CN219051173U - A powder-liquid feeding and mixing system - Google Patents

Abstract

The utility model discloses a powder-liquid feeding and mixing system, which comprises a powder feeding device, a liquid feeding device, a mixing homogenizer, a stable agitator and a slurry container. The powder feeding device, liquid feeding device, mixing homogenizer and stable agitator are fixed on the top surface of the slurry container, and the powder feeding device is used to add the powder in the process into the system. The liquid feeding device is used for metering and applying of liquid, the mixing homogenizer is used for mixing and homogenizing powder and liquid, and the stable agitator is used for final product Stirring of the slurry to prevent powder agglomeration and precipitation, and the slurry container is used to hold the finished slurry temporarily. The mixing uniformity is high, it has two stirring links, and has the double function of stirring and homogenizing, which improves the mixing and homogenizing effect and production efficiency; it has the characteristics of simple structure, high reliability, low maintenance cost and high economic benefit.

Description

A powder-liquid feeding and mixing system

technical field

The utility model relates to the field of mixing and homogenizing powder and liquid, in particular to a powder-liquid feeding and mixing system.

Background technique

The powder-liquid mixing process is widely used in many fields such as light industry and chemical industry, and the mixing homogenization process has high requirements for mixing uniformity, so as not to affect the production process and final product quality.

However, there are many defects in the powder-liquid mixing technology and fluid mixing equipment in the prior art. First, the feeding method of powder and liquid is unreasonable. The existing feeding method of powder and liquid is to directly put the powder and liquid into stirring The container is easy to cause powder agglomeration, and it is difficult to stir evenly, which affects the mixing quality of the slurry from the source; secondly, the mixing uniformity is not up to standard and the equipment is too complicated. If the mixing uniformity is not up to standard, the quality of the product will be affected, and the equipment is too complicated Will cause the initial cost and maintenance cost to be too high. The equipment with good stirring effect has poor homogeneity, and the production efficiency with good homogeneity effect is low. For example, the powder-liquid mixing process of talc powder and water has high requirements for mixing homogenization effect and production efficiency. Whether the stirring paddle is turbine type, propulsion type, frame type or twist paddle, although the stirring efficiency is high, But its average effect is poor; if special homogenization equipment is used, although the homogenization effect is improved, the production efficiency is reduced; if the combination of traditional agitator and homogenization device is used, the equipment will be too large and the energy consumption of the equipment will be reduced. increase, the reliability will deteriorate, and the cost will be much higher. Therefore, the performance of the stirring and mixing equipment in the prior art cannot well meet the requirements of the production process, and its stirring homogenization effect and production efficiency need to be improved.

Contents of the invention

In order to solve the above problems, the utility model provides a powder-liquid feeding and mixing system, which can well solve many defects of the prior art such as unsatisfactory stirring homogenization effect, unsatisfactory production efficiency, complex structure, and high operation and maintenance costs.

In order to achieve the above object, the technical solution adopted in the utility model is:

A powder-liquid feeding and mixing system, comprising a powder feeding device, a liquid feeding device, a mixing homogenizer, a stable agitator and a slurry container; the powder feeding device, liquid feeding device, mixing homogenizer and stable agitator Fixed on the top surface of the slurry container, the powder feeding device is used to add the powder in the process into the system, measure and apply the powder to mix with the liquid, and the liquid feeding device is used for Metering and application of liquid, the mixing homogenizer is used for mixing and homogenizing powder and liquid, the stable agitator is used for stirring the finished slurry to prevent powder agglomeration and precipitation, and the slurry container is used for Temporarily hold the finished slurry;

The powder feeding device includes a screw feeder, a feeder reducer and a feeder motor, and the screw feeder and the feeder motor are connected through the feeder reducer; the screw feeder is provided with a powder inlet at one end , the other end is provided with a powder outlet, the powder inlet is facing upwards, and the powder outlet is facing downwards; one side of the powder outlet is vertically provided with a side plate, and a baffle is provided at an angle close to the side plate plate;

The liquid feeding device includes a liquid inlet pipe, a flow meter and a valve, the liquid inlet pipe is provided with a liquid outlet at one end close to the screw feeder, the liquid outlet is fixed on the side plate, and the outlet The liquid port faces the baffle plate; the flow meter and the valve are arranged between the liquid inlet pipes and connected with the liquid inlet pipes.

