A combined gasification treatment device for domestic waste

Abstract

The present invention discloses a combined gasification treatment device for domestic waste, which relates to the field of gasification treatment devices. The device includes a pyrolysis gasification furnace and a conveying channel arranged on the outer surface of the pyrolysis gasification furnace. The outer surface of the pyrolysis gasification furnace is provided with a feed port for connecting the pyrolysis gasification furnace and the conveying channel. A feeding hopper is arranged on the upper surface of the conveying channel, and a pushing block for moving the waste is slidably arranged inside the conveying channel. In this combined gasification treatment device for domestic waste, by arranging a cleaning plate inside the conveying channel and providing an outlet for waste recycling at the inner bottom of the conveying channel, when the pushing block resets, the waste accumulated inside the conveying channel can be pushed to the outlet. When the pushing block resets, the cleaning plate can clean the side surface of the pushing block, preventing some waste from accumulating inside the conveying pipeline and affecting the smooth movement of the pushing block, and the waste at the cleaning position can be recycled to improve the waste treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of gasification treatment equipment, and specifically to a combined domestic waste gasification treatment equipment. Background Art

[0002] For domestic waste and other garbage in waste treatment plants, a pyrolysis gasification furnace and a secondary combustion furnace are used to pyrolyze and gasify the garbage, and then equipment such as an acid removal tower, a bag filter, and a purifier are used to purify the gas generated after the garbage is burned, so that the flue gas discharged into the external environment will not pollute the external environment.

[0003] A conveying channel is arranged on one side of the pyrolysis gasification furnace, a feeding hopper is arranged at the conveying channel, and a pushing block for pushing the garbage into the pyrolysis gasification furnace is arranged inside the conveying channel. However, during the process of pushing the garbage into the pyrolysis gasification furnace by the pushing block, the inside of the conveying channel will be blocked by the garbage, resulting in the movement path of the pushing block being blocked and affecting the stable conveying of the garbage.

[0004] The main reason for the above problems is that there is no device for quantitatively feeding the garbage at the bottom of the feeding hopper, so that the garbage will be continuously fed into the inside of the conveying channel. When the pushing block moves to a position close to the feeding port of the pyrolysis gasification furnace, the garbage inside the feeding hopper will continue to enter the inside of the conveying channel. When the pushing block moves in the direction away from the feeding port of the pyrolysis gasification furnace, that is, when resetting, the garbage entering the inside of the conveying channel will hinder the reset path of the pushing block, and the garbage located on the reset path of the pushing block cannot enter the inside of the pyrolysis gasification furnace through the pushing block, resulting in a large amount of garbage accumulating inside the conveying channel, and there is no device for garbage recycling inside the conveying channel, which affects the normal operation of the equipment inside the conveying channel. In view of the above situation, we propose a combined domestic waste gasification treatment equipment. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the invention discloses a combined domestic waste gasification treatment equipment to solve the problem that a conveying channel is arranged on one side of the pyrolysis gasification furnace, a feeding hopper is arranged at the conveying channel, and a pushing block for pushing the garbage into the pyrolysis gasification furnace is arranged inside the conveying channel. However, during the process of pushing the garbage into the pyrolysis gasification furnace by the pushing block, the inside of the conveying channel will be blocked by the garbage, resulting in the movement path of the pushing block being blocked and affecting the stable conveying of the garbage as mentioned in the above background art.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A combined gasification treatment device for domestic waste, comprising: a pyrolysis gasification furnace and a conveying channel arranged on the outer surface of the pyrolysis gasification furnace. An inlet for connecting the pyrolysis gasification furnace and the conveying channel is provided on the outer surface of the pyrolysis gasification furnace. A feeding hopper is arranged on the upper surface of the conveying channel. A pushing block for garbage movement is slidably arranged inside the conveying channel. A recycling mechanism is arranged inside the conveying channel, and the recycling mechanism is used for recycling the residual garbage inside the conveying channel;

[0009] The recycling mechanism includes a connection box arranged on the upper surface of the conveying channel. A toothed plate is slidably arranged inside the connection box. A cleaning plate is arranged at the bottom end of the toothed plate. The cleaning plate is slidably arranged inside the conveying channel, and one end of the cleaning plate abuts against one side of the pushing block. An outlet for garbage recycling is provided on the lower surface of the conveying channel.

