CN112696689A - Incineration system and incineration method for dried sludge in furnace - Google Patents
Incineration system and incineration method for dried sludge in furnace Download PDFInfo
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- CN112696689A CN112696689A CN202110137460.9A CN202110137460A CN112696689A CN 112696689 A CN112696689 A CN 112696689A CN 202110137460 A CN202110137460 A CN 202110137460A CN 112696689 A CN112696689 A CN 112696689A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 71
- 238000003860 storage Methods 0.000 claims abstract description 70
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 56
- 230000007480 spreading Effects 0.000 claims abstract description 31
- 238000003892 spreading Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000004056 waste incineration Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 10
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 238000009331 sowing Methods 0.000 claims abstract description 3
- 238000010899 nucleation Methods 0.000 claims description 57
- 239000000446 fuel Substances 0.000 claims description 30
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 12
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- 239000008187 granular material Substances 0.000 description 11
- 239000002956 ash Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
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- 238000011278 co-treatment Methods 0.000 description 2
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- 238000005299 abrasion Methods 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
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Abstract
The invention relates to a dried sludge in-furnace incineration system and an incineration method, wherein the dried sludge in-furnace incineration system comprises: the system comprises a sludge receiving device, a conveying device, a storage bin, a material sowing device and a waste incineration device; the sludge receiving device collects sludge particles, and conveys the sludge particles to the storage bin through the conveying device, and the sludge particles in the storage bin are uniformly scattered on the surface of the garbage along the width direction of the garbage incineration device through the spreading device so as to be conveyed into the hearth along with the garbage for incineration; the garbage incineration device is a household garbage incineration grate furnace and is used for receiving the dried sludge and incinerating the dried sludge in a hearth; the sludge particles are collected at the sludge receiving device and enter the storage bin through the conveying device, the lower part of the storage bin is provided with the material spreading device, the sludge particles are conveyed into the drying section of the furnace garbage incineration grate and are uniformly spread on the surface of garbage for combustion, and the garbage material spreading device comprises a set of sealing air, so that the sludge particles are pushed into the furnace and the reverse channeling of smoke is prevented.
Description
Technical Field
The invention belongs to the technical field of waste incineration treatment, and particularly relates to a dried sludge furnace-entering incineration system and an incineration method.
Background
The sludge is a byproduct generated in daily production processes of garbage incineration power plant leachate stations, municipal sewage treatment stations, paper making and flour production enterprises and the like, the dried sludge refers to sludge which is physically heated to remove most of moisture in the sludge, so that the moisture content of the sludge is lower than 30%, granulation, transportation and burning in a furnace are facilitated, and a burning-in-furnace system is a general name of equipment which conveys the dried sludge into a garbage incinerator for burning through mechanical equipment.
The sludge co-processing of the household garbage incineration power plant is already used in many projects, the common sludge in-furnace incineration technology is to send sludge into a garbage bin or a hopper, and the sludge is mixed with garbage and then is burned in a furnace, but the problems of small treatment capacity, large influence on combustion, easy hardening of a pusher, return of part of sludge to a leachate treatment system and the like exist.
According to statistics, the annual sludge yield of China is about 5000 ten thousand tons at present. The sludge contains a large amount of complex components such as moisture, organic matters, sulfur, chlorine, heavy metals, germs and the like. Therefore, how to properly treat the sludge becomes the focus of the current social attention, and the resource utilization and harmless treatment of the sludge become a serious environmental problem.
Because the heat value of the wet sludge is low, the common waste incineration power plant can only carry out small amount of mixed combustion, and the sludge co-treatment in the plant is realized. Two main modes of wet sludge entering the furnace are as follows: firstly, directly conveying sludge with 80% of water content into a garbage hopper by adopting a screw pump; secondly, the sludge with lower water content (generally 40-50 percent of water content) is sent into a hopper by adopting a scraper, and the sludge and the garbage are mixed in proportion in the two modes and then are sent into the furnace for combustion. But the problems of difficult guarantee of the burnout rate, easy generation of ash accumulation and corrosion on the heated surface of the boiler, low automation degree, difficult realization of uniform furnace entering, easy hardening of sludge after being affected with damp and the like exist.
