CN111483812A - Biomass positive-pressure alternate continuous feeding system - Google Patents

Biomass positive-pressure alternate continuous feeding system Download PDF

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Publication number
CN111483812A
CN111483812A CN202010384744.3A CN202010384744A CN111483812A CN 111483812 A CN111483812 A CN 111483812A CN 202010384744 A CN202010384744 A CN 202010384744A CN 111483812 A CN111483812 A CN 111483812A
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CN
China
Prior art keywords
feeding
feeding bin
inserting plate
bin
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010384744.3A
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Chinese (zh)
Inventor
夏良伟
王凤君
于强
孙浩
李伟
左国华
王明昊
高维广
孙长鑫
贾庚
庞振洲
翟胜兵
刘建宏
王广猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Boiler Co Ltd
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Harbin Boiler Co Ltd
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Filing date
Publication date
Application filed by Harbin Boiler Co Ltd filed Critical Harbin Boiler Co Ltd
Priority to CN202010384744.3A priority Critical patent/CN111483812A/en
Publication of CN111483812A publication Critical patent/CN111483812A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/36—Arrangements of containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/48—Screws or like rotary conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus

Abstract

A biomass positive-pressure alternate continuous feeding system relates to a continuous feeding system. The biomass feeding system aims to solve the problems of blockage, filling and high-temperature flue gas backflow in the conventional biomass feeding system. The first feeding bin and the second feeding bin are identical in structure and are connected with a hearth, the first feeding bin comprises a sealing inserting plate door, a feeding bin, an activation double-spiral feeding mechanism, a fireproof sealing inserting door, a single-spiral feeding mechanism, a pressurizing pipeline, a vibrator and a connecting section, the sealing inserting plate door is installed at the upper end of the feeding bin, the pressurizing pipeline is installed at the middle upper part of the feeding bin, the vibrator is installed on the outer side wall of the lower part of the feeding bin, the activation double-spiral feeding mechanism is installed at the lower end of the feeding bin, the single-spiral feeding mechanism is installed below the activation double-spiral feeding mechanism, the single-spiral feeding mechanism and the activation double-spiral feeding mechanism are connected through the connecting section, and the fireproof sealing inserting door is inserted into the connecting section. The invention is used for biomass positive pressure alternate continuous feeding.