[0010] Preferably, a controller is arranged on the top of the connection box. An electric telescopic rod is arranged on the lower surface of the controller. The bottom end of the electric telescopic rod is fixedly connected to the upper surface of the toothed plate. A limiting hole is provided at the inner bottom of the connection box. One end of the toothed plate extends into the conveying channel through the limiting hole.

[0011] Preferably, a recycling channel is arranged on the lower surface of the outlet. A collection box for centralized recycling and collection of garbage is arranged at the bottom end of the recycling channel.

[0012] Preferably, a communication port is provided on the upper surface of the conveying channel. The bottom end of the feeding hopper is connected to the communication port. A metering mechanism for quantitative feeding of the feeding hopper is arranged inside the connection box.

[0013] Preferably, the metering mechanism includes a baffle plate slidably arranged inside the connection box. The baffle plate can be slidably arranged at the communication port. A threaded plate is fixedly arranged at one end of the baffle plate. A threaded rod for driving the threaded plate to move is arranged inside the connection box.

[0014] Preferably, a gear is arranged on the outer surface of the threaded rod. The outer surface of the gear meshes with the toothed plate. A limiting rod is arranged inside the connection box. One end of the threaded plate is sleeved on the outer surface of the limiting rod.

[0015] Preferably, a cylinder for driving the pushing block to move is arranged at one end of the conveying channel away from the pyrolysis gasification furnace. A support frame is arranged on the lower surface of the conveying channel. A feeding hopper is arranged at the bottom end of the pyrolysis gasification furnace.

[0016] Preferably, a drying zone, an anoxic carbonization zone, and a combustion zone are provided inside the pyrolysis gasification furnace. The combustion zone is close to the feed hopper, the drying zone is close to the feed inlet, and the anoxic carbonization zone is located between the drying zone and the combustion zone.

[0017] Preferably, a secondary combustion furnace is provided outside the pyrolysis gasification furnace. An acid removal tower is provided on one side of the secondary combustion furnace, a bag filter is provided on one side of the acid removal tower, a purifier is provided on one side of the bag filter, an induced draft fan is provided on one side of the purifier, and a chimney is provided on one side of the induced draft fan.

[0018] Preferably, a set of conveying pipes are respectively provided between the pyrolysis gasification furnace, the secondary combustion furnace, the acid removal tower, the bag filter, the purifier, the induced draft fan, and the chimney.

[0019] The present invention discloses a combined gasification treatment device for domestic waste, and the beneficial effects thereof are as follows:

[0020] 1. For this combined gasification treatment device for domestic waste, by providing a cleaning plate inside the conveying channel and opening an outlet for garbage recycling at the inner bottom of the conveying channel, when the push block resets, the garbage accumulated inside the conveying channel can be pushed to the outlet. Moreover, when the push block resets, the cleaning plate can clean the side surface of the push block, preventing some garbage from accumulating inside the conveying pipeline and affecting the smooth movement of the push block, and the garbage at the cleaning position can be recycled, improving the garbage treatment efficiency.

[0021] 2. For this combined gasification treatment device for domestic waste, a connection box is provided above the conveying channel. A baffle is provided inside the connection box. The baffle moves along the outer surface of the threaded rod through the threaded plate provided at its position, enabling the baffle to block the communication port at the connection between the conveying channel and the feeding hopper. When the push block pushes a certain amount of garbage into the pyrolysis gasification furnace, the garbage inside the feeding hopper will not enter the inside of the conveying channel, preventing the conveying channel from being blocked by garbage and affecting the smooth sliding of the push block.

