CN217356944U

CN217356944U - Feeding device and combustion system

Info

Publication number: CN217356944U
Application number: CN202221186534.4U
Authority: CN
Inventors: 王光来
Original assignee: Xiamen Lvyuan Energy Saving Equipment Co ltd
Current assignee: Xiamen Lvyuan Energy Saving Equipment Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-02
Anticipated expiration: 2032-05-17

Abstract

The application discloses feedway and combustion system relates to energy equipment technical field, and it includes frame, feeder hopper, spiral feeding mechanism and wind send the mechanism, the feeder hopper sets up in the frame, the discharge gate and the feed inlet of spiral feeding mechanism of feeder hopper are connected, spiral feeding mechanism's discharge gate and wind send the feed inlet of mechanism to be connected, wind send the discharge gate of mechanism and to fire burning furnace and be connected, adopt the spiral pay-off to add the mode that wind sent to carry out the material loading of living beings granule material. This application has the effect that reduces flame recharging feedway in the burning furnace.

Description

Feeding device and combustion system

Technical Field

The application relates to the technical field of energy equipment, in particular to a feeding device and a combustion system.

Background

At present, in wood processing, metal product processing and leather product processing, a very important process is carried out during drying, and hot air is often adopted for drying treatment in the drying process at present. The source of hot air often needs to depend on a set of combustion system for heat supply, and the heat energy generated by combustion of the combustion system is transferred to the drying airflow in a heat exchange mode.

In the combustion system, a feeding device is needed to convey materials to a combustion furnace of a combustion chamber, the feeding device is further arranged outside the combustion chamber, the discharge end of the feeding device is communicated with the feed inlet of the combustion furnace, and the feeding device conveys the materials to the combustion furnace in a spiral feeding mode.

However, in the manner of spiral feeding, after the feeding is stopped, materials still remain in the feeding device and the pipeline communicated with the combustion furnace, and flame in the combustion furnace can flow back to the feeding device, so that potential safety hazards exist, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the interior flame of burner and recharge feedway, this application provides a feedway and combustion system.

On the one hand, the feeding device provided by the application adopts the following technical scheme:

the feeding device comprises a rack, a feeding hopper, a spiral feeding mechanism and an air conveying mechanism, wherein the feeding hopper is arranged on the rack, a discharge hole of the feeding hopper is connected with a feed inlet of the spiral feeding mechanism, a discharge hole of the spiral feeding mechanism is connected with a feed inlet of the air conveying mechanism, and a discharge hole of the air conveying mechanism is connected with a combustion furnace.

Through adopting above-mentioned technical scheme, the material is used to cross the feeder hopper and is put into spiral feeding mechanism, utilize spiral feeding mechanism's transport effect to carry to the pneumatic conveying mechanism in, utilize the air current drive effect of pneumatic conveying mechanism to carry the material to the combustion furnace in, at the in-process of carrying the material, constantly blast air in to the combustion furnace, the condition that can reduce the combustion furnace tempering, when stopping material transport, pneumatic conveying mechanism still can continuously carry the air current to the combustion furnace in, flame extinguishes in the combustion furnace, be applicable to the less material transport of particle size such as living beings pellet fuel, continuous pneumatic conveying will continuously carry oxygen to in the combustion chamber, also have fire-retardant effect, realize reducing the phenomenon that the interior flame of combustion furnace recharges feedway simultaneously.

Preferably, the spiral feeding mechanism comprises a feeding pipe, a screw, a blanking pipe and a driving device, the feeding pipe is connected with a discharge port of the feeding hopper, the screw is coaxially and rotatably arranged in the feeding pipe, an output end of the driving device is fixedly connected with the screw, and the upper end of the blanking pipe is connected with a discharge port of the feeding pipe; the air supply mechanism comprises an air supply device and a material guide pipe, the lower end of the blanking pipe is connected with the material guide pipe, one end of the material guide pipe is connected with an air outlet of the air supply device, and a connecting pipe is arranged between the other end of the material guide pipe and the combustion furnace.

Through adopting above-mentioned technical scheme, the material drops to in the feeder hopper through the feeder hopper, drive arrangement drive screw is rotatory, carry the material to the discharge gate position of conveying pipe through the screw rod, then the material drops to in the blanking pipe through the feeding pipe, the material migrates to the passage via the blanking pipe, air supply arrangement provides the air current and blows the material in the passage to the combustion furnace via the connecting pipe, and then realize the orderly transport operation of material, utilize being connected between spiral feeding mechanism and the wind send mechanism, the stability of material is realized to the position relation, the quantification is carried.

Preferably, the connecting pipe comprises a guide pipe and a flexible pipe, one end of the guide pipe is connected with the combustion furnace, the other end of the guide pipe extends out of the combustion chamber and is connected with the flexible pipe, and the other end of the flexible pipe is connected with the material guide pipe.

Through adopting above-mentioned technical scheme, the connecting pipe adopts the flexible tube to connect, utilize the flexibility characteristic of flexible tube, be convenient for remove feedway's mounted position, compare traditional fixed connection and say, its flexibility is higher, also utilize the advantage of wind-blowing simultaneously, can adopt the flexible tube as the connecting tube, the setting that connects the lead pipe plays the transition of being connected between flexible tube and the burning furnace and uses, will burn the burning furnace and connect to the outside of burning room, will reduce and arrange the flexible tube in the condition under the high temperature environment.

Preferably, an included angle between the blanking direction of the blanking pipe and the air flow direction of the material guide pipe is less than or equal to 90 degrees.

Through adopting above-mentioned technical scheme, through setting up the hookup location relation of blanking pipe and passage, restrict the contained angle at less than or equal to ninety degrees, reduce the interior air current of passage and recharge to in the blanking pipe and influence the smooth blanking operation of material.

On the other hand, the application provides a combustion system adopts following technical scheme:

a combustion system adopts the feeding device and further comprises a combustion furnace, and the connecting pipe is connected with a feeding hole of the combustion furnace.

Through adopting above-mentioned technical scheme, through adopting foretell feedway, utilize the advantage of its air-assisted feed material, can become split type setting with feedway and burning furnace, compare traditional fixed installation mounting means, have higher flexibility, the combustion system's of also being convenient for simultaneously equipment and transportation.

Preferably, a feeding pipe is further communicated with one side of the combustion furnace.

Through adopting above-mentioned technical scheme, still be connected with the input pipe through the one side at burning furnace, can be through input pipe to the input wood waste, the timber chips in the burning furnace, because the wood processing factory produces wood waste or timber chips in the production process, the resource of this part will be taken and come and use as combustion medium, can save the cost again when the environmental protection.

Preferably, one end of the feeding pipe, which is far away from the combustion furnace, is movably connected with an end cover.

By adopting the technical scheme, the arrangement of the end cover can reduce the escape of heat energy in the combustion furnace.

Preferably, a supporting assembly used for installing the feeding pipe is arranged on one side of the combustion furnace and comprises an installation frame, clamping plates and a heat insulation layer, the clamping plates are clamped on two sides of the installation frame, openings for the feeding pipe to pass through are formed in the two clamping plates, the heat