A back-flushing material feeding rapid mixing device

Abstract

The utility model belongs to the technical field of mixing equipment, concretely relates to a back -blow material supply speed mixing device, including hopper, blanking assembly, cylinder subassembly, three -way ball valve and blow material subassembly, blanking assembly connects in the bottom of hopper, the top of cylinder subassembly is connected with the bottom of blanking assembly, and the bottom of cylinder subassembly is connected with transition hopper, the bottom of transition hopper is connected with first ball valve, the bottom of first ball valve is connected with three -way ball valve, one end of three -way ball valve is connected with first gas compressor, the other end is connected with second ball valve, and blow material subassembly is connected with three -way ball valve through second ball valve. The device can prevent the intrusion of external water vapor, can use high pressure gas to remove the residual material powder in the pipeline, and avoid blockage. With the help of negative pressure effect, the powder is sucked and forms gas-solid two-phase flow, realizing long-distance and efficient conveying of the powder. The high-speed airflow can disperse the lumpy powder, guide the powder to fully contact with water in the annular accommodating cavity, and achieve better mixing effect.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and more specifically, to a backflushing feeding and rapid mixing device. Background Technology

[0002] In industrial production, the conveying and mixing of powders is a key step in many production processes and is widely used in many industries such as chemical, pharmaceutical, food, and building materials.

[0003] Traditional powder conveying and mixing devices have several problems in practical applications. First, powder is prone to clumping and adhering to the inner wall of the pipe due to its stickiness or moisture, or causing blockages within the pipe. This not only makes cleaning difficult but can also breed bacteria, corrode equipment, and shorten its service life. Second, traditional devices have significant airtightness issues, allowing external moisture to enter during operation, further increasing the risk of pipe blockage and affecting production. Additionally, traditional devices cannot effectively clean residual powder from the pipes after conveying, impacting equipment lifespan.

[0004] Meanwhile, existing equipment makes it difficult to ensure that powder and water come into full contact and mix evenly, which can easily lead to localized excessively high or low material concentrations, resulting in unstable product quality. Utility Model Content

[0005] This utility model provides a backflushing feeding and rapid mixing device, the purpose of which is to solve the problem of easy blockage in the pipeline of the powder conveying and mixing device in the prior art.

[0006] The technical solution of this utility model is as follows:

[0007] A backflushing feeding and rapid mixing device includes a funnel, a feeding assembly, a cylinder assembly, a three-way ball valve, and a blowing assembly. The feeding assembly is connected to the bottom of the funnel. The top of the cylinder assembly is connected to the bottom of the feeding assembly, and the bottom of the cylinder assembly is connected to a transition funnel. The bottom of the transition funnel is connected to a first ball valve, and the bottom of the first ball valve is connected to a three-way ball valve. One end of the three-way ball valve is connected to a first gas compressor, and the other end is connected to a second ball valve. The blowing assembly is connected to the three-way ball valve through the second ball valve.

[0008] Furthermore, the feeding assembly includes a first connecting pipe, a servo motor, and a screw. The top of the first connecting pipe is connected to the bottom of the funnel, one end of the first connecting pipe is connected to the servo motor, and the other end of the first connecting pipe is connected to a sealing cap. The screw is connected to the servo motor and is located inside the first connecting pipe.

[0009] Furthermore, the cylinder assembly includes a piston, a cylinder body, and an air connector. The piston is slidably connected to the cylinder body and is located inside the cylinder body. The air connector is connected to the outer wall of the cylinder body and is evenly distributed along the outer wall of the cylinder body. The air connector is connected to a second air compressor.

[0010] Furthermore, the blowing assembly includes a conveying pipe and a second connecting pipe. The conveying pipe is connected to the second ball valve, and the second connecting pipe is sleeved on the outer wall of the conveying pipe. The second connecting pipe has an inlet and an outlet. The inlet is connected to a feeder, and the outlet is connected to a collection tank.

[0011] Furthermore, the second connecting pipe also has an annular cavity for accommodating powder, and the annular cavity is connected to the feed inlet and the discharge outlet.

