Resin replacing device for ion exchanger

Abstract

An ion exchanger resin replacing device comprises a shell, a resin containing cavity is formed in the shell, and the bottom of the resin containing cavity is filled with a resin layer; the resin adding opening is formed in the side wall of the top of the shell; the first end of the inlet pipe is in sealed connection with the resin adding opening; the discharging end of the pneumatic diaphragm pump is connected with the second end of the inlet pipe; the first ton barrel is communicated with the feeding hole of the pneumatic diaphragm pump through a flexible conveying pipe, and unused resin is stored in the first ton barrel; through unique structural design, two working states are provided and can be flexibly switched, so that rapid discharge and accurate injection of resin are realized, the resin replacement efficiency is greatly improved, and the manual operation intensity is reduced. For example, when old resin is discharged, the resin forms a fluidized discharge flow state by utilizing internal water pressure and is smoothly discharged through the discharge pipe; when new resin is injected, the pneumatic diaphragm pump injects in a dense-phase conveying mode, and the injection amount can be accurately controlled according to the ultrasonic level gage.

Description

Technical Field

[0001] This utility model relates to a replacement device, specifically an ion exchanger resin replacement device. Background Technology

[0002] In industrial production, ion exchangers are key equipment widely used in water purification, chemical separation, and other fields. Resin, as the core material that enables the ion exchanger to function, gradually loses its exchange capacity over time due to adsorption saturation, structural damage, and other reasons. Therefore, periodic resin replacement is essential to ensure the normal operation of the ion exchanger.

[0003] Currently, ion exchanger resin replacement is generally performed using traditional manual methods: When removing resin, a team of five people must first erect scaffolding, then remove the resin, weighing over ten tons, in 25-kilogram bags from the bottom flange of the equipment. When approaching the bottom of the equipment, due to the confined space, workers must obtain confined space work permits and risk entering the equipment to complete the remaining resin removal. During resin addition, workers must use pulleys to hoist the same ten tons of resin to the top of the equipment and then pour it into the equipment through the manhole. This traditional method has many drawbacks. It is extremely labor-intensive, consuming significant manpower and time. Furthermore, the entire process involves high-risk operations at heights and in confined spaces, posing significant safety hazards. Even slight mistakes can lead to injuries or fatalities. The inaccuracy of manual operation also makes it difficult to guarantee the quality and efficiency of resin replacement. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides an ion exchanger resin replacement device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution, which includes:

[0006] The shell has a resin accommodating cavity formed inside, and the bottom of the resin accommodating cavity is filled with a resin layer;

[0007] The resin inlet is located on the top side wall of the housing;

[0008] The inlet tube has its first end sealed to the resin inlet.

[0009] A pneumatic diaphragm pump, the discharge end of which is connected to the second end of the inlet pipe;

[0010] The first ton container is connected to the inlet of the pneumatic diaphragm pump via a flexible conveying pipe, and it contains unused resin.

[0011] The replacement port is located on the side wall of the housing and below the liquid level of the resin layer.

[0012] Control valve, installed at the outlet end of the replacement port;

[0013] The discharge pipe has its first end connected to a control valve.

[0014] The second ton container is fixed below the second end of the discharge pipe;

[0015] The device has a first operating state and a second operating state:

[0016] In the first working state, the control valve is opened, and the resin layer is fluidized and discharged under the action of water pressure inside the shell, and is transported to the second ton tank through the discharge pipe.

[0017] In the second working state, the control valve is closed, the pneumatic diaphragm pump generates delivery pressure, and injects the resin in the first ton barrel into the shell through the inlet pipe in a dense phase delivery manner.

[0018] Preferably, the axis of the resin inlet is set at an angle of 30-45° to the tangent direction of the top of the shell, and the end of the inlet tube extends to 200-300mm above the resin liquid surface.

[0019] Preferably, the discharge pipe is a transparent polyethylene hose with spiral guide ribs on its inner wall, the pitch of which is 1.2-1.5 times the pipe diameter.

[0020] Preferably, an ultrasonic level gauge is provided inside the housing, and the detection end of the ultrasonic level gauge is located 100-150mm above the resin layer.

[0021] Preferably, the valve body surface of the control valve is coated with a polytetrafluoroethylene wear-resistant coating, and the valve core is made of tungsten carbide ceramic material.

