Jet mixer

Abstract

The utility model provides a jet mixer, which belongs to the technical field of mixing equipment, and comprises a shell, and the shell is provided with a liquid inlet, a negative pressure cavity, a mixing section, a diffusion section and a liquid outlet; a medicine inlet connected with a medicine inlet pipe is formed in the shell above the joint of the negative pressure cavity and the mixing section; a first pressure sensor and a first flow sensor are arranged at the liquid inlet, a second pressure sensor is arranged at the liquid outlet, and a third pressure sensor, a second flow sensor and a flow regulating valve are arranged on the medicine inlet pipe; a controller is installed on the outer side of the shell and electrically connected with the first pressure sensor, the first flow sensor, the second pressure sensor, the third pressure sensor, the second flow sensor and the flow adjusting valve. According to the jet mixer, the pressure and the flow can be monitored and regulated in time through the controller, the pressure / flow sensor and the flow regulating valve, the dosage of chemicals can be accurately controlled, uniform mixing of materials in the shell can be ensured, and the chemical adding efficiency and the mixing effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mixing equipment technical field especially relates to a kind of jet mixer. BACKGROUND

[0002] In numerous chemical production processes (such as the beneficiation process of molybdenum copper ore, etc.), the addition and mixing of reagents are very important links, which will directly affect the production effect and cost. The traditional reagent addition method often relies on manual operation and control, which not only has high labor intensity and low efficiency, but also is difficult to accurately control the amount of reagent, and is easy to cause reagent waste and environmental pollution. At present, a jet device is commonly used for reagent addition. In the prior art, the jet device mainly consists of a liquid inlet, a negative pressure chamber, a reagent inlet, a mixing section, a diffusion section, a liquid outlet and other parts, and is a multipurpose device using jet negative pressure principle. However, the mixing effect of the traditional jet device is often closely related to the flow rate at the liquid inlet and the reagent inlet. When the flow rate at this point is unstable or cannot be timely controlled, the negative pressure effect of the negative pressure chamber will be unstable, which will cause the problem of small internal liquid contact area and uneven mixing of the liquid in the negative pressure chamber and the mixing section, resulting in poor mixing effect of the sucked reagent, low working efficiency of the jet device, and thus affecting the reagent addition and use effect. Therefore, the existing jet device has certain use limitations, and its structure needs to be further improved. SUMMARY

[0003] The utility model provides a kind of jet mixer to solve the problems of low reagent addition efficiency, poor accuracy, difficult to accurately control the amount of reagent in prior art, and the internal liquid of existing jet device is not mixed enough, and the mixing effect and use effect are poor due to the influence of external factors.

[0004] The utility model provides a kind of jet mixer, comprising: shell, liquid inlet, negative pressure chamber, mixing section, diffusion section and liquid outlet are sequentially connected and coaxially arranged on shell;A reagent inlet is formed on the shell above the connection between the negative pressure chamber and the mixing section, and the reagent inlet is connected with a reagent inlet pipe;A first pressure sensor and a first flow sensor are arranged at the liquid inlet, a second pressure sensor is arranged at the liquid outlet, a third pressure sensor, a second flow sensor and a flow regulating valve are arranged on the reagent inlet pipe;A controller is further installed on the outside of the shell, and the controller is electrically connected with the first pressure sensor, the first flow sensor, the second pressure sensor, the third pressure sensor, the second flow sensor and the flow regulating valve.

[0005] Further, the axis of the reagent inlet pipe is arranged at an acute angle with the axis of the shell, and the outlet end of the reagent inlet pipe faces one end of the liquid outlet of the shell.

[0006] Further, the outlet end axis of the medicine inlet pipe and the liquid inlet axis of the shell are at an angle of 40-70 degrees.

[0007] Further, the negative pressure cavity is a diameter-reducing structure, the mixing section is a constant-diameter structure, and the diffusion section is a diameter-increasing structure.

[0008] Further, a plurality of arc-shaped breaking rods are uniformly arranged on the inner walls of the mixing section and the diffusion section along the material flow direction.

[0009] Further, a mesh grid is fixedly embedded on the inner wall of the negative pressure cavity.

[0010] Further, a mixing assembly is arranged in the mixing section, the mixing assembly comprising a motor arranged outside the bottom of the shell, an output end of the motor being fixedly connected with a rotating rod, the rotating rod penetrating through the bottom wall of the shell and extending to the inside to be rotationally connected with the top wall of the shell, and a plurality of stirring plates being annularly arranged on the outer surface of the rotating rod.

[0011] Further, the breaking rods and the stirring plates are not in contact with each other.

