A hazardous waste incineration feed apparatus and method of use thereof

Abstract

The present application relates to hazardous waste disposal technical field, specifically a kind of hazardous waste incineration disposal feed device, comprising: feed bin;Stirring mechanism, the stirring mechanism is installed in feed bin interior;Feed channel, the feed channel is connected in the bottom end of feed bin;Propelling mechanism, the propelling mechanism is installed in feed channel interior;Feed pipeline, the feed pipeline is connected at the export position of feed channel;Blocking mechanism, the blocking mechanism is movably installed in feed pipeline interior, the blocking mechanism is arranged to cause automatic one-way valve effect in feed pipeline interior;And pneumatic mechanism, the pneumatic mechanism is connected in one side in feed pipeline interior;The hazardous waste incineration disposal feed device of the application can avoid the deposition of hazardous waste to be treated in each sealed conveying pipeline by structural improvement design, and the sealed conveying pipeline interior always maintains self-cleaning function.

Description

Technical Field

[0001] This invention relates to the field of hazardous waste disposal technology, specifically a hazardous waste incineration feeding device and its usage method. Background Technology

[0002] Hazardous waste refers to waste that is listed in the National Hazardous Waste List or identified as having hazardous characteristics according to the national hazardous waste identification standards and methods. Hazardous waste also includes chemical tablets that are highly toxic and corrosive. Extra care must be taken in the disposal of these chemical wastes. Incineration is one way to dispose of these chemical wastes.

[0003] Patent application CN 207132355 U discloses a cyanide incineration feeding device, comprising: a sealed storage tank for storing cyanide; an electric screw conveyor, the inlet of which is connected to the outlet of the storage tank via a feed pipe; one end of the feed pipe being connected to the outlet of the electric screw conveyor and the other end to the incineration system; and a compressed air pipeline, one end of which is connected to one end of the feed pipe.

[0004] The cyanide incineration feeding device transports cyanide to one end of the feeding pipeline via the electric screw conveyor, and introduces compressed air into the compressed air pipeline to purge the cyanide into the incineration system. This solves the technical problem that powdered cyanide is difficult to feed, and the feeding is clean and residue-free, greatly reducing the risk of cyanide leakage.

[0005] However, this cyanide incineration feeding device also has certain drawbacks. For example, firstly, the cyanide temporarily stored in the storage tank is fed by gravity. Over time, sedimentation occurs, blocking the discharge channel. Furthermore, some cyanide adheres to the inner wall of the storage tank, requiring regular cleaning. Secondly, while an electric screw conveyor transports the cyanide, after the conveyor stops operating, a significant amount of cyanide accumulates on its uniquely shaped blades. First, the spiral conveyor blades are difficult to clean manually and require separate disassembly, which is quite troublesome. Second, when cyanide is blown into the combustion furnace by compressed air, the high-temperature hot air generated during combustion will flow back after the air supply is stopped. This will cause some of the hot air and toxic substances generated during combustion to flow back into the compression pipeline. Therefore, a valve needs to be installed at the connection between the feeding pipeline and the combustion furnace. If it is a manual valve, it needs to be manually operated to close the valve after the feeding is stopped. If it is an electric valve, an additional power supply mechanism is required, which increases energy consumption.

[0006] In view of the problems in the background art mentioned above, the present invention aims to provide a hazardous waste incineration feeding device and its usage method. Summary of the Invention

[0007] The purpose of this invention is to provide a hazardous waste incineration feeding device and its usage method to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A hazardous waste incineration feeding device, the hazardous waste incineration feeding device comprising:

[0010] A feed hopper, used for temporarily storing hazardous waste to be incinerated;

[0011] A stirring mechanism is installed inside the feeding hopper. The stirring mechanism is used to stir the hazardous waste temporarily stored inside the feeding hopper to prevent the material from settling and blocking the discharge channel. It can also scrape and clean the hazardous waste adhering to the inner wall of the feeding hopper. In addition, it can discharge the stirred hazardous waste at intervals and in a quantitative manner.

