Volume-variable solution mixing device
Through the variable volume solution mixing device, using the guide plate and hollow shaft structure, the problems of uneven mixing of ammonia water and multi-effect organic amine solution and pressure relief affecting the ratio are solved, achieving a stable and uniform mixing effect and resource conservation.
Patent Information
- Application Number
- CN202422057160.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, when ammonia water and multi-effect organic amine solution are mixed, the mixing is uneven due to the density difference, and directly releasing the pressure to discharge the liquid affects the mixing ratio, making it impossible to obtain the desired solution.
A variable volume solution mixing device is used, with a guide plate and hollow shaft structure. Through the density difference and pressure change of the two liquids, the liquids are automatically adjusted and mixed in the mixing chamber to avoid excessive pressure affecting the mixing effect. Mixing blades and double helical blades are used for forced mixing.
It achieves uniform mixing of the two liquids, maintains a stable mixing ratio, avoids extra power consumption, saves resources, and can be regulated according to changes in the solution.
Smart Images
Figure CN223439589U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of chemical industry, concretely relates to a variable volume solution mixing device. BACKGROUND
[0002] Many heat sources needed in the chemical production process come from self-provided power plants, and ammonia water or liquid ammonia is basically used as a reducing agent before flue gas denitration of the power plant boiler. Since the denitration efficiency of ammonia water is low, some enterprises use multi-effect organic amine denitration reducing agents with high denitration efficiency, which have no irritating taste and are convenient to transport and store. However, since the price is high, the general chemical plants will use ammonia water and multi-effect organic amine solution for mixing to reduce the cost.
[0003] In order to mix the above two liquids, some enterprises try to use a static mixer. However, since the concentration of ammonia water is about 0.9 mol / L and the concentration of organic amine solution is about 1.1 mol / L, the mixing density difference is greater than 0.2, the heavier liquid may tend to deposit at the bottom, and the lighter liquid may float at the top, resulting in uneven mixing. In addition, when the pressure of one of the liquids changes, pressure relief is needed to protect the mixer. At present, the excess liquid is directly discharged through a pressure relief pipe, which will affect the mixing ratio of the two solutions and cannot obtain the required mixed solution. UTILITY MODEL CONTENTS
[0004] The utility model intends to provide a variable volume solution mixing device to solve the problem that the direct pressure relief discharge of part of the liquid to protect the mixing container will affect the solution ratio and cannot obtain the required mixed solution.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a variable volume solution mixing device, comprising: a mixing pipe body, a flow guide disc, and a hollow shaft with two closed ends, the pair of flow guide discs are arranged in the mixing pipe body, the pair of flow guide discs sequentially divide the mixing pipe body into a liquid inlet chamber, a strong mixing chamber, and a liquid outlet chamber, the liquid inlet chamber is divided into an upper chamber and a lower chamber by a partition, the upper chamber is provided with a first liquid inlet, the lower chamber is provided with a second liquid inlet, one end of the hollow shaft penetrates through the side wall of the liquid inlet chamber, the other end of the hollow shaft penetrates through the flow guide disc and is located in the liquid outlet chamber, the hollow shaft is rotationally connected with the side wall of the liquid inlet chamber, and the hollow shaft is rotationally connected with the flow guide disc, the upper chamber is provided with a first overflow pipe, the lower chamber is provided with a second overflow pipe, the first overflow pipe and the second overflow pipe are both in communication with the end of the hollow shaft close to the liquid inlet chamber, a plurality of groups of mixing blades are arranged on the hollow shaft, the mixing blades are located in the strong mixing chamber, the mixing blades are in communication with the hollow shaft, and the mixing blades are provided with liquid discharge holes on the back surface in the rotation direction thereof; double helical blades are further arranged on the hollow shaft, and the double helical blades are located in the strong mixing chamber.
[0006] The technical principle of the scheme is that two liquids with different densities flow into the first liquid inlet and the second liquid inlet through pipelines, then the two liquids enter the liquid inlet chamber, then the liquids enter the strong mixing chamber through the guide holes on the guide disc, the liquids make the double helix blades rotate, the double helix blades drive the hollow shaft to rotate, when the pressure of the upper chamber or the lower chamber is larger, the liquid from the current chamber connected to the overflow pipe enters the hollow shaft, the hollow shaft rotates under the action of the liquid in the liquid inlet chamber and the strong mixing chamber, and a low pressure area is formed behind the rotating hollow shaft during the rotation process, so that the liquid in the hollow shaft is smoothly discharged from the liquid discharge hole and enters the strong mixing chamber for mixing, and then enters the liquid outlet chamber from the other end of the guide disc and is discharged from the liquid outlet of the liquid outlet chamber.
