Waste material collection vehicle

Abstract

To provide a waste material collection vehicle which enables reduction of a cubic volume of a waste material.SOLUTION: A waste material collection vehicle has: liquid nitrogen supply means which supplies liquid nitrogen to a waste material; crushing means which crushes the waste material cooled by the liquid nitrogen; and a storage unit which stores the waste material crushed by the crushing means.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a waste collection vehicle. [Background technology]

[0002] BACKGROUND ART A waste treatment system that cools and pulverizes waste is known (for example, Patent Document 1).

[0003] Waste collection vehicles collect garbage and other waste placed at garbage collection sites (garbage dumps, etc.), and when a certain amount of waste accumulates, they go to a disposal site (incinerator, etc.) to dispose of the garbage. However, because waste is often bulky relative to its weight, even a small amount of waste can fill up a waste collection vehicle, and it has to make a round trip between the garbage collection site and the incinerator, etc., each time. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3366695 Summary of the Invention [Problem to be solved by the invention]

[0005] The present application aims to provide a waste collection vehicle that can reduce the volume of waste and / or increase the amount of waste that can be loaded. [Means for solving the problem]

[0006] In this application, a liquid nitrogen supply means for supplying liquid nitrogen to the waste; a crushing means for crushing the waste material cooled with liquid nitrogen; A waste collection vehicle is disclosed that has a storage section that stores waste that has been crushed by the crushing means. [Brief explanation of the drawings]

[0007] [Figure 1] 1 shows a waste collection vehicle 1 according to a first embodiment of the present invention. [Figure 2] 1 shows a waste collection vehicle 1A according to a second embodiment of the present invention. [Figure 3] An enlarged view of the cover 40 is shown. [Figure 4] 1 shows a waste collection vehicle 1B according to a third embodiment of the present invention. [Figure 5] This shows the cabin of the waste collection vehicle 1B tilted. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1 shows a waste collection vehicle 1 according to a first embodiment of the present invention. As shown in FIG. 1, the waste collection vehicle 1 has an input section 10, a processing section 20, and a storage section 30.

[0009] The input section 10 is a section into which various types of waste 2 are input. The waste 2 can be in various forms such as garbage bags, books, scrap wood, plastic, etc. The waste 2 can be input into the input section 10 by a person (cleaner) or the like.

[0010] The processing unit 20 is located inside the cabin of the waste collection vehicle 1. The waste 2 input into the input unit 10 can be moved to the processing unit 20 by any means such as a conveyor, roller, or screw. The processing unit 20 can have a liquid nitrogen supply means 21 that sprays liquid nitrogen onto the waste 2 in the processing unit 20, and a crushing means 22 that crushes the waste 2 cooled with liquid nitrogen.

[0011] The liquid nitrogen supply means 21 may have a liquid nitrogen supply unit 21a that supplies liquid nitrogen, a nozzle 21b that sprays liquid nitrogen, and a pipe 21c that connects the liquid nitrogen supply unit 21a and the nozzle 21b. The liquid nitrogen supply unit 21a may be a tank that stores liquid nitrogen, or may be a liquid nitrogen production device that produces liquid nitrogen from air. The liquid nitrogen supply means 21 may have a control valve 21d for turning on and off the spray of liquid nitrogen and for controlling the amount of spray. The control valve 21d may be controlled automatically or manually.

[0012] The shredding means 22 may have a shredding section 22a and a drive section 22b such as a motor that drives the shredding section 22a. The shredding section 22a is shown in the figure as being in the form of a propeller, but it may be in any other form as long as it is capable of shredding the waste 2. The propeller is shown as rotating vertically in the figure, but it may also rotate in any other direction.

[0013] The storage section 30 is a section that stores the waste 2 that has been shredded in the processing section 20. The waste 2 that has been shredded in the processing section 20 may be moved to the storage section 30 by the driving force (such as rotation) of the shredding means 22. A transport means such as a conveyor may be provided to move the waste 2 from the processing section 20 to the storage section 30.

[0014] The waste collection vehicle 1 may further include a water injection unit 23 that injects water onto the waste 2 in the treatment unit 20. The water injection unit 23 may include a tank 23a that stores water, a nozzle 23b that injects water, and a pipe 23c that connects the tank 23a and the nozzle 23b. The water injection unit 23 may include a control valve 23d for turning the injection of water on and off and controlling the amount of water injected. Control of the control valve 23d may be automatic or manual. The vehicle may include water injection control means that controls the injection of water by the control valve 23d depending on the moisture content of the waste 2.

