CN215591778U

CN215591778U - Stokehole feeding system

Info

Publication number: CN215591778U
Application number: CN202121437151.5U
Authority: CN
Inventors: 陈志超
Original assignee: Zhangjiagang Zhehua Science And Technology Co ltd
Current assignee: Zhangjiagang Zhehua Science And Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-01-21
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a stokehole feeding system which comprises a discharging mechanism and a crushing mechanism, wherein the discharging mechanism is arranged in a conveying pipe, a short shaft auger and a cutting edge are arranged, the material guiding effect is improved, the phenomenon of material winding is avoided, a fan blade and a filter bag net are arranged, the auxiliary effect of material guiding work is improved by utilizing air flow, an emergency valve and a fire prevention mechanism are arranged, the safety of the discharging mechanism is improved, a programmable controller is arranged, the automatic valve closing and the automation degree monitoring and controlling are improved, the transmission motor and a transmission gear set are arranged at the top of the conveying pipe by arranging the crushing mechanism, the transmission effect of the transmission motor is improved, and the first crushing roller and the second crushing roller are arranged, so that the crushing effect of materials is improved.

Description

Stokehole feeding system

Technical Field

The utility model relates to the field of material conveying equipment, in particular to a stokehole feeding system.

Background

The stokehole generally refers to mechanical equipment used for smelting in industry, and the mechanical equipment has a plurality of types, generally uses coal fire to generate heat and uses coal gas and electric power; the feeding system refers to an electric system for automatic production formed by mechanical components for feeding in industry; the feeding system has the advantages of simple structure, stable vibration, uniform feeding and good continuity.

The difficult even feed that carries on of current device when the feed to the burning that leads to the material is insufficient, produces a large amount of carbon monoxide gas, and current device lacks the air current guide part simultaneously, appears falling the cigarette phenomenon easily, thereby leads to operational environment air quality relatively poor, and the design of current device makes the material pile up in the storehouse easily simultaneously, thereby makes the result of use in feed storehouse relatively poor, increases staff's cleaning work burden.

SUMMERY OF THE UTILITY MODEL

Accordingly, to address the above-described deficiencies, the present invention provides a stokehole feed system.

The utility model is realized in such a way that a stokehole feeding system is constructed, the device comprises a feeding bin, a working groove, a conveying pipe, a blanking mechanism, a control panel, an electric wire, a stirring mechanism, a guide hopper, a motor base, a stirring motor and a coupling, the bottom of the feeding bin is in bolted connection with the top of the working groove, the right side of the bottom in the working groove is in bolted connection with the conveying pipe, the right side of the front end of the conveying pipe is in bolted connection with the control panel, the right end of the control panel is fixedly connected with the electric wire, the peripheral wall of the inner side of the working groove is in bolted connection with the guide hopper, the left side of the bottom in the working groove is in bolted connection with the motor base, the left end of the motor base is in bolted connection with the stirring motor, the movable end of the stirring motor is in coaxial rotation with the coupling, the electric wire and the stirring motor are both in electrical connection with the control panel, the blanking mechanism is arranged in the conveying pipe, the blanking mechanism comprises a short shaft, a screw auger, The fire-fighting furnace comprises a fan blade, a cutting blade, a constant pressure water layer, a filter bag net, a furnace front material pipe, an emergency valve, a control motor, a fire-proof mechanism, an expansion connecting joint and a programmable controller, wherein a short shaft auger is arranged inside the conveyor pipe, the left end of a transmission shaft of the short shaft auger is fixedly connected with a shaft coupling, the right end of the transmission shaft of the short shaft auger is rotatably connected with the inner wall of the conveyor pipe, the outer left side of the transmission shaft of the short shaft auger is connected with the center of the fan blade through a bolt, the outer side surface of the transmission shaft of the short shaft auger is connected with the cutting blade through a bolt, the inner wall of the conveyor pipe is fixedly connected with the constant pressure water layer, the inner side wall of the constant pressure water layer is slidably connected with the outer side of the short shaft auger, the right side of the inner wall of the conveyor pipe is connected with the center through hole of the filter bag net in a rotating manner, a discharge hole on the right side of the bottom of the conveyor pipe is connected with the furnace front material pipe in a pipeline, the top of the furnace front material pipe is provided with the emergency valve, the emergency valve is characterized in that the left end face of the emergency valve is connected with a control motor through a bolt, a fireproof mechanism is arranged at the bottom of the outer side of the furnace front pipe, the bottom of the furnace front pipe is connected with an expansion connecting joint through a pipeline, the left side of the top of the conveying pipe is connected with a programmable logic controller through a bolt, the control motor is connected with a programmable logic controller through an electric signal, the control motor and the programmable logic controller are electrically connected with a control panel, and the crushing mechanism is arranged on the left side of the top of the conveying pipe.