[0012] Furthermore, the conveying pipe passes through the annular receiving cavity and communicates with the discharge port.

[0013] Furthermore, the inner wall of the funnel is uniformly provided with several reinforcing ribs, and the outer wall of the funnel is provided with a pneumatic hammer.

[0014] Furthermore, a weight sensor is also provided on the outer wall of the funnel.

[0015] The beneficial effects of this utility model are as follows:

[0016] The reverse-flushing feeding and rapid mixing device provided by this utility model, through the coordinated action of the feeding component and the servo motor, not only achieves efficient conveying and mixing of powder, but also solves the problem of poor feeding caused by powder agglomeration in traditional devices, effectively improving feeding stability and efficiency.

[0017] By combining cylinder components with inert gas, external moisture can be prevented from entering during powder conveying, ensuring the powder remains dry. At the same time, high-pressure gas is used to backflush and clean the pipeline when the machine is stopped, removing residual powder from the pipeline, preventing clumping and blockage, and extending the service life of the equipment.

[0018] The three-way ball valve utilizes the negative pressure effect generated by the gas compressor to accelerate the intake of powder and form a gas-solid two-phase flow, achieving efficient long-distance transportation. The high-speed airflow can also disperse clumps of powder, ensuring uniform mixing.

[0019] The annular cavity structure guides the powder to fully contact with water, optimizing the mixing effect, while the reinforcing ribs and pneumatic hammer design of the funnel enhance structural stability and prevent material adhesion and blockage. Combined with the weight sensor to monitor the feeding status in real time, the overall intelligence and reliability of the device are improved. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the device of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the device after the funnel is removed;

[0023] Figure 3 This is a three-dimensional structural diagram of the blowing assembly of the device of this utility model;

[0024] Figure 4 This is a cross-sectional view of the blowing assembly of the device of this utility model;

[0025] Figure 5 This is a cross-sectional view of the three-way ball valve of the device of this utility model;

[0026] Figure 6 This is a cross-sectional view of the three-way ball valve of the present invention in another installation state.

[0027] Legend: 1-Function funnel; 2-Feeding assembly; 21-First connecting pipe; 22-Servo motor; 3-Cylinder assembly; 4-First ball valve; 5-Three-way ball valve; 51-First valve port; 52-Second valve port; 53-Third valve port; 6-Second ball valve; 7-Blowing assembly; 71-Second connecting pipe; 72-Conveying pipe; 73-Inlet; 74-Outlet; 75-Annular receiving cavity. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Example 1

[0032] A backflushing feeding and rapid mixing device includes a funnel 1, a feeding assembly 2, a cylinder assembly 3, a three-way ball valve 5, and a blowing assembly 7. The feeding assembly 2 is connected to the bottom of the funnel 1. The top of the cylinder assembly 3 is connected to the bottom of the feeding assembly 2, and the bottom of the cylinder assembly 3 is connected to a transition funnel. The bottom of the transition funnel is connected to a first ball valve 4. The bottom of the first ball valve 4 is connected to a three-way ball valve 5. One end of the three-way ball valve 5 is connected to a first gas compressor (not shown in the figure), and the other end of the three-way ball valve 5 is connected to a second ball valve 6. The blowing assembly 7 is connected to the three-way ball valve 5 through the second ball valve 6.

[0033] Furthermore, the feeding assembly 2 includes a first connecting pipe 21, a servo motor 22, and a screw. The top of the first connecting pipe 21 is connected to the bottom of the funnel 1, one end of the first connecting pipe 21 is connected to the servo motor 22, and the other end of the first connecting pipe 21 is connected to a sealing cap. The screw is connected to the servo motor 22 and is located inside the first connecting pipe 21.

[0034] In this embodiment, the sealing cap seals one end of the first connecting pipe 21 so that the powder can enter the subsequent pipe along a preset path, and the sealing cap can also be opened to facilitate maintenance of the device.

[0035] It should be noted that in this embodiment, the screw feeding mechanism can also be replaced with a pneumatic feeding mechanism to further enhance the pneumatic material conveying function of the device.