Therefore, the main problems of sludge incineration in furnaces are as follows: the sludge is difficult to be uniformly mixed with the garbage; the sludge is easy to harden at the feeder, so that the feeder is jammed; part of sludge enters a percolate collecting hopper and then enters a percolate collecting device, so that equipment is blocked and the load of percolate treatment is increased; the sludge with large water content can reduce the heat value of the garbage and influence the combustion condition in the furnace; part of sludge can enter the grate, thereby forming slag leakage and reducing the ventilation rate of the grate; the amount of sludge to be treated is very limited, usually not exceeding 6% of the amount to be treated by the waste incinerator. These factors restrict the reclamation, harmlessness, reduction, and scaling of sludge disposal.
Because the sludge treatment scale is difficult to form obvious economic benefit, and almost all cities are provided with waste incineration power plants, the sludge and waste incineration cooperative treatment is an excellent choice for saving construction cost, increasing the benefit of the waste power plants and treating the sludge in a large scale.
Therefore, it is necessary to develop a new system and method for incinerating dried sludge in a furnace to solve the above problems.
Disclosure of Invention
The invention aims to provide a dried sludge furnace-entering incineration system and an incineration method.
In order to solve the technical problem, the invention provides a dried sludge incinerator incineration system, which comprises: the sludge receiving device, the conveying device, the storage bin, the spreading device and the waste incineration device are arranged in sequence; the storage bin and the spreading device are positioned at the upper part of the waste incineration device, one end of the conveying device is connected with the bottom of the sludge receiving device, and the other end of the conveying device is connected with the top of the storage bin; the garbage incineration device is characterized in that a drying section is arranged in a hearth and used for drying, igniting and incinerating garbage, receiving sludge particles conveyed by a spreading device and laying the sludge particles on the upper surface of garbage fuel; the sludge receiving device is suitable for collecting sludge particles and conveying the sludge particles to the storage bin through the conveying device, namely the sludge particles in the storage bin are uniformly scattered on the surface of the garbage fuel along the width direction of the garbage burning device through the spreading device so as to be sent into a hearth along with the garbage fuel to be burned.
Further, the sludge receiving apparatus includes: the device comprises a sludge receiving hopper and a metering control mechanism arranged at the bottom of the hopper; the bottom of the sludge receiving hopper is connected with a metering control mechanism and a conveying device; the sludge receiving hopper is suitable for collecting sludge particles, and the metering control mechanism controls the opening of the corresponding valve to adjust the flow of the sludge particles conveyed to the top of the storage bin by the conveying device.
Further, the conveying device includes: a vertical hoist and a horizontal conveyor; the import of vertical lifting machine connects mud and receives hopper bottom, the import of the horizontal conveyer of exit linkage of vertical lifting machine, the top of horizontal conveyer's exit linkage storage feed bin, promptly mud granule gets into storage feed bin after vertical lifting machine, horizontal conveyer in proper order in the mud receives the hopper.
Furthermore, a plurality of gate valves are arranged at the connecting part of the horizontal conveyor and the storage bin, and the gate valves are suitable for being opened and closed according to the material level condition in the storage bin, so that the material level of sludge particles in the storage bin is uniform; the storage bin is provided with a plurality of feeding holes and a charge level indicator in the width direction of the boiler, and a gate valve is arranged above the feeding holes; a plurality of discharge gates are established at boiler width direction to the storage feed bin, and every discharge gate top sets up low material level signal.
Further, the material spreading device comprises: a seeding pipe and a seeding device; the inlet of the seeding pipe is connected with the bottom discharge port of the storage bin, the seeding device is arranged in the seeding pipe, the seeding pipe is positioned above the garbage incineration device, and the outlet of the seeding pipe is provided with a seeding nozzle; sludge granules fall into in the storage feed bin and broadcast the material pipe, and control sludge granules flow through broadcasting the glassware, promptly it is suitable for and broadcasts the sludge granules that the glassware was broadcast to broadcast the material nozzle and broadcast on the refuse fuel surface of msw incineration device to send into the furnace along with refuse fuel and burn.
