JPS6245331A - Apparatus for contact mixing of particulate material and liquid - Google Patents

Abstract

PURPOSE:To obtain the titled apparatus capable of homogenously and rationally performing mixing, by providing a spray nozzle and a conduit in the mixing cylindrical body of a particulate material mixer in a communicated state and connecting the conduit to the specific liquid feed pump unit and the hot air generator on the ground. CONSTITUTION:When a switch is closed, a power apparatus is driven and a mixing cylinder 5 is rotated not only around the central axis thereof but also around the axis connecting both support shafts 4 along with a revolving cage 1. At the same time, a solenoid valve 16 is opened and the diaphragm pump 14 of the liquid feed pump unit A on the ground is operated and the liquid in a liquid storage tank 15 is sprayed from the spray nozzle 9 provided to the leading end of a conduit 8 through a liquid feed hose 18 and a liquid feed pipe 7. Therefore, the liquid is uniformly contacted and mixed with the particulate material rotating and moving in the mixing cylindrical body 5 with rotation. Further, hot air from a hot air generator 21 is blown in the mixing cylindrical body 5 through a change-over valve 18 and an air feed pipe 20 to develop hot air drying and granulation effect.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to an improvement in a contact mixing device for powder and liquid.

(Prior Art) Difficulty in contact between spray liquid and powder particles, which is common in conventional continuous type and batch type combination devices.

The disadvantage of being a stepchild due to lack of close contact, and also the disadvantage of small amounts of fine powder, such as when mixing small amounts of fine powder with large amounts of powder and granules in chemicals, ceramic materials, pharmaceutical preparations, etc. When diluting the liquid and spraying it onto powder or granules, or when coating leftover food, feed, etc., such as when impregnating tong food with beef tallow. In order to eliminate various defects such as poor contact mixing of powder and liquid and failure of coating due to shape destruction of the powder, the inventor of this 1M has already researched and devised a contact mixing device for powder and liquid. did. That is, it consists of a rotating cage, which is rotatably supported by a support shaft at the substantially center of each side on a support base, and a rotatable mixing barrel pushed through the rotating cage. In a powder mixer configured to provide two rotations: rotation around a central axis and rotation with a rotating cage using both support shafts as fields, the mixing cylinder is disposed approximately at the center of the mixing cylinder. A liquid atomizing device such as a spray nozzle is introduced from the outside to constantly spray a finely divided liquid onto the surface of the moving powder inside the barrel and evenly mix the powder and liquid. This is a contact mixing device for powder/grain material and liquid.

However, in the above device, since the mixing cylinder performs a complex combination of rotation around its central axis and rotation together with the rotation cage, it is generally not necessary to use a piston for liquid extrusion and spraying. A piston pump-type liquid container, an air cylinder serving as a power source for the piston, and numbering devices such as a valve for the piston must be attached to the mixing cylinder, and a balance weight must be attached for this purpose. Therefore, the mixing barrel becomes heavy, making it impossible to expect even and well-balanced rotation, requiring a large rotational torque, and having the disadvantage that failures are likely to occur. In addition, it was not possible to replenish the liquid xH and adjust the spraying pressure according to the viscosity of 14 f8n.

(Technology [1 Porcelain Division]) Therefore, this invention allows for free replenishment of the spray liquid and adjustment of the spray pressure regardless of the operation of the mixing cylinder, and also achieves uniformity by the light and well-balanced rotation of the mixing cylinder 1. The technical objective is to enable rational contact mixing of powder and liquid. Furthermore, the sprayed powder may be dried by blowing warm air from an external hot air generator instead of the spray liquid.

(Technical Means) This invention has been made to solve the above-mentioned technical problem, and the device of this invention will be described in detail below with reference to the embodiments shown in the drawings. Approximately in the center of both sides are rotating cages rotatably supported by support shafts. Note that 3 is a bearing. Reference numeral j denotes a mixing cylinder having a removable cover a at one end, which is rotatably inserted into the rotating cage. And in the mixing cylinder j,
The center @? The granular material mixer is configured to provide rotation about the shaft and rotation with the rotary cage about both the support shafts. Note that Part B is a cover. First, a conduit tube is inserted into the +3iJ mixing cylinder 5 from the outside along its central axis, and the tip of the conduit reaches approximately the center position inside the mixing cylinder 5, and a spray nozzle is provided at the tip. 0 and 7 are liquid feeding tubes that are inserted from the outside into one (left side) support shaft of the rotating cage along the central axis, and are inserted at right angles at the base end of the support shaft l. After being bent and exiting, it is extended to the vicinity of the base end of the conduit outside the mixing barrel 5 along the rotation cage/and its cover B, and its tip is connected to the base end of the conduit G by a rotary joint. They are connected via int 10. Note that /2 is a drain valve. Also, /4 is a diaphragm pump.