[0012] The jet flow mixer provided by the utility model can timely monitor and control the pressure and flow of the main material and the medicament, realizes automatic control and operation, accurately controls the dosage of the medicament, reduces the labor intensity and the safety of the production process, improves the accuracy of medicament addition and the production efficiency, avoids the problems of unstable negative pressure effect of the negative pressure cavity and insufficient mixing of the internal material and the medicament caused by unstable main material flow or flow rate, and reduces the use cost of the medicament.

[0013] The inclination of the medicine inlet pipe can change the medicament delivery angle, reduce the medicament delivery resistance, enhance the pressure in the medicament delivery process, and improve the reliability and stability of the material delivery process.

[0014] The mixing assembly arranged in the mixing section can make the main material and the medicament flowing through the mixing section more fully mass transfer and mix, thereby improving the convenience of mixing different materials of the jet flow mixer. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 The structural schematic diagram of the fluidic mixer provided by an embodiment of the present application is shown in the figure.

[0017] Figure 2 The structural schematic diagram of the fluidic mixer provided by another embodiment of the present application is shown in the figure.

[0018] Figure 3 The cross-sectional installation schematic diagram of the breaking rod in the mixing section provided by an embodiment of the present application is shown in the figure.

[0019] Explanation of reference signs:

[0020] 1-housing, 2-negative pressure cavity, 3-mixing section, 4-diffusion section, 5-medicine inlet pipe, 6-controller, 21-liquid inlet, 22-first pressure sensor, 23-first flow sensor, 24-net-shaped grid, 31-motor, 32-rotating rod, 33-agitation plate, 41-liquid outlet, 42-second pressure sensor, 43-breaking rod, 51-medicine inlet, 52-third pressure sensor, 53-second flow sensor, 54-flow regulating valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0022] As Figure 1The utility model discloses a kind of jet mixers, comprising: shell 1, shell 1 is sequentially connected and coaxially arranged with liquid inlet 21, negative pressure cavity 2, mixing section 3, diffusion section 4 and liquid outlet 41;The shell 1 above the connecting place of negative pressure cavity 2 and mixing section 3 is provided with medicine inlet 51, medicine inlet 51 is connected with medicine pipe 5;First pressure sensor 22 and first flow sensor 23 are arranged at liquid inlet 21, second pressure sensor 42 is arranged at liquid outlet 41, third pressure sensor 52, second flow sensor 53 and flow regulating valve 54 are arranged on medicine pipe 5;Controller 6 is further installed on the outside of shell 1, and controller 6 is electrically connected with first pressure sensor 22, first flow sensor 23, second pressure sensor 42, third pressure sensor 52, second flow sensor 53 and flow regulating valve 54.

[0023] The above-mentioned various pressure sensors can be used to monitor the pressure of various materials in the shell 1 and the medicine pipe 5 in real time, and the flow sensor is used to monitor the real-time flow of the materials and medicaments injected into the shell 1 and the medicine pipe 5. The flow regulating valve 54 is used to real-time regulate the flow and dosage of the medicament, so as to timely control and adjust the amount of medicament added according to the flow change of the material at the liquid inlet 21, to avoid waste of medicament and environmental pollution. The controller 6 collects and processes the pressure and flow data, controls the opening degree of the flow regulating valve 54 according to the flow and pressure change of the main material in the shell 1, so as to achieve the purpose of adjusting the flow of the medicament in the medicine pipe 5, realize automatic control and operation, reduce the labor intensity and production process safety, improve the accuracy of medicament addition and production efficiency, and also avoid the problems of unstable negative pressure effect of the negative pressure cavity 2 and uneven mixing of internal materials and medicaments caused by unstable flow or flow rate of the main material.

[0024] The liquid inlet 21 is connected with the delivery pump of the main material, so that the main material can be conveyed along the shell 1 under the driving action of the delivery pump. The liquid outlet 41 is connected with the subsequent equipment. The medicine pipe 5 is connected with the medicament tank through the delivery pump. The main material forms a negative pressure effect at the negative pressure cavity 2, and the medicament in the medicine pipe 5 is sucked into the mixing section 3. Then the main material and the medicament are mass transfered and mixed in the mixing section 3. The formed mixture is discharged through the diffusion section 4 and the liquid outlet 41. The pressure and flow can be monitored and regulated in time through the controller 6 and the pressure / flow sensor and the flow regulating valve 54, and the dosage of the medicament is accurately controlled, which improves the accuracy of medicament addition, reduces the use cost of medicament, and also ensures that the materials in the shell 1 are uniformly mixed, so that the sucked medicament has better mixing effect, and the efficiency and mixing effect of medicament addition are improved.