Description

Biomass positive-pressure alternate continuous feeding system
Technical Field
The invention relates to a feeding system. In particular to a biomass positive pressure alternate continuous feeding system.
Background
The biomass power generation technology is an energy-saving and environment-friendly advanced power generation technology, which is divided into three power generation technologies of biomass direct combustion, mixed combustion and biomass gasification at present, and the technologies have high requirements on the continuity, stability and safety of biomass feeding. If the feeding system has problems, the operation of the biomass incinerator or the biomass gasifier can be affected, and accidents such as fire or even explosion of the feeding system can be caused.
The existing biomass feeding system mainly has two problems: (1) blocking and filling of a feeding system: any biomass power generation system requires stable feeding, and if the blockage occurs, the load of a biomass incinerator or a biomass gasification furnace can fluctuate greatly, even the furnace is shut down, and huge loss is caused to the whole system and production; (2) high-temperature flue gas reflux: for a positive pressure furnace with frequent pressure fluctuation and poor tightness of a feeding system, high-temperature flue gas in the furnace is easy to flow backwards into the feeding system to cause ignition, and particularly for the positive pressure furnace, the flue gas contains a large amount of combustible gas (such as carbon monoxide, methane, hydrogen and the like), and the flue gas can possibly flow backwards into the feeding system to cause explosion.
In conclusion, the existing biomass feeding system has the problems of blockage, material blocking and high-temperature flue gas backflow.
Disclosure of Invention
The invention aims to solve the problems of blockage, filling and high-temperature flue gas backflow of the conventional biomass feeding system. Further provides a biomass positive pressure alternate continuous feeding system.
The technical scheme of the invention is as follows: a biomass positive-pressure alternate continuous feeding system comprises a first feeding bin and a second feeding bin, wherein the first feeding bin and the second feeding bin are connected with a hearth, and the first feeding bin and the second feeding bin have the same structure; first feed bin is including sealed picture peg door, feed bin, two spiral feed mechanisms of activation, the sealed picture peg of fire prevention, single spiral feed mechanism, the pressurization pipeline, knocker and linkage segment, the upper end at feed bin is installed to sealed picture peg door, the pressurization pipeline is installed on the well upper portion of feeding bin, the knocker is installed on the lateral wall of feeding bin lower part, the lower extreme at feed bin is installed to two spiral feed mechanisms of activation, single spiral feed mechanism installs the below at two spiral feed mechanisms of activation, and be connected through the linkage segment between single spiral feed mechanism and the two spiral feed mechanisms of activation, the sealed picture peg cartridge of fire prevention is on the linkage segment.
Further, the feeding bin is a conical feeding bin.
Furthermore, the sealing inserting plate door comprises a front valve body, a rear valve body, an inserting plate, an adjustable supporting wheel component, a hinge, a locking mechanism, a compressed gas purging port, a connecting rod, a cylinder and a shell, wherein the front valve body is horizontally connected with the rear valve body, the shell is arranged on the right side of the rear valve body, the cylinder is horizontally arranged on the right side of the shell, the connecting rod is horizontally arranged in the shell, one end of the connecting rod is connected with the telescopic end of the cylinder, the other end of the connecting rod is connected with the inserting plate, the adjustable supporting wheel component is arranged in the front valve body and the rear valve body, the inserting plate is driven by the connecting rod to horizontally move on the adjustable supporting wheel component, the upper part of the inserting plate is provided with a feeding hole, the lower part of the inserting plate is provided with a discharging hole, the compressed gas purging hole is arranged on the front valve body, and the compressed gas purging port is opposite to the inserting plate, the locking mechanism is fixedly arranged at the lower part of the front end of the inserting plate, the hinge is arranged on the inner side wall of the front valve body, and the locking mechanism is driven by the inserting plate to touch the hinge.
Furthermore, the front end of the inserting plate is wedge-shaped.
Further, activation double helix feed mechanism includes first motor, double helix auger and a plurality of switch-off blades, and double helix auger horizontal installation is at the lower extreme of feeding the storehouse, and first motor is installed in the outside of feeding the storehouse, and the output shaft of first motor drives double helix auger horizontal rotation, and a plurality of switch-off blades are installed at the middle part of double helix auger.
