Composite carbon source multistage dynamic mixing reaction tank

Abstract

The utility model relates to mixed reaction tank technical field discloses a kind of composite carbon source multistage dynamic mixed reaction tank, including tank body, the inside of tank body is sequentially provided with primary premixing shear cavity, secondary convection variable-diameter cavity and tertiary oscillation homogenizing cavity from top to bottom, the top of primary premixing shear cavity is fixedly provided with stator ring, the surface of stator ring is equipped with blanking hole, the inside of secondary convection variable-diameter cavity is fixedly provided with flow guide cylinder, the inner wall of flow guide cylinder is equipped with variable-diameter spiral flow guide passage, the inside of tertiary oscillation homogenizing cavity is rotatably provided with reciprocating swing flow guide plate;Rotor disc and stator ring cooperate to produce high-strength shear, turbulence and cavitation effect, directly smash high-viscosity component (such as molasses) and unsoaked solid particles, avoid lump accumulation;High-speed impact and forced convection realize multi-component preliminary homogenization, solve the problem of uneven dispersion of traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of mixing reaction vessel technology, specifically a multi-stage dynamic mixing reaction vessel with a composite carbon source. Background Technology

[0002] In fields such as wastewater treatment, bio-fermentation, and chemical synthesis, composite carbon sources (such as multi-component compound solutions containing sodium acetate, glucose, glycerol, etc.) serve as key nutrient substrates or electron donors, and their degree of mixing and homogeneity directly affects the metabolic efficiency of microorganisms and the treatment efficiency of the system.

[0003] Traditional mixing reactors have the following drawbacks when processing such multi-component systems: uneven component dispersion. Composite carbon sources often contain high-viscosity liquids (such as molasses), solid particles, and low-viscosity components. Traditional equipment cannot simultaneously achieve the breaking down of high-viscosity components, solid-liquid wetting, and molecular-level mixing, which easily leads to the formation of undispersed agglomerates or concentration gradients, resulting in unstable carbon source release. Mass transfer efficiency is limited. Conventional stirring relies on a single flow field (such as laminar circulation or turbulent shearing), which cannot take into account both macroscopic convection and microscopic diffusion. Especially when the solid content is high or the viscosity changes abruptly, it is easy to form flow dead zones, reducing the uniformity of mixing. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage dynamic mixing reactor with composite carbon source, which has the effects of efficient crushing and forced premixing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a multi-stage dynamic mixing reaction vessel for composite carbon source, comprising a vessel body, wherein the interior of the vessel body is provided with a primary premixing shearing chamber, a secondary convection variable diameter chamber, and a tertiary oscillating homogenizing chamber from top to bottom; a stator ring is fixedly provided at the top of the primary premixing shearing chamber, and a feeding hole is provided on the surface of the stator ring; a guide tube is fixedly provided inside the secondary convection variable diameter chamber, and a variable diameter spiral guide channel is provided on the inner wall of the guide tube; a reciprocating oscillating guide plate is rotatably provided inside the tertiary oscillating homogenizing chamber; a rotating shaft is rotatably provided in the middle of the vessel body, and a rotor disk is fixedly provided at the top of the rotating shaft; shearing teeth are provided on the upper surface of the rotor disk near the edge.

[0006] A further feature of this invention is that: a can lid is fixedly provided at the top of the can body, a feeding pipe is fixedly provided on one side of the top of the can lid, the middle part of the can lid is rotatably connected to a rotating shaft, a discharge pipe is fixedly provided at the middle of the bottom of the can body, a sealing cap is threaded at the bottom of the discharge pipe, and a support leg is fixedly provided at the bottom of the can body.

[0007] A further feature of this invention is that a stirring blade is fixedly provided in the middle of the rotating shaft, the stirring blade corresponds to the inner diameter of the guide tube, and the stirring blade is arc-shaped.

[0008] A further feature of this invention is that: four mounting seats are fixedly provided on the inner wall of the three-stage oscillating homogenizing chamber; a connecting shaft that is rotatably connected to the mounting seats is fixedly provided at the middle of the top of the guide plate; a mounting plate is fixedly provided on the surface of the connecting shaft; and a torsion spring sleeved on the outside of the connecting shaft is provided between the mounting plate and the mounting seat.

[0009] A further feature of this invention is that a rotating cam is fixedly provided at the bottom end of the rotating shaft, and the surface of the rotating cam is provided with four protrusions, the positions of which correspond to the guide plate.

