Environment-friendly treatment device and method for solid waste incineration removal

Abstract

The application discloses an environment-friendly treatment device and method for solid waste incineration and removal, which comprises a recovery tank, an incineration chamber, a tuyere, a stirrer and a spiral blade channel; the incineration chamber is arranged above the recovery tank; the stirrer driven by a motor is arranged in the incineration chamber; the tuyere connected with a blast device is arranged on the side wall of the incineration chamber; the airflow direction of the tuyere outlet forms an angle with the side wall, thereby forming a cyclone combustion furnace; the spiral blade channel is arranged on the upper side wall of the incineration chamber; a plurality of spiral blades are arranged in the channel; the top of the channel is connected with a main flue; a flue gas purification treatment system is arranged in the main flue; the incineration chamber is sequentially connected with an automatic feeding device and a material pretreatment device; the high-speed rotating airflow sprayed from the tuyere in the incineration device throws the incineration object to the cylinder wall, and the incineration object is burned on and near the cylinder wall, thereby forming a high-temperature area and prolonging the burning time; the stirrer turns the incineration object through rotation, so that the incineration object is fully combined with air, the burning degree is improved, and the residual slag falls to the bottom water tank for recovery.

Description

Technical Field

[0001] This invention belongs to the field of waste incineration, and particularly relates to an environmentally friendly treatment device and method for the incineration and removal of solid waste. Background Technology

[0002] With the continuous improvement of living standards and the increasing population in my country, the amount of solid waste generated in daily production and residential life is also increasing. Solid waste mainly refers to solid and semi-solid waste materials generated by humans in production, consumption, life and other activities. It can generally be divided into three categories: industrial waste, agricultural waste and domestic waste. The surge in the amount of various types of solid waste has also led to an increasing demand for solid waste treatment in my country. If solid waste is not effectively treated, it can easily pollute soil, air and water sources, and even pose a risk of spreading diseases, thus seriously affecting the living environment of residents and daily production efficiency.

[0003] Currently, my country's solid waste treatment methods can be mainly divided into three types: composting, landfill, and incineration. While composting offers certain economic benefits, its widespread application is difficult due to the diverse types of solid waste. Landfilling waste wastes significant land resources and may even impact groundwater resources, while also causing serious environmental pollution. In comparison, incineration effectively reduces the volume of solid waste and has a shorter processing time. Therefore, incineration is the most thorough, volume-reducing, and resource-recovery-oriented treatment technology for municipal solid waste, and has become the main method for treating municipal solid waste in my country. my country's solid waste incineration industry is in its early stages of development and has a huge market potential. Common incineration-type solid waste treatment equipment is mainly used for the clean treatment of medical or domestic waste, and equipment applied to the incineration of municipal solid waste is characterized by its small footprint and ease of use.

[0004] With the continuous promotion of solid waste classification in my country in recent years, the demand for incineration of household solid waste in residential communities is expected to become a hot topic in the future. However, very few household solid waste incineration systems applied in residential areas have pre-treatment devices. Currently, the incineration and utilization of solid waste generally requires sending it to a treatment plant for pre-treatment of the generated materials. For users, especially rural users, the utilization process is quite complicated. For safety reasons, the relevant equipment should also have a safe delivery function to avoid potential risks. In addition, the high-temperature flue gas generated after incineration is generally directly emitted due to its unstable calorific value, which easily leads to significant heat waste. At the same time, because the composition of solid waste itself is relatively complex, the characteristics of the flue gas produced after combustion are also relatively complex. Incineration will form new pollutants, which will have a relatively significant impact on the atmospheric environment. The pollutants contained in the flue gas after incineration are numerous, mainly including acidic gases, particulate matter, heavy metals, and highly toxic organic pollutants, which will cause significant environmental pollution and are an issue that cannot be ignored in the solid waste incineration process. Current solid waste incineration facilities offer relatively simple flue gas treatment, with most devices using filter layers for purification. However, due to the complex composition of flue gas, this method is insufficient to effectively address the flue gas problems resulting from the incineration of various types of solid waste. Therefore, an environmentally friendly, automated solid waste treatment system for incineration should be designed, combining flue gas utilization and treatment capabilities with pretreatment and automatic delivery functions to meet future market demands. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides an environmentally friendly treatment device for solid waste incineration. This environmentally friendly automatic solid waste treatment system includes a pre-treatment unit on its outer side, which dries and crushes the solid waste for subsequent combustion. The crushed material falls along a feeding chute into an automatic feeding device, avoiding manual feeding and reducing safety hazards during solid waste incineration. The crushed solid waste is then conveyed by a conveyor belt to the incineration unit at the bottom of the system. The incineration unit is mainly used to incinerate crushed solid waste from daily production and life. Since the incineration process will produce flue gas containing harmful substances, a flue gas treatment system is installed above the incineration unit to treat the toxic and harmful gases generated during solid waste incineration, ensuring that the emitted flue gas meets national environmental protection standards and preventing pollutant emissions.

