A jet turbulence temperature regulating carbonization tower and its use method

Abstract

The present invention discloses a jet turbulence temperature-regulating carbonization tower and a method for using the same. The carbonization tower comprises an outer shell, a stirring mechanism concentrically arranged inside the outer shell, and a spiral heat exchange tube arranged on the outer periphery of the outer shell. The stirring mechanism is connected to a driving device arranged outside the outer shell, and the stirring mechanism is driven to rotate by the driving device to mix materials. A turbulent air intake mechanism is provided around the stirring mechanism inside the outer shell, and a high-energy turbulent fluid is generated by the turbulent air intake mechanism to accelerate the reaction. The gaseous reactants of the carbonization tower of the present invention enter the carbonization tower through the turbulent air intake mechanism, contact with the entering solid-phase and gas-phase materials, form a turbulent fluid, and cooperate with the positive and negative sawtooth structure of the second guide impeller to generate microbubbles that grow and explode in the turbulent fluid, forming a continuously updated reaction surface and improving the reaction rate.

Description

Technical Field

[0001] The invention relates to the technical field of carbonizing towers, and in particular to a jet turbulence temperature regulating carbonizing tower and a use method thereof. Background Art

[0002] Calcium carbonate is a valuable resource with a wide range of uses. The production of light calcium carbonate in existing technologies requires a carbonization reactor. Currently, three types of carbonization towers are commonly used: stirred carbonization towers, continuous spray carbonization towers, and high-gravity synthesis carbonization towers. The stirred carbonization tower, also known as the kettle carbonization method, completes the carbonization reaction under continuous stirring conditions by controlling the reaction temperature, concentration, stirring speed, and reaction time. This method results in a relatively uniform reaction. Currently, this type of equipment is widely used by domestic manufacturers. However, its disadvantages include the large amount of energy required for stirring, complex operation, insufficient carbon dioxide absorption, and a long carbonization time, which affects production efficiency. Summary of the Invention

[0003] Technical purpose: In view of the shortcomings of the existing carbonization tower, such as long carbonization time and low efficiency, the present invention discloses a jet turbulence temperature-regulating carbonization tower and its use method, which can improve production efficiency and ensure carbonization quality.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A jet turbulence temperature-regulating carbonization tower comprises an outer shell, a stirring mechanism concentrically arranged inside the outer shell, and a spiral heat exchange tube arranged on the outer periphery of the outer shell. The stirring mechanism is connected to a driving device arranged outside the outer shell, and the driving device drives the stirring mechanism to rotate to mix the materials. Turbulence air intake mechanisms are provided around the stirring mechanism inside the outer shell, and high-energy turbulent fluid is generated by the turbulence air intake mechanisms to accelerate the reaction.

[0006] Preferably, the turbulent air intake mechanism of the present invention includes an air intake main pipe, which adopts an annular structure and is horizontally arranged in an outer shell. A plurality of air intake branch pipes are provided below the air intake main pipe in a direction perpendicular to the air intake main pipe. The bottom of the air intake branch pipe is fixed to the bottom of the outer shell. A turbulent flow nozzle is provided on the air intake branch pipe. The gas enters the air intake branch pipe through the air intake main pipe and finally enters the outer shell from the turbulent flow nozzle. The turbulent flow nozzle is arranged along the tangent direction of the circumference of the air intake branch pipe to form an air intake flow channel concentric with the outer shell.

[0007] Preferably, the intake branch pipes of the present invention are arranged in a double-layer ring below the main intake pipe, and the direction of the turbulence nozzles on the outer intake branch pipe is opposite to that of the turbulence nozzles on the inner intake branch pipe, forming left-handed and right-handed intake flow channels respectively.

[0008] Preferably, the outer shell of the present invention is provided with turbulence baffles between adjacent intake branch pipes along the circumferential direction, and the turbulence baffles adopt a broken line structure.

[0009] Preferably, the stirring mechanism of the present invention includes a stirring shaft and a first guide impeller and a second guide impeller arranged from top to bottom along the length direction of the stirring shaft. The blades of the first guide impeller are S-shaped blades, and the second guide impeller adopts a serrated blade structure. The position of the turbulence baffle corresponds to the second guide impeller in the vertical direction.

