JPS6024565Y2 - Continuous bentonite liquid manufacturing equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a continuous bentonite liquid production apparatus that continuously produces a colloidal suspension of bentonite for use in civil engineering construction, soil improvement, polling mud, etc.

Bentonite has the ability to swell by absorbing water and expand to a volume of 5 to 10 times the size of its original size; it can be dispersed in water to form a colloidal suspension; it has fine plate-like crystal particles that are in close contact with each other, and It has a matching viscosity and thixotropic properties that allow mutual conversion between sol and gel.

However, when bentonite powder is mixed into water, the parts around the powder particles absorb water and swell, forming lumps, resulting in a lump-like mixed solution.

Therefore, in order to sufficiently stir these materials and create a homogeneous colloidal suspension, a batch method has been conventionally used in which water and bentonite are placed in a predetermined ratio in a container and stirred using a bladed stirrer.

However, these batch methods do not provide sufficient stirring, are not suitable for preparing a homogeneous solution, and require a considerable amount of time.

Furthermore, when bentonite liquid is used in large quantities, the degree of homogeneity varies from batch to batch, which poses problems in terms of construction.

Therefore, this idea was made in view of the conventional problems, and consists of a feeder that supplies a fixed amount of bentonite powder, and a water tank that receives the bentonite powder from the feeder on the inside of the inner peripheral surface that overflows and forms a water film. a membrane hopper;
An auger mixer is connected to the water membrane hopper and roughly kneads the liquid mixture containing lumps created by mixing bentonite, and an auger mixer is connected to the auger mixer and uses pins installed on the rotating plate and bulkhead plate to finely mix the bentonite lumps. The purpose is to continuously produce a homogeneous bentonite liquid by configuring a continuous bentonite liquid manufacturing equipment from a high-speed mixer that crushes and kneads and a water supply device that supplies a fixed amount of water to a water film hopper. .

Next, this invention will be explained based on the drawings.

FIG. 1 and FIG. 2 are diagrams showing an embodiment of this invention.

In the figure, 10 is a rotary feeder as a feeder, and blades 12 are provided at equal intervals around a rotor 11.
A constant volume is measured between the case 13 and the inner circumferential wall.

There is one bentonite powder input port above the feeder 10.
4, and a drop-in port 15 for discharging measured bentonite powder is provided below.

The water film hopper 20 has a substantially inverted truncated cone shape, and is installed below the feeder 10 with an opening 21 facing the drop opening 15 of the feeder 10.

An annular groove 22 is formed around the opening 21 to form a water film hopper 20.
It is formed so that a water film is formed on the inner circumferential surface of the tube.

An auger mixer 30 is connected to the lower end opening 23 of the water film hopper 20, and an auger 31 having a combination of a spiral and a paddle can be rotated by a motor 32.

A high speed mixer 40 is connected to the tip of the auger mixer 30 via a connecting pipe 33.

This high speed mixer 40 is shown in detail in FIG.

That is, a kneading body 42 is provided adjacent to the pump 41, and a rotating shaft 43 passing through the center of the kneading body 42 has one end connected to the impeller 44 of the pump 41 and the other end connected to the motor 4.
5.

A rotary plate 47 on which a plurality of pins 46 are implanted on the rotary shaft 43
A plurality of them are provided spaced apart from each other.

Separating plates 48 are fixed to the kneading body 42 so as to be located on both sides of the rotary plate 47 and have a hole 48a in the center.

The separator plate 48 has a pin 46 that moves with the rotation of the rotary plate 47.
Pin 4 so that it passes between the pins in a position that does not interfere with
9 have been planted.

Further, 50 is a water supply device, in which a pump 52 is provided in a water tank 51, and is piped from the pump 52 to the groove 22 of the water film hopper 20 via a flow meter 53 that measures the amount of water supplied and a valve 54 that adjusts the flow rate. ing.

Note that 60 is a base counter that displays the amount of bentonite powder supplied and the amount of water supplied.

Next, the action will be explained.

When bentonite powder is introduced through the input port 14 of the feeder 10, the rotor 11 rotates and the bentonite powder is supplied to the water film hopper 20 in a fixed amount.

On the other hand, from the water supply device 50, the amount of water measured by a flow meter 53 and adjusted by a valve 54 is supplied to the water film hopper 20 by a pump 52.

The supplied water is once injected into the annular groove 22 and overflows to form a water film on the inner peripheral wall surface of the water film hopper 20.

By forming a water film in this way, bentonite powder is prevented from adhering to the wall surface.

The bentonite powder and water supplied to the water film hopper 20 are kneaded in an auger mixer 30 while being temporarily swollen by an auger 31 that is a combination of a spiral and a paddle.

This kneading produces large bentonite chunks which are then sent to a high speed mixer 40.

In the high-speed mixer 40, the liquid mixture pumped by the impeller 44 of the pump 41 passes through the hole 48a of the partition plate 48, passes over the outer periphery of the rotating plate 47, and then passes through the kneading body 42 in a meandering flow to the next partition plate 48. pass.

During this passage, the mixed liquid passes between the pins 46 and 49, so that the bentonite becomes fine particles and becomes a colloidal suspension.

In this way, a colloidal suspension of bentonite is continuously produced and supplied by continuing to supply the bentonite powder and water in a fixed quantity.

As explained above, according to this invention, bentonite powder and ice are continuously fed in a fixed amount into a water film hopper, are mixed for the first time with a waist auger, and are crushed when the pins of a rotary plate pass between the pins of a waist bulkhead plate. Since the system is configured to mix and knead, it is possible to continuously manufacture and supply a colloidal suspension of bentonite.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view showing the structure of the continuous bentonite liquid production apparatus of this invention, and FIG. 2 is a front cross-sectional view of a high-speed mixer. 10...Feeder, 11...Tater 12...Blade, 20...Water film hopper 22...Groove, 30... ...Auger mixer, 31...Auger 40...High speed mixer, 41・mass pump, 42...
・Kneading body, 43... Rotating shaft, 46.49...
... Pin, 47 ... Rotating plate, 48 ...
...Partition plate, 50...Water supply device, 53...
···flow meter.

Claims (1)

[Claims for Utility Model Registration] A feeder that supplies a fixed amount of bentonite powder; a water film hopper that receives bentonite powder from the feeder on the inside of an inner circumferential surface on which a water film is formed by overflow; and the water film hopper. an auger mixer connected to the auger mixer for roughly kneading the liquid mixture containing lumps produced by mixing bentonite; A continuous bentonite liquid production apparatus comprising a high-speed mixer for kneading, and a water supply device for supplying a fixed amount of water to the water film hopper.