[0022] 3. For this combined gasification treatment device for domestic waste, the cleaning plate slides up and down through the toothed plate and the electric telescopic rod provided at the connection box. When the toothed plate slides up and down, the toothed plate will engage with the gear provided on the outer surface of the threaded rod, thereby driving the threaded rod to rotate. When moving the cleaning plate, the baffle can be driven simultaneously, that is, when the cleaning plate cleans one side of the block, the baffle blocks the communication port, and the operation is convenient and practical.

[0023] 4. For this combined gasification treatment device for domestic waste, when the garbage is fed into the inside of the conveying channel, some garbage will inevitably adhere to the inner side wall of the conveying channel. The push block fits with the inner side wall of the conveying channel, so that under the scraping and cleaning action of the push block, the garbage accumulated inside the conveying channel can be effectively cleaned. Brief Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a sectional view of the internal structure of the conveying channel of the present invention;

[0026] Figure 3 is a sectional view of the internal structure of the connection box of the present invention;

[0027] Figure 4 is a schematic diagram of the cleaning plate and baffle structure of the present invention;

[0028] Figure 5 is a schematic diagram of the threaded rod, toothed plate and push plate structure of the present invention;

[0029] Figure 6 For the present invention Figure 3 is an enlarged view of the structure at A in;

[0030] Figure 7 is a schematic diagram of the threaded rod, toothed plate and gear structure of the present invention;

[0031] Figure 8 is an exploded view of the baffle and threaded rod structure of the present invention;

[0032] Figure 9 is a schematic diagram of the outlet and recycling channel structure of the present invention;

[0033] Figure 10 is a schematic diagram of the recycling channel and collection box structure of the present invention;

[0034] Figure 11 is a plan view of the internal structure of the pyrolysis gasification furnace of the present invention.

[0035] In the figure: 1. Pyrolysis gasification furnace; 101. Secondary combustion furnace; 102. Acid removal tower; 103. Bag filter; 104. Purifier; 105. Induced draft fan; 106. Chimney; 107. Conveying pipe; 2. Conveying channel; 201. Support frame; 202. Feeding hopper; 203. Pusher block; 204. Cylinder; 3. Discharge hopper; 4. Feed inlet; 401. Drying area; 402. Anoxic carbonization area; 403. Combustion area; 501. Connection box; 502. Cleaning plate; 503. Toothed plate; 504. Electric telescopic rod; 505. Controller; 506. Communication port; 507. Outlet; 508. Recycling channel; 601. Baffle; 602. Threaded plate; 603. Threaded rod; 604. Limit rod; 605. Gear; 7. Collection box; 8. Limit hole. Detailed Description of the Invention

[0036] An embodiment of the present invention discloses a combined gasification treatment device for domestic waste, asFigures 1-11 As shown, to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention and by way of examples.

[0037] As Figures 1-11 Shown is a combined gasification treatment device for domestic waste, including a pyrolysis gasification furnace 1 and a conveying channel 2 provided on the outer surface of the pyrolysis gasification furnace 1. An inlet 4 for connecting the pyrolysis gasification furnace 1 and the conveying channel 2 is provided on the outer surface of the pyrolysis gasification furnace 1. A discharge hopper 3 is provided at the bottom end of the pyrolysis gasification furnace 1. A drying zone 401, an anoxic carbonization zone 402, and a combustion zone 403 are provided inside the pyrolysis gasification furnace 1. The combustion zone 403 is close to the discharge hopper 3, the drying zone 401 is close to the inlet 4, and the anoxic carbonization zone 402 is located between the drying zone 401 and the combustion zone 403. Garbage first enters the inside of the drying zone 401 through the inlet 4. The drying zone 401 can evaporate the moisture in the garbage. After the garbage is dried, it will enter the anoxic carbonization zone 402. The anoxic carbonization zone 402 can make the garbage soften under high-temperature conditions and can be carbonized under the extrusion of weight. After carbonization, they are almost all agglomerated into a whole, so that the garbage waiting to be burned at this time is almost all in a carbonized state. Then, the carbonized garbage enters the combustion zone 403 for combustion, and the waste residue generated after combustion is discharged from the discharge hopper 3. The main temperature range for garbage pyrolysis is 250°C - 650°C.