[0007] The scheme has the following advantages: the overflow pipe and the hollow shaft are used to directly introduce the overflow liquid into the strong mixing chamber, so that the pressure in the liquid inlet chamber is not too high, and the mixing ratio of the two solutions is not affected; the liquid makes the hollow shaft rotate, and the space corresponding to the back of the mixing blade has a lower pressure when the mixing blade rotates, so that the liquid in the hollow shaft is conveniently transported to the strong mixing chamber; the liquid makes the mixing blade rotate, the mixing blade mixes the two liquids, and the mixing effect of the two liquids is improved, and no additional power is needed, which saves resources; by providing two liquid inlets, the liquid mixing ratio can be easily controlled, the mixing effect is guaranteed, and the solution can be adjusted according to the change.
[0008] Preferably, the position of the partition is set according to the mixing ratio of the solution. In this way, the two liquids can be quantitatively mixed in the liquid inlet chamber, and the quality of the mixed liquid is guaranteed.
[0009] Preferably, the installation angles of each group of mixing blades are different, and the multiple groups of mixing blades are used to cut the mixed liquid. In this way, the liquid is cut and mixed when passing through the mixing blades, and the mixing effect of the two liquids is better.
[0010] Preferably, the multiple groups of mixing blades are in the shape of a rice character.
[0011] Preferably, a protrusion is arranged at the edge of the mixing blade. The protrusion is arranged to improve the mixing effect of the two liquids.
[0012] Preferably, the protrusion is in the shape of a sawtooth.
[0013] Preferably, the first overflow pipe and the second overflow pipe are connected to the hollow shaft through the annular shell. In this way, the rotation of the hollow shaft does not affect the connection between the overflow pipe and the hollow shaft.
[0014] Preferably, the diameters of the first liquid inlet and the second liquid inlet are the same.
[0015] Preferably, the first liquid inlet is located above the second liquid inlet. The first liquid inlet is used to add a liquid with a higher density, and the second liquid inlet is used to add a liquid with a lower density. In this way, after the two liquids are added to the liquid inlet chamber, the liquid with a higher density will flow downward, and the liquid with a lower density will flow upward, which can enhance the mixing effect of the two liquids.
[0016] Preferably, the mixing blade is located between the liquid inlet chamber and the double helical blade. The liquid added to the strong mixing chamber via the mixing blade is mixed by the double helical blade and then discharged into the liquid outlet chamber, thereby achieving a better mixing effect of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of the hollow shaft, double helical blades and guide plate of an embodiment of the present utility model.
[0018] Figure 2 This is a schematic diagram of the second rotating shaft and rotating blade structure of an embodiment of the present utility model.
[0019] Figure 3 It is a cross-sectional schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION
[0020] The following is further described in detail through specific implementation methods:
[0021] The figure marks in the drawings of the specification include: mixing tube body 1, liquid inlet chamber 11, strong mixing chamber 12, liquid outlet chamber 13, first liquid inlet 14, second liquid inlet 15, liquid outlet 16, hollow shaft 2, first overflow pipe 3, second rotating shaft 4, second overflow pipe 5, guide plate 6, mixing blade 7, double helical blade 8, rotating blade 9.
[0022] Example:
[0023] A variable volume solution mixing device, such as the attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, it includes: a mixing tube body 1, a hollow shaft 2 and a guide plate 6, the guide plates 6 are arranged in pairs in the mixing tube body 1, and the paired guide plates 6 divide the mixing tube body 1 into a liquid inlet chamber 11, a strong mixing chamber 12 and a liquid outlet chamber 13 in sequence. In this embodiment, there are two guide plates 6, wherein, after the liquid enters the liquid inlet chamber 11, it enters the strong mixing chamber 12 along the guide hole of the first guide plate 6, and then enters the liquid outlet chamber 13 along the guide hole of the second guide plate 6.
[0024] The liquid inlet chamber 11 is divided into an upper chamber and a lower chamber by a partition, the upper chamber is provided with a first liquid inlet 14, the lower chamber is provided with a second liquid inlet 15, the first liquid inlet 14 and the second liquid inlet 15 are symmetrically arranged along the axis of the mixing pipe body 1, the liquid inlet chamber 11 is divided by a partition, and two liquid inlets are arranged, so that the liquid mixing ratio can be conveniently controlled, the mixing effect can be ensured, and adjustment and control can be made according to the change of the solution. The first liquid inlet 14 is used for adding a liquid with a larger density, and the second liquid inlet 15 is used for adding a liquid with a smaller density. In this way, after the two liquids are added to the liquid inlet chamber 11, the liquid with a larger density will flow downward, and the liquid with a smaller density will flow upward, so that the mixing effect of the two liquids can be enhanced. The diameter of the first liquid inlet 14 is the same as that of the second liquid inlet 15.