Furthermore, the tail end of the kick-out plate is provided with saw teeth.
Furthermore, the single-spiral feeding mechanism comprises a second motor, a feeding channel and a single-spiral packing auger, the upper end of one side of the feeding channel is connected with the connecting section, the other side of the feeding channel is connected with the hearth, the single-spiral packing auger is horizontally arranged in the feeding channel, one end of the single-spiral packing auger is connected with an output shaft of the second motor arranged outside the feeding channel, and the other end of the single-spiral packing auger extends into the hearth.
Furthermore, the discharge side of the single-spiral auger extending into the hearth is a variable-pitch auger.
Furthermore, the pressurizing pipeline is connected with a fan or an external air pump.
Furthermore, the locking mechanism comprises a mounting plate and a bolt, the mounting plate is mounted on the lower portion of the front end of the inserting plate, the bolt is mounted on the mounting plate, and the mounting position of the bolt corresponds to the hinge.
Compared with the prior art, the invention has the following effects:
1. the invention relates to a biomass positive-pressure alternate continuous feeding system, which realizes continuous feeding into a hearth through a first feeding bin A and a second feeding bin B, and effectively solves the problem of furnace shutdown caused by the fact that no biomass briquette exists in a bin when only one feeding bin is provided. The invention is particularly suitable for feeding biomass briquettes.
2. The sealing inserting plate door 1 and the fireproof sealing inserting door 4 have the same structure, the sealing of the valve body on the inserting plate and the valve body of the feeding hole can be ensured through the structural matching of the locking mechanism, the hinge, the inserting plate and the adjustable riding wheel, and the sealing can not be remained even if dust, fine crushed and large materials are available everywhere, so that the sealing purpose is finally achieved.
3. The invention arranges the vibrator outside the feeding bin, which can avoid the problem of material filling in the feeding bin and ensure the system safety.
4. The invention is not only suitable for biomass boilers with negative pressure, micro negative pressure and normal pressure, but also suitable for biomass boilers or gasification furnaces with positive pressure within 10KPa, and can effectively avoid high-temperature flue gas from flowing backwards.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the first feeding bin a or the second feeding bin B.
Fig. 3 is a front view of the sealing-panel door 1.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a side view of fig. 3.
Fig. 6 is a schematic structural view of the sealing panel door 1 in an inserted state.
Fig. 7 is a schematic view of the structure of the closure strip door 1 without the closure strip.
Detailed Description
The first embodiment is as follows: the biomass positive pressure alternate continuous feeding system of the embodiment includes a first feeding bin a and a second feeding bin B, the first feeding bin a and the second feeding bin B are connected with a furnace C, and the first feeding bin a and the second feeding bin B have the same structure; first feed bin A is including sealed picture peg door 1, feed bin 2, two spiral feed mechanism 3 of activation, the sealed picture peg door 4 of fire prevention, single spiral feed mechanism 5, pressurization pipeline 6, rapping apparatus 7 and linkage segment 8, sealed picture peg door 1 is installed in the upper end of feeding bin 2, pressurization pipeline 6 is installed on the well upper portion of feeding bin 2, rapping apparatus 7 is installed on the lateral wall of feeding bin 2 lower part, the lower extreme at feeding bin 2 is installed to two spiral feed mechanism 3 of activation, the below at two spiral feed mechanism 3 is installed to single spiral feed mechanism 5, and be connected through linkage segment 8 between two spiral feed mechanism 5 of single spiral feed mechanism and the two spiral feed mechanism 3 of activation, 4 cartridge of sealed picture peg door of fire prevention are on linkage segment 8.
The sealing inserting plate door 1 of the embodiment plays a role in sealing the feeding bin and prevents smoke from flowing backwards; the feeding bin 2 stores biomass ready to enter a hearth, and the structure of the feeding bin ensures that the biomass is not covered; the discharge port of the activating double-helix feeding mechanism 3 is arranged in the middle, and the helical blades on the two sides are reversely arranged, so that the biomass in the feeding bin can be conveyed to the discharge port in the middle; the fireproof sealing inserting door 4 plays a role in isolating the feeding bin from the pressure of the hearth, sealing the feeding bin, blocking the reverse flow of smoke and protecting a feeding system in an accident state (such as overhigh pressure of the hearth); the single-screw feeding mechanism 5 is used for feeding the biomass into the hearth, the inlet of the single-screw feeding mechanism is in a full-filling state, and a variable-pitch structure is adopted at the outlet end, so that the biomass is compacted to form a self-sealing effect, and the reverse channeling of smoke can be prevented; the vibrator 7 is started under special conditions to play a role in preventing material fluffing; other auxiliary instruments (a material level meter, temperature monitoring, pressure monitoring, carbon monoxide monitoring and the like) are arranged in the hearth. The first feeding bin A and the second feeding bin B alternately operate.