CN210495968U - Mixing and stirring tank - Google Patents

Abstract

The utility model provides a mixing and stirring tank, is including the jar body, desicator, dew point hygrometer and the control unit that is equipped with agitating unit, the jar body is equipped with air inlet and gas vent, the desicator inlet end is connected with outside air supply, the end of giving vent to anger of desicator with air inlet, dew point hygrometer pipe connection, the control unit gathers dew point hygrometer detected data. The technical scheme of the utility model, the gaseous drying of guarantee solves the curing agent and meets the problem that moist gas rises the jar.

Description

Mixing and stirring tank

Technical Field

The utility model relates to a mixing arrangement especially relates to a mixing agitator tank.

Background

The curing agent is also called as hardening agent, curing agent or cross-linking agent, and is mainly used for cross-linking and curing of adhesive, paint and casting material. The curing agent can adjust the speed of the curing reaction and control the curing degree, and has important influence on the mechanical property, heat resistance, water resistance and corrosion resistance of a cured product. The curing agent is usually a mixture, and the production process requires mixing of various ingredients to form a uniform and stable gel. Therefore, the mixing and stirring tank is a common equipment for producing the curing agent. At present, the influence of the uniformity degree of the curing agent on the product quality is mainly concerned with the design of the curing agent stirring tank. For example, chinese patent publication No. CN209155668 discloses a method for stirring more uniformly and preventing solidification of materials by providing a plurality of filtering holes on a stirring plate. The Chinese patent with publication number CN110665394 improves the mixing speed and the mixing quality by arranging a plurality of motors, and enhances the mixing effect because the rotation directions of the motors are different. Chinese patent publication No. CN 208097853, which improves stirring efficiency and discharging efficiency by designing the feeding and spiral stirring blades.

The research shows that the quality of the curing agent is not only related to the uniformity of the curing agent, but also the stirring environment has important influence on the quality of the curing agent. Under the condition that the environment is relatively humid or the material has redundant moisture, the humidity in the mixing tank can be increased, the contact and reaction of the curing agent and the moisture in the air can cause the danger of tank expansion, and the quality of the curing agent can be influenced. In the prior art, nitrogen is adopted to continuously replace air in a mixing tank, so that a curing agent is not contacted with the air, but the moisture contained in the nitrogen which is not dried is not considered to possibly have adverse effect on the curing agent, and the risk of tank expansion still exists. If the nitrogen is dried and then used, the production cost is further increased.

Therefore, there is a need for a new mixing and stirring tank to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

For solving traditional mixing agitator tank because the interior gas moisture of jar is too much, cause jar and the curing agent low in production quality that rises, this paper provides a mixing agitator tank who is provided with drying function to solve the curing agent and meet the problem that humid gas rises the jar, improve production efficiency. The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a mixing and stirring tank, is including the jar body, desicator, dew point hygrometer and the control unit that is equipped with agitating unit, the jar body is equipped with air inlet and gas vent, the desicator inlet end is connected with outside air supply, the end of giving vent to anger of desicator with air inlet, dew point hygrometer pipe connection, the control unit gathers dew point hygrometer detected data.

Furthermore, an electric three-way valve is further connected to a pipeline between the air outlet end of the dryer and the air inlet, the control unit is electrically connected with the electric three-way valve, a first port of the electric three-way valve is communicated with the air outlet end of the dryer, a second port of the electric three-way valve is communicated with the air inlet, a third port of the electric three-way valve is connected with an exhaust channel, when the dew point instrument detection value is less than or equal to-30 ℃, the first port and the second port of the electric three-way valve are communicated, and when the dew point instrument detection value is greater than-30 ℃, the first port and the third port of the electric three-way valve are communicated.

Further, the dryer is a membrane dryer.

Further, a filter is arranged at the air inlet end of the dryer.

Further, the sewage treatment device also comprises an electromagnetic valve and a timer, wherein the electromagnetic valve is connected with the sewage discharge port of the filter, and the control unit is electrically connected with the timer and the electromagnetic valve.

Furthermore, a pressure regulating valve is further arranged on a pipeline between the air outlet end of the dryer and the air inlet, and a valve outlet of the pressure regulating valve is connected with a flowmeter.

Furthermore, a regulating valve is arranged at the valve inlet of the pressure regulating valve.