The mixing homogenizer includes a centrifugal paddle, a shear cylinder, a homogenizing shaft and a mixing motor, the centrifugal paddle is sleeved on the homogenizing shaft, and the centrifugal paddle is connected to the homogenizing shaft through the homogenizing shaft. The mixing motor is connected, the centrifugal paddle is placed in the shearing cylinder, and the lower part of the shearing cylinder is provided with several rectangular holes passing through the inside and outside along the circumference of the cylinder wall for the medium to flow through;

The stable stirrer includes a stirring paddle, a stirring shaft and a stirring motor, the stirring paddle is connected to the stirring motor through the stirring shaft, and the stirring paddle is sleeved on the stirring shaft;

The slurry container is horizontally provided with a top surface at its top, the middle part of the slurry container is provided with a horizontal plate, and the inside of the slurry container is provided with a vertical plate connected vertically with the top surface and the horizontal plate; on the top surface A slant plate is arranged obliquely between the horizontal plate and a powder dropping port on the top surface, and the powder dropping port is directly opposite to the powder outlet.

As a further improvement of the utility model, both the mixing motor and the stirring motor are equipped with a reducer.

As a further improvement of the utility model, the lower edge of the slanting plate is connected to the mouth edge of the shearing cylinder, and the width of the upper edge of the sloping plate is slightly larger than the same direction width of the powder dropping opening.

As a further improvement of the utility model, the shear cylinder is suspended from the lower surface of the horizontal plate.

As a further improvement of the utility model, the horizontal plate is located above the highest liquid level in the slurry container.

As a further improvement of the utility model, the position of the centrifugal paddle is higher than that of the stirring paddle.

As a further improvement of the utility model, the axis of the screw feeder is arranged obliquely, and one end driven by the motor of the feeder is higher than the other end.

Compared with the prior art, the beneficial effects of the utility model are:

1. High degree of mixing uniformity: the two mixing links have dual functions of mixing and homogenizing, which improves the mixing and homogenizing effect and production efficiency.

2. Simple structure and high reliability: low maintenance cost and high economic benefit.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation of the utility model. In the accompanying drawings:

Fig. 1 is a front sectional view of the utility model.

Fig. 2 is a left sectional view of the utility model.

In the figure: 1. Powder feeding device, 2. Liquid feeding device, 3. Mixing homogenizer, 4. Stable agitator, 5. Slurry container, 11. Screw feeder, 12. Feeder reducer, 13. Feeding Device motor, 21, flow meter, 22, valve, 23, liquid outlet, 24, liquid inlet pipe, 31, centrifugal paddle, 32, shear cylinder, 33, homogeneous shaft, 34, mixing motor, 41, stirring Paddle, 42, stirring shaft, 43, stirring motor, 51, inclined plate, 52, powder falling port, 53, vertical plate, 54, horizontal plate, 55, top surface, 111, powder inlet, 112, powder outlet, 113, baffle plate, 114, side plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "both ends", The orientation or positional relationship indicated by "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device or element Must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "connected", etc. should be understood in a broad sense, such as "connected", which can be a fixed The connection can also be a detachable connection or an integrated connection; it can be a mechanical connection or an electrical connection; the mechanical connection can be welding, riveting, threaded connection or flange connection, etc.; it can be directly connected or through an intermediate connection. An indirect connection through a medium may be an internal connection between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

As shown in Figures 1 to 2, the utility model provides a powder-liquid feeding and mixing system, including a powder feeding device 1, a liquid feeding device 2, a mixing homogenizer 3, a stable agitator 4 and a slurry container 5. The powder feeding device 1, the liquid feeding device 2, the mixing homogenizer 3 and the stable agitator 4 are fixed on the top surface 55 of the slurry container 5, and the powder feeding device 1 is used to add the powder in the process into the system. The powder is metered and applied for mixing with the liquid, the liquid feeding device 2 is used for the metering and application of the liquid, the mixing homogenizer 3 is used for mixing and homogenizing the powder and liquid, and the stable agitator 4 is used for the final product Stirring of the slurry to prevent powder agglomeration and precipitation, the slurry container 5 is used to temporarily hold the finished slurry. The utility model is provided with two stirring links, the first is a mixing homogenizer 3, which plays the role of mixing, stirring and shearing homogenization, and has a higher rotating speed; the second is a stable agitator 4, which plays a role of stable stirring The effect of rotating speed is lower, and the scope of action is the slurry in the whole slurry container 5.

The powder feeding device 1 includes a screw feeder 11 , a feeder reducer 12 and a feeder motor 13 , and the screw feeder 11 and the feeder motor 13 are connected through the feeder reducer 12 . The rotor of the screw feeder 11 is composed of a rotating shaft and a screw. There is a small gap between the outer edge of the screw and the shell of the screw feeder 11. When the rotor rotates, the powder advances under the push of the helical surface, and the flow rate of the powder to be transported is the same as that of the screw feeder 11. The diameter of the rotor is related to the rotational speed, and the powder flow rate is proportional to the cross-sectional area of the rotor and the rotational speed; when the diameter of the rotor is constant, the powder flow rate is proportional to the rotational speed. Therefore, the powder flow rate can be determined by knowing the rotational speed. The screw feeder 11 is provided with a powder inlet 111 at one end, and a powder outlet 112 at the other end, the powder inlet 111 faces upward, and the powder outlet 112 faces downward. The powder inlet 111 is connected with the raw material barrel, and the powder enters the screw feeder 11 from the raw material barrel through the powder inlet 111 . The axis of the screw feeder 11 is arranged obliquely, and one end driven by the feeder motor 13 is higher than the other end, so as to prevent the powder from falling freely under the action of gravity and make the metering inaccurate.