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1, and the feed bin 2 of the present embodiment is a conical feed bin. Due to the arrangement, the biomass pressing block in the feeding bin can move downwards smoothly, and other components and connection relations are the same as those of the first specific embodiment.
The third concrete implementation mode: the embodiment is described by combining fig. 1 to 7, the sealing inserting plate door 1 of the embodiment comprises a front valve body 1-1, a rear valve body 1-2, an inserting plate 1-3, an adjustable supporting wheel assembly 1-4, a hinge 1-5, a locking mechanism 1-6, a compressed gas purging port 1-7, a connecting rod 1-10, a cylinder 1-11 and a shell 1-13, wherein the front valve body 1-1 and the rear valve body 1-2 are horizontally connected, the shell 1-13 is arranged on the right side of the rear valve body 1-2, the cylinder 1-11 is horizontally arranged on the right side of the shell 1-13, the connecting rod 1-10 is horizontally arranged in the shell 1-13, one end of the connecting rod 1-10 is connected with the telescopic end of the cylinder 1-11, the other end of the connecting rod 1-10 is connected with the inserting plate 1-3, the adjustable supporting wheel assembly 1-4 is installed in the front valve body 1-1 and the rear valve body 1-2, the inserting plate 1-3 is driven by the connecting rod 1-10 to move horizontally on the adjustable supporting wheel assembly 1-4, the upper portion of the inserting plate 1-3 is provided with a feeding hole 1-8, the lower portion of the inserting plate 1-3 is provided with a discharging hole 1-9, the compressed gas purging hole 1-7 is installed on the front valve body 1-1, the compressed gas purging hole 1-7 is opposite to the inserting plate 1-3, the locking mechanism 1-6 is fixedly installed at the lower portion of the front end of the inserting plate 1-3, the hinge 1-5 is installed on the inner side wall of the front valve body 1-1, and the locking mechanism 1-6 is driven by the inserting plate 1-3 to touch the hinge 1.
By the arrangement, the sealing inserting plate door is not only suitable for negative pressure, micro-negative pressure and normal pressure biomass boilers, but also suitable for positive pressure biomass boilers or gasification furnace feeding systems with the pressure within 10KPa, zero leakage is ensured, and high-temperature flue gas is effectively prevented from flowing backwards; the sealed inserting plate door can effectively solve the problems of unsmooth opening and closing, jamming, blockage, high failure rate and the like after frequent opening and closing; the sealing inserting plate door can be opened and closed quickly, and the opening and closing are continuous and reliable, so that the operation requirement is met; the sealing inserting plate door can solve the inserting plate sealing problem of large-caliber biomass feeding, and the size of the sealing inserting plate door can be applied to more than 200 mm. Other compositions and connections are the same as in the first or second embodiments.
After the front valve body 1-1 and the rear valve body 1-2 are manufactured, the sealing surfaces of the front valve body 1-1 and the rear valve body 1-2 and the inserting plate are processed in a mechanical integral finish machining and grinding mode, so that reliable sealing is ensured;
in the embodiment, the locking mechanisms are respectively adjusted under the initial closing state of the flashboard door, so that the front end of the flashboard and the front end of the valve body are reliably sealed; and under the initial closing state of the flashboard door, the adjustable riding wheels are respectively adjusted to ensure that the sealing surface of the flashboard is reliably sealed with the sealing surface of the valve body. Therefore, the impurities on the sealing surface can be removed and the sealing effect can be achieved.