[0010] A further feature of this invention is that a driven gear is fixedly provided at the top end of the rotating shaft, a motor frame is fixedly provided on the other side of the top end of the can lid, a drive motor is fixedly provided at the top end of the motor frame, and a drive gear that meshes with the driven gear is fixedly provided on the transmission shaft of the drive motor.

[0011] A further feature of this invention is that the bottoms of the primary premixed shear chamber, the secondary convection variable diameter chamber, and the tertiary oscillating homogenizing chamber are all conical, so that the primary premixed shear chamber, the secondary convection variable diameter chamber, and the tertiary oscillating homogenizing chamber are interconnected.

[0012] In summary, this invention has the following beneficial effects: The rotor disk and stator ring of this invention, in combination, generate high-intensity shearing, turbulence, and cavitation effects, directly breaking down high-viscosity components (such as molasses) and unwetted solid particles, avoiding agglomeration; high-speed impact and forced convection achieve preliminary homogenization of multiple components, solving the problem of uneven dispersion in traditional equipment; the variable-diameter spiral guide channel induces vortex diffusion and reverse flow through the large pitch of the upper section, enhancing macroscopic convection mass transfer, while the small pitch of the lower section accelerates the flow and applies moderate shearing, breaking the laminar boundary layer and eliminating flow dead zones. The synergistic effect of the two sections significantly improves the fusion efficiency of components with different physical properties; the rotating cam drives the guide plate to oscillate back and forth, generating low-frequency mechanical oscillation and pressure pulsation, continuously disturbing the small concentration gradient, thoroughly dispersing residual micro-clusters, and the torsion spring reset mechanism ensures continuous disturbance without dead zones, achieving molecular-scale homogenization and overcoming microscopic diffusion barriers. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the rotating shaft of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the guide tube of this utility model;

[0017] Figure 5 This utility model Figure 2 A magnified structural diagram at point A.

[0018] In the diagram: 1. Tank body; 101. Tank cover; 102. Feeding pipe; 103. Support leg; 104. Primary premixing shearing chamber; 105. Stator ring; 106. Discharge hole; 107. Secondary convection variable diameter chamber; 108. Guide tube; 109. Variable diameter spiral guide channel; 1010. Tertiary oscillating homogenizing chamber; 1011. Mounting base; 1012. Guide plate; 1013. Connecting shaft; 1014. Mounting plate; 1015. Torsion spring; 1016. Discharge pipe; 1017. Sealing cover; 2. Rotating shaft; 201. Driven gear; 202. Rotor disc; 203. Shearing gear; 204. Stirring blade; 205. Rotary cam; 3. Motor frame; 301. Drive motor; 302. Driving gear. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings of the embodiments thereof.

[0020] Please see Figures 1-5 In this embodiment of the present invention, a multi-stage dynamic mixing reaction vessel for a composite carbon source includes a vessel body 1. The interior of the vessel body 1, from top to bottom, is provided with a primary premixing shear chamber 104, a secondary convection variable-diameter chamber 107, and a tertiary oscillating homogenizing chamber 1010. A stator ring 105 is fixedly mounted on the top of the primary premixing shear chamber 104, and a discharge hole 106 is provided on the surface of the stator ring 105. A guide cylinder 108 is fixedly mounted inside the secondary convection variable-diameter chamber 107, and a variable-diameter spiral guide channel 109 is provided on the inner wall of the guide cylinder 108. The pitch of the upper part of the variable-diameter spiral guide channel 109 is greater than that of the lower part. The larger pitch at the top can generate vortices, diffusion, and reverse flow, enhancing convection and molecular diffusion mass transfer between different components. The smaller pitch at the bottom generates accelerated flow and a certain amount of shear. The cross-sectional area changes the flow velocity and direction of the fluid, breaking laminar flow and promoting... In the global mixing process, the three-stage oscillating homogenizing chamber 1010 is equipped with a reciprocating oscillating guide plate 1012. The oscillation of the guide plate 1012 continuously disturbs the smooth flow, breaking up any possible small concentration gradients or incompletely dispersed micro-clusters, generating low-frequency pressure pulsations, and promoting homogenization at the molecular scale. The middle of the tank body 1 is equipped with a rotating shaft 2, and the top of the rotating shaft 2 is fixed with a rotor disk 202. There is a small gap between the rotor disk 202 and the stator ring 105. The upper surface of the rotor disk 202 is provided with shearing teeth 203 near the edge. The high-speed rotating rotor disk 202 drives the fluid, generating strong shearing, impact, turbulence, and cavitation between the shearing teeth 203 and the edge of the feed hole 106 of the stator ring 105. This can effectively break up high-viscosity components, initially disperse droplets, and achieve forced initial mixing of the components.