[0022] Preferably, the inlet pipe is a steel wire flexible tube.

[0023] Beneficial effects: Efficient resin replacement: Through its unique structural design, it features two working states that can be flexibly switched, enabling rapid resin discharge and precise injection, greatly improving resin replacement efficiency and reducing manual labor intensity. For example, when discharging old resin, internal water pressure is used to create a fluidized discharge flow, which is then smoothly discharged through the discharge pipe; when injecting new resin, a pneumatic diaphragm pump injects it using a dense phase delivery method, and the injection volume can be precisely controlled by an ultrasonic level gauge.

[0024] Reduce the risk of clogging: The axis of the resin inlet is set at a 30-45° angle to the tangent direction of the top of the shell, and the end of the inlet extends to a suitable position above the resin liquid surface. This helps the resin to form a reasonable flow trajectory during injection, reducing the risk of resin accumulation and clogging during the injection process. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] The following are the labels in the diagram: 1. Shell; 2. Resin; 3. Resin inlet; 4. Inlet pipe; 5. Pneumatic diaphragm pump; 6. First ton container; 7. Replacement port; 8. Control valve; 9. Discharge pipe; 10. Second ton container. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 The specific embodiments of this utility model will be described in further detail.

[0029] Implementation examples, by Figure 1 This utility model provides an ion exchanger resin replacement device, comprising: a shell 1, resin 2, resin inlet 3, inlet pipe 4, pneumatic diaphragm pump 5, first tonne tank 6, replacement port 7, control valve 8, discharge pipe 9, and second tonne tank 10.

[0030] The housing 1 has a resin accommodating cavity inside, and the bottom of the resin accommodating cavity is filled with a resin layer 2;

[0031] Resin inlet 3 is located on the top side wall of housing 1;

[0032] The inlet pipe 4 is sealed at its first end to the resin inlet 3.

[0033] The pneumatic diaphragm pump 5 has its discharge end connected to the second end of the inlet pipe 4;

[0034] The first ton container 6 is connected to the inlet of the pneumatic diaphragm pump 5 through a flexible conveying pipe, and the first ton container 6 contains unused resin.

[0035] Replacement port 7 is located on the side wall of housing 1 and below the liquid level of resin layer 2;

[0036] Control valve 8 is installed at the outlet end of replacement port 7;

[0037] Discharge pipe 9, the first end of which is connected to control valve 8;

[0038] The second ton 10 is fixed below the second end of the discharge pipe 9;

[0039] The device has a first operating state and a second operating state:

[0040] In the first working state, the control valve 8 is opened, and the resin layer 2 is fluidized and discharged under the action of water pressure inside the shell 1, and is transported to the second ton 10 through the discharge pipe 9.

[0041] In the second working state, the control valve 8 is closed, the pneumatic diaphragm pump 5 generates delivery pressure, and injects the resin in the first ton 6 into the shell 1 through the inlet pipe 4 in a dense phase delivery manner.

[0042] Housing 1: The main body of the device, with an internal resin-containing cavity filled with a resin layer 2 at the bottom. Housing 1 provides storage and working space for the resin, and its structural design ensures the device's airtightness and stability.

[0043] Resin inlet 3: Located on the top side wall of the housing 1, it is used for injecting new resin. The axis of the resin inlet 3 is set at an angle of 30-45° with the tangent direction of the top of the housing 1. This design helps the resin to form a reasonable flow trajectory during injection, reducing the risk of resin accumulation and blockage during the injection process.

[0044] Inlet tube 4: The first end is sealed to the resin inlet 3, and the last end extends 200-300mm above the surface of the resin layer 2. The inlet tube 4 is made of steel wire hose, which has good flexibility and pressure resistance, ensuring that the new resin can be smoothly delivered to the designated position inside the housing 1.

[0045] Pneumatic diaphragm pump 5: The discharge end is connected to the second end of the inlet pipe 4. By generating conveying pressure, it injects the unused resin in the first ton 6 into the shell 1 in a dense phase conveying manner, thereby achieving efficient addition of new resin.

[0046] First ton 6: Connected to the inlet of pneumatic diaphragm pump 5 via a flexible conveying pipe, it is used to store unused resin and provide a sufficient source of new resin for the unit.