In order to achieve the purposes of blocking prevention, blockage prevention and continuous reliability, the anti-blocking device is mainly manufactured by adopting the following structure and mode: 1. the inserting plate adopts a built-in adjustable supporting roller structure (the supporting rollers are arranged at the lower part and the inner side of the feeding hole), so that the supporting rollers can be prevented from being blocked by materials and impurities, and the movement resistance of the inserting plate can be reduced; 2. two material guide grooves are formed in the front end and the rear end of the valve body, so that materials and impurities are completely separated from the plug board and the valve body in the frequent opening and closing processes of the plug board door; 3, compressed gas purging is arranged at the periphery of the sealing surface, the guide rail, the riding wheel, the hinge and the like, so that impurities cannot stay and adhere to the transmission part and the sealing surface, and the feeding bin can be pressurized at the same time; 4. the size of the discharge hole is larger than that of the feed inlet, so that the materials entering the feed inlet are completely discharged, and the materials are prevented from being accumulated at the discharge hole.
The working principle of the sealing inserting plate door 1 is as follows: 1. the inserting plate door is driven by a cylinder, and the air source pressure is 0.5-0.8 Mpa; 2. before the inserting plate door is opened, the guide rail, the supporting wheel and the locking mechanism are purged for 15-30S; after purging is finished, the inserting plate door performs opening action, and after the inserting plate door reaches an opening position, the inserting plate door stops opening instructions; 3. before the gate is closed, purging the guide rail, the riding wheel and the locking mechanism for 15-30S; and (5) after purging is finished, closing the inserting plate door, and stopping the closing instruction of the inserting plate door after the inserting plate door reaches the closed position.
The fourth concrete implementation mode: the present embodiment will be described with reference to fig. 6 and 7, and the front ends of the insert boards 1 to 3 of the present embodiment are wedge-shaped. By the arrangement, materials, impurities and the like adhered to the sealing surface of the valve body can be effectively removed, reliable sealing of the inserting plate door in a closed state is ensured, and the materials are prevented from being blocked; other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, the activated double-helix feeding mechanism 3 of the embodiment comprises a first motor 3-1, a double-helix auger 3-2 and a plurality of material shifting plates 3-3, the double-helix auger 3-2 is horizontally arranged at the lower end of a feeding bin 2, the first motor 3-1 is arranged outside the feeding bin 2, an output shaft of the first motor 3-1 drives the double-helix auger 3-2 to horizontally rotate, and the plurality of material shifting plates 3-3 are arranged in the middle of the double-helix auger 3-2. So set up, be convenient for gather the living beings briquetting that is located the feed bin both ends to the centre, concentrate and carry the living beings briquetting in next process. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The number of the material poking plates 3-3 is 4, 6 or 8, and the material poking plates are fixedly arranged in the middle of the double-helix auger 3-2 in an annular array mode. The biomass briquette is convenient to be dialed downwards.
The first motor 3-1 of the embodiment is connected with the double-helix auger 3-2 through the speed reducer, so that the speed can be conveniently adjusted.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 and 2, and the tips of the switch plates 3 to 3 of the present embodiment are provided with serrations. So set up, be convenient for pull down the living beings briquetting. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: the embodiment is described with reference to fig. 1 and 2, the single-screw feeding mechanism 5 of the embodiment includes a second motor 5-1, a feeding channel 5-2 and a single-screw auger 5-3, the upper end of one side of the feeding channel 5-2 is connected with a connecting section 8, the other side of the feeding channel 5-2 is connected with a furnace chamber C, the single-screw auger 5-3 is horizontally installed in the feeding channel 5-2, one end of the single-screw auger 5-3 is connected with an output shaft of the second motor 5-1 installed outside the feeding channel 5-2, and the other end of the single-screw auger 5-3 extends into the furnace chamber C. So set up, be convenient for carry the living beings briquetting in the furnace. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1 and 2, and the discharging side of the single-screw auger 5-3 extending into the hearth C is a variable-pitch auger. So set up, make the living beings compaction, form the effect of self sealss, can prevent that the flue gas from scurrying. Other constitutions and connection relations are the same as those of any one of the first to seventh embodiments.
The specific implementation method nine: the present embodiment is described with reference to fig. 1 and 2, and the pressurizing pipeline 6 of the present embodiment is connected to a blower or an external air pump. So set up, be convenient for let in atmospheric pressure, prevent that high temperature flue gas from scurrying. Other compositions and connection relations are the same as those of any one of the first to eighth embodiments.