[0021] In this embodiment, preferably, a can lid 101 is fixedly provided at the top of the can body 1, and a feeding pipe 102 is fixedly provided on one side of the top of the can lid 101. Material can be added into the can body 1 by using the feeding pipe 102. The middle part of the can lid 101 is rotatably connected to the rotating shaft 2. A discharge pipe 1016 is fixedly provided at the middle of the bottom of the can body 1, which can quickly discharge the mixed material. A sealing cap 1017 is threaded at the bottom of the discharge pipe 1016, which seals the bottom of the discharge pipe 1016. A support leg 103 is fixedly provided at the bottom of the can body 1 to provide stable support for the can body 1.

[0022] In this embodiment, preferably, a stirring blade 204 is fixedly provided in the middle of the rotating shaft 2. The stirring blade 204 corresponds to the inner diameter of the guide tube 108, and the stirring blade 204 is set to be arc-shaped. When the stirring blade 204 rotates, it provides a gentle overall circulating flow, further eliminates possible local dead zones, and pushes the fluid into the variable diameter spiral guide channel 109.

[0023] In this embodiment, preferably, four mounting seats 1011 are fixedly provided on the inner wall of the three-stage oscillating homogenizing chamber 1010, and a connecting shaft 1013 rotatably connected to the mounting seats 1011 is fixedly provided at the middle of the top end of the guide plate 1012. A mounting plate 1014 is fixedly provided on the surface of the connecting shaft 1013, and a torsion spring 1015 is provided between the mounting plate 1014 and the mounting seat 1011 and sleeved on the outside of the connecting shaft 1013. Under the action of the torsion spring 1015, the guide plate 1012 can automatically reset after swinging, realizing intermittent reciprocating swing.

[0024] In this embodiment, preferably, a rotating cam 205 is fixedly provided at the bottom end of the rotating shaft 2. The surface of the rotating cam 205 is provided with four protrusions, the positions of which correspond to the guide plate 1012. When the protrusions of the rotating cam 205 rotate to one side of the guide plate 1012, they can push the guide plate 1012 to swing.

[0025] In this embodiment, preferably, a driven gear 201 is fixedly provided at the top end of the rotating shaft 2, a motor frame 3 is fixedly provided on the other side of the top end of the can lid 101, a drive motor 301 is fixedly provided at the top end of the motor frame 3, and a drive gear 302 that meshes with the driven gear 201 is fixedly provided on the transmission shaft of the drive motor 301. The rotation of the transmission shaft of the drive motor 301 can drive the drive gear 302 to rotate, and the rotating shaft 2 is driven to rotate under the meshing cooperation of the drive gear 302 and the driven gear 201.

[0026] In this embodiment, preferably, the bottoms of the primary premixed shear chamber 104, the secondary convection variable diameter chamber 107, and the tertiary oscillating homogenizing chamber 1010 are all set in a conical shape, so that the primary premixed shear chamber 104, the secondary convection variable diameter chamber 107, and the tertiary oscillating homogenizing chamber 1010 are interconnected, and the conical bottom setting is conducive to the downward discharge of materials.

[0027] During use, the composite carbon source components enter the tank 1 through the feeding pipe 102. The drive motor 301 is started, driving the drive gear 302 to rotate. Through gear meshing, the driven gear 201 and the rotating shaft 2 rotate synchronously. The rotating shaft 2 links the rotor disk 202, the stirring blade 204, and the rotating cam 205 to achieve a single-shaft drive three-stage mixing function. The high-speed rotating rotor disk 202 drives the fluid to move radially. Its edge shearing teeth 203 form a micro-gap with the edge of the discharge hole 106 of the stator ring 105. The fluid undergoes strong shearing, high-frequency impact, and cavitation effect within the gap. In response, high-viscosity components (such as molasses) are shredded, and solid and liquid particles are forcibly wetted; the initially mixed fluid is sprayed downward through the feed hole 106, forming turbulence and entering the secondary convection variable diameter cavity 107. The stirring blade 204 pushes the fluid into the variable diameter spiral guide channel 109 in the guide tube 108. The increased fluid pitch in the upper section with a large pitch leads to a decrease in flow velocity, generating vortex diffusion and reverse backflow, which enhances the macroscopic convection mass transfer of components with different densities. The reduced flow channel cross-sectional area in the lower section with a small pitch accelerates the fluid, applies appropriate shear force to break the laminar boundary layer, and eliminates local concentration differences. The rotating cam 205 at the bottom of the rotating shaft 2 rotates with the shaft, and its four protrusions periodically push the guide plate 1012. The guide plate 1012 swings around the connecting shaft 1013, compressing the torsion spring 1015 to store energy. When the cam protrusions rotate away, the torsion spring 1015 releases energy to drive the guide plate 1012 to reverse and reset. The guide plate 1012 swings back and forth to generate low-frequency pressure pulsation, which continuously disturbs the fluid micro-particles, thoroughly disperses the residual concentration gradient, and the mechanical oscillation promotes molecular diffusion, ultimately achieving full-domain molecular-level homogenization. The finished product is collected at the bottom of the conical cavity and discharged through the discharge pipe 1016.