Further, the pressure regulating valve comprises two pipelines connected in series between the air outlet end of the dryer and the air inlet, and the flow meter is connected to the valve outlet of the pressure regulating valve close to the air inlet.

Further, the pipeline is a stainless steel pipeline.

Further, the pressure regulating valve is connected with the air inlet through a stainless steel hose.

The utility model provides a mixing and stirring tank to utilize the desicator inlet end to be connected with outside air supply, the desicator give vent to anger the end with air inlet pipe connection for the air has carried out a drying before getting into the jar body, and then the air admission jar body and discharge jar internal air from the gas vent. The system continuously introduces dry air into the tank body to replace the air in the tank body, so that the humidity of the gas in the tank body can be controlled. And simultaneously, the utility model discloses still be equipped with the control unit and dew point hygrometer, the desicator give vent to anger the end with dew point hygrometer pipe connection, the dew point hygrometer can measure the dry gas dew point after passing through the desicator, and the control unit is according to gathering dew point hygrometer detected data, break-make or control switch's break-make that just can the active control air supply to guarantee the internal humidity of jar and obtain control. Of course, the controller can also be used for data acquisition and display only. Through providing data, remind the staff to carry out the break-make to the air supply to the gaseous drying of guarantee solves the curing agent and meets the problem that humid gas rises the jar.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

FIG. 1 is a schematic view of a mixing and stirring tank of the present invention;

FIG. 2 is a schematic view of the intelligent control mixing and stirring tank of the present invention;

fig. 3 is a schematic view of an alternative to the pressure regulating valve of fig. 2.

1. A tank body; 11. an air inlet; 12. an exhaust port; 21. a dryer; 22. a dew point meter; 23. a filter; 24. a first valve; 25. a main valve; 26. an electric three-way valve; 27. a pressure regulating valve A; 28. a flow meter; 29. adjusting a valve; 210. a pressure regulating valve B; 211. a second valve; 212. a pipeline; 213. a hose; 214. a third valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, the present invention provides a mixing and stirring tank, which comprises a tank body 1 provided with a stirring device, a dryer 21, a dew point meter 22 and a control unit (not shown). The tank body 1 is provided with an air inlet 11 and an air outlet 12.

The air inlet end of the dryer 21 is connected with an external air source, and the dryer 21 is preferably a membrane dryer. The air source can be provided by a storage tank storing compressed air, or compressed air in the environment can be conveyed by a pump body, or circulating air can be adopted. The circulating gas is that the gas is conveyed to the tank body 1 through the gas inlet 11 by the pump body and is sucked into the pump body after the gas leaves the tank body 1 through the gas outlet 12, and the pump body provides circulating power of the gas.

The end of giving vent to anger of desicator 21 with air inlet 11, dew point hygrometer 22 pipe connection, specifically the end of giving vent to anger of desicator 21 is connected to through a trunk line air inlet 11 be equipped with the side direction lateral branch pipeline on the trunk line, dew point hygrometer 22 is connected to the side direction lateral branch pipeline, acquires a small amount of gas so that detect the humidity of the gas of the end of giving vent to anger of desicator 21. The dew point meter 22 is also called a micro-water meter, which is an instrument for measuring the dew condensation temperature of gas. Because each dewing temperature corresponds to a moisture content value of the environment atmosphere, the moisture content of the gas introduced into the tank body 1 can be reversely deduced according to the measured value of the dew point temperature, so that the drying degree of the gas is controlled. The utility model discloses let in jar body 1's gaseous dew point value less than or equal to-30 ℃ just can satisfy the requirement, in preferred technical scheme, gaseous dew point value is-35 ℃ to-45 ℃. The dew point meter 22 is a detection device which is subject to further problems with depreciation or accuracy requirements, and therefore the first valve 24 is required in the branch conduit to facilitate replacement or maintenance of the dew point meter 22. The first valve 24 includes, but is not limited to, a ball valve, a gate valve, and a butterfly valve. The first valve 24 is set to a normally open state.

The control unit collects the data detected by the dew point meter 22. The control unit can adopt a PLC, a singlechip or a single board computer. After the control unit collects the dew point temperature, a command of introducing gas or blocking the gas can be sent out according to the requirement of the dew point temperature. Specifically, the opening or closing of the gas source may be directly controlled, or the closing of a main valve 25 in the pipeline (fig. 1) may be controlled, the main valve 25 being generally installed at the foremost end of the system. However, it is not excluded that other valves may be used as the main switch for pipeline control, such as the second valve 211 and the third valve 214 shown in fig. 2. Of course, the control unit may also be a screen display or an alarm to remind an operator to manually switch or adjust after the dew point data is collected.

