JPS6240994Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a waste tire chip feeding device.

Currently, waste tires are cut into chips by a crusher and sent in fixed quantities to an incinerator via a waste tire chip supply device (hereinafter simply referred to as the supply device).
There, the waste is incinerated and heat is recovered. By the way, as shown in FIG. 1, the supply device 1 for feeding the waste tire chips (hereinafter simply referred to as chips) to the incinerator includes a chip storage tank 2 and a chip storage tank 2 disposed at the bottom of the storage tank 2. It is composed of a screw feeder 3 and a screw feeder 3. The screw feeder 3 has a ribbon-like screw blade 4,
It consists of a rotation drive device 5 for a ribbon-shaped screw blade 4 arranged outside the storage tank 2. Furthermore, when the ribbon-shaped screw blade 4 is inside the storage tank 2, a U formed in the center of the bottom wall thereof is used.
The front wall 2a of the storage tank 2 is
and an inlet of an incinerator (not shown), the discharge tube (projecting from the front wall 2a) 7 is arranged to serve as a support guide for the conveyance passage and the ribbon-shaped screw blades 4 themselves. It is set up. By the way, according to the above structure, in the vicinity of the entrance of the discharge tube 7, the front wall 2a is attached to the chips that are taken into the ribbon-shaped screw blades 4 and are conveyed from the rear to the front.
The chips descending along the path join together and enter the discharge tube 7 while pushing each other. In particular, as the amount of stored chips decreases, the amount of chips taken into the ribbon-shaped screw blades 4 on the rear wall 2b side increases, and this tendency becomes stronger. In this way, if many chips join together near the entrance of the discharge tube 7 and enter the discharge tube 7, they will become clogged, making it impossible to discharge the chips to the incinerator, and the ribbon-shaped screw blades 4 will become clogged. There is a drawback that the rotary drive device 5 is overloaded. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a waste tire chip supply device that can eliminate the above-mentioned drawbacks. That is, the present invention has a storage tank for storing waste tire chips, a U-shaped groove provided on the bottom wall of the storage tank, and a discharge pipe protruding outward from the front end of the U-shaped groove. In a waste tire chip supply device comprising a screw feeder having ribbon-shaped screw blades, a plurality of fixed resistors are arranged at regular intervals on the rear wall of the storage tank on the opposite side to the discharge tube side. A waste tire chip supply device characterized by having movable resistors arranged side by side and projecting inwardly and downwardly, and capable of opening and closing gaps between the respective fixed resistors. Even if the amount of waste tire chips inside the screwdriver decreases, the fixed resistor and the movable resistor prevent an increase in the amount of waste tire chips taken into the ribbon-shaped screw blades on the rear wall side as in the conventional case.
Accordingly, the pushing of waste tire chips against each other near the entrance of the discharge tube is reduced, so that there is no clogging of waste tire chips in the discharge tube, and no overload is applied to the rotational drive device for the ribbon-shaped screw blade.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 5. Reference numeral 11 denotes an incinerator for incinerating waste tire chips (hereinafter simply referred to as chips) 12 that have been cut into chips by a crusher, and an incinerator 11 has an input port 1 for inserting the chips 12 in the middle of a side wall 11a thereof.
3 is formed to protrude, and a heat transfer tube 14 for heat recovery is disposed within the incinerator 11. 15 is a measuring device placed on the upper surface of the input port 13. 1
Reference numeral 6 denotes a waste tire chip supply device (hereinafter simply referred to as the supply device) supported by a pedestal 17 at a position corresponding to the incinerator 11, which includes a storage tank 18 for storing chips 12 and a chip 12 in this storage tank 18. and a screw feeder 19 that discharges the incinerator 11 into the incinerator 11 in fixed amounts. The screw feeder 19 is composed of a ribbon-shaped screw blade 20 and a rotation drive device 21 for the ribbon-shaped screw blade 20 arranged outside the storage tank 18. Furthermore, the above-mentioned ribbon-shaped screw blade 2
0 is inside the storage tank 18, its bottom wall 18a
and between the front wall 18b of the storage tank 18 and the inlet 13 of the incinerator 11, the conveying passage and the ribbon-shaped screw blade 20 It is disposed within a discharge tube (projecting from the front wall 18b) 23 that serves as a support guide for itself. 24 is the rear wall 18c of the storage tank 18
A fixed resistor is provided at a position slightly above the ribbon-shaped screw blades 20 and projects downwardly from the rear wall 18c toward the front wall 18b. A plurality of them are arranged in parallel with a gap a. Reference numeral 25 denotes a movable resistor that can open and close the gap a between the fixed resistors 24.
That is, as shown in FIG. 4, a trough-shaped groove 24a is formed on each side of the fixed resistor 24, and a trough-shaped groove 24a is formed on the side of the movable resistor 25 to engage with the trough-shaped groove 24a. A protrusion 25a is formed, and a rack 26 is formed on the lower surface of the movable resistor 25.
A pinion 28 fixed to a rotating shaft 27 is meshed with this rack 26. Note that the rotation shaft 27 is of course connected to a rotation drive device (not shown). Therefore, when the pinion 28 rotates, the movable resistor 25 moves in and out of the rear wall 18c as shown by arrow A in FIG. 3, and the gaps a between the fixed resistors 24 are opened and closed. Reference numeral 29 is a conveyor for feeding chips 12 arranged in an opening 30 formed in the upper part of the rear wall 18c, and reference numeral 31 is a bearing for holding the output shaft 21a of the rotary drive device 21 mounted on the rear wall 18c. Therefore, in the above structure, the chips 12 carried by the truck 32 are charged into the storage tank 18 via the feeding conveyor 29 and stored therein. The stored chips 12 are conveyed through the U-shaped groove 22 and the discharge tube 23 by the rotating ribbon-shaped screw blade 20, and are delivered to the measuring instrument 1 from the discharge port 23a of the discharge tube 23.
5 and input port 13 into the incinerator 11 . By the way, the amount of chips stored in the storage tank 18 is 1
2 decreases, the chip 12 near the rear wall 18c
However, the fixed resistor 24 or the movable resistor 25 protrudes inward to restrict the amount of the chip 12 taken in, and the upper surface of the chip 12 is always is made to be in a horizontal state. Therefore, even if the number of chips 12 decreases, the amount of chips 12 taken in on the rear wall 18c side does not increase as in the conventional case, so the discharge tube 23
The pushing of the chips 12 against each other near the entrance is reduced, and the chips 12 are no longer clogged in the discharge pipe 23. Note that the chips 12 supplied into the incinerator 11 are incinerated, and heat is recovered.

