A hydraulic stirring device and a reaction kettle

Abstract

The utility model discloses a hydraulic stirring device and a reactor, wherein the hydraulic stirring device comprises an outer thread joint, an intermediate conduit, a material distribution joint, and a plurality of nozzle structures, wherein the outer thread joint is connected to the intermediate conduit, the material distribution joint is arranged at the lower end of the intermediate conduit, the inner bottom end of the material distribution joint is set to be conical, and a through hole is opened, and the nozzle structure comprises a nozzle pipe, a nozzle joint, and a nozzle body, wherein one end of the nozzle pipe is connected to the material distribution joint, and the other end is connected to the nozzle joint, and the nozzle body is arranged on the nozzle joint, and the nozzle body is set to be a Venturi nozzle. Compared with the prior art, the utility model can significantly improve the mixing efficiency and mixing effect of materials.

Description

Technical Field

[0001] The utility model relates to the technical field of material mixing, in particular to a hydraulic stirring device and a reaction kettle. Background Art

[0002] In the production process of chemical materials, one of the key steps is to introduce salt and alkali solutions into the reactor at the same time in a specific proportion for stirring and precipitation reaction, and finally generate a crystal slurry.

[0003] In general processes, different salt and alkali solutions are added into a reactor and then stirred and mixed by mechanical stirring, which results in a slower coprecipitation reaction rate, slower crystallization speed of the crystals, and the morphology of the crystals becoming less stable.

[0004] In view of this, a hydraulic stirring device and a reaction kettle are proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a nozzle structure, a hydraulic stirring device and a reaction kettle, which can effectively improve the material mixing efficiency and mixing effect.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A nozzle structure comprises a nozzle pipe, a nozzle joint and a nozzle body, wherein one end of the nozzle pipe is connected to a material distribution joint, and the other end is connected to the nozzle joint, and the nozzle body is arranged on the nozzle joint.

[0008] In a preferred embodiment, the nozzle connecting pipe is arranged along the radial direction of the intermediate conduit, and the nozzle body is arranged along the horizontal radial direction of the nozzle connecting pipe.

[0009] In a preferred embodiment, the nozzle body is configured as a Venturi nozzle.

[0010] A hydraulic stirring device comprises an external thread joint, an intermediate conduit, a material distribution joint, and a plurality of nozzle structures, wherein the external thread joint is connected to the intermediate conduit, the material distribution joint is arranged at the lower end of the intermediate conduit, the inner bottom end of the material distribution joint is configured to be conical and has a through hole, the nozzle structure comprises a nozzle pipe, a nozzle joint and a nozzle body, one end of the nozzle pipe is connected to the material distribution joint, and the other end is connected to the nozzle joint, and the nozzle body is arranged on the nozzle joint.

[0011] In a preferred embodiment, the plurality of nozzle structures are evenly distributed around the circumference, the nozzle connecting pipe is arranged along the radial direction of the intermediate conduit, and the nozzle body is arranged along the horizontal radial direction of the nozzle connecting pipe.

[0012] In a preferred embodiment, the number of the nozzle structures is four.

[0013] In a preferred embodiment, the number of the nozzle structures is eight and they are arranged in two groups at different heights.

[0014] In a preferred embodiment, it also includes a sleeve and a sleeve seat, wherein the sleeve seat is connected to the flange base of the hydraulic stirring device, the sleeve seat is connected to the sleeve, the sleeve is sleeved on the intermediate conduit, and a lifting control mechanism is provided on the sleeve.

[0015] In a preferred embodiment, the lifting control mechanism includes a locking screw, the sleeve is provided with a threaded through hole, the locking screw cooperates with the threaded through hole and abuts against the intermediate conduit; or the lifting control mechanism includes a telescopic motor, and the telescopic motor connects the intermediate conduit and the sleeve seat.

[0016] A reaction kettle comprises the above-mentioned nozzle structure, or comprises the above-mentioned hydraulic stirring device.

[0017] Compared with the prior art, the utility model realizes hydraulic stirring through its structural setting, and adopts hydraulic stirring method instead of traditional mechanical stirring method, so that the efficiency is higher, the stirring and mixing effect is better, mechanical wear is avoided, and the life of the equipment is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a structural schematic diagram of a reaction kettle.

[0019] Figure 2 The utility model is a schematic diagram of the longitudinal section structure of a reaction kettle.

