A batching tank with air flow disturbance anti-settling device

Abstract

The utility model discloses a kind of dosing tank with airflow disturbance anti-precipitation device, it is related to dosing tank technical field, including tank body, spiral coil pipe, targeting fluidization ring, gas path distribution assembly and gas circulation system.Spiral coil pipe is located at tank bottom, is the reducing pipe that pipe diameter is tapered from air inlet end to terminal, pipe wall is equipped with first air hole, can realize tank bottom global uniform distribution of gas.Targeting fluidization ring is ringed in discharge port upper side, pipe wall is equipped with second air hole, specially fluidizes discharge port deposit.Gas path distribution assembly is shunted to coil pipe and fluidization ring by three-way pipe fitting and two independent control valves, realizes subarea accurate control.Gas circulation system is backflowed to air inlet end after being handled by condenser, gas-liquid separator and circulating fan after tank top exhaust, forms closed loop, energy saving and maintains pressure balance.The utility model solves the problem that traditional airflow disturbance exists dead angle and discharges unevenly, realizes efficient, stable, energy-saving anti-precipitation and discharge.

Description

Technical Field

[0001] This utility model relates to the field of batching tank technology, and in particular to a batching tank with an airflow disturbance and anti-sedimentation device. Background Technology

[0002] In the chemical, pharmaceutical, and food industries, batching tanks are general-purpose equipment used for mixing, homogenizing, and temporarily storing materials. In actual production processes, for liquid-solid two-phase systems containing solid particles, these particles tend to settle due to gravity, forming hard precipitates at the bottom of the tank that are difficult to resuspend. This not only leads to material waste and cleaning difficulties but also results in uneven discharge concentration, severely affecting the batch stability and quality of the final product. Traditional methods for preventing sedimentation mainly rely on mechanical stirring, but mechanical stirring has dead zones and can damage shear-sensitive crystals or biological products. Furthermore, its complex shaft seal structure poses leakage risks and cleaning dead zones.

[0003] To overcome the shortcomings of mechanical stirring, existing technologies employ airflow disturbance to prevent sedimentation. For example, a simple annular or straight pipe is installed at the bottom of the tank, and gas is introduced into the pipe, using the rising motion of the bubbles to drive the liquid flow. This method provides a non-mechanical mixing mechanism to some extent. However, such conventional airflow disturbance schemes still have significant drawbacks: First, due to uneven pressure distribution in the pipeline, simple gas distribution pipes cannot create a uniform and effective flow field across the entire tank bottom, especially in the area far from the inlet, resulting in incomplete sedimentation prevention and the existence of dead zones. Second, the airflow is not highly targeted at the material with the highest concentration deposited at the outlet, failing to guarantee the uniformity of the discharge concentration. Finally, continuous aeration leads to increased pressure inside the tank, posing a safety hazard and wasting gas resources.

[0004] Therefore, there is an urgent need in this field for a batching tank anti-sedimentation device that can achieve uniform disturbance of the entire tank bottom, accurately ensure the discharge concentration, and efficiently utilize gas. Utility Model Content

[0005] Purpose of the Invention: The purpose of this invention is to provide a batching tank with an airflow disturbance and anti-sedimentation device, which solves the problems of uneven airflow distribution at the bottom of the tank, resulting in dead zones for anti-sedimentation, and material deposition in the discharge port area leading to unstable discharge concentration in existing technologies. It achieves uniform air distribution throughout the tank bottom using a variable-diameter spiral coil, ensures uniform discharge concentration using independent targeted fluidizing rings, and integrates a gas circulation system to achieve energy saving and pressure balance, ultimately achieving efficient, stable, and energy-saving anti-sedimentation and discharge effects.

[0006] Technical solution:

[0007] A batching tank with an airflow disturbance and anti-sedimentation device includes a tank body, a discharge port, and a feed port, and further includes:

[0008] A spiral coil is fixedly installed at the bottom of the tank. The air inlet of the spiral coil is inserted from the bottom of the tank. The spiral coil is a variable diameter pipe with the diameter gradually or continuously decreasing from the air inlet to its end. Several first ventilation micro-holes are opened on the pipe wall of the spiral coil.