[0006] To achieve the above objectives, the technical solution adopted by this invention is an environmentally friendly treatment device for solid waste incineration and removal, comprising a bottom recovery tank, an incineration chamber, air nozzles, a stirrer, and a channel containing spiral blades; the incineration chamber is located above the bottom recovery tank, the stirrer is installed above the bottom recovery tank inside the incineration chamber and is driven by a motor on its outer side, air nozzles are installed on the side wall of the incineration chamber, the air nozzles are connected to an air supply device, and the airflow direction at the outlet of the air nozzles forms an angle with the side wall of the incineration chamber, forming a cyclone combustion furnace, and a spiral blade channel is installed above the incineration chamber, connecting the combustion chamber and the spiral blades. The channels are arranged on the side walls of the furnace body. Multiple layers of spiral blades are arranged in the spiral blade channels. The top of the spiral blade channels is connected to the main flue. The main flue is equipped with a flue gas purification system. The incineration chamber is connected in sequence to an automatic feeding device and a solid waste pretreatment device. After being dried and crushed, the solid waste enters the cyclone burner through the external automatic feeding device. The residue produced by combustion falls to the bottom recovery tank. The flue gas produced by combustion rises and flows to the spiral blade channels on both sides to further separate the residue in the flue gas. The flue gas merges in the main flue after passing through the spiral blade channels.

[0007] The flue gas purification system includes a feedwater heater, a spray nozzle, a demister, and a reheater arranged sequentially along the flue gas flow direction. The feedwater heater promotes the mixing of flue gas and feedwater in the combustion chamber. The spray nozzle, demister, and reheater are used for flue gas purification. The spray nozzle is connected to a spray liquid device, and the reheater is used to eliminate whitening of the flue gas.

[0008] The solid waste pretreatment device includes a pressure plate, a screen plate, a drying channel, a feed inlet, a support frame, and a discharge cylinder. The fixed end of the pressure plate is connected to the support frame, and the free end of the pressure plate is suspended. The screen plate is arranged at the top of the discharge cylinder, which is located above the starting end of the conveyor belt. The outlet of the drying channel is located directly above the screen plate, and a trumpet-shaped feed inlet is arranged at the starting end of the drying channel. The bottom of the discharge cylinder is open, and the solid waste falling from above falls onto the conveyor belt.

[0009] The belt conveyor includes a feed inlet, a motor, a conveyor belt, and support rods. The conveyor belt is arranged at an angle and decreases in height gradually along the material flow direction. The support rods provide support for the entire conveyor belt and conveyor rollers. The motor is mounted on one of the support rods. The feed inlet is connected to the incineration chamber.

[0010] The automatic feeding device uses a screw conveyor.

[0011] A grid-type bottom plate is installed on the contact surface above the bottom recycling tank, with a gap size of 10mm; the bottom recycling tank is detachably installed at the bottom of the incineration chamber.

[0012] The drying channel is equipped with electric heating wires, and the thickness of the electric heating layer should be more than 20mm.

[0013] The spiral blades are arranged in at least 6 layers.

