JPH0431286A - Bridge-free hopper and preventing method of bridge in hopper - Google Patents

Abstract

PURPOSE:To discharge the content from a hopper by self-weight of the content when a gate is opened, by arranging strings or nets inside the hopper. CONSTITUTION:Wires 20 are hung down and stretched from a H-shaped steel beam 11 so that the wires 20 have no slack part but are not pulled too tight when no content is in a hopper 1, and slacked off a little by an amount equivalent to the displacement of a gate 9 when the gate 9 is opened. The content may agglomerate in the hopper 1, however, it clashes against the wires 20 and breaks into pieces while it falls down as the gate 9 is opened. Thus, the agglomerating content in the hopper 1 can be broken and crushed into pieces by using the self-weight of the content without any power. If the wires 20 are almost vertically stretched from the top to the bottom of the hopper 1, the content is heaped up in layers in the hopper 1 and the lower layer clashes against the wires 20 due to the weight of the upper layers. And, the upper layers, on the other hand, are certainly broken and crushed because they fall down a long distance from above, clashing against the wires 20.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in hoppers. More specifically, the contents stacked inside the hopper (earth and sand, cement, polished rice flour, etc.)
The present invention relates to a device and method for crushing or pulverizing hopper during discharge to prevent clogging of a hopper.

] Conventional technology: - Conventionally, the contents stacked in a hopper are transferred to a truck or the like after the gate of the hopper is opened.

Problem to be solved: However, with two types of sand, if the gate is opened immediately after rapidly stacking it in the hopper, will it be possible to discharge it smoothly without clogging? If the gate is opened after this, the water in the sand will naturally fall or evaporate and dry up in the hopper. The earth and sand will then become agglomerated and will not fall easily even if the gate is opened.

In this situation, workers have to break up the clumped dirt by poking the hopper diagonally from below with a long rod or from above. This task is not always easy and can be dangerous.

Even with polished rice flour, etc., as long as the flour contains water, it will fall without any problem when the gate is opened, but if the water content decreases for some reason, it will clump and cause the same problem.

[Means for Solving the Problem] As a means for solving the problem, the jam prevention hopper of the present invention is adopted, and is characterized in that a string or a net is disposed inside the hopper so as to cut the contents. . The lower end of the string or net, which is hooked to the socket or one or more supports provided near the socket, is hooked to the outlet of the hopper or near the outlet, so that at least one of the strings or the net is attached in a substantially longitudinal direction. It may also be placed inside the hopper.

In addition, as a method of preventing the hopper from clogging, a method is adopted in which a string or a net is placed inside the hopper so as to cut the contents, so that when the gate is opened, the contents are forced by their own weight.

[Function] Place a string or net inside the hopper in advance,
The contents are charged into this hopper from above. The contents, which are introduced one after another and piled up in a swirling manner, become agglomerated while embracing the strings or nets interposed in the longitudinal direction. Clumping occurs when the lower layer is pressed against the upper layer and water is squeezed out. When the gate of the hopper is opened, the agglomerated contents fall all at once, colliding with the string or net that is stretched around the hopper. During this fall, the lump is pushed by its own weight or the weight of the upper layer and collides with the string or net, which acts like a blade and cuts it.

[Example] Hereinafter, an example (regarding a hopper for earth and sand) showing the hopper and method of the present invention will be described in detail with reference to the drawings.

Figure 1 shows an example of the present invention in which a string is attached to a conventional earth and sand hopper.
It is a front view showing an example. FIG. 2 is a side view of the same embodiment, and FIG. 3 is a plan view of the same embodiment. Figure 4 is a perspective view showing the state of the discharge port when the gate of the hopper of the same embodiment is opened, and Figure 5 is a support (hereinafter referred to as "H steel") installed on the upper edge of the hopper socket of the same embodiment 8 strings (hereinafter referred to as “
FIG. 2 is a perspective view showing a state in which a wire (hereinafter referred to as "wire") is suspended.

In FIGS. 1 to 5, 1 is a hopper for earth and sand having two discharge ports 5. 2 is the lowest part of the hopper 1, and a discharge port 5 is opened at the lower end.

