CN215877362U - Viscous paste preparation device - Google Patents

Abstract

The utility model discloses a viscous slurry preparation device, which comprises a stirring container, wherein the stirring container is formed by an upper cylindrical body and a lower conical bottom which are connected into a whole by a cavity, the side wall of the cylindrical body is a cylindrical wall with a hollow inner cavity, and a coolant from an external cooling circulation system is injected into the hollow inner cavity; the conical bottom is provided with a discharge hole, and a screen is arranged at the discharge hole; a plug-in valve plate is arranged at the position where the cylindrical body is adjacent to the conical bottom; the barrel-shaped body is internally provided with a stirring paddle and a scraper, and the scraper is attached to the barrel wall of the barrel-shaped body.

Description

Viscous paste preparation device

Technical Field

The utility model relates to the technical field of mechanical equipment, in particular to a device for preparing viscous slurry for a laboratory.

Background

The slurry preparation technology is developed vigorously in the industries of coating, chemical industry, metal smelting and lithium battery, wherein the key factor influencing the physical and chemical properties of the slurry is equipment, and the slurry preparation device in the chemical industry or the lithium battery conductive slurry preparation equipment which is increasingly innovated at present has the following problems: poor sealing, stirring paddle wall scraping, uncontrollable solvent volatilization, incapability of realizing milligram-grade slurry preparation and the like, and equipment suitable for laboratory pilot study and milligram-grade raw material slurry preparation is not found on a public technical platform or data.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a viscous slurry preparation device which is suitable for different raw materials and different fields, is simple to operate, low in manufacturing cost and good in dispersion effect, and can prepare slurry with stable properties.

The technical problem to be solved can be implemented by the following technical scheme.

The viscous slurry preparation device is characterized by comprising a stirring container, wherein the stirring container is formed by an upper cylindrical body and a lower conical bottom which are connected into a whole by a cavity, the side wall of the cylindrical body is a cylindrical wall with a hollow inner cavity, and a coolant from an external cooling circulation system is injected into the hollow inner cavity; the conical bottom is provided with a discharge hole, and a screen is arranged at the discharge hole; a plug-in valve plate is arranged at the position where the cylindrical body is adjacent to the conical bottom; the barrel-shaped body is internally provided with a stirring paddle and a scraper, and the scraper is attached to the barrel wall of the barrel-shaped body.

As a further improvement of the technical scheme, the stirring container is placed on a support body, and damping springs are arranged on support legs of the support body.

As one embodiment of the utility model, the stirring paddle is arranged in a cylindrical barrel with through holes distributed on the barrel wall; the stirring shaft of the stirring paddle is connected with a first driving motor, and the cylindrical barrel is connected with a second driving motor.

Further, the first driving motor and the second driving motor are opposite in rotation direction.

As a further improvement of the technical scheme, the paddle of the stirring paddle is a double-helical-ribbon paddle.

As a further improvement of the technical scheme, a stirring shaft of the stirring paddle is connected with a forward or reverse rotation motor.

Also as a further improvement of the technical scheme, the external cooling circulation system is connected with the hollow inner cavity through a feed inlet with a multi-stage reducing head; to facilitate control of the flow of coolant into the hollow interior. Through the throttle cooling principle, effectively ensure that coolant steam is got off by rapid condensation, collects in the collection fluid reservoir.

Furthermore, an air cooling pipe and a liquid collecting tank are arranged on a cooling pipeline of the external cooling circulation system.

When the viscous slurry preparation device adopting the technical scheme is used for preparing slurry, the effective dispersion of the slurry can be ensured, the cooling system can always ensure that the slurry of different systems is dispersed at a proper temperature, and the condition that the slurry state is changed and the next process is influenced due to the heat generated by collision among particles during stirring is avoided; the stirring paddle is formed by combining a double helical ribbon and a porous cylinder, can provide high-speed shearing force and is used for dispersing a high-viscosity system.

Drawings

FIG. 1 is a schematic structural view of a slurry preparation apparatus according to the present invention;

FIG. 2 is a detailed schematic view of FIG. 1;

FIG. 3 is a schematic view of the construction of the doctor blade;

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The viscous paste preparation apparatus shown in fig. 1 to 3 mainly consists of 4 major parts: the device comprises a charging system 1, a stirring system 2, a cooling system 3 and a control system 4.

The charging system 1 is composed of a jacket conical barrel 1-1 (the upper part is a cylindrical section and the lower part is a conical section), a gate valve 1-2, a bracket 1-3, a gas injection port 1-4, a screen 1-5 and a discharge valve 1-6. A coolant is injected into the jacket 3-5 of the jacket conical barrel 1-1, so that the whole material system is maintained at an optimal viscosity region temperature in the stirring and dispersing process, the problem that the viscosity of the system is increased and the dispersion is not facilitated due to solvent volatilization caused by heat generated by collision among material particles in the stirring process is solved, or a stirring paddle or a scraper and the like are directly stuck, so that a motor is overloaded and generates heat, and potential safety hazards exist; the springs are arranged at the bottoms of the supports 1-3, so that vibration in the stirring process is prevented, and dangers such as barrel body toppling caused by equipment displacement are avoided. The screen mesh 1-5 can be selected with proper mesh number according to the particle size of the material, and is matched with the gas injection port 1-4 and the gate valve 1-2 for use, so that large particles or impurities in the prepared slurry can be conveniently removed, and the stable and uniform state of the slurry is ensured without sedimentation.