[0009] A targeted fluidizing ring is disposed above the discharge port, and a number of second ventilation micropores are formed on the ring wall of the targeted fluidizing ring.

[0010] An air distribution assembly includes a three-way fitting, the inlet of which is connected to an air intake manifold, its first outlet is connected to the air intake end of the spiral coil, and its second outlet is connected to the target fluidizing ring via a branch pipe.

[0011] Furthermore, a first control valve is provided on the pipeline leading from the tee fitting to the spiral coil, and a second control valve is provided on the branch pipeline leading from the tee fitting to the targeted fluidizing ring. Both the first and second control valves are located outside the tank body.

[0012] Furthermore, the first control valve and the second control valve are independently controlled regulating valves.

[0013] Furthermore, it also includes a gas circulation system, which includes an exhaust port located on the top of the tank, an exhaust pipe connected to the exhaust port and the main intake pipe, a gas-liquid separator and a circulating fan located on the exhaust pipe.

[0014] Furthermore, a condenser is connected in series on the exhaust pipe at the front end of the gas-liquid separator on the intake side.

[0015] Furthermore, the intake manifold is connected to both the air source and the cleaning fluid source simultaneously via a three-way reversing valve.

[0016] Furthermore, the bottom of the tank gradually narrows from bottom to top, and the outer edge contour of the spiral coil matches the inner wall contour of the tank bottom.

[0017] Furthermore, both the spiral coil and the targeted fluidizing ring are fixed to the bottom of the tank by a support plate.

[0018] Beneficial effects:

[0019] 1. Employing a unique variable-diameter spiral coil design, the coil's diameter gradually or continuously decreases from the inlet to the outlet. This structure automatically balances the pressure loss of gas in the long-flow coil, ensuring uniform gas flow from start to finish and effectively eliminating the dead zones caused by weak gas flow at the end of traditional gas distribution pipes. Simultaneously, the spiral structure itself has a large coverage area, adapting to the shape of the tank bottom, thus achieving comprehensive, gentle, and efficient airflow coverage over the entire tank bottom, especially in easily deposited edge areas.

[0020] 2. A targeted fluidizing ring is installed above the discharge port, which can be connected in parallel with the spiral coil for air supply. During discharge, the fluidizing ring can be activated alone or intensified to form an upward dense air curtain, specifically targeting the high-concentration materials that are most prone to deposition at the discharge port, thereby ensuring extremely uniform concentration from the beginning to the end of discharge and greatly improving batch consistency of the product.

[0021] 3. By integrating a gas circulation system, the gas discharged from the top of the tank is processed and pumped back into the system, forming a closed-loop circuit. This not only maintains the pressure balance inside the tank and ensures safety, but also significantly reduces the consumption of external gas sources, achieving energy conservation and emission reduction. At the same time, it can also recover volatile materials, meeting environmental protection requirements. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is the cross-sectional structure of this utility model. Figure 1 ;

[0024] Figure 3 This is the cross-sectional structure of this utility model. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the spiral coil and the targeted fluidizing ring of this utility model. Detailed Implementation

[0026] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1-4 As shown, a batching tank with an airflow disturbance and anti-sedimentation device includes a tank body 1, a discharge port 11, and a feed port 12, and further includes:

[0029] A spiral coil 2 is fixedly installed at the bottom of the tank body 1. The air inlet of the spiral coil 2 enters from the bottom of the tank body 1, and the spiral coil 2 is a variable diameter pipe with a gradually or continuously decreasing diameter from the air inlet to its end. Several first venting micro-holes are formed on the wall of the spiral coil 2. Utilizing the principle that the pressure loss of fluid flowing in a pipeline is related to the pipe diameter, the dynamic pressure balance at various points in the pipeline is maintained by gradually reducing the pipe diameter, thereby ensuring that the gas can be uniformly released from each of the first venting micro-holes from the beginning to the end of the coil, effectively solving the problem of weak gas output at the end of long-distance gas distribution pipelines. The first venting micro-holes on the coil are used to disperse the gas into fine bubbles, increasing the gas-liquid contact area. The spiral coil 2 is fixed to the bottom of the tank by a support plate 5 to ensure its structural stability.