Preferably, fire prevention mechanism includes a fire prevention section of thick bamboo, gear motor, one-way pivot, PLASTIC LAMINATED and temperature sensor, stokehold material pipe outside bottom is connected with fire prevention bobbin pipe way, a fire prevention section of thick bamboo rear end face and gear motor bolted connection, gear motor shaft moves end and the coaxial rotation of one-way pivot, one-way pivot rotates with a fire prevention section of thick bamboo inner wall to be connected, one-way pivot lateral surface and PLASTIC LAMINATED bolted connection, PLASTIC LAMINATED and a fire prevention section of thick bamboo inner wall sliding connection, a fire prevention section of thick bamboo rear end face and temperature sensor bolted connection, gear motor and temperature sensor all with programmable controller signal of electricity connection, gear motor and temperature sensor all are connected with control panel electricity.

Preferably, the stirring mechanism comprises a connecting chute, a transmission motor, a transmission gear set, a first crushing roller and a second crushing roller, wherein a feed inlet on the left side of the top of the conveying pipe is connected with a connecting chute pipeline, the outer side surface of the connecting chute is connected with a guide hopper through a bolt, the right end surface of the connecting chute is connected with the transmission motor through a bolt, the outer side of a main shaft of the transmission motor is fixedly connected with a front end gear of the transmission gear set, the moving end of the transmission motor coaxially rotates with the first crushing roller, the outer side end of the first crushing roller is contacted with a crushing tooth of the second crushing roller, a transmission shaft of the second crushing roller is fixedly connected with a rear end gear of the transmission gear set, the transmission motor is electrically connected with a programmable controller, and the transmission motor is electrically connected with a control panel.

Preferably, the size of the fan blade is the same as that of the auger blade of the short shaft auger, and the pitch length of the blade of the short shaft auger is the same as that of the cutting edge.

Preferably, a graphite gasket is arranged at the joint of the circle center of the filter bag net and a transmission shaft of the short shaft auger, and the left end of the filter bag net and the discharge port of the conveying pipe are positioned on the same straight line.

Preferably, the width of the fireproof plate is the same as the radius length of the inner wall of the fireproof cylinder, and the length of the fireproof plate is the same as the diameter length of the outer side of the stokehole material pipe.

Preferably, the extension length of the joint of the material guide hopper and the top of the connecting slide pipe is 10CM, and the height difference formed between the first crushing roller and the second crushing roller which are connected with the front side and the rear side inside the slide pipe is 3 CM.

Preferably, the middle part of the connecting chute and the bottom of the inner wall are provided with lugs with inclination angles of 60 degrees, and the lugs at the middle part of the connecting chute are the same as the connecting chute blanking port in specification and size.

Preferably, the material of the filter bag net is nylon.

Preferably, the connecting chute is made of steel.

The utility model has the following advantages: the utility model provides a stokehole feeding system through improvement, compared with the same type of equipment, the improvement is as follows:

according to the stokehole feeding system, the blanking mechanism is arranged in the conveying pipe, the short shaft auger and the cutting edge are arranged, the material guiding effect is improved, the material winding phenomenon is avoided, the fan blade and the filter bag net are arranged, the auxiliary effect of material guiding work is improved by utilizing air flow, the emergency valve and the fireproof mechanism are arranged, the safety of the blanking mechanism is improved, and the programmable controller is arranged, so that the automatic valve closing and the monitoring and control automation degree are improved.