[0014] The agitator is equipped with two sets of agitating rods, and agitating blades are arranged around the agitating rods in a circumferential direction. The agitating rods are connected to the motor drive shaft outside the incinerator.

[0015] The operating method of the device described in this invention is as follows: after solid waste is fed into the incineration chamber by an automatic feeding device, high-speed rotating air is sprayed out by the nozzle, causing the incinerator to rotate at the same high speed and burn fully against the inner wall. At the same time, the agitator stirs the incinerator, and the incomplete combustion products generated during the separation process fall into the bottom recovery tank. When the flue gas after incineration flows in the spiral blade channel, the combustion residue mixed in the flue gas is further separated and falls into the bottom recovery tank. The flue gas converges at the bottom of the main flue and then flows into the main flue located at the top, and is discharged from the main flue.

[0016] The flue gas undergoes heat exchange with the feedwater in the feedwater heater for heating or hot water supply. The flue gas is then discharged after passing through spray nozzles, a demister for demisting, and a reheater for whitening in the main flue.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] This invention addresses the regional limitations of solid waste comprehensive utilization and the potential environmental pollution and safety issues associated with incineration. By combining a pretreatment unit, an automatic feeding unit, an incineration unit, and a flue gas comprehensive utilization unit, it aims to ensure the continuity, safety, and rationality of the incineration process. The solid waste is dried and crushed in the pretreatment unit, reducing the complexity of the utilization process. The crushed material is automatically fed into the incineration unit via the automatic feeding unit, eliminating the need for manual feeding and ensuring the safety of the incineration process. The material fed into the incineration unit rotates at high speed under the action of high-speed rotating air, ensuring complete combustion, extending the combustion time, increasing the degree of burnout, and reducing residues in the incineration flue gas. The residues produced after incineration fall into a recovery tank for recycling, reducing the safety hazards associated with incineration residues. During incineration, a modified stirring device is used to evenly agitate the material, increasing the contact area with oxygen. The flue gas generated during incineration rises and is diverted to a separation flue, which is equipped with spiral blades to further separate unburned materials remaining in the flue gas. By separating the flue gas from the main flue and allowing it to re-converge at the bottom of the main flue, this invention provides a systematic, automated, and environmentally friendly treatment process for solid waste incineration, saving energy, reducing costs, and minimizing environmental pollution.

[0019] Furthermore, the feed inlet facilitates user submission, and an inclined drying channel ensures that solid waste is dried before entering the crushing device. The dried material is then crushed as a whole on a screen plate by a pressure plate. After crushing, it is screened and falls into the automatic feeding device via a discharge cylinder. This eliminates the need to transport solid waste to a waste treatment plant, improving the convenience of the utilization process.

[0020] Furthermore, before entering the flue gas treatment device, the flue gas first flows through a heat exchanger to heat the feed water for daily use by users, avoiding heat waste caused by direct emission of high-temperature flue gas; the flue gas is sprayed through spray nozzles, and water vapor is added to dissolve easily soluble impurities in the flue gas, reducing harmful substances mixed in with the flue gas; the demister captures mist particles and slurry droplets entrained in the flue gas, reducing the water vapor content of the flue gas and preventing subsequent flue gas corrosion; the reheater performs whitening treatment on the flue gas, increases the flue gas temperature, and improves the flue gas emission.

[0021] Furthermore, a paddle-shaped agitator is installed in the incineration chamber, which rotates to tumble the material, increasing the contact area with air and improving the degree of combustion.

[0022] Furthermore, solid waste does not require manual feeding; it automatically enters the incineration chamber for incineration via a conveyor belt and feed port. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an environmentally friendly automated incineration device used in the solid waste incineration process.

