JP7045075B2 - Ready-mixed concrete manufacturing facility - Google Patents

Description

The present invention relates to a ready-mixed concrete manufacturing facility.

A ready-mixed concrete manufacturing facility that manufactures ready-mixed concrete, with a dropping facility formed into a tubular shape that extends in the vertical direction so that dropped objects containing aggregates that form part of the ready-mixed concrete can be dropped and thrown in from above. The ready-mixed concrete manufacturing facility described in Patent Document 1 provided with a reinforcing member attached to the outer peripheral surface side of the dropping equipment to reinforce the peripheral wall of the dropping equipment is conventionally known.

By bolting the plate-shaped reinforcing member to the outer peripheral surface of the dropping equipment, the dropping equipment can be reinforced, and a part of the fixing bolts fixing the reinforcing member is exposed inside the dropping equipment. By allowing the fixing bolt to function as a cushioning member that collides with the aggregate.

Japanese Unexamined Patent Publication No. 2005-199573

In the above document, the main body portion is reinforced by a reinforcing member provided on the outer peripheral surface side of the dropping equipment, and the fixing bolt used for fixing the reinforcing member is passed through the inner peripheral surface side of the main body portion to provide the fixing bolt. Although it functions as a cushioning member, if the fixing bolts are to be placed over a wide area, the number of parts will increase, which will increase the cost and labor of installation, and it will be difficult for the wall surface side of the dropping equipment to function as a cushioning member. There was a problem.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to inexpensively and easily provide a member for reinforcing a tubular dropping equipment into which concrete material is thrown from above and a member for suppressing wear of the dropping equipment due to the concrete material to be thrown in. The challenge is to provide ready-mixed concrete manufacturing facilities.

In order to solve the above problems, first, in a ready-mixed concrete manufacturing facility that manufactures ready-mixed concrete, in the vertical direction so that dropped objects containing aggregates that form part of the ready-mixed concrete are dropped and thrown in from above. It is provided with a dropping facility formed in a tubular shape extending into a cylinder and a reinforcing member attached to the inner peripheral surface side of the dropping facility to reinforce the peripheral wall of the dropping facility, and the reinforcing member has an L-shaped cross section. One of the two pieces formed into the shape and forming the L-shaped cross section of the reinforcing member becomes the attached portion to be attached to the inner peripheral surface side of the dropping equipment, and the other protrudes and falls inside the dropping equipment. It becomes a receiving part for receiving the dropped object, and a plurality of the reinforcing members are arranged side by side along the circumferential direction of the dropped equipment to form a reinforcing unit, and the reinforcing unit is along the axial direction of the dropped equipment. The lower reinforcing member is formed so as to have a larger amount of protrusion inward of the receiving portion as compared with the upper reinforcing member .

Secondly, the reinforcing unit is characterized in that it is composed of a plurality of the reinforcing members arranged in a ring shape over the entire circumference of the inner peripheral surface of the dropping equipment in a plan view.

Thirdly , the dropping equipment was formed into a polygonal shape in a plan view, and the reinforcing member was formed in an angle shape along a flat surface forming a part of the inner peripheral surface of the dropping equipment. It is a feature.

Fourth, a support member for supporting the reinforcing member is provided on the inner peripheral surface side of the dropping equipment.

Fifth, the support member is an angle-shaped plate-shaped member, and is characterized in that a mounting portion on which the reinforcing member is mounted is formed.

The reinforcing member having an L-shaped cross section is attached to the inner peripheral surface side of the dropping equipment, and a receiving portion protruding inward from the inner peripheral surface side of the dropping equipment is provided, so that the reinforcing member is the dropping equipment. Since the member that reinforces the strength of the material itself and the member that suppresses the wear of the dropping equipment by contacting with the free-falling concrete material and relaxing the momentum can be used at the same time, the cost can be suppressed to a lower level.

