Double-jet powder feeding device
By designing a dual-jet powder dosing device, the problems of gas interference and blockage in water treatment of powdered agents are solved, achieving stable and efficient continuous dosing and improving the reaction efficiency and dosing accuracy of powdered agents.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-05
- Publication Date
- 2026-04-14
AI Technical Summary
In existing water treatment technologies, the continuous addition of powdered agents suffers from gas interference, blockage, and backflow problems, resulting in unstable addition and low efficiency, making it difficult to achieve efficient continuous addition.
The dual-jet powder dosing device includes a gas-liquid separation buffer tank, first and second jet mixing mechanisms, and an automatic liquid level adjustment and control mechanism. Through gas-liquid separation, preliminary and secondary mixing, the powder reagent is fully integrated with water and pressurized dosing is performed to prevent gas interference and blockage.
It achieves rapid and uniform diffusion of powdered agents, improves reaction efficiency, avoids waste of drug efficacy and local non-compliance, ensures stable and efficient continuous dosing, and prevents blockage and backflow.
Smart Images
Figure CN121850130A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water treatment technology, and in particular to a dual-jet powder dosing device. Background Technology
[0002] In water treatment processes, the precise, efficient, and continuous addition of powdered agents (such as powdered activated carbon) is a key step. Existing technologies are mainly divided into two modes: wet dosing and dry dosing.
[0003] Wet dosing requires mixing the powder and water into a slurry in a mixing tank before adding the powder. Its disadvantages are that it cannot be operated continuously, and the slurry needs to be prepared again after each dosing, resulting in low efficiency and low automation.
[0004] Dry dosing primarily utilizes the negative pressure generated by high-speed water flow to directly extract and jet the powder and entrained air to the target point, achieving powder-water mixing and dosing. While this method can achieve continuous dosing, in practical applications, the powder often contains air during transport, forming a three-phase mixture of powder, water, and gas. The gas generates resistance in the pipeline, reducing jetting efficiency and leading to unstable dosing rates. Furthermore, the gas and moist powder can easily form air blockages or adhere to the pipe walls, causing pipe blockage. More seriously, when the system pressure fluctuates, backflow of the medium (water-powder mixture) can easily occur. The backflowed mixture deposits and caking at the dry feed inlet, causing inlet blockage and requiring frequent shutdowns for cleaning, affecting production continuity and stability.
[0005] In response to the aforementioned technologies, there is an urgent need for a powder feeding device that can effectively solve gas interference, prevent blockage and backflow, and achieve stable, efficient and continuous feeding. Summary of the Invention
[0006] In order to overcome the shortcomings of the prior art, this application provides a dual-jet powder feeding device.
[0007] The dual-jet powder feeding device provided in this application adopts the following technical solution: A dual-jet powder dispensing device includes a gas-liquid separation buffer tank for gas-liquid separation of a mixed slurry, the gas-liquid separation buffer tank being provided with an exhaust port, a first jet mixing mechanism for preliminary mixing of powder with a first stream of water, a water supply mechanism for mixing water, and a second mixing component connected at one end to the outlet of the gas-liquid separation buffer tank. The first jet mixing mechanism includes a first mixing component connected at one end to the gas-liquid separation buffer tank and a feeding component for supplying powder to the first mixing component. The other ends of the first mixing component and the second mixing component are both connected to the outlet of the water supply mechanism. The second mixing component can perform secondary mixing and pressurized dispensing of the buffered and separated liquid-solid mixture with a second stream of water.
[0008] By adopting the above technical solution, the gas-liquid separation buffer tank is equipped with an exhaust port. One end of the first mixing component is connected to the gas-liquid separation buffer tank, and the other end of the first mixing component is connected to the outlet of the water supply mechanism. The feeding component supplies powder to the first mixing component. One end of the second mixing component is connected to the outlet of the gas-liquid separation buffer tank, and the other end of the second mixing component is connected to the outlet of the water supply mechanism. During the addition of powdered agents, the powdered agents are projected into the first mixing component by the feeding component, realizing the initial fusion of powdered agents and water, and solving gas interference. Subsequently, the second mixing component mixes the buffered and separated liquid-solid mixture with the second stream of water and pressurizes it before dispensing, further breaking the local concentration difference, allowing the powdered agents to quickly and evenly diffuse throughout the water tank, greatly improving the reaction efficiency of the powdered agents, avoiding problems such as waste of powdered agent efficacy and substandard local water treatment caused by insufficient mixing, shortening the onset time of the powdered agents, and effectively solving the problem of gas interference, preventing blockage and backflow, and achieving stable, efficient and continuous addition.