[0024] In the attached diagram: 1-bottom recovery tank, 2-air nozzle, 3-spiral blade channel, 4-water heater, 5-spray nozzle, 6-demister, 7-reheater, 8-motor, 9-conveyor belt, 10-support rod, 11-pressure plate, 12-screen plate, 13-drying channel, 14-feed inlet, 15-support frame, 16-discharge cylinder, 17-agitator, 18-feeding port. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1As shown, the present invention provides an environmentally friendly treatment device for solid waste incineration and removal, comprising a bottom recycling tank 1, an incineration chamber, air nozzles 2, an agitator 17, and a spiral blade channel 3. The incineration chamber is located above the bottom recycling tank 1. The agitator 17 is positioned above the bottom recycling tank 1 within the incineration chamber and is driven by a motor on its outer side. Air nozzles 2 are installed on the side wall of the incineration chamber, connected to an air supply device. The airflow direction at the outlet of the air nozzles 2 forms an angle with the side wall of the incineration chamber, forming a cyclone combustion furnace. A spiral blade channel 3 is installed above the incineration chamber. The combustion chamber and the spiral blade channel 3... All are arranged on the side wall of the furnace body. Multiple layers of spiral blades are arranged in the spiral blade channel 3. The top of the spiral blade channel 3 is connected to the main flue. The main flue is equipped with a flue gas purification system. The incineration chamber is connected in sequence to the automatic feeding device and the solid waste pretreatment device. After being dried and crushed, the solid waste enters the cyclone burner through the external automatic feeding device. The residue produced by combustion falls to the bottom recovery tank 1. The flue gas produced by combustion rises and flows to the spiral blade channels 3 on both sides to further separate the residue in the flue gas. The flue gas merges in the main flue after passing through the spiral blade channel.

[0027] The bottom recycling trough 1 is located at the very bottom of the incineration unit and is connected to the incineration chamber via a grating plate. It is primarily used to collect the residue generated after incineration. Failure to collect this residue could pose a safety hazard due to leakage and increase the amount of harmful substances produced during solid waste incineration. The bottom recycling trough 1 has a disassembly port on its side for easy, periodic cleaning to prevent blockage. Above the bottom recycling trough 1 is a base plate with a grating, which supports the incinerated material. The grating allows the residue to fall into the recycling trough, preventing blockage of the feed inlet and re-ignition of waste. Furthermore, the bottom recycling trough 1 is removable; when excessive waste accumulates, it can be removed for cleaning to prevent excessive blockage. The incineration chamber is located above the base plate. Air nozzles 2 are installed on the inner wall of the incineration chamber of the incineration unit, mainly used to increase the air required for solid waste combustion. After the solid waste is fed into the incineration chamber, the air nozzles 2 spray high-speed rotating air, causing the incinerator to rotate at the same high speed, closely adhering to the inner wall surface for complete combustion. Incomplete combustion products generated during the separation process fall into the bottom recovery tank 1. An agitator 17 with two sets of stirring blades is installed inside the incineration chamber, which is in contact with the bottom recovery tank 1. Spiral blade channels 3 are installed in the rising flues on both sides of the middle part of the incineration unit. The main flue gas channel is above the spiral blade channels 3. When the flue gas flows in the spiral blade channels 3 after combustion, the combustion residue mixed in with the flue gas is further separated and falls into the bottom recovery tank 1.

[0028] After entering the main flue, the flue gas undergoes heat exchange in a heat exchanger to produce hot water for residential use. Subsequently, the flue gas is sprayed at a nozzle device to treat harmful substances and reduce emissions. However, the water vapor content in the sprayed flue gas is too high; therefore, a demister is installed to reduce water vapor levels and prevent flue gas corrosion. Before the flue gas is discharged, a reheater is installed to further heat and eliminate whitening effects.

[0029] A feedwater heater 4 is located at the inlet of the main flue, allowing heat exchange between the flue gas and feedwater to provide heating or hot water for individual users. Spray nozzles 5 are installed inside the main flue, at its lower part, to spray the collected flue gas, removing harmful substances such as sulfur and nitrates. A demister 6 is also located inside the main flue, between the spray nozzles 5 and the reheater 7. After passing through the spray nozzles 5, the water vapor content of the flue gas increases, which, without treatment, can easily corrode subsequent flues. The demister 6 reduces the water vapor content in the flue gas. The reheater 7 is located inside the main flue, at its tail end. Its main function is to increase the temperature of the demisted flue gas and eliminate whitening. The required heat is provided by the cyclone burner at the bottom of the incinerator. After multiple combustion processes, the harmful substances in the flue gas are significantly reduced. For areas requiring heating, this structure can be easily modified to provide heating capabilities.