[0020] Figure 3 The utility model is a structural schematic diagram of a kettle body of a reaction kettle.

[0021] Figure 4 The utility model is a structural schematic diagram of a top cover of a reaction kettle.

[0022] Figure 5 The utility model is a structural schematic diagram of a multi-effect mixer of a reaction kettle.

[0023] Figure 6 The utility model is a structural schematic diagram of a liquid flow hydraulic stirring device of a reaction kettle (manual lifting mode).

[0024] Figure 7 The utility model is a structural schematic diagram of a sleeve of a liquid flow hydraulic stirring device of a reactor.

[0025] Figure 8The utility model is a structural schematic diagram of a material distribution joint of a liquid flow hydraulic stirring device of a reaction kettle.

[0026] Fig. 9 The utility model is a schematic diagram of the longitudinal section structure of a material distribution joint of a liquid flow hydraulic stirring device of a reaction kettle.

[0027] Fig.10 The utility model is a structural schematic diagram of a nozzle joint of a liquid flow hydraulic stirring device of a reaction kettle.

[0028] Fig.11 The utility model is a schematic diagram of the longitudinal section structure of a nozzle joint of a liquid flow hydraulic stirring device of a reaction kettle.

[0029] Fig.12 The utility model is a structural schematic diagram of a liquid flow hydraulic stirring device of a reaction kettle (motor lifting mode).

[0030] In the picture

[0031] Kettle body 1; heat exchange medium inlet 2; heat exchange medium outlet 3; discharge pipe 4; top cover 5; quick-release joint 6; straight return pipe 7; flange pipe seat 8; temperature sensor pipe seat 9; sight glass flange pipe seat 10; condenser flange pipe seat 12; multi-effect mixer flange pipe seat 13; hydraulic stirring device flange base 14; multi-effect mixer 15; top interface 16; side interface 17; thermometer 18; clamp flange sight glass 19; condenser 20; external thread joint 21; sleeve 22; sleeve seat 23; intermediate conduit 24; material distribution joint 25; locking nut 26; nozzle pipe 27; nozzle joint 28; nozzle body 29; telescopic motor 30. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0034] Embodiment 1:

[0035] A nozzle structure comprises a nozzle pipe, a nozzle joint and a nozzle body, wherein one end of the nozzle pipe is connected to a material distribution joint, and the other end is connected to the nozzle joint, and the nozzle body is arranged on the nozzle joint.

[0036] The nozzle connecting pipe is arranged along the radial direction of the intermediate conduit, and the nozzle body is arranged along the horizontal radial direction of the nozzle connecting pipe.

[0037] The nozzle body is configured as a Venturi nozzle.

[0038] Embodiment 2:

[0039] A hydraulic stirring device comprises an external thread joint, an intermediate conduit, a material distribution joint, and a plurality of nozzle structures, wherein the external thread joint is connected to the intermediate conduit, the material distribution joint is arranged at the lower end of the intermediate conduit, the inner bottom end of the material distribution joint is configured to be conical and has a through hole, the nozzle structure comprises a nozzle pipe, a nozzle joint and a nozzle body, one end of the nozzle pipe is connected to the material distribution joint, and the other end is connected to the nozzle joint, and the nozzle body is arranged on the nozzle joint.

[0040] The multiple nozzle structures are evenly distributed around the circumference, the nozzle connecting pipe is arranged along the radial direction of the intermediate conduit, and the nozzle body is arranged along the horizontal radial direction of the nozzle connecting pipe.

[0041] The number of the nozzle structures is four.

[0042] The number of the nozzle structures is eight and they are arranged in two groups at different heights.

[0043] It also includes a sleeve and a sleeve seat, wherein the sleeve seat is connected to the flange base of the hydraulic stirring device, the sleeve seat is connected to the sleeve, the sleeve is sleeved on the intermediate conduit, and a lifting control mechanism is provided on the sleeve.

[0044] The lifting control mechanism includes a locking screw, and the sleeve is provided with a threaded through hole. The locking screw cooperates with the threaded through hole and abuts against the intermediate conduit; or the lifting control mechanism includes a telescopic motor, and the telescopic motor connects the intermediate conduit and the sleeve seat.

[0045] Embodiment three:

[0046] A reaction kettle comprises the nozzle structure in the first embodiment, or comprises the hydraulic stirring device in the second embodiment.

