A general industrial solid waste incineration process and apparatus

Abstract

This invention discloses a general industrial solid waste incineration process and apparatus. The slag discharge equipment includes multiple slag discharge conveyor belts, with a working chamber between each pair of adjacent conveyor belts. Each working chamber is equipped with a slag-turning mechanism, and a fixed seat is also provided on the working chamber. A drive motor is mounted on the fixed seat and connected to the slag-turning mechanism. This general industrial solid waste incineration process and apparatus, unlike existing technologies, allows operators to use the drive motor to operate the slag-turning mechanism during slag transport, thereby turning over the slag on the previous conveyor belt and discharging it onto the next conveyor belt. This avoids the difficulty of heat dissipation of the slag in the middle of the conveyor belt, thus preventing softening of the middle of the high-temperature resistant slag conveyor belt after prolonged use and ensuring the normal operation of the conveyor belt to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of industrial solid waste incineration technology, specifically to a general industrial solid waste incineration process and apparatus. Background Technology

[0002] Circulating fluidized bed boilers employ the most advanced clean coal combustion technology in industrial applications. They utilize fluidized bed combustion and primarily consist of two parts: a combustion chamber (including dense and dilute phase zones) and a circulating return system (including a high-temperature gas-solid separator and a return material system). Circulating fluidized bed boilers were developed based on bubbling bed boilers (fluidized bed boilers), therefore some theories and concepts from bubbling beds can be applied to circulating fluidized bed boilers, but there are significant differences. Early circulating fluidized bed boilers had relatively high fluidization velocities, hence the name "fast circulating fluidized bed boilers."

[0003] However, in actual use, we found that in existing boilers, after ash discharge, the ash is cooled by a ash cooler using demineralized water, reducing the ash temperature from around 950℃ to below 100℃. The ash is then transported by a high-temperature resistant ash conveyor belt. However, during the transport process, the ash that still has residual heat will continue to dissipate heat as it is conveyed by the high-temperature resistant ash conveyor belt. The ash on the surface is in contact with the air and can continue to dissipate heat, while the ash in the middle has difficulty dissipating heat. After long-term use, this will cause the middle part of the high-temperature resistant ash conveyor belt to soften, affecting the normal use of the ash conveyor belt. In addition, the softened ash conveyor belt will also have ash adhering to it, further affecting the use of the ash conveyor belt. Therefore, we propose a general industrial solid waste incineration process and device. Summary of the Invention

[0004] The purpose of this invention is to provide a general industrial solid waste incineration process and apparatus to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a general industrial solid waste incineration process, the steps of which are as follows:

[0006] S1. Fuel Transportation: The fuel for the solid waste incinerator is industrial solid waste, biochemical sludge, and auxiliary coal. Limestone powder is also co-fired for in-furnace desulfurization. Industrial solid waste is transported to the waste slag bin in front of the furnace by a belt conveyor system. Biochemical sludge is transported by truck to the sludge shed for storage, and then loaded onto the sludge receiving hopper by a loader. It is then transferred to the belt conveyor system by a screw feeder and transported to the sludge bin in front of the furnace. Coal is transported by dump truck to the newly built dry coal shed for storage, and then transported to the coal bin in front of the furnace through coal taking, coal feeding, iron removal, screening, crushing, and conveying. In-furnace desulfurization uses purchased finished limestone powder, which is transported to the plant by powder tanker truck and unloaded into the limestone powder bin. It is then sent to the furnace for desulfurization through a pneumatic conveying device at the bottom of the bin.

[0007] S2. Industrial solid waste incineration: The solid waste incinerator adopts a circulating fluidized bed furnace;

[0008] S3. Ash and slag removal: The boiler ash discharge method is solid ash discharge, and the ash discharge method is water-cooled drum ash cooler - ash discharge equipment - slag bin.

[0009] The flue gas treatment system adopts an electrostatic precipitator + semi-dry desulfurization + bag filter.

[0010] S4. Flue gas purification: Flue gas is purified by a combination of in-furnace limestone spraying, electrostatic pre-dust removal, out-of-furnace semi-dry acid removal, and bag filter activated carbon adsorption.