Further, according to a reinforcement unit in which a plurality of the reinforcing members are arranged side by side along the circumferential direction of the dropping equipment, the concrete material which is the dropped object thrown into the dropping equipment is placed on the receiving portion. By depositing so as to incline toward the center of the main body, the concrete material that falls near the wall surface of the dropping equipment is guided toward the center side, so that wear on the wall surface side of the dropping equipment can be prevented more efficiently. can.

Further, according to the reinforcement unit composed of a plurality of the reinforcing members arranged in a ring shape over the entire circumference of the inner peripheral surface of the dropping equipment in a plan view, the reinforcing unit is on the inner peripheral surface side of the dropping equipment. Overall wear can be suppressed.

Further, according to a plurality of the reinforcing units arranged side by side along the axial direction of the dropping equipment, the entire dropping equipment can be reinforced with a simple configuration, and the concrete material falling in the dropping equipment is staged. Can be buffered.

Further, according to the lower reinforcing member formed so that the amount of protrusion to the inside of the receiving portion is larger than that of the upper reinforcing member, the concrete material is easily dropped. On the lower side of the equipment, the concrete material and the receiving portion are easily in contact with each other, and the wear of the dropping equipment can be suppressed more efficiently.

Further, the dropping equipment is formed into a polygonal shape in a plan view, and the reinforcing member is formed in an angle shape along a flat surface forming a part of the inner peripheral surface of the dropping equipment. , The reinforcing member can be easily and inexpensively attached to various shapes of dropping equipment.

According to the one provided with the support member for supporting the reinforcing member on the inner peripheral surface side of the dropping equipment, the reinforcing member can be supported at the mounting position on the inner peripheral surface side of the dropping equipment. The mounting and fixing work of the reinforcing member can be performed smoothly.

It is a schematic diagram of the ready-mixed concrete manufacturing plant to which this invention was applied. It is a schematic diagram which showed the internal structure of a plant. (A) and (B) are a side sectional view and a plan view of the storage body, and (C) is a plan view of the storage body of another embodiment. It is a cross-sectional view on the main part side which showed the use state of a cushioning part.

Hereinafter, embodiments of the present invention will be described with reference to the illustrated examples. FIG. 1 is a schematic view of a ready-mixed concrete manufacturing facility to which the present invention is applied, and FIG. 2 is a schematic view showing an internal structure of a plant. The illustrated ready-mixed concrete manufacturing facility includes a plant 1 in which concrete materials are input to manufacture ready-mixed concrete, a supply device 2 for supplying concrete materials to the plant side, and a material storage 3 for storing aggregates which are concrete materials. And an operation room 4 having a control unit.

The aggregate storage 3 stores aggregates, which are materials for ready-mixed concrete, by dividing them into different types and particle sizes (fine aggregates and coarse aggregates) and dividing them into a plurality of containers. The accommodating bodies include a sand accommodating body 3A in which sand and the like which are fine aggregates are accommodated, a gravel accommodating body 3B in which gravel, crushed stone (gravel) and the like which are coarse aggregates are accommodated, and a crushed stone accommodating body 3C. , There is a special aggregate accommodating body 3D or the like in which other special aggregates and the like are accommodated.

The supply device 2 extends from the vicinity of the aggregate storage 3 so as to be inclined upward toward the upper side of the plant 1, and conveys the aggregate to the upper part of the plant 1 and the plant. It has a cement supply device 2B that supplies cement to one side, and a water supply device 2C that supplies water such as groundwater and an admixture to the plant 1 side.

The transport conveyor 2A is provided with a detection device (not shown) for measuring the water content of various aggregates transported from the aggregate storage 3. Further, the transport conveyor 2A is configured so that the control unit can control the type, amount, and water content of the aggregate to be charged to the plant 1 side.