[0012] The feed chute is connected to the bottom of the feed hopper and is used to temporarily store hazardous waste discharged from the feed hopper.

[0013] The propulsion mechanism is installed inside the feed channel. The propulsion mechanism is used to push and discharge the hazardous waste temporarily stored inside the feed channel at intervals, and can also scrape and clean the hazardous waste adhering to the inner wall of the feed channel.

[0014] The feed pipe is connected to the outlet of the feed channel, and the feed pipe is set at the point where it connects to the outlet of the feed channel at an arc-shaped bend.

[0015] A blocking mechanism, movably installed inside the feed pipe, acts as an automatic check valve within the feed pipe; and

[0016] A pneumatic mechanism is connected to one side of the feed pipe, and the pneumatic mechanism is used to simultaneously introduce high-pressure air into two different directions inside the feed pipe.

[0017] As a further aspect of the present invention: the stirring mechanism includes:

[0018] A drive motor is installed at the upper end of the feed hopper;

[0019] A rotating shaft is located below the output end of the drive motor and extends into both the feed hopper and the discharge pipe.

[0020] The stirring racks are arranged in a staggered manner on the rotating shaft; and

[0021] The spiral conveyor blades are located inside the discharge pipe at the position of the rotating shaft.

[0022] As a further embodiment of the present invention: a scraper is installed on one side of the mixing rack, and the scraper is fitted to the shape of the inner wall of the feeding hopper; the scraper includes a scraper body, a guide slope is provided on one side surface of the scraper body, and a mounting frame is connected to one end of the scraper body, and mounting holes are provided on both the mounting frame and the scraper body.

[0023] As a further aspect of the present invention: the propulsion mechanism includes:

[0024] The push block is slidably installed inside the feed channel;

[0025] A movable rod, located on one side of the propulsion block;

[0026] A push plate, located on one side of the movable rod that passes through the inside of the feed channel;

[0027] An electric actuator, said electric actuator being mounted on one side of a push plate; and

[0028] An output motor is mounted on one side of the electric push rod.

[0029] As a further aspect of the present invention: a movable cavity is provided in the middle of the feed pipe, and the feed pipe is connected to a sleeve at the lower end of the movable cavity; the blocking mechanism is movably installed between the movable cavity and the sleeve.

[0030] As a further aspect of the present invention: the blocking mechanism includes:

[0031] A pneumatic valve, wherein the pneumatic valve is slidably mounted inside the movable cavity;

[0032] A movable push rod is located at the lower middle end of the pneumatic valve;

[0033] A sealing partition, wherein the sealing partition is installed and fixed inside the sleeve, and a hole is provided in the middle of the sealing partition for the passage of a movable push rod; and

[0034] A compression spring is fitted onto the portion of the movable push rod located between the lower end of the pneumatic valve and the upper end of the sealing partition.

[0035] As a further aspect of the present invention: the pneumatic mechanism includes:

[0036] Roots blower, which generates high-pressure airflow after being connected to a power source;

[0037] An air supply pipe, one end of which is connected to the output end of a Roots blower, and the other end of which is connected to one side of a feed pipe; and

[0038] The bronchus has one end connected to the gas delivery tube and the other end connected to the top of the active cavity.

[0039] The method of using the above-mentioned hazardous waste incineration feeding device includes the following steps:

[0040] 1. Hazardous waste temporarily stored inside the feed hopper is transported to the feed channel in quantitative quantities at intervals through a set mixing mechanism;

[0041] 2. Hazardous waste entering the feed duct is pushed out into the feed pipeline by the installed propulsion mechanism;

[0042] Third, after the hazardous waste enters the feed pipe, the pneumatic mechanism is activated. The pneumatic mechanism generates a high-pressure airflow, which on the one hand pushes the blocking mechanism to open the internal channel of the feed pipe, and on the other hand pushes the hazardous waste that has entered the feed pipe into the combustion furnace for combustion.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] The hazardous waste incineration feeding device described above has the following advantages through its structural improvement design:

[0045] First, by installing a stirring mechanism inside the feeding hopper, which is equipped with a scraper, the stirring mechanism can stir and mix the hazardous waste deposited inside the feeding hopper to prevent the hazardous waste from accumulating and blocking the discharge pipe. At the same time, the scraper can scrape and clean the inner wall of the feeding hopper. In addition, the stirring mechanism also includes a screw conveyor for quantitative discharge of hazardous waste inside the feeding hopper.

