JP2694743B2 - Cement milk production equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement milk manufacturing apparatus.

[0002]

2. Description of the Related Art As a cement milk production apparatus, a mixing type in which a screw is provided in a cylindrical drum (June Sho 63-33622) or a jet mixer type in which a water jet is used (June Sho 61-15938). )
It has been known.

[0003]

The screw mixing type mixer can surely produce cement milk having a predetermined concentration by forming a reflux passage connecting the outlet and the inlet of the mixer, but each time it is produced. It is necessary to remove the cement adhering to the inside of the screw or the cylindrical drum, but the cement is likely to be in an adhering state because the boundary portion between the screw and the rotary shaft at the base of the screw becomes a recess. For this reason, careful cleaning is required and it cannot be said that the device is easy to use. In addition, the jet type mixer is capable of continuous production of cement milk, but it is difficult to accurately control the supply of cement powder by gravity drop supply from the storage location, and obtain cement milk of uniform concentration. Difficult to do. Further, when the powder is supplied to the mixer location and the powder remains and absorbs moisture, cement hardening occurs at the location. Therefore, the present invention proposes a new cement milk production apparatus which is easy to clean and can produce cement milk of uniform concentration.

[0004]

A cement milk production apparatus according to the present invention is provided with a storage tank section, a pump section connected to the storage tank by piping, and a mixing tank for cement powder and water.
It is characterized by comprising a mixed air jet pump type mixer section for injecting a pressure fluid from a pump section to produce cement milk from the injection water and the mixture from the mixing tank.

Further, in the cement milk producing apparatus, the mixer section and the storage tank section are connected by piping to form a whole circulation system, and the cement milk discharge section is provided in the pipe between the mixer section and the storage tank section. It is characterized in that it is provided in a branched manner, and in particular, the water to be supplied to the mixing tank is jetted along the inner peripheral surface of the mixing tank as pressure water branched from the pump section to form a vortex, which becomes a vortex. It is characterized by dropping and supplying cement powder to carrier water.

[0006]

When a suitable amount of water is stored in the storage tank section and the pump section is operated, the water is supplied to the mixing tank and the mixed air jet pump. When cement powder is added to the mixing tank at the same time, the fluid in the mixing tank serves as a carrier for the cement powder and is supplied to the jet pump that serves as a mixer, and the cement powder is uniformly mixed with water by the jet water of the jet pump.

In particular, if the whole is a circulation system, cement powder can be sequentially supplied during the circulation and the total amount of cement and the total amount of water can be easily set, so that cement milk of uniform concentration can be produced. Further, when the supply water in the mixing tank is made to vortex, a funnel is formed by the carrier water, and the cement powder is supplied to the mixer reliably and without any trouble.

[0008]

Next, an embodiment of the present invention will be described. The cement milk manufacturing apparatus shown in the embodiment is composed of a storage tank unit 1, a pump unit 2, and a mixer unit 3, and a circulation system is formed by connecting the three by piping. The storage tank unit 1 includes a water tank 11 arranged at an appropriate height, and a water supply unit 12 that supplies water to the water tank 11 (the water supply unit of this embodiment is realized by supplying water to the circulation system). It is an aquarium 11
Is connected to the pump unit 2.

The mixer section 3 is composed of a mixed jet pump type mixer 30 utilizing the pressure water from the pump section 2 and a mixing tank 31 for supplying cement.
Is a pressure water jetting section 32, an air-mixing air introducing section 33,
It is composed of a mixture suction section 34 and a mixer tube 35 for jetting and mixing the mixture together with high-pressure water. The mixing tank 31 is arranged above the mixture introducing section 34, and a branch pipe 36 from the pump section 2 is provided.
The opening end of the mixing tank 31 is provided in the inner peripheral surface direction of the mixing tank 31,
The cement powder supply part 37 is faced to the upper opening of the, and the mixer pipe 35 and the water tank 11 are connected by the circulation pipe 4, and the cement milk discharge part 5 is provided in the circulation pipe 4 in a branched manner. It is a thing.

When a predetermined amount (the amount of water required for the cement milk to be produced) is stored in the storage tank portion 1 from the water supply portion 12 through the circulation path and the pump portion 2 is operated, the water is mixed. It is supplied to the inside of the tank 31 and the injection unit 32. By supplying high-pressure water (carrier water) into the mixing tank 31,
The inside becomes a vortex flow state and a funnel body of the carrier water is formed. On the other hand, when high-pressure water is jetted from the jetting unit 32, the high-pressure water introduces air from the air-mixing air introducing unit 33, and in a mixed state, the mixture suction unit 34 further sucks the cement powder mixed water, and the mixer pipe 3
It is jetted toward 5. Therefore, when the cement powder A is supplied to the mixing tank 31, the cement powder A is surely supplied.
5, the cement powder is uniformly mixed with water by spraying water, and cement milk B is produced.

Since the whole is a circulation system, when the concentration of the cement milk B mixed in the mixer pipe 35 is lower than a predetermined value, the cement milk B is returned to the storage tank portion 1 again through the circulation passage pipe 4 and cement powder again. Since A is mixed, cement milk B having an arbitrary uniform concentration can be easily produced by controlling the amount of cement and the amount of water, and the produced cement milk B is taken out from the cement milk discharge part 5 and used. . Of course, it is also possible to continuously produce cement milk by supplying the amount of water supplied from the pump unit 2 and the cement powder A corresponding to the amount of water supplied without circulating.

Further, after the cement milk is produced, there is an advantage that water can be easily supplied to the apparatus while water is circulated while being discharged from the cement milk discharge section 5.

[0013]

INDUSTRIAL APPLICABILITY As described above, the present invention is a cement milk manufacturing apparatus employing a jet pump type mixer, and in particular, cement powder is supplied to the mixer section together with water (conveying water). The supply of cement powder is carried out smoothly, and the carrier water in the mixing tank is made into a swirl flow to make the supply of cement powder to the mixer pipe more reliable. Further, it has an advantage that the whole is formed in a circulation system, the concentration and concentration of cement milk can be easily adjusted, and cleaning after use can be easily performed.

[Brief description of the drawings]

FIG. 1 is an overall pipeline diagram of an apparatus according to an embodiment of the present invention.

FIG. 2 is a partially cut front view of the mixer section.

FIG. 3 is a plan view of the mixing tank.

[Explanation of symbols]

 1 Storage Tank Section 11 Water Tank 12 Water Supply Section 2 Pump Section 3 Mixer Section 30 Mixer 31 Mixing Tank 32 Injection Section 33 Air Mixing Air Introduction Section 34 Mixture Suction Section 35 Mixer Pipe 36 Branch Pipe 37 Cement Powder Supply Section 4 Circulation Pipe 5 Cement milk discharge part

Claims (3)

(57) [Claims] 1. A storage tank part, a pump part connected to the storage tank by piping, a mixing tank for cement powder and water, and a pressurized fluid jetted from the pump section to jet water and a mixture from the mixing tank. An apparatus for producing cement milk, comprising: a mixed jet pump type mixer section for producing cement milk in. 2. The cement milk manufacturing apparatus according to claim 1, wherein the mixer section and the storage tank section are connected to each other by piping to form a whole circulation system, and a pipe between the mixer section and the storage tank section is formed. An apparatus for producing cement milk, characterized in that the cement milk discharge part is provided in a branched manner. 3. The cement milk manufacturing apparatus according to claim 1 or 2, wherein the water to be supplied to the mixing tank is jetted along the inner peripheral surface of the mixing tank as pressure water branched from the pump portion to form a vortex flow. A cement milk manufacturing device characterized by dropping and supplying cement powder to a vortexed carrier water.