The slurry container 5 is horizontally provided with a top surface 55 at its top, the middle part of the slurry container 5 is provided with a horizontal plate 54 , and the inside of the slurry container 5 is provided with a vertical plate 53 connected vertically with the top surface 55 and the horizontal plate 54 . A slant plate 51 is provided obliquely between the top surface 55 and the horizontal plate 54 . The top surface 55 is provided with a powder dropping port 52 , and the powder dropping port 52 is opposite to the powder outlet 112 . The lower edge of the sloping plate 51 is connected with the mouth edge of the shearing cylinder 32 , and the width of the upper edge of the sloping plate 51 is slightly larger than the same direction width of the powder drop opening 52 .

One side of the powder outlet 112 is vertically provided with a side plate 114, and a baffle 113 is arranged obliquely next to the side plate 114. The baffle 113 divides the space at the powder outlet 112 into two parts, and the baffle 113 and the side The part between the plates 114 is a liquid channel, and the other part is a powder channel.

The liquid feeding device 2 includes a liquid inlet pipe 24, a flow meter 21 and a valve 22. The liquid inlet pipe 21 is provided with a liquid outlet 23 near the end of the screw feeder 11. The liquid outlet 23 is fixed on the side plate 114, and the liquid outlet 23 Facing the baffle 113 . The flow meter 21 is used to measure the flow of the liquid, and the valve 22 is used to adjust the flow of the liquid.

The mixing homogenizer 3 includes a centrifugal paddle 31, a shearing cylinder 32, a homogenizing shaft 33 and a mixing motor 34, the centrifugal paddle 31 is sleeved on the homogenizing shaft 33, and the centrifugal paddle 31 is connected to the mixing motor 34 Connected, the centrifugal paddle 31 is placed in the shear cylinder 32, and the two cooperate with each other to realize the function of stirring and homogenization. The lower part of the shearing cylinder 32 is provided with several rectangular holes passing through the inside and outside along the circumference of the cylinder wall for the oar liquid to flow through. The shear cylinder 32 is suspended on the lower surface of the horizontal plate 54, and the horizontal plate 54 is located above the highest liquid level in the slurry container 5, so that the slurry container 5 will not affect the mixing of the powder and the liquid in the mixing homogenizer 3 , stirring and homogenizing.

The centrifugal paddle 31 is a backswept type, and the number of blades of the centrifugal paddle 31 is more than two. Centrifugal paddle 31 looks backward slightly from top to bottom, so that centrifugal paddle 31 produces an upward thrust when rotating, it rises from the place where the radius of centrifugal paddle 31 is large, and finally descends from a place with a small radius, forming a Three-dimensional vortex, thus enhancing the stirring and mixing effect. The shearing effect between the shearing cylinder 32 and the centrifugal paddle 31 depends on the gap between the inner hole of the shearing cylinder 32 and the outer circle of the centrifugal paddle 31, the smaller the gap, the better the shearing effect.

The stable stirrer 4 includes a stirring paddle 41 , a stirring shaft 42 and a stirring motor 43 , the stirring paddle 41 is connected to the stirring motor 43 through the stirring shaft 42 , and the stirring paddle 41 is sheathed on the stirring shaft 42 . The rotating speed of the stirring paddle 41 is relatively low, and the scope of action is the slurry in the entire slurry container 5 . The position of the centrifugal paddle 31 is higher than that of the stirring paddle 41 to ensure that the two-stage stirring is carried out according to the technological process.

Both the mixing motor 34 and the stirring motor 43 have their own decelerators, which can reduce the rotating speed, thereby increasing the torque of the rotor.

