CN212819873U

CN212819873U - Solid-liquid mixing reaction device

Info

Publication number: CN212819873U
Application number: CN202021420793.XU
Authority: CN
Inventors: 张健; 李娟�; 李成果; 张伟
Original assignee: Hebei Chengxin Co ltd
Current assignee: Hebei Chengxin Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-30
Anticipated expiration: 2030-07-17

Abstract

The utility model provides a solid-liquid mixing reaction device, which comprises a cylinder body, a rotating shaft, a stirring piece and a shearing piece; the barrel is provided with a reaction cavity, and the top and the bottom of the barrel are respectively provided with a feeding port and a discharging port which are communicated with the reaction cavity; the bottom of the cylinder body is also provided with a discharging component communicated with the discharging hole. The rotating shaft is arranged in the reaction cavity in a rotating mode around the axis of the rotating shaft, and one end of the rotating shaft extends out of the barrel and is connected with a rotating driving assembly; the stirring piece is fixedly arranged on the rotating shaft and is used for stirring and upwards driving the materials; the shearing part is arranged on the rotating shaft, is positioned above the stirring part and is used for shearing materials. When the material takes place the reaction, drive the axis of rotation through rotating the drive assembly and rotate, make stirring piece drive material rebound, the solid phase material of shearing piece with rebound is cuted, avoids the solid phase material to subside, makes the material can fully participate in the reaction, compares with prior art, the utility model provides a pair of solid-liquid mixing reaction device has improved solid-liquid mixing reaction's reaction efficiency and conversion rate.

Description

Solid-liquid mixing reaction device

Technical Field

The utility model belongs to the technical field of the solid-liquid mixing equipment, more specifically say, relate to a solid-liquid mixing reaction unit.

Background

In industrial chemical reactions, there is a reaction in which a solid phase and a liquid phase are mixed and contacted, wherein the solid phase may be a reaction raw material or a reaction catalyst. In either type, the solid and liquid phases are required to be well mixed, and the mixing degree of the two phases has a very significant influence on the reaction conversion rate and the product quality.

The degree of solid-liquid mixing is influenced by various factors, the most critical of which is the contact area of the solid and liquid phases. With the continuous enlargement of the scale of industrial devices, the defect of insufficient mixing caused by small material contact area is more obvious; for example, in the synthesis of benzoyl nitrile, benzoyl chloride and solid sodium cyanide are used as raw materials, toluene is used as a solvent, benzoyl chloride and toluene are in a liquid phase under reaction conditions, sodium cyanide is in a solid phase, and sodium cyanide has large particles and is easy to absorb moisture and agglomerate, so that the sodium cyanide can generate a sedimentation phenomenon in the reaction process and is not beneficial to the progress of a mixing reaction.

On a laboratory scale, a good mixing effect can be achieved easily, and the reaction efficiency is improved; however, with the enlargement of the reaction scale, the mixing effect of the solid phase and the liquid phase is worse and worse, and the reaction conversion rate is greatly reduced and the product quality is greatly reduced by adopting a standard stirring reaction device under the same reaction condition, so that the industrial application of the technology is limited to a certain extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solid-liquid mixing reaction device aims at solving the solid-liquid mixing reaction and when being applied to the industrial production, because the solid phase takes place to subside and reduces the condition of reaction efficiency and conversion rate.

In order to achieve the above object, the utility model adopts the following technical scheme: provided is a solid-liquid mixing reaction apparatus comprising:

a barrel having a reaction chamber; the top of the barrel is provided with a feeding port which is communicated with the reaction cavity and used for inputting materials into the reaction cavity, the bottom of the barrel is provided with a discharging port which is communicated with the reaction cavity, and the bottom of the barrel is also provided with a discharging assembly which is communicated with the discharging port and used for outputting the materials;

the rotating shaft is arranged in the reaction cavity in a rotating mode around the axis of the rotating shaft, one end of the rotating shaft extends out of the barrel, and the extending end of the rotating shaft is connected with a rotating driving assembly;

the stirring piece is fixedly arranged on the rotating shaft and is used for stirring the materials and driving the materials to move upwards along the axial direction of the rotating shaft; and

and the shearing part is fixedly arranged on the rotating shaft, is positioned above the stirring part and is used for shearing the materials moving upwards.