[0030] The feed inlet 18 is located on the bottom outer wall of the incineration unit section, connecting the automatic feeding device section and the incineration unit section. The conveyor belt 9 feeds the incinerator into the bottom of the incineration chamber for combustion through the feed inlet 18. The motor 8 is located on the right side of the automatic feeding device section and is supported by a separate support rod 10. Its function is to provide power for the operation of the conveyor belt. The conveyor belt 9 is used to transport the incinerator and is arranged from top to bottom. After the incinerator is placed on the conveyor belt 9, it is fed downward into the incineration chamber for combustion. The support rod 10 is located at the bottom of the automatic feeding device section and supports the conveyor belt 9 and the rollers.

[0031] A feeding cylinder 16 is arranged above the starting end of the conveyor belt 9. A screen plate 12 is arranged above the feeding cylinder 16. The fixed end of the pressure plate 11 is connected to the support frame 15, and the free end of the pressure plate 11 is suspended. The screen plate 12 is arranged on the top of the feeding cylinder 16 to crush the incinerator. The upper right side of the feeding cylinder 16 is open and connected to a drying channel 13 with an internal electric heating wire. A trapezoidal opening feed port 14 is provided on the inlet side of the drying channel 13.

[0032] Preferably, the flue of the present invention adopts a design of first diverting and then converging. The diverting flue has a side chamber on the side, and a spiral blade channel 3 is arranged in the side chamber. After flowing through the side chamber, the flue gas converges at the bottom of the main flue. After converging, the flue gas flows into the main flue located at the top. After combustion, the flue gas passes through the diverting flue and the converging flue, and the residues mixed in the flue gas are further removed.

[0033] Preferably, an automatic feeding device is installed on the outside of the environmentally friendly automated incineration system. The automatic feeding device is arranged on the side of the incineration device and is connected to the environmentally friendly automated incineration system through the feeding port 18.

[0034] like Figure 1 As shown, this invention provides an environmentally friendly automated incineration system for waste treatment, including a bottom recycling trough 1 located at the bottom of the incineration chamber of the incineration unit. The upper contact surface of the bottom recycling trough 1 is configured as a grid-type bottom plate. After incineration, waste falls into the recycling trough through the gaps in the grid, facilitating the recycling of waste generated during incineration. The bottom recycling trough 1 is designed to be removable, making it easy to clean and replace when there is a large amount of waste in the recycling trough. The air nozzles 2 located on the inner wall of the incineration chamber of the incineration unit mainly serve to supply air during the incineration process, while the agitator 17 located above the bottom recycling trough 1 mainly serves to agitate the solid waste during the incineration process. These two devices ensure that the incinerator is fully burned in the incineration chamber, avoiding the problem of incomplete combustion caused by some heavier incinerators falling to the bottom of the ash when incinerators with different compositions are mixed and burned. This further avoids the possibility of unburned products clogging the grid of the bottom recycling trough.

[0035] The spiral blade channel 3, located on the side wall, together with the two side chambers on the whole, forms the flue gas separation system of the device. The flue gas generated by combustion rises and flows into the side chamber. Through structural design, the flue gas enters the spiral blade channel 3 from the bottom. The flue gas rotates and rises in the flow channel, separating the incomplete combustion products. The separated incomplete combustion products fall into the recovery tank for recycling. Subsequently, the separated flue gas flows out of the side chamber, passes through the gap between the side chamber and the bottom of the main flue, and flows into the main flue at the bottom.