[0046] Second, the propulsion mechanism uses the sliding displacement of the push block to discharge material, which can avoid the deposition of most hazardous waste on the inner wall of the feed channel, and the push block can also achieve self-cleaning of the inner wall of the feed channel.

[0047] Third, by installing a blocking mechanism, the blocking mechanism can automatically block the inside of the feeding pipeline connected to the combustion furnace after the feeding stops, preventing the backflow of polluted hot air generated during combustion in the combustion furnace; moreover, the operation of the blocking mechanism is caused by the high-pressure airflow diversion generated by the pneumatic mechanism, which can divert the airflow used for feeding for other purposes, realizing the dual use of air kinetic energy, with a high degree of automation and reduced energy consumption. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0049] Figure 1 This is a schematic diagram of a hazardous waste incineration feeding device according to an embodiment of the present invention.

[0050] Figure 2 This is a side view of the installation of the feed channel and the propulsion block in a hazardous waste incineration feeding device according to an embodiment of the present invention.

[0051] Figure 3 This is a schematic diagram of the scraper structure of a hazardous waste incineration feeding device according to an embodiment of the present invention.

[0052] In the diagram: 1-Drive motor, 2-Sealing cover, 3-Scraper, 4-Agitator, 5-Feed hopper, 6-Rotating shaft, 7-Discharge pipe, 8-Screw conveyor blade, 9-Feed channel, 10-Output motor, 11-Electric push rod, 12-Push plate, 13-Moving rod, 14-Propeller block, 15-Roots blower, 16-Air supply pipe, 17-Feed pipeline, 18-Branch pipe, 19-Moving chamber, 20-Pneumatic valve, 21-Compression spring, 22-Sleeve, 23-Sealing partition, 24-Moving push rod, 25-Guide slope, 26-Mounting hole, 27-Mounting bracket. Detailed Implementation

[0053] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0054] Example

[0055] Please see Figure 1 The present invention provides a hazardous waste incineration feeding device, which includes:

[0056] Feed hopper 5, which is used to temporarily store hazardous waste to be burned;

[0057] A stirring mechanism is installed inside the feed hopper 5. The stirring mechanism is used to stir the hazardous waste temporarily stored inside the feed hopper 5 to prevent the material from settling and blocking the discharge channel. At the same time, it can also scrape and clean the hazardous waste adhering to the inner wall of the feed hopper 5, and discharge the stirred hazardous waste at intervals and in a quantitative manner.

[0058] Feed channel 9 is connected to the bottom of feed bin 5 and is used to temporarily store hazardous waste discharged from feed bin 5;

[0059] The propulsion mechanism is installed inside the feed channel 9. The propulsion mechanism is used to push and discharge the hazardous waste temporarily stored inside the feed channel 9 at intervals. On the other hand, it can also scrape and clean the hazardous waste adhering to the inner wall of the feed channel 9 to prevent the accumulation of hazardous waste on the inner wall and to prevent corrosion of the inner wall of the feed channel 9.

[0060] The feed pipe 17 is connected to the outlet of the feed channel 9. The feed pipe 17 is set at the arc-shaped corner where it connects to the outlet of the feed channel 9. The feed pipe 17 is used to guide the hazardous waste into the combustion furnace for combustion.

[0061] A blocking mechanism is movably installed inside the feed pipe 17. This blocking mechanism acts as a one-way valve inside the feed pipe 17, preventing high-temperature hot air and other harmful impurities generated inside the combustion furnace from flowing back and damaging the feed pipe 17 when feeding into the combustion furnace is stopped.