As another embodiment of the present application, the stirring member includes:

the stirring blades are fixedly arranged on the rotating shaft and are spirally distributed along the axial direction of the rotating shaft;

when the stirring blades rotate around the rotating shaft, the stirring blades drive the materials to spirally rise.

As another embodiment of the present application, the shearing member includes:

the connecting plate is fixedly arranged on the rotating shaft and is positioned above the stirring blades; and

the plurality of shearing blades are fixedly arranged on the bottom surface of the connecting plate and are distributed along the circumferential direction of the connecting plate; the blade surface of the shearing blade is used for abutting against the materials which are spirally lifted above the stirring blade, so that the materials are sheared.

As another embodiment of this application, the periphery wall of connecting plate with the reaction chamber inner wall butt.

As another embodiment of the present application, the shearing blades are provided with a plurality of rows in a radial direction of the connecting plate.

As another embodiment of the present application, the discharging assembly includes:

the discharge pipe is inserted into the discharge port, and one end of the discharge pipe extends out of the barrel; and

and the flow limiting valve is fixedly arranged at the extending part of the discharge pipe and is used for controlling the flow of the material passing through the discharge pipe.

As another embodiment of this application, the periphery wall of discharging pipe with the inner wall of discharge gate links to each other.

As another embodiment of the present application, the rotational drive assembly includes:

the rotating motor is fixedly arranged on the top surface of the barrel, and the power output end of the rotating motor extends downwards.

As another embodiment of this application, the diapire of reaction chamber adopts the inclined plane, is used for driving material in the reaction chamber to the discharge gate flows.

As another embodiment of the present application, the cylinder is connected with a supporting seat for supporting on the ground.

The utility model provides a pair of solid-liquid mixing reaction device's beneficial effect lies in:

when solid-liquid mixing reaction is carried out, materials (mixture of solid-phase materials and liquid-phase materials) are input into the reaction cavity from the material inlet, and the rotation driving assembly is started to enable the rotation shaft to rotate around the axis of the rotation driving assembly; then, the material is stirred by the stirring piece and is driven upwards, so that the solid-phase material is sheared by the shearing piece.

In the above process, the solid phase material to be settled (i.e. to be moved downward) is continuously sheared to be smaller, and the mixing reaction rate is accelerated by the stirring action of the stirring member.

After the reaction, make the material export outside the barrel by the discharge gate through ejection of compact subassembly, realize the collection of material after the mixture.

Compared with the prior art, the utility model provides a pair of solid-liquid mixing reaction device can cut the solid phase material, avoids the solid phase material to subside to the bottom of barrel and the unable condition of participating in the reaction, has improved solid-liquid mixing reaction's efficiency and conversion rate.

Drawings

Fig. 1 is a schematic structural diagram of a solid-liquid mixing reaction device provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a connection structure of a rotating shaft, a stirring member and a shearing member according to an embodiment of the present invention;

fig. 3 is a structural cross-sectional view of a solid-liquid mixing reaction device provided by the embodiment of the present invention.

In the figure, 1, a cylinder; 11. a reaction chamber; 12. a feeding port; 13. a discharge port; 14. a discharge assembly; 141. a discharge pipe; 142. a flow-limiting valve; 143. receiving a material part; 15. a supporting seat; 2. a rotating shaft; 21. rotating the motor; 3. stirring blades; 4. a cutting member; 41. a connecting plate; 42. and (4) shearing the blade.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to fig. 3, a solid-liquid mixing reaction apparatus according to the present invention will now be described. The solid-liquid mixing reaction device comprises a cylinder body 1, a rotating shaft 2, a stirring piece and a shearing piece 4.

The cylinder body 1 generally adopts a cylindrical structure, and a reaction cavity 11 for introducing solid-phase materials and liquid-phase materials is arranged inside the cylinder body; for convenience of description, in the present embodiment, "solid-phase material" and "liquid-phase material" may be collectively referred to as "material". A feeding port 12 communicated with the reaction cavity 11 is formed in the top of the barrel 1, and a user can input materials into the reaction cavity 11 through the feeding port 12; the bottom of barrel 1 is equipped with the discharge gate 13 with reaction chamber 11 intercommunication to and the ejection of compact subassembly 14 with discharge gate 13 intercommunication, and the material that is in reaction chamber 11 can be exported outside barrel 1 through ejection of compact subassembly 14.

