JPS62106829A - Continuous premixer - Google Patents

Abstract

PURPOSE:To accurately premix even a powder or a viscous material, by a method wherein a particulate material is continuously and quantitatively supplied to be fallen from a screw conveyor type transfer part equipped with an angle setting means and a liquid is obliquely supplied to said falling material in a jet state to mix both components in a shaftless screw type mixer. CONSTITUTION:The particulate or viscous material quantitatively supplied to a receiving port 4 is transferred by a screw conveyor 6 and falls in the inlet 8 of a shaftless screw type mixing transfer part 2. At this time, a liquid is obliquely supplied to the falling material from a supply port 11 in a jet state and both components are mixed in a shaftless screw type mixer to be supplied to the mixer of the next stage from a supply port 9. The transfer part 2 can be inclined at an aribitrary angle by an angle setting means 13 and, because the material is transferred in a sealed state while rising along a conveyor type transfer part, said material is not scattered even if it is a powder. Thus premixed material can be accurately mixed in the mixer of the next stage within a short time.

Description

Detailed Description of the Invention "Objective of the Invention" (Industrial Application Field) The present invention provides continuous premixing by spraying a liquid to a powdery or viscous material that is continuously supplied in a fixed quantity. However, it relates to a continuous premixer for transferring to the next stage mixer or kneader.

(Prior technology) Conventional mixers for mixing powder materials or fluid materials include those that use agitation in a mixing tank and those that use screw extrusion. but,
When supplying liquid to powder materials and kneading them, or mixing viscous materials with each other or liquid with viscous materials, it is not possible to ensure a sufficient mixing state with a normal mixer alone, so kneading is necessary. A method of repeating this process was adopted, and it took a long time to obtain a desired mixing state.

(Problems to be Solved by the Invention) The conventional means for repeating kneading described above requires a plurality of kneading devices, and the material transfer speed between the devices varies and quality deteriorates. There are disadvantages such as an unavoidable increase in equipment costs. In particular, for example, when cement, etc. is uniformly and continuously dispersed and kneaded in waste mud water, etc. generated from underground excavation of civil engineering, etc., conventionally, cement tends to form so-called "mamako". There was a drawback that it was not possible to mix properly.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to make it possible to continuously premix powder, viscous material, and liquid material that are continuously supplied in a fixed quantity and to transfer the mixture to the next stage mixer. Another object of the present invention is to provide a continuous premixer configured to improve the mixing properties of powder materials or viscous materials that are difficult to mix and knead, and liquid materials.

"Structure of the Invention" (Means for Solving the Problems) The continuous premixer according to the present invention is for transferring powdery material or viscous material that is quantitatively supplied to a receiving port provided on one end side to an outlet side. a screw conveyor-type transfer section equipped with a screw conveyor; disposed on the lower side of the transfer section;
A shaftless screw type mixing and transferring section equipped with an inlet to receive the material falling from the outlet side and a shaftless screw set mixer for transferring to the next stage kneading machine side, and a shaftless screw type mixing transfer section provided near the above inlet. A liquid supply port is arranged at an angle in order to inject the liquid obliquely to the material that is being held and falling, and a certain inclination angle is set for the shaftless screw type mixing transfer section and the screw conveyor type transfer section. and angle setting means provided to obtain the angle.

(Effect) Quantitative amount at the receiving port. The supplied particulate material or viscous material is transferred by a screw conveyor and falls into the inlet of a shaftless screw type mixing transfer section arranged on the lower stage side of the screw conveyor. At this time, liquid is injected obliquely from the liquid supply port to the falling material, and is transferred to the next stage of the kneading machine by the shaftless screw set mixer.

Since the shaftless screw type mixing transfer section and the screw conveyor type transfer section can be tilted at any angle by the angle setting means, the material transferred inside the screw conveyor is transferred while moving up L in the cylinder and falls. At times, the liquid, such as mud water, is sprayed diagonally and is mixed with the liquid along a downward slope in the cylinder of the shaftless screw type mixing transfer section, and transferred to the next stage mixer.

In this way, the premixing is carried out continuously and accurately, and the mixture can be accurately mixed in a short time in the next-stage mixer. Further, even if the material is powder, it is transported in a sealed state within the screw conveyor type transfer section, so it will not scatter.

(Example) An example of the continuous premixer according to the present invention will be explained based on the drawings. FIG. 1 is a sectional view, FIG. 2 is a side view, and FIG. FIG. 4 is a front view showing how it is attached to a mixer, and FIG. 5 is a front view showing how it is attached to another type of mixer.