[0036] Furthermore, the cylinder assembly 3 includes a piston, a cylinder body, and an air connector. The piston is slidably connected to the cylinder body and is located inside the cylinder body. The air connector is connected to the outer wall of the cylinder body and is evenly distributed along the outer wall of the cylinder body. The air connector is connected to a second air compressor (not shown in the figure).

[0037] Furthermore, the blowing assembly 7 includes a conveying pipe 72 and a second connecting pipe 71. The conveying pipe 72 is connected to the second ball valve 6. The second connecting pipe 71 is sleeved on the outer wall of the conveying pipe 72, and the second connecting pipe 71 has an inlet 73 and an outlet 74. The inlet 73 is connected to a feeder (not shown in the figure), and the outlet 74 is connected to a collection tank (not shown in the figure).

[0038] It should be noted that in this embodiment, the working principle of the device is explained by the example of mixing powder and water, but it should not be regarded as a limitation of the device, and will not be elaborated further thereafter.

[0039] The powder enters the feeding assembly 2 through the funnel 1. The servo motor 22 provides power to the screw. As the screw rotates, friction is generated between the material and the screw. Under the action of friction, the material moves forward along the axial direction of the screw, conveying the powder to the cylinder assembly 3. The cylinder assembly 3 controls the amount of powder conveyed through the cooperation of the piston and the cylinder body. It can also isolate the outside air during the transportation or long-term storage of the device, preventing moisture from causing the powder to become damp. In addition, the air connector on the outer wall of the cylinder body is connected to the second gas compressor. During operation, inert gas can be introduced into the cylinder body through the second gas compressor, which can blow the powder to the subsequent pipeline according to the predetermined channel, speeding up the feeding process. The introduced inert gas can also isolate the air, keep the channel dry, and prevent the powder from being affected by oxygen and moisture. This avoids the powder from becoming damp and clumping in the pipeline, causing pipeline blockage and affecting production efficiency.

[0040] Both the first ball valve 4 and the second ball valve 6 serve as sealing devices, control the amount of powder conveyed, and respond to emergencies. Furthermore, the first ball valve 4 and the second ball valve 6 divide the device into three parts: the feeding part, the blowing part, and the mixing part.

[0041] It should be noted that the first ball valve 4 and the second ball valve 6 can also be replaced by a three-way ball valve 5 or other valves in the prior art, as long as they meet the usage requirements, and no limitation is made here.

[0042] The feeding section includes: hopper 1, feeding assembly 2, cylinder assembly 3, second gas compressor (not shown in the figure), and transition hopper;

[0043] The blowing section includes: a three-way ball valve 5, a delivery pipe 72, and a first gas compressor (not shown in the figure);

[0044] The mixing section includes: a second connecting pipe 71, a feeder (not shown in the figure), and a collection tank (not shown in the figure). When a part of the device is damaged and affects production, the first ball valve 4 and the second ball valve 6 can isolate the corresponding part to prevent the damaged part from affecting other parts of the device, and also facilitate subsequent maintenance.

[0045] The first gas compressor continuously supplies high-pressure gas into the three-way ball valve 5. This high-pressure gas creates a dynamic airflow environment inside the three-way ball valve 5. The high-pressure gas flows towards the delivery pipe 72. During the process of the gas passing through the three-way ball valve 5 and entering the delivery pipe 72, the high-speed flow of the gas creates a negative pressure at the top opening of the three-way ball valve 5. That is, when the fluid flows in the pipe, the pressure decreases where the flow velocity increases. The formation of this negative pressure causes the powder to be drawn into the three-way ball valve 5, accelerating the feeding process.

[0046] It should be noted that in this implementation, reference is made to... Figure 5 The three-way ball valve 5 includes a first valve port 51, a second valve port 52 and a third valve port 53. The first valve port 51 is connected to the first ball valve 4, the second valve port 52 is connected to the second air compressor, and the third valve port 53 is connected to the second ball valve 6.