[0009] Preferably, the gas-liquid separation buffer tank is provided with an automatic liquid level adjustment mechanism for adjusting the outflow rate of the water according to the liquid level in the gas-liquid separation buffer tank. The automatic liquid level adjustment mechanism includes a float ball disposed in the gas-liquid separation buffer tank and a first flow limiting valve disposed on the water outlet pipe of the gas-liquid separation buffer tank. The float ball is mechanically linked to the valve core of the first flow limiting valve.
[0010] By adopting the above technical solution, a float is installed inside the gas-liquid separation buffer tank, and a first flow limiting valve is installed on the outlet pipe of the gas-liquid separation buffer tank. The float and the valve core of the first flow limiting valve are mechanically linked. In actual use, when the liquid level in the gas-liquid separation buffer tank rises, the float rises, driving the opening of the first flow limiting valve to increase the water output. When the liquid level in the gas-liquid separation buffer tank drops, the float falls, driving the opening of the first flow limiting valve to decrease the water output. The water output can be dynamically and automatically adjusted according to the water level in the tank, so that when the water level is too high, the water output is automatically increased to avoid overflow, and when the water level is too low, the water output is reduced to prevent flow interruption. This achieves a precise balance of water flow, which not only ensures a stable water supply for subsequent treatment processes, but also improves the gas-liquid-solid separation effect in the tank, and indirectly ensures the accuracy of powder reagent dosing and water treatment effect.
[0011] Preferably, the water supply mechanism includes a water pipe connected to a water source, a control valve disposed on the water pipe, a booster pump connected to the water pipe, and a water outlet pipe connected to the booster pump. The first mixing component is connected to the water outlet pipe through a first connecting pipe, and the second mixing component is connected to the water outlet pipe through a second connecting pipe.
[0012] By adopting the above technical solution, the water pipe is connected to the water source, the control valve is set on the water pipe, the pressure pump is connected to the water pipe, the outlet pipe is connected to the pressure pump, the first mixing component is connected to the outlet pipe through the first connecting pipe, and the second mixing component is connected to the outlet pipe through the second connecting pipe. During the mixing of powdered agent and water, the control valve is opened to connect the water source and the water pipe. After being pressurized by the pressure pump, the water flows to the first mixing component through the first connecting pipe. After being pressurized by the pressure pump, the water flows to the second mixing component through the second connecting pipe. This facilitates the full mixing of powdered agent and water, and also facilitates the discharge of the agent mixture.
[0013] Preferably, it further includes a control mechanism, which includes a first detection element for detecting the flow rate of the first flow limiting valve, a second flow limiting valve disposed on the second connecting pipe, a second detection element for detecting the flow rate of the second flow limiting valve, and a control unit for controlling the second flow limiting valve. The second detection element is disposed on the second connecting pipe, and the control unit can receive data from the first detection element and the second detection element.
[0014] By adopting the above technical solution, the first detection element detects the flow rate of the first flow limiting valve, the second flow limiting valve is installed on the second connecting pipe, and the second detection element is used to detect the flow rate of the second flow limiting valve. During actual use of the device, the control unit receives data from the first and second detection elements. When the first detection element detects an increase or decrease in the flow rate of the first flow limiting valve, it feeds the data back to the control unit. The control unit controls the inlet water volume of the second connecting pipe by controlling the second flow limiting valve, and feeds back the flow rate data of the second connecting pipe through the second detection element, thereby facilitating real-time control of the concentration of the reagent mixture according to the actual production flow rate.