[0028] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A multi-stage dynamic mixing reaction vessel with a composite carbon source, comprising a vessel body (1), characterized in that, The tank body (1) is provided with a first-stage premixed shearing chamber (104), a second-stage convection variable diameter chamber (107), and a third-stage oscillating homogenizing chamber (1010) from top to bottom. The top of the first-stage premixed shearing chamber (104) is fixedly provided with a stator ring (105), and the surface of the stator ring (105) is provided with a discharge hole (106). The interior of the second-stage convection variable diameter chamber (107) is fixedly provided with a guide tube (108), and the inner wall of the guide tube (108) is provided with a variable diameter spiral guide channel (109). The interior of the third-stage oscillating homogenizing chamber (1010) is provided with a reciprocating oscillating guide plate (1012). The middle part of the tank body (1) is provided with a rotating shaft (2), and the top of the rotating shaft (2) is fixedly provided with a rotor disk (202). The upper surface of the rotor disk (202) near the edge is provided with shearing teeth (203).

2. The multi-stage dynamic mixing reactor with composite carbon source according to claim 1, characterized in that: The top of the tank (1) is fixedly provided with a tank cover (101), and a feeding pipe (102) is fixedly provided on one side of the top of the tank cover (101). The middle part of the tank cover (101) is rotatably connected to the rotating shaft (2). The middle part of the bottom of the tank (1) is fixedly provided with a discharge pipe (1016). The bottom end of the discharge pipe (1016) is threaded with a sealing cap (1017). The bottom of the tank (1) is fixedly provided with a support leg (103).

3. The multi-stage dynamic mixing reactor with composite carbon source according to claim 1, characterized in that: The rotating shaft (2) is fixedly provided with a stirring blade (204) in the middle. The stirring blade (204) corresponds to the inner diameter of the guide tube (108), and the stirring blade (204) is set to be arc-shaped.

4. The multi-stage dynamic mixing reactor with composite carbon source according to claim 1, characterized in that: The inner wall of the three-stage oscillating homogenizing chamber (1010) is fixedly provided with four mounting seats (1011). The middle of the top of the guide plate (1012) is fixedly provided with a connecting shaft (1013) that is rotatably connected to the mounting seats (1011). The surface of the connecting shaft (1013) is fixedly provided with a mounting plate (1014). A torsion spring (1015) is provided between the mounting plate (1014) and the mounting seat (1011) and sleeved on the outside of the connecting shaft (1013).

5. The multi-stage dynamic mixing reactor with composite carbon source according to claim 1, characterized in that: The bottom end of the rotating shaft (2) is fixedly provided with a rotating cam (205), and the surface of the rotating cam (205) is provided with four protrusions, the positions of which correspond to the guide plate (1012).

6. The multi-stage dynamic mixing reactor with composite carbon source according to claim 2, characterized in that: The top of the rotating shaft (2) is fixedly provided with a driven gear (201), and the other side of the top of the can lid (101) is fixedly provided with a motor frame (3). The top of the motor frame (3) is fixedly provided with a drive motor (301), and the transmission shaft of the drive motor (301) is fixedly provided with a driving gear (302) that meshes with the driven gear (201).

7. The multi-stage dynamic mixing reactor with composite carbon source according to claim 1, characterized in that: The bottoms of the primary premixed shear chamber (104), the secondary convection variable diameter chamber (107), and the tertiary oscillating homogenizing chamber (1010) are all set in a conical shape, so that the primary premixed shear chamber (104), the secondary convection variable diameter chamber (107), and the tertiary oscillating homogenizing chamber (1010) are interconnected.

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