[0062] A pneumatic mechanism is connected to one side of the inside of the feed pipe 17. The pneumatic mechanism is used to simultaneously introduce high-pressure air into the feed pipe 17 in two different directions. The high-pressure air can push the hazardous waste entering the feed pipe 17 into the combustion furnace and also achieve a self-cleaning effect on the inner wall surface of the feed pipe 17 to prevent the accumulation of hazardous waste on the inner wall of the feed pipe 17. On the other hand, it can also pneumatically drive the blocking mechanism to open the internal channel of the feed pipe 17, thereby smoothly transporting the hazardous waste into the combustion furnace.

[0063] In an embodiment of the present invention, when the hazardous waste incineration feeding device is used, the stirring mechanism installed inside the feeding hopper 5 is activated, and the stirring mechanism operates to push the hazardous waste temporarily stored inside the feeding hopper 5 into the feeding channel 9; after the hazardous waste is pushed into the feeding channel 9, the propulsion mechanism installed inside the feeding channel 9 is activated, and the propulsion mechanism operates to push the hazardous waste entering the feeding channel 9 into the feeding pipeline 17.

[0064] After the hazardous waste is pushed into the feed pipe 17, the pneumatic mechanism is powered on. The pneumatic mechanism creates a high-pressure airflow inside the feed pipe 17. The high-pressure airflow inside the feed pipe 17 can push the hazardous waste that has entered into the feed pipe 17 into the combustion furnace for combustion, and can also push the blocking mechanism to open the feed pipe 17, so that the hazardous waste can flow inside the feed pipe 17.

[0065] In one embodiment of the present invention, the upper left and right sides of the feeding hopper 5 are provided with feeding ports, and sealing caps 2 are provided at the feeding port positions; the feeding ports are used to transport hazardous waste to be treated into the feeding hopper 5, while the matching sealing caps 2 ensure the airtightness of the entire feeding hopper 5, preventing the hazardous waste that seeps into the feeding hopper 5 from contacting the outside air and causing moisture oxidation; the bottom of the feeding hopper 5 is provided with a discharge pipe 7, the lower end of the discharge pipe 7 is connected to the inside of the feeding channel 9, and the discharge pipe 7 is used to guide the hazardous waste discharged from the inside of the feeding hopper 5 into the inside of the feeding channel 9;

[0066] In one embodiment of the present invention, the stirring mechanism installed inside the feed hopper 5 includes:

[0067] Drive motor 1 is installed on the upper end of the feed hopper 5 and is used to provide kinetic energy for the operation of the entire stirring mechanism.

[0068] The rotating shaft 6 is located below the output end of the drive motor 1 and extends into both the feed hopper 5 and the discharge pipe 7. The rotating shaft 6 is used to receive the kinetic energy output by the drive motor 1 and simultaneously drive the entire stirring mechanism to operate.

[0069] A mixing rack 4, which is vertically staggered on the rotating shaft 6, is installed to rotate simultaneously with the rotating shaft 6, so as to mix and homogenize the hazardous waste entering the feed hopper 5 and prevent the hazardous waste from settling inside the feed hopper 5; and

[0070] The spiral conveying blade 8 is located inside the discharge pipe 7 of the rotating shaft 6. The spiral conveying blade 8 is used to transport the hazardous waste temporarily stored inside the rotating shaft 6 to the feed channel 9 in an orderly and quantitative manner when the rotating shaft 6 rotates.

[0071] In an embodiment of the present invention, when the stirring mechanism is used, the drive motor 1 is started, and the drive motor 1 operates to output kinetic energy to the rotating shaft 6 so that the rotating shaft 6 rotates. When the rotating shaft 6 rotates, it will simultaneously drive the stirring frame 4 and the spiral conveying blade 8 installed on the rotating shaft 6 to rotate. The rotating stirring frame 4 will stir the hazardous waste inside the feed hopper 5, while the rotating spiral conveying blade 8 will be used to discharge hazardous waste at intervals and in quantitative quantities.