[0015] Preferably, the feeding assembly includes a hopper for holding powder and an expanded feed pipe with one end connected to the outlet of the hopper. The other end of the expanded feed pipe is connected to the powder inlet of the first mixing component. The flow cross-sectional area of at least a partial section of the expanded feed pipe is configured to be larger than the cross-sectional area of the outlet pipe of the hopper, in order to accommodate the backflow medium and promote gas-liquid separation.
[0016] By adopting the above technical solution, the hopper holds the powder, one end of the expansion feed pipe is connected to the outlet of the hopper, and the other end of the expansion feed pipe is connected to the powder inlet of the first mixing component. The flow cross-sectional area of at least a partial section of the expansion feed pipe is configured to be larger than the cross-sectional area of the outlet pipe of the hopper, so as to facilitate the containment of the backflow medium and promote gas-liquid separation.
[0017] Preferably, the inner wall of the expansion feed pipe is provided with a flow-blocking element, which prevents the backflow medium from rising to the discharge port of the hopper, and the bottom of the flow-blocking element is provided with a tip that can puncture air bubbles in the drug mixture.
[0018] By adopting the above technical solution, a flow-blocking component is installed on the inner wall of the expanded feed pipe. The flow-blocking component prevents the backflow medium from rising to the discharge port of the hopper. The bottom of the flow-blocking component is equipped with a tip that can puncture air bubbles in the drug mixture, further reducing the possibility of air bubbles appearing in the drug mixture.
[0019] Preferably, the inner wall of the expanded feed pipe is equipped with a water level sensor, the control unit can receive data from the sensor, and the discharge port of the hopper is equipped with an electric valve to control whether to discharge material, the control unit can control the start and stop of the electric valve.
[0020] By adopting the above technical solution, the sensing element is set on the inner wall of the expanded feed pipe. The control unit can receive the data from the sensing element. An electric valve is set at the discharge port of the hopper to control whether to discharge. In actual application, when the sensing element detects water, it indicates that the powder and water have been mixed for the first time and are close to the discharge port of the hopper. The sensing element transmits the signal data to the control unit, which controls the opening and closing of the electric valve to avoid the powder and water from flowing back into the hopper and improve the stability of the hopper's feeding.
[0021] Preferably, the expanded feed pipe is equipped with an airflow disturbance device, which is signal-connected to the sensing element. The airflow disturbance device includes at least one set of miniature air nozzles, which are connected to an external air source through air pipes.
[0022] By adopting the above technical solution, an airflow disturbance device is installed inside the expanded feed pipe. The airflow disturbance device is connected to the sensor and includes at least one set of miniature air nozzles. The miniature air nozzles are connected to an external air source through an air pipe. When the sensor detects an abnormal water level or the control unit determines that there is a risk of blockage, the airflow disturbance device can be activated to spray compressed air into the pipe, forming airflow disturbance, which disrupts the bonding structure between the powder and moisture, prevents the powder from depositing on the inner wall of the pipe, and achieves an active anti-blockage function.
[0023] Preferably, the control mechanism includes a third flow limiting valve disposed on the first connecting pipe and a third detection element for detecting the flow rate of the third flow limiting valve. The control unit can receive data from the third detection element and can control the third flow limiting valve.
[0024] By adopting the above technical solution, the third flow limiting valve is set on the first connecting pipe. During the actual use of the device, the third detection element detects the flow rate of the third flow limiting valve. When the sensing element detects water, the control unit adjusts the flow rate of the first connecting pipe by controlling the third flow limiting valve, thereby reducing the water flow into the second mixing element and effectively preventing the backflow of the powdered agent into the hopper after the first mixing of the powdered agent and the water.
[0025] Preferably, the exhaust port is connected to a dust removal exhaust valve.
[0026] By adopting the above technical solution, the exhaust port is connected to a dust removal exhaust valve, which can promptly discharge the gas and dust generated during the mixing process in the gas-liquid separation buffer tank. This reduces the pressure inside the gas-liquid separation buffer tank, reduces the wear and tear on the internal components of the gas-liquid separation buffer tank caused by dust adhesion, prevents dust from entering subsequent processes with the effluent and causing secondary pollution, and protects the sealing performance of the device, thus extending the service life of the equipment.