Further, the seeding pipe is provided with a corresponding ash poking port for preventing sludge particles from being blocked; the lower part of the seeding pipe is connected with a corresponding sealing fan to blow and sweep towards the inside of the boiler, so that the seeding nozzle is cooled and the smoke in the boiler is prevented from flowing backwards while sludge particles are sown.
Furthermore, a rotary valve clack is arranged in the material sowing device, and the feeding amount of sludge particles is controlled by controlling the rotating speed of the valve clack.
Further, the waste incineration device includes: a garbage receiving hopper, a pusher and a grate; the stoker is suitable for promoting the refuse fuel that rubbish receiving hopper thrown in to move along the grate surface, in order to burn, and the grate sets up dry section, burning section, burns the ember section along refuse fuel direction of motion.
On the other hand, the invention provides a method for incinerating dried sludge in a furnace, which comprises the following steps: conveying sludge particles into a storage bin for caching; and spreading sludge particles cached in the storage bin on the surface of the refuse fuel so as to be conveyed into the hearth along with the refuse fuel for incineration.
Further, the system is suitable for cooperatively incinerating sludge particles and garbage by adopting the dried sludge in-furnace incineration system.
The invention has the beneficial effects that the sludge particles are collected at the sludge receiving device and enter the storage bin through the conveying device, the lower part of the storage bin is provided with the material spreading device, the sludge particles are conveyed into the drying section in the boiler and are uniformly spread on the surface of garbage for combustion, and the material spreading device is provided with the sealing air, so that the sludge particles are promoted to enter the boiler, the material spreading nozzle is cooled, and the reverse channeling of smoke is prevented.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a dried sludge in-furnace incineration system of the present invention;
FIG. 2 is a block diagram of the seeding tube of the present invention;
FIG. 3 is a flow chart of the method for incinerating dried sludge in a furnace according to the present invention.
In the figure:
the device comprises a sludge receiving device 1, a sludge receiving hopper 11 and a metering control mechanism 12;
the device comprises a conveying device 2, a vertical elevator 21, a horizontal conveyor 22 and a gate valve 23;
a storage bin 3, a high level sensor 31 and a low level sensor 32;
the device comprises a material spreading device 4, a material spreading pipe 41, a first connecting port 411, a second connecting port 412, a third connecting port 413, a dust poking port 414, a lining anti-abrasion ceramic layer 415, a material spreading device 42, a material spreading nozzle 43 and a sealing fan 44;
a garbage incineration device 5, a garbage receiving hopper 51, a grate 52 and a pusher 53;
a boiler 6;
and 8, garbage fuel.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
FIG. 1 is a block diagram of a system for incinerating dried sludge according to the present invention.
In this embodiment, as shown in fig. 1, this embodiment provides a dried sludge incinerator incineration system, which includes: the device comprises a sludge receiving device 1, a conveying device 2, a storage bin 3, a seeding device 4 and a waste incineration device 5 which are arranged in sequence; the storage bin 3 and the spreading device 4 are positioned at the upper part of the waste incineration device 5, one end of the conveying device 2 is connected with the bottom of the sludge receiving device 1, and the other end of the conveying device 2 is connected with the top of the storage bin 3; the garbage incineration device 5 is provided with a drying section in the hearth for drying, igniting and incinerating the garbage, receiving sludge particles 7 conveyed by the spreading device 4 and laying the sludge particles on the upper surface of the garbage fuel 8; sludge receiving arrangement 1 is suitable for and collects sludge granules 7 to carry sludge granules 7 to storage silo 3 through conveyor 2, promptly sludge granules 7 evenly scatter on 8 surfaces of refuse fuel through spreading material device 4 along 5 width direction of refuse incineration device in storage silo 3, in order to send into the furnace along with refuse fuel 8 and burn.