The entire continuous premixer A of the present invention is composed of a screw conveyor type transfer section 1 and a shaftless screw type mixing transfer section 2 disposed below the screw conveyor type transfer section 1. A receiving hole 4 is provided at one end of the 3, and an outlet 5 is provided at the other end, and the powder or granular material or viscous material supplied in fixed quantity to the receiving port 4 is transferred to the outlet 5 side in the transfer cylinder 3. A screw conveyor 6 is arranged for this purpose. As for the shaftless screw type mixing transfer section 2, an inlet 8 communicating with the outlet 5 is formed in the mixing tube 7 arranged symmetrically at the lower stage of the transfer tube 3, and a position corresponding to the receiving port 4 is formed. A material supply port 9 to the next mixer B (or C) is formed below the mixer B (or C), and a shaftless screw mixer 10 is disposed within the mixing cylinder 7 . Fill in h-
A liquid supply port 11 is arranged near the point 8 so as to be inclined downward.
It is designed to spray liquid at an angle to the falling material.

Screw conveyor type transfer section 1 configured as above
One end of the entire shaftless screw type mixing transfer section 2 is pivoted to the next-stage mixer B by a support shaft 12, and the other end is set at a constant inclination angle. It is supported by an angle setting means 13 that looks like this. As this angle setting means, an oil jack or a jack using a screw shaft can be used. In the figure, 14 is a chain wheel for rotating the screw conveyor 6, and 15 is a chain wheel for rotating the shaftless screw type mixing transfer body 10, and these wheels are rotated by a common drive source 16 via a chain 17. However, in the embodiment, the screw conveyor 6 is set to rotate at 100 rpm, and the shaftless screw type mixing transfer body 10 is set to rotate at 300 rpm.

Next, to explain an example of the operation of an uninvented continuous premixer, the powdery material or viscous material supplied in a fixed amount to the receiving port 4 is transferred by the screw conveyor 6, and the shaftless screw type mixer arranged on the lower stage side is used. It falls into the entrance 8 of the transfer section 2. At this time, the liquid supply port 1 is
Liquid is obliquely sprayed and supplied from 1 and transferred to the next stage kneading machine B side by a shaftless screw set mixer IO.

Since the shaftless screw type mixing transfer section 2 and the screw conveyor type transfer section 1 can be tilted at any angle by the angle setting means 13, the material transferred in the screw conveyor type transfer section 1 is The cylinder 7 of the shaftless screw type mixing transfer unit 2 receives liquid jets from an angle when it falls.
Inside, the liquid is mixed along the slope and transferred to the next stage mixer B.
It is transferred down to the side. In this way, the premixing is performed continuously and accurately, and the mixture can be mixed accurately in a short time in the mixer B at the next stage. Further, even if the material is powder, it is transferred in a sealed state within the screw conveyor type transfer section 1, so that it will not scatter unnecessarily.

(Effects of the Invention) In the continuous premixer according to the present invention, the powder or granular material or viscous material supplied in a fixed quantity to the receiving port is transferred by a screw conveyor, and is input to the shaftless screw type mixing transfer section disposed on the lower stage side. As the materials are allowed to fall, liquid is sprayed obliquely from the liquid supply port to the falling materials, and the materials are transferred to the next stage kneading machine while being mixed in the shaftless screw type mixing transfer section. Even if it is a powder or viscous material, it can be premixed accurately, and the first stage mixer can sufficiently mix it in a short time.

In particular, the shaftless screw type mixing transfer section and the screw conveyor type transfer section can be tilted at any angle by the angle setting means, so that the material is transferred while rising inside the screw conveyor type transfer section, and the material is powder. However, in the cylinder of a screw conveyor, the liquid is transported in a sealed state, so it does not scatter unnecessarily.Also, when a sheet is dropped, the liquid is sprayed diagonally, and in the cylinder of a shaftless screw type mixed conveyor, By being mixed with the liquid along the slope and transferred to the next mixer side, it is possible to continuously and accurately pre-mix the liquid.
The mixer in the next stage can mix accurately in a short time.

[Brief explanation of drawings]

The drawings show an embodiment of the continuous premixer according to the present invention, in which Fig. 1 is a sectional view, Fig. 2 is a side view, Fig. 3 is a side view seen from the other side, and Fig. 4 is a mixing machine. FIG. 5 is a front view showing how it is attached to another type of mixer.

Claims (1)

[Claims] A screw conveyor type transfer part equipped with a screw conveyor for transferring powdery material or viscous material supplied in a fixed quantity to a receiving port provided on one end side to an outlet side, and a screw conveyor type transfer part disposed on the lower stage side of the screw conveyor type transfer part. , a shaftless screw type mixing and transferring section having an inlet for receiving the material falling from the outlet side and having a shaftless screw type mixer for transferring to the next stage kneading machine side;
A liquid supply port provided near the inlet and arranged at an angle to inject liquid obliquely to the falling material; 1. A continuous premixer comprising: angle setting means for setting an inclination angle.