[0047] In order to explain this case more clearly, the following is an explanation based on the specific structure of the reactor:

[0048] A reaction kettle, comprising a hydraulic stirring device, a kettle body, a discharge pipe, a top cover, a hydraulic stirring device flange base, a multi-effect mixer and a multi-effect mixer flange pipe seat, wherein the top cover is arranged on the kettle body, the discharge pipe is connected to the bottom of the kettle body, the top cover is arranged on the kettle body, the hydraulic stirring device flange base is arranged on the top cover, the multi-effect mixer is connected to the multi-effect mixer flange pipe seat, the multi-effect mixer flange pipe seat is connected to the hydraulic stirring device flange base, the kettle body has an inner layer, a middle layer and an outer layer, a heat exchange medium is passed through the middle layer, and a heat exchange medium is connected to the middle layer. The outer layer is filled with heat insulation material, the hydraulic stirring device comprises an external thread joint, an intermediate conduit, a material distribution joint, and multiple nozzle structures, the external thread joint is connected to the intermediate conduit, the intermediate conduit is connected to the flange base of the hydraulic stirring device, the material distribution joint is arranged at the lower end of the intermediate conduit, the inner bottom end of the material distribution joint is set to be conical, and a through hole is opened, the nozzle structure comprises a nozzle pipe, a nozzle joint and a nozzle body, one end of the nozzle pipe is connected to the material distribution joint, and the other end is connected to the nozzle joint, and the nozzle body is arranged on the nozzle joint.

[0049] In this embodiment, the heat exchange medium flows from bottom to top in the interlayer between the inner and middle layers, and the heat exchange medium transfers heat to the mixed solution in the inner layer to maintain a reaction temperature of 80-100°C for the crystallization reaction in the inner layer. The bottom liquid of the reactor flows out through the discharge pipe, and the bottom outflow rate is 4m 3 / h.

[0050] A reactor in this embodiment also includes a quick-release joint, a straight-through reflux pipe, a flange connection seat, a temperature sensor connection seat, a sight glass flange connection seat and a condenser flange connection seat, and the quick-release joint, the straight-through reflux pipe, the flange connection seat, the temperature sensor connection seat, the sight glass flange connection seat and the condenser flange connection seat are arranged on the top cover.

[0051] The multiple nozzle structures are evenly distributed around the circumference, the nozzle connecting pipe is arranged along the radial direction of the intermediate conduit, and the nozzle body is arranged along the horizontal radial direction of the nozzle connecting pipe.

[0052] The number of the nozzle structures is four.

[0053] The number of the nozzle structures is eight and they are arranged in two groups at different heights.

[0054] The nozzle body is configured as a Venturi nozzle.

[0055] The hydraulic stirring device also includes a sleeve and a sleeve seat, wherein the sleeve seat is connected to the flange base of the hydraulic stirring device, the sleeve seat is connected to the sleeve, the sleeve is sleeved on the intermediate conduit, and a lifting control mechanism is provided on the sleeve.

[0056] The lifting control mechanism includes a locking screw, and the sleeve is provided with a threaded through hole. The locking screw cooperates with the threaded through hole and abuts against the intermediate conduit; or the lifting control mechanism includes a telescopic motor, and the telescopic motor connects the intermediate conduit and the sleeve seat.

[0057] In this embodiment, the quick-release connector is used to install the pH sensor, and the chuck blind plate and the quick-release clamp can be used for blocking. The straight-through reflux pipe is processed with an internal thread section with a diameter of M45, and the circulation pump is connected to the circulation pump through the quick-release external thread connector and the pipeline. A part of the bottom liquid of the reactor flows through the circulation pump, and is circulated and refluxed into the reactor for reaction. The flange pipe seat mainly plays a role before and after the reaction. Before the reaction, the prepared bottom liquid, i.e., the ammonia solution, is poured into the reactor through the flange pipe seat. After the reaction, when the reaction solution is discharged, the cleaning liquid is poured into the reactor to clean the device. The temperature sensor pipe seat is processed with an internal thread section, and the temperature sensor is installed to monitor the temperature of the solution in the reactor. The sight glass flange pipe seat is installed with a clamped flange sight glass for visual observation of the reactor. The condenser flange pipe seat is connected to the condenser through a flange. Due to the high temperature of the reactor, the water evaporates and rises, and the water vapor is condensed and recovered through the condenser. The multi-effect mixer flange pipe seat is connected to the multi-effect mixer through a flange. The flange base of the hydraulic stirring device is located in the center of the top cover to install the hydraulic stirring device. The inflow rate of the bottom liquid of the reactor of the multi-effect mixer and the hydraulic stirring device is 8-20m 3 / h.