[0047] Replacement port 7: Located on the side wall of the housing 1 and below the liquid level of the resin layer 2, it is a channel for the discharge of old resin.

[0048] Control valve 8: Installed at the outlet end of the replacement port 7, it is used to control the opening and closing of the replacement port 7, thereby switching the working state of the device. The valve body surface of control valve 8 is coated with a polytetrafluoroethylene wear-resistant coating, and the valve core is made of tungsten carbide ceramic material, which has good wear resistance and sealing performance, ensuring the service life and control accuracy of the valve.

[0049] Discharge pipe 9: The first end connects to control valve 8. It is a transparent polyethylene hose with spiral guide ribs on the inner wall. The pitch of the guide ribs is 1.2-1.5 times the pipe diameter. This design helps to guide the old resin to drain smoothly and facilitates observation of the resin discharge.

[0050] Second ton 10: Fixed below the second end of the discharge pipe 9, used to collect old resin discharged from the shell 1.

[0051] Ultrasonic level gauge: installed inside the housing 1, with the detection end located 100-150mm above the resin layer 2, to monitor the liquid level of the resin inside the housing 1 in real time, providing accurate data support for resin replacement operations.

[0052] Working principle: First working state: Old resin is discharged

[0053] When the device is in the first operating state of old resin discharge, the operator opens the control valve 8 installed at the outlet end of the replacement port 7. At this time, the water pressure inside the housing 1 becomes the power source for driving the resin discharge. Since the replacement port 7 is located on the side wall of the housing 1 and below the liquid level of the resin layer 2, under the action of water pressure, the resin layer 2, which was originally in a filled state, is transformed into a fluidized discharge flow state. This fluidized resin enters the discharge pipe 9 through the replacement port 7.

[0054] The discharge pipe 9 is made of transparent polyethylene tubing, with spiral guide ribs on its inner wall playing a crucial role. The pitch of these guide ribs is 1.2-1.5 times the pipe diameter, effectively guiding the resin to flow smoothly, reducing flow resistance, and preventing resin buildup and blockage within the pipe. Simultaneously, the transparent material allows operators to observe the resin discharge speed and status in real time, ensuring complete discharge of used resin. Finally, the used resin is transported through the discharge pipe 9 to the second tonne tank 10 located below its second end, completing the collection process.

[0055] Second working state: New resin injection

[0056] After the old resin is discharged, the second working state of new resin injection begins. First, the operator closes the control valve 8 to block the connection between the inside of the housing 1 and the outside. Then, the pneumatic diaphragm pump 5 is started, and the pump begins to perform its delivery function.

[0057] The inlet of the pneumatic diaphragm pump 5 is connected to the first ton container 6 storing unused resin via a flexible conveying pipe, and the outlet is connected to the second end of the inlet pipe 4. After startup, the pneumatic diaphragm pump 5 generates conveying pressure, drawing the unused resin in the first ton container 6 through the flexible conveying pipe and injecting it into the housing 1 via the inlet pipe 4 in a dense phase conveying manner.

[0058] The axis of the resin inlet 3 is set at an angle of 30-45° with the tangent direction of the top of the shell 1, and the end of the inlet pipe 4 extends to 200-300mm above the liquid surface of the resin layer 2. This design allows the newly injected resin to enter the shell 1 at a specific angle and position, and to be evenly distributed in the shell, avoiding local accumulation.

[0059] In addition, an ultrasonic level gauge installed inside the housing 1 continuously monitors the resin level. Its detection end is located 100-150mm above the resin layer 2, enabling real-time monitoring of the resin level within the housing 1. When the resin level reaches the set height, the ultrasonic level gauge sends a signal, allowing the operator to promptly stop the pneumatic diaphragm pump 5, precisely control the injection volume of new resin, and complete the new resin injection operation.

[0060] Through the orderly switching between these two working states and the coordinated operation of each component, this ion exchanger resin replacement device achieves efficient and precise resin replacement, meeting the needs of practical applications.

[0061] Beneficial effects: Efficient resin replacement: Through its unique structural design, it features two working states that can be flexibly switched, enabling rapid resin discharge and precise injection, greatly improving resin replacement efficiency and reducing manual labor intensity. For example, when discharging old resin, internal water pressure is used to create a fluidized discharge flow, which is then smoothly discharged through the discharge pipe; when injecting new resin, a pneumatic diaphragm pump injects it using a dense phase delivery method, and the injection volume can be precisely controlled by an ultrasonic level gauge.