[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. The gas-liquid separation buffer tank is equipped with an exhaust port. One end of the first mixing component is connected to the gas-liquid separation buffer tank, and the other end of the first mixing component is connected to the outlet of the water supply mechanism. The feeding component supplies powder to the first mixing component. One end of the second mixing component is connected to the outlet of the gas-liquid separation buffer tank, and the other end of the second mixing component is connected to the outlet of the water supply mechanism. During the addition of powdered agents, the powdered agents are projected into the first mixing component by the feeding component to achieve initial fusion of the powdered agents with the water. Subsequently, the second mixing component mixes the buffered and separated liquid-solid mixture with the second water stream for a second time and pressurizes it for release. This further breaks down local concentration differences, allowing the agent to spread quickly and evenly throughout the water tank, significantly improving the agent reaction efficiency, avoiding problems such as waste of agent efficacy and substandard local water treatment caused by insufficient mixing, shortening the agent's onset time, and effectively solving the problem of gas interference, preventing blockage and backflow, and achieving stable, efficient and continuous addition. 2. A float ball is installed inside the gas-liquid separation buffer tank, and a first flow limiting valve is installed on the outlet pipe of the gas-liquid separation buffer tank. The float ball and the valve core of the first flow limiting valve are mechanically linked. In actual use, when the liquid level in the gas-liquid separation buffer tank rises, the float ball rises, driving the opening of the first flow limiting valve to increase the water output. When the liquid level in the gas-liquid separation buffer tank drops, the float ball falls, driving the opening of the first flow limiting valve to decrease the water output. It can dynamically and automatically adjust the water output according to the water level in the tank, so that when the water level is too high, the water output will be automatically increased to avoid overflow, and when the water level is too low, the water output will be reduced to prevent flow interruption. This achieves a precise balance of water output, which not only ensures a stable water supply for subsequent treatment processes, but also improves the gas-liquid-solid separation effect in the tank, and indirectly ensures the accuracy of reagent dosing and water treatment effect. 3. The first detection element detects the flow rate of the first flow limiting valve. The second flow limiting valve is installed on the second connecting pipe. The second detection element is used to detect the flow rate of the second flow limiting valve. During actual use of the device, the control unit receives data from the first and second detection elements. When the first detection element detects an increase or decrease in the flow rate of the first flow limiting valve, it feeds the data back to the control unit. The control unit controls the inlet water volume of the second connecting pipe by controlling the second flow limiting valve and feeds back the flow rate data of the second connecting pipe through the second detection element. This facilitates real-time control of the concentration of the reagent mixture based on the actual production flow rate. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of a dual-jet powder feeding device according to an embodiment of this application.
[0029] Figure 2 This is a schematic diagram of the internal structure of the gas-liquid separation buffer tank in an embodiment of this application.
[0030] Figure 3 This is a schematic diagram of the internal structure of the flow-blocking element in the embodiments of this application.
[0031] Explanation of reference numerals in the attached figures: 1. Gas-liquid separation buffer tank; 11. Exhaust port; 12. Gas return pipe; 2. First jet mixing mechanism; 21. First mixing component; 22. Feeding assembly; 221. Hopper; 222. Expanded feed pipe; 223. Flow obstruction component; 224. Sensing component; 23. First connecting pipe; 3. Water supply mechanism; 31. Water pipe; 32. Control valve; 33. Booster pump; 34. Water outlet pipe; 4. Second mixing component; 5. Second connecting pipe; 6. Automatic liquid level adjustment mechanism; 61. Float; 62. First flow limiting valve; 7. Control mechanism; 71. First detection component; 72. Second flow limiting valve; 73. Second detection component; 74. Third flow limiting valve; 75. Third detection component. Detailed Implementation
[0032] The present application will be further described in detail below with reference to the accompanying drawings.
[0033] This application discloses a dual-jet powder feeding device. (Refer to...) Figure 1 and Figure 2 As shown, the dual-jet powder dosing device includes a gas-liquid separation buffer tank 1, a first jet mixing mechanism 2, a water supply mechanism 3, a second mixing component 4, a second connecting pipe 5, an automatic liquid level adjustment mechanism 6, and a control mechanism 7.