[0010] Preferably, the serrations on the second guide impeller blade of the present invention are integrally formed with the blade body, and the serrations include a first curved surface, a second curved surface, and a third curved surface with consistent curvature directions, the curvature radius of the first curved surface is greater than the curvature radius of the second curved surface and the third curved surface, the second curved surface and the third curved surface are adjacent to each other, the two side edges of the first curved surface are adjacent to the edges of the second curved surface and the third curved surface respectively, and the lower ends of the first curved surface, the second curved surface, and the third curved surface converge at one point to form the tip structure of the serrations.

[0011] Preferably, the saw teeth of the present invention are arranged alternately in positive and negative directions along the length direction of the blade, and the tips of the saw teeth are inclined toward the inside of the curved surface at an inclination angle of 25-40°.

[0012] The present invention also provides a method for using a jet turbulence temperature-regulating carbonization tower. The above-mentioned carbonization tower is used, which is characterized in that the material is fed into the outer shell through the feed port, and the gaseous reactant enters through the air intake pipe and enters the outer shell in a tangential turbulent flow manner; the material is stirred by the first guide impeller and combined with the turbulent air intake to form a turbulent fluid, and the turbulent fluid is sheared by the sawtooth of the second guide impeller to form a continuously updated reaction surface, so that the reaction proceeds rapidly.

[0013] Preferably, after the gas reactants of the present invention enter the outer shell through the turbulent nozzle, the multiphase fluid entering the outer shell generates high kinetic energy turbulent microbubbles, and the turbulent microbubbles grow to produce an explosion effect. The fluid reactants pass through the turbulent baffle to form a vortex-shaped turbulent internal circulation fluid, and the reaction continues.

[0014] Beneficial effects: The jet turbulence temperature-regulating carbonization tower provided by the present invention has the following beneficial effects:

[0015] 1. The gaseous reactants of the carbonization tower of the present invention enter the carbonization tower through the turbulent air inlet mechanism, contact with the incoming solid and gaseous materials, and form a turbulent fluid. The generated microbubbles grow and explode in the turbulent fluid, forming a continuously updated reaction surface and improving the reaction rate.

[0016] 2. The air inlet branch pipe of the present invention adopts a double-layer annular arrangement structure. The turbulent nozzles on the outer and inner air inlet branches are oriented in different directions, forming two layers of turbulence in different directions, forming two groups of positive and negative vortex fluids, thereby forming a turbulent state of the fluid in the tower, allowing the materials to fully contact and react, and cooperating with the stirring mechanism to enable the reaction to react extremely quickly under multiple conditions, reducing the reaction time, improving production efficiency and reducing production costs.

[0017] 3. The present invention guides the turbulent fluid through a turbulent baffle with a broken line structure, so that it contacts the serrations of the second guide impeller. The positive and negative serrations of the second guide impeller generate turbulent transmission force, so that the material forms a rapidly flowing internal circulation turbulent fluid, generating a high-kinetic energy, high-shear microbubble explosion reaction. The turbulent and tortuous flow channel intensifies the renewal of the solid, liquid, and gas in the fluid and the surface, forming a high-kinetic energy turbulent flow, so that the reaction substances are completed instantly, and the reaction efficiency is accelerated.

[0018] 4. The serrated surface of the second guide impeller of the present invention is a curved surface structure, and the second curved surface and the third curved surface are oriented in different directions, providing thrust in different directions to the fluid, thereby forming a better turbulent effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0020] Figure 1 This is the overall structural diagram of the carbonization tower of the present invention;

[0021] Figure 2 This is a structural diagram of the first guide impeller of the present invention;

[0022] Figure 3 This is a schematic diagram of the arrangement of the turbulent flow nozzle in the outer shell of the present invention;

[0023] Figure 4 This is a structural diagram of the second guide impeller of the present invention;

[0024] Figure 5 This is a diagram of the sawtooth structure of the second guide impeller of the present invention;

[0025] Among them, 1-outer shell, 2-stirring mechanism, 3-spiral heat exchange tube, 4-driving device, 5-inlet main pipe, 6-inlet branch pipe, 7-turbulence nozzle, 8-turbulence baffle, 9-stirring shaft, 10-first guide impeller, 11-second guide impeller, 12-sawtooth, 13-first curved surface, 14-second curved surface, 15-third curved surface. Implementation Method

[0026] The present invention will be described more clearly and completely below by way of a preferred embodiment in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiment.