[0047] Among them, by adjusting the output pressure and flow rate of the first gas compressor, the magnitude of the negative pressure can be precisely controlled, thereby adjusting the speed and efficiency of powder absorption;

[0048] After the sucked-in powder is mixed with high-pressure gas, a gas-solid two-phase flow is formed. The high-pressure gas serves as a power source, propelling the powder forward within the conveying pipe 72, enabling efficient and long-distance conveying of the powder. Furthermore, during the conveying process, agglomerates in the powder can be dispersed under the action of high-speed airflow, which helps the powder to fully contact water during subsequent mixing.

[0049] Furthermore, this device also features a backflushing cleaning and drying function. When the device stops working or restarts, the first and second gas compressors blow high-pressure gas into the device to blow out any residual powder from the pipes, effectively cleaning the residual powder in the flow channels and preventing powder from depositing and clumping inside the pipes. Before restarting the device after shutdown, the first and second gas compressors can blow high-pressure gas into the device to dry the moisture in the pipes. This helps keep the powder channels dry and prevents the powder from clumping and clogging the pipes due to moisture during subsequent device operation.

[0050] It should be noted that the type and pressure of the gas delivered by the first gas compressor and the second gas compressor shall be determined according to the actual production situation and are not limited here;

[0051] Preferably, in this embodiment, an inert gas is selected as the transport gas.

[0052] Furthermore, the second connecting pipe 71 is also provided with an annular receiving cavity 75 for containing powder, and the annular receiving cavity 75 is connected to the feed inlet 73 and the discharge outlet 74.

[0053] Furthermore, the conveying pipe 72 passes through the annular receiving cavity 75 and connects to the discharge port 74.

[0054] In this embodiment, reference Figure 4 The discharge port 74 is a funnel-shaped opening.

[0055] The second connecting pipe 71 and the conveying pipe 72 are connected by a thread to adjust the distance between the conveying pipe and the outlet. This ensures a stable flow rate under different flow conditions and guarantees the conveying capacity, as detailed below:

[0056] By rotating the conveying pipe 72, utilizing the mechanical principle of the thread, it can be moved back and forth within the second connecting pipe 71, thereby changing the distance between the conveying pipe 72 and the outlet 74. When an increased flow rate is required, the conveying pipe 72 can be moved backward, widening the distance between the conveying pipe 72 and the outlet 74, increasing the effective flow area of ​​the outlet 74, thus allowing more fluid to pass through per unit time to meet high flow rate requirements. Conversely, when a reduced flow rate is required, the conveying pipe 72 can be moved forward, narrowing the distance, reducing the effective flow area of ​​the outlet 74, limiting the fluid throughput, and achieving precise control of low flow rates.

[0057] Furthermore, by adjusting the distance between the conveying pipe 72 and the discharge port 74, the flow state of the fluid at the discharge port 74 can be changed. When the distance is appropriate, a stable flow front can be formed at the discharge port 74, avoiding problems such as unstable fluid flow and eddies caused by excessive distance or blockage caused by insufficient distance. This facilitates better contact and mixing of powder and water, forming a uniform fluid mixture. A uniform mixture is more conducive to subsequent conveying and collection processes, improving the mixing effect and working efficiency of the entire system; and the structural design of the annular pressure chamber can guide the mixture of water and powder to the discharge port 74, ensuring that the mixed material enters the storage tank along a predetermined path.

[0058] Furthermore, the inner wall of the funnel 1 is uniformly provided with several reinforcing ribs, and the outer wall of the funnel 1 is provided with a pneumatic hammer.

[0059] During operation, hopper 1 needs to withstand the weight of the material and the impact force generated when the material falls. The reinforcing ribs can effectively improve the compressive strength and impact resistance of the inner wall of hopper 1, preventing hopper 1 from deforming or being damaged during long-term use or when subjected to large material impacts. This allows hopper 1 to maintain its original shape and dimensional accuracy under stress, avoiding problems such as poor material discharge or blockage caused by deformation of hopper 1.

[0060] During the feeding process of some easily agglomerated and highly viscous materials, adhesion and sticking can easily occur on the inner wall of hopper 1. The pneumatic hammer periodically or continuously strikes the outer wall of hopper 1, causing the hopper to vibrate. This vibration loosens the material adhering to the inner wall, allowing it to fall back down, effectively preventing blockage and ensuring smooth feeding. The pneumatic hammer is existing technology and will not be further described here.

