CN212005706U

CN212005706U - Feeding system for rotary kiln hazardous waste incineration device

Info

Publication number: CN212005706U
Application number: CN202020084381.7U
Authority: CN
Inventors: 王昭宏; 雍士玮; 曹丹; 李博; 杨岳青
Original assignee: Shanghai Institute of Electromechanical Engineering
Current assignee: Shanghai Institute of Electromechanical Engineering
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-11-24
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a feeding system for a rotary kiln hazardous waste incineration device, which comprises a feeding conveyor (2), a weighing hopper (3), a first-stage flap valve (4), a sealed cabin (5), a second-stage flap valve (6) and an inclined chute (8); feeder hopper (1) and play hopper (21) that extend to in the hopper of weighing are equipped with on the feeding conveyor, the first order flap valve and the second level flap valve of interlocking linkage are adorned respectively at sealed cabin top feed end and bottom discharge end, the hopper of weighing, sealed cabin and chute are sealing connection in proper order, form intermittent type formula feedstock channel, the chute discharge end inserts the feed end of rotary kiln (10), intermittent type formula feedstock channel vertically establishes between feeding conveyor and rotary kiln, make the material pass through intermittent type formula feedstock channel intermittent type transport and slide in the rotary kiln. The utility model discloses can ensure that the feeding of material is smooth and easy to effectively avoid tempering, corruption scheduling problem, thereby reduce the fault incidence, improve the operation of rotary kiln reliably, high-efficient.

Description

Feeding system for rotary kiln hazardous waste incineration device

Technical Field

The utility model relates to a feed system for endangering useless processing especially relates to a feed system that is used for rotary kiln hazardous waste to burn device.

Background

With the development of society and economy, the generation amount and types of dangerous wastes in various industries are increasing, and the ecological environment on which human beings live is seriously damaged by the random discharge and unreasonable disposal of the dangerous wastes. In recent years, more and more comprehensive treatment projects are built for treating hazardous wastes, wherein a rotary kiln incinerator becomes a mainstream hazardous waste treatment mode, and the rotary kiln feeding systems in the prior art mainly comprise the following steps:

1. feeding by a grab bucket and a screw conveyer:

the working mode of the feeding structure is as follows: the hydraulic grab grabs the waste in the material pit and sends the waste into the screw conveyor, and then the waste is quantitatively sent into the rotary kiln by controlling the rotating speed of the screw conveyor. This feed system's feed rate is more stable, can maintain the burning operating mode in the rotary kiln better, but its shortcoming lies in: firstly, the inlet of the screw conveyer is easy to be blocked, and the blocking point needs to be cleaned frequently by manpower. Secondly, when the load fluctuation in the furnace is large, high-temperature smoke is easy to reversely flow to the spiral conveyor, so that materials in the conveyor are ignited and extend to the feeding hole, and equipment damage and even fire are caused.

2. Grab bucket + chute + hydraulic push rod feeding:

the working mode of the feeding structure is as follows: the hydraulic grab bucket grabs the waste in the material pit and then sends the waste into a feed hopper in front of the rotary kiln, the material slides into an inclined chute in the feed hopper, and the material is pushed into the rotary kiln for incineration at regular time through a hydraulic push rod. The feeding system can more thoroughly push the materials in the inclined chute into the rotary kiln through the hydraulic push rod, so that the materials are not easy to block at the feeding throat. But the disadvantages are: the mechanical hydraulic push rod has more transmission parts, and after repeated pushing and retracting processes, residual materials which are not pushed into the kiln can enter the interior or gaps of the push rod transmission parts, so that the parts are jammed or even can not move, and the parts need to be cleaned regularly. Secondly, the push rod is positioned close to the rotary kiln panel, the temperature of the push rod is high, rotating parts of the push rod are easy to damage under the heat radiation of high-temperature flue gas, and the service life of the push rod is short. And excess materials attached to the hydraulic push rod are easy to catch fire under the radiation of high-temperature smoke, damage related equipment, and need to continuously overhaul the feeding push rod device to ensure the continuous production of the whole incineration device.