[0027] like Figure 1-Figure 5 The figure shows a jet turbulence temperature-regulating carbonization tower disclosed in the present invention, comprising an outer shell 1, a stirring mechanism 2 concentrically arranged in the outer shell, and a spiral heat exchange tube 3 arranged on the outer periphery of the outer shell. The stirring mechanism 2 is connected to a driving device 4 arranged outside the outer shell 1, and the driving device 4 drives the stirring mechanism 2 to rotate to mix the materials. A turbulent air intake mechanism is provided around the stirring mechanism 2 inside the outer shell 1, and the turbulent air intake mechanism generates high-energy turbulent fluid to accelerate the reaction.

[0028] In a specific embodiment, the turbulent air intake mechanism of the present invention includes an air intake main pipe 5, which adopts an annular structure and is horizontally arranged in the outer shell 1. A plurality of air intake branch pipes 6 are arranged below the air intake main pipe 5 in a direction perpendicular to the air intake main pipe 5. The bottom of the air intake branch pipe 6 is fixed to the bottom of the outer shell 1. A turbulent flow nozzle 7 is provided on the air intake branch pipe 6. The gas enters the air intake branch pipe 6 through the air intake main pipe 5 and finally enters the outer shell 1 from the turbulent flow nozzle 7. The turbulent flow nozzle 7 is arranged along the tangent direction of the circumference of the air intake branch pipe 6 to form an intake flow channel concentric with the outer shell 1.

[0029] The gaseous reactants enter the outer shell through the turbulent nozzle 7, disturbing the material to form a high-kinetic energy fluid and forming microbubbles inside. The microbubbles grow and explode to produce high-kinetic energy solid, gas, and liquid bubble membrane fragments, forming a continuously updated reaction surface for continuous reaction.

[0030] In order to enhance the turbulence effect generated by the intake and avoid the formation of regular flow of intake in a single direction in the outer shell, thereby affecting the reaction rate, the intake branch pipe 6 of the present invention is arranged in a double-layer ring shape below the intake main pipe 5. The direction of the turbulence nozzle 7 on the outer intake branch pipe is opposite to that of the turbulence nozzle 7 on the inner intake branch pipe, forming left-handed and right-handed intake flow channels respectively. The double-layer reverse intake structure enables the fluid to flow in both directions, thereby making it easier to form turbulence, thereby ensuring sufficient contact between materials and reaction efficiency.

[0031] The present invention also provides a turbulence baffle 8 between adjacent air intake branches 6 along the circumferential direction of the outer shell 1. The turbulence baffle 8 adopts a broken line structure. Through the broken line turbulence baffle 8, the tortuous flow channel accelerates the renewal of the fluid surface, forming a high kinetic energy turbulent flow, so that the reaction substances are completed instantly, thereby accelerating the reaction efficiency.

[0032] The stirring mechanism of the present invention includes a stirring shaft 9 and a first guide impeller 10 and a second guide impeller 11 arranged from top to bottom along the length direction of the stirring shaft 9. The blades of the first guide impeller 10 are S-shaped blades, and the second guide impeller 11 adopts a serrated blade structure. The position of the turbulence baffle 8 corresponds to the second guide impeller 11 in the vertical direction. The first guide impeller is used to mix the material and transport it downward. The second guide impeller 11 shears the material while stirring and forms an internal circulation turbulence through the serrated structure.

[0033] In order to improve the turbulence formation effect and at the same time increase the service life of the equipment, the serrations 12 on the blades of the second guide impeller 11 of the present invention are integrally formed with the blade body, and the serrations 12 include a first curved surface 13, a second curved surface 14 and a third curved surface 15 with the same curvature direction. The curvature radius of the first curved surface 13 is greater than the curvature radius of the second curved surface 14 and the third curved surface 15. The second curved surface 14 and the third curved surface 15 are adjacent to each other. The two side edges of the first curved surface 13 are adjacent to the edges of the second curved surface 14 and the third curved surface 15 respectively. The lower ends of the first curved surface 13, the second curved surface 14 and the third curved surface 15 meet at a point to form a tip structure of the serration 12. During the rotation of the second guide impeller 11, the fluid is pushed to flow in the direction corresponding to the curved surface by the curved surface of the serrations, and due to the curvature of the curved surface, a turbulent transmission force is generated when the stirring shaft rotates, which can cause the gas-liquid microbubbles to produce multi-directional movement. The solid-liquid-gas-microbubble mixture forms a rapidly flowing internal circulation turbulent fluid, generating high kinetic energy, high shear, and microbubble explosion reactions.