[0062] Reduce the risk of clogging: The axis of the resin inlet is set at a 30-45° angle to the tangent direction of the top of the shell, and the end of the inlet extends to a suitable position above the resin liquid surface. This helps the resin to form a reasonable flow trajectory during injection, reducing the risk of resin accumulation and clogging during the injection process.

[0063] Easy to observe and control: The discharge pipe is made of transparent polyethylene tubing with spiral guide ribs on the inner wall, which facilitates observation of resin discharge and guides the resin to flow smoothly; the ultrasonic level gauge installed in the shell monitors the resin level in real time, providing accurate data support for resin replacement operations and making it easy for operators to control the resin discharge and injection process.

[0064] Extended component life: The valve body surface of the control valve is coated with a polytetrafluoroethylene wear-resistant coating, and the valve core is made of tungsten carbide ceramic material, which has good wear resistance and sealing performance, ensuring the service life and control accuracy of the valve, and reducing failures and maintenance costs caused by valve wear.

[0065] Ensuring operational safety: The device is designed with multiple safety factors in mind, such as checking the secure connections of all components before operation to prevent leaks; prohibiting overpressure operation of the pneumatic diaphragm pump to avoid component damage and accidents; requiring operators to wear protective equipment to prevent resin from contacting the skin or eyes; and prohibiting operation of the electrical control components in humid environments to prevent electric shock accidents, thus ensuring the safety of operators and equipment.

[0066] Easy maintenance: The design of each component of the device facilitates maintenance, such as regular inspection of connection parts, cleaning of discharge pipes, and timely replacement of vulnerable parts, which can effectively maintain the normal operation of the device and reduce maintenance difficulty and cost.

[0067] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ion exchanger resin replacement device, characterized by, include: The shell (1) has a resin accommodating cavity inside, and the bottom of the resin accommodating cavity is filled with a resin layer (2); A resin inlet (3) is located on the top side wall of the housing (1); The inlet tube (4) is sealed at its first end to the resin inlet (3); A pneumatic diaphragm pump (5) is connected at its discharge end to the second end of the inlet pipe (4); The first ton (6) is connected to the inlet of the pneumatic diaphragm pump (5) through a flexible conveying pipe. Unused resin is stored in the first ton (6). Replacement port (7) is opened on the side wall of the shell (1) and located below the liquid level of the resin layer (2); Control valve (8) is installed at the outlet end of the replacement port (7); The discharge pipe (9) has its first end connected to the control valve (8); The second ton (10) is fixed below the second end of the discharge pipe (9); The device has a first operating state and a second operating state: In the first working state, the control valve (8) is opened, and the resin layer (2) is fluidized and discharged under the action of water pressure inside the shell (1), and is transported to the second ton (10) through the discharge pipe (9); In the second working state, the control valve (8) is closed, the pneumatic diaphragm pump (5) generates delivery pressure, and injects the resin in the first ton (6) into the shell (1) through the inlet pipe (4) in a dense phase delivery manner.

2. The ion exchanger resin replacement apparatus according to claim 1, characterized by: The axis of the resin inlet (3) is set at an angle of 30-45° with the tangent direction of the top of the shell (1), and the end of the inlet pipe (4) extends to 200-300mm above the liquid surface of the resin layer (2).

3. An ion exchanger resin replacement apparatus according to claim 2, characterized in that: The discharge pipe (9) is made of transparent polyethylene hose, and its inner wall is provided with spiral guide ribs. The pitch of the guide ribs is 1.2-1.5 times the pipe diameter.

4. The ion exchanger resin replacement apparatus of claim 3, wherein: An ultrasonic level gauge is installed inside the housing (1), and the detection end of the ultrasonic level gauge is located 100-150 mm above the resin layer (2).

5. An ion exchanger resin replacement apparatus according to claim 4, characterized in that: The valve body of the control valve (8) is coated with a polytetrafluoroethylene wear-resistant coating, and the valve core is made of tungsten carbide ceramic material.

6. The ion exchanger resin replacement device according to claim 5, characterized in that: The inlet pipe (4) is a steel wire hose.

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