[0025] The side wall of the liquid outlet chamber 13 is provided with a liquid outlet 16, the liquid outlet 16 is located on the end face of the liquid outlet chamber 13, the axis of the liquid outlet 16 is the same as the axis of the mixing pipe body 1, and the liquid outlet 16 is arranged in the middle of the end face of the mixing pipe body 1, so as to facilitate the discharge of the mixed liquid.
[0026] The liquid outlet chamber 13 is provided with radial rotating blades 9, the rotating blades 9 are fixed on the second rotating shaft 4, and the two ends of the second rotating shaft 4 are rotatably arranged on the inner wall of the liquid outlet chamber 13. Among them, the rotating blades 9 are provided in multiple groups, and the rotating blades 9 are uniformly arranged in the liquid outlet chamber 13. The multiple groups of rotating blades 9 make the liquid mixing effect better. In the embodiment, three groups of rotating blades 9 are arranged.
[0027] One end of the hollow shaft 2 penetrates through the side wall of the liquid inlet chamber 11 and is rotatably connected with the side wall of the liquid inlet chamber 11, the other end of the hollow shaft 2 penetrates through the flow guide disc 6 and is located in the liquid outlet chamber 13, the hollow shaft 2 is rotatably connected with the flow guide disc 6, the upper chamber is provided with a first overflow pipe 3, and the lower chamber is provided with a second overflow pipe 5, the first overflow pipe 3 and the second overflow pipe 5 are both in communication with the hollow shaft 2 located at the end of the liquid inlet chamber 11, and the first overflow pipe and the second overflow pipe are in communication with the hollow shaft through an annular shell. In this way, the rotation of the hollow shaft will not affect the connection between the overflow pipe and the hollow shaft, and the liquid in the hollow shaft 2 can be conveniently conveyed into the strong mixing chamber. The two ends of the hollow shaft 2 are provided with closures, and the upper and lower surfaces of the hollow shaft 2 located outside the end of the liquid inlet chamber 11 are provided with corresponding through holes for mounting the first overflow pipe 3 and the second overflow pipe 5.
[0028] The hollow shaft 2 is provided with a plurality of groups of mixing blades 7, the mixing blades 7 are located in the strong mixing chamber 12, the mixing blades 7 are provided with liquid discharge holes on the back surface in the rotating direction of the mixing blades 7, the overflow liquid is directly introduced into the strong mixing chamber 12 by using the overflow pipe and the hollow shaft 2 and the like structure, so that the pressure in the liquid inlet chamber 11 is prevented from being too large, and meanwhile the mixing ratio of the two solutions is not affected. In the embodiment, the mixing blades 7 are provided in a hollow shape, when the mixing blades 7 rotate, the back surface (i.e. the surface provided with the liquid discharge holes) has a lower pressure, thereby forming a low pressure area, so that the liquid in the hollow shaft 2 is discharged from the liquid discharge holes into the strong mixing chamber 12.
[0029] Each group of mixing blades 7 is in a rice shape. The installation angles of each group of mixing blades 7 are different, and the plurality of groups of mixing blades 7 are used for cutting the mixed liquid. In this way, the liquid is cut and mixed when passing through the mixing blades 7, so that the mixing effect of the two liquids is better. The liquid is used to rotate the hollow shaft 2, when the mixing blades 7 rotate, the corresponding back surface space of the hollow shaft 2 has a lower pressure, so that the liquid in the hollow shaft 2 is conveniently transported into the strong mixing chamber; the liquid is used to rotate the mixing blades 7, the mixing blades 7 mix the two liquids, and the mixing effect of the two liquids is strengthened, and at the same time, no additional power is needed, and resources are saved.
[0030] The edge of the mixing blade 7 is provided with a protrusion. The protrusion is provided, so that the mixing effect of the two liquids is better. The protrusion is in a zigzag shape.
[0031] The hollow shaft 2 is also provided with double helical blades 8, the double helical blades 8 are located in the strong mixing chamber 12, and the mixing blades 7 are located between the liquid inlet chamber 11 and the double helical blades 8.
[0032] The position of the partition is set according to the mixing ratio of the solutions. In this way, the two liquids can be quantitatively mixed by the liquid inlet chamber 11, so as to guarantee the quality of the mixed liquid.