According to the stokehole feeding system, the stirring mechanism is arranged at the top of the conveying pipe, the transmission motor and the transmission gear set are arranged, so that the transmission effect of the transmission motor is favorably improved, and the first crushing roller and the second crushing roller are arranged, so that the crushing effect of materials is favorably improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the blanking mechanism and the internal structure of the working tank of the utility model;

FIG. 3 is an enlarged schematic view of the utility model at A in FIG. 2;

FIG. 4 is a schematic diagram of the right view of the fire protection mechanism of the present invention;

fig. 5 is a schematic view of the structure of the mashing mechanism of the present invention.

Wherein: a feeding bin-1, a working groove-2, a conveying pipe-3, a blanking mechanism-4, a control panel-5, an electric wire-6, a mincing mechanism-7, a material guide hopper-8, a motor base-9, a material stirring motor-10, a coupling-11, a short shaft packing auger-41, a fan blade-42, a cutting blade-43, a constant pressure water layer-44, a filter bag net-45, a furnace front material pipe-46, an emergency valve-47, a control motor-48, a fire prevention mechanism-49, an expansion connecting joint-410, a programmable controller-411, a fire prevention cylinder-491, a speed reduction motor-492, a one-way rotating shaft-493, a fire prevention plate-494, a temperature sensor-495, a connecting slide pipe-71, a transmission motor-72, a transmission gear set-73, a transmission gear set-42, a transmission gear set-6, a transmission device-46, a transmission device and a transmission device, A first crushing roller-74 and a second crushing roller-75.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.

Referring to fig. 1, the stokehole feeding system of the present invention includes a feeding bin 1, a working tank 2, a conveying pipe 3, a blanking mechanism 4, a control panel 5, an electric wire 6, a stirring mechanism 7, a material guide hopper 8, a motor base 9, a material stirring motor 10 and a coupling 11, wherein the bottom of the feeding bin 1 is bolted to the top of the working tank 2, the right side of the bottom inside the working tank 2 is bolted to the conveying pipe 3, the right side of the front end of the conveying pipe 3 is bolted to the control panel 5, the right end of the control panel 5 is fixedly connected to the electric wire 6, the peripheral wall inside the working tank 2 is bolted to the material guide hopper 8, the left side of the bottom inside the working tank 2 is bolted to the motor base 9, the left end of the motor base 9 is bolted to the material stirring motor 10, the axial end of the material stirring motor 10 is coaxially rotated to the coupling 11, and both the electric wire 6 and the material stirring motor 10 are electrically connected to the control panel 5.