In this embodiment, this embodiment is collected in mud receiving arrangement 1 department through mud granule 7 to get into storage bin 3 through conveyor 2, storage bin 3 lower part is equipped with seeding device 4, realizes sending into mud granule 7 dry section in the waste incineration device 5 and evenly spreads the surface at rubbish and burn, helps promoting mud granule 7 to go into the stove and prevent that the flue gas from scurrying. The lower part of the spreading device 4 is connected with a corresponding sealing fan 44 to blow into the boiler 6, which is helpful for pushing the sludge particles 7 to spread and simultaneously cooling the spreading nozzle 43 and preventing the flue gas in the boiler from flowing backwards.
In the present embodiment, the sludge receiving apparatus 1 includes: a sludge receiving hopper 11 and a metering control mechanism 12 arranged at the bottom of the hopper; the bottom of the sludge receiving hopper 11 is connected with a metering control mechanism 12 and a conveying device 2; the sludge receiving hopper 11 is suitable for collecting sludge particles 7, and the metering control mechanism 12 controls the opening of the corresponding valve so as to regulate the flow of the sludge particles 7 conveyed to the top of the storage bin 3 by the conveying device 2.
In this embodiment, the upper surface of the sludge receiving hopper 11 is almost flush with the ground of the lane, the sludge transport vehicle discharges granulated dried sludge into the sludge receiving hopper 11, the metering control mechanism 12 at the bottom of the sludge receiving hopper 11 is used for preventing sludge particles 7 from entering too many at one time to cause rear equipment blockage or to cut off the sludge to enter the next link, and the sludge particles 7 enter the conveying device 2 after passing through the metering control mechanism 12 at the bottom of the metering control mechanism 12.
In the present embodiment, as an alternative embodiment of the metering control mechanism 12, the metering control mechanism 12 includes: the metering controller controls the opening of the valve according to metering signals collected by the metering sensor so as to control the flow of the sludge particles 7 output to the conveying device 2.
In the present embodiment, the conveying device 2 includes: a vertical lift 21 and a horizontal conveyor 22; the 11 bottoms of hopper are received to the access connection mud of vertical lift 21, the import of the horizontal conveyer 22 of exit linkage of vertical lift 21, the top of storage feed bin 3 is connected to the export of horizontal conveyer 22, promptly sludge granule 7 gets into storage feed bin 3 behind vertical lift 21, horizontal conveyer 22 in proper order in the mud receives hopper 11.
In this embodiment, the vertical elevator 21 may be a bucket elevator, and the horizontal conveyor 22 may be a scraper conveyor, so as to sequentially feed the boilers 6 in the boiler room.
In this embodiment, a plurality of gate valves 23 are arranged at the connection position of the horizontal transporter 22 and the storage bin 3, the gate valves 23 are suitable for being opened and closed according to the material level condition in the storage bin 3, and the driving mode of the gate valves 23 can adopt electric, pneumatic or hydraulic driving so as to facilitate the material level uniformity of the sludge particles 7 in the bin; the storage bin 3 is provided with a plurality of feeding holes and charge level indicators in the width direction of the boiler 6, and a gate valve 23 is arranged above the feeding holes; a plurality of discharge gates are arranged in the storage bin 3 in the width direction of the boiler 6, and a low material level signal is arranged above each discharge gate.
In this embodiment, a high level sensor 31 (in this embodiment, a rotation-resistant level meter and a low level sensor 32 (in this embodiment, a rotation-resistant level meter) are provided in the storage bin 3 to collect a level signal in the storage bin 3, and the gate valve 23 has a corresponding gate controller for receiving the level signal in the storage bin 3 and controlling the gate valve 23 to open or close according to the level signal in the storage bin 3.
Storage feed bin 3 is located 6 front portions of boiler, wholly is the flat elongated, and storage feed bin 3 evenly sets up a plurality of inlet pipes along the 6 left right direction of boiler, and the inlet pipe communicates with each other with upper portion horizontal transport machine 22 bottom, sets up high level sensor 31 on the storage feed bin 3, low level sensor 32, closes corresponding gate valve 23 when high level signal appears, cuts off metering control mechanism 12 when all high level signal all appear, when low level signal appears, stops to broadcast material device 4 operation, opens corresponding gate valve 23.
In this embodiment, storage silo 3 sets up between boiler 6 first row steelframe and feed span civil engineering outer wall, does not occupy the boiler room space.