[0034] Reference Figure 1As shown, the gas-liquid separation buffer tank 1 is horizontally arranged. The water supply mechanism 3 includes a water pipe 31, a control valve 32, a pressure pump 33, and a water outlet pipe 34. The water pipe 31 is connected to an external water source. The control valve 32 is installed on the water pipe 31. The pressure pump 33 is connected to the water pipe 31. The water outlet pipe 34 is connected to the pressure pump 33. The water pipe 31, the control valve 32, the pressure pump 33, and the water outlet pipe 34 are all located next to the gas-liquid separation buffer tank 1.
[0035] Reference Figure 1 and Figure 3 As shown, the first jet mixing mechanism 2 includes a first mixing component 21, a feeding assembly 22, and a first connecting pipe 23. The first mixing component 21 is disposed next to the gas-liquid separation buffer tank 1. One end of the first mixing component 21 is connected to the gas-liquid separation buffer tank 1, and the other end of the first mixing component 21 is connected to the water outlet pipe 34 through the first connecting pipe 23. The feeding assembly 22 includes a hopper 221, an expanded feed pipe 222, a flow obstruction component 223, and a sensing component 224. The hopper 221 is disposed above the first mixing component 21. In this embodiment, the first mixing component 21 is a low-pressure mixing water jet.
[0036] Reference Figure 1 and Figure 3 As shown, the expansion-type feed pipe 222 is disposed between the hopper 221 and the first mixing component 21. One end of the expansion-type feed pipe 222 is connected to the discharge port of the hopper 221, and the other end of the expansion-type feed pipe 222 is connected to the powder inlet end of the first mixing component 21. One end of the second mixing component 4 is connected to the water outlet pipe 34 through the second connecting pipe 5, and the other end of the second mixing component 4 is connected to the water outlet of the gas-liquid separation buffer tank 1. The discharge port of the second mixing component 4 is provided with a discharge pipe. In this embodiment, the second mixing component 4 is a high-pressure mixing water jet.
[0037] Reference Figure 1 and Figure 3 As shown, during the mixing of powdered reagent and water, the control valve 32 is opened to connect the water source and the water pipe 31. After being pressurized by the pressure pump 33, the water flows to the first mixing unit 21 through the first connecting pipe 23. The hopper 221 feeds the powdered reagent into the first mixing unit 21 through the expansion feed pipe 222, so as to achieve the initial fusion of powdered reagent and water and solve the gas interference. Then the reagent mixture flows into the gas-liquid separation buffer tank 1.
[0038] Reference Figure 1As shown, the gas-liquid separation buffer tank 1 is equipped with an exhaust port 11, which is connected to a dust removal exhaust valve. This allows for the timely discharge of gas and dust generated during the mixing process inside the gas-liquid separation buffer tank 1. This reduces the pressure inside the gas-liquid separation buffer tank 1, minimizes the wear and tear on the internal components caused by dust adhesion, prevents dust from entering subsequent processes with the effluent and causing secondary pollution, protects the sealing performance of the device, and extends the service life of the equipment.
[0039] Reference Figure 1 As shown, a gas return pipe 12 is provided on the exhaust port 11. The gas return pipe 12 is connected to the expansion feed pipe 222. The gas return pipe 12 helps to discharge the gas in the expansion feed pipe 222. A gas-liquid separation baffle is provided in the gas-liquid separation buffer tank 1, which helps to separate the gas and reduce the possible impact of gas emission on the outside world.
[0040] Reference Figure 1 As shown, the second mixing unit 4 then mixes the buffered and separated liquid-solid mixture with the second water stream and pressurizes it before dispensing. Through secondary flow design, the local concentration difference is further broken, allowing the powdered agent to spread quickly and evenly throughout the water tank, greatly improving the reaction efficiency of the powdered agent. This avoids problems such as waste of powdered agent efficacy and substandard local water treatment caused by insufficient mixing. At the same time, it shortens the onset time of the powdered agent and can effectively solve the problem of gas interference, prevent blockage and backflow, and achieve stable, efficient and continuous dosing.