[0072] Please see Figure 1 and Figure 3In an embodiment of the present invention, a scraper 3 is installed on one side of the mixing rack 4, and the scraper 3 is fitted with the shape of the inner wall of the feeding bin 5. The scraper 3 is used to rotate simultaneously when the mixing rack 4 rotates. The rotating scraper 3 can scrape off and clean the hazardous waste adhering to the inner wall of the feeding bin 5, so as to avoid some hazardous waste adhering to the inner wall of the feeding bin 5 and causing corrosion to the inner wall of the feeding bin 5 after long-term use.

[0073] The scraper 3 includes a scraper body, and a guide slope 25 is provided on one side of the scraper body. The guide slope 25 can reduce the overall material of the scraper 3 and can also quickly guide the material passing through the surface of the scraper body when the scraper 3 rotates, thereby reducing the resistance of the scraper 3. At the same time, a mounting bracket 27 is connected to one end of the scraper body. Both the mounting bracket 27 and the scraper body are provided with mounting holes 26, which facilitate the quick installation of the scraper 3.

[0074] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the propulsion mechanism includes:

[0075] The pusher block 14 is slidably installed inside the feed channel 9. The pusher block 14 slides and moves inside the feed channel 9 to push the hazardous waste entering inside the feed channel 9 into the feed pipe 17.

[0076] Movable rod 13, located on one side of the push block 14, is used to push the push block 14 to slide within the feed channel 9.

[0077] Push plate 12, the push plate 12 is located on one side of the movable rod 13 that passes through the inside of the feed channel 9. The push plate 12 is used to block one side of the movable rod 13 and to control the sliding distance position of the movable rod 13.

[0078] Electric push rod 11, which is mounted on one side of push plate 12, is used to push push plate 12 to slide; and

[0079] An output motor 10 is installed on one side of the electric push rod 11. The installed output motor 10 is used to output kinetic energy to the electric push rod 11 to push the electric push rod 11 to move.

[0080] In an embodiment of the present invention, the shape of the push block 14 fits the internal shape of the feed channel 9, and both the upper and lower ends of the push block 14 are provided with protrusions, while both the upper and lower ends of the feed channel 9 are provided with grooves; in this way, it is ensured that the push block 14 is not prone to positional displacement when it slides inside the feed channel 9.

[0081] When the propulsion mechanism is used, the output motor 10 is started, and the output motor 10 operates to transmit kinetic energy to the electric push rod 11, which pushes the push plate 12 to slide. When the push plate 12 slides, the movable rod 13 connected to one end of the push plate 12 pushes the propulsion block 14 to slide inside the feed channel 9. In this way, on the one hand, the hazardous waste entering the feed channel 9 can be pushed into the feed pipe 17 in a spaced manner, and on the other hand, the inner wall of the feed channel 9 can be cleaned to prevent hazardous waste from accumulating on the inner wall of the feed channel 9.

[0082] At the same time, compared with the traditional method of conveying materials by spiral conveyor blades, this simple and direct method of pushing displacement by propeller blocks can greatly reduce the amount of hazardous waste to be treated accumulating inside the conveying pipeline.

[0083] Please see Figure 1 In one embodiment of the present invention, a movable cavity 19 is provided at the middle position of the feed pipe 17, and the feed pipe 17 is connected to the sleeve 22 at the lower end of the movable cavity 19; the blocking mechanism is movably installed between the movable cavity 19 and the sleeve 22; wherein, the blocking mechanism includes:

[0084] Pneumatic valve 20, which is slidably installed inside the movable cavity 19, is used to open and close the inside of the feed pipe 17;

[0085] The movable push rod 24 is located at the lower middle end of the pneumatic valve 20. The movable push rod 24 is used to push the pneumatic valve 20 to slide up and down inside the movable cavity 19.

