JP2002037457A - Unloading method for powder and grain cargo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an unloading method for powder and grain cargo for additionally loading products of the weight corresponding to the weight of a hydraulic unit to heighten the transport efficiency because the hydraulic unit for rear dumping is not needed in a method or rear dumping a vessel storing powder and grain products of a bulk transport automobile and discharging the products. SOLUTION: The front of the cargo storing vessel carried on the powder and grain bulk transport automobile is lifted by a hoist apparatus, and rear dumped to discharge the powder and grain cargo from a discharge port positioned in the rear of the cargo storing vessel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for unloading a product in a bulk transporting vehicle such as carbon black or the like.

[0002]

2. Description of the Related Art Conventionally, in a vehicle for transporting bulk products such as carbon black in bulk, when products are to be unloaded from a product storage vessel mounted horizontally on a car body carrier, a front portion of the vessel body is An unloading method for pushing up with a hydraulic device equipped in front of the loading platform, tilting (rear dumping) the vessel body with the lower rear hinge of the vessel as a fulcrum, and allowing the granular product to flow down from the discharge port located at the rear end of the vessel. Had been done. For this purpose, it was necessary to mount a hydraulic device as a power source for tilting and lowering the vessel body on each vehicle.

[0003] Further, in such a freight transport vehicle, since there is a total weight limit at the time of loading the products, it is not possible to load a cargo product corresponding to the weight occupied by the hydraulic device by mounting the hydraulic device, so that the transportation efficiency is reduced. With limitations,
There are inconveniences such as the need for detailed inspection and maintenance of the hydraulic system for safety measures.

[0004]

SUMMARY OF THE INVENTION According to the present invention, in a vehicle for transporting bulk material such as carbon black in bulk, a product can be unloaded from a product storage vessel without mounting a hydraulic device on the vehicle body. An object of the present invention is to provide a method for unloading a granular cargo, which can solve the above problem.

[0005]

According to a first aspect of the present invention, there is provided a method for unloading a granular cargo, comprising: a cargo loading vessel mounted on a bulk cargo transportation vehicle; The portion is lifted by using a hoist facility, rear dumped, and the particulate cargo is discharged from a discharge port located at the rear of the cargo storage vessel.

The method for unloading particulate cargo according to claim 2 is characterized in that, in claim 1, the bulk cargo transport vehicle is a carbon black transport vehicle.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is applicable to a vehicle for transporting bulk carbon black products in bulk, in which a product storage vessel is horizontally placed on a cargo bed of an automobile body, and the vessel has a front head for lifting a vessel. The jig is equipped with a product outlet at the rear end position, and the vessel body is mounted on the car body carrier with a structure that allows the rear dump of the vessel body. There is no significant difference in the configuration except for the presence or absence of the above, and the present invention can be applied to a conventional bulk transport vehicle by making a partial structural change.

Further, the hoist device used in the present invention lifts and raises and lowers one end of a product storage vessel of a bulk transporting automobile, thereby acting as a power for rear dumping the vessel body, and has a lifting capacity (weight), A general-purpose machine can be used by selecting a machine that can properly set the tang and winding speed.

The hoist device to be selected is preferably of the type having a traveling (traversing) trolley. This is because, when the vessel body is lifted up and down by the hoist in the vertical direction, the displacement in the horizontal direction generated at the load point is moved and absorbed, and the function is effectively performed to always maintain the vertical movement in the vertical direction. Further, by adjusting the hoist hoisting speed and the traveling (traverse) speed of the trolley to a predetermined condition by an electric control mechanism, a more accurate and safe rear dump of the vessel body becomes possible. It is more preferable to adopt a double rail hoist as a model type, and stable hoisting and running (traversing) can be maintained.

[0010] The hoist is installed at the destination where the product storage vessel of the bulk transport vehicle is to be dumped rearward.
An existing structure can be used and / or installed appropriately by means such as providing a frame in a form that satisfies the conditions for lifting and lowering the vessel body.

The conditions for lifting and lowering include securing a space that does not hinder the running and stopping of the bulk transport vehicle, and securing a space that can hold a water pipe necessary for the vessel body to perform a rear dump at a predetermined angle. It is at least a necessary condition that a traveling (traverse) space for the hoist trolley can be secured.