[0041] Reference Figure 1 and Figure 3 As shown, the cross-sectional area of at least a partial section of the expanded feed pipe 222 is configured to be larger than the cross-sectional area of the outlet pipe of the hopper 221, so as to facilitate the containment of backflow medium and promote gas-liquid separation. There are multiple flow-blocking elements 223, which are divided into 3 groups. Each group of flow-blocking elements 223 is evenly distributed at equal distances along the circumferential direction of the inner wall of the expanded feed pipe 222.
[0042] Reference Figure 1 and Figure 3 As shown, the flow obstruction element 223 prevents the backflow medium from rising to the discharge port of the hopper 221, preventing the possibility of the drug mixture coming into contact with the powdered drug at the discharge port of the hopper 221 and causing blockage. The bottom of the flow obstruction element 223 is provided with a tip that can puncture the air bubbles in the drug mixture, further reducing the possibility of air bubbles in the drug mixture, thereby solving the problem of gas interference.
[0043] Reference Figure 1 and Figure 2As shown, the automatic liquid level adjustment mechanism 6 includes a float 61 and a first flow limiting valve 62. The float 61 is installed inside the gas-liquid separation buffer tank 1, and the first flow limiting valve 62 is installed on the water outlet pipe of the gas-liquid separation buffer tank 1. The float 61 and the valve core of the first flow limiting valve 62 are mechanically linked. In actual use, when the liquid level in the gas-liquid separation buffer tank 1 rises, the float 61 floats up, driving the opening of the first flow limiting valve 62 to increase the water output. When the liquid level in the gas-liquid separation buffer tank 1 falls, the float 61 falls down, driving the opening of the first flow limiting valve 62 to decrease the water output. It can dynamically and automatically adjust the water output according to the water level in the tank, so that when the water level is too high, the water output will be increased to prevent overflow, and when the water level is too low, the water output will be reduced to prevent flow interruption. This achieves a precise balance of water output, which not only ensures a stable water supply for subsequent treatment processes, but also improves the gas-liquid-solid separation effect in the tank, and indirectly ensures the accuracy of powder agent dosing and water treatment effect. An airflow disturbance device is installed inside the expansion-type feed pipe 222. The airflow disturbance device is connected to the sensor 224. In this embodiment, the airflow disturbance device preferably consists of a set of miniature air nozzles. The set of miniature air nozzles has 6 miniature air nozzles, which are evenly distributed along the circumferential direction of the inner wall of the expansion-type feed pipe 222. The miniature nozzle is connected to an external air source via an air tube. When the sensor 224 detects an abnormal water level or the control unit determines that there is a risk of blockage, the airflow disturbance device can be activated to inject compressed air into the pipeline, forming airflow disturbance, which disrupts the bonding structure between the powder and moisture, prevents the powder from depositing on the inner wall of the pipeline, and achieves an active anti-blockage function.
[0044] Reference Figure 1 As shown, the control mechanism 7 includes a first detection element 71, a second flow limiting valve 72, a second detection element 73, a control unit, a third flow limiting valve 74, a third detection element 75, a fuzzy control algorithm module, and a remote operation and maintenance module. The first detection element 71 is installed on the outlet pipe of the gas-liquid separation buffer tank 1 and is used to detect the flow rate of the first flow limiting valve 62. The second flow limiting valve 72 is installed on the second connecting pipe 5, and the second detection element 73 is installed on the second connecting pipe 5 and is used to detect the flow rate of the second flow limiting valve 72.
[0045] Reference Figure 1 As shown, during actual use of the device, the control unit receives data from the first detection element 71 and the second detection element 73. When the first detection element 71 detects that the flow of the first flow limiting valve 62 increases or decreases, it feeds the data back to the control unit. The control unit controls the water inlet of the second connecting pipe 5 by controlling the second flow limiting valve 72, and feeds back the flow data of the second connecting pipe 5 through the second detection element 73, so as to facilitate the real-time control of the concentration of the reagent mixture according to the actual production flow rate.