Fig. 2 is a block diagram of the seeding tube of the present invention.
In this embodiment, as shown in fig. 2, the seeding device 4 includes: a seeding pipe 41 and a seeding device 42; an inlet of the seeding pipe 41 is connected with a discharge port at the bottom of the storage bin 3, the seeding device 42 is arranged in the seeding pipe 41, the seeding pipe 41 is positioned above the waste incineration device 5, and an outlet of the seeding pipe 41 is provided with a seeding nozzle 43; the sludge particles 7 in the storage bin 3 fall into the seeding pipe 41, and the flow of the sludge particles 7 is controlled by the seeding device 42, namely, the seeding nozzle 43 is suitable for seeding the sludge particles 7 played by the seeding device 42 on the surface of the garbage fuel 8 of the garbage incineration device 5 so as to be sent into the hearth along with the garbage fuel 8 for incineration.
In this embodiment, the upper end of the seeding pipe 41 is connected to the distributor 42 through a first connection port 411, the lower end of the seeding pipe 41 is connected to the distribution nozzle 43 through a second connection port 412, the distribution nozzle 43 is located in the front arch of the furnace, the distribution nozzle 43 is made of heat-resistant stainless steel, the middle part of the seeding pipe 41 is connected to the sealing fan 44 through a third connection port 413, the inner surface of the seeding pipe 41 is provided with a lining wear-resistant ceramic layer 415 to prolong the service life of the seeding pipe 41, the end part of the seeding pipe 41 is connected to the corresponding component through a flange port, and the axis of the flange coincides with the axis of the outlet.
In this embodiment, the plurality of seeding pipes 41 and the plurality of seeding devices 42 are uniformly arranged along the left and right direction of the waste incineration device 5, so as to realize uniform seeding into the boiler 6, and the material inlet of a certain area can be independently opened according to the combustion condition in the boiler 6.
In this embodiment, the seeding pipe 41 is provided with a corresponding ash poking port 414 for preventing the sludge particles 7 from being blocked; the lower part of the seeding pipe 41 is connected with a corresponding sealing fan 44 to blow and sweep towards the interior of the boiler 6, so that the seeding nozzle 43 is cooled and the flue gas in the boiler is prevented from flowing backwards while the sludge particles 7 are sown.
In the present embodiment, the seal air blower 44 blows seal air into the boiler 6 through the respective seal air ducts.
In this embodiment, the seeding device 42 is provided with a rotary valve flap, and the amount of the sludge particles 7 fed into the furnace is controlled by controlling the rotation speed of the valve flap.
In this embodiment, the sealing fan 44 provides a path of sealing air to serve as secondary air, which helps to push the sludge particles 7 into the boiler 6 and prevent the flue gas from flowing backwards, and also serves as an air cushion for the sludge particles 7 to flow, so as to slow down the impact of the sludge particles 7 on the port of the seeding pipe 41 and push the sludge particles 7 into the boiler 6 to be scattered in the furnace.
In this embodiment, the inside of the feeder 42 is provided with a rotary valve flap, the rotary valve flap is suitable for controlling the amount of the sludge particles 7 entering the boiler, a certain gap is left between the rotary valve flap and the cavity of the feeder 42, so as to prevent the sludge particles 7 from being cut into pieces when the rotary valve flap rotates, and the feeder 42 controls the rotation speed of the rotary valve flap by controlling the rotation speed of the driving motor, so as to control the amount of the sludge particles 7 entering the boiler 6.
In the present embodiment, the waste incineration apparatus 5 includes: a waste receiving hopper 51, a pusher 53 and a grate 52; the stoker 53 is suitable for pushing the garbage fuel 8 thrown in the garbage receiving hopper 51 to move along the surface of the fire grate 52 for incineration, and the fire grate 52 is provided with a drying section, a combustion section and an ember section along the movement direction of the garbage fuel 8.
In the embodiment, the sludge particles 7 are burned on the upper surface of the waste fuel 8 on the grate 52, high-temperature flue gas generated by burning is used for heating the waste heat boiler 6 to generate steam and pushing the turbonator to do work and generate power, the cooled flue gas enters the purification system to be treated and discharged into the atmosphere after reaching the standard, and ash and slag generated by burning and the ash and slag generated by burning enter the slag conveyor together with the ash and slag burnt by burning the waste and are collected for brick making, paving and the like.
