JPH0313705A - Full automatic incinerating device - Google Patents

Abstract

PURPOSE:To adequately regulate the gas volume change inside the burning chamber due to the temperature variance in the furnace as well as the waste gas temperature by changing the fan speed in response to the temperature change so as to regulate the gas volume, and regulating the water supply rate to the shower ring which maintains the temperature of gas entering the dust trap at a constant level. CONSTITUTION:The speed of a feed air fan 18 and a waste gas fan 19 is regulated in response to the temperature change so as not to create an imbalance between them by means of an inverter which is driven by a general purpose motor which is controlled by a temperature sensor 28 in the incinerating chamber and a micro computer that is capable of a high speed operation. The gas temperature entering the cooling cyclone 17 is measured by a temperature sensor 34 so as to maintain the waste gas temperature at a constant level by regulating the water supply rate by regulating the rotational speed of a pressurizing pump 32 in the shower ring. This way, the gas volume change in the incinerating chamber due to the temperature change in the furnace or the waste gas temperature can be automatically regulated.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an incinerator that performs the entire process automatically, from inputting garbage to incineration to disposing of ash. The present invention relates to a fully automatic incinerator that makes it possible to automatically handle changes in the volume of gas or the adjustment of exhaust gas temperature.

[Conventional technology] In conventional waste incinerators, there is no temperature control method using an auxiliary burner in the incineration section, and the dust collection section is constantly cooled to the dust collector inlet temperature to remove suspended matter and chlorine. However, there is no way to control the exhaust gas temperature by adjusting the fluctuations associated with the gas temperature in the combustion chamber.

[Problems to be Solved by the Invention] An object of the present invention is to vary the supply and exhaust amount based on temperature changes in the combustion chamber to achieve efficient and complete combustion, and at the same time to vary the amount of washing water in the dust collector to reduce the exhaust gas temperature. It is an object of the present invention to provide a fully automatic incinerator that can maintain a constant amount of waste and produce no harmful substances such as dioxins.

[Means to solve the problem] The means or structure of the present invention is as follows.

Using the incinerator's indoor temperature sensor, a microcomputer performs high-speed calculations and an inverter using a general-purpose motor changes the rotational speed of the exhaust fan in accordance with temperature changes, adjusting the gas volume and keeping the gas temperature that enters the precipitator constant. A fully automatic incinerator comprising means for adjusting the amount of water in the shower ring.

[Example, Operation of the Invention] A fully automatic incinerator according to the present invention will be outlined using a flow sheet.

The fully automatic incinerator of the present invention operates automatically from loading garbage to storing ash in the ash bunker. In the figure, 1 is a hopper, 2 is a screen, 3 is a vibrator, and 14 is a screw conveyor. Garbage thrown in from outside is transferred to a parbate hopper (storage chamber) 1, a screen 2 is installed above the hopper, and a vibrator 3 is used to shake it off.The garbage that has passed through the screen is transferred to a screw conveyor 4 that acts as a valve. It can be arranged quantitatively. 5 is transported by a wire mesh belt conveyor to the upper chamber of an automatic loading machine 6 located at the upper part of the furnace. The automatic feeding machine 6 has two chambers, an upper and a lower chamber, and when the upper chamber is full, the beam sensor 7 commands to stop the conveyance path including the parvate and hopper. In response to a signal from a beam sensor in the lower chamber, the piston 8 lowers it into the lower chamber, and upon receiving a command from an in-furnace laser beam sensor 9, it is introduced into the drying zone 1o. When the upper chamber is empty, it commands the conveyance path to restart, fill up, and then stop. Continue this repetition. Reference numeral 11 denotes a sliding loss dollar.The garbage put into the drying zone 10 is sequentially sent toward the incineration zone 12 by the sliding loss dollar 11, and is incinerated by the swinging loss dollar 13. 14 is a re-combustion chamber, and the exhaust gas passes through the sintering block 15 of the re-combustion chamber 14 and is introduced into the cooling cyclone 17 via a smoke guide 16' with a heat exchanger 16. The heat exchanger 16 is double-layered, and outside air is sent to the outside by a blower 8, heated by the temperature of the exhaust gas passing through the inside, and part of the hot air is used as dry air from behind the stoker, and part of it is sent to the back of the stoker. Supplied as combustion air from the bottom.

The cooling cyclone 17 cleans and cools the exhaust gas, removes suspended matter, cleans it, and discharges it to the outside using the exhaust fan 19.

The used water is mixed with a neutralizer to adjust its pH and introduced into the wastewater treatment equipment, where it passes through a sedimentation tank 20, a filtration tank 21, an aeration tank 22, etc., and is then adjusted to regulatory values such as SS, B○D, and COD. is cleared and discharged into the general external drainage canal. The incinerated ash is automatically dropped into an ash bit 24 by a swinging loss dollar 13, dropped onto an external conveyor 25 by an ash quantity piston 24', and stored in an ash bunker 26 to wait for removal by a truck or the like. 23 is an auxiliary burner, 27 is a spray nozzle, 2
8 is a combustion chamber temperature sensor, 29 is a spray pressure pump, 30 is a water tank, 31 is a cleaning spray, 32 is a pH
33 is an electric precipitator, and 34 is a shower ring temperature sensor.

The temperature of combustion in the incinerator increases over time, and the maximum temperature in the incinerator is 800°C.

273+20 1rr1' becomes a, 5rr. As a result of this change, the volume also changes from moment to moment as the temperature changes. Changing the volume also changes the amount of oxygen in the cubic rice barley, so this solution is necessary for complete combustion.

a. Adjustment of gas volume An inverter using a general-purpose motor uses high-speed calculations from a microcomputer using a temperature sensor 1 inside the incineration chamber, and a blower 2.
The rotational speed of the exhaust fan 3 is adjusted in accordance with temperature changes so as not to cause imbalance.

b. Adjustment of the amount of water in the shower ring The temperature of the gas entering the cooling cyclone 4 is measured by a temperature sensor 5, and the amount of water is adjusted by rotating the pressure pump 6 of the shower ring to keep the temperature of the exhaust gas constant. This method is similar to a.

[Effects of the Invention] According to the present invention, in a fully automatic incinerator, changes in the volume of gas in the combustion chamber due to temperature changes in the furnace and adjustment of exhaust gas temperature can be perfectly performed, and the performance as a fully automatic incinerator is improved. is significantly improved.

[Brief explanation of drawings]

FIG. 1 is a flow sheet of a fully automatic incinerator according to the present invention, and FIG. 2 is a longitudinal sectional front view. ■...Parbate hopper 6...Automatic feeding machine 7.
... Beam sensor 9 ... Laser beam sensor 10
... Drying zone 11 ... Sliding loss dollar / Incineration zone 13 ... Swinging loss dollar 14 - Reburning chamber 16
... Heat exchanger 17 ... Cooling cyclone 1
8...Blower 19...Exhaust fan 25...Blowout conveyor 26...Ash bunker 28...Combustion chamber temperature sensor

Claims (1)

[Claims] The indoor temperature sensor of the incinerator is used to adjust the gas volume by changing the rotation speed of the exhaust fan in accordance with temperature changes using an inverter using a general-purpose motor based on high-speed calculations by a microcomputer, and the temperature of the gas entering the dust collector is kept constant. and means for adjusting the amount of water in the shower ring.