The working principle of this embodiment: the powder stored in the external raw material cylinder falls into the powder feeding device 1 through the powder inlet 111, and the powder falls vertically from the powder outlet 112 onto the inclined plate 51 under the upward spiral push , and the powder is uniformly distributed on the inclined plate 51 at the same time. The powder flow rate conveyed is related to the diameter and rotational speed of the rotor. The powder flow rate is proportional to the cross-sectional area of the helical rotor and the rotational speed. When the diameter of the rotor is constant, the powder flow rate is proportional to the rotational speed. Therefore, knowing the rotational speed can Determine powder flow. The liquid flows into the powder-liquid feeding and mixing system from the liquid inlet pipe 24, and the flowmeter 21 installed in the liquid inlet pipe 24 measures the liquid, and the valve 22 can adjust the flow rate. After the liquid flows out from the liquid outlet 23 , after being deflected by the baffle plate 113 , it falls vertically on the sloping plate 51 , and at the same time, the liquid is evenly distributed on the sloping plate 51 and flows down evenly along the sloping plate 51 . At this time, the liquid flowing downward just washes away the powder distributed on the inclined plate 51, and initially mixes with the powder. The liquid-powder mixture flows down along the slope 51 until it falls into the shearing cylinder 32. Under the agitation, dispersion and homogenization of the centrifugal blades 31, the powder-liquid mixture becomes a homogeneous slurry, and finally the slurry is sheared The rectangular hole in the lower part of the cylinder 32 flows out into the slurry container 5 . In the slurry container 5, the rotating speed of the stirring paddle of the stabilizing agitator 4 is low, and the scope of action is the slurry in the entire slurry container 5. The purpose is to stabilize the slurry and keep the slurry uniform, so as to prevent the powder from dehydration, agglomeration and precipitation.

Compared with the prior art, the utility model has the following advantages:

The mixing uniformity is high, and the two stirring links have dual functions of stirring and homogenizing, which improves the mixing and homogenizing effect and production efficiency; the structure is simple, the reliability is high, the maintenance cost is low, and the economic benefit is high.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (7)

1. A powder-liquid feeding and mixing system, characterized in that: it comprises a powder feeding device, a liquid feeding device, a mixing homogenizer, a stable agitator and a slurry container; the powder feeding device, the liquid feeding device, the mixing homogenizer The mixer and the stable agitator are fixed on the top surface of the slurry container, and the powder feeding device is used to add the powder in the process into the system, measure and apply the powder so as to mix with the liquid, so The liquid feeding device is used for liquid metering and application, the mixing homogenizer is used for mixing and homogenizing powder and liquid, and the stable agitator is used for stirring the finished slurry to prevent powder agglomeration and precipitation, The slurry container is used to temporarily hold the finished slurry; The powder feeding device includes a screw feeder, a feeder reducer and a feeder motor, and the screw feeder and the feeder motor are connected through the feeder reducer; the screw feeder is provided with a powder inlet at one end , the other end is provided with a powder outlet, the powder inlet is facing upwards, and the powder outlet is facing downwards; one side of the powder outlet is vertically provided with a side plate, and a baffle is provided at an angle close to the side plate plate; The liquid feeding device includes a liquid inlet pipe, a flow meter and a valve, the liquid inlet pipe is provided with a liquid outlet at one end close to the screw feeder, the liquid outlet is fixed on the side plate, and the outlet The liquid port faces the baffle plate; the flow meter and valve are arranged between the liquid inlet pipes and connected with the liquid inlet pipes; The mixing homogenizer includes a centrifugal paddle, a shear cylinder, a homogenizing shaft and a mixing motor, the centrifugal paddle is sleeved on the homogenizing shaft, and the centrifugal paddle is connected to the homogenizing shaft through the homogenizing shaft. The mixing motor is connected, the centrifugal paddle is placed in the shearing cylinder, and the lower part of the shearing cylinder is provided with several rectangular holes passing through the inside and outside along the circumference of the cylinder wall for the medium to flow through; The stable stirrer includes a stirring paddle, a stirring shaft and a stirring motor, the stirring paddle is connected to the stirring motor through the stirring shaft, and the stirring paddle is sleeved on the stirring shaft; The slurry container is horizontally provided with a top surface at its top, the middle part of the slurry container is provided with a horizontal plate, and the inside of the slurry container is provided with a vertical plate connected vertically with the top surface and the horizontal plate; on the top surface A slant plate is arranged obliquely between the horizontal plate and a powder dropping port on the top surface, and the powder dropping port is directly opposite to the powder outlet. 2. The powder-liquid feeding and mixing system according to claim 1, characterized in that: both the mixing motor and the stirring motor are equipped with reducers. 3. The powder-liquid feeding and mixing system according to claim 1, characterized in that: the lower edge of the inclined plate is connected to the edge of the mouth of the shearing cylinder, and the width of the upper edge of the inclined plate is larger than that of the The width of the powder drop opening in the same direction. 4. The powder-liquid feeding and mixing system according to claim 1, wherein the shearing cylinder is suspended from the lower surface of the horizontal plate. 5. The powder-liquid feeding and mixing system according to claim 1, wherein the horizontal plate is located above the highest liquid level in the slurry container. 6. The powder-liquid feeding and mixing system according to claim 1, characterized in that: the position of the centrifugal paddle is higher than the position of the stirring paddle. 7. The powder-liquid feeding and mixing system according to claim 1, characterized in that: the axis of the screw feeder is arranged obliquely, and one end driven by the motor of the feeder is higher than the other end.

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