[0038] An afterburner 101 is arranged outside the pyrolysis gasifier 1. An acid scrubber 102 is arranged on one side of the afterburner 101. A bag filter 103 is arranged on one side of the acid scrubber 102. A purifier 104 is arranged on one side of the bag filter 103. An induced draft fan 105 is arranged on one side of the purifier 104. A chimney 106 is arranged on one side of the induced draft fan 105. A set of conveying pipes 107 are respectively arranged between the pyrolysis gasifier 1, the afterburner 101, the acid scrubber 102, the bag filter 103, the purifier 104, the induced draft fan 105 and the chimney 106. After the carbonaceous waste enters the combustion zone 403 and is heated and decomposed, combustible gases such as hydrogen, carbon monoxide, methane and other hydrocarbons, as well as liquids such as tar and solids such as carbon black are generated. The small-molecule combustible gases generated after gasification are transported to the inside of the afterburner 101 through a set of conveying pipes 107 for oxygen-enriched combustion. The combustion temperature of the afterburner 101 is controlled at 950°C to 1100°C, and the residence time of the flue gas is greater than 2 seconds, which can effectively control the synthesis of dioxins. After the temperature of the flue gas after combustion drops to about 200°C, it flows into the inside of the acid scrubber 102 through a set of conveying pipes 107. At this time, the flue gas contacts with calcium hydroxide and water sprayed into the inside of the acid scrubber 102, and harmful acidic gases in the flue gas can be removed. Then, it enters the inside of the bag filter 103 through a set of conveying pipes 107, effectively adsorbing harmful substances such as heavy metals and a small amount of dioxins in the flue gas. After being purified by the purifier 104 and meeting the standards for discharge, it can finally be directly discharged through the chimney 106. The overall flow path of the flue gas is mainly promoted by the induced draft fan 105.

[0039] A feeding hopper 202 is arranged on the upper surface of the conveying channel 2. The feeding hopper 202 is located at the upper part of one end of the conveying channel 2 far from the pyrolysis gasifier 1. A pushing block 203 for moving the garbage is slidably arranged inside the conveying channel 2. A cylinder 204 for driving the pushing block 203 to move is arranged at one end of the conveying channel 2 far from the pyrolysis gasifier 1. When the pushing block 203 is in the initial state, the pushing block 203 is located on one side of the outlet 507, and the pushing block 203 does not block the outlet 507. A support frame 201 is arranged on the lower surface of the conveying channel 2. A communication port 506 is opened on the upper surface of the conveying channel 2. The bottom end of the feeding hopper 202 is connected to the communication port 506. The garbage is fed into the inside of the conveying channel 2 through the feeding hopper 202, and then the cylinder 204 arranged at the cylinder 204 is started through the remote control device, so that the pushing block 203 feeds the garbage into the inside of the pyrolysis gasifier 1 through the feeding port 4.

[0040] A recycling mechanism is arranged inside the conveying channel 2. The recycling mechanism is used for recycling the residual garbage inside the conveying channel 2. The recycling mechanism includes a connection box 501 arranged on the upper surface of the conveying channel 2. A toothed plate 503 is slidably arranged inside the connection box 501. The length of the toothed plate 503 is greater than the length of the conveying channel 2. A cleaning plate 502 is arranged at the bottom end of the toothed plate 503. The cleaning plate 502 is slidably arranged inside the conveying channel 2, and one end of the cleaning plate 502 abuts against one side of the push block 203. An outlet 507 for garbage recycling is opened on the lower surface of the conveying channel 2. The two cleaning plates 502 are located directly above the outlet 507, and the two cleaning plates 502 abut against the side of the push block 203 close to the cylinder 204. The two cleaning plates 502 are not connected. The space between the two cleaning plates 502 can be used for the connection between the cylinder 204 and the push block 203. The outlet 507 is located between the cylinder 204 and the push block 203. A recycling channel 508 is arranged on the lower surface of the outlet 507. A collection box 7 for centralized recycling and collection of garbage is arranged at the bottom end of the recycling channel 508. The lower surface of the collection box 7 is in contact with the ground.