Example 2
FIG. 3 is a flow chart of the method for incinerating dried sludge in a furnace according to the present invention.
On the basis of embodiment 1, as shown in fig. 3, this embodiment provides a method for incinerating dried sludge in a furnace, which includes: conveying the sludge particles 7 to a storage bin 3 for caching; and (3) spreading sludge particles 7 cached in the storage bin 3 on the surface of the garbage fuel 8 so as to be sent into a hearth along with the garbage fuel 8 for incineration.
In this embodiment, it is suitable to use the dried sludge incinerator incineration system as provided in example 1 to incinerate sludge particles 7 in conjunction with waste fuel.
In this embodiment, the system for incinerating dried sludge is described in the above embodiments.
In conclusion, the sludge particles are collected at the sludge receiving device and enter the storage bin through the conveying device, and the spreading device is arranged at the lower part of the storage bin, so that the sludge particles are conveyed into the drying section of the garbage incineration device and are uniformly spread on the surface of garbage for combustion, the sludge particles are promoted to enter the furnace, and the reverse channeling of smoke is prevented; the sludge co-treatment amount is large, and the ratio of the sludge to the garbage is 0.2:1 to 1: 1; the dried sludge has high heat value, is convenient to convey after granulation, saves the transportation cost and promotes the combustion in the furnace; the problems of uneven mixing and equipment failure caused when the sludge enters from the hopper are avoided; the layered combustion is realized, and the sludge combustion efficiency is high; after granulation, the mixture enters a furnace, so that the fly ash amount in the furnace is small, and the influence on the boiler is small; the unique sealing air system effectively prevents the positive pressure smoke in the furnace from flowing backwards to cause tempering damage to equipment; the uniform and continuous feeding is realized by controlling the rotating speed of the material distributor; the incineration heat can be used for power generation, and the economic benefit of the whole plant is improved; the investment cost for ton treatment is low, and independent equipment and places are not needed for treating the sludge; the ash after incineration is useful and does not need to be disposed separately.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a mummified sludge burning system that goes into stove which characterized in that includes:
the sludge receiving device, the conveying device, the storage bin, the spreading device and the waste incineration device are arranged in sequence; wherein
The storage bin and the spreading device are positioned at the upper part of the waste incineration device, one end of the conveying device is connected with the bottom of the sludge receiving device, and the other end of the conveying device is connected with the top of the storage bin;
the garbage incineration device is characterized in that a drying section is arranged in a hearth and used for drying, igniting and incinerating garbage, receiving sludge particles conveyed by a spreading device and laying the sludge particles on the upper surface of garbage fuel;
the sludge receiving device is adapted to collect sludge particles and to transport the sludge particles to a storage silo by means of a transport device, i.e.
Sludge particles in the storage bin are uniformly scattered on the surface of the refuse fuel along the width direction of the refuse burning device through the spreading device so as to be sent into the hearth along with the refuse fuel to be burned.
2. The incinerator incineration system of dried sludge according to claim 1,
the sludge receiving device comprises: the device comprises a sludge receiving hopper and a metering control mechanism arranged at the bottom of the hopper;
the bottom of the sludge receiving hopper is connected with a metering control mechanism and a conveying device;
the sludge receiving hopper is suitable for collecting sludge particles, and the metering control mechanism controls the opening of the corresponding valve to adjust the flow of the sludge particles conveyed to the top of the storage bin by the conveying device.
3. The incinerator incineration system of dried sludge according to claim 2,
the conveying device comprises: a vertical hoist and a horizontal conveyor;
the inlet of the vertical elevator is connected with the bottom of the sludge receiving hopper, the outlet of the vertical elevator is connected with the inlet of the horizontal conveyer, and the outlet of the horizontal conveyer is connected with the top of the storage bin, namely
And sludge particles in the sludge receiving hopper sequentially pass through the vertical elevator and the horizontal conveyor and then enter the storage bin.