[0030] A targeted fluidizing ring 3 is positioned above the discharge port 11. The ring wall of the targeted fluidizing ring 3 has several second venting micropores. As an independent, dedicated fluidizing device, it is specifically designed for high-concentration materials that are most prone to deposition in the discharge port area. When gas is introduced from this point, a dense, upward-flowing microbubble "curtain" is formed above the discharge port. The principle is to utilize the lift and disturbance force of the bubbles to instantly lift and fluidize the deposited solid particles, allowing them to re-enter the main liquid flow. This ensures that the concentration of the material discharged from this point remains uniform throughout the discharge process.

[0031] An air distribution assembly includes a three-way fitting 41, the inlet of which is connected to an air intake manifold 42, its first outlet is connected to the air intake end of the spiral coil 2, and its second outlet is connected to the target fluidizing ring 3 through a branch pipe.

[0032] A first control valve 43 is provided on the pipeline from the tee fitting 41 to the spiral coil 2, and a second control valve 44 is provided on the branch pipeline from the tee fitting 41 to the targeted fluidizing ring 3. Both the first control valve 43 and the second control valve 44 are located outside the tank body 1.

[0033] The first control valve 43 and the second control valve 44 are independently controlled regulating valves (such as electromagnetic regulating valves or pneumatic regulating valves). Through these two independent valves, the operator can flexibly allocate the total air volume to achieve time-sharing, pressure-sharing, and component-sharing control of "global anti-sedimentation (spiral coil)" and "local strong fluidization (targeted fluidizing ring)". For example, during the settling period, only the spiral coil 2 is turned on for low-frequency pulse anti-sedimentation; before discharge, the air volume of the spiral coil 2 is turned off or reduced, while the air volume of the targeted fluidizing ring 3 is increased to achieve energy saving and maximize efficiency.

[0034] It also includes a gas circulation system, which includes an exhaust port 6 located at the top of the tank 1, an exhaust pipe 7 connected to the exhaust port 6 and the main air inlet pipe 42, a gas-liquid separator 71 and a circulating fan 72 located on the exhaust pipe 7.

[0035] A condenser 73 is also connected in series at the front end of the gas-liquid separator 71 on the exhaust pipe 7. The steam-rich exhaust gas from the top of the tank first enters the condenser 73, where most of the condensable vapors (such as water vapor and solvent vapors) are liquefied into droplets by cooling, completing the primary separation and cooling. Subsequently, the gas carrying the remaining mist droplets enters the gas-liquid separator 71, where the liquid components are completely removed through centrifugation and collision, resulting in dry and clean gas. Finally, the gas is pumped back into the main intake pipe 42 by the circulating fan 72 (which draws in dry gas at this time and is effectively protected) as a power source, realizing recycling. Its function is to maintain stable pressure inside the tank, significantly reduce the consumption of fresh gas (especially when using expensive inert gases), and recover volatile materials.

[0036] The condenser 73 adopts the principle of indirect heat exchange, through which the refrigerant (such as cooling water) exchanges heat with the hot gas in a shell-and-tube or plate heat exchanger, causing the condensable vapors (such as water vapor and solvent vapor) in the gas to undergo phase change and liquefy into droplets, thereby achieving gas cooling and primary dehumidification.

[0037] The gas-liquid separator 71 utilizes mature centrifugal separation (such as cyclone separators) or inertial collision principles (such as wire mesh demisters) to make the condensed gas-liquid mixture rotate at high speed or change its flow direction. Due to its high density and inertia, the liquid droplets are thrown to the wall of the device and collected and discharged, thereby completely removing liquid components from the gas and obtaining dry and clean gas.

[0038] The circulating fan 72, as the power heart of the system, performs work on the gas through impeller rotation, increases the gas pressure, overcomes the resistance of subsequent pipelines and components, and pumps the purified dry gas back into the system.

[0039] The main air inlet pipe 42 is connected to both the air source and the cleaning fluid source via a three-way reversing valve 45. During production, the valve connects to the air source, and the system performs the ventilation and anti-sedimentation function. When cleaning is required, the valve switches to connect to the CIP (clean in place) cleaning fluid source. At this time, the entire spiral coil 2 and the targeted fluidizing ring 3 become a fixed, bottom-up spray cleaning network, which, together with the rotating spray ball at the top (if present), powerfully flushes the tank bottom and the coil itself without any blind spots.