When the vessel body is rear dumped, the bulk transport vehicle is immovably stopped at a predetermined position immediately below the hoist installation location and attached to the front of a product storage vessel horizontally mounted on the vehicle carrier. The lifting hook of the hoist is set on the lifting jig in a detachable state. Next, the hoist hoist motor is operated to vertically lift the forehead of the vessel body, and the hoist traveling (traversing) motor is operated to travel at a speed capable of absorbing and absorbing the horizontal displacement occurring at the load point (traversing). While maintaining the vertical lifting state, the forehead of the vessel body is lifted to a predetermined height to maintain the inclination of the vessel body at a predetermined angle. In this state, the product is discharged from the product discharge port provided at the rear end position of the vessel. When the vessel body in the dump state is lowered and restored after the product is discharged, the operation can be performed by performing an operation reverse to the lifting operation of the hoist.

The method according to the present invention is applicable not only to unloading of a product but also to loading and unloading of a hoist to a use / destination where a rear dump is required, such as when a product is put into a vessel with a rear dump of the vessel body. It can be applied by installing.

[0014]

Hereinafter, examples of the present invention will be described in comparison with comparative examples. Table 1 shows a comparison between the weight of an empty vehicle equipped with a hydraulic device and the weight of an empty vehicle according to the present invention, which is not equipped with a hydraulic device, for a carbon black product bulk transport vehicle.

[0015]

[Table 1] << Table Note >> The hydraulic device is composed of parts such as a cylinder device, hydraulic oil tank, hydraulic oil, pump, hydraulic piping, and the like.

Next, after loading and filling the carbon black product into the vessel of the bulk transport vehicle according to the present invention which is not equipped with the hydraulic device shown in Table 1, the vessel is lifted using a hoisting facility and a rear dump is performed to discharge the product. Was done. The result will be described with reference to FIG. FIG. 1 shows an example of a case where a vessel of a carbon black product bulk transport vehicle is rear dumped by a hoist facility to discharge the carbon black product in the vessel.

A product storage tank (not shown) containing a carbon black product having a bulk specific gravity of 0.35 ton / m ³ in a vessel (2) having a volume of 29.7 m ³ mounted horizontally on a loading portion of a bulk transport vehicle (1). From the upper entrance of the vessel (3)
After that, the bulk transport vehicle (1) was moved to a predetermined position immediately below the hoist facility (7) and stopped immobile.

The hoist equipment (7) has a capacity of 7.5.
An electric traveling (traversing) type double rail hoist of 8.0 m in length was used, and it was made possible to travel on two rails (8) laid on a frame (not shown).

The steel cable (1) attached to the hoist equipment (7)
After the lifting hook (9) hanging down via (0) is set in a detachable state on a lifting jig (4) attached to the vessel (2) forehead of the bulk transport vehicle (1), the steel cord ( 10) Roll up the lifting hook (9),
The rear dump was performed using a hinge (not shown) provided between the rear part of the vessel and the carrier as a fulcrum.

At this time, the hoist (7) on the rail (8) is run (traversed) while being synchronized with the hoisting speed of the steel cable (10). (2) was lifted until a predetermined inclination angle (α) was secured. In this state, the drive of the hoist (7) is stopped to maintain the rear dump state, and then the gate (5) provided at the rear end of the vessel is opened, and the discharge port (6) is opened.
From the carbon black product.

[0021]

According to the present invention, when a product storage vessel of a bulk transport vehicle is rear dumped and a granular product is unloaded, a hydraulic device serving as a drive device for rear dumping is mounted on each vehicle. This eliminates the necessity and increases the product weight corresponding to the weight of the hydraulic device, thereby improving the transportation efficiency.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an embodiment of unloading a granular cargo according to the present invention. You.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bulk transport vehicle 2 Vessel 3 Receiving port 4 Lifting jig 5 Gate 6 Discharge port 7 Hoist 8 Rail 9 Lifting hook 10 Steel cable

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koji Hirakawa 3-4-2, Fujinoki, Wakamatsu-ku, Kitakyushu-shi, Fukuoka F-term (in reference) 3F076 AA07 CA04 CA07 DA11 DA20 DB13

Claims (2)

[Claims] 1. A cargo storage vessel mounted on a bulk cargo transportation vehicle, the front portion of which is lifted using a hoist equipment and rear dumped, and the particulate cargo is discharged from an outlet located at the rear of the cargo storage vessel. Discharging method for unloading particulate cargo. 2. The method according to claim 1, wherein the bulk cargo transportation vehicle is a carbon black transportation vehicle.