[0011] Preferably, the slag discharge equipment includes multiple slag discharge conveyor belts, with a working chamber between each pair of adjacent slag discharge conveyor belts. Each working chamber is equipped with a slag-turning mechanism, and a fixed seat is also provided on the working chamber. A drive motor is mounted on the fixed seat and connected to the slag-turning mechanism. This design differs from existing technologies, allowing operators to drive the slag-turning mechanism via the drive motor when conveying slag, thereby turning over the slag on the previous slag discharge conveyor belt and discharging it onto the next slag discharge conveyor belt. This avoids the difficulty of heat dissipation of the slag in the middle of the slag discharge conveyor belt, and thus prevents the softening of the middle of the high-temperature slag conveying belt after prolonged use, ensuring the normal operation of the slag conveying belt to a certain extent.

[0012] Preferably, the slag-turning mechanism includes a slag-turning top plate and a slag-turning bottom plate disposed on the inner side of the top of the working chamber. The two sides of the slag-turning bottom plate are respectively close to the two adjacent slag discharge conveyor belts. A slag-turning assembly is disposed in the working chamber. The slag-turning assembly is used to turn over the slag on the slag-turning bottom plate and discharge it into the next slag discharge conveyor belt. The slag-turning assembly is connected to a drive motor.

[0013] The bottom of the working chamber is open, and a movable slag box is provided at the bottom.

[0014] Preferably, the top plate of the slag-turning device has a bent structure on the side near the previous slag discharge conveyor belt, and a slag discharge tail cover is provided on the other side.

[0015] Preferably, the slag-turning bottom plate has an arc-shaped structure in the middle, and the slag-turning assembly includes a rotating shaft rotatably disposed inside the working chamber. The rotating shaft is connected to the output end of the drive motor, and a plurality of rotating plates for turning the slag are evenly disposed on the outer side of the rotating shaft. The bottom of the rotating plates is in contact with the slag-turning bottom plate.

[0016] Each rotating plate is equipped with a cleaning component, which is used to clean the slag adhering to the rotating plate.

[0017] Preferably, the cleaning component includes positioning seats disposed on both sides of the rotating plate, each of the two positioning seats is provided with a spring, and each of the ends of the two springs is provided with a cleaning plate;

[0018] Both the rotating plate and the cleaning plate are equipped with magnets for use in conjunction.

[0019] Preferably, a scraper is provided at one end of the working chamber near the previous slag discharge conveyor belt, and the scraper is in contact with the adjacent slag discharge conveyor belt, thereby enabling the scraping of slag from the slag discharge conveyor belt.

[0020] Preferably, the working chamber is also provided with an exhaust assembly for cleaning dust generated during slag turning on the side near the drive motor. The exhaust assembly includes a mounting plate on one side of the working chamber, a fan on the mounting plate, and an air inlet pipe connected to the working chamber. There are two air inlet pipes, and the two adjacent ends of the two air inlet pipes are connected to each other and connected to the air inlet of the fan.

[0021] The exhaust port of the fan is equipped with an auxiliary component, which enables the scraper to be cleaned by blowing air through the auxiliary component.

[0022] Preferably, the auxiliary component includes an exhaust pipe disposed at the exhaust port of the fan, the exhaust pipe having a variable diameter structure, an auxiliary pipe disposed at the end of the exhaust pipe, the auxiliary pipe penetrating the working cavity, a partition disposed inside the working cavity, and the auxiliary pipe mounted on the partition.

[0023] The auxiliary pipe is provided with cleaning holes, and there are multiple cleaning holes.

[0024] Preferably, the exhaust pipe has a variable diameter structure.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. This invention enables operators to drive the slag-turning mechanism via the drive motor when conveying slag, thereby turning over the slag on the previous slag discharge conveyor belt and discharging it onto the next slag discharge conveyor belt. This avoids the difficulty of heat dissipation of the slag in the middle of the slag discharge conveyor belt, and thus avoids the softening of the middle of the high-temperature slag conveying belt after long-term use, ensuring the normal use of the slag conveying belt to a certain extent.

[0027] 2. The present invention, through the setting of the cleaning component, enables the slag adhering to the rotating plate to be cleaned by increasing the speed of the drive motor during use, which greatly avoids the slag adhering to the rotating plate.