The plant 1 is arranged at the upper end side and is arranged at the reception unit 11 where the aggregate conveyed by the transfer conveyor 2A is charged, and is arranged directly below the reception unit 11 and the concrete material is dropped from the upper side. A storage unit (dropping facility) 12, a measuring unit 13 that is arranged directly below the storage unit 12 and measures concrete materials (aggregate, cement) used for producing ready-mixed concrete, and a measuring unit 13 directly below the measuring unit 13. It is provided with a kneading unit 16 which is a mixer for kneading the concrete material which is arranged in the above and is charged through the collective hopper 14, and the amount of aggregate and the water content which are charged into the kneading unit 16 by the control unit. By controlling the amount and the amount of cement, etc., it is configured so that ready-mixed concrete of a predetermined quality can be stably produced (see FIGS. 1 and 2).

In the reception unit 11, the aggregate conveyed upward by the transfer conveyor 2A is thrown in, and the aggregate is guided to the storage unit 12 arranged directly below and dropped. At this time, the reception unit 11 has a discriminating means for discriminating the particle size, weight, and the like of the inserted aggregate, and classifies the aggregates (fine aggregates and coarse aggregates) transported by the transport conveyor 2A. While doing so, it can be dropped to the storage unit 12 side.

The storage unit 12 is a funnel-shaped tubular member whose vertical direction is open, and is configured by arranging a plurality of storage bodies (storage bottles) 12A and 12B for temporarily storing the concrete material side by side. Has been done. As the storage body, an aggregate storage body 12A in which the aggregate supplied by the transport conveyor 2A is stored and a cement storage body 12B in which the cement supplied by the cement supply device 2B is stored are provided. ..

Further, the aggregate storage bodies 12A are arranged side by side (two in the illustrated example) so that the storage destinations are distributed according to the type of aggregate determined by the reception unit 11. As a result, each aggregate storage body 12A has an aggregate storage body 12A in which fine aggregate such as sand is stored by distributing the aggregate input by the reception unit 11, and a coarse aggregate such as crushed stone. Can be divided into the aggregate storage body 12A in which the material is stored.

The storage body 12 is not limited to the above shape as long as it can temporarily store concrete materials such as aggregates and cement, and may be columnar or prismatic.

Incidentally, in the storage bodies 12A and 12B, each time sand, gravel, gravel, or cement, which is a concrete material, is poured from the upper opening side, the concrete material collides with the inner peripheral surface side of the storage body 12. Since the wall surface and the like of the storage body are worn by repeating the above steps, each storage body 12 is provided with a reinforcing member 10. The specific configuration of the storage body 12 and the reinforcing member 10 will be described later.

The measuring unit 13 is a tubular member whose vertical direction is open, and is supplied to the measuring bodies 13A and 13B from the storage unit 12 and a plurality of measuring bodies 13A and 13B provided corresponding to each storage body 12. It has a detection sensor (not shown) that detects the type and amount of aggregate to be made, and a discharge mechanism (not shown) that discharges the measured concrete material by opening and closing the bottom plate of the measuring body 13. It is configured so that a predetermined amount of the concrete material (aggregate, cement) used for producing concrete can be supplied to the kneading section 16.

A plurality of the measuring units 13 are provided so as to correspond to the plurality of the storage bodies 12, and specifically, the aggregate measuring body 13A for measuring the aggregate charged from the aggregate storage body 12A. It has a cement measuring body 13B for measuring the cement charged from the cement storage body 12B (see FIG. 2).

Thereby, the measuring unit 12 can control the type and amount of the concrete material (aggregate, cement) charged from the storage unit 12 into the kneading unit 16 via the control unit.

The kneading section 16 is provided with each concrete material via the collective hopper 14 provided on the upper side thereof, specifically, various aggregates supplied from the measuring section 13, cement, and the water supply device 2C. By mixing the water supplied from the water and the admixture, ready-mixed concrete can be produced.