[0061] Furthermore, a weight sensor is also installed on the outer wall of funnel 1.

[0062] The weight sensor is used to monitor and record the weight change of hopper 1 in real time, and can detect the feeding situation;

[0063] Under normal circumstances, the weight of the material in hopper 1 will gradually decrease as the material falls. If the weight sensor detects that the material weight does not change over a period of time, or changes abnormally slowly, it may indicate that a blockage has occurred in the hopper. In this case, the weight sensor can issue an alarm in a timely manner to notify the operator to handle the situation and avoid production interruption due to blockage.

[0064] Example 2

[0065] Based on Example 1, this example provides another installation method for the three-way ball valve 5 and the blowing assembly 7, as follows:

[0066] In this implementation, refer to Figure 6 The third valve port 53 is connected to the first ball valve 4, the first valve port 51 is connected to the first gas compressor, and the second valve port 52 is connected to the second ball valve 6, so that the blowing assembly 7 and the cylinder assembly 3 are set on the same axis. In this installation state, the blowing assembly 7 is vertical relative to the horizontal plane. The device in this state has better connection stability, and due to gravity, the material feeding is smoother. The appropriate installation method can be selected according to the actual production situation.

[0067] The above description is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above through embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A backflushing feeding and rapid mixing device, characterized in that, The assembly includes a funnel (1), a feeding assembly (2), a cylinder assembly (3), a three-way ball valve (5), and a blowing assembly (7). The feeding assembly (2) is connected to the bottom of the funnel (1). The top of the cylinder assembly (3) is connected to the bottom of the feeding assembly (2), and the bottom of the cylinder assembly (3) is connected to a transition funnel. The bottom of the transition funnel is connected to a first ball valve (4), and the bottom of the first ball valve (4) is connected to a three-way ball valve (5). One end of the three-way ball valve (5) is connected to a first gas compressor, and the other end is connected to a second ball valve (6). The blowing assembly (7) is connected to the three-way ball valve (5) through the second ball valve (6).

2. The apparatus according to claim 1, characterized in that, The feeding assembly (2) includes a first connecting pipe (21), a servo motor (22) and a screw. The first connecting pipe (21) is connected to the bottom of the funnel (1). One end of the first connecting pipe (21) is connected to the servo motor (22). The other end of the first connecting pipe (21) is connected to a sealing cap. The screw is connected to the servo motor (22) and is located inside the first connecting pipe (21).

3. The apparatus according to claim 1, characterized in that, The cylinder assembly (3) includes a piston, a cylinder body, and an air connector. The piston is slidably connected to the cylinder body and is located inside the cylinder body. The air connector is connected to the outer wall of the cylinder body and is evenly distributed along the outer wall of the cylinder body. The air connector is connected to a second air compressor.

4. The apparatus according to claim 1, characterized in that, The blowing assembly (7) includes a conveying pipe (72) and a second connecting pipe (71). The conveying pipe (72) is connected to the second ball valve (6). The second connecting pipe (71) is sleeved on the outer wall of the conveying pipe (72). The second connecting pipe (71) has an inlet (73) and an outlet (74). The inlet (73) is connected to a feeder, and the outlet (74) is connected to a collection tank.

5. The apparatus according to claim 4, characterized in that, The second connecting pipe (71) also has an annular cavity (75) for accommodating powder, and the annular cavity (75) is connected to the feed inlet (73) and the discharge outlet (74).

6. The apparatus according to claim 5, characterized in that, The conveying pipe (72) passes through the annular receiving cavity (75) and communicates with the discharge port (74).

7. The apparatus according to claim 1, characterized in that, The inner wall of the funnel (1) is uniformly provided with several reinforcing ribs, and the outer wall of the funnel (1) is provided with a pneumatic hammer.

8. The apparatus according to claim 7, characterized in that, The outer wall of the funnel (1) is also equipped with a weight sensor.

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