One H steel 11 is installed at the upper edge of the socket 3 of the hopper 1 at a position passing through the mouth center point of the hopper I plane. Eight wires 20, . . . are suspended from appropriate locations on the H steel 11. In this first embodiment, one end 20a of each wire 20, . and passed around to the outside of gate 9,...
It is fixed at the appropriate location. These wires 20,
... is suspended from the H steel 11, and when the contents in the hopper L is empty, it is stretched without strain to the extent that there is no slack in each of the above points, and when the gate is opened, the gate 9 is opened, and the ... is opened. It is made to loosen slightly by that amount. 6 is a shaft, 7 is a piston, and gates 9, . . . are these pistons 7.
．． 7, it is pulled outward via the shafts 6, . . . and released.

Next, a front view showing a second embodiment in which two H steels (support rods) and four wires (strings) are hung from each H steel, for a total of eight wires, and FIG. 7 is the same embodiment. FIG.

In this second embodiment, as in the first embodiment, one end of the wire 20 is inserted into the periphery of the discharge port 5, and the other end is hung on the outside of the gate 9 by passing through the gap therebetween.

Figure 8 is a front view of the third embodiment in which four wires (strings) are hung around one H steel (support rod), each end of which is hung around the periphery of the discharge port, and Figure 9 is a front view of the third embodiment. It is a perspective view which shows the state of the discharge port when the gate of the example hopper is opened. In this third embodiment, the wire 20 is not hooked onto the gates 9, . . . and is fixed immovably.

FIG. 1O is a front view showing the fourth embodiment, and FIG. 11 is a plan view of the same embodiment. In this fourth embodiment, instead of a string, a net 20 has one side edge fixed to a latch fixed to the center portion 1a of the inner wall of the hopper 1, and a bottom edge positioned slightly above the discharge port 5.5 in the hopper 1. Lowermost part 2ai: each is latched onto the provided latches and stretched diagonally inside the hopper 1.

[Effect of the invention] Since the present invention has the above configuration, the ±
When the contents such as sand, polished rice grains, and cement fall when the gate is opened, they collide with the string or net and are broken down and crushed. In this way, the agglomerated contents within the hopper can be decomposed or pulverized using its own weight without requiring any power.

At this time, if the string or net runs almost vertically from the top to the bottom of the hopper, the lower layer of the contents stacked in the hopper will collide with the string or net under the gravity of the upper layer. On the other hand, the upper layer will fall while coming into contact with the string or net over a longer distance than the lower layer, so it will definitely disassemble.
Can be crushed.

Further, the hopper of the present invention can achieve its purpose by using a conventional hopper as is and adding a few extra devices to it. Therefore, manufacturing costs and modification costs are low. Furthermore, the arrangement method and location of the string or net can be easily changed, including omissions, so even if it wears out, it can be easily replaced.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment in which a string of the present invention is installed in a conventional hopper. 2nd or side view of the same embodiment, 3rd
This is a plan view of the same embodiment. Figure 4 is a perspective view showing the state of the discharge port when the gate of the hopper of the same embodiment is opened, and Figure 5 is a support rod (hereinafter referred to as "H steel") installed on the upper edge of the hopper socket of the same embodiment. This is a perspective view showing a state in which four strings (hereinafter referred to as "wires 1") are suspended from a wire (hereinafter referred to as "wire 1").Next, in the sixth section, there are two Hf1 (support rods) and two wires (strings) each. H
A front view showing a second embodiment in which a total of 8 wires (4 wires each) are made of steel;
The seventh fork is a plan view of the same embodiment. Figure 8 is a front view of the third embodiment in which four wires (strings) are hung around the H steel (support rod) IX, each end of which is hooked to the periphery of the discharge port, and Figure 9 is the same embodiment. FIG. 3 is a perspective view showing the state of the discharge port when the gate of the hopper is opened. FIG. 1O is a front view showing the fourth embodiment, and FIG. 11 is a plan view of the same embodiment.・Hopper・Bottom part・Socket・Discharge port・Piston・Gate・Support body (H steel) ・String (wire) or net patent l: Iganjin Co., Ltd. Tokyo Kyoei Shokai

Claims (3)

[Claims] (1) A jam-preventing hopper with a string or net placed inside the hopper to cut the contents. (2) At least one string or net is attached to the outlet of the hopper or the lower end of the net is hooked to one or more supports provided at or near the outlet of the hopper. A hopper that prevents jamming and is installed almost vertically inside the hopper. (3) A method for preventing a hopper from clogging in which the content is cut by its own weight when the hopper gate is opened by arranging a string or a net inside the hopper so as to cut the content.