[0015] According to the first embodiment, the waste 2 inside the vehicle cabin is cooled, embrittled, and / or frozen by the liquid nitrogen sprayed from the liquid nitrogen supply means 21, and is easily crushed by the crushing means 22. Furthermore, because the volume of the waste 2 is reduced by crushing, the number of trips between a garbage collection site or the like and an incineration site or the like is reduced, thereby reducing costs related to the number of waste collection vehicles 1, the number of workers, work time, etc. In the case of dry waste 2, wetting it with water from the water spray unit 23 can promote the cooling, embrittling, and / or freezing by the liquid nitrogen.

[0016] Fig. 2 shows a waste collection vehicle 1A according to a second embodiment of the present invention, and Fig. 3 shows a cover 40 for the waste collection vehicle 1A. Fig. 2 shows the waste collection vehicle 1A traveling on a road 4. The waste collection vehicle 1A has a suction means 24 and a cover 40 in addition to each element of the waste collection vehicle 1 (liquid nitrogen supply means 21, water injection unit 23, storage unit 30, etc.).

[0017] The suction means 24 sucks the contents of the cover 40 (weeds, garbage, etc. crushed by the crushing means 22) into the storage section 30. The suction means 24 may have an intake port 24a, a pump 24b such as a vacuum pump, and a pipe 24c connecting the intake port 24a and the pump 24b.

[0018] The cover 40 can cover the road surface on the side of the waste collection vehicle 1A as shown in the figure. As shown in Figure 3, the cover 40 can have nozzles 21b, 23b, crushing means 22 and suction port 24a.

[0019] Nozzle 21b of liquid nitrogen supply means 21 is capable of injecting liquid nitrogen into cover 40, and is capable of cooling, embrittling and / or freezing waste such as weeds 3 and other waste 2 inside cover 40. Crushing means 22 is attached in a position where it can crush the waste inside cover 40. Nozzle 23b of water injection unit 23 is capable of injecting water onto the waste inside cover 40, and functions in the same way as waste collection vehicle 1.

[0020] According to the second embodiment, waste such as weeds 3 can be cooled and embrittled and / or frozen with liquid nitrogen from the nozzle 21b, and then crushed by the crushing means 22. The crushed weeds 3 can be easily collected by being sucked into the storage section 30 using the suction force of the suction means 24. Because the volume of the weeds 3 is reduced by crushing, the number of trips to the incineration plant or the like can be reduced, achieving the same effect as the waste collection vehicle 1. Furthermore, because the waste collection vehicle 1A can collect weeds 3 while traveling, weeding can be done without closing roads to traffic, reducing costs related to the number of workers, work time, etc.

[0021] Like the waste collection vehicle 1, the waste collection vehicle 1A may have an input section 10, a processing section 20 in the vehicle interior, and a crushing means 22. This allows the vehicle to perform both waste collection and roadside weed removal. This allows for convenient roadside weed removal during waste collection. In this case, a single crushing means 22 may be interchangeably installed between the vehicle interior and the cover 40.

[0022] 4 shows a waste collection vehicle 1B according to a third embodiment of the present invention. In addition to some of the elements of the waste collection vehicle 1 (crushing means 22, water injection unit 23, storage unit 30, etc.), the waste collection vehicle 1B has a transport means 50 and a discharge means 60. The treatment unit 20 is a treatment tank 20A.

[0023] The liquid nitrogen supply means 21 supplies liquid nitrogen to the treatment tank 20A. The liquid nitrogen supply unit 21a is a tank that stores liquid nitrogen. A liquid nitrogen production device capable of producing liquid nitrogen may be added or substituted. As shown in the figure, the waste collection vehicle 1B has pipes 21c and 21e. Liquid nitrogen from the liquid nitrogen supply unit 21a is supplied to the treatment tank 20A from pipe 21c, and liquid nitrogen from the treatment tank 20A can be pumped up to the liquid nitrogen supply unit 21a from pipe 21e. Pipes 21c and 21e may be combined into a single pipe. Pipe 21e may be omitted.

[0024] A transport means (not shown, for example, a pump) for transporting liquid nitrogen between the treatment tank 20A and the liquid nitrogen supply unit 21a may be further provided. By operating the transport means, the liquid nitrogen contained in the treatment tank 20A can be sucked up into a tank via the pipe 21e, so that the liquid nitrogen is not discarded when the waste is disposed of at an incineration plant or the like.