[0036] After the flue gas flows into the main flue, it is equipped with a primary flue gas utilization device and a tertiary flue gas treatment device in a bottom-up sequence. First, the flue gas is used for heat utilization to supply users' daily needs. Then, the flue gas, after two ash separation processes, undergoes purification treatment to meet emission standards. The flue gas utilization device is a feedwater heater 4. The flue gas produced by combustion has high heat content, and direct treatment and emission would result in significant heat waste; therefore, a flue gas heat exchanger is installed first. Subsequently, the first-stage flue gas treatment device in the flue gas treatment system is a spray nozzle 5. The flue gas flowing in from the bottom of the main flue contains many easily soluble harmful substances, mainly sulfides and nitrates. Therefore, these easily soluble harmful substances must be treated. The flue gas is sprayed through the spray nozzle 5, using water vapor to remove easily soluble impurities and prevent them from polluting the outdoor environment after being discharged with the flue gas. The second-stage flue gas treatment device is a demister 6. After the first spray treatment, the flue gas has a relatively high water vapor content, so a demister is installed to reduce the water vapor content in the flue gas through baffles. The distance between the spray nozzles 5 and the demister 6 should be small to avoid corrosion during the flow process. The third-stage flue gas treatment device is a reheater 7. After the first two stages of treatment, to prevent the flue gas temperature from being too high and producing white smoke, the reheater 7 is installed to cool and eliminate white smoke, preventing the emitted flue gas from polluting the environment. The three-stage treatment devices are arranged continuously to systematically treat the flue gas.

[0037] The feeding device uses a belt conveyor. The material inlet 18, located outside the combustion chamber of the incineration unit, is situated below the outer wall of the combustion chamber. Material enters the combustion chamber through the material inlet 18 for combustion. The motor 8 is located at the far right of the feeding system, providing operational support. A conveyor belt 9, running from top to bottom, automatically transports the material placed on it into the combustion chamber. The entire automatic material feeding system is equipped with multiple support rods 10 to support the feeding device.

[0038] The pretreatment unit mainly includes drying and crushing equipment. The crushing device, located on the right side of conveyor belt 9, mainly comprises a support frame 15, a screen plate 12, a pressure plate 11, and a feeding cylinder 16. Dry material flows in through the upper opening of the feeding cylinder 16. A separate screen plate 12 of approximately 100 mesh is installed above the feeding cylinder to hold the incoming uncrushed material. The support frame 15 supports the operation of the pressure equipment. The pressure plate 11, located in the middle of the support frame 15, is directly above the screen plate 12. During crushing, the pressure plate compresses the material downwards, and the crushed material falls through the screen holes of the screen plate 12 into the conveyor. The drying unit mainly consists of a drying channel 13 and a feed inlet 14. The trapezoidal feed inlet 14 is designed for convenient disposal of solid waste and connects to the inclined drying channel 13. The feeding cylinder 16 connects to the outside of the drying equipment, feeding the dried material into the crushing device.

[0039] It needs to be clarified that the environmentally friendly automated incineration system for municipal solid waste treatment constructs a flue gas separation system in terms of structure and accessories by setting up side chambers, separating flue gas, and installing spiral flow channels. This system is used to separate waste mixed in with the flue gas generated after incineration. After two structural flue gas separation and convergence processes and the spiral flow channel, the ash mixed in with the flue gas is further removed, preventing it from accumulating in the main flue.

[0040] The main flue gas comprehensive utilization system of the present invention is composed of a water heater 4, a spray nozzle 5, a demister 6, and a reheater 7. It can be clearly seen that the flue gas comprehensive utilization system is a unit for efficient utilization and harmless treatment of flue gas, and is a flue gas treatment structure that can be clearly understood by those skilled in the art.

[0041] The present invention provides an implementable automatic feeding device, which specifically includes a feeding port 18, a motor 8, a conveyor belt 9, and a support rod 10. This automatic feeding device is mainly used to automatically feed incinerable materials, avoiding the need for manual feeding of incinerable materials during the waste incineration process. The automatic feeding device can avoid the fire risk caused by such behavior and effectively improve the safety and efficiency of the waste incineration process.