[0046] Reference Figure 1 andFigure 3 As shown, in this embodiment, there are preferably two sensors 224. Both sensors 224 are disposed on the inner wall of the expansion feed pipe 222. The two sensors 224 are symmetrical about the axis of the expansion feed pipe 222. The control unit receives the data from the sensors 224. An electric valve is provided at the discharge port of the hopper 221 to control whether to discharge material. The control unit can control the start and stop of the electric valve.
[0047] Reference Figure 1 and Figure 3 As shown, in actual application, when the sensor 224 detects water, it indicates that the powdered agent and water have been mixed for the first time and are close to the discharge port of the hopper 221. The sensor 224 transmits the signal data to the control unit, which controls the opening and closing of the electric valve to prevent the powdered agent and water from flowing back into the hopper 221 and improve the stability of the feeding from the hopper 221.
[0048] Reference Figure 1 As shown, by adopting the above technical solution, the third flow limiting valve 74 is installed on the first connecting pipe 23, the third detection element 75 detects the flow rate of the third flow limiting valve 74, the control unit can receive the data of the third detection element 75, and the control unit can control the third flow limiting valve 74.
[0049] Reference Figure 1 and Figure 3 As shown, during actual use of the device, the third detection element 75 detects the flow rate of the third flow limiting valve 74. When the sensing element 224 detects the presence of water, the control unit adjusts the flow rate of the first connecting pipe 23 by controlling the third flow limiting valve 74, thereby reducing the water flow into the second mixing element 4 and effectively preventing the backflow of the powdered agent into the hopper 221 after the first mixing of the powdered agent and the water. In this embodiment, the first detection element 71, the second detection element 73, and the third detection element 75 are all flow meters with data transmission functions.
[0050] Reference Figure 1 and Figure 3 As shown, the fuzzy control algorithm module can dynamically adjust the opening degree of the second flow limiting valve 72 and the third flow limiting valve 74 and the frequency of the pressurizing pump 33 based on the real-time data of the first detection element 71, the second detection element 73, the third detection element 75 and the sensing element 224, so as to realize the dual closed-loop intelligent control of the dosage concentration and flow rate, and has a self-learning function, which can record historical operating data and optimize the control strategy. The remote operation and maintenance module includes a wireless communication unit and a cloud data processing platform, which can monitor the device's operating status in real time, perform fault diagnosis and early warning, and generate operation and maintenance reports. Users can remotely adjust operating parameters through mobile terminals to achieve unattended intelligent operation and maintenance.
[0051] Reference Figure 1 and Figure 3 As shown, in this embodiment, both the hopper 221 and the expanded feed pipe 222 are made of antistatic materials and grounded to prevent the risk of explosion caused by static electricity accumulation during powder conveying. The dust removal and exhaust valve connected to exhaust port 11 is a high-efficiency pulse dust collector with automatic dust removal function, which reduces dust leakage, meets environmental emission standards, and is suitable for high-requirement industries such as chemical and pharmaceutical industries.
[0052] The implementation principle of a dual-jet powder feeding device according to an embodiment of this application is as follows: During the dosing of powdered agents, the powdered agents are projected into the first mixing unit 21 by the feeding component 22, achieving initial fusion of the powdered agents with the water and resolving gas interference. Subsequently, the second mixing unit 4 mixes the buffered and separated liquid-solid mixture with the second water stream and pressurizes it before dispensing, further breaking down local concentration differences and allowing the powdered agents to spread rapidly and evenly throughout the water tank. This significantly improves the reaction efficiency of the powdered agents, avoids problems such as wasted powdered agent efficacy and substandard local water treatment caused by insufficient mixing, shortens the onset time of the powdered agents, and effectively solves the problem of gas interference, preventing blockage and backflow, and achieving stable, efficient and continuous dosing.
