JPS5913475Y2 - Incineration equipment for used drum irons - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for incinerating paint, various coating materials, and residual contents adhering to a used drum can during the process of recycling the drum can.

Conventional incinerators of this type include guide rails installed inside the incinerator to push several drum cans in a line, and expensive chain conveyors made of heat-resistant steel installed inside the incinerator. There is one that transports several drum cans,
In the former case, when the drum cans are sent into the furnace or sent out from the furnace after incineration, the rows are disordered and the drums tend to get stuck on the inner wall of the furnace, which impairs the work efficiency of feeding and unloading the drum cans.

In addition, there were various drawbacks such as the drum cans colliding with each other and creating dents at the collision points, making the appearance of the can difficult to see.

Although the latter method overcomes these drawbacks, it still has various drawbacks, such as the fact that residues from the incineration drum can stick to the chain, which can impede transportation and cause breakdowns.

The present invention aims to eliminate the above-mentioned conventional drawbacks, and also to make the smoke generated during incineration harmless before it is discharged, thereby preventing the occurrence of pollution.

The embodiments of the present invention will be explained below with reference to the drawings.
is an incinerator lined with firebrick and has a capacity to store six used drum cans in a row with one end cut out and each cut facing downward.

2 is an inlet for sending the drum can into the furnace 1, 3 is an outlet for sending the drum can out of the furnace 1, 4 is a burner firing port provided near the sunrise on both side walls 5, 5 of the furnace 1, and 6 is each burner firing port 4. If a large amount of air is fed into the furnace 1 through the air hole drilled in the upper part of the air hole 6 and the inside of the furnace 1 becomes high temperature, the strength of the drum can will be weakened by the heat, so the size of the hole should be adjusted to the volume of the furnace 1. The temperature inside the furnace 1 is adjusted to the ignition point of the drum can deposits, and the flame is increased.
Make sure the flame hits the entire drum can.

Reference numeral 7 denotes a barrier located at the bottom of the furnace 1, below the second drum can counted from the inlet 2 side.The flame injected from each burner outlet 4 is applied to this barrier, and the flame flows into the furnace. 1
The flames blow up from the bottom of the drum to the top, so that the flames surround the drum can.

8 is a burner opening provided on the lower wall surface of the inlet 2 of the furnace 1; 9
10 is the incineration ash extraction port provided on both sides, and 10 is the entrance 2.
Door to open and close, 11 is door to open and close exit 3, 12.13
The door wheel 14 is installed with hanging rods installed at both ends of the upper side of both doors 10 and 11.
．． 15 is installation.

Reference numeral 16.17 denotes a rail installed above each of the inlet 2 and outlet 3, and has an extension extending from one side of the furnace 1 to be slightly longer than the width of each door 10.11. ．．
The inlet 2 and outlet 3 of the furnace 1 are opened and closed by engaging the hanging rods 12, 13 of each door 10.11 with the door 17.

Reference numeral 18 indicates pulleys provided at four locations near both ends of each of the rails 16 and 17 so as to protrude onto the roof of the furnace 1, and reference numeral 19 indicates wires wrapped around each of the pulleys 18 in a shape on the roof of the furnace 1. So, connect both doors 10 and 11 to this wire 19.
A locking portion 20.2 protruding from the upper end of each hanging rod 12, 13
1 is locked respectively.

22 is a hydraulic cylinder installed on the roof of the furnace 1, and the tip of the piston 23 is connected to the wire 1 that crosses on the roof of the furnace 1.
9 so that both doors 10.11 open and close the inlet 2 and the outlet 3 at the same time as the piston 23 reciprocates.

24 is a roller conveyor installed at the bottom of the furnace 1 from the outlet 2 to the outlet 3, which also serves as a roller conveyor. The roller shafts 25, 26 are connected to the side walls 5, 26 of the furnace 1, respectively.
It is inserted into a through hole drilled in 5, and is mounted on each shaft bearing 27, 28 provided on the outside of both side walls 5, 5, respectively.

Reference numeral 29 denotes a water pipe for feeding cooling water into the hollow part of the roller conveyor 24 in the furnace 1, and the water pipe 29 is installed along the lower side of each end of one roller shaft 25. A water guide pipe 31 is connected to a rotary joint 30 provided in the main body.

Reference numeral 32 denotes a drain groove arranged along the lower side of the drain port 33 that opens at each end of the other roller shaft 26, and drains water that has absorbed heat by being sent into the hollow part of each roller body. It is.

Reference numeral 34 denotes a drain pipe that guides the drain water in the drain groove 32 to a water tank that supplies water to the water pipe 29. The water is circulated through the drain pipe 34 to the original water tank.

Reference numeral 35 indicates a feed roller conveyor provided to communicate with the roller conveyor 24 on the entrance 2 side, 36 indicates a feed roller conveyor provided to communicate with the roller conveyor 24 on the exit 3 side, and both roller conveyors 35
36 can be replaced with various conveyors.

