JPS5925778Y2 - Pneumatic transportation device for municipal waste - Google Patents

Description

[Detailed description of the invention] This invention enables efficient vertical pneumatic transport of municipal waste, requires less space in the vertical pneumatic transport section, and transports waste in underground stations and underground malls that have a long vertical transport section. The present invention relates to a pneumatic transportation device for municipal waste that is most suitable for use in urban areas, has a simple mechanism, and is easy to assemble.

The vacuum suction pipeline method has been attracting attention as a rational method for collecting and transporting municipal waste, and is being put into practical use in some foreign countries, and various studies are being conducted for its practical use in Japan as well.

A vacuum collection and transportation method as shown in FIG. 1 has been implemented to pneumatically transport and collect garbage in underground stations and underground malls that have a long horizontal transportation section.

That is, the lower end of the dust shoe b, which has a plurality of municipal waste intake ports a and is equipped with a discharge valve C at the lower end, is connected to a horizontal transport branch pipe d, and an air intake is connected to one end of the transport branch pipe d. The main transport pipe is connected to the horizontal main transport pipe f, and the main transport pipe is raised spirally to the gravity separator g, which has a separator set of bag filters on the upper part. The rising ends of tube f are connected.

The lower end of the gravity separator g is connected to the upper end of a discharge cylinder i having switching valves j and k at both upper and lower ends, and a transport device such as a belt conveyor is connected to the lower end of the discharge cylinder i. 1 is arranged so that the transporter l can transport the municipal waste from the discharge cylinder i to a required location, and an air pipe with a valve n is connected at one end to the bag filter set separator. The other end of m is connected to the exhaust cylinder body O via a deodorizing device p.

Further, three air exhaust sources q such as Roots blowers having switching valves r and S on the intake side and the discharge side are installed in parallel between the valve n installation part of the air pipe m and the deodorizing device p, Moreover, a silencer and a silencer U are incorporated in the air pipes m on the intake side and the discharge side of each air exhaust source q.

In the municipal waste vacuum collection and transportation device having the above-described configuration, the air in the transportation branch pipe d and the main transportation pipe f is discharged into the atmosphere by the air exhaust source q, and the air in each intake port a is
The municipal waste thrown into the dust chute b is transferred to the transport pipe d by the appropriate opening and closing operation of the charge valve C.
The municipal waste is transported through the spiral part of the main transport pipe f to the gravity separator g above by the air sucked into the transport pipe d from the air intake valve e, where it is separated from the municipal waste. It uses a method that separates it from air.

However, such vacuum collection and transportation equipment for municipal waste uses a spiral tube method to transport underground municipal waste to the surface, which requires a large amount of space and has problems such as difficulty in setting the angle of inclination and curvature. It is also conceivable to adopt an inclined pipe system instead of the spiral pipe system, but this similarly poses problems in terms of occupied space and inclination angle.

It is also possible to use a vertical transport pipe to transport municipal waste from underground to above ground without adopting the spiral pipe method or inclined pipe method, but the wind speed must be higher than the inherent floating speed of various types of waste transported. , if this wind speed is Vv, and the pipe wind speed of a system consisting of a normal horizontal-spiral pipe (or inclined pipe) is vh, then Vv>Vh.

The total pipe pressure drop ΔP is generally expressed as ΔP=f(V2), and therefore the pipe pressure drop ΔPh in a system consisting of horizontal-spiral pipes is expressed as ΔPh=f(V2h), and the pipe pressure drop ΔP in a vertical pipe system is expressed as ΔP=f(V2h). Pipe pressure loss ΔP■c,
ΔP■=f(v2■).

In addition, the air volume Q is generally expressed as Q,=-;D2V (where D indicates the pipe diameter).Therefore, the air volume Qh in a system consisting of horizontal and spiral pipes is expressed as Qh=-HD2Vh, and the vertical transport The air volume Qv in the pipe system is
It is expressed as Qv=-yD2Vv.

Furthermore, the power Kw of the blower is expressed as Kw=PQ-F(V3).

Therefore, if vV-1.5Vh, Kw=3.4
vh, which is 3.4 times greater.In a vertical transport pipe system, a large-capacity Roots blower, which is an air exhaust source, must be used, which is a problem.

Furthermore, in the method using the vertical transport pipe, the diameter of the vertical transport pipe is made smaller than the diameter of the horizontal transport pipe, and a storage and discharge device having a crushing mechanism is interposed between the horizontal transport pipe and the vertical transport pipe. However, the storage and discharge device must be designed according to the difference in diameter between the horizontal and vertical transport pipes, the type of municipal waste, etc., and it is difficult to manufacture.
Maintenance of the storage and discharge device is also difficult, and there are problems such as the need for space for the installation of the storage and discharge device.

The present invention relates to a pneumatic transportation device for municipal waste, which was created in view of the above-mentioned circumstances, and includes an air intake port with a valve on one end and a required number of municipal waste input mechanisms in the middle, and the other end of a horizontal transportation pipe. and a lower end of a vertical transport pipe which has the same diameter as the horizontal transport pipe and connects the upper end to the municipal waste collection station, and is equipped with an air volume adjustment valve at the point where the transport direction of municipal waste changes from horizontal to vertical. It is characterized by this.

Embodiments of the present invention will be described with reference to the drawings.