According to the present invention, a plurality of fixed resistors are arranged side by side on the rear wall of the storage tank on the opposite side to the discharge pipe side so as to project inwardly and downward from the storage tank, and the gaps between the fixed resistors are Since a movable resistor that can be opened and closed is provided, even if the amount of waste tire chips in the storage tank decreases, the movable resistor can be protruded inward according to the amount, so that the fixed resistor and the movable resistor can be replaced. The amount of chips taken in is regulated by the protruding portion of the body, and the upper surface of the chips can be kept in a horizontal state at all times. Therefore,
Even if the number of chips decreases, the amount of chips taken in on the rear wall side does not increase as in the conventional case, so the pushing of chips against each other near the entrance of the ejection tube is reduced, eliminating clogging of chips in the ejection tube and forming a ribbon-like structure. No overload will be applied to the rotational drive device of the screw blade.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main part of a conventional example, Figs. The figure is a view taken along the - arrow in FIG. 3, and FIG. 5 is a view taken along the - arrow shown in FIG. 11...Incinerator, 12...Waste tire chips, 1
6...Waste tire chip supply device, 18...Storage tank, 18a...Bottom wall, 18b...Front wall, 18c...
...Rear wall, 19... Screw feeder, 20...
Ribbon-shaped screw blade, 21... Rotation drive device, 22... U-shaped groove, 23... Discharge pipe, 24...
...Fixed resistor, 24a...Groove, 25...Movable resistor, 25a...Protrusion, 26...Rack, 27...
...rotating shaft, 28...pinion.

Claims (1)

[Scope of utility model registration request] A storage tank for storing waste tire chips, and a ribbon-shaped pipe disposed within a U-shaped groove provided on the bottom wall of the storage tank and a discharge pipe protruding outward from the front end of the U-shaped groove. In a waste tire chip feeding device comprising a screw feeder having screw blades, a plurality of fixed resistors are installed at regular intervals on the rear wall of the storage tank on the opposite side to the discharge tube side, inside the storage tank and downward. 1. A waste tire chip supply device characterized in that movable resistors are arranged in parallel and projecting obliquely from each other and can freely open and close gaps between the fixed resistors.