The utility model provides a concrete the control unit control scheme, see the intelligent control's that fig. 2 shows mixed agitator tank, desicator 21 give vent to anger the end with still be connected with electric three-way valve 26 on the pipeline between the air inlet 11, the control unit with electric three-way valve 26 electric connection, the first port of electric three-way valve 26 is connected with the end of giving vent to anger of desicator 21, electric three-way valve 26 second port with air inlet 11 intercommunication, electric three-way valve 26 third port exhaust passage connects.

When the detection value of the dew-point meter 22 is less than or equal to minus 30 ℃, the control unit sends a communication signal to communicate the first port and the second port of the electric three-way valve 26 and simultaneously close the communication between the first port and the third port of the electric three-way valve 26, and when the detection value of the dew-point meter 22 is greater than minus 30 ℃, the control unit sends a closing signal to communicate the first port and the third port of the electric three-way valve 26 and simultaneously close the communication between the first port and the second port of the electric three-way valve 26. In order to increase the maintainability of the system, a third valve 214 is further connected to the second port of the electric three-way valve 26, and a fourth valve is further connected to the third port of the electric three-way valve 26. The third valve 214 and the fourth valve are in a normally open state.

Further, a filter 23 is further arranged at the air inlet end of the dryer 21, and the filter 23 is mainly used for filtering oil, water and mechanical impurities, wherein the mechanical impurities refer to dust, sand, iron filings and the like in processing. The number of filters 23 may be selected according to the complexity of the use environment. The utility model discloses well preferred embodiment has adopted 3 filters 23, can ensure the cleanliness factor of filtering back gas on the one hand, and on the other hand has also avoided the inefficacy of arbitrary filter 23 to cause desicator 21, dew point hygrometer 22 etc. to be contaminated. In order to prolong the service life of the dryer 21 and reduce the workload of operators, it is preferable that an electromagnetic valve is disposed at the sewage discharge port of the filter 23, a timer is disposed in the control unit or has a timer independent of the controller, the control unit can control the opening and closing of the electromagnetic valve according to a time value preset in the timer, and the sewage and a part of impurities in the filter 23 can be discharged through the sewage discharge port within a time period during which the electromagnetic valve is opened, so as to prolong the service life of the filter 23. Preferably, the blowdown operation is performed once every 15-20 minutes with the multiple filters 23 staggered in blowdown time.

In a further embodiment, a pressure regulating valve is further disposed on the pipe 212 between the air outlet end of the dryer 21 and the air inlet 11. Since the tank 1 for agitation is not generally of a pressure-resistant structure, because of this, air with excessive moisture may react with the material of the curing agent to cause a problem of tank expansion. The air input by the air source is generally input by a pump body or the compressed air input by a compression tank. In order to avoid the tank expansion caused by the input gas, the pressure of the input gas must be adjusted to a certain value. And at the same time, to avoid too strong a flow to generate large flow disturbances in the tank 1, resulting in a large amount of exhaust gas being discharged from the tank 1, the preferred input gas pressure value is less than 0.3 bar. Meanwhile, a valve outlet of the pressure regulating valve is connected with a flowmeter 28, and the flowmeter 28 displays that the numerical value is 1.3 m/h-1.6 m for cultivation.

It is worth noting that, because the gas input of the compression tank and the gas input of the pump body have higher pressure, the pressure reduction is performed through a pressure regulating valve, and the ideal effect is difficult to achieve. Outside the scheme of adopting the better air-vent valve step-down of a performance, the utility model discloses consider cost and required precision, provide another embodiment. At the inlet of the pressure regulating valve, a regulating valve 29 is provided, through which regulating valve 29 the gas in the pipe must pass before it reaches the pressure regulating valve a 27. The regulator valve 29 includes, but is not limited to, a ball valve, a butterfly valve, or a gate valve. The operator can limit the amount of air flow through the regulator valve 29 by manipulating the degree of opening of the valve flap of the ball, butterfly or gate valve, so that the outlet pressure of the pressure regulating valve a27 and the reading of the flow meter 28 are both satisfactory.