The rotating shaft 2 is arranged in the reaction chamber 11 in a way of rotating around the self axis, and particularly the self axis is collinear with the central axis of the barrel 1. One end of the rotating shaft 2 extends out of the barrel 1 and is connected with a rotating driving assembly, as shown in fig. 1, the upper end of the rotating shaft 2 extends out of the top surface of the barrel 1, and the rotating driving assembly is supported on the top surface of the barrel 1 and is used for supporting the rotating shaft 2 in the vertical direction and driving the rotating shaft 2 to rotate.

The stirring piece is fixed to be set up on axis of rotation 2, and along with the rotation of axis of rotation 2, this stirring piece can stir the material and drive the axial rebound of material along axis of rotation 2 to avoid solid phase material to subside.

The shearing part 4 is fixedly arranged on the rotating shaft 2 and is used for shearing the solid-phase materials moving upwards. Specifically, the solid phase material that moves up has certain speed, when the solid phase material hits on shearing piece 4, can be sheared by shearing piece 4 and diminish to can be more abundant take place solid-liquid mixing reaction, and slowed down the settling velocity of this solid phase material.

When solid-liquid mixing reaction is carried out, materials are input into the reaction cavity 11 from the material inlet 12, and the rotation driving assembly is started to enable the rotation shaft 2 to rotate around the axis of the rotation shaft; then, the material is stirred by the stirring member and is carried upwards, so that the solid material therein is sheared by the shearing member 4.

In the above process, the solid phase material to be settled (i.e. to be moved downwards) is continuously sheared by the shearing part 4 to reduce the volume, and the mixing reaction rate is accelerated by the stirring action of the stirring part.

After the reaction is finished, the materials are output to the outside of the barrel body 1 through the discharge hole 13 through the discharge assembly 14, and the collection of the mixed materials is realized.

To sum up, the utility model provides a pair of solid-liquid mixing reaction device compares with prior art, can cut the solid phase material through shearing 4, avoids the solid phase material to subside to barrel 1's bottom and the unable condition of participating in the reaction, has improved the efficiency and the conversion rate of solid-liquid mixing reaction.

It should be added that the hole formed by the rotating shaft 2 penetrating the top surface of the cylinder 1 needs to be sealed, and the specific sealing mode can be bearing sealing; specifically, the bearing is sleeved between the rotating shaft 2 and the through hole, so that the size of a gap between the through hole and the rotating shaft 2 is reduced on the premise of not influencing the rotation of the rotating shaft 2.

Please refer to fig. 2 and fig. 3 together, as a specific embodiment of the solid-liquid mixing reaction device provided by the present invention, the stirring member includes a plurality of stirring blades 3, the stirring blades 3 are all fixedly disposed on the rotation shaft 2 and protrude along the radial direction of the rotation shaft 2, and each stirring blade 3 has an included angle with the axial direction of the rotation shaft 2 along the axial extending direction of the rotation shaft 2.

Wherein, a plurality of stirring leaf 3 are the heliciform along the axial of axis of rotation 2 and distribute, when axis of rotation 2 rotated around self axis, the surface of stirring leaf 3 carried the material along axis of rotation 2's circumferential displacement rather than the contact, and the material can be along with stirring leaf 3 and axis of rotation 2's contained angle direction and rebound (that is to say with axis of rotation 2 as the center pin and rise soon), finally falls on shearing piece 4.

By adopting the technical scheme, the stirring blades 3 drive the materials to move around the circumferential direction of the rotating shaft 2, so that the solid-phase materials and the liquid-phase materials are mixed more fully, and the reaction rate of solid-liquid mixing reaction is improved; meanwhile, the stirring blades 3 can drive the materials to move upwards, so that more materials move onto the shearing pieces 4 to be sheared, the shearing efficiency of the materials is improved, and the stirring blades 3 can drive the materials to move upwards to improve the reaction rate of the solid-liquid mixing reaction due to the fact that the sheared solid-phase materials and the sheared liquid-phase materials have higher reaction rate.

