KR19980077546A - Waste Disposal Method and Device - Google Patents

Abstract

The invention is formed by discharging waste from the waste chute 1 of the vacuum waste collection system through the discharge valve 3 to the transfer pipe 4 and opening the discharge valve 3 according to a fixed or variable discharge cycle. A method for controlling the communication relationship between a waste chute and a conveying pipe. According to the invention, the presence of the waste accumulated in the upstream position from the discharge valve (3) is detected, the waste restriction valve (5) provided upstream from the position in response to detecting the presence of the waste accumulated in the position ) Is activated.

Description

Waste Disposal Method and Device

Vacuum waste collection systems have been in use for many years and are now known as effective, clean and convenient ways to solve waste disposal problems. However, when the chutes are placed in skyscrapers where the amount of garbage inserted into each chute in a short time is sometimes too high to be handled by the system, it is often problematic in applications such as those mentioned for the first time. Done. More specifically, between the discharge cycles of the individual chutes, rubbish poles gathered at the top of the discharge valve at the bottom of each chute are sometimes too high, which makes it dangerous to safely transport the rubbish through the valves to the delivery line.

In many cases, the above problem can be solved by shortening the spacing to or between the chute cycles so that the chute exits more often. However, if a number of similar waste chutes are connected to the system and must be discharged sequentially, the method described above is too long to ensure satisfactory operation even if the time between each individual chute discharge cycle is reduced to its minimum. Cannot solve the problem.

Applicant has proposed a solution to this problem in the previous US Patent No. 3 887 053. The waste chute device of a high-rise building disclosed in the patent required two separate waste chutes to be provided throughout the entire building. This solution not only increases the cost of the overall system, but also requires space to provide additional waste chutes.

Accordingly, it is a primary object of the present invention to provide a method, apparatus and a waste restriction valve as shown at the beginning of the present specification which can solve the above problems in a low cost manner without requiring any much space.

According to the invention, the above object can be achieved by a method, an apparatus and a waste restriction valve having the features described in claims 1, 5 and 8, respectively.

Preferred embodiments of the invention are described in the independent claims of the claims.

Hereinafter, the objects, features and advantages of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a front view showing, in one side of a lower part of a provided waste chute according to the invention, a waste restriction valve and its supporting frame,

2 is a view when viewing the garbage chute of FIG.

3 is a side view showing a state in which the waste restriction valve of FIGS. 1 and 2 is supported by a frame having a slightly different form, and

4 is a cross-sectional view of the waste restraint valve along the line A-A of FIG.

As only the lower part is shown in the figures to show part of a typical vacuum garbage collection system, the garbage chute 1 is installed in a building 2 such as a residential complex or a high-rise building in a business area. At the lower end of the waste chute 1 is provided an open and closeable waste discharge valve 3 (RVD), which is preferably arranged at the base of the building, which at the time of opening the chute 1 and the underground vacuum transfer pipe ( 4) to communicate with each other to discharge the waste collected on the valve to the transfer pipe, to completely shut off the lower end of the chute 1 when closed and to provide a gastight seal between the chute 1 and the transfer pipe (4) It ensures proper operation of the vacuum transfer tube 4 when the other chutes of the system are discharged.

The present invention is only schematically shown in the drawings and with the special design of any type of conventional waste discharge valve 3 used in this type of vacuum waste collection system as disclosed in the applicant's Japanese Patent Application No. 1640550. It is not related. For example, the type of vacuum / collection station and the like and other parts of the waste system, through which the conveying pipe is connected to which the waste is transferred to collect the waste in at least one container, are well known in the art and are thus described in detail herein. I never do that. See US Pat. No. 3,887,053, above, for a complete understanding of the entire vacuum waste collection system to which the present invention may be applied.

When part of a vacuum waste collection system comprising a plurality of said chutes 1 connected to a common transfer pipe 4 and a vacuum station (not shown) and / or installed in a tall building or within too short a time The above-mentioned problems can arise in the conventional waste chute 1 when the waste accumulates too high on the closed discharge valve 3 before the chute is emptied by the normal discharge cycle. The threshold level associated with the safe discharge of waste through the valve 3 into the delivery line 4 may vary depending on the design and geometrical dimensions of the valve 3 and / or the lower part of the chute 1. It is usually located about 2-3m on the discharge valve (3).

The solution proposed by the present invention in order to solve the above problem and to secure the waste conveyance through the discharge valve is to provide a waste restriction valve (at a suitable distance of about 2-3 m on the discharge valve 3, i.e. upstream side). 5) to provide (RLV). The waste restricting valve 5 is primarily intended to retain all waste above its level when operated in a closed state, rather than hermetic. This operation takes place before opening the waste discharge valve 3 (RDV) as described in detail below.