3. SMP feed system:

the SMP feeding system is a foreign introduction technology and consists of three subsystems, namely a Shredder subsystem, a Mixer subsystem and a Pump subsystem, and the working mode is as follows: the packaged materials are conveyed into the crusher through the lifting system, the shearing knife in the crusher crushes the materials to a preset particle size and then conveys the materials into the downstream mixer, the materials for quality modification such as sludge waste liquid are mixed into the mixer, and the materials are conveyed into the kiln through the hydraulic plunger pump. Compared with the traditional technology, the feeding system has great innovation, can save facilities such as a feeding material pit, and the like, and has good stabilizing effect on combustion in the kiln because the feeding is continuous. But it was determined that: if the materials in the mixer are not uniformly modified, the whole system is very easy to block, and the feeding system is not suitable for feeding inflammable and reactive wastes, so that the application of the feeding system is greatly restricted by the properties of the wastes.

Disclosure of Invention

An object of the utility model is to provide a feed system for dangerous refuse incineration device of rotary kiln can ensure that the feeding of material is smooth and easy to effectively avoid tempering, corruption scheduling problem, thereby reduce the fault incidence, improve the operation of rotary kiln reliably, high-efficiently.

The utility model discloses a realize like this:

a feeding system for a rotary kiln hazardous waste incineration device comprises a feeding conveyor, a weighing hopper, a first-stage flap valve, a sealed cabin, a second-stage flap valve and an inclined chute; a feed hopper is arranged at the starting end of the feeding conveyor, a discharge hopper is arranged at the tail end of the feeding conveyor, the outlet end of the discharge hopper extends into the weighing hopper, and materials thrown into the feed inlet are conveyed into the weighing hopper through the discharge hopper by the feeding conveyor; the first-stage flap valve is arranged at the top feeding end of the sealed cabin, and the second-stage flap valve is arranged at the bottom discharging end of the sealed cabin; the weighing hopper, the sealed cabin and the inclined chute are sequentially and hermetically connected to form an intermittent feeding channel, the discharge end of the inclined chute is inserted into the feeding end of the rotary kiln, and the intermittent feeding channel is longitudinally arranged between the feeding conveyor and the rotary kiln, so that materials are intermittently conveyed through the intermittent feeding channel and slide into the rotary kiln.

And the intermittent feeding channel is provided with a vibration damper which is arranged between the outlet end of the second-stage flap valve and the inlet end of the inclined chute.

The inclined chute is composed of a vertical section and an inclined section, the vertical section is connected with the second-stage flap valve, the end part of the inclined section is inserted into the rotary kiln, a water-cooling jacket is arranged between the inner wall and the outer wall of the vertical section and the inner wall and the outer wall of the inclined section, circulating cooling water is arranged in the water-cooling jacket, and the circulating cooling water circularly flows in a preset flow channel in the water-cooling jacket.

The water-cooling jacket is formed by splicing a plurality of heat exchange plates, a liquid outlet is formed in the bottom of the inclined section of the inclined chute, and the liquid outlet is located outside the rotary kiln and is connected to the liquid outlet of the inclined section.

The inclined angle between the inclined section of the inclined chute and the horizontal plane is 45-75 degrees.

The inclined chute is provided with an access door and a plurality of steam cleaning interfaces.

The volume of the weighing hopper is larger than that of the discharge hopper of the feeding conveyor, the volume of the feeding hopper is larger than that of the grab bucket, and the inclination angle of the feeding hopper is not less than 60 degrees.

And a discharge hopper of the feeding conveyor is provided with a blockage clearing opening.

The end of the feeding conveyor is provided with a shaping baffle plate, the shaping baffle plate is composed of a baffle plate and a roller wheel which are arranged at the inlet end of the discharging hopper, and materials are rolled by the baffle plate and the roller wheel of the shaping baffle plate and then enter the discharging hopper from the feeding conveyor.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model discloses a vertical setting of intermittent type formula feedstock channel can utilize the slope section of action of gravity and oblique chute to make the smooth and easy slip-in rotary kiln of material burn, has not only simplified the structure, and the incidence that also can greatly reduced feed that leads to because of mechanical failure is not smooth or can't the feeding has ensured the unobstructed of feeding, can be used to the nature changeable, glue thick, sharp-pointed danger waste material's processing.

2. The utility model realizes the small amount of multiple feeding of materials by matching the feeding conveyor and the weighing hopper, and avoids the unstable combustion caused by the fluctuation of the feeding amount of the materials; meanwhile, the control accuracy of the material adding amount is improved by utilizing the shaping and variable rotating speed functions of the feeding conveyor, and the smoothness of feeding is also ensured.