FIG. 2 shows a flow sheet of the pneumatic transportation device for municipal waste of the present invention, which includes a transport pipe I, a municipal waste collection station II, and a municipal waste discharge and storage device III. Consisting of

The transport pipe ■ transports municipal waste to the municipal waste discharge and storage device I.
It is a pipe for pneumatic transport from II to municipal waste collection station II, and has a horizontal transport pipe 1, a vertical transport pipe 2 having the same diameter as the horizontal transport pipe 1, and a curved pipe 3 connecting these transport pipes 1 and 2. In addition, an air volume adjustment valve 4 connected to the bent pipe 3 and an air intake port 5 with a valve 6 connected to one end of the horizontal transport pipe 1.
It has the following.

Furthermore, the municipal waste collection station II consists of a separation device that separates and discharges the municipal waste that has been transported with the air, and an exhaust device that provides the air volume and wind speed necessary for transporting the municipal waste. It has a separator 7 such as a cyclone, a municipal waste collection drum 8, a dust collector 9 such as a bag filter, an air exhaust source 10 such as a blower with a silencer, a deodorizing device 11, and an exhaust pipe 12.

Further, the municipal waste discharge and storage device III is provided with a discharge valve 14 at the lower end and has a plurality of dust I chutes 13 connected to the horizontal transport pipe 1. Municipal waste intake port 1
5 is installed.

Furthermore, the upper end of the vertical transport pipe 2 of the transport pipe I is connected to the separator 7 of the municipal waste collection station II, and the air volume in the vertical transport pipe 2 can be adjusted by an air volume adjustment valve 4. ing.

In FIG. 2, 16□ to 16n are cut valves. The air exhaust source 10 of the municipal waste collection station II generates the air volume and wind pressure necessary to transport municipal waste, and opens the cut valve 16 to transport the municipal waste as shown in the line shown in the figure. Cut valve 16□~16
When the air exhaust source 10 is operated with the valve o closed, an air flow is generated through the valve 6 of the air intake port 5.

In addition, the municipal waste accumulated in the municipal waste storage section of the municipal waste post and dust chute 13 is discharged through the discharge valve 14.
When the waste is opened and closed appropriately, it falls into the horizontal transport pipe 1 by gravity and is carried by the airflow inside the horizontal transport pipe 1 to the municipal waste collection station I.
Transferred to I.

At this time, municipal waste must be transported at a speed of vh in the horizontal transport pipe 1, and at a speed of Vv in the vertical transport pipe 2, so the air volume (c) required to generate a wind speed equivalent to (Vvvh) is
p D2 (Vvvh)) is introduced by controlling the air volume adjustment valve 4.

Among the specific methods for adjusting the air volume using the air volume adjustment valve 4, the simplest method is to keep the opening degree of the air volume adjustment valve 4 constant in advance; Since the pipe resistance changes every moment depending on the distance, it is difficult to constantly introduce a predetermined amount of air.For this reason, the pressure or air amount of the blower is detected and the opening of the wind force regulating valve 4 is automatically adjusted based on this detection. Therefore, the transport speed of the vertical transport pipe 2 can be kept constant at all times.

The municipal waste introduced into the vertical transport pipe 2 reaches the separator 7 of the municipal waste collection station II and is separated from air in the separator 7, and the separated municipal waste is collected in the municipal waste collection drum 8, while The separated air is dedusted and deodorized, and then exhausted to the atmosphere through the exhaust pipe 12.

Furthermore, a detector for municipal waste may be installed at or near the joint between the horizontal transport pipe 1 and the bent pipe 3, and the air volume adjustment valve 4 may be operated by the detection signal from the detector. It is possible to improve efficiency and automate waste transportation.

Note that the present invention is not limited only to the above embodiments,
For example, it is optional to make the horizontal shrimp transport pipe 1 and the curved pipe 3 integral, or to make the vertical transport pipe 2 and the curved pipe 3 integral, and other changes may be made without departing from the gist of the proposal. Of course, it is also possible to add

As described above, according to the pneumatic transportation device for municipal waste of the present invention, n) the space required for vertical transportation is small;

(ii) It is possible to optimally adjust the horizontal transportation wind speed and the vertical transportation wind speed, so that efficient transportation can be achieved.

(111) Since horizontal transport pipes and vertical transport pipes of the same diameter are used, there is no blockage caused by municipal waste, which is advantageous in terms of maintenance.

GV) It is economical because it consumes less power.

V) The mechanism is simple and can be manufactured easily.

Demonstrates excellent effects such as

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a flow sheet of a conventional municipal waste transport device, and FIG. 2 is an explanatory diagram showing a flow sheet of a municipal waste transport device of the present invention. ■...Transport pipe, II...Municipal waste collection station, III...Municipal waste discharge and storage device, 1...Horizontal transport pipe, 2... ... Vertical transport pipe, 3 ... Bent pipe, 4 ... Air volume adjustment valve, 5 ... Air intake port, 6 ... Valve, 7 ... Separator, 10 ... Air exhaust source, 13 ... Dust chute, 14 ...
Discharge valve, 15...Municipal waste intake, 16□~16o...Cut valve.

Claims (1)

[Scope of utility model registration request] The other end of a horizontal transport pipe has an air intake with a valve on one end and the required number of municipal waste input mechanisms in the middle, and the vertical transport has the same diameter as the horizontal transport pipe and connects the upper end to a municipal waste collection station. A pneumatic transport device for municipal waste, characterized in that it is connected to the lower end of a pipe and is equipped with an air volume adjustment valve at a location where the transport direction of municipal waste changes from horizontal to vertical.