[0042] An automated incineration system for environmentally friendly municipal solid waste treatment is equipped with an air supply device inside the incineration chamber. This air supply device includes four layers of air nozzles 2. By adjusting the air supply direction, the material is made to rotate and burn, and impurities mixed in during combustion are thrown out and fall into the recycling tank for recovery, thus improving the combustion efficiency. Preferably, two air nozzles 2 are symmetrically arranged on each layer of the cylindrical incineration chamber to achieve symmetrical air supply and promote the rotational combustion of the incinerator along the inner wall of the incineration chamber.

[0043] The environmentally friendly automated incineration system for municipal solid waste treatment is equipped with a turning device inside the incineration chamber. This device includes two sets of paddle-shaped agitators 17 arranged side by side. An external motor drives a central stirring rod, causing the blades to evenly turn over the solid waste, preventing the accumulation of incinerator materials and increasing the contact area between the material and air. The paddle-shaped agitators are arranged in two rows side by side, with their rear ends connected to the external motor via gears for easy operation.

[0044] In the above, the spiral blade channel 3 is arranged in the lower part of the two side chambers, forcing the flue gas into the lower part of the side chamber, which fully enhances the removal of ash mixed in with the flue gas during the diversion process; the water heater 4 is connected to the water supply pipe and the water supply pipe, so that the external water supply is sent into the equipment for heating; the spray nozzle 5 is connected to the spray liquid device, which atomizes the water supply during spraying, preventing the direct spray water from settling in the lower part of the device, and then sprays the flue gas to remove harmful substances in the flue gas.

[0045] The internal demisting channel of the demister 6 shown in the accompanying drawings is simplified. In reality, the spacing between the internal demisting flues is relatively dense, which facilitates the removal of water vapor from the flue gas. The working medium heated in the reheater 7 is the cleaned flue gas. The heat of the heating working medium is input from the outside to heat the low-temperature flue gas and eliminate whitening.

[0046] In the above, the motor 8, conveyor belt 9 and support rod 10 are externally processed conveying devices. After external assembly, they are connected to the incineration chamber of the waste incineration device through the material inlet 7. The support rod 10 should not be arranged too high to avoid excessively obstructing the user's view during the incineration process of municipal solid waste.

[0047] In the environmentally friendly automated solid waste treatment system of this invention, the internal nozzles of the incineration unit spray high-speed rotating air. The high-speed rotation of the airflow throws the incinerator material against the cylinder wall, where it burns in the space near the cylinder wall, forming a high-temperature zone. This prolongs the combustion time of the incinerator material within the solid waste treatment unit. The agitator rotates to tumble the incinerator material, promoting its full combination with air. The high-speed rotation of the incinerator material, driven by air, increases the contact area between the incinerator material and air, effectively extending the combustion time and significantly improving the degree of burnout. Through the internal structural design of the incineration unit, the flue gas generated after combustion at the bottom is channeled through a specific structure to the bottom of the spiral blade channels on both sides, separating the residues in the combustion flue gas. The flue gas then flows upward through the spiral blade channels, where the remaining combustion products are further separated and fall into the lower recovery tank for recycling. The flue gas utilization unit separates and polymerizes the flue gas generated during incineration. Simultaneously, the gas flows through a spiral blade channel located above the incinerator, separating ash and other waste materials carried during combustion. A water heater, spray nozzles, atomizers, and reheater are installed at the top of the solid waste treatment system, providing hot water or heating, and treating the flue gas with spraying, demisting, and whitening processes to ensure the discharged flue gas is clean and reduces environmental pollution. An automatic feeding device and pretreatment device are located outside the solid waste treatment unit. After being dried and crushed, the waste is automatically fed into the incineration chamber, eliminating the need for manual material feeding and significantly reducing the risks during solid waste incineration, thus improving operational safety.