[0058] There are three interfaces on the upper layer of the multi-effect mixer. The top interface is connected to the reflux bottom liquid of the reactor, and the two side interfaces are respectively connected to the mixed solution of multiple salt solutions and the alkaline solution. The three liquid flows are mixed axially, radially and diffusely. The mixed solution flows into the bottom of the reactor through the multi-effect mixer outlet pipe extending to the bottom of the reactor, and a co-precipitation reaction is carried out in the reactor. The diameter of the multi-effect mixer outlet pipe is 10-20mm.

[0059] The hydraulic stirring device is fixed on the flange base of the hydraulic stirring device on the top cover of the reactor. The height, spacing and angle of the hydraulic stirring nozzles are adjustable to meet the stirring requirements of liquid levels at different heights. The inlet diameter of the hydraulic stirring device is 20-50mm. There are 4 sets of nozzles. The number of nozzles can be increased according to the stirring requirements, with a maximum of 8. When the liquid level of the reactor is high, multiple layers of stirring nozzles can be set, and the stirring nozzles can be set crosswise.

[0060] According to the different liquid level heights in the reactor, the nozzles can be arranged in 2-3 layers, and the nozzles in each layer are arranged crosswise.

[0061] The hydraulic stirring device comprises an external thread joint, a sleeve and a sleeve seat, an intermediate guide tube, a material distribution joint, a locking nut, a nozzle pipe, a nozzle joint and a nozzle body.

[0062] There is a threaded section inside the middle connecting pipe, one end of the external thread joint is connected to the middle conduit through its own external thread section, and the other end of the external thread joint is connected to the external connecting pipe, and the interface flow rate is 3-10m / s.

[0063] The sleeve and the sleeve seat are an integral whole. The sleeve is provided with two layers of threaded through holes, each layer having three threaded through holes. The intermediate conduit passes through the sleeve, and the intermediate conduit and the sleeve are relatively fixed by means of locking screws. The sleeve seat is a flange, and the sleeve seat is installed on the top cover of the reactor.

[0064] The lower end of the intermediate conduit is welded to the material distribution joint. The inner diameter of the material distribution joint is the same as the inner diameter of the intermediate conduit. The bottom end of the internal part of the material distribution joint is conical and has a through hole with a diameter of 3-5mm at the end. The function of the through hole is to generate turbulence and prevent sedimentation. There are four threaded through holes distributed around the flow distribution joint.

[0065] The nozzle pipe has an inner diameter of 10-20mm, and one end is an external threaded section, which matches the threaded through hole of the diverter joint. A locking nut is provided on the external threaded section to ensure the close fit between the nozzle pipe and the diverter joint. The other end of the nozzle pipe is connected to the nozzle joint by welding.

[0066] The inner diameter of the nozzle joint is 10-20mm, and a threaded through hole is opened on the side wall of the inner hole. The nozzle body is screwed into the nozzle joint to form a whole. The nozzle body can increase the injection speed, so that the jet is ejected at a faster speed, forming a more violent swirl and eddy current, and enhancing the mixing effect of the liquid. The outflow speed can reach 10-30m / s.

[0067] The inlet and outlet of the refrigeration device are connected to condensed water to condense and recover the water vapor evaporated by heating.

[0068] The following is a description with reference to the specific drawings:

[0069] like Figure 1 As shown, the reactor body 1 is combined with the top cover 5 via a flange.

[0070] like Figure 2 and Figure 3 As shown, the kettle body 1 is composed of three layers: inner, middle and outer. At the bottom center of the kettle body 1, the discharge pipe 4 passes through the outer layer and the middle layer to connect the inner layer, and the bottom liquid in the reactor flows out through the discharge pipe 4. The outer layer and the middle layer are filled with insulation material, and the outer layer and the middle layer are arranged with a heat exchange medium inlet 2 and a heat exchange medium outlet 3. The heat exchange medium flows in the interlayer between the inner layer and the middle layer, transfers heat to the solution in the reactor, and provides a suitable temperature for the co-precipitation reaction in the inner layer.

