JPH0644800U - Granular mobile silo - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the equipment configuration of the mobile silo, such as measuring and transferring powder and granules. [Structure] A high-pressure tank 5 and a high-pressure tank 5 supported by a powder storage bin 3 for storing powder such as cement, and a weight detector for receiving the powder delivered from the powder storage bin 3. Compressor 1 that feeds high-pressure air
0 and the like are housed in an integrated housing to form a mobile silo, and the granular material in the granular material storage bin 3 is discharged to the high pressure tank 5 and a predetermined amount is weighed, and the receiving gate 8 is closed to close the high pressure tank 5. After sealing the high pressure air into the tank,
It is pressure-fed to a desired supply destination via a pressure-feeding pipe leading to the outside of the tank.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mobile silo of powder and granules, which has an integrated function of storing, measuring and transferring powder and granules such as cement.

[0002]

[Prior art]

 As a mobile cement silo to be installed on the construction site only during a certain construction period, as in Japanese Patent Publication No. 3-9036, a cement measuring tank is installed in the upper part of the cylindrical housing containing the cement storage bottle. In some cases, the cement discharged from the lower part of the storage bin is lifted to the cement measuring tank in the upper part by a screw conveyor installed upright in the housing, and a predetermined amount is measured and supplied to an adjacent ready-mixed concrete manufacturing plant.

[0003]

[Problems to be solved by the device]

 However, in the weighing method in which the cement is lifted to the cement weighing tank in the storage bin by the screw conveyor, it is necessary to secure the installation space for the screw conveyor and cement weighing tank in the housing, and the structure becomes complicated. Since there are many mechanical elements such as rotating parts, maintenance management is troublesome.

In view of the above points, an object of the present invention is to provide a mobile silo of powder and granules having a simple device configuration and easy maintenance.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a granular material storage bin for storing granular material, a high pressure tank supported by a weight detector for receiving the granular material discharged from the granular material storage bottle, Compressor that sends high-pressure air to the high-pressure air supply pipe that communicates with the high-pressure tank, pressure pipe that communicates with the high-pressure tank and discharges the internal granular material to the outside of the tank, and the weight detector attached to the high-pressure tank The measurement control device that detects the weight value of the powder and granules and measures a predetermined amount is housed in an integrated housing.

[0006]

[Action]

 According to the present invention, for example, a mobile silo for storing cement is installed in the vicinity of a ready-mixed concrete manufacturing plant, and when the production of ready-mixed concrete is started in the plant, the cement is supplied first at the upper part of the high pressure tank. The receiving gate is opened, the cement is discharged from the granular material storage bottle into the high pressure tank, and the amount of cement used for one batch of fresh concrete is measured by the weight detector attached to the high pressure tank. After the measurement, the receiving gate was closed to close the high-pressure tank, the high-pressure air generated by the compressor was sent into the high-pressure tank, and the cement in the high-pressure tank was sent to the ready-mixed concrete manufacturing plant side via the pressure pipe. It is supplied batch by batch.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 is a mobile silo for temporarily storing powder and granules, and an inner wall of the housing 2 forms a powder and granule storage bin 3 for storing powder and granules such as cement on an upper portion of a cylindrical housing 2. is doing. The lower part of the granular material storage bottle 3 is provided with a funnel-shaped taper downwardly, and is provided with a granular material outlet 4 at the tip thereof.

Below the outlet 4, a high-pressure tank 5 for temporarily storing the granular material is suspended via a weight detector 6 suspended from the lower portion of the granular material storage bin 3. A receiving gate 8 which is opened / closed by the operation of the cylinder 7 is arranged above the high-pressure tank 5, and the receiving gate 8 and the outlet 4 are connected by a tubular cloth 9 to serve as a drop guide for powder particles. At the same time, an extra load is not applied to the weight detector 6.

The lower portion of the high-pressure tank 5 is tapered like a funnel, and the lower end portion of the high-pressure tank 5 is inserted with a tip end of a high-pressure air supply pipe 11 connected to a compressor 10 that generates high-pressure air. I try to send in air. A flexible tube 12 is provided in the middle of the high-pressure air supply pipe 11 so that the weight detector 6 of the high-pressure tank 5 is not overloaded and the weight detection of the granular material is not hindered.

Further, the high-pressure tank 5 is provided with a pressure-feeding pipe 13 for leading out the powdery or granular material to the outside of the tank, and the other end of the pressure-feeding pipe 13 is arranged on the upper surface of the ceiling of the powdery- or granular material storage bin 3. It is inserted in the upper part of the side surface of the provided particle surge tank 14 so that the powder particles pressure-fed are introduced into the particle surge tank 14. A flexible tube 15 is interposed in the pressure feed pipe 13 in the same manner as the high pressure air supply pipe 11 so as not to interfere with the weight detection of the powder or granular material in the high pressure tank 5.