It should be added that when the rotation direction of the rotation shaft 2 is opposite, the stirring blade 3 drives the material to move downwards, so that the material is closer to the discharge port 13; that is to say, after the solid-liquid mixing reaction is accomplished, the accessible back drive axis of rotation 2 realizes the transfer of material to discharge gate 13, makes the material can be more abundant export outside barrel 1.

Referring to fig. 2 and 3 together, as an embodiment of the solid-liquid mixing reaction device provided by the present invention, the shearing member 4 includes a connecting plate 41 and a plurality of shearing blades 42.

The connecting plate 41 is fixedly disposed on the rotating shaft 2, specifically above the stirring vanes 3, and is located inside the reaction chamber 11.

The plurality of cutting blades 42 are fixedly disposed on the bottom surface of the connecting plate 41 and distributed along the circumferential direction of the connecting plate 41 to increase the cutting area of the cutting blades 42. When the materials are stirred by the stirring blades 3 and are rotated, the blade surfaces of the shearing blades 42 can shear the materials; that is, the orientation of the shearing blade 42 is arranged corresponding to the rotating direction of the material, so that the material can be abutted against the edge surface of the shearing blade 42 when rotating, and is sheared into a material component with a smaller volume by the shearing blade 42.

By adopting the technical scheme, the shearing blade 42 can shear the material, and the connecting plate 41 provides a plane space for suspending the shearing blade 42, so that the material can be more stably positioned on the rotating shaft 2 when being sheared by the shearing part 4; that is to say, the integrated configuration of connecting plate 41 and shear blade 42 can improve the structural strength of this device when cuting the solid phase material, avoids the device to take place the damage when cuting the solid phase material, has improved the structural stability of this device when in-service use.

Referring to fig. 2 and fig. 3, as a specific embodiment of the solid-liquid mixing reaction device provided by the present invention, the outer peripheral wall of the connecting plate 41 abuts against the inner wall of the reaction chamber 11, when the connecting plate 41 generates a tendency of loosening along the horizontal direction, the inner wall of the reaction chamber 11 can resolve the tendency, thereby avoiding the dislocation of the connecting plate 41.

Through adopting above-mentioned technical scheme, improved the structural stability of this device to and the structural reliability of during actual operation.

Referring to fig. 2 and 3 together, as an embodiment of the solid-liquid mixing reaction device of the present invention, a plurality of rows of shear blades 42 are provided along a radial direction of the connecting plate 41.

By adopting the technical scheme, the shearing area of the shearing blade 42 is increased, the shearing efficiency and the shearing rate of the shearing piece 4 to the solid-phase materials are improved, the promotion effect of the device on the solid-liquid mixing reaction is further improved, and the conversion rate and the efficiency of the solid-liquid reaction are further ensured.

It should be added that, in order to further enhance the shearing action of the shearing blades 42 on the solid-phase material, the blade faces of the shearing blades 42 in each row are oriented in the same direction, and all are oriented in the moving direction of the material when the material is lifted to be separated from the stirring blades 3.

Referring to fig. 1 and fig. 3, as an embodiment of the solid-liquid mixing reactor of the present invention, the discharging assembly 14 includes a discharging pipe 141 and a flow limiting valve 142.

The discharge pipe 141 is inserted into the discharge hole 13, a pipeline of the discharge pipe 141 is communicated with the reaction cavity 11, and one end of the discharge pipe extends out of the barrel body 1; in actual use, the material at the discharge port 13 can be output to the outside of the barrel 1 through the discharge pipe 141.

The flow limiting valve 142 is fixedly installed at an extended portion of the discharge pipe 141, and is used for controlling the flow rate of the material passing through the discharge pipe 141. When the flow limiting valve 142 is in a closed state, the material in the reaction cavity 11 cannot be output to the outside of the barrel 1 through the discharge pipe 141; when the flow restriction valve 142 is in the open state,

it should be noted that the flow-limiting valve 142 is usually a manual pinch valve, and the opening and closing degree of the valve is adjusted to control the flow rate of the material flowing out of the barrel 1 through the material outlet pipe 141.

The discharging assembly 14 is usually used in combination with a receiving member 143, the receiving member 143 has a barrel-shaped structure with an upper opening, the discharging pipe 141 is inserted into the receiving member 143, and after the material flows out from the discharging pipe 141, the material is collected in the receiving member 143.