Referring to fig. 2, 3 and 4, in the stokehole feeding system of the present invention, a feeding mechanism 4 is disposed inside a conveying pipe 3 to improve a material guiding effect, the feeding mechanism 4 includes a short shaft auger 41, a fan blade 42, a cutting blade 43, a constant pressure water layer 44, a filter bag net 45, a stokehole pipe 46, an emergency valve 47, a control motor 48, a fire prevention mechanism 49, an expansion connection joint 410 and a programmable controller 411, the short shaft auger 41 is disposed inside the conveying pipe 3 to improve the material guiding effect, the left end of a transmission shaft of the short shaft auger 41 is fixedly connected to a coupling 11 to improve the rotation effect of the short shaft auger 41, the right end of the transmission shaft of the short shaft auger 41 is rotatably connected to the inner wall of the conveying pipe 3 to improve the stability of the short shaft auger 41 during rotation, the outer left side of the transmission shaft of the short shaft auger 41 is bolted to the center of the fan blade 42 to improve the driving effect of the fan blade 42, the outer side surface of the transmission shaft of the short shaft auger 41 is bolted to the cutting blade 43, the fixing effect of the cutting edge 43 is improved, the inner wall of the conveying pipe 3 is fixedly connected with the constant pressure water layer 44, the fixing effect of the constant pressure water layer 44 is improved, the inner side wall of the constant pressure water layer 44 is in sliding connection with the outer side of the short shaft packing auger 41, the material guiding effect of the constant pressure water layer 44 is improved, the right side of the inner wall of the conveying pipe 3 is in bolted connection with the filter bag net 45, the fixing effect of the filter bag net 45 is improved, the transmission shaft of the short shaft packing auger 41 is in rotating connection with the central through hole of the filter bag net 45, the rotating effect of the short shaft packing auger 41 is improved, the discharge hole on the right side of the bottom of the conveying pipe 3 is in pipeline connection with the stokehole material pipe 46, the fixing effect of the stokehole material pipe 46 is improved, the emergency valve 47 is arranged on the top of the outer side of the stokehole material pipe 46, the working effects of fire prevention and the like are improved, the left end face of the emergency valve 47 is in bolted connection with the control motor 48, the fixing effect of the control motor 48 is improved, the fire prevention mechanism 49 is arranged on the bottom of the outer side of the stokehole material feeding system is improved, the bottom of the stokehole pipe 46 is connected with the expansion connecting joint 410 through a pipeline to improve the fixing effect of the expansion connecting joint 410, the left side of the top of the conveying pipe 3 is in bolted connection with the programmable controller 411 to improve the fixing effect of the programmable controller 411, the control motor 48 is in electrical signal connection with the programmable controller 411 to improve the control effect of the programmable controller 411, the control motor 48 and the programmable controller 411 are both electrically connected with the control panel 5, the crushing mechanism 7 is arranged on the left side of the top of the conveying pipe 3 to improve the crushing effect on materials, the fire prevention mechanism 49 comprises a fire prevention cylinder 491, a speed reduction motor 492, a one-way rotating shaft 493, a fire prevention plate 494 and a temperature sensor 495, the bottom of the outer side of the stokehole pipe 46 is connected with the fire prevention cylinder 491 through a pipeline to improve the fixing effect of the fire prevention cylinder 491, the rear end face of the fire prevention cylinder 491 is in bolted connection with the speed reduction motor 492 to improve the fixing effect of the speed reduction motor 492, and the shaft moving end of the speed reduction motor 492 rotates coaxially with the one-way rotating shaft 493, the driving effect of the speed reducing motor 492 is improved, the one-way rotating shaft 493 is rotatably connected with the inner wall of the fireproof cylinder 491, the stability of the one-way rotating shaft 493 during rotation is improved, the outer side surface of the one-way rotating shaft 493 is in bolted connection with the fireproof plate 494, the fixing effect of the fireproof plate 494 is improved, the fireproof plate 494 is in sliding connection with the inner wall of the fireproof cylinder 491, the stability of the fireproof plate 494 during movement is improved, the rear end surface of the fireproof cylinder 491 is in bolted connection with the temperature sensor 495, the fixing effect of the temperature sensor 495 is improved, the speed reducing motor 492 and the temperature sensor 495 are in electrical signal connection with the programmable controller 411, the speed reducing motor 492 and the temperature sensor 495 are electrically connected with the control panel 5, the fan blades 42 are the same as the screw blade of the short shaft screw auger 41, the distance length of the short shaft screw blade 41 is the same as the length of the cutting blade 43, the cutting effect of the cutting blade 43 is improved, the winding phenomenon is avoided, a graphite washer is arranged at the connection part of the circle center of the filter bag net 45 and the transmission shaft of the short shaft screw blade 41, and the left end of the filter bag net 45 and the discharge hole of the conveying pipe 3 are positioned on the same straight line, which is beneficial to improving the blocking effect of the filter bag net 45, the width of the fireproof plate 494 is the same as the radius length of the inner wall of the fireproof cylinder 491, and the length of the fireproof plate 494 is the same as the diameter length of the outer side of the stokehole material pipe 46.