The powder / granule surge tank 14 also serves as a cyclone for separating powder, and is formed in an inverted conical shape. The powder / granule sent by high pressure air is introduced from the upper side surface of the surge tank 14. The surge tank body is swirled to separate the particles and deposit them on the bottom of the tank, while the high pressure air is led into the particles storage bin 3 through the ventilation pipe 16 connected to the upper portion of the surge tank 14. Then, the bag filter 17 disposed on the upper surface of the ceiling of the powder / grain storage bin 3 is exhausted to the outside.

An opening / closing gate 19 that is opened and closed by a cylinder 18 is provided at a lower portion of the powder and granule surge tank 14, and cement, which is a powder or granule, is admitted to, for example, a fresh concrete manufacturing plant (not shown) adjacent to the silo 1. A supply chute 20 for supplying is provided.

Reference numeral 21 denotes a weighing controller arranged in the housing 2, which calculates the weight of the powder or granular material in the high pressure tank 5 from the weight signal detected by the weight detector 6 attached to the high pressure tank 5, The receiving gate 8 is closed when the weight of the granular material reaches the set value.

Therefore, for example, when the cement is supplied from the mobile silo 1 storing the cement to the adjacent raw concrete manufacturing plant, first, the amount of cement to be used for one batch is set in the measurement control device 21. . Then, when the cement metering start switch of the metering control device 21 is operated, or when the cement metering signal is received from the ready-mixed concrete manufacturing plant, the metering control device 21 marks the receiving gate 8 of the high-pressure tank 5 with an opening signal, and powder particles The cement is discharged from the body storage bottle 3 to the high pressure tank 5. Then, the weight detection signal from the weight detector 6 supporting the high-pressure tank 5 is read, and when the value obtained by subtracting the drop difference from the set measurement value is reached, the acceptance gate 8 is closed and acceptance of the cement is stopped.

Next, high-pressure air is sent from the compressor 10 to the bottom of the high-pressure tank 5 via the high-pressure air supply pipe 11, and the cement in the high-pressure tank 5 is compressed by the high-pressure air via the pressure-feed pipe 13 to the powder / sag surge tank 14 Pump to. In the particle surge tank 14, the cement content is separated by the cyclone principle, and only the high-pressure air is led to the particle storage bin 3 via the ventilation pipe 16 and passed through the bag filter 17 to be discharged to the outside. .

When the cement pressure feed to the granular material surge tank 14 is completed in this way, the cement is supplied to the adjacent fresh concrete manufacturing plant via the supply chute 20 by opening the opening / closing gate 19 at the lower part of the granular material surge tank 14. is there.

In the above embodiment, the case where the housing 2 is cylindrical and has no opening has been described. However, even if the lower housing part of the granular material storage bottle 3 is opened, the present invention is not limited to this. Various housings can be adopted without departing from the gist.

[0019]

[Effect of device]

 As described above, according to the present invention, the granular material storage bottle for storing the granular material, the high pressure tank supported by the weight detector for receiving the granular material discharged from the granular material storage bottle, Compressor that sends high-pressure air to the high-pressure air supply pipe that communicates with the high-pressure tank, pressure pipe that communicates with the high-pressure tank and discharges the internal granular material to the outside of the tank, and the weight detector attached to the high-pressure tank Since a mobile silo is configured by housing a weighing control device that detects the weight value of the powder and granules and measures a predetermined amount in a housing, it is a device for measuring and transferring powder and granules such as cement. This simplifies maintenance, reduces mechanical elements, and facilitates maintenance management.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of the present invention.

2 is a partially cutaway side view of FIG. 1. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Movable silo 2 ... Housing 3 ... Powder storage bin 5 ... High pressure tank 6 ... Weight detector 10 ... Compressor 11 ... High pressure air supply pipe 13 ... Pressure feeding pipe 21 ... Metering control device

Claims (1)

[Scope of utility model registration request] 1. A granular material storage bottle for storing the granular material, a high pressure tank supported by a weight detector for receiving the granular material discharged from the granular material storage bottle, and a high pressure communicating with the high pressure tank. A compressor that sends high-pressure air to the air supply pipe, a pressure feed pipe that communicates with the high-pressure tank to lead the internal powder and granules out of the tank, and a weight detector attached to the high-pressure tank to determine the weight value of the powder and granular material in the tank. A movable silo for powder and granules, characterized in that a weighing control device for detecting a predetermined amount and weighing a predetermined amount is housed in an integrated housing.