3. The utility model discloses a sealed cabin realizes the interlocking through the first order flap valve and the second level flap valve of switching in turn and keeps apart, and tempering or high temperature flue gas are excessive and lead to the damage of relevant equipment such as hopper of weighing when preventing to feed, have ensured whole feed system's safe and reliable operation, have also reduced feed system's the rate of leaking out, improve the combustion stability in the rotary kiln furnace.

4. The utility model discloses a damping device absorbs the collision impact force when throwing the material to absorb the displacement that leads to because of high temperature thermal energy between each part of feed system, ensure the reliability and the security of feeding.

5. The utility model discloses a circulating cooling hosepipe in the water-cooling jacket walks away the influence that high temperature flue gas thermal radiation and convection current brought chute and material to one side, has also avoided the gathering of material in chute to one side simultaneously, ensures that the feeding is unobstructed and the system operation is stable.

The utility model discloses a hopper of weighing has realized the even uniform velocity orderly and intermittent type nature control of feeding, has avoided the undulant big, the not smooth condition of blockking up even of feeding rate to the sealed cabin through the linkage of business turn over material mouth interlocking has realized the inside and outside isolation of rotary kiln furnace, has avoided tempering, corruption scheduling problem, thereby has reduced the fault incidence, has improved the operational reliability and the high efficiency of rotary kiln.

Drawings

FIG. 1 is a front sectional view of a feeding system for a rotary kiln hazardous waste incineration plant of the present invention;

figure 2 is a side view of the feed system for the rotary kiln hazardous waste incineration device of the present invention.

In the figure, a feed hopper is 1, a feed conveyor is 2, a discharge hopper is 21, a blockage removing opening is 22, a moulding material baffle is 23, a weighing hopper is 3, a first-stage flap valve is 4, a sealed cabin is 5, a second-stage flap valve is 6, a vibration damper is 7, an inclined chute is 8, a vertical section of 81, an inclined section of 82, a liquid outlet of 83, an access door of 84, a steam cleaning interface of 85, a water-cooling jacket of 9 and a rotary kiln of 10.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to the attached drawings 1 and 2, the feeding system for the rotary kiln hazardous waste incineration device comprises a feeding conveyor 2, a weighing hopper 3, a first-stage flap valve 4, a sealed cabin 5, a second-stage flap valve 6 and a chute 8; a feed hopper 1 is arranged at the beginning end of the feeding conveyor 2, a discharge hopper 21 is arranged at the tail end of the feeding conveyor 2, the outlet end of the discharge hopper 21 extends into the weighing hopper 3, and materials thrown into the feed inlet 1 are conveyed into the weighing hopper 3 through the discharge hopper 21 by the feeding conveyor 2; the first-stage flap valve 4 is arranged at the top feeding end of the sealed cabin 5, the second-stage flap valve 6 is arranged at the bottom discharging end of the sealed cabin 5, and the first-stage flap valve 4 and the second-stage flap valve 6 are interlocked, so that the materials in the sealed cabin 5 are intermittently output; weighing hopper 3, sealed cabin 5 and oblique chute 8 are sealing connection in proper order, form intermittent type formula feedstock channel, and the discharge end of oblique chute 8 inserts in the feed end of rotary kiln 10, and intermittent type formula feedstock channel vertically sets up between feeding conveyor 2 and rotary kiln 10, also can be according to arranging the big angle slope setting of intermittent type formula feedstock channel in the space, makes the material pass through intermittent type formula feedstock channel intermittent type and carry and slide in rotary kiln 10.

The logic of interlocking linkage of the first-stage flap valve 4 and the second-stage flap valve 6 is as follows: when the feeding conveyor 2 and the first-stage flap valve 4 are opened, the second-stage flap valve 6 is closed, so that the materials are stored in the sealed cabin 5; when the second-stage flap valve 6 is opened, the feeding conveyor 2 and the first-stage flap valve 4 are closed, so that the materials in the sealed cabin 5 slide into the rotary kiln 10 through the inclined chute 8, and the intermittent output of the materials is realized. Those skilled in the art can understand that the interlocking linkage of the first-stage flap valve 4 and the second-stage flap valve 6 provides double safety guarantee for the feeding system, the stage of entering and storing the materials in the sealed cabin 5 and the stage of entering the rotary kiln 10 from the sealed cabin 5 are separately performed, and the locking of the first-stage flap valve and the opening of the other-stage flap valve can be used for effectively isolating high temperature and outside atmosphere in the rotary kiln 10 by combining the sealing performance of the sealed cabin 5 no matter which stage is performed, so that the reverse channeling of high-temperature flue gas at the downstream into upstream equipment is avoided, the possibility of tempering is avoided, meanwhile, the outside cold air cannot enter the hearth of the rotary kiln 10 in a large amount, the open stability of combustion in the furnace is ensured, and the air leakage rate and the fuel consumption are reduced.