The stirring system 2 consists of a motor 2-4, a gear 2-3, a stirring paddle 2-1 and a scraper 2-2. The stirring is carried out by double helical ribbon stirring paddles and a cylinder 2-6 with a plurality of round holes, and the combined design ensures that the whole system is under the action of shearing force and turbulent flow, so that the slurry can be fully mixed and dispersed. The outer layer of the scraper 2-2 is made of carbon fiber materials with excellent toughness, strength and wear resistance, so that abrasion is prevented, impurities enter slurry to influence the quality of subsequent products, the scraper and a charging barrel adhere to the wall, and the situation that a material accumulation layer is formed around and at the bottom of the barrel body to influence the proportioning of the slurry is avoided, so that the solid content of the slurry is too low to enter a coating process. Wherein, the scraper and the double helical ribbon stirring paddle are coaxial (2-7 in the figure is the rotating shaft thereof), are driven by the motor 2-5 through the rotating shaft 2-7, and the round cylinder is driven by the motor 2-4.

And the rotation directions of the two motors are preferably opposite, so that the whole system is always in a turbulent state and is easier to disperse.

The cooling system 3 comprises a multi-stage reducing head 3-5, an air cooling pipe 3-6, a liquid collecting tank 3-1, a water feeding pipeline 3-2, an electric valve 3-3 and the like. By adopting a throttling and cooling principle and designing a multi-stage reducing head through theoretical calculation, the coolant steam is effectively ensured to be rapidly condensed and collected in the liquid collecting tank, when the temperature of the jacket 3-5 is higher than a set value (3-4 in the figure is a jacket temperature measuring point), the electric valve 3-3 which obtains a signal along a signal line 4-2 is opened, the normal-temperature coolant in the liquid collecting tank 3-1 is supplemented into the jacket 3-5, the temperature of the jacket is automatically balanced, the temperature and the quality of the coolant in the jacket are always ensured to be kept stable, and finally the whole slurry system is ensured to be stirred and dispersed at an optimal viscosity temperature point.

The specific operation process is as follows:

a preparation stage:

the jacket 3-5 is filled with coolant, the gate valve 1-2 is closed, the gas injection port 1-4 and the discharge valve (i.e. the discharge valve 1-6) are closed, and a screen mesh with a proper mesh number is selected according to requirements.

And (3) a normal use stage: and (3) turning on a power supply, setting the dispersion temperature required by the slurry on a control panel 4-1, feeding, turning on a motor, starting slurry preparation until the viscosity of the slurry is sampled and analyzed and the fineness of a scraper is qualified, stopping stirring and dispersing, turning on a gate valve 1-2, after the slurry completely flows into the conical section at the lower part of a jacket conical barrel 1-1, turning off the gate valve, sequentially turning on a discharge valve and an air injection port, and filtering large particles in the slurry to obtain the qualified slurry.

Claims (8)

1. The viscous slurry preparation device is characterized by comprising a stirring container, wherein the stirring container is composed of an upper cylindrical body and a lower conical bottom which are connected into a whole by a cavity, the side wall of the cylindrical body is a cylindrical wall with a hollow inner cavity, and a coolant from an external cooling circulation system is injected into the hollow inner cavity; the conical bottom is provided with a discharge hole, and a screen is arranged at the discharge hole; a plug-in valve plate is arranged at the position where the cylindrical body is adjacent to the conical bottom; the barrel-shaped body is internally provided with a stirring paddle and a scraper, and the scraper is attached to the barrel wall of the barrel-shaped body.

2. The viscous paste preparation apparatus according to claim 1, wherein the stirring vessel is placed on a stand body, and a damper spring is provided on a stand bar of the stand body.

3. The viscous paste preparation apparatus according to claim 1, wherein the stirring paddle is disposed in a cylindrical barrel having a wall with through holes, and the stirring shaft of the stirring paddle is connected to the first driving motor, and the cylindrical barrel is connected to the second driving motor.

4. The viscous slurry preparation apparatus according to claim 1 or 3, wherein the paddle of the stirring paddle is a twin-ribbon paddle.

5. The viscous paste preparation apparatus according to claim 1, wherein a forward or reverse rotation motor is connected to the stirring shaft of the stirring paddle.

6. The viscous slurry preparation apparatus of claim 3, wherein the first drive motor and the second drive motor are counter-rotating.

7. The viscous slurry preparation apparatus according to claim 1, wherein the external cooling circulation system is connected to the hollow inner chamber through a feed port having a multi-stage variable diameter head.

8. The viscous paste manufacturing apparatus according to claim 1, wherein an air-cooling pipe and a liquid-collecting tank are provided on the cooling pipe of the external cooling circulation system.

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