[0086] Sealing partition 23, which is installed and fixed inside sleeve 22, has a hole in the middle for the movable push rod 24 to pass through. The sealing partition 23 limits the sliding displacement of the movable push rod 24, preventing positional displacement during its vertical sliding motion.

[0087] Compression spring 21 is fitted on the part of the movable push rod 24 located between the lower end of the pneumatic valve 20 and the upper end of the sealing partition 23. The compression spring 21 generates elastic force through deformation to automatically control the pneumatic valve 20 to move upward and block the feed pipe 17.

[0088] In an embodiment of the present invention, when the pneumatic mechanism supplies air to push the waste material entering the feed pipe 17, part of the high-pressure airflow enters from the upper position of the movable chamber 19 and causes a downward starting pressure on the pneumatic valve 20, which can cause the pneumatic valve 20 to slide downward inside the movable chamber 19 to open the feed pipe 17 to allow the waste material to pass through.

[0089] When the pneumatic mechanism stops supplying air, the pneumatic valve 20 automatically returns to its initial state under the elastic force generated by the deformation of the compression spring 21, which is used to seal the inside of the feed pipe 17 and prevent the exhaust gas generated during combustion in the combustion furnace from flowing back into the inside of the feed pipe 17.

[0090] In one embodiment of the present invention, the pneumatic mechanism includes:

[0091] Roots blower 15, which is used to generate high-pressure airflow after being connected to a power source;

[0092] Air supply pipe 16, one end of which is connected to the output end of the Roots blower 15, and the other end of which is connected to one side of the feed pipe 17, is used to transport the high-pressure airflow generated by the Roots blower 15 into the feed pipe 17; and

[0093] A bronchus 18 is provided, with one end connected to the gas delivery pipe 16 and the other end connected to the top of the movable chamber 19. The bronchus 18 is used to divert a portion of the high-pressure airflow entering from the gas delivery pipe 16 from the top of the movable chamber 19 into the feed pipe 17, and to push the pneumatic valve 20 to slide within the feed pipe 17.

[0094] In an embodiment of the present invention, when the pneumatic mechanism is used, the Roots blower 15 is started, and the Roots blower 15 generates a high-pressure airflow, which is delivered to the inside of the feed pipe 17 from one side of the feed pipe 17 and the top of the active chamber 19 through the air supply pipe 16 and the branch pipe 18, respectively, to drive the blocking mechanism to open the feed pipe 17 and to pneumatically transport and discharge the hazardous waste that has entered the feed pipe 17.

[0095] The method of using the above-mentioned hazardous waste incineration feeding device includes the following steps:

[0096] 1. Hazardous waste temporarily stored inside the feed hopper 5 is transported to the feed channel 9 at intervals and in quantitative quantities through a set mixing mechanism;

[0097] 2. Hazardous waste entering the feed duct 9 is pushed out into the feed pipe 17 by the installed propulsion mechanism;

[0098] 3. After the hazardous waste enters the feed pipe 17, the pneumatic mechanism is activated. The pneumatic mechanism generates a high-pressure airflow, which on the one hand pushes the blocking mechanism to open the internal channel of the feed pipe 17, and on the other hand pushes the hazardous waste that has entered the feed pipe 17 into the combustion furnace for combustion.

[0099] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can be internal connections between two components.