[0040] The bottom of the tank 1 gradually tapers downwards, and the outer edge contour of the spiral coil 2 matches the inner wall contour of the tank bottom of the tank 1. The spiral coil 2 and the targeting fluidizing ring 3 are both fixed to the bottom of the tank 1 by a support plate 5.

[0041] In production and temporary storage mode, external gas (or recirculated gas) is distributed via the main inlet pipe 42 and the three-way fitting 41, and is independently controlled by the first and second control valves (43, 44), entering the spiral coil 2 and the targeted fluidizing ring 3 respectively. The uniform bubbles released by the spiral coil 2 provide gentle, all-around, and dead-angle-free agitation to the bottom of the tank, preventing solid particles from settling. At the same time, the gas discharged from the top of the tank is treated by the gas circulation system (condensation-separation-pressurization) and reused, forming an energy-saving closed loop.

[0042] In discharge mode, the control system can adjust the valve strategy to strengthen or individually open the airflow of the targeted fluidizing ring 3, precisely fluidize the sediment at the discharge port, and ensure that the discharge concentration is highly uniform from beginning to end.

[0043] In cleaning mode, operate the three-way reversing valve 45 to introduce cleaning fluid into the system. The cleaning fluid is sprayed at high speed from the micropores of the spiral coil 2 and the targeted fluidizing ring 3, powerfully flushing the bottom of the tank and completing efficient and thorough online cleaning.

[0044] The embodiments described above are merely illustrative of certain implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A batching tank with an airflow disturbance and anti-sedimentation device, comprising a tank body (1), a discharge port (11), and a feed port (12), characterized in that, Also includes: A spiral coil (2) is fixedly installed at the bottom of the tank (1). The air inlet end of the spiral coil (2) is inserted from the bottom of the tank (1). The spiral coil (2) is a variable diameter pipe with the diameter gradually or continuously decreasing from the air inlet end to its end. Several first ventilation micro-holes are opened on the pipe wall of the spiral coil (2). A targeted fluidizing ring (3) is arranged above the discharge port (11), and a number of second ventilation micropores are opened on the ring tube wall of the targeted fluidizing ring (3); An air distribution assembly includes a three-way fitting (41), the inlet of which is connected to an air intake manifold (42), its first outlet is connected to the air intake end of the spiral coil (2), and its second outlet is connected to the target fluidizing ring (3) through a branch pipe.

2. The batching tank with airflow disturbance and anti-sedimentation device according to claim 1, characterized in that, A first control valve (43) is provided on the pipeline from the tee fitting (41) to the spiral coil (2), and a second control valve (44) is provided on the branch pipeline from the tee fitting (41) to the targeted fluidizing ring (3). Both the first control valve (43) and the second control valve (44) are located outside the tank body (1).

3. A batching tank with an airflow disturbance and anti-sedimentation device according to claim 2, characterized in that, The first control valve (43) and the second control valve (44) are independently controlled regulating valves.

4. A batching tank with an airflow disturbance and anti-sedimentation device according to claim 1, characterized in that, It also includes a gas circulation system, which includes an exhaust port (6) located on the top of the tank (1), an exhaust pipe (7) connected to the exhaust port (6) and the main intake pipe (42), a gas-liquid separator (71) and a circulating fan (72) located on the exhaust pipe (7).

5. A batching tank with an airflow disturbance and anti-sedimentation device according to claim 4, characterized in that, A condenser (73) is also connected in series on the front end of the gas-liquid separator (71) on the front end of the exhaust pipe (7).

6. A batching tank with an airflow disturbance and anti-sedimentation device according to claim 1, characterized in that, The intake manifold (42) is connected to both the air source and the cleaning fluid source via a three-way reversing valve (45).

7. A batching tank with an airflow disturbance and anti-sedimentation device according to claim 1, characterized in that, The bottom of the tank (1) gradually narrows from bottom to bottom, and the outer contour of the spiral coil (2) is adapted to the inner wall contour of the bottom of the tank (1).

8. A batching tank with an airflow disturbance and anti-sedimentation device according to claim 1, characterized in that, The spiral coil (2) and the targeted fluidizing ring (3) are both fixed to the bottom of the tank (1) by a support plate (5).

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