As noted above, in a preferred embodiment the RLV 5 comprises two cylindrical bars 6 which slidably extend through the wall 1a of the waste chute 1, preferably a passageway through the chute wall. Is sealed by a hermetic seal (not shown). The bar 6 can be reciprocated between a first position that is completely retracted inside the chute to allow free passage of rubbish, and a second position that extends over some or all widths of the chute to block the passage of rubbish. Can be. Outside the chute 1, the bar 6 is a suitable sliding bearing 7 in the frame 8 fixed to the support structure 9, which is firmly mounted to the wall 2a of the building 2 (see FIG. 4). It is slidably supported by.

The bar 6 is firmly connected to the connecting plate 19 at the rear end 6a and is kept parallel to one another, extending side by side. The cylinder bracket 10 is firmly connected by welding to one side 10a (shown in FIG. 4) of one of the sides of the frame 8 opposite the chute 1. The bar 6 passes freely through the corresponding holes in the side face 10a of the bracket 10 such that the connecting plate 19 and the side face stop for extension to the chute 1 of the bar 6. Acts as wealth The pneumatic cylinder 11 is mounted on the frame 10 and the free end of the piston rod 11a thereof is connected to the connecting plate 19 so as to extend or withdraw the piston rod 11a in its respective direction. The operation of the cylinder 11 of the bar 6 causes the bar 6 to reciprocate between positions for opening and closing each passage through the chute 1.

Protects the RLV 5 from the effects of rubbish falling onto the bar 6 in a fully or partially extended position, and may cause breakage of the connection between the bar 6, the connecting plate and the piston rod 11a. Vibration dampers 20, 21, 22 between the sliding bearing 7 and the frame 8 and between the rear end of the bracket 10 and the damper support 23 so as to eliminate the risk of impacts resulting from the bending forces that are present. This is provided. The damper support 23 is fixed to the support structure 9 at its front end with respect to the extending direction of the piston rod 11a and supports the bracket 10 through the damper 22 at its opposite end. In the dampers 20, 21, the bars are actually supported floatingly in the frame 8, so that on the one hand between the bar 6 and the bearing 7 and on the other hand the bar 6. ) And frame 8 only. Although not specifically shown in the figures, the holes in the side wall 10a of the bracket 10 are of a numerical value allowing the floating state of the bar 6 to pass through them.

Two different embodiments of the support structure 9 are shown in FIGS. 1, 2 and 3, 4. In Figures 1 and 2, the support structure is adapted to the inclined chute portion extending through a special wall structure, thus vertical support struts 9a supporting the chute 1 on both sides and attached to the wall 2a. Has In the embodiment shown in FIGS. 3 and 4, the support structure 9 is adapted to the vertical chute 1 arranged at a distance away from the wall 2a and thus does not require vertical struts, but instead is inclined. The struts 9c have additional horizontal struts 9b, all of which support the chute 1 and are attached to the wall 2a behind the chute.

At a position immediately below the RLV 5, ie downstream, a level sensor 12 schematically shown is arranged next to or on the chute wall 1a depending on the type of sensor used. The sensor consists of a spring-biased finger extending into the chute 1 passage and can be a limit switch of the type that responds to the displacement from the default position only if the displacement persists, ie the switch can cause waste to fall into the switch. It only works if garbage accumulates above the level without reacting to a temporary displacement at that time. Any other conventional type of sensor that can continually detect the presence of rubbish can be used as long as it does not interfere with the rubbish and without the risk of being damaged by the rubbish passing therethrough.

The level sensor 12 is connected to a control box 13 schematically shown in the figures via a connecting portion 12a. The special parts included in the control box for obtaining the functions described below are not described in detail herein because they are not part of the present invention but can be freely selected according to the control technology adopted. In addition, the control box 13 receives a signal from the control system of the vacuum waste collection system via the connecting portion 14 and starts to open the RDV according to the automatic discharge cycle of the system and for the state of the level sensor, that is, the chute A signal is sent to the control system about the level of garbage accumulated in (1).

The control box 13 is also connected to the pneumatic cylinder 11 via a connection 15 to actuate the cylinder through an appropriate valve 16 in response to a signal from the control box 13 and to position the cylinder 11. That is, a signal indicating whether the RLV 5 is in a position for closing or opening.

Hereinafter, a method according to the present invention will be described. The RLV discharges all chutes of the system mainly by the complete discharge cycle of the entire vacuum system, i.e. by a fixed sequence determined by the position of the chutes of the system on the one hand and on the other hand the amount of waste accumulated in each chute 1 Note that it may be operated in different ways depending on the mode of operation selected to discharge the chutes by the variable cycle determined by it.