[0034] Preferably, the saw teeth 12 of the present invention are arranged alternately in positive and negative directions along the length direction of the blade, and the thrusts generated by adjacent saw teeth on the fluid are inconsistent. The tips of the saw teeth 12 are inclined toward the inside of the curved surface, and the inclination angle is 25-40°.

[0035] The air inlet main pipe 5 in the carbonization tower is connected to the outside through a pipeline running through the outer shell 1, and the gaseous reactants enter through the air inlet main pipe 5. The upper end of the outer shell is provided with a liquid reactant inlet pipe and a crystal form control agent inlet pipe. Both inlet pipes are provided with a quantitative liquid level automatic control valve, a mass flow density meter and a control valve to control the amount of liquid reactants. Liquid level meter interfaces are provided on the upper and lower side walls of the outer shell, and the side walls of the outer shell are also provided with an acidity meter interface, a conductivity meter interface, and upper and lower interfaces of the temperature meter. The corresponding functional equipment is connected through each interface, and the carbonization reaction is carried out in conjunction with the turbulent air intake mechanism and the stirring mechanism.

[0036] The present invention also provides a method for using a jet turbulence temperature-regulating carbonization tower. Using the above-mentioned carbonization tower structure, materials are fed into the outer shell through the feed port, and gaseous reactants enter through the air intake pipe and enter the outer shell in a tangential turbulent flow manner; the materials are stirred by the first guide impeller and combined with the turbulent air intake to form a turbulent fluid, and the turbulent fluid is sheared by the sawtooth of the second guide impeller to form a continuously updated reaction surface, so that the reaction proceeds rapidly.

[0037] After the gaseous reactants enter the outer shell through the turbulent nozzle, the multiphase fluid entering the outer shell generates high kinetic energy turbulent microbubbles, and the turbulent microbubbles grow to produce an explosion effect. The fluid reactants pass through the turbulent baffle to form a vortex-shaped turbulent internal circulation fluid, and the reaction continues.

[0038] In an embodiment of the present invention, materials are fed into the outer shell through each material inlet, and the heating device is started to heat the outer shell through the spiral heat exchange tube to meet the reaction temperature conditions of the product. After the gas reactants pass through the left and right turbulent nozzle assemblies, multiple evenly distributed turbulent nozzles form a microbubble turbulent fluid. The driving device drives the two guide impellers to rotate, and the serrations of the second guide impeller 11 once again provide power for the growth of turbulent microbubbles. Under the action of the vortex force, shear force and guide direction force of the turbulent baffle, the solid reactants, liquid reactants and gas reactants simultaneously generate high-energy extremely thin impact layer fragments in the turbulent state. At the same time, due to the existence of turbulence and the action of the first and second guide impellers, the solid-liquid-gas mixture generates a high-energy turbulent flow In the body environment, the positive and negative serrated structures of the second guide impeller 11 generate high shear force, which makes the microbubble fluid generate a high kinetic energy field in a turbulent manner. At the same time, the high kinetic energy microbubbles expand and explode rapidly, generating a high-temperature and high-energy shock wave reaction environment, and generating a stronger turbulent field. Because of the special shape of the serrations 12 of the second guide impeller 11, the solid, gas and liquid form an extreme solid-liquid-gas film under the rapid flow. Under the action of high-speed shear force and liquid pressure, in the process of flowing through the turbulence baffle 8, the liquid, solid and gas form a high-energy turbulent fluid and are dispersed and broken by the second guide impeller 11 to form a turbulent fluid with a very large and continuously renewed solid, liquid and gas surface area. The high kinetic energy turbulent and tortuous flow channel intensifies the extremely thin and surface renewal of solid, liquid and gas. In this way, excellent mass transfer and reaction conditions are formed inside the stirred carbonization tower. At the same time, since the solid, liquid, and gas phases can generate a turbulent flow with a controllable relative speed between 7 m / s and 12 m / s between the mass transfer objects after passing through the first and second guide impellers, a high-speed solid-liquid-gas phase reaction can be achieved under high kinetic energy conditions, and the reaction product rate is also controllable. The reactants are discharged from the material outlet at the bottom of the outer shell. By using the carbonization tower structure of the present invention, the substances in the entire carbonization tower react rapidly, avoiding the problems of low dissolution rate and slow reaction, and enabling high-speed reaction between the solid, liquid, and gas in the carbonization tower, thereby increasing the reaction rate, reducing the reaction time, improving production efficiency, and reducing production costs.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A jet turbulence temperature regulating carbonization tower, characterized in that: The invention comprises an outer shell (1), a stirring mechanism (2) concentrically arranged inside the outer shell (1), and a spiral heat exchange tube (3) arranged on the outer periphery of the outer shell (1); the stirring mechanism (2) is connected to a driving device (4) arranged outside the outer shell (1); the driving device (4) drives the stirring mechanism (2) to rotate to mix the materials; a turbulent air intake mechanism is provided around the stirring mechanism (2) inside the outer shell (1); the turbulent air intake mechanism generates a high-energy turbulent fluid to accelerate the reaction; The invention is characterized in that the turbulent air intake mechanism comprises an air intake main pipe (5), the air intake main pipe (5) adopts an annular structure and is horizontally arranged in the outer shell (1), a plurality of air intake branch pipes (6) are arranged below the air intake main pipe (5) in a direction perpendicular to the air intake main pipe (5), the bottom of the air intake branch pipe (6) is fixed to the bottom of the outer shell (1), and a turbulent flow nozzle (7) is arranged on the air intake branch pipe (6), the gas enters the air intake branch pipe (6) through the air intake main pipe (5), and finally enters the outer shell (1) from the turbulent flow nozzle (7), and the turbulent flow nozzle (7) is arranged along the tangent direction of the circumference of the air intake branch pipe (6) to form an air intake flow channel concentric with the outer shell (1); The air intake branch pipe (6) is arranged in a double-layer ring below the air intake main pipe (5), and the direction of the turbulent flow nozzle (7) on the outer air intake branch pipe is opposite to the direction of the turbulent flow nozzle (7) on the inner air intake branch pipe, forming left-handed and right-handed intake flow channels respectively.