[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A dual-jet powder feeding device, comprising a gas-liquid separation buffer tank (1) for gas-liquid separation of a mixed slurry, wherein the gas-liquid separation buffer tank (1) is provided with an exhaust port (11), characterized in that: It also includes a first jet mixing mechanism (2) for initially mixing powder with a first stream of water, a water supply mechanism (3) for mixing water, and a second mixing component (4) connected at one end to the outlet of the gas-liquid separation buffer tank (1). The first jet mixing mechanism (2) includes a first mixing component (21) connected at one end to the gas-liquid separation buffer tank (1) and a feeding assembly (22) for supplying powder to the first mixing component (21). The other end of the first mixing component (21) and the other end of the second mixing component (4) are both connected to the outlet of the water supply mechanism (3). The second mixing component (4) can perform secondary mixing of the buffered and separated liquid-solid mixture with the second stream of water and pressurize and dispense it.
2. The dual-jet powder feeding device according to claim 1, characterized in that: The gas-liquid separation buffer tank (1) is provided with an automatic liquid level adjustment mechanism (6) for adjusting the outflow rate of the water according to the liquid level in the gas-liquid separation buffer tank (1). The automatic liquid level adjustment mechanism (6) includes a float (61) installed in the gas-liquid separation buffer tank (1) and a first flow limiting valve (62) installed on the water outlet pipe of the gas-liquid separation buffer tank (1). The float (61) and the valve core of the first flow limiting valve (62) are mechanically linked.
3. The dual-jet powder feeding device according to claim 2, characterized in that: The water supply mechanism (3) includes a water pipe (31) connected to a water source, a control valve (32) installed on the water pipe (31), a booster pump (33) connected to the water pipe (31), and an outlet pipe (34) connected to the booster pump (33). The first mixing component (21) is connected to the outlet pipe (34) through a first connecting pipe (23), and the second mixing component (4) is connected to the outlet pipe (34) through a second connecting pipe (5).
4. The dual-jet powder feeding device according to claim 3, characterized in that: It also includes a control mechanism (7), which includes a first detection element (71) for detecting the flow rate of the first flow limiting valve (62), a second flow limiting valve (72) disposed on the second connecting pipe (5), a second detection element (73) for detecting the flow rate of the second flow limiting valve (72), and a control unit for controlling the second flow limiting valve (72). The second detection element (73) is disposed on the second connecting pipe (5), and the control unit can receive data from the first detection element (71) and the second detection element (73).
5. The dual-jet powder feeding device according to claim 4, characterized in that: The feeding assembly (22) includes a hopper (221) for holding powder and an expanded feed pipe (222) with one end connected to the outlet of the hopper (221). The other end of the expanded feed pipe (222) is connected to the powder inlet of the first mixing component (21). The cross-sectional area of at least a partial section of the expanded feed pipe (222) is configured to be larger than the cross-sectional area of the outlet pipe of the hopper (221) to accommodate the backflow medium and promote gas-liquid separation.
6. The dual-jet powder feeding device according to claim 5, characterized in that: The inner wall of the expansion feed pipe (222) is provided with a flow-blocking element (223), which prevents the backflow medium from rising to the outlet of the hopper (221). The bottom of the flow-blocking element (223) is provided with a tip that can puncture the air bubbles in the drug mixture.
7. The dual-jet powder feeding device according to claim 6, characterized in that: The inner wall of the expanded feed pipe (222) is provided with a sensor (224) that can sense the water level. The control unit can receive the data of the sensor (224). The discharge port of the hopper (221) is provided with an electric valve that controls whether to discharge material. The control unit can control the start and stop of the electric valve.
8. The dual-jet powder feeding device according to claim 7, characterized in that: An airflow disturbance device is provided inside the expanded feed pipe (222). The airflow disturbance device is signal-connected to the sensor (224). The airflow disturbance device includes at least one set of miniature air nozzles, which are connected to an external air source through an air pipe.
9. The dual-jet powder feeding device according to claim 4, characterized in that: The control mechanism (7) includes a third flow limiting valve (74) disposed on the first connecting pipe (23) and a third detection element (75) for detecting the flow rate of the third flow limiting valve (74). The control unit can receive data from the third detection element (75) and can control the third flow limiting valve (74).
10. The dual-jet powder feeding device according to claim 1, characterized in that: The exhaust port (11) is connected to a dust removal exhaust valve.