[0028] 3. The present invention, through the setting of auxiliary components, can clean the slag on the scraper under the action of the cleaning holes opened on the auxiliary pipe, and let it fall into the movable slag box at the bottom. Attached Figure Description

[0029] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 Schematic diagram of the local cross-section structure;

[0031] Figure 3 This is a schematic diagram of the enlarged structure of region A of the present invention;

[0032] Figure 4 This is a schematic diagram of the enlarged structure of region B of the present invention;

[0033] Figure 5 This is a schematic diagram of the rotating plate structure of the present invention;

[0034] Figure 6 This is a partial cross-sectional structural diagram of the working cavity of the present invention;

[0035] Figure 7 For the present invention Figure 2 Schematic diagram of the local cross-section structure;

[0036] Figure 8 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention.

[0037] In the diagram: 1-Slag discharge equipment; 2-Slag discharge conveyor belt; 3-Working chamber; 4-Slag turning mechanism; 41-Slag turning top plate; 42-Slag turning bottom plate; 43-Moving slag box; 44-Slag discharge tail cover; 5-Slag turning assembly; 51-Rotating shaft; 52-Rotating plate; 6-Cleaning component; 61-Positioning seat; 62-Spring; 63-Cleaning plate; 64-Magnet; 7-Exhaust assembly; 71-Mounting plate; 72-Fan; 73-Inlet pipe; 8-Auxiliary component; 81-Exhaust pipe; 82-Auxiliary pipe; 83-Baffle plate; 84-Cleaning hole; 9-Fixed seat; 10-Drive motor; 11-Scraper. Detailed Implementation

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] Please see Figure 1-7 , the present invention provides a technical solution:

[0040] A typical industrial solid waste incineration process includes the following steps:

[0041] S1. Fuel Transportation: The fuel for the solid waste incinerator is industrial solid waste, biochemical sludge, and auxiliary coal. Limestone powder is also co-fired for in-furnace desulfurization. The industrial solid waste comes from the solid waste pretreatment workshop and is transported to the waste slag silo in front of the furnace by a belt conveyor system. The biochemical sludge is transported by truck to the sludge shed for storage, and then loaded onto the sludge receiving hopper by a loader. It is then transferred to the belt conveyor system by a screw feeder and transported to the sludge silo in front of the furnace. The coal is transported by dump truck to the newly built dry coal shed for storage, and then transported to the coal silo in front of the furnace through coal taking, coal feeding, iron removal, screening, crushing, and conveying. The in-furnace desulfurization uses purchased finished limestone powder, which is transported to the plant by powder tanker truck and unloaded into the limestone powder silo. It is then sent to the furnace for desulfurization by a pneumatic conveying device at the bottom of the silo.

[0042] S2. Industrial solid waste incineration: The solid waste incinerator adopts a circulating fluidized bed furnace;

[0043] S3. Ash and slag removal: The boiler ash discharge method is solid ash discharge, and the ash discharge method is based on the scheme of water-cooled drum ash cooler - belt conveyor - ash bin.

[0044] The flue gas treatment system adopts an electrostatic precipitator + semi-dry desulfurization + bag filter.

[0045] S4. Flue gas purification: Flue gas is purified by a combination of in-furnace limestone spraying, electrostatic pre-dust removal, out-of-furnace semi-dry acid removal, and bag filter activated carbon adsorption.

[0046] A general industrial solid waste incineration device includes a slag discharge equipment 1 comprising a slag discharge conveyor belt 2. Multiple slag discharge conveyor belts 2 are provided, and a working chamber 3 is provided between each two adjacent slag discharge conveyor belts 2. A slag turning mechanism 4 is provided on each working chamber 3, and a fixed seat 9 is also provided on the working chamber 3. A drive motor 10 is provided on the fixed seat 9, and the drive motor 10 is connected to the slag turning mechanism 4. The drive motor 10 drives the slag turning mechanism 4 to work, thereby turning over the slag on the previous slag discharge conveyor belt 2 and discharging it onto the next slag discharge conveyor belt 2.

[0047] The slag-turning mechanism 4 includes a slag-turning top plate 41 and a slag-turning bottom plate 42 disposed on the inner side of the top of the working chamber 3. The two sides of the slag-turning bottom plate 42 are close to two adjacent slag discharge conveyor belts 2 respectively. A slag-turning component 5 is disposed in the working chamber 3. The slag-turning component 5 is used to turn the slag on the slag-turning bottom plate 42 and discharge it into the next slag discharge conveyor belt 2. The slag-turning component is connected to the drive motor 10.