[0025] As Figure 2, preferably, the axis of the medicine inlet pipe 5 is arranged at an acute angle with the axis of the shell 1, and the outlet end of the medicine inlet pipe 5 is arranged towards one end of the liquid outlet 41 of the shell 1. The medicine inlet pipe 5 and the shell 1 can be welded or threadedly connected, or can be fixed in other forms. The outlet end of the medicine inlet pipe 5 is arranged to be inclined towards the direction of the liquid outlet 41, which can change the angle of the medicine delivery, reduce the resistance of the medicine delivery, enhance the pressure in the medicine delivery process, and at the same time reduce the resistance to the main material sent by the liquid inlet 21, thereby improving the reliability and stability of the material delivery process.

[0026] , preferably, the angle between the axis of the outlet end of the medicine inlet pipe 5 and the axis of the liquid inlet 21 of the shell 1 is 40°-70°. The medicine enters the shell 1 at an inclined angle and mixes with the main material, and the medicine is not easy to accumulate at the connection between the negative pressure cavity 2 and the mixing section 3, facilitating its transportation with the main material to the mixing section 3. In other embodiments, the specific degrees of the above-mentioned angle can also be selected and adjusted according to actual needs.

[0027] As shown in Figure 2 , preferably, the negative pressure cavity 2 is a reduced-diameter structure with gradually decreasing diameter, the mixing section 3 is a constant-diameter structure, and the diffusion section 4 is an expanded-diameter structure with gradually increasing diameter. After the main material enters the negative pressure cavity 2 through the liquid inlet 21, the reduced-diameter structure compresses the flow area of the main material to increase its speed, and the expanded-diameter structure of the diffusion section 4 increases the liquid outlet flow, so that the connection between the negative pressure cavity 2 and the mixing section 3 forms a negative pressure effect, and the medicine in the medicine inlet pipe 5 can be quickly sucked into the shell 1 for mixing, which is beneficial to improve the efficiency of medicine addition and mixing.

[0028] As shown in Figure 3 , preferably, a plurality of arc-shaped breaking rods 43 are uniformly arranged on the inner walls of the mixing section 3 and the diffusion section 4 along the direction of the material flow. The breaking rods 43 arranged on the mixing section 3 and the diffusion section 4 can increase the turbulence degree of the main material and the medicine, thereby increasing the contact area and mixing degree of the two materials, so that the main material and the medicine can be mixed more uniformly under the disturbance of the breaking rods 43, thereby improving the mixing efficiency, and also avoiding the re-separation and stratification of the two materials in the subsequent conveying process. The breaking rods 43 on the mixing section 3 and the diffusion section 4 can be separately arranged on the two sections, or can be directly connected to form a strip, which can achieve the disturbance effect.

[0029] As shown in Figure 2Preferably, the inner wall of the negative pressure cavity 2 is fixedly embedded with a mesh grid 24. The mesh grid 24 can disturb the flow state of the main material entering the liquid inlet 21, and can divide and break the bubbles, large particles and other materials entrained in the main material, can enhance the Venturi effect in the negative pressure cavity 2, and can also increase the mass transfer and mixing effect between the main material and the subsequent suction of the medicament, thereby improving the working efficiency of the jet mixer. The mesh grid 24 can be detachably mounted on the inner wall of the negative pressure cavity 2, and the porosity of the mesh grid 24 can be selected by those skilled in the art according to the particle size in the main material.

[0030] As Figure 2 Preferably, the mixing section 3 is internally provided with a mixing assembly, the mixing assembly comprising a motor 31 arranged outside the bottom of the shell 1, the output end of the motor 31 being fixedly connected with a rotating rod 32, the rotating rod 32 penetrating through the bottom wall of the shell 1 and extending to the inside and being rotatably connected with the top wall of the shell 1, and the outer surface of the rotating rod 32 being fixedly connected with a plurality of stirring plates 33 arranged in an annular array. More preferably, the crushing rod 43 is not in contact with the stirring plate 33.

[0031] The motor 31 of the mixing assembly drives the rotating rod 32 to rotate, so that the stirring plate 33 rotates, which can make the mass transfer and mixing between the main material and the medicament flowing through the mixing section 3 more sufficient, thereby improving the convenience of mixing different materials of the jet mixer.

[0032] The utility model also includes other components that can make the jet mixer work normally, and these devices or components all adopt conventional technical means in the art. In addition, the devices and components not limited in the utility model all adopt conventional technical means in the art, and in the specific implementation process, appropriate device or component model can be selected according to specific working scene.

[0033] It should be noted that through practice, the jet mixer in the embodiment is not limited to be used in liquid-liquid mixing working conditions, and can also be used in gas-liquid mixing working conditions, such as aeration tank, aerobic biochemical system and the like.