Referring to fig. 5, in the stokehole feeding system of the present invention, the crushing mechanism 7 includes a connecting chute 71, a transmission motor 72, a transmission gear set 73, a first crushing roller 74 and a second crushing roller 75, a feeding port on the left side of the top of the conveying pipe 3 is connected to the connecting chute 71 through a pipeline, so as to improve the material guiding effect of the connecting chute 71, the outer side surface of the connecting chute 71 is connected to the material guiding hopper 8 through a bolt, so as to improve the fixing effect of the connecting chute 71, the right end surface of the connecting chute 71 is connected to the transmission motor 72 through a bolt, so as to improve the fixing effect of the transmission motor 72, the outer side of the main shaft of the transmission motor 72 is fixedly connected to the front end gear of the transmission gear set 73, so as to improve the driving effect of the transmission motor 72, the shaft moving end of the transmission motor 72 rotates coaxially with the first crushing roller 74, so as to improve the driving effect of the transmission motor 72, the outer side end of the first crushing roller 74 contacts with the crushing teeth of the second crushing roller 75, so as to improve the crushing effect of the first crushing roller 74 and the second crushing roller 75, the transmission shaft of second crushing roller 75 and transmission gear set 73 rear end gear fixed connection, improve the drive effect of transmission gear set 73, transmission motor 72 and programmable controller 411 electricity signal connection, transmission motor 72 is connected with control panel 5 electricity, the guide hopper 8 is 10CM with the extension length who is connected elephant trunk 71 top junction, and the difference in height that forms between the inside front and back both sides of connection elephant trunk 71 first crushing roller 74 and second crushing roller 75 is 3CM, be favorable to improving the crushing effect of first crushing roller 74 and second crushing roller 75, middle part and inner wall bottom all are equipped with the inclination and are 60 lugs in the connection elephant trunk 71, and the lug of connecting middle part in the elephant trunk 71 is the same with connection elephant trunk 71 feed opening specification size, be favorable to improving the air current that blocks the feed inlet of conveyer pipe 3 and block the effect.

The utility model provides a stokehole feeding system through improvement, and the working principle is as follows;

firstly, when the equipment is used, the equipment is placed in a working area, and then the device is connected with an external power supply, so that the power supply required by the work of the equipment can be provided;

secondly, the worker connects the device with the boiler firstly, then the worker codes the programmable controller 411 through an external computer, when feeding, the worker controls the programmable controller 411 through the control panel 5 to perform a feeding process, the material falls on the top of the material guide hopper 8 under the control of the material feeding bin 1, then the material moves into the connecting chute 71 after being guided by the material guide hopper 8, the programmable controller 411 controls the transmission motor 72 to drive the transmission gear set 73 to rotate, the transmission gear set 73 drives the first crushing roller 74 and the second crushing roller 75 to rotate oppositely when rotating, so that the material on the top of the first crushing roller 74 and the second crushing roller 75 is crushed, and the phenomenon that the material is spherical and can not be crushed is avoided by setting the height difference between the first crushing roller 74 and the second crushing roller 75, the crushing effect on the materials is improved, meanwhile, the combustion or treatment effect of the materials with smaller volume can be improved, and the phenomenon that the materials are too long and the short-shaft auger 41 is wound is avoided;

thirdly, the programmable controller 411 controls the material stirring motor 10 to drive the coupler 11 to rotate, so that the coupler 11 drives the short shaft auger 41 to rotate and guide the material, when the short shaft auger 41 rotates, the fan blade 42 is synchronously driven to rotate, the air flow generated by the fan blade 42 is blocked by the short shaft auger 41 to form a vortex-shaped air flow flowing towards the right side, at this time, the connecting chute 71 is provided with a windshield block to prevent the air flow from entering the connecting chute 71 in a messy way, the short shaft auger 41 is extruded with the inner ring wall of the constant pressure water layer 44 when rotating, so that the constant pressure water layer 44 is in a deformation state, the relative sealing effect between the short shaft auger 41 and the constant pressure water layer 44 is favorably improved, the gap between the short shaft auger 41 and the end face of the conveying pipe 3 is favorably prevented from being too large, the short shaft auger 41 is difficult to guide the material with smaller volume, and at this time, the air flow vortex formed by the fan blade 42 can assist to drive some lighter materials to move rightwards, the material moves to the left end of the filter bag net 45 and falls into the furnace forehearth 46 after being blocked;