4. The incinerator incineration system of dried sludge according to claim 3,
a plurality of gate valves are arranged at the connecting part of the horizontal conveyor and the storage bin, and the gate valves are suitable for being opened and closed according to the material level condition in the storage bin so as to facilitate the material level uniformity of sludge particles in the storage bin;
the storage bin is provided with a plurality of feeding holes and a charge level indicator in the width direction of the boiler, and a gate valve is arranged above the feeding holes;
a plurality of discharge gates are established at boiler width direction to the storage feed bin, and every discharge gate top sets up low material level signal.
5. The incinerator incineration system of dried sludge according to claim 1,
the material sowing device comprises: a seeding pipe and a seeding device;
the inlet of the seeding pipe is connected with the bottom discharge port of the storage bin, the seeding device is arranged in the seeding pipe, the seeding pipe is positioned above the garbage incineration device, and the outlet of the seeding pipe is provided with a seeding nozzle;
the sludge particles in the storage bin fall into the seeding pipe and the flow of the sludge particles is controlled by the seeding device, namely
The spreading nozzle is suitable for spreading sludge particles spread by the spreading device on the surface of the garbage fuel of the garbage incineration device so as to be sent into the hearth along with the garbage fuel for incineration.
6. The incinerator incineration system of dried sludge according to claim 5,
the seeding pipe is provided with a corresponding ash poking port for preventing sludge particles from being blocked;
the lower part of the seeding pipe is connected with a corresponding sealing fan to blow and sweep towards the inside of the boiler, so that the seeding nozzle is cooled and the smoke in the boiler is prevented from flowing backwards while sludge particles are sown.
7. The incinerator incineration system of dried sludge according to claim 5,
the seeding device is internally provided with a rotary valve clack, and the feeding amount of sludge particles is controlled by controlling the rotating speed of the valve clack.
8. The incinerator incineration system of dried sludge according to claim 5,
the waste incineration device comprises: a garbage receiving hopper, a pusher and a grate;
the stoker is suitable for promoting the refuse fuel that rubbish receiving hopper thrown in to move along the grate surface, in order to burn, and the grate sets up dry section, burning section, burns the ember section along refuse fuel direction of motion.
9. A method for incinerating dried sludge in a furnace is characterized by comprising the following steps:
conveying sludge particles into a storage bin for caching;
and spreading sludge particles cached in the storage bin on the surface of the refuse fuel so as to be conveyed into the hearth along with the refuse fuel for incineration.
10. The incinerator incineration method of dried sludge according to claim 9,
is suitable for the cooperative incineration of sludge particles and garbage by using the dried sludge incinerator incineration system as defined in any one of claims 1 to 8.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753181A (en) * | 1984-07-20 | 1988-06-28 | Leon Sosnowski | Incineration process |
| CN205878183U (en) * | 2016-08-17 | 2017-01-11 | 北京北发建设发展有限公司 | Grate waste incinerator's mud feeder |
| CN107255285A (en) * | 2017-06-02 | 2017-10-17 | 绿色动力环保集团股份有限公司 | A kind of method and system of three driving grate furnace mixed burning house refuse and sludge |
| CN111412478A (en) * | 2020-04-10 | 2020-07-14 | 上海东石塘再生能源有限公司 | Household garbage incinerator for cooperatively treating dried sludge and treatment method thereof |
-
2021
- 2021-02-01 CN CN202110137460.9A patent/CN112696689A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4753181A (en) * | 1984-07-20 | 1988-06-28 | Leon Sosnowski | Incineration process |
| CN205878183U (en) * | 2016-08-17 | 2017-01-11 | 北京北发建设发展有限公司 | Grate waste incinerator's mud feeder |
| CN107255285A (en) * | 2017-06-02 | 2017-10-17 | 绿色动力环保集团股份有限公司 | A kind of method and system of three driving grate furnace mixed burning house refuse and sludge |
| CN111412478A (en) * | 2020-04-10 | 2020-07-14 | 上海东石塘再生能源有限公司 | Household garbage incinerator for cooperatively treating dried sludge and treatment method thereof |
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Application publication date: 20210423 |