[0071] like Figure 1 and Figure 4 As shown, two quick-release connectors 6 are welded on the top cover 5. If the pH sensor is not installed, the quick-release connector 6 can be blocked by a chuck blind plate and a quick-release clamp. The function of the straight-through reflux pipe 7 is to return the bottom liquid of the reactor after circulation through the circulation pump to the reactor. The straight-through reflux pipe 7 is processed with an internal thread section, and the circulation pump is connected to the pipeline through a quick-release external thread connector 21. The flange pipe seat 8 is closed with the top cover 5 during the whole reaction process. Before the reaction, the prepared bottom liquid is poured into the reactor through the opening in the middle of the flange pipe seat 8. After the reaction, the cleaning liquid is poured into the opening to clean the entire device. The temperature sensor pipe seat 9 and the thermometer 18 are threaded to realize the monitoring of the solution temperature in the kettle. The sight glass flange pipe seat 10 is combined with the clamped flange sight glass 19 by bolts, and the clamped flange sight glass 19 can be used for visual observation of the reactor. The condenser flange socket 128 is connected to the condenser through bolts and flanges. The coolant inlet and outlet of the condenser are connected to the factory water pipeline to condense and recover the water vapor evaporated by heating.

[0072] The multi-effect mixer flange connection socket 13 is connected to the multi-effect mixer 15 through a flange, and a top interface 16 of the top layer of the multi-effect mixer 15 and two side interfaces on the side are respectively fed with the refluxed reactor bottom liquid, a mixed solution of multiple salt solutions and an alkaline solution. After the three streams are pre-mixed in the multi-effect mixer 15, they flow into the reactor through the outlet pipe of the multi-effect mixer 15.

[0073] The flange base 14 of the hydraulic stirring device is located at the center of the top cover 5 to install the hydraulic stirring device. The height, spacing and angle of the hydraulic stirring nozzle are adjustable to adapt to different heights of liquid levels.

[0074] The hydraulic stirring device comprises an outer thread joint 21, a sleeve 22, a sleeve seat 23, an intermediate conduit 24, a material distribution joint 25, a locking nut 26, a nozzle pipe 27, a nozzle joint 28, and a nozzle body 29. The device is designed to achieve an efficient liquid mixing process.

[0075] The external thread connector 21 is connected to the intermediate conduit 24 through its external thread section, and its other end is connected to the external pipe to ensure that the interface flow rate is within the range of 3-10m / s. The sleeve 22 is integrated with the sleeve seat 23, and the sleeve 22 is provided with two layers of M5 threaded through holes, and the intermediate conduit 24 is relatively fixed to the sleeve 22 by locking screws. The sleeve seat 23 is installed on the reactor top cover 5, and the height of the intermediate conduit 24 can be manually adjusted within a certain range by locking screws.

[0076] The lower end of the intermediate conduit 24 is connected to the material distribution joint 25 by welding, and the inner diameters of both are 20-50 mm. The inner bottom of the material distribution joint 25 adopts a conical design and is provided with a through hole with a diameter of 3-5 mm, in order to produce a torrent effect. There are four threaded through holes around the flow distribution joint, which are arranged perpendicular to the inlet direction.

[0077] The inner diameter of the nozzle pipe 27 is 10-20mm, one end of which is designed as an external threaded section, which cooperates with the threaded through hole of the diverter joint and is locked by the locking nut 26. The other end is connected to the nozzle joint 28 by welding. By adjusting the cooperation between the nozzle pipe 27 and the diverter joint, the liquid flow injection spacing and injection angle can be changed. The inner diameter of the nozzle joint 28 is 10-20mm, and a threaded through hole is provided on the side wall of the inner hole to facilitate the screwing of the nozzle body 29 to form a whole. The design of the nozzle body 29 is to increase the injection speed, and the outflow speed can reach 30-50m / s, forming a more violent swirl and vortex, thereby enhancing the liquid mixing effect.

[0078] During the operation of the device, the external device introduces the solution into the external thread connector 21 at a certain speed and pressure, and the liquid flows through the intermediate conduit 24 to the material distribution connector 25 at the bottom. The material distribution connector 25 has four radial openings, and the liquid flow is divided into four streams and enters the nozzle pipe 27 respectively. The nozzle pipe 27 is axially connected to the nozzle connector 28, and the internal flow channel of the nozzle connector 28 is radially connected to the nozzle body 29. The liquid flow is ejected from the radial outlet through the nozzle body 29 to generate a high-speed jet.

[0079] The entire device can generate 4 high-speed jets in the reactor. The high-speed jets and the liquid at the bottom of the reactor generate a large number of eddies due to the speed difference, thereby intensifying the mixing and causing the solution in the reactor to swirl.