The ready-mixed concrete produced by the kneading section 16 is a rotary type of a mixer truck (ready-mixed concrete truck) 19 stopped directly below the kneading section 16 via a discharge hopper 17 on the lower side of the kneading section 16. Can be put into the container of. The ready-mixed concrete produced by the plant 1 can be transported to each site by the mixer truck 19.

The plant 1 configured as described above is charged by the control unit through the amount of various concrete materials charged into the kneading unit 16, specifically, the storage unit 12 and the measuring unit 13. Since it is possible to control the water content of the aggregate (coarse aggregate, fine aggregate) and cement, the groundwater supplied via the water supply unit 2C, and the amount (ratio) of the admixture, the operator can be controlled. It is possible to stably produce high-quality ready-mixed concrete regardless of the skill and weather.

Hereinafter, a specific configuration of the storage body will be described with reference to FIGS. 3 and 4. 3A and 3B are a side sectional view and a plan view of the storage body, FIG. 3C is a plan view of the storage body of another embodiment, and FIG. 4 is a cushioning portion. It is a cross-sectional view on the main part side showing the usage state, and the enlarged view of the main part.

In the storage bodies 12A and 12B, an opening into which the concrete material is input from the reception portion 11 is formed on the upper side, and the concrete material stored on the lower end side is supplied (dropped) to the measuring unit 13. It is composed of a main body portion 21 formed in a tubular shape provided with a discharge mechanism (not shown) and the reinforcing member 22 for reinforcing the main body portion 21.

The reinforcing member 22 is an angle-shaped plate-shaped member, and extends along the inner peripheral surface side of the main body portion 21. Specifically, the reinforcing member 22 projects substantially horizontally from the attached portion 22a facing the inner peripheral surface side of the main body portion 21 and the lower end side of the attached portion 22a toward the inside of the main body portion 21. It is formed in an L-shape in cross-sectional view by the cushioning portion (receiving portion) 22b.

The reinforcing member 22 is extended in the left-right direction and is provided over the entire inner peripheral surface side of the main body portion 21 so as to be provided in a frame shape in a plan view to form a reinforcing unit. Further, a plurality of reinforcing units (reinforcing members 22) arranged in the frame shape are arranged side by side in the vertical direction (see FIG. 3).

Specifically, when the main body portion 21 of the reinforcing member 22 is prismatic, a plate-shaped member in the left-right direction is attached and fixed along each side (see FIG. 3B), and the main body portion 21 is attached. When is columnar, it is composed of an arcuate member along the outer peripheral surface of the main body 21 (see FIG. 3C).

According to the configuration, the reinforcing member 22 is attached and fixed along the inner peripheral surface side of the tubular main body portion 21, so that a large amount of concrete material (aggregate, cement, etc.) is charged. The main body 21 to which an external force is applied can be reinforced. Therefore, it is not necessary to form the main body portion 21 thicker than necessary, so that the cost can be kept low.

Further, as shown in FIG. 4, the reinforcing member 22 is a concrete material (particularly, an aggregate or the like) that is thrown from above into the cushioning portion 22b protruding from the inner peripheral surface side of the main body portion 21 and falls. The collision of the hard solid material) can prevent the concrete material from vigorously colliding with the inner peripheral surface side of the main body portion 21.

At this time, the concrete material introduced from the opening of the main body 21 is deposited on the buffer 22b to form a guide that inclines downward from the inner peripheral surface side of the main body 21 inward. (See Fig. 4). As a result, the concrete material that is thrown into the storage body 12 and falls on the wall surface side of the main body portion can be guided to the center side inside the main body portion 21, so that the wear of the main body portion 21 can be efficiently reduced with a simple configuration. It can be suppressed.

As described above, the reinforcing member 22 also serves as a reinforcing member that reinforces the storage body (main body portion) 12 itself and a cushioning member that relaxes the momentum of the aggregate that is thrown in from the upper part of the storage body 12 and freely falls. Therefore, the cost can be kept lower.

