SU411018A1 - - Google Patents

Description

The device is qualified for the mechanized transfer of pulverized materials from the holds of vessels with sliding or removable hatch covers directly to shore silos. Known inverters for unloading pulverized materials from vessels contain suction and other devices mounted in a single unit, and a frameless self-propelled trolley on which rakes are mounted, a blower (compressor), a precipitating chamber with a discharge screw and an aeration chamber. Pneumatic forklift lowers directly to the vessel's historic and hold vessel with a crane. Connects to onshore pipelines with flexible hoses. The disadvantages of such pneumatic loaders are low productivity, breakthroughs of compressed air through the pressure auger and, consequently, dusting, short transportation distance due to the lack of and the inability to use high pressure air. In addition, under adverse weather conditions, known pneumatic loaders cannot be used due to the need to open the hold. The purpose of the invention is to increase the efficiency of handling operations in any weather. This is achieved by the fact that the platform is made in the form of a ship's hatch cover, installed on the ship's hull coamings, and provided with rollers to move it along the hold, and the compressed air is supplied from the coastal compressor station. FIG. 1 schematically depicts a pier equipped with pneumatic rebloaders; in fig. 2 - the proposed pneumatic belt loader in plan; in fig. 3 shows a section along A - A in FIG. 2; in fig. 4 is a view along arrow B in FIG. 2. The pneumatic forklift consists of a rigid metal structure - a platform (self-propelled or non-self-propelled), suction and pressure parts, as well as a turning part of the transport pipelines. The platform is made in the form of a hatch flap 1 of the vessel installed on the ship’s coamings and provided with rollers 2 for moving it along the hold. The suction part consists of a self-propelled intake organ 3 with scooping discs, a material pipeline 4, and a vacuum unit with a settling chamber-bunker 5. A mechanism 6 is installed on the platform to lift the intake organ above the material layer in the vessel hold before unloading. and transport pipeline 8.

The compressed air is supplied to the chamber pump from the coastal compressor station.

The rotary part of the transport pipelines exit is made in the form of a rotary bracket 9 with branch pipes 10 fixed in it, equipped with axial hinges 11.

Pneumatic forklift works as follows.

After the mooring of the vessel, the hatch covers are pushed apart at the mooring, and a Pneumatic Handler is installed directly on the rolling rails of the hatch covers into the lumen formed. The hatch covers are attached to the platform of the pneumatic belt loader, ensuring constant closure of the hold. The movement of the pneumatic belt loader along the ship's hold in the process of transshipment operations is carried out by self-propelled or by ship's winches designed to move the hatch covers. Intake body 3 at the time of installation raises to full height.

After installing the pneumatic belt handler on the vessel, air and transport pipelines are connected to it and electricity is supplied. The vacuum unit is turned on, the ship is unloaded.

As the material is selected, the intake body, under the action of its own weight, lowers to the floor of the ship’s hold and moves within the limits allowed by the material line 4.

After unloading the strip over the entire width of the hold, the platform moves along it to provide the intake body with a front of work. The operation of the intake organ is monitored by an operator from a cabin located on the platform of a pneumatic supercharger through a transparent floor.

Swivel bracket 9 with pipe outlets 10 allows to avoid excessive bending of the connecting coastal transport pipelines when the pneumatic load handler moves along the vessel's hold.

At the end of the unloading, the intake body is raised by the mechanism 6 to the extreme upper position and the Pneumatic forklift is transferred by crane with a crane and installed on the shore. The described Pneumatic Loader allows for high performance both on the suction line due to a low suction height (not more than 7 m) and on the discharge line by using a chamber pump with compressed air supply from a powerful coastal compressor station; favorable sanitary conditions due to the use of an intake organ of suction Tina and the absence of breakthroughs of compressed air from the injection part; the ability to perform handling operations in any weather due to the implementation of the platform in the form of a hatch cover of the vessel. The material is transported directly to the silo warehouse almost regardless of its location in relation to the berth (limited only by the strength of the flexible hoses).

Cleaning the ship's hold is carried out simultaneously with its unloading, since such structures of the intake organ provide for almost complete unloading of the material from the hold.

Subject invention

Pneumatic loader for unloading dusty materials from ships, containing suction and delivery devices mounted on a common platform, characterized in that, in order to increase the efficiency of handling operations in any weather, the platform is designed as a ship's hatch cover installed on the ship hold coamings and is equipped with rollers to move it along the hold, and supplying compressed air to the injection unit ocynie is from the coastal compressor station. . Eöregoi nran IPl Fig 1

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