[0033] The specific implementation process is as follows:
[0034] When two liquids with large density difference need to be mixed (in this embodiment, the organic amine solution and the ammonia solution are mixed), the liquids with different densities are added to the first liquid inlet 14 and the second liquid inlet 15 through the pipelines, and then the two liquids enter the liquid inlet chamber 11, and then the liquids enter the strong mixing chamber 12 through the flow guide holes on the flow guide disc 6, and under the action of the liquids in the strong mixing chamber 12, the double helical blade 8 rotates, and the double helical blade 8 drives the hollow shaft 2 to rotate, when the pressure of the upper chamber or the lower chamber is large, the liquid enters the hollow shaft 2 from the overflow pipe connected to the current chamber, the hollow shaft 2 rotates under the action of the liquids in the liquid inlet chamber 11 and the strong mixing chamber 12, the overflow liquid in the hollow shaft 2 enters the strong mixing chamber 12 from the liquid outlet to be mixed, under the action of the liquids in the strong mixing chamber 12, the hollow shaft 2 rotates, and when the mixing blade 7 rotates, the corresponding back space of the mixing blade 7 has low pressure, so that the liquid in the hollow shaft 2 is conveniently transported to the strong mixing chamber, a plurality of mixing blades 7 cut and mix the liquids, so that the mixing effect of the liquids is better, and then the mixed liquids enter the liquid outlet chamber 13 from the other end of the flow guide disc 6, and are discharged from the liquid outlet 16 of the liquid outlet chamber 13.
[0035] The scheme utilizes the liquids to make the mixing blade 7 rotate, the mixing blade 7 mixes the two liquids, and the mixing effect of the two liquids is enhanced, without the need of increasing additional power, and resources are saved; the liquids make the hollow shaft 2 rotate, and when the mixing blade 7 rotates, a low-pressure area is formed in the back space corresponding to the mixing blade 7, so that the liquid in the hollow shaft 2 is conveniently discharged into the strong mixing chamber 12; the overflow liquid is directly introduced into the strong mixing chamber 12 through the overflow pipe and the hollow shaft 2, so that the pressure in the liquid inlet chamber 11 is prevented from being too large, and the ratio of the two solutions is not affected; by arranging two liquid inlets, the liquid mixing ratio can be conveniently controlled, the mixing effect can be ensured, and the solution can be adjusted according to changes.
[0036] The above only describes the embodiments of the present application, and the well-known specific technical solutions and / or common knowledge in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, in the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The protection scope of the present application should be subject to the content of the claims, and the specific embodiments and the like in the specification can be used to explain the content of the claims.
Claims
1. A variable volume solution mixing device, comprising a mixing tube, characterized in that: It also includes a guide plate and a hollow shaft closed at both ends, the guide plates are arranged in pairs in the mixing tube body, the paired guide plates divide the mixing tube body into a liquid inlet chamber, a strong mixing chamber and a liquid outlet chamber in sequence, the liquid inlet chamber is divided into an upper chamber and a lower chamber by a partition, the upper chamber is provided with a first liquid inlet, the lower chamber is provided with a second liquid inlet, one end of the hollow shaft passes through the side wall of the liquid inlet chamber, the other end of the hollow shaft passes through the guide plate and is located in the liquid outlet chamber, and the hollow shaft is rotatably connected to the side wall of the liquid inlet chamber The hollow shaft is rotatably connected to the guide plate, the upper chamber is provided with a first overflow pipe, and the lower chamber is provided with a second overflow pipe. The first overflow pipe and the second overflow pipe are both connected with the hollow shaft near the liquid inlet chamber end. The hollow shaft is provided with multiple groups of mixing blades, and the mixing blades are located in the strong mixing chamber. The mixing blades are connected to the hollow shaft, and the mixing blades are provided with drainage holes on the back side of the rotation direction; the hollow shaft is also provided with double helical blades, and the double helical blades are located in the strong mixing chamber.
2. A variable volume solution mixing device according to claim 1, characterized in that: The position of the partition is set according to the mixing ratio of the solutions.
3. The variable volume solution mixing device according to claim 1, characterized in that: The installation angle of each group of mixing blades is different, and the multiple groups of mixing blades are used to cut the mixed liquid.
4. A variable volume solution mixing device according to claim 3, characterized in that: The multiple groups of mixing blades are in a rice shape.
5. The variable volume solution mixing device according to claim 1, characterized in that: A protrusion is provided on the edge of the mixing blade.
6. The variable volume solution mixing device according to claim 5, characterized in that: The protrusion is sawtooth-shaped.
7. The variable volume solution mixing device according to claim 1, characterized in that: The first overflow pipe and the second overflow pipe are communicated with the hollow shaft through the annular shell.
8. The variable volume solution mixing device according to claim 1, characterized in that: The diameter of the first liquid inlet is the same as the diameter of the second liquid inlet.
9. The variable volume solution mixing device according to claim 1, characterized in that: The first liquid inlet is located above the second liquid inlet. The first liquid inlet is used to add liquid with a higher density, and the second liquid inlet is used to add liquid with a lower density.
10. The variable volume solution mixing device according to claim 1, characterized in that: The mixing blade is located between the liquid inlet chamber and the double helical blade.