Referring to fig. 3, as a specific embodiment of the solid-liquid mixing reactor provided by the present invention, the outer peripheral wall of the discharging pipe 141 is connected to the inner wall of the discharging port 13, and during the preparation, the discharging pipe 141 is made of the same metal material as the barrel 1, and the discharging pipe 141 and the barrel are usually connected by welding.

Through adopting above-mentioned technical scheme, avoid the material by discharge pipe 141 and discharge gate 13 between the clearance in flow, guaranteed barrel 1's seal, make more materials can participate in the reaction, improved reaction rate and material utilization ratio.

Referring to fig. 1 and fig. 3 together, as a specific embodiment of the solid-liquid mixing reaction device provided by the present invention, the rotation driving assembly includes a rotation motor 21, the rotation motor 21 is fixedly disposed on the top surface of the barrel 1, and the power output end of the rotation motor extends downward and is connected to the extending end of the rotation shaft 2.

Through adopting above-mentioned technical scheme, rotation motor 21 can drive axis of rotation 2 and rotate, moreover because rotation motor 21 is outside barrel 1, consequently the material can not take place the contact with rotation motor 21, has prolonged rotation motor 21's life.

Referring to fig. 3, as a specific embodiment of the solid-liquid mixing reaction device provided by the present invention, the bottom wall of the reaction chamber 11 adopts an inclined plane for driving the material in the reaction chamber 11 to flow to the discharge port 13, specifically, the bottom wall of the reaction chamber 11 has a high point and a low point, the bottom surface of the reaction chamber 11 near the discharge port 13 is the low point, other parts of the bottom surface of the reaction chamber 11 are the high points, and a smooth curved surface transition is adopted between the high point and the low point.

Through adopting above-mentioned technical scheme, the material in the reaction chamber 11 can be followed inclined plane flow direction discharge gate 13, avoids the material in the reaction chamber 11 to pile up, has improved the discharge efficiency of the utilization ratio of material and the interior misce bene of barrel 1.

Referring to fig. 1 and 3 together, as an embodiment of the solid-liquid mixing reaction device provided by the present invention, the cylinder 1 is connected to a supporting seat 15 for supporting on the ground. The support base 15 includes a connection part wrapped around the outer circumferential wall of the cylinder 1, and a support part supported on the ground and connected to the connection part; it should be noted that, in order to ensure the stable support of the supporting seat 15 to the barrel 1, the supporting portion is usually provided in a plurality and distributed equidistantly along the circumferential direction of the connecting portion. Moreover, the supporting part is usually set up in discharge gate 13 department by dodging to avoid the supporting part to influence the normal output process of the interior material of barrel 1.

By adopting the technical scheme, the barrel body 1 is supported to a certain height, and a certain distance is kept between the discharge hole 13 and the ground, so that the material can flow downwards after being output to the outside of the barrel body 1, and the material collection is convenient; moreover, the barrel 1 can be stably placed through the supporting seat 15, so that the phenomenon that the barrel 1 is toppled over when reaction occurs in the barrel 1 is avoided, and the stability of the mixing reaction process is ensured.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A solid-liquid mixing reaction apparatus, characterized by comprising:

2. A solid-liquid mixing reaction apparatus according to claim 1, wherein said stirring member comprises:

3. The solid-liquid mixing reaction device according to claim 2, wherein the shearing member comprises:

4. A solid-liquid mixing reaction device according to claim 3, wherein the outer peripheral wall of the connecting plate abuts against the inner wall of the reaction chamber.

5. A solid-liquid mixing reactor according to claim 3 wherein said shear blades are arranged in a plurality of rows in the radial direction of said web.

6. The solid-liquid mixing reaction device according to claim 1, wherein the discharging member comprises:

7. The solid-liquid mixing reaction device according to claim 6, wherein the outer peripheral wall of the discharge pipe is connected to the inner wall of the discharge port.

8. A solid-liquid mixing reactor apparatus according to claim 1 wherein said rotary drive assembly comprises:

9. The solid-liquid mixing reaction device of claim 1, wherein the bottom wall of the reaction chamber is an inclined surface for driving the material in the reaction chamber to flow to the discharge port.

10. The solid-liquid mixing reactor according to claim 1, wherein said cylinder is connected to a support base for supporting on the ground.