Preferably, the first-stage flap valve 4 and the second-stage flap valve 6 of the sealed cabin 5 can be controlled by hydraulic drive equipment to be turned over and opened and closed, so that the opening and closing of the feeding end and the discharging end of the sealed cabin 5 are realized, the valve plates of the first-stage flap valve 4 and the second-stage flap valve 6 can be made of stainless steel and other wear-resistant materials, and the service life is long.

Furthermore, intermittent type formula feedstock channel on be equipped with damping device 7, damping device 7 installs between the exit end of second level flap valve 6 and the entrance point of chute 8, preferably, damping device 7 can adopt high temperature resistant flexible sleeve pipe to make, materials such as the silica gel cloth of taking the organosilicon coating, the skilled person in the art should understand, set up damping device 7 and can be used to the great impact force when buffering material falls into seal chamber 5 and chute 8, ensure intermittent type formula feedstock channel's mechanical structure's stability, reduce the fault rate, its high temperature resistance can resist the high temperature flue gas of anti-scurrying because of the pressure oscillation, its structure is difficult for being destroyed.

The inclined chute 8 is composed of a vertical section 81 connected with the second-stage flap valve 6 and an inclined section 82 of which the end part is inserted into the rotary kiln 10, a water cooling jacket 9 is arranged between the inner wall and the outer wall of the vertical section 81 and the inclined section 82, and circulating cooling water is arranged in the water cooling jacket 9 and is circulated in a preset flow channel in the water cooling jacket 9, so that heat caused by high-temperature flue gas radiation and convection is taken away, coking of materials on the inner wall of the inclined chute 8 can be prevented, and the influence of the high-temperature heat radiation in the rotary kiln 10 on the inclined chute 8 is reduced.

Preferably, the water-cooling jacket 9 is formed by splicing a plurality of heat exchange plates, a liquid outlet 83 is arranged at the bottom of the inclined section 82 of the inclined chute 8, the liquid outlet 83 is located outside the rotary kiln 10, and the liquid outlet at the bottom of the heat exchange plate is connected to the liquid outlet 83 of the inclined section 82, it should be understood by those skilled in the art that the design of the cooling water heat exchange plate can prevent the weld joint of the heat exchange plate from not breaking during operation, and the cooling water is not gasified in the inclined section 82, the cooling water in the water-cooling jacket 9 can be discharged and replaced through the liquid outlet 83 of the inclined section 82 through the liquid outlet at the bottom, and the liquid outlet 83 can be plugged by a sealing valve and other devices.

The inclined angle between the inclined section 82 of the inclined chute 8 and the horizontal plane is 45-75 degrees, so that the materials can slide into the hearth of the rotary kiln 10 through the gravity of the inclined section 82.

Oblique chute 8 on be equipped with access door 84, can take place to open access door 84 when the circumstances such as smooth or jam at oblique chute 8, the manual work of being convenient for is cleared up and is blockked up the position, preferably, modes such as access door 84 accessible bolt, hinge, high temperature resistant sealing washer are installed on oblique chute 8's slope section 82, ensure convenience and the security that opens and shuts.

The inclined section 82 of the inclined chute 8 is provided with a plurality of steam cleaning interfaces 85 at intervals, and those skilled in the art can understand that the plurality of steam cleaning interfaces 85 can be externally connected with steam supply equipment and used for regularly cleaning the inner wall of the inclined chute 8 by steam when the feeding system operates, and the purging surface of the plurality of steam cleaning interfaces 85 covers all parts affected by heat radiation of flue gas in the inclined chute 8, so as to ensure the effectiveness of cleaning operation.

The volume of the weighing hopper 3 is larger than that of the discharging hopper 21 of the feeding conveyor 2, and the materials are prevented from leaking out during conveying through the volume allowance of the weighing hopper 3 and the discharging hopper. Preferably, a certain amount of high-precision weighing sensors are uniformly arranged around the weighing hopper 3, the weighing sensors are externally connected to a BMS management system and preset conveying standard values for counting the amount of materials falling into the sealed cabin 5, the rotating speed and the operating time of the feeding conveyor 2 can be controlled according to the actual conveying amount and the conveying standard values of the materials, the second-stage flap valve 6 is opened and the first-stage flap valve 4 is closed to realize feeding when the feeding reaches the conveying standard values, and the accurate and thorough completeness of the blanking is ensured.