fourthly, when the material falls on the top of the fireproof plate 494, the programmable controller 411 controls the speed reducing motor 492 and the temperature sensor 495 to work synchronously, the speed reducing motor 492 drives the one-way rotating shaft 493 and the fireproof plate 494 to rotate slowly at a uniform speed, at this time, the speed reducing motor 492 drives the fireproof plate 494 to rotate to form an upward or downward airflow, which can reduce the airflow flowing from the boiler, thereby being beneficial to avoiding the occurrence of smoke pouring phenomenon, and also avoiding the phenomena that the stokehole pipe 46 and the expansion joint 410 are damaged due to excessive influence of high temperature, and the like, meanwhile, the airflow generated by the fan blade 42 resists the upward airflow formed by the fireproof plate 494, thereby avoiding the upward airflow formed by the fireproof plate 494 from influencing the feeding work of the material, the fireproof plate 494 drives the material on the top to rotate and fall into the expansion joint 410, and finally fall into the boiler, at this time, the temperature sensor 495 senses the temperature of the airflow in the stokehole pipe 46 and the fireproof tube 491, when the temperature is too high, the temperature sensor 495 transmits an electric signal to the programmable controller 411, the programmable controller 411 controls the power of the speed reducing motor 492 to be increased, and the fireproof plate 494 of the speed reducing motor 492 rotates to form stronger air flow, so that the cooling effect is realized, the phenomena of spontaneous combustion and the like of combustible materials caused by the too high temperature are avoided, and the feeding safety is favorably improved.

The utility model provides a stokehole feeding system through improvement, which is provided with a short shaft auger 41 and a cutting edge 43 to improve the material guiding effect and avoid the material winding phenomenon, is provided with a fan blade 42 and a filter bag net 45 to improve the auxiliary effect of the material guiding work by utilizing air flow, is provided with an emergency valve 47 and a fire prevention mechanism 49 to be beneficial to improving the safety of a blanking mechanism 4, is provided with a programmable controller 411 to be beneficial to improving the automatic valve closing and monitoring and controlling automation degree, is provided with a transmission motor 72 and a transmission gear set 73 to be beneficial to improving the transmission effect of the transmission motor 72, and is provided with a first crushing roller 74 and a second crushing roller 75 to be beneficial to improving the crushing effect of the material.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The stokehole feeding system comprises a feeding bin (1) and a coupler (11), wherein the bottom of the feeding bin (1) is connected with the top of a working groove (2) through a bolt, the right side of the bottom in the working groove (2) is connected with a conveying pipe (3) through a bolt, the right side of the front end of the conveying pipe (3) is connected with a control panel (5) through a bolt, the right end of the control panel (5) is fixedly connected with an electric wire (6), the peripheral wall of the inner side of the working groove (2) is connected with a guide hopper (8) through a bolt, the left side of the bottom in the working groove (2) is connected with a motor base (9) through a bolt, the left end of the motor base (9) is connected with a stirring motor (10) through a bolt, the axial moving end of the stirring motor (10) coaxially rotates with the coupler (11), and the electric wire (6) and the stirring motor (10) are both electrically connected with the control panel (5);

the method is characterized in that: still include unloading mechanism (4) and stir garrulous mechanism (7), inside conveyer pipe (3) was located in unloading mechanism (4), unloading mechanism (4) are including minor axis auger (41), fan leaf (42), cutting edge (43), level pressure water layer (44), filter bag net (45), stove front feed pipe (46), emergency valve (47), control motor (48), fire prevention mechanism (49), expansion joint (410) and programmable controller (411), conveyer pipe (3) inside is equipped with minor axis auger (41), the transmission shaft left end and shaft coupling (11) fixed connection of minor axis auger (41), minor axis auger (41) transmission shaft right-hand member is connected with conveyer pipe (3) inner wall rotation, the outer left side and fan leaf (42) centre of a circle bolted connection of minor axis auger (41) transmission shaft, minor axis auger (41) transmission shaft lateral surface and cutting edge (43) bolted connection, the utility model discloses a fire prevention device, including conveyer pipe (3) inner wall and level pressure water layer (44) fixed connection, level pressure water layer (44) inside wall and minor axis auger (41) outside sliding connection, conveyer pipe (3) inner wall right side and filter bag net (45) bolted connection, the transmission shaft and the filter bag net (45) center through-hole of minor axis auger (41) rotate to be connected, the discharge gate and stokehold material pipe (46) pipe connection on conveyer pipe (3) bottom right side, stokehold material pipe (46) outside top is equipped with emergency valve (47), emergency valve (47) left end face and control motor (48) bolted connection, stokehold material pipe (46) outside bottom is equipped with fire prevention mechanism (49), stokehold material pipe (46) bottom and expansion joint (410) pipe connection, conveyer pipe (3) top left side and programmable controller (411) bolted connection, control motor (48) and programmable controller (411) electric signal connection, control motor (48) and programmable controller (411) all are connected with control panel (5) electricity, the left side in conveyer pipe (3) top is located in stirring mechanism (7).