Further, the reinforcing member 22 is positioned and fixed by an inverted L-shaped fixing member 23 attached and fixed to the inner peripheral surface side of the main body portion (see FIG. 3A). The fixing member 23 includes a mounting portion 23a facing the inner peripheral surface side of the main body portion 21 and the reinforcing member 22 (reinforcing member 22) by extending the fixing member 23 from the inner peripheral surface side of the main body portion 21 in a substantially horizontal direction. A mounting portion 23b on which the cushioning portion 22b) of the above is placed is formed.

According to the configuration, since the reinforcing member 22 can be fixed on the inner peripheral surface side of the main body portion 21 in a state of being mounted on the mounting portion 23b of the fixing member 23, the reinforcing member 22 can be fixed. Positioning / fixing work on the inner peripheral surface side of the main body of 22 can be performed more smoothly.

The cushioning portion of the reinforcing member may be configured so that the amount of protrusion in the horizontal direction is larger as the cushioning portion is arranged on the lower side of the main body portion (not shown).

According to the configuration, among the main body portion 21 which is long in the vertical direction, the lower side of the main body portion to which a stronger external force (load) is applied by storing the aggregate can be more strongly reinforced and the opening can be made. It becomes easier to come into contact with the aggregate thrown in from the portion (upper end) side, and the function as a cushioning member can be exhibited more efficiently.

Incidentally, in the illustrated example, the above-mentioned reinforcing member 22 is provided in the storage body 12 constituting the plant 1, but may be a vertical tubular member into which the aggregate, which is the concrete material, is charged. However, it may be provided in a transport device that transports the aggregates (fine aggregates, coarse aggregates) in the vertical direction while mixing them.

2B Cement supply device (supply device)
2C Moisture supply device (supply device)
11 Conveyor device 13 Weighing unit (weighing device)
16 Kneading section (kneading device)
21 Main body 22 Reinforcing member 22a Mounting part 22b Cushioning part 23 Fixing member

Claims (5)

It is a ready-mixed concrete manufacturing facility that manufactures ready-mixed concrete.
Dropping equipment that is formed into a cylindrical shape that extends in the vertical direction so that dropped objects containing aggregates that form part of ready-mixed concrete can be dropped and thrown in from above.
It is provided with a reinforcing member attached to the inner peripheral surface side of the dropping equipment to reinforce the peripheral wall of the dropping equipment.
The reinforcing member is formed into a shape having an L-shaped cross section.
One of the two pieces forming the L-shaped cross section of the reinforcing member becomes the attached portion to be attached to the inner peripheral surface side of the dropping equipment, and the other is the dropping that protrudes and falls inside the dropping equipment. Become a receiving part to receive things,
A plurality of the reinforcing members are arranged side by side along the circumferential direction of the dropping equipment to form a reinforcing unit.
A plurality of the reinforcing units are arranged side by side along the axial direction of the dropping equipment.
The lower reinforcing member was molded so that the amount of protrusion of the receiving portion inward was larger than that of the upper reinforcing member.
Ready-mixed concrete manufacturing facility. The ready-mixed concrete manufacturing facility according to claim 1 , wherein the reinforcing unit is composed of a plurality of the reinforcing members arranged in a ring shape over the entire circumference of the inner peripheral surface of the dropping equipment in a plan view. The dropping equipment is molded into a polygonal shape in a plan view.
The ready-mixed concrete manufacturing facility according to claim 1 or 2 , wherein the reinforcing member is formed in an angle shape along a flat surface forming a part of the inner peripheral surface of the dropping equipment. The ready-mixed concrete manufacturing facility according to any one of claims 1 to 3 , wherein a support member for supporting the reinforcing member is provided on the inner peripheral surface side of the dropping facility. The ready-mixed concrete manufacturing facility according to claim 4 , wherein the support member is an angle-shaped plate-shaped member, and a mounting portion on which the reinforcing member is mounted is formed.

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