[0025] In the waste collection vehicle 1B of the third embodiment, the waste 2 introduced is immersed in liquid nitrogen in the treatment tank 20A. The crushing means 22 crushes the waste 2 that has been immersed in the liquid nitrogen and cooled in the treatment tank 20A. The water injection unit 23 performs the same function as in the waste collection vehicle 1.

[0026] The transporting means 50 transports the waste in the treatment tank 20A that has been crushed by the crushing means 22 to the storage section 30. If the transporting means 50 is in the form of a rotary scoop, the liquid nitrogen passes through the scoop, but the crushed waste is scooped up by the scoop and transported to the storage section 30, so that the waste 2 can be processed sequentially while the liquid nitrogen remains in the treatment tank 20A.

[0027] The discharge means 60 is, for example, a hydraulic cylinder, which tilts the storage unit 30 as shown in Figure 5 to discharge the crushed waste inside it outside the vehicle. Discharging from the input unit 10 as shown in the figure simplifies the structure. It is convenient to connect the storage unit 30 and the treatment tank 20A as shown in the figure so that waste from both the storage unit 30 and the treatment tank 20A can be discharged outside the vehicle when the vehicle compartment is tilted. It is also possible to tilt the storage unit 30 to the side of the waste collection vehicle 1B and discharge it from the side of the vehicle.

[0028] According to the third embodiment, the waste 2 inside the vehicle is immersed in liquid nitrogen in the treatment tank 20A, whereby it is cooled, embrittled, and / or frozen, and then easily crushed by the crushing means 22, resulting in a high crushing effect. It is also convenient to discharge the waste outside the vehicle. The reduction in the number of trips between a garbage collection site, etc. and an incineration site, etc., and the promotion of cooling, embrittling, and / or freezing of the dried waste 2 by spraying water are similar to those in the first embodiment.

[0029] The dimensions, shapes, arrangements, numbers, materials, etc. of the waste collection vehicles and their components described in the above embodiments are merely examples, and other embodiments are possible. [Explanation of symbols]

[0030] 1, 1A, 1B... Waste collection vehicle 2. Waste 3. Weeds 4...road 10...Insertion section 20 Processing section 20A Treatment tank 21. Liquid nitrogen supply means 21a Liquid nitrogen supply unit 21b, 23b Nozzle 21c, 21e, 23c, 24c... Piping 21d, 23d... Control valve 22 Crushing means 22a Crushing section 22b Drive unit 23...Water injection part 23a···Tank 24...Suction means 24a...Inlet 24b Pump 30. Storage section 40···Cover 50. Means of transportation 60...Discharge means

Claims

1. a liquid nitrogen supply means for supplying liquid nitrogen to the waste; a crushing means for crushing the waste material cooled with liquid nitrogen; A waste collection vehicle having a storage section for storing waste crushed by the crushing means.

2. The liquid nitrogen supply means is capable of injecting liquid nitrogen onto waste in the vehicle interior, 2. The waste collection vehicle according to claim 1, wherein said shredding means is mounted in a position inside the vehicle where it can shred waste.

3. a cover capable of covering a road surface on the side of the waste collection vehicle; The device further includes a suction means for sucking the contents of the cover into the storage portion, The liquid nitrogen supply means is capable of injecting liquid nitrogen onto the waste inside the cover, 2. The waste collection vehicle according to claim 1, wherein said shredding means is mounted at a position capable of shredding waste within said cover.

4. 4. The waste collection vehicle of claim 3, wherein a single said crushing means is interchangeably mountable within the vehicle interior and within said cover.

5. 2. The waste collection vehicle of claim 1, further comprising a water injection unit for injecting water onto the waste.

6. 6. A waste collection vehicle according to claim 5, further comprising water injection control means for controlling the injection of water in accordance with the moisture content of the waste.

7. 2. The waste collection vehicle of claim 1, further comprising a treatment tank and a transport means for transporting the waste in the treatment tank that has been crushed by the crushing means to the storage section, wherein the liquid nitrogen supply means supplies liquid nitrogen to the treatment tank, and the crushing means crushes the waste that has been immersed in the liquid nitrogen and cooled in the treatment tank.

8. 8. A waste collection vehicle as claimed in claim 7, wherein said transport means is a rotary scoop.

9. 8. The waste collection vehicle of claim 7, further comprising a liquid nitrogen tank and a transport means for transporting liquid nitrogen from the treatment tank to the liquid nitrogen tank, and the liquid nitrogen supply means supplies liquid nitrogen in the liquid nitrogen tank to the treatment tank.

10. 2. The waste collection vehicle according to claim 1, further comprising discharge means for tilting said storage section to discharge the crushed waste therein to the outside of the vehicle.

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