The detailed implementation mode is ten: referring to fig. 7, the locking mechanism 1-6 of the present embodiment includes a mounting plate 1-6-1 and a bolt 1-6-2, the mounting plate 1-6-1 is mounted on the lower portion of the front end of an insert plate 1-3, the bolt 1-6-2 is mounted on the mounting plate 1-6-1, and the mounting position of the bolt 1-6-2 corresponds to the hinge 1-5. So set up, simple structure, the manufacturing of being convenient for guarantees sealedly. Other components and connection relationships are the same as those in any one of the first to ninth embodiments.
The working principle of the invention is as follows:
the feeding method of the biomass positive-pressure alternate continuous feeding system comprises the following steps:
the method comprises the following steps: initial state of the feed bin:
the first feeding bin A and the second feeding bin B are fed to a high level (nearly full); the sealing flashboard doors of the first feeding bin A and the second feeding bin B are closed; single-screw operation of a first feeding bin A and a second feeding bin B; the fireproof sealing flashboard doors of the first feeding bin A and the second feeding bin B are closed; stopping the activated double spirals of the first feeding bin A and the second feeding bin B;
the specific action process is as follows:
feeding work of the first feeding bin A;
opening a fireproof sealing inserting plate door of the first feeding bin A;
the feeding bin of the first feeding bin A is pressurized to be higher than the pressure of the hearth;
the activation double-helix feeding mechanism 3 of the first feeding bin A operates;
the material in the feeding bin of the first feeding bin A reaches the bottom material level;
the activated double-helix feeding mechanism 3 of the first feeding bin A stops;
the connecting section of the first feeding bin A is free of materials;
the fireproof sealing flashboard door of the first feeding bin A is closed;
the feeding bin of the first feeding bin A stops pressurizing;
the fireproof sealing inserting plate door of the second feeding bin B is opened (the sealing inserting plate door of the first feeding bin A is synchronously opened, the belt of the first feeding bin A starts to feed to a high material level, and the sealing inserting plate door of the first feeding bin A is closed);
the feeding bin of the second feeding bin B is pressurized to be higher than the pressure of the hearth;
the active double-helix feeding mechanism 3 of the second feeding bin B operates;
the material in the feeding bin of the second feeding bin B reaches the bottom material level;
the activated double-helix feeding mechanism 3 of the second feeding bin B stops;
the connecting section of the second feeding bin B is free of materials;
the fireproof sealing flashboard door of the second feeding bin B is closed;
the feeding bin of the second feeding bin B stops pressurizing;
the sealing flashboard door of the second feeding bin B is synchronously opened, the belt of the second feeding bin B starts to feed to a high material level, and the sealing flashboard door of the second feeding bin B is closed.
Step two: feeding of a first feeding bin A and a second feeding bin B
First feed bin A and second feed bin B feed bin carry the living beings to furnace in turn, when first feed bin A feeds the feed bin feed promptly, second feed bin B feeds the feed bin feed and keeps standby state, when first feed bin A does not have the material in the feed bin, second feed bin B feeds the feed bin and starts the feed immediately, and first feed bin A feeds the feed bin and begins the feed and keeps standby state simultaneously, so reciprocal.
The single screw is used for controlling the feeding amount, and the activation double-screw feeding mechanism 3 is used for ensuring that the biomass in the feeding bin is always in a low-speed flowing state and is conveyed to the single-screw inlet, so that the single-screw inlet is in a full-filling state.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A biomass positive pressure alternate continuous feeding system is characterized in that: the furnace hearth feeding device comprises a first feeding bin (A) and a second feeding bin (B), wherein the first feeding bin (A) and the second feeding bin (B) are connected with a furnace hearth (C), and the first feeding bin (A) and the second feeding bin (B) have the same structure; the first feeding bin (A) comprises a sealed inserting plate door (1), a feeding bin (2), an activating double-spiral feeding mechanism (3), a fireproof sealed inserting door (4), a single-spiral feeding mechanism (5), a pressurizing pipeline (6), a vibrator (7) and a connecting section (8), the sealed inserting plate door (1) is installed at the upper end of the feeding bin (2), the pressurizing pipeline (6) is installed at the middle upper part of the feeding bin (2), the vibrator (7) is installed on the outer side wall of the lower part of the feeding bin (2), the vibrating end of the vibrator (7) extends into the feeding bin (2), the activating double-spiral feeding mechanism (3) is installed at the lower end of the feeding bin (2), the single-spiral feeding mechanism (5) is installed below the double-spiral feeding mechanism (3), and the single-spiral feeding mechanism (5) and the activating double-spiral feeding mechanism (3) are connected through the connecting section (8), the fireproof sealing inserting door (4) is inserted on the connecting section (8).