[0041] A controller 505 is arranged on the top of the connection box 501. An electric telescopic rod 504 is arranged on the lower surface of the controller 505. By remotely controlling the start of the controller 505, the controller 505 drives the electric telescopic rod 504 to extend or contract. The bottom end of the electric telescopic rod 504 is fixedly connected to the upper surface of the toothed plate 503. A limiting hole 8 is opened at the inner bottom of the connection box 501. One end of the toothed plate 503 extends into the conveying channel 2 through the limiting hole 8. Through the opened limiting hole 8, the movement track of the toothed plate 503 can be limited, and thus the movement track of the cleaning plate 502 can be limited.

[0042] Inside the connection box 501, a metering mechanism for quantitatively feeding the feeding hopper 202 is provided. The metering mechanism includes a baffle 601 slidably arranged inside the connection box 501. The baffle 601 is slidably arranged at the communication port 506. When the baffle 601 blocks the communication port 506, at this time, the feeding hopper 202 is not connected to the conveying channel 2. When the push block 203 moves towards the feeding port 4, no garbage will enter the inside of the conveying channel 2, avoiding the situation that when the push block 203 resets, the garbage is pushed to the cylinder 204 and accumulates inside the conveying channel 2. Moreover, it can also quantitatively feed the garbage into the conveying channel 2. One end of the baffle 601 is fixedly provided with a threaded plate 602. Inside the connection box 501, a threaded rod 603 for driving the threaded plate 602 to move is provided. Inside the connection box 501, a limiting rod 604 is provided. One end of the threaded plate 602 is sleeved on the outer surface of the limiting rod 604. By providing the limiting rod 604, when the threaded rod 603 rotates, the threaded plate 602 will not rotate annularly along with the threaded rod 603. A gear 605 is arranged on the outer surface of the threaded rod 603. The outer surface of the gear 605 meshes with the toothed plate 503. Through the meshing between the gear 605 and the toothed plate 503, the baffle 601 can be driven to move while driving the cleaning plate 502 to move.

[0043] In summary, in the initial state of the device, the push block 203 is located inside the conveying channel 2 near one end of the cylinder 204. At this time, the push block 203 does not obstruct the communication port 506 and the feeding port 4. In addition, the baffle 601 blocks the communication port 506, and the cleaning plate 502 is located at the bottom on one side of the push block 203.

[0044] Before feeding the garbage into the feeding hopper 202, first start the controller 505 arranged at the bottom of the connection box 501 through the remote control device, so that the controller 505 drives the electric telescopic rod 504 arranged there to extend, and then the toothed plate 503 arranged at the bottom end of the electric telescopic rod 504 moves towards the inside of the conveying channel 2. During the downward movement of the toothed plate 503, it meshes with the gear 605 arranged on the outer surface of the threaded rod 603, so that the threaded rod 603 rotates under the meshing of the toothed plate 503 and the gear 605.

[0045] Furthermore, when the threaded rod 603 rotates, the threaded plate 602 arranged on the outer surface of the threaded rod 603 slides along the outer surface of the threaded rod 603 under the action of thread connection, that is, the threaded plate 602 and the baffle 601 connected to one side of the threaded plate 602 move away from the communication port 506, so that the communication port 506 is directly exposed. During this process, the threaded plate 602 slides stably under the limitation of the limiting rod 604.

[0046] Further, after the communication port 506 is in an exposed state, auxiliary equipment such as a grab bucket can be used to load garbage into the interior of the feeding hopper 202, so that the garbage enters the interior of the conveying channel 2 through the communication port 506, and the garbage accumulates in the area between the communication port 506 of the conveying channel 2 and the feeding port 4.