[0080] Alternatively, the height adjustment method of the hydraulic stirring device can be improved by changing the method of manually adjusting the fastening screws to an automatic adjustment method by the telescopic motor 30.

[0081] The external control device controls the telescopic motor 30 according to the liquid level and automatically adjusts the height of the hydraulic nozzle to achieve the best hydraulic stirring effect.

[0082] During the operation of the reactor, a certain amount of ammonia solution is first poured into the reactor through the flange pipe seat 8. Part of the bottom liquid flows out from the bottom discharge pipe 4 of the reactor body 1 to the reflux pipe outside the reactor. The bottom liquid of the reactor flows into the multi-effect mixer 15 and the hydraulic stirring device through the reflux pipe.

[0083] The inlet of the multi-effect mixer 15 is connected to the reactor bottom liquid reflux pipe and the saline-alkali stock solution inlet pipe. After the reactor bottom liquid and the saline-alkali stock solution are mixed axially, radially and diffusely in the multi-effect mixer 15, they flow into the bottom of the reactor from the bottom reflux pipe of the multi-effect mixer 15. At the same time, the reactor bottom liquid flows back to the hydraulic stirring device, forming 4 high-speed jets with a certain speed that flow into the reactor bottom liquid. The high-speed jets and the reactor bottom liquid generate a large number of vortices due to the speed difference, thereby intensifying the mixing and causing the solution in the reactor to generate a swirl.

[0084] When the liquid level in the reactor exceeds a certain value, the introduction of the saline-alkali stock solution into the multi-effect mixer 15 is stopped, and the bottom liquid of the reactor continues to circulate and flow back through the multi-effect mixer 15 and the hydraulic stirring device until the reaction is completed.

[0085] During the reaction, the thermometer 18 monitors the temperature in the reactor, and the temperature of the heat exchange medium introduced into the heat exchange medium inlet 2 is manually adjusted. The condenser 20 condenses and recovers the water vapor evaporated by heat to avoid wasting water resources.

[0086] When the solution in the reactor has finished reacting, the solution is discharged through the bottom discharge pipe 4, and then the cleaning liquid is poured into the flange pipe seat 8 to clean the entire device.

[0087] The above description of the embodiments is to facilitate the understanding and use of the present invention by ordinary technicians in the technical field. It is obvious that those familiar with the technical field can easily make various modifications to the embodiments and apply the general principles described here to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A hydraulic stirring device, characterized in that: It includes an external thread joint, an intermediate conduit, a material distribution joint, and multiple nozzle structures. The external thread joint is connected to the intermediate conduit. The material distribution joint is arranged at the lower end of the intermediate conduit. The inner bottom end of the material distribution joint is set to be conical and has a through hole. The nozzle structure includes a nozzle pipe, a nozzle joint and a nozzle body. One end of the nozzle pipe is connected to the material distribution joint, and the other end is connected to the nozzle joint. The nozzle body is arranged on the nozzle joint, and the nozzle body is set to be a Venturi nozzle.

2. A hydraulic stirring device according to claim 1, characterized in that: The multiple nozzle structures are evenly distributed around the circumference, the nozzle connecting pipe is arranged along the radial direction of the intermediate conduit, and the nozzle body is arranged along the horizontal radial direction of the nozzle connecting pipe.

3. A hydraulic stirring device according to claim 1, characterized in that: The number of the nozzle structures is four.

4. A hydraulic stirring device according to claim 1, characterized in that: The number of the nozzle structures is eight and they are arranged in two groups at different heights.

5. A hydraulic stirring device according to claim 1, characterized in that: It also includes a sleeve and a sleeve seat, wherein the sleeve seat is connected to the flange base of the hydraulic stirring device, the sleeve seat is connected to the sleeve, the sleeve is sleeved on the intermediate conduit, and a lifting control mechanism is provided on the sleeve.

6. A hydraulic stirring device according to claim 5, characterized in that: The lifting control mechanism includes a locking screw, and the sleeve is provided with a threaded through hole. The locking screw cooperates with the threaded through hole and abuts against the intermediate conduit; or the lifting control mechanism includes a telescopic motor, and the telescopic motor connects the intermediate conduit and the sleeve seat.

7. A reaction kettle, characterized in that: A hydraulic stirring device comprising any one of claims 1-6.

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