2. The positive pressure alternate continuous biomass feed system as claimed in claim 1, wherein: the feeding bin (2) is a conical feeding bin.
3. The positive pressure alternate continuous biomass feed system as claimed in claim 2, wherein: the sealing inserting plate door (1) comprises a front valve body (1-1), a rear valve body (1-2), an inserting plate (1-3), an adjustable supporting wheel component (1-4), a hinge (1-5), a locking mechanism (1-6), a compressed gas purging port (1-7), a connecting rod (1-10), a cylinder (1-11) and a shell (1-13),
the front valve body (1-1) is horizontally connected with the rear valve body (1-2), the shell (1-13) is arranged on the right side of the rear valve body (1-2), the cylinder (1-11) is horizontally arranged on the right side of the shell (1-13), the connecting rod (1-10) is horizontally arranged in the shell (1-13), one end of the connecting rod (1-10) is connected with the telescopic end of the cylinder (1-11), the other end of the connecting rod (1-10) is connected with the inserting plate (1-3), the adjustable supporting wheel component (1-4) is arranged in the front valve body (1-1) and the rear valve body (1-2), the inserting plate (1-3) is driven by the connecting rod (1-10) to horizontally move on the adjustable supporting wheel component (1-4), the upper part of the inserting plate (1-3) is provided with a feeding hole (1-8), the lower part of the inserting plate (1-3) is provided with a discharge hole (1-9), the compressed gas purging port (1-7) is installed on the front valve body (1-1), the compressed gas purging port (1-7) is opposite to the inserting plate (1-3), the locking mechanism (1-6) is fixedly installed at the lower part of the front end of the inserting plate (1-3), the hinge (1-5) is installed on the inner side wall of the front valve body (1-1), and the locking mechanism (1-6) is driven by the inserting plate (1-3) to touch the hinge (1-5).
4. The system of claim 3, wherein: the front end of the inserting plate (1-3) is wedge-shaped.
5. The system of claim 4, wherein the system comprises: the activation double-helix feeding mechanism (3) comprises a first motor (3-1), a double-helix packing auger (3-2) and a plurality of material shifting plates (3-3), the double-helix packing auger (3-2) is horizontally arranged at the lower end of the feeding bin (2), the first motor (3-1) is arranged outside the feeding bin (2), an output shaft of the first motor (3-1) drives the double-helix packing auger (3-2) to horizontally rotate, and the plurality of material shifting plates (3-3) are arranged in the middle of the double-helix packing auger (3-2).
6. The system of claim 5, wherein: the tail end of the kick-out plate (3-3) is provided with sawteeth.
7. The system of claim 6, wherein: the single-spiral feeding mechanism (5) comprises a second motor (5-1), a feeding channel (5-2) and a single-spiral packing auger (5-3), the upper end of one side of the feeding channel (5-2) is connected with the connecting section (8), the other side of the feeding channel (5-2) is connected with the hearth (C), the single-spiral packing auger (5-3) is horizontally arranged in the feeding channel (5-2), one end of the single-spiral packing auger (5-3) is connected with an output shaft of the second motor (5-1) arranged outside the feeding channel (5-2), and the other end of the single-spiral packing auger (5-3) extends into the hearth (C).
8. The system of claim 7, wherein: the discharging side of the single spiral auger (5-3) extending into the hearth (C) is a variable pitch auger.
9. The system of claim 8, wherein: the pressurizing pipeline (6) is connected with an external fan or an external air pump.
10. The system of claim 3, wherein: the locking mechanism (1-6) comprises a mounting plate (1-6-1) and a bolt (1-6-2), the mounting plate (1-6-1) is mounted on the lower portion of the front end of the inserting plate (1-3), the bolt (1-6-2) is mounted on the mounting plate (1-6-1), and the mounting position of the bolt (1-6-2) corresponds to the hinge (1-5).
CN202010384744.3A 2020-05-09 2020-05-09 Biomass positive-pressure alternate continuous feeding system Pending CN111483812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010384744.3A CN111483812A (en) 2020-05-09 2020-05-09 Biomass positive-pressure alternate continuous feeding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010384744.3A CN111483812A (en) 2020-05-09 2020-05-09 Biomass positive-pressure alternate continuous feeding system

Publications (1)

Publication Number Publication Date
CN111483812A true CN111483812A (en) 2020-08-04

Family

ID=71810516

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010384744.3A Pending CN111483812A (en) 2020-05-09 2020-05-09 Biomass positive-pressure alternate continuous feeding system

Country Status (1)

Country Link
CN (1) CN111483812A (en)

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