/j is a liquid storage tank, which is provided on the base /3 on the ground. A safety valve/7 and a solenoid valve/6 are respectively interposed on the liquid sending side of the diaphragm pump/g, and the base end of the liquid sending pipe 7 is connected to the liquid sending hose via a rotary joint. is connected to. In other words, the conduit is the ground.
It is connected to a liquid sending pump unit A consisting of a second diaphragm pump /ll, a liquid storage tank /j, various valves, etc. through a rotary joint of 10°.

In the above case, the liquid pump unit A may be set, for example, on a cart with casters so that it can move freely on the ground. Further, the liquid feed hose /g is connected to the hot air generator 2/ by a blower pipe 20 via a switching valve /q, and by switching, hot air and lice can be blown into the mixing cylinder j.

(Operating state) When the switch is turned on now, the rotary power device is driven, and the mixing barrel S rotates around its central axis as described above, and the rotating cage around both support shafts. and rotation. At the same time, the 1 magnet and V/O open and the diaphragm pump 4' is activated, and the liquid in the liquid storage tank S is sprayed from the spray nozzle at the end of the conduit through the liquid supply hose /F and the liquid supply pipe 7. The ceremony will be held. Therefore, along with the rotation, the mixing cylinder j
The liquid is evenly mixed with the powder that rotates inside the container.

(Effects of the Invention) As described above, the present invention is an above-ground diaphragm pump in which a conduit is introduced from the outside into the mixing barrel so that the tip spray nozzle reaches almost the center of the interior.

A liquid pump unit consisting of a liquid storage tank and various valves.

Since the mixing tube is connected with a rotary joint, unlike conventional mixing cylinders, it is not heavy, and the light and even rotation allows for even and rational contact mixing of powder and liquid. In addition, it has outstanding effects such as being able to freely replenish the liquid storage tank with the spray liquid and adjust the spray pressure according to the viscosity of the spray liquid, regardless of the operation of the mixing barrel device.

Also, since a diaphragm pump is used, there are excellent effects such as the liquid being corroded by chemicals and becoming unusable, the liquid leaking to the outside, and the mixing of foreign molecular contaminants. When mixing fine powder, which is difficult to use with this device, with a large amount of powder or granules at an extremely high weight, an excellent mixture can be obtained by liquefying the fine powder to thin it and spraying it into the powder or granules in the mixing pond. Also, unlike forced mixing using a blade, the surface and bottom can be sprayed without destroying the particle shape, and even contact mixing can be achieved with a small amount of added liquid, which has great effects. In addition, hot air drying and grain effect can be achieved by switching the switching valve.

[Brief explanation of the drawing]

The drawings show an embodiment of the device according to the invention, and FIG. 1 is a partially cut-away plan view, and FIG. 2 is a front view. /00 rotating cage, 20. Support stand, 32. @Jo, G1.
Support shaft, So, mixed barrel, 3a, cover, Otsu9. cover,
79. Liquid feed pipe, 1. Conduit, 9. . Spray nozzle, IO, //, rotary joint, /21. Drain valve, /31. Base, /l1-9. Diaphragm pump, /j0. Savings 1ffl Hinoki, /Otsu 0. Solenoid valve, /70. Safety valve, /do0. Liquid supply hose, /wo1.
Switching valve, 208. Air pipe, 2/.

Claims (1)

[Claims] It consists of a rotating cage rotatably supported by support shafts on both sides approximately in the center of the support base, and a rotatable mixing barrel inserted into the rotating cage. In a powder mixer configured to provide rotation around a central axis and rotation together with a rotation cage around both support shafts,
A conduit is introduced from the outside into the mixing cylinder so that the spray nozzle at the tip reaches almost the center of the interior, and the conduit is connected to a liquid sending pump unit consisting of an above-ground diaphragm pump, a liquid storage tank, various valves, etc. A contact mixing device for powder and liquid that connects a hot air generator with a rotary joint via a valve.