2. The stokehold feed system of claim 1, wherein: the fire-proof mechanism (49) comprises a fire-proof cylinder (491), a speed reducing motor (492), a one-way rotating shaft (493), a fire-proof plate (494) and a temperature sensor (495), the bottom of the outer side of the stokehole material pipe (46) is connected with a fire-proof cylinder (491) through a pipeline, the rear end surface of the fire-proof cylinder (491) is connected with a speed reducing motor (492) through a bolt, the axial moving end of the speed reducing motor (492) rotates coaxially with the unidirectional rotating shaft (493), the unidirectional rotating shaft (493) is rotationally connected with the inner wall of the fireproof barrel (491), the outer side surface of the unidirectional rotating shaft (493) is connected with the fireproof plate (494) through bolts, the fire-proof plate (494) is connected with the inner wall of the fire-proof cylinder (491) in a sliding way, the rear end surface of the fire-proof cylinder (491) is connected with the temperature sensor (495) through bolts, the speed reducing motor (492) and the temperature sensor (495) are in electric signal connection with the programmable controller (411), the speed reducing motor (492) and the temperature sensor (495) are electrically connected with the control panel (5).

3. The stokehold feed system of claim 1, wherein: the stirring mechanism (7) comprises a connecting slide pipe (71), a transmission motor (72), a transmission gear set (73), a first crushing roller (74) and a second crushing roller (75), a feeding hole on the left side of the top of the conveying pipe (3) is connected with a pipeline of the connecting slide pipe (71), the outer side surface of the connecting slide pipe (71) is in bolt connection with the material guide hopper (8), the right end surface of the connecting slide pipe (71) is in bolt connection with the transmission motor (72), the outer side of a main shaft of the transmission motor (72) is fixedly connected with a front end gear of the transmission gear set (73), the shaft moving end of the transmission motor (72) is coaxially rotated with the first crushing roller (74), the outer side end of the first crushing roller (74) is in contact with crushing teeth of the second crushing roller (75), a transmission shaft of the second crushing roller (75) is fixedly connected with a rear end gear of the transmission gear set (73), and the transmission motor (72) is in electric signal connection with a programmable controller (411), the transmission motor (72) is electrically connected with the control panel (5).

4. The stokehold feed system of claim 1, wherein: the auger paddle size of fan leaf (42) and minor axis auger (41) is the same, and the paddle interval length of minor axis auger (41) is the same with cutting edge (43) length.

5. The stokehold feed system of claim 1, wherein: a graphite gasket is arranged at the joint of the circle center of the filter bag net (45) and a transmission shaft of the short shaft packing auger (41), and the left end of the filter bag net (45) and the discharge hole of the conveying pipe (3) are positioned on the same straight line.

6. The stokehold feed system of claim 2, wherein: the width of the fire prevention plate (494) is the same as the radius length of the inner wall of the fire prevention cylinder (491), and the length of the fire prevention plate (494) is the same as the diameter length of the outer side of the stokehole pipe (46).

7. The stokehold feed system of claim 1, wherein: the extension length of the connecting part of the material guide hopper (8) and the top of the connecting slide pipe (71) is 10CM, and the height difference formed between the first crushing roller (74) and the second crushing roller (75) which are connected with the front side and the rear side in the slide pipe (71) is 3 CM.

8. A stokehold feed system according to claim 3, characterised in that: the middle part in the connecting elephant trunk (71) and the bottom of the inner wall are provided with lugs with inclination angles of 60 degrees, and the lugs at the middle part in the connecting elephant trunk (71) are the same as the specification and the size of a feed opening of the connecting elephant trunk (71).