The material discharging hopper 21 of the feeding conveyor 2 is provided with a blockage clearing opening 22, and the blockage clearing opening 22 can be opened when the material blocks the material discharging hopper 21, so that the material discharging hopper 21 can be conveniently and manually cleared. Preferably, the discharge hopper 21 can be made of carbon steel, and has high strength and long service life. Preferably, the blockage clearing opening 22 can be mounted on the side wall of the discharge hopper 21 in a bolt mode, a hinge shaft mode, a high-temperature-resistant sealing ring mode and the like, and convenience and safety of opening and closing are guaranteed.

Preferably, feeding conveyor 2 can adopt totally-enclosed apron formula conveyer, and the apron intensity can resist the impact effect of material whereabouts to feeding conveyor 2, and the apron can adopt 16Mn steel sheet, through chain pulling, has advantages such as wearing and tearing are few, noiselessness, can be high temperature resistant, bear greatly, long service life. The feeding conveyor 2 adopts a discontinuous intermittent working mode and can be started with materials, a motor for driving the feeding conveyor 2 adopts variable frequency control and is provided with a forced fan for cooling, the low-speed and uniform-speed conveying of the materials is ensured, and the whole machine is stable and reliable and has low failure rate. The feeding conveyor 2 should adopt a closed design to ensure uniform feeding and no material overflow.

Further, the end of the feeding conveyor 2 is provided with a shaping striker plate 23, the shaping striker plate 23 is composed of a baffle plate and a roller which are arranged at the inlet end of the discharge hopper 21, and the material enters the discharge hopper 21 after being rolled by the baffle plate and the roller of the shaping striker plate 23. Those skilled in the art should understand that the feeding amount of the material is controlled by the shaping material baffle 23 with the rolling shaping function of the feeding conveyor 2 and a variable-speed controller such as a motor, the motor drives the feeding conveyor 2 to convey the material to the tail end, the shaping material baffle 23 installed at the outlet position of the feeding conveyor is limited by a baffle plate to the material output height, the material is rolled by the gravity of a roller, the shape of the output material is changed, the thickness of the output material is smaller, downstream weighing is facilitated, and the working accuracy and stability of the feeding system are also ensured. In practical application, the installation positions of the baffle and the roller can be adjusted according to the requirements of the types of materials, the single weighing limitation, the feeding precision and the like, so that the thickness of the outlet materials is adjusted.

The volume of feeder hopper 1 be greater than the volume of grab bucket, and the angle of inclination of feeder hopper 1 is not less than 60, ensure that feeder hopper 1 can bear the material that the grab bucket once carried and fall on feeding conveyor 2.

The utility model discloses a feed hopper 1 of charge-in system installs near the material hole, the slope section 82 of chute 8 and the feed inlet sealing connection of rotary kiln 10 to one side. When useless incineration disposal of danger, the waste after the breakage all is saved in the useless incineration workshop of danger and is stirred and turned over by the hydraulic grab bucket in the material hole, the effect of mixture and homogenization, the waste material of accomplishing the mixture is sent to feeding conveyor 2's feeder hopper 1 after being snatched by the grab bucket, form closely knit material layer in feeder hopper 1, feeding conveyor 2 receives behind the transport instruction, start through driving motor, the material slowly falls into low reaches hopper 3 of weighing through out hopper 21, waste material feeding conveyor 2 adopts the mode of batch feeding, throw the stable burning in order to guarantee rotary kiln 10 of the waste of fixed quantity at every turn. When the feeding conveyor 2 runs, the first-stage flap valve 4 is in an open state, the second-stage flap valve 6 is in a closed state, and after each batch of materials is conveyed to the sealed cabin 5 between the first-stage flap valve 4 and the second-stage flap valve 6, the weight of the waste materials is output to the BMS system for recording through the weighing sensor arranged on the weighing hopper 3. When the weighing signal of the weighing sensor reaches a preset value, the first-stage flap valve 4 is closed, the second-stage flap valve 6 is opened, and the material slides into the inclined chute 8 by means of the self gravity and then rolls into the rotary kiln 10 for combustion. Then the second-stage flap valve 6 is closed, the first-stage flap valve 4 is opened, the feeding conveyor 2 is started, and the next batch of feeding process begins. Impact force generated by falling of materials due to gravity and expansion amount generated by high temperature in each feeding process are absorbed by the damping device 7. The water cooling system 9 arranged on the inclined chute 8 utilizes the circulating cooling water to continuously take away the heat brought to the inclined chute 8 by the high-temperature flue gas.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A feed system for a rotary kiln hazardous waste incineration device is characterized in that: comprises a feeding conveyor (2), a weighing hopper (3), a first-stage flap valve (4), a sealed cabin (5), a second-stage flap valve (6) and an inclined chute (8); a feed hopper (1) is installed at the beginning end of the feeding conveyor (2), a discharge hopper (21) is installed at the tail end of the feeding conveyor (2), the outlet end of the discharge hopper (21) extends into the weighing hopper (3), and materials thrown into the feed hopper (1) are conveyed into the weighing hopper (3) through the discharge hopper (21) by the feeding conveyor (2); the first-stage flap valve (4) is arranged at the top feeding end of the sealed cabin (5), and the second-stage flap valve (6) is arranged at the bottom discharging end of the sealed cabin (5); weighing hopper (3), sealed cabin (5) and oblique chute (8) are sealing connection in proper order, form intermittent type formula feedstock channel, and the discharge end of oblique chute (8) inserts in the feed end of rotary kiln (10), and intermittent type formula feedstock channel vertically sets up between feeding conveyor (2) and rotary kiln (10), makes the material pass through intermittent type formula feedstock channel intermittent type and carry and slide in rotary kiln (10).