[0048] The bottom of the working chamber 3 is open, and a movable slag box 43 is provided at the bottom.

[0049] The top plate 41 of the slag-turning device has a bent structure on the side near the previous slag discharge conveyor belt 2, and a slag discharge tail cover 44 is provided on the other side.

[0050] The bottom plate 42 has an arc-shaped structure in the middle. The slag-turning assembly 5 includes a rotating shaft 51 rotatably disposed inside the working chamber 3. The rotating shaft 51 is connected to the output end of the drive motor 10. Multiple rotating plates 52 for turning the slag are evenly arranged on the outer side of the rotating shaft 51. The bottom of the rotating plates 52 is in contact with the bottom plate 42.

[0051] Each rotating plate 52 is equipped with a cleaning component 6, which is used to clean the slag adhering to the rotating plate 52.

[0052] The cleaning component 6 includes positioning seats 61 on both sides of the rotating plate 52, each of the two positioning seats 61 is provided with a spring 62, and each of the ends of the two springs 62 is provided with a cleaning plate 63.

[0053] Both the rotating plate 52 and the cleaning plate 63 are equipped with magnets 64 for use.

[0054] A scraper 11 is provided at one end of the working chamber 3 near the previous slag discharge conveyor belt 2. The scraper 11 is in contact with the adjacent slag discharge conveyor belt 2, thereby scraping the slag from the slag discharge conveyor belt 2.

[0055] The working chamber 3 is also equipped with an exhaust assembly 7 for cleaning the dust generated during slag turning on the side near the drive motor 10. The exhaust assembly 7 includes a mounting plate 71 on one side of the working chamber 3, a fan 72 on the mounting plate 71, and an air inlet pipe 73 connected to the working chamber 3. There are two air inlet pipes 73, and the two air inlet pipes 73 are connected at one end and connected to the air inlet of the fan 72. One air inlet pipe 73 is located at the bend of the slag turning top plate 41, and the other air inlet pipe 73 is located at the slag discharge tail cover 44. Both locations are equipped with filters.

[0056] The exhaust port of the blower 72 is equipped with an auxiliary component 8, which can be used to blow air to clean the scraper 11.

[0057] The auxiliary component 8 includes an exhaust pipe 81 installed at the exhaust port of the fan 72. The exhaust pipe 81 has a variable diameter structure. An auxiliary pipe 82 is installed at the end of the exhaust pipe 81. The auxiliary pipe 82 passes through the working chamber 3. A partition 83 is installed inside the working chamber 3. The auxiliary pipe 82 is installed on the partition 83.

[0058] The auxiliary pipe 82 is provided with cleaning holes 84, and there are multiple cleaning holes 84.

[0059] During use, the slag cooled by the water-cooled drum slag cooler falls onto the slag discharge conveyor belt 2 at the front end. After being conveyed, it falls onto the slag turning bottom plate 42 that is in contact with it. After continuing to be conveyed, the bottom of the slag discharge conveyor belt 2 contacts the scraper 11, thereby scraping off the slag at the bottom.

[0060] The drive motor 10 is started to drive the rotating shaft 51 to rotate, and the rotating shaft 51 drives the rotating plate 52 to rotate, thereby turning over the slag on the slag turning bottom plate 42 and conveying it to the next slag discharge conveyor belt 2. After a period of use or when the equipment is stopped, the speed of the drive motor 10 can be increased to make the rotating plate 52 and the cleaning plate 63 rotate quickly, thereby generating centrifugal force. When this centrifugal force is greater than the attraction force of the magnet 64, the scraper 11 disengages and can clean the rotating plate 52.

[0061] When the blower 72 is started, the air intake pipe 73 connected to the air intake end of the blower 72 adsorbs the dust at the two locations. After being filtered by the filter screen, the airflow is discharged through the exhaust port end of the blower 72 and enters the auxiliary pipe 82 through the exhaust pipe 81. Finally, it is discharged to the next process for further processing. While in the auxiliary pipe 82, the scraper 11 is cleaned through the exhaust hole. The cleaned slag falls directly and enters the movable slag box 43. Due to the setting of the baffle 83, the internal airflow is ensured to be discharged in an orderly manner to a certain extent.