37 is a gear fixed to each shaft of each roller conveyor 24, 35, 36, 38 is a chain wrapped around the gear 37, and 39 is a motor installed near the exit 3, whose rotational power is transmitted through a reducer 40. It is transmitted to the gear 37 at the end, and each roller conveyor 24, 35, 36 transports the drum can from the inlet 2 side through the furnace 1 to the outlet 3 side.

FIG. 7 shows an electric circuit that controls the simultaneous opening and closing of both doors 10.11 and the drive of each roller conveyor 24, 35.36. When the automatic operation push button switch FBI is pressed, relay X2. X3 operates and energizes one solenoid valve 5V-1 provided in the hydraulic cylinder 22, causing the piston 23 to move into the cylinder 22, so both doors 1
0.11 is stretched by the wire 19 to a position where the inlet 2 and outlet 3 are opened, as shown by the solid arrow.

Then, the limit switch LSI is activated, energizing the motor circuit MS, and each roller conveyor 24, 35.3
6 to feed the drum cans placed on the feed roller conveyor 35 into the furnace 1. When one of the drum cans moves onto the 1st to 4th rollers counting from the entrance of the furnace 1, a limit switch is activated. LS-3 is activated to stop the operation of motor circuit MS.

Then, relay X4. X5 and X6 operate to energize the other solenoid valve 5V-2 provided in the hydraulic cylinder 22 and move the piston 23 out of the cylinder 22, so both doors 10.11 are connected to the wire 1 as shown by the dotted arrow.
9 to a position that blocks the inlet 2 and outlet 3.

Then, the limit switch LS-2 is activated to energize the timer T, and when the time preset in the timer T has elapsed, the timer switch is activated and energized to the solenoid valve 5V-1 via the relay X7. Double doors again 10.
11 is driven open at the same time.

Then, the limit switch LS-1 is activated, and the next drum can placed on the feed roller conveyor 35 is fed into the furnace 1 in the same manner as described above.

In this way, the drum cans are fed into the furnace 1 one by one,
Six drum cans are always stored in furnace 1 and incinerated, and exit 3
At the same time as one tube is sent out from the inlet 2, the deposits on the drum can are continuously incinerated.

In addition, in Figure 6, CO5 is automatic/manual changeover switch, PH1 is automatic operation stop, PH3 is manual door open, PH
4 indicates the manual door close, PH1 indicates the manual door opening/closing stop, PH6 indicates the roller conveyor operation, and PH7 indicates the roller conveyor stop.

A secondary combustion chamber 41 is located on the roof of the incinerator 1 having the above configuration from the outlet 3 side to the population 2 side. A boiler 42 and a scrubber 43 are installed in series, a chimney 44 is connected to the scrubber 43, and a flue 50 provided at the outlet side of the furnace 1 is connected to the secondary combustion chamber 41, so that the gas generated in the furnace 1 is After guiding the smoke into the secondary combustion chamber 41 to burn the buried incompletely combusted material, the smoke is sent to the boiler 42 to lower the temperature of the smoke, and then sent to the scrubber 43 to remove the sulfide contained in the burial. This is to remove waste and other harmful substances, and to exhaust the smoke through the chimney 44.

Note that it is also possible to install an appropriate blower at an appropriate location from the secondary combustion chamber 41 to the chimney 44 to further promote smoke exhaustion.

In the figure, 45 is the burner flame port of the secondary combustion chamber 41, 46 is a safety valve installed in the boiler 42, and 47 is a water pipe connected to the scrubber 43, which sprays water to the scrubber 43 to remove harmful substances. .

48 is a drainage pipe that drains the water sprayed into the scrubber 43.

If the water pipe 47 is connected to a water tank that sends cooling water to the roller conveyor 24, and the drainage pipe 48 is also connected to the same water tank via a harmful substance removal device, the same water source as that for the cooling water of the roller conveyor 24 can be used, and the water can be stored separately. Water can be used more efficiently and the equipment can be simplified compared to the case where water sources are used.

Reference numeral 49 denotes a fire grate made of refractory bricks provided at the joint between the secondary combustion chamber 41 and the boiler 42.

In the used drum can incineration device for deposits on used drum cans having the above configuration, when the drum cans are sequentially fed into the furnace 1 with the cut end facing downward, the first drum can located from the entrance 2 is preheated, and the second drum can is preheated. The flame of the burner is directly injected into the drum can where it is located, and it is heated to the ignition point of the deposits attached to both the inside and outside of the drum can. is completely burnt out, and since it is far away from the burner, the temperature of the can gradually decreases, and the shrunken body moves out of the furnace 1 from the outlet 3 without being deformed by its own weight or having its strength weakened. Sent out.