Claims

1. An environmentally friendly treatment device for the incineration and removal of solid waste, characterized in that: It includes a furnace body, a bottom recovery trough (1) located at the bottom of the furnace body, an incineration chamber located above the bottom recovery trough (1), a nozzle (2) located on the side wall of the incineration chamber and connected to the air supply device, an agitator (17) located in the incineration chamber and located above the bottom recovery trough (1), a spiral blade channel (3) located on both sides of the upper part of the incineration chamber and connected to the interior of the incineration chamber, and a main flue connected to the top of the spiral blade channel (3); The outlet airflow direction of the nozzle (2) forms an angle with the side wall of the incineration chamber, so that the airflow entering the incineration chamber forms a rotating upward airflow along the inner wall of the incineration chamber; The stirrer (17) is provided with two sets of stirring rods, and stirring blades are provided on both sets of stirring rods along the circumference. The stirring rods are connected to the motor drive shaft located on the outside of the furnace body. The spiral blade channel (3) is provided with multiple spiral blades. The flue gas generated by combustion enters the spiral blade channel (3) on both sides from the upper part of the combustion chamber and rises along the spiral path. During the rise, the entrained residue is separated and falls back to the bottom recovery tank (1). The flue gas after being treated by the spiral blade channel (3) merges with the main flue. The main flue is equipped with a flue gas purification system, which includes a water heater (4), a spray nozzle (5), a demister (6), and a reheater (7) arranged sequentially along the flue gas flow direction. The spray nozzle (5) is connected to a spray liquid device, and the feed end of the incineration chamber is also connected to an automatic feeding device. It also includes a solid waste pretreatment device connected to the feed end of the automatic feeding device. The solid waste pretreatment device is used to dry and crush solid waste. The solid waste pretreatment device includes a pressure plate, a screen plate, a drying channel (13), a feed inlet, a support frame, and a discharge cylinder. The fixed end of the pressure plate is connected to the support frame, and the free end of the pressure plate is suspended. The screen plate is arranged at the top of the discharge cylinder, and the discharge cylinder is arranged above the starting end of the automatic feeding device. The outlet of the drying channel is arranged directly above the screen plate, and the starting end of the drying channel is provided with a trumpet-shaped feed inlet.

2. The environmentally friendly treatment device for solid waste incineration and removal according to claim 1, characterized in that: The bottom recycling tank (1) is provided with a grid-type bottom plate above it. The gap size of the grid-type bottom plate is 10 mm, and the bottom recycling tank (1) is detachably installed at the bottom of the incineration chamber.

3. The environmentally friendly treatment device for solid waste incineration and removal according to claim 1, characterized in that: The spiral blades in the spiral blade channel (3) are arranged in at least 6 layers.

4. The environmentally friendly treatment device for solid waste incineration and removal according to claim 1, characterized in that: The automatic delivery device uses a screw conveyor.

5. An environmentally friendly treatment device for solid waste incineration and removal according to claim 1, characterized in that: The drying channel (13) is equipped with an electric heating wire, and the thickness of the electric heating layer is more than 20 mm.

6. A method for operating an environmentally friendly treatment device based on any one of claims 1 to 5, characterized in that: Includes the following steps: Solid waste is sent into the incineration chamber; Airflow is introduced into the incineration chamber through the air nozzle (2) to form a rotating upward airflow in the incineration chamber, which promotes the combustion of solid waste in the incineration chamber; The solid waste and combustion residue in the lower part of the incineration chamber are turned over by a stirrer (17); The residue produced by incineration falls into the bottom recycling tank (1); The flue gas generated by combustion enters the spiral blade channel (3) on both sides from the upper part of the combustion chamber. The residues carried by the flue gas are further separated in the spiral blade channel (3) and fall back to the bottom recovery tank (1). After being processed by the spiral blade channel (3), the flue gas merges into the flue gas purification system after being processed by the main flue.

7. The operating method according to claim 6, characterized in that: The flue gas is discharged after being processed by the feed water heater (4), spray nozzle (5), demister (6) and reheater (7) in sequence. The flue gas exchanges heat with the feed water in the feed water heater (4), and is discharged after being sprayed by the spray nozzle (5), demisted by the demister (6) and cleared by the reheater (7).

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