduction holes in the outer wall for installing ultrasonic vibration devices 10. The ultrasonic vibration devices 10 are arranged in two, one of which is arranged in the outer wall of the tower body between the first feeding port 2 and the second feeding port 3, and the other of which is arranged in the outer wall of the tower body between the heating coil 9 and the air inlet pipe 5. The ultrasonic vibration devices 10 are used for generating oscillation reaction on the reaction liquid by the principle of ultrasonic wave, so as to make the reaction sufficient and improve the reaction rate. The other ultrasonic vibration device is used for preventing the newly generated baking soda from hanging on the wall and keeping the reaction tower clean and operating efficiently.

[0018] The other parts not described in detail in the utility model belong to the prior art, and therefore will not be described here.

[0019] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to the features and embodiments without departing from the spirit and scope of the utility model. In addition, the features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the utility model without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A gas flow shock reaction column characterized by, The tower body is provided with an ultrasonic vibration device, The upper and lower sides of the tower body are respectively provided with a feeding port and a discharging port, the lower part of the tower body is provided with a gas inlet pipe for feeding gas into the reaction tower, and the top end of the tower body is provided with a gas outlet port, The inside of the tower body is sequentially provided from top to bottom with a stirrer, a packing layer and a heating coil, the stirrer comprises a stirring shaft and a plurality of layers of stirring blades arranged on the stirring shaft, the packing layer is located in the middle part of the tower body and is used for uniformly mixing gas and reaction liquid, and the heating coil is used to control the reaction temperature in the tower, The top end of the tower body is provided with a transmission device connected with the upper end of the stirring shaft, and the outer wall of the tower body is provided with an ultrasonic wave inlet hole for installing the ultrasonic vibration device.

2. The gas flow shock reaction column of claim 1, wherein, The feeding port comprises a first feeding port and a second feeding port, the first feeding port is used for conveying sodium chloride, and the second feeding port is used for conveying ammonium bicarbonate, and the height of the second feeding port is lower than that of the first feeding port.

3. The gas flow shock reaction column of claim 1, wherein, The tower body is provided with an ultrasonic vibration device, 4. The gas flow shock reaction column of claim 1, wherein, The stirrer comprises double-layer stirring blades, the double-layer stirring blades are respectively arranged corresponding to the first feeding port and the second feeding port, and the height of the upper stirring blades is lower than the liquid level of the reaction liquid.

5. The gas flow shock reaction column of claim 1, wherein, The ultrasonic vibration device is provided with two, one is arranged on the outer wall of the tower body between the first feeding port and the second feeding port, and the other is arranged on the outer wall of the tower body between the heating coil and the gas inlet pipe.

6. The gas flow shock reaction column of claim 1, wherein, The heating coil is provided with multiple layers.

Images