[0034] The jet flow mixer of the utility model, specific work time, liquid inlet 21 and the delivery pump of main material are connected, so that the main material can be transported along the shell 1 under the driving action of the delivery pump, the main material passes through the liquid inlet 21 and is disturbed in the flow state by the mesh grid 24 in the negative pressure chamber 2, breaks the bubble, large particle material and the like entrained therein, can enhance the venturi effect in the negative pressure chamber 2, after the main material enters the negative pressure chamber 2, the flow area of the main material is compressed by using its reduced diameter structure, so that the main material is accelerated, so that the main material forms the negative pressure effect in the negative pressure chamber 2 and the connecting place of the negative pressure chamber 2 and the mixing section 3, and the medicament in the medicine inlet pipe 5 is sucked into the mixing section 3.The medicine inlet pipe 5 is connected with the medicament storage tank through the delivery pump, and the outlet end of the medicine inlet pipe 5 is inclinedly arranged towards the liquid outlet 41, the medicament enters the shell 1 at an inclined angle, then the main material and the medicament are mass transfered and mixed in the mixing section 3, the motor 31 of the mixing assembly drives the rotating rod 32 to rotate, so that the stirring plate 33 rotates, the main material and the medicament flowing through the mixing section 3 can be mass transfered and mixed more fully, thereby the mixing effect between the materials is enhanced.The formed mixed material is discharged through the diffusion section 4 and the liquid outlet 41, and the breaking rod 43 arranged in the mixing section 3 and the diffusion section 4 can increase the turbulence degree of the main material and the medicament, thereby increasing the contact area and the mixing degree of the two materials, so that the main material and the medicament can be mixed more uniformly under the disturbance of the breaking rod 43, the mixing efficiency is improved, finally the mixed material is sent into the subsequent equipment through the liquid outlet 41, and the next working condition production is started.

[0035] When the first pressure sensor 22 and the first flow sensor 23 monitor that the flow and the delivery pressure of the main material at the liquid inlet 21 change, the second pressure sensor 42 at the liquid outlet 41 also monitors the change of the delivery pressure, after the pressure data is transmitted to the controller 6, the controller 6 judges the change of the negative pressure effect in the negative pressure chamber 2 according to the pressure difference monitored by the first pressure sensor 22 and the second pressure sensor 42, and adjusts the opening of the flow regulating valve 54 on the medicine inlet pipe 5 according to the flow of the main material, so as to control the flow and the delivery pressure of the medicament in the medicine inlet pipe 5, accurately control the amount of medicament, improve the accuracy and production efficiency of medicament addition, reduce the use cost of medicament, and also avoid waste of medicament and environmental pollution.

[0036] It should be noted that in the utility model, the detailed structure of part of the equipment is not described in detail, but it is the prior art known to those skilled in the art, so it will not be repeated here. In addition, the parts not involved in the device are the same as or can be realized by the prior art.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fluidic mixer, characterized by, The utility model relates to a medicine mixing device, which comprises: a shell, a liquid inlet, a negative pressure cavity, a mixing section, a diffusion section and a liquid outlet being sequentially connected and coaxially arranged on the shell; a medicine inlet is formed on the shell above the connection between the negative pressure cavity and the mixing section, and a medicine inlet pipe is connected to the medicine inlet; a first pressure sensor and a first flow sensor are arranged at the liquid inlet, a second pressure sensor is arranged at the liquid outlet, a third pressure sensor, a second flow sensor and a flow regulating valve are arranged on the medicine inlet pipe, and a controller is further installed on the outside of the shell and electrically connected to the first pressure sensor, the first flow sensor, the second pressure sensor, the third pressure sensor, the second flow sensor and the flow regulating valve.

2. The fluidic mixer of claim 1, wherein, The axis of the medicine inlet pipe is arranged at an acute angle with the axis of the shell, and the outlet end of the medicine inlet pipe is directed towards one end of the liquid outlet of the shell.

3. The fluidic mixer of claim 2, wherein, The included angle between the outlet end axis of the medicine inlet pipe and the axis of the liquid inlet of the shell is 40-70°.

4. The fluidic mixer of claim 1, wherein, The negative pressure cavity is a reduced diameter structure with gradually reduced diameter, the mixing section is a constant diameter structure, and the diffusion section is an expanded diameter structure with gradually increased diameter.

5. The fluidic mixer of claim 1, wherein, A plurality of arc-shaped breaking rods are uniformly arranged on the inner walls of the mixing section and the diffusion section along the material flow direction.

6. The fluidic mixer of claim 1, wherein, A mesh grid is fixedly embedded on the inner wall of the negative pressure cavity.

7. The fluidic mixer of claim 5, wherein, A mixing assembly is arranged inside the mixing section, which comprises a motor arranged on the outside of the bottom of the shell, a rotating rod fixedly connected to the output end of the motor, the rotating rod penetrating through the bottom wall of the shell and extending to the inside and being rotationally connected to the top wall of the shell, and a plurality of annularly arranged stirring plates fixedly connected to the outer surface of the rotating rod.

8. The fluidic mixer of claim 7, wherein, The breaking rods and the stirring plates are not in contact with each other.

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