2. The jet turbulence temperature regulating carbonization tower according to claim 1, characterized in that: The outer shell (1) is provided with turbulence baffles (8) between adjacent intake branch pipes (6) along the circumferential direction, and the turbulence baffles (8) adopt a broken line structure.

3. The jet turbulence temperature regulating carbonization tower according to claim 2, characterized in that: The stirring mechanism comprises a stirring shaft (9) and a first guide impeller (10) and a second guide impeller (11) arranged from top to bottom along the length direction of the stirring shaft (9); the blades of the first guide impeller (10) are S-shaped blades, the second guide impeller (11) adopts a sawtooth blade structure, and the position of the turbulence baffle (8) corresponds to the second guide impeller (11) in the vertical direction.

4. The jet turbulence temperature regulating carbonization tower according to claim 3, characterized in that: The sawtooth (12) on the blade of the second guide impeller (11) is integrally formed with the blade body, and the sawtooth (12) includes a first curved surface (13), a second curved surface (14), and a third curved surface (15) having the same curvature direction, the curvature radius of the first curved surface (13) is greater than the curvature radius of the second curved surface (14) and the third curved surface (15), the second curved surface (14) and the third curved surface (15) are adjacent to each other, the two side edges of the first curved surface (13) are adjacent to the edges of the second curved surface (14) and the third curved surface (15), respectively, and the lower ends of the first curved surface (13), the second curved surface (14), and the third curved surface (15) intersect at a point, forming a tip structure of the sawtooth (12).

5. The jet turbulence temperature regulating carbonization tower according to claim 4, characterized in that: The saw teeth (12) are arranged alternately in positive and negative directions along the length direction of the blade, and the tips of the saw teeth (12) are inclined toward the inside of the curved surface, with an inclination angle of 25-40°.

6. A method for using a jet turbulence temperature-regulating carbonization tower, using the carbonization tower according to any one of claims 1 to 5, characterized in that: The material is fed into the outer shell through the feed port, and the gaseous reactants enter through the air inlet main pipe and enter the outer shell in a tangential turbulent flow manner; the material is stirred by the first guide impeller and forms a turbulent fluid with the turbulent air intake. The turbulent fluid is sheared by the sawtooth of the second guide impeller, forming a continuously updated reaction surface and reacting rapidly.

7. The method for using a jet turbulence temperature-regulating carbonization tower according to claim 6, characterized in that: After the gaseous reactants enter the outer shell through the turbulent nozzle, the multiphase fluid entering the outer shell generates high kinetic energy turbulent microbubbles, and the turbulent microbubbles grow to produce an explosion effect. The fluid reactants pass through the turbulent baffle to form a vortex-shaped turbulent internal circulation fluid, and the reaction continues.

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