Referring to fig. 3, the present invention further provides a technical solution of replacing the regulating valve 29 and the pressure regulating valve. This embodiment employs two pressure regulating valves, namely a pressure regulating valve a27 and a pressure regulating valve B210. The pressure regulating valve a27 and the pressure regulating valve B210 are connected in series to a pipe between the air outlet end of the dryer 21 and the air inlet 11. The flow meter 28 is connected to the valve outlet of the pressure regulating valve a 27. The gas firstly passes through the primary pressure reduction of the pressure regulating valve B210, and simultaneously the flow rate is controlled, so that the gas flow rate and the gas pressure reaching the pressure regulating valve A27 both meet the requirement of the working condition of the pressure regulating valve A27, and finally the pressure is reduced to be less than 0.3pa through the secondary pressure reduction of the pressure regulating valve A27.

It should be noted that, in fig. 2 to 3 of the present application, the solution in which the pressure regulating valve a27, the regulating valve 29 or the pressure regulating valve B210, and the flow meter 28 are located behind the electric three-way valve 26 is shown, but in practice, the solution in which the pressure regulating valve a27, the regulating valve 29 or the pressure regulating valve B210, and the flow meter 28 are located in front of the electric three-way valve 26 is not excluded, and those skilled in the art can easily adjust the position according to the solution of the present invention to achieve the appropriate purposes of gas dryness, pressure, and flow rate.

In order to improve the installation efficiency and reduce the installation difficulty, the utility model discloses preferably adopt hose 213 with air inlet 11 connects. And a second valve 211 is provided to facilitate separation of the pipe from the tank 1, thereby improving maintainability. The utility model provides a pipeline is preferred to be used nonrust steel pipe, hose 213 uses stainless steel hose equally, improves pipe-line system's corrosion resisting property.

Through the utility model discloses a scheme can guarantee that the interior moisture of curing agent agitator tank is less than 0.02%, has solved effectively that there is the jar that rises and the safe quality problem of sclerosis after the curing agent packing finished product.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications to the above described embodiments will be apparent to those skilled in the art and are within the scope of the invention.

Claims (10)

1. The utility model provides a mixing and stirring tank, is including the jar body that is equipped with agitating unit, the jar body is equipped with air inlet and gas vent, its characterized in that: the air inlet end of the dryer is connected with an external air source, the air outlet end of the dryer is connected with the air inlet and the dew point instrument through pipelines, and the control unit collects dew point instrument detection data.

2. A mixing and stirring tank as defined in claim 1, wherein: the dryer is characterized in that an electric three-way valve is further connected to a pipeline between the air outlet end and the air inlet, the control unit is electrically connected with the electric three-way valve, a first port of the electric three-way valve is communicated with the air outlet end of the dryer, a second port of the electric three-way valve is communicated with the air inlet, a third port of the electric three-way valve is connected with an exhaust channel, when a dew point instrument detection value is less than or equal to-30 ℃, the first port and the second port of the electric three-way valve are communicated, and when the dew point instrument detection value is greater than-30 ℃, the first port and the third port of the electric three-way valve are communicated.

3. A mixing and stirring tank as defined in claim 1, wherein: the dryer is a membrane dryer.

4. A mixing and stirring tank as defined in claim 1, wherein: and a filter is also arranged at the air inlet end of the dryer.

5. A mixing and stirring tank as defined in claim 4, wherein: the filter also comprises an electromagnetic valve and a timer, wherein the electromagnetic valve is connected with the sewage discharge port of the filter, and the control unit is electrically connected with the timer and the electromagnetic valve.

6. A mixing and stirring tank as defined in any one of claims 1 to 5, wherein: and a pressure regulating valve is also arranged on a pipeline between the air outlet end of the dryer and the air inlet, and a valve outlet of the pressure regulating valve is connected with a flowmeter.

7. A mixing and stirring tank as defined in claim 6, wherein: and a regulating valve is arranged at the valve inlet of the pressure regulating valve.

8. A mixing and stirring tank as defined in claim 6, wherein: the pressure regulating valve comprises two pipelines which are connected in series between the air outlet end of the dryer and the air inlet, and the flowmeter is connected to the valve outlet of the pressure regulating valve close to the air inlet.

9. A mixing and stirring tank as defined in any one of claims 1 to 5, wherein: the pipeline is a stainless steel pipeline.

10. A mixing and stirring tank as defined in any one of claims 7 to 8, wherein: the pressure regulating valve is connected with the air inlet through a stainless steel hose.

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