In the process of incinerating the deposits on the drum can as described above, cooling water is constantly sent to the hollow part of the roller conveyor 24, which also serves as a loss handle, to cool the roller conveyor 24 and support the heavy drum can. roller conveyor 2
There is no possibility that the shaft of No. 4 will become unrotatable due to bending due to high heat.

Since the present invention is configured in an upwardly inclined manner, the drum cans can be automatically transferred into the furnace, and not only will the drum cans not collide with each other and create a dent at the collision location, There is no possibility that the drum cans will be disarranged in the furnace and get stuck on the inner wall of the furnace, thereby reducing the work efficiency of feeding and discharging.

In addition, the roller conveyor that also serves as a loss handle inside the furnace is constantly cooled by the cooling water sent to its hollow part.
Despite being exposed to high heat, it does not bend and rotates reliably, and unlike conventional chain conveyors, it does not cause any trouble or malfunction during drum can transport.

In addition, we installed an opening/closing device that simultaneously opens and closes the doors installed at the entrance and exit of the furnace, and a drive device that drives the roller conveyor in conjunction with the opening of both doors, allowing the incinerated drum can to be sent out from the exit of the furnace. At the same time, a large number of used drum cans can be continuously fed into the incinerator, such as by feeding unburned drum cans into the furnace from the inlet of the furnace, and the deposits can be incinerated and sent out of the incinerator. Efficiency can be significantly improved.

In addition, the smoke generated during incineration is removed from the secondary combustion chamber, boiler,
While passing through the scrubber, all harmful substances are removed and rendered harmless before being exhausted from the chimney, thereby preventing pollution from occurring.

In addition, the present invention does not simply apply the flame of a burner to a plurality of drum cans that are continuously transferred in the furnace, but preheats the first drum can from the entrance of the furnace among the plurality of drum cans. The second drum can is surrounded by flames that hit the barrier installed at the bottom and blow up from the bottom of the furnace until it reaches the ignition point of the deposits attached to both the inside and outside of the drum can. As the third and subsequent drums are heated, the deposits are completely burnt off by the time they approach the outlet of the furnace, and the temperature of the drum gradually decreases as the drums move away from the burner. By controlling the amount of air that is sent into the furnace and by making the air holes smaller to limit the amount of air sent into the furnace, the flame is enlarged and the drum can is heated to a temperature close to the ignition point of the deposits. , it is possible to completely burn off deposits while protecting the adult body from deformation and strength deterioration due to high heat.

In addition, by placing the flue at the farthest position from the burner opening, we prevent heat from escaping from the middle of the furnace to the outside of the furnace.
It has practical effects such as being able to transmit heat throughout the furnace and improving thermal efficiency.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention. Fig. 1 is a front view, Fig. 2 is a partially enlarged cross-sectional view of the incinerator, Fig. 3 is a right side view of Fig. 1, and Fig. 4 is a partially enlarged sectional view of the incinerator. Figure 5 is a partially cutaway plan view, Figure 6 is a sectional view of the joint between the secondary combustion chamber and the boiler, and Figure 7 is the door opening/closing device and roller conveyor drive device. FIG. 1... Incinerator, 2... Entrance, 3...
...Exit, 4...Burner outlet, 6...
...Air vent, 10...Entrance door, 11...
・Exit door, 18... Pulley, 19... Wire, 22... Hydraulic cylinder, 23...
・Piston, 24...Hollow roller conveyor that also serves as a loss dollar, 29...Water pipe, 32
...Drainage ditch, 35...Feeding roller conveyor, 36...Feeding roller conveyor, 37...Gear, 38...Chain, 39 ...Motor, 40...Reducer, 41...Secondary combustion chamber, 42...Boiler, 43...Scrubber... ... chimney, 50 ... flue.

Claims (1)

[Scope of utility model registration request] In an incinerator that has an inlet on one side and an outlet on the other side, and can accommodate any number of drum cans, there is a burner opening near the entrance of the furnace and a limit on the amount of air flowing into the furnace. An air hole is provided for sending air into the furnace, and at a position on the first side of the second drum can counting from the inlet side in the bottom of the furnace, the flame jetted from the burner is blown up from the bottom of the furnace to the top. A hollow roller conveyor, which also serves as a roller, is installed at the bottom of the furnace interior toward the exit of the furnace, and one end of each roller of this roller conveyor is connected to a water pipe that communicates with the hollow part. A drain port is provided at the other end of each roller, a feed conveyor is provided on the inlet side of the furnace to communicate with the roller conveyor, and a feed conveyor is provided in communication with the roller conveyor on the outlet side of the furnace.
An opening/closing door is provided at the inlet and outlet of the furnace, and an opening/closing device that opens and closes both doors at the same time, and a drive device that drives each of the conveyors mentioned above in conjunction with the opening of both doors. The second combustion chamber is connected to the inside of the drum via a flue, and the other end of the secondary combustion chamber is connected to a boiler, a scrubber, and a chimney in this order.