2. The feeding system for a rotary kiln hazardous waste incineration device as claimed in claim 1, wherein: and the intermittent feeding channel is provided with a vibration damper (7), and the vibration damper (7) is arranged between the outlet end of the second-stage flap valve (6) and the inlet end of the inclined chute (8).

3. The feeding system for a rotary kiln hazardous waste incineration device according to claim 1 or 2, characterized in that: the inclined chute (8) is composed of a vertical section (81) connected with the second-stage flap valve (6) and an inclined section (82) with the end part inserted into the rotary kiln (10), a water-cooling jacket (9) is arranged between the inner wall and the outer wall of the vertical section (81) and the inclined section (82), circulating cooling water is arranged in the water-cooling jacket (9), and the circulating cooling water circularly flows in a preset flow channel in the water-cooling jacket (9).

4. The feeding system for a rotary kiln hazardous waste incineration device as claimed in claim 3, wherein: the water-cooling jacket (9) is formed by splicing a plurality of heat exchange plates, a liquid outlet (83) is formed in the bottom of the inclined section (82) of the inclined chute (8), the liquid outlet (83) is located outside the rotary kiln (10), and the liquid outlet in the bottom of the heat exchange plate is connected to the liquid outlet (83) of the inclined section (82).

5. The feeding system for a rotary kiln hazardous waste incineration device as claimed in claim 3, wherein: the inclined angle between the inclined section (82) of the inclined chute (8) and the horizontal plane is 45-75 degrees.

6. The feeding system for a rotary kiln hazardous waste incineration device according to claim 4, wherein: the inclined angle between the inclined section (82) of the inclined chute (8) and the horizontal plane is 45-75 degrees.

7. The feeding system for a rotary kiln hazardous waste incineration device according to claim 1 or 2, characterized in that: the inclined chute (8) is provided with an access door (84), and the inclined chute (8) is provided with a plurality of steam cleaning interfaces (85).

8. The feeding system for a rotary kiln hazardous waste incineration device as claimed in claim 1, wherein: the volume of the weighing hopper (3) is larger than that of the discharge hopper (21) of the feeding conveyor (2), the volume of the feeding hopper (1) is larger than that of the grab bucket, and the inclination angle of the feeding hopper (1) is not less than 60 degrees.

9. The feeding system for a rotary kiln hazardous waste incineration device according to claim 1 or 8, characterized in that: a blockage clearing opening (22) is arranged on a discharge hopper (21) of the feeding conveyor (2).

10. The feeding system for a rotary kiln hazardous waste incineration device according to claim 1 or 8, characterized in that: the end of the feeding conveyor (2) is provided with a shaping baffle plate (23), the shaping baffle plate (23) is composed of a baffle plate and a roller wheel which are arranged at the inlet end of the discharging hopper (21), and the material is rolled by the baffle plate and the roller wheel of the shaping baffle plate (23) and then enters the discharging hopper (21) from the feeding conveyor (2).