[0047] Further, after a certain amount of garbage is stored in the interior of the conveying channel 2, the controller 505 provided at the bottom of the connection box 501 is started through a remote control device, so that the controller 505 drives the electric telescopic rod 504 provided therein to contract, and then the toothed plate 503 provided at the bottom end of the electric telescopic rod 504 moves towards the interior of the connection box 501. During the upward movement of the toothed plate 503, it meshes with the gear 605 provided on the outer surface of the threaded rod 603, so that the threaded rod 603 rotates under the meshing of the toothed plate 503 and the gear 605.

[0048] Further, when the threaded rod 603 rotates, the threaded plate 602 provided on the outer surface of the threaded rod 603 slides along the outer surface of the threaded rod 603 under the action of screw connection, that is, the threaded plate 602 and the baffle 601 connected to one side of the threaded plate 602 move towards the communication port 506, so that the communication port 506 is blocked. At this time, the garbage inside the feeding hopper 202 will not enter the interior of the conveying channel 2 through the communication port 506.

[0049] And at the same time, when the toothed plate 503 moves upward under the action of the electric telescopic rod 504, the cleaning plate 502 provided at the bottom end of the toothed plate 503 moves in the same way as the toothed plate 503. When the baffle 601 blocks the communication port 506, the cleaning plate 502 moves to the inner top of the conveying channel 2.

[0050] Further, after the communication port 506 is blocked by the baffle 601, the cylinder 204 provided at the conveying channel 2 is started through a remote control device, so that under the drive of the cylinder 204, the push block 203 moves towards the feeding port 4, and the push block 203 pushes the garbage into the interior of the pyrolysis gasification furnace 1 through the feeding port 4. At this time, the pyrolysis gasification furnace 1 can perform pyrolysis gasification operation on the garbage. The flue gas generated by pyrolysis gasification enters the interior of the secondary combustion furnace 101 through a group of conveying pipes 107 under the action of the induced draft fan 105 for secondary pyrolysis gasification, and then successively enters the interior of the acid scrubber 102, the bag filter 103 and the purifier 104 through a group of conveying pipes 107 under the action of the induced draft fan 105 to complete the purification of the flue gas. The purified flue gas can be directly discharged into the external environment through the chimney 106.

[0051] Further, when it is necessary to feed the garbage into the pyrolysis gasification furnace 1 again, the cylinder 204 provided at the conveying channel 2 can be started first through the remote control device. Under the drive of the cylinder 204, the pushing block 203 moves away from the feeding port 4. During the movement of the pushing block 203, the residual garbage inside the conveying channel 2 can be driven to move towards the outlet 507. When the pushing block 203 resets, part of the residual garbage falls into the outlet 507 and falls into the interior of the collection box 7 through the recovery channel 508 provided at the outlet 507.

[0052] Further, after the pushing block 203 resets, one side of the pushing block 203 close to the outlet 507 abuts against one end of the cleaning plate 502. And when the pushing block 203 resets, the area from the communication port 506 to the feeding port 4 of the conveying channel 2 is unobstructed. Then, the controller 505 provided at the bottom of the connection box 501 can be started again through the remote control device, so that the controller 505 drives the electric telescopic rod 504 provided there to extend, and then the toothed plate 503 provided at the bottom end of the electric telescopic rod 504 moves into the interior of the conveying channel 2. During the downward movement of the toothed plate 503, it meshes with the gear 605 provided on the outer surface of the threaded rod 603, so that the threaded rod 603 rotates under the meshing of the toothed plate 503 and the gear 605, and the baffle 601 moves away from the communication port 506, so that the communication port 506 is directly exposed, so as to feed the garbage into the interior of the conveying channel 2 again, and then repeat the above operation to push the garbage into the pyrolysis gasification furnace 1 for pyrolysis gasification.

[0053] At the same time, when the toothed plate 503 moves downward under the action of the electric telescopic rod 504, the cleaning plate 502 provided at the bottom end of the toothed plate 503 moves in the same way as the toothed plate 503. At this time, the cleaning plate 502 moves from top to bottom along one side of the pushing block 203, so that the cleaning plate 502 cleans the garbage adhered to one side of the pushing block 203. The cleaned garbage directly falls into the interior of the collection box 7 through the outlet 507, effectively cleaning the garbage accumulated inside the conveying channel 2. Later, the garbage inside the collection box 7 can be directly recycled.