[0100] For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances; the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeding device for hazardous waste incineration, characterized in that, The hazardous waste incineration feeding device includes: Feed silo (5), which is used to temporarily store hazardous waste to be incinerated; The stirring mechanism is installed inside the feed hopper (5); the stirring mechanism is used to stir the hazardous waste temporarily stored inside the feed hopper (5) to prevent the material from settling and blocking the discharge channel; at the same time, it can also scrape and clean the hazardous waste adhering to the inner wall of the feed hopper (5), and in addition, it can discharge the stirred hazardous waste at intervals in a quantitative manner. Feed channel (9), which is connected to the bottom of the feed bin (5), is used to temporarily store hazardous waste discharged from the feed bin (5); The propulsion mechanism is installed inside the feed channel (9). The propulsion mechanism is used to push the hazardous waste temporarily stored inside the feed channel (9) out at intervals, and can also scrape and clean the hazardous waste adhering to the inner wall of the feed channel (9). The feed pipe (17) is connected to the outlet of the feed channel (9), and the feed pipe (17) and the outlet of the feed channel (9) are connected at an arc-shaped corner; A blocking mechanism is movably installed inside the feed pipe (17), and the blocking mechanism acts as an automatic one-way valve inside the feed pipe (17); wherein, a movable cavity (19) is opened in the middle of the feed pipe (17), and the feed pipe (17) is connected to the sleeve (22) at the lower end of the movable cavity (19); the blocking mechanism is movably installed between the movable cavity (19) and the sleeve (22); The blocking mechanism includes: A pneumatic valve (20) is slidably mounted inside the movable cavity (19); Movable push rod (24), the movable push rod (24) is located at the lower middle end of the pneumatic valve (20); A sealing partition (23) is installed and fixed inside the sleeve (22), and a hole is provided in the middle of the sealing partition (23) for the passage of the movable push rod (24); and Compression spring (21), said compression spring (21) being fitted onto the portion of the movable push rod (24) located between the lower end of the pneumatic valve (20) and the upper end of the sealing partition (23); and The pneumatic mechanism is connected to one side of the inside of the feed pipe (17). The pneumatic mechanism is used to simultaneously introduce high-pressure air into the inside of the feed pipe (17) in two different directions. Pneumatic mechanisms include: Roots blower (15), which is used to generate high-pressure airflow after being connected to the power supply; An air supply pipe (16) is provided, one end of which is connected to the output end of a Roots blower (15), and the other end of which is connected to one side of a feed pipe (17); and The bronchus (18) has one end connected to the gas delivery tube (16) and the other end connected to the top of the active cavity (19).

2. The hazardous waste incineration feeding device according to claim 1, characterized in that: The stirring mechanism includes: A drive motor (1) is installed at the upper end of the feed hopper (5); The rotating shaft (6) is located at the lower end of the output end of the drive motor (1) and extends into both the feed hopper (5) and the discharge pipe (7). The stirring rack (4) is staggered vertically on the rotating shaft (6); and The spiral conveying blade (8) is located inside the discharge pipe (7) of the rotating shaft (6).

3. The hazardous waste incineration feeding device according to claim 2, characterized in that: A scraper (3) is installed on one side of the mixing rack (4), and the scraper (3) is fitted to the inner wall of the feed hopper (5). The scraper (3) includes a scraper body, and a guide slope (25) is provided on one side of the scraper body. A mounting frame (27) is also connected to one end of the scraper body. Mounting holes (26) are provided on the mounting frame (27) and the scraper body.

4. The hazardous waste incineration feeding device according to claim 1, characterized in that: The propulsion mechanism includes: A push block (14) is slidably installed inside the feed channel (9); Movable rod (13), said movable rod (13) is located on one side of the push block (14); Push plate (12), the push plate (12) is located on one side where one end of the movable rod (13) passes through the inside of the feed channel (9); An electric actuator (11), said electric actuator (11) being mounted on one side of a push plate (12); and Output motor (10) is located on one side of electric push rod (11).

5. A method of using a hazardous waste incineration feeding device as described in any one of claims 1-4, characterized in that, Includes the following steps:

1. Hazardous waste temporarily stored in the feed hopper (5) is transported to the feed channel (9) at intervals and in quantitative quantities through the set mixing mechanism; 2. Hazardous waste entering the feed channel (9) is pushed out into the feed pipeline (17) by the installed propulsion mechanism; 3. After the hazardous waste enters the feed pipe (17), the pneumatic mechanism is activated. The pneumatic mechanism generates a high-pressure airflow, which on the one hand drives the blocking mechanism to open the internal channel of the feed pipe (17), and on the other hand pushes the hazardous waste that has entered the feed pipe (17) into the incinerator for incineration.

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