[0062] This invention provides a technical solution:

[0063] A typical industrial solid waste incineration process includes the following steps:

[0064] S1. Fuel Transportation: The fuel for the solid waste incinerator is industrial solid waste, biochemical sludge, and auxiliary coal. Limestone powder is also co-fired for in-furnace desulfurization. The industrial solid waste comes from the solid waste pretreatment workshop and is transported to the waste slag silo in front of the furnace by a belt conveyor system. The biochemical sludge is transported by truck to the sludge shed for storage, and then loaded onto the sludge receiving hopper by a loader. It is then transferred to the belt conveyor system by a screw feeder and transported to the sludge silo in front of the furnace. The coal is transported by dump truck to the newly built dry coal shed for storage, and then transported to the coal silo in front of the furnace through coal taking, coal feeding, iron removal, screening, crushing, and conveying. The in-furnace desulfurization uses purchased finished limestone powder, which is transported to the plant by powder tanker truck and unloaded into the limestone powder silo. It is then sent to the furnace for desulfurization by a pneumatic conveying device at the bottom of the silo.

[0065] S2. Industrial solid waste incineration: The solid waste incinerator adopts a circulating fluidized bed furnace;

[0066] S3. Ash and slag removal: The boiler ash discharge method is solid ash discharge, and the ash discharge method is based on the scheme of water-cooled drum ash cooler - belt conveyor - ash bin.

[0067] The flue gas treatment system adopts an electrostatic precipitator + semi-dry desulfurization + bag filter.

[0068] S4. Flue gas purification: Flue gas is purified by a combination of in-furnace limestone spraying, electrostatic pre-dust removal, out-of-furnace semi-dry acid removal, and bag filter activated carbon adsorption.

[0069] A general industrial solid waste incineration device includes a slag discharge equipment 1 comprising a slag discharge conveyor belt 2, wherein multiple slag discharge conveyor belts 2 are provided, and a working chamber 3 is provided between each two adjacent slag discharge conveyor belts 2. A slag turning mechanism 4 is provided on each working chamber 3, and a fixed seat 9 is also provided on the working chamber 3. A drive motor 10 is provided on the fixed seat 9, and the drive motor 10 is connected to the slag turning mechanism 4. The drive motor 10 drives the slag turning mechanism 4 to work, thereby turning over the slag on the previous slag discharge conveyor belt 2 and discharging it onto the next slag discharge conveyor belt 2.

[0070] In this system, the lengths of multiple slag discharge conveyor belts 2 increase sequentially. The slag is turned over by the slag turning mechanism 4, which can cool the slag. Therefore, after the slag accumulates in the middle, the temperature rise rate is relatively slowed down. Thus, a slag discharge conveyor belt 2 with a longer length than the previous slag discharge conveyor belt 2 can be selected. By analogy, the length of the slag discharge conveyor belt 2 can be continuously increased. In this way, the number of slag discharge conveyor belts 2 and slag turning mechanisms 4 can be reduced to a certain extent during the journey to the slag bin.

[0071] The slag-turning mechanism 4 includes a slag-turning top plate 41 and a slag-turning bottom plate 42 disposed on the inner side of the top of the working chamber 3. The two sides of the slag-turning bottom plate 42 are close to two adjacent slag discharge conveyor belts 2 respectively. A slag-turning component 5 is disposed in the working chamber 3. The slag-turning component 5 is used to turn the slag on the slag-turning bottom plate 42 and discharge it into the next slag discharge conveyor belt 2. The slag-turning component is connected to the drive motor 10.

[0072] The bottom of the working chamber 3 is open, and a movable slag box 43 is provided at the bottom.

[0073] The top plate 41 of the slag-turning device has a bent structure on the side near the previous slag discharge conveyor belt 2, and a slag discharge tail cover 44 is provided on the other side.

[0074] The bottom plate 42 has an arc-shaped structure in the middle. The slag-turning assembly 5 includes a rotating shaft 51 rotatably disposed inside the working chamber 3. The rotating shaft 51 is connected to the output end of the drive motor 10. Multiple rotating plates 52 for turning the slag are evenly arranged on the outer side of the rotating shaft 51. The bottom of the rotating plates 52 is in contact with the bottom plate 42.

[0075] Each rotating plate 52 is equipped with a cleaning component 6, which is used to clean the slag adhering to the rotating plate 52.

[0076] The cleaning component 6 includes positioning seats 61 on both sides of the rotating plate 52, each of the two positioning seats 61 is provided with a spring 62, and each of the ends of the two springs 62 is provided with a cleaning plate 63.