In any case, the state of the level sensor is checked substantially before opening the RDV when a signal that starts to open the RDV is received by the control box. When the level sensor is not operating, the RDV is opened immediately, but when the level sensor is actually operated by the accumulation of rubbish up to its level, the RLV is operated in the closed position before opening the RDV. Thus, only the waste accumulated under the RLV is passed through the RDV to the transfer pipe without any interference. Then, when the RDV is closed and the RLV is opened once more, the rubbish on top of the RLV falls by gravity and accumulates on the closed RDV. If the level sensor remains in operation, the procedure is repeated immediately or by the next fixed discharge cycle, depending on the type of cycle used for the entire system, as described above, until the chute is empty.

In order not to overload the RLV, it is operated in its closed position only during the time the RDV is open, thereby pressurizing the chute pillar and retaining all the waste above it, but the level sensor is activated so that the RDV is discharged The RLV can be operated in its closed position as soon as it remains in the closed position until it is open and closed at. The bars of the RLV do not support the full weight of the rubbish on the valve by pressurizing the rubbish against the opposing chute by their free end, whereas in the latter case it is as described above, thus providing a strong bending force. The former case is preferable because it is received.

Although the present invention has been described with reference to certain preferred embodiments, it should be understood by those skilled in the art that modifications and variations can be made without departing from the scope of the invention as determined by the appended claims.

The present invention relates to a large amount of waste disposal systems, such as vacuum waste collection systems, mainly residential areas, business buildings, hospitals, etc. More specifically, to control waste discharge from the waste chute to the transfer pipe of such systems And the method, apparatus and waste restriction valve described in claim 8.

Claims (10)

A waste chute formed by discharging waste from the waste chute 1 of the vacuum waste collection system to the transfer pipe 4 through the discharge valve 3 and opening the discharge valve 3 according to a fixed or variable discharge cycle; A method for controlling a communication relationship between transfer pipes, the method comprising: detecting the presence of rubbish accumulated at an upstream position from the discharge valve (3), and detecting the presence of rubbish accumulated at the position from the position; A waste discharge control method, characterized in that the waste restriction valve (5) provided on the upstream side is operated. The waste discharge valve (5) according to claim 1, wherein the waste restriction valve (5) is provided with a signal indicating that waste exists in the position and a signal for operating the waste discharge valve in accordance with the fixed or variable discharge cycle at the same time. Waste discharge control method characterized in that the operation before the operation of 3). 2. The waste restraint valve (5) according to claim 1, wherein the waste restraint valve (5) is operated in its closed position when a signal indicating that waste is present in the position is provided and in response to the operation of the waste restraint valve (3), And actuated as soon as permitted by the state of said vacuum waste collection system. 4. A method for controlling waste discharge according to any one of claims 1 to 3, characterized in that the detection position of the waste present is located about 2-3m upstream from the waste discharge valve (3). A waste chute device 1 of a vacuum waste collection system, connected to a transfer tube 4 connected to a vacuum / collection station and in communication with the transfer tube via a discharge valve 3, upstream of the discharge valve 3. A waste restraint valve 5 is provided in the chute at a distance and the waste restraint valve is provided to provide a closing start signal of the waste restraint valve 5 when the waste collected upstream of the outlet valve 4 reaches its level. The level chute 12 is disposed downstream of the waste chute device. 6. Garbage chute according to claim 5, characterized in that the waste restriction valve (5) and the level sensor (12) are provided at a distance of about 2-3 meters above the discharge valve (3). 7. The chute according to claim 5 or 6, wherein the chute is installed in the building (2), and the waste restriction valve (5) is attached to a support structure (9) attached to the wall (2a) of the building (2) and the waste A restrictor valve is provided in which the chute chute is provided on bars (6) which can extend into the chute to partially block the passage through the valve. In a waste restraint valve 5 selectively blocking a passage of a waste chute 1 of a waste vacuum collection system, the waste restraint valve 5 may extend into the chute to partially block a passage through the valve. It is provided that bars 6, drive means 11 for actuating the bars between extended and withdrawn positions and a support structure 9 for supporting the valve 5 at the position of the valve relative to the chute are provided. Featuring a waste restriction valve. 9. A waste restriction valve according to claim 8, characterized in that the bars (6) and the drive means are floated on the support structure (9) by vibration dampers (20, 21, 22). 10. The bar (6) according to claim 8 or 9, wherein the bars (6) are slidable in sliding bearings (7) supported by a frame (8) attached to the support structure (9), and one end of the bars ( 6a) is connected to a common connecting plate (19) connected to the drive means (11).