[0054] Finally, when the pyrolysis gasification furnace 1 performs pyrolysis gasification operation on the garbage, the generated waste residue can be discharged through the feeding hopper 3 provided at the bottom of the pyrolysis gasification furnace 1.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined gasification treatment device for domestic waste, comprising: Pyrolysis gasification furnace and a conveying channel arranged on the outer surface of the pyrolysis gasification furnace. An inlet for connecting the pyrolysis gasification furnace and the conveying channel is provided on the outer surface of the pyrolysis gasification furnace. A feeding hopper is arranged on the upper surface of the conveying channel. A pushing block for garbage movement is slidably arranged inside the conveying channel. It is characterized in that: a recycling mechanism is arranged inside the conveying channel, and the recycling mechanism is used for recycling residual garbage inside the conveying channel; the recycling mechanism includes a connecting box arranged on the upper surface of the conveying channel. A toothed plate is slidably arranged inside the connecting box. A cleaning plate is arranged at the bottom end of the toothed plate. The cleaning plate is slidably arranged inside the conveying channel, and one end of the cleaning plate abuts against one side of the pushing block. An outlet for garbage recycling is provided on the lower surface of the conveying channel; A controller is arranged on the top of the connecting box. An electric telescopic rod is arranged on the lower surface of the controller. The bottom end of the electric telescopic rod is fixedly connected to the upper surface of the toothed plate. A limiting hole is provided at the inner bottom of the connecting box. One end of the toothed plate extends into the conveying channel through the limiting hole; A communication port is provided on the upper surface of the conveying channel. The bottom end of the feeding hopper is connected to the communication port. A metering mechanism for quantitative feeding of the feeding hopper is arranged inside the connecting box; The metering mechanism includes a baffle slidably arranged inside the connecting box. The baffle can be slidably arranged at the communication port. A threaded plate is fixedly arranged at one end of the baffle. A threaded rod for driving the threaded plate to move is arranged inside the connecting box; A gear is arranged on the outer surface of the threaded rod. The outer surface of the gear meshes with the toothed plate. A limiting rod is arranged inside the connecting box. One end of the threaded plate is sleeved on the outer surface of the limiting rod.

2. The combined gasification treatment equipment for domestic waste according to claim 1, characterized in that: A recycling channel is arranged on the lower surface of the outlet. A collection box for centralized recycling and collection of garbage is arranged at the bottom end of the recycling channel.

3. The combined domestic waste gasification treatment equipment according to claim 1, characterized in that: A cylinder for driving the pushing block to move is arranged at one end of the conveying channel away from the pyrolysis gasification furnace. A support frame is arranged on the lower surface of the conveying channel. A feeding hopper is arranged at the bottom end of the pyrolysis gasification furnace.

4. The combined domestic waste gasification treatment equipment according to claim 1, characterized in that: A drying area, an anoxic carbonization area and a combustion area are arranged inside the pyrolysis gasification furnace. The combustion area is close to the feeding hopper. The drying area is close to the inlet. The anoxic carbonization area is located between the drying area and the combustion area.

5. The combined gasification treatment equipment for domestic waste according to claim 4, characterized in that: A secondary combustion furnace is arranged outside the pyrolysis gasification furnace. An acid scrubber is arranged on one side of the secondary combustion furnace. A bag filter is arranged on one side of the acid scrubber. A purifier is arranged on one side of the bag filter. An induced draft fan is arranged on one side of the purifier. A chimney is arranged on one side of the induced draft fan.

6. The combined domestic waste gasification treatment equipment according to claim 5, characterized in that: A set of conveying pipes are respectively arranged between the pyrolysis gasification furnace, the secondary combustion furnace, the acid scrubber, the bag filter, the purifier, the induced draft fan and the chimney.

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