[0077] Both the rotating plate 52 and the cleaning plate 63 are equipped with magnets 64 for use.

[0078] A scraper 11 is provided at one end of the working chamber 3 near the previous slag discharge conveyor belt 2. The scraper 11 is in contact with the adjacent slag discharge conveyor belt 2, thereby scraping the slag from the slag discharge conveyor belt 2.

[0079] The working chamber 3 is also equipped with an exhaust assembly 7 for cleaning the dust generated during slag turning on the side near the drive motor 10. The exhaust assembly 7 includes a mounting plate 71 on one side of the working chamber 3, a fan 72 on the mounting plate 71, and an air inlet pipe 73 connected to the working chamber 3. There are two air inlet pipes 73, and the two air inlet pipes 73 are connected at one end and connected to the air inlet of the fan 72. One air inlet pipe 73 is located at the bend of the slag turning top plate 41, and the other air inlet pipe 73 is located at the slag discharge tail cover 44. Both locations are equipped with filters.

[0080] The exhaust port of the blower 72 is equipped with an auxiliary component 8, which can be used to blow air to clean the scraper 11.

[0081] The auxiliary component 8 includes an exhaust pipe 81 installed at the exhaust port of the fan 72. The exhaust pipe 81 has a variable diameter structure. An auxiliary pipe 82 is installed at the end of the exhaust pipe 81. The auxiliary pipe 82 passes through the working chamber 3. A partition 83 is installed inside the working chamber 3. The auxiliary pipe 82 is installed on the partition 83.

[0082] The auxiliary pipe 82 is provided with cleaning holes 84, and there are multiple cleaning holes 84.

[0083] During use, the slag cooled by the water-cooled drum slag cooler falls onto the slag discharge conveyor belt 2 at the front end. After being conveyed, it falls onto the slag turning bottom plate 42 that is in contact with it. After continuing to be conveyed, the bottom of the slag discharge conveyor belt 2 contacts the scraper 11, thereby scraping off the slag at the bottom.

[0084] The drive motor 10 is started to drive the rotating shaft 51 to rotate, and the rotating shaft 51 drives the rotating plate 52 to rotate, thereby turning over the slag on the slag turning bottom plate 42 and conveying it to the next slag discharge conveyor belt 2. After a period of use or when the equipment is stopped, the speed of the drive motor 10 can be increased to make the rotating plate 52 and the cleaning plate 63 rotate quickly, thereby generating centrifugal force. When this centrifugal force is greater than the attraction force of the magnet 64, the scraper 11 disengages and can clean the rotating plate 52.

[0085] When the blower 72 is started, the air intake pipe 73 connected to the air intake end of the blower 72 adsorbs the dust at the two locations. After being filtered by the filter screen, the airflow is discharged through the exhaust port end of the blower 72 and enters the auxiliary pipe 82 through the exhaust pipe 81. Finally, it is discharged to the next process for further processing. While in the auxiliary pipe 82, the scraper 11 is cleaned through the exhaust hole. The cleaned slag falls directly and enters the movable slag box 43. Due to the setting of the baffle 83, the internal airflow is ensured to be discharged in an orderly manner to a certain extent.

[0086] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0087] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A general industrial solid waste incineration process, comprising the following steps: S1. Fuel Transportation: The fuel for the solid waste incinerator is industrial solid waste, biochemical sludge, and auxiliary coal. Limestone powder is also co-fired for in-furnace desulfurization. Industrial solid waste is transported to the waste slag bin in front of the furnace by a belt conveyor system. Biochemical sludge is transported by truck to the sludge shed for storage, and then loaded onto the sludge receiving hopper by a loader. It is then transferred to the belt conveyor system by a screw feeder and transported to the sludge bin in front of the furnace. Coal is transported by dump truck to the newly built dry coal shed for storage, and then transported to the coal bin in front of the furnace through coal taking, coal feeding, iron removal, screening, crushing, and conveying. In-furnace desulfurization uses purchased finished limestone powder, which is transported to the plant by powder tanker truck and unloaded into the limestone powder bin. It is then sent to the furnace for desulfurization through a pneumatic conveying device at the bottom of the bin. S2. Industrial solid waste incineration: The solid waste incinerator adopts a circulating fluidized bed furnace; S3, Ash removal: The boiler ash discharge method is solid ash discharge, and the ash discharge method is according to the water-cooled drum ash cooler - ash discharge equipment (1) - ash bin; S4. Flue gas purification: Flue gas is purified by a combination of in-furnace limestone spraying, electrostatic pre-dust removal, out-of-furnace semi-dry acid removal, and bag filter activated carbon adsorption. The slag discharge device (1) includes a slag discharge conveyor belt (2), and multiple slag discharge conveyor belts (2) are provided. A working cavity (3) is provided between two adjacent slag discharge conveyor belts (2). A slag turning mechanism (4) is provided on each working cavity (3). A fixed seat (9) is also provided on the working cavity (3). A drive motor (10) is provided on the fixed seat (9). The drive motor (10) is connected to the slag turning mechanism (4). The drive motor (10) drives the slag turning mechanism (4) to work, thereby turning over the slag on the previous slag discharge conveyor belt (2) and discharging it onto the next slag discharge conveyor belt (2). The slag-turning mechanism (4) includes a slag-turning top plate (41) and a slag-turning bottom plate (42) disposed on the inner side of the top of the working chamber (3). The two sides of the slag-turning bottom plate (42) are close to the two adjacent slag discharge conveyor belts (2). A slag-turning assembly (5) is disposed in the working chamber (3). The slag-turning assembly (5) is used to turn the slag on the slag-turning bottom plate (42) and discharge it into the next slag discharge conveyor belt (2). The slag-turning assembly (5) is connected to the drive motor (10). The bottom of the working chamber (3) is open, and a movable slag box (43) is provided at the bottom. The top plate (41) of the slag turning plate is bent on the side near the previous slag discharge conveyor belt (2), and a slag discharge tail cover (44) is provided on the other side. The slag-turning bottom plate (42) has an arc-shaped structure in the middle. The slag-turning assembly (5) includes a rotating shaft (51) rotatably disposed inside the working cavity (3). The rotating shaft (51) is connected to the output end of the drive motor (10). Multiple rotating plates (52) for turning the slag are evenly arranged on the outer side of the rotating shaft (51). The bottom of the rotating plate (52) is in contact with the slag-turning bottom plate (42). Each rotating plate (52) is provided with a cleaning component (6), which is used to clean the slag attached to the rotating plate (52).

2. The general industrial solid waste incineration process according to claim 1, characterized in that: The cleaning component (6) includes positioning seats (61) on both sides of the rotating plate (52), each of the two positioning seats (61) is provided with a spring (62), and each of the ends of the two springs (62) is provided with a cleaning plate (63). Both the rotating plate (52) and the cleaning plate (63) are equipped with magnets (64) for use in conjunction.

3. The general industrial solid waste incineration process according to claim 2, characterized in that: The working chamber (3) is provided with a scraper (11) at one end near the previous slag discharge conveyor belt (2). The scraper (11) is in contact with the adjacent slag discharge conveyor belt (2) so as to scrape slag from the slag discharge conveyor belt (2).

4. The general industrial solid waste incineration process according to claim 3, characterized in that: The working chamber (3) is also provided with an exhaust assembly (7) for cleaning the dust generated during slag turning on the side near the drive motor (10). The exhaust assembly (7) includes a mounting plate (71) on one side of the working chamber (3). A fan (72) is provided on the mounting plate (71). An air inlet pipe (73) is also connected to the working chamber (3). There are two air inlet pipes (73). The two air inlet pipes (73) are connected at one end adjacent to each other and that end is connected to the air inlet of the fan (72). The exhaust port of the blower (72) is equipped with an auxiliary component (8), which can be used to blow air to clean the scraper (11).

5. The general industrial solid waste incineration process according to claim 4, characterized in that: The auxiliary component (8) includes an exhaust pipe (81) provided at the exhaust port of the fan (72). The exhaust pipe (81) has a variable diameter structure. An auxiliary pipe (82) is provided at the end of the exhaust pipe (81). The auxiliary pipe (82) passes through the working cavity (3). A partition (83) is provided inside the working cavity (3). The auxiliary pipe (82) is installed on the partition (83). The auxiliary pipe (82) is provided with cleaning holes (84), and there are multiple cleaning holes (84).

6. The general industrial solid waste incineration process according to claim 2, characterized in that: The lengths of the multiple slag discharge conveyor belts (2) increase sequentially.

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