JPS6344430B2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention]

The present invention relates to an apparatus for cleaning and removing powder raw material adhering to a powder transfer pipe.

[Conventional technology]

Recently, grains such as wheat and other grains have been transported through transfer pipes using pneumatic pressure, but these powders and grains are transported due to moisture, bends, joints, steps, etc. of the transport pipe. At present, transfer pipes are regularly disassembled into small sections for cleaning because they adhere to the pipes and reduce the pipe diameter, reducing transfer efficiency and causing mold growth. The reality is that the disassembly, attachment and detachment operations are extremely troublesome and require a great deal of effort. On the other hand, it was possible to remove and clean the raw material adhering to the transfer pipe by inserting a pressure receiving body into the transfer pipe so as to bring it into close contact with the pipe wall, and using pressure water to feed the pressure body.
As is known from Japanese Patent No. 45832 and Japanese Patent Application Laid-open No. 100754/1983, simply wiping and cleaning the pressure-receiving body by force feeding can cause problems such as packing, stepped portions, distortion, or wear at the connection section of the transfer pipe. There is a defect that it is still not possible to reliably remove and clean the powder material adhering to the concave portions etc. created by At present, it is extremely difficult to reliably remove the adhering material in this area.

[Structure of the invention]

The present invention is intended to improve such defects, and includes connecting a spherical jet body having a jet hole on its circumferential surface to a spherical elastic guide body through an elastic neck at the front and rear of an elastic pressure receiving body, respectively. The injection hole is fitted into the raw material transfer pipe and connects the base of the raw material transfer pipe to a pressure water supply device, and the injection hole slides into the base of the raw material transfer pipe through a pipe penetrating the spherical elastic guide and the elastic neck. The gist is that it is connected to a washing water supply pipe that is movably inserted therethrough. An embodiment of the present invention will be described with reference to the drawings.
An attachment tube 2 is detachably attached to the base end of a raw material transfer tube 1 for powder, granules, etc., and inside the attachment tube 2 are a spherical injection body 3 having injection holes 3' on the front and rear peripheral surfaces, and a central part. A pressure-feeding tool 7 formed of an elastic pressure receiving body 4, a rear spherical elastic guide 5, and an elastic neck 6 connecting these, respectively, is fitted, and the spherical jetting body 3 and the spherical elastic guide 5 are connected to each other. are each formed to have a smaller diameter than the inner diameter of the raw material transfer pipe 1, and the diameter of the pressure receiving recess 4' formed at the rear of the elastic pressure receiving body 4 is slightly larger than the inner diameter of the raw material transfer pipe 1, and is further spherical. A flexible pipe 8 is inserted through and fitted from the base of the injection hole 3' of the injection body 3 to the rear end of the guide body 5. Furthermore, a mounting lid body 1 is provided with a pressure water supply pipe 10 communicating with a pressure water supply device 9 at the base of the mounting pipe 2.
A cleaning water supply pipe 12 is detachably attached to the flexible pipe 8 and is slidably inserted into the rear end of the mounting lid 11 in a watertight manner. A take-out pipe 13 having a narrowed front end is detachably attached to the tip of the raw material transfer pipe 1. In the figure, 14 is a raw material storage tank, and 15 is a processing container for transporting the raw material. Since the embodiment of the present invention is configured as described above, in order to clean the raw material transfer pipe 1, after installing the attachment pipe 2 at the base and the take-out pipe 13 at the tip, the pressure water supply device When high-pressure water is supplied from the pipe 9 and washing water is sent from the washing water supply pipe 12, the high-pressure water acts on the pressure-receiving recess 4' of the elastic pressure-receiving body 4 of the pressure-feeding tool 7, causing it to come into close contact with the pipe wall. At the same time as the pressure-feeding tool 7 is being pumped, the spherical jetting body 3 jets cleaning water from its jetting hole 3' while guiding the elastic pressure-receiving body 4, thereby creating a cleaning action by the cleaning water and a pressure-receiving concave portion of the elastic pressure-receiving body 4 at the rear thereof. The adhering raw material is removed and cleaned by the wiping action of 4', and the material is pressed and transferred to the take-out pipe 13. After cleaning, the attachment pipe 2 and the take-out pipe 13 are taken out from the raw material transfer pipe 1, and especially the raw material is removed. At the bending part of the transfer pipe 1, an elastic pressure receiving body 4
is bent by the spherical jet body 3 and the spherical elastic guide body 5 from the front and back with approximately equal force via the elastic necks 6, 6, and the pressure receiving concave portion 4' is surely brought into close contact with the wall surface on the small diameter side of the bent portion. It acts as a wiping remover. In the above embodiment, the attachment tube 2 and the take-out tube 13 are attached to the transfer tube 1, but these are not necessarily necessary, and for example, the attachment lid 11 can be attached directly to the base end of the raw material transfer tube 1. Furthermore, it is more preferable to connect a hot air generator to one of the raw material transfer pipes 1 after cleaning and send hot air to actively dry the inside of the raw material transfer pipe 1. Also, it is more preferable to mix a disinfectant into the washing water.
A powder solubilizing agent may also be mixed.

【Effect of the invention】

The present invention provides a spherical injection body and a spherical elastic guide body each having an injection hole through an elastic neck at the front and rear of an elastic pressure receiving body fitted in a powder raw material transfer pipe, and connects the elastic pressure receiving body to the raw material transfer pipe. When wiping off the powder adhering to the raw material transfer pipe by force-feeding it with pressure water from the base, the powder is first sprayed from a spherical jet into the raw material transfer pipe to wash the powder, and then the elastic pressure-receiving body is used to wash the powder. Since the powder material is wiped off, the powder can be smoothly and reliably removed from the wall surface by the jet dissolution and cleaning action of the washing water and the wiping removal action of the elastic pressure receiving body, and the elastic pressure receiving body also moves back and forth at the bent part of the raw material transfer pipe. The spherical jetting body and the spherical elastic guide body bend the material almost uniformly through the elastic neck, and the material is force-fed while firmly contacting the small-diameter side wall surface of the bent part of the raw material transfer pipe, thereby ensuring wiping and removal. Therefore, it has an excellent feature that adhering powder raw materials can be efficiently cleaned without disassembling the raw material transfer pipe.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of the present invention, FIG. 2 is a longitudinal cross-sectional side view of the spherical jet body taken along line A to A in FIG. 1,
FIG. 3 is a front view showing a cleaning aspect of the present invention. DESCRIPTION OF SYMBOLS 1... Raw material transfer pipe, 2... Mounting pipe, 3... Spherical injection body, 3'... Injection hole, 4... Elastic pressure receiving body, 5
... Spherical elastic guide body, 6 ... Elastic neck, 9 ... Pressure water supply device, 12 ... Washing water supply pipe.

Claims (1)

[Claims] 1. A spherical injection body having an injection hole on the circumferential surface is connected to the front and rear of the elastic pressure receiving body via an elastic neck, respectively, and a spherical elastic guide body is fitted into the raw material transfer pipe, and the base of the raw material transfer pipe is pressurized. Cleaning of a raw material transfer pipe that is connected to a water supply device, and the injection hole is connected to a washing water supply pipe that is slidably inserted into the base of the raw material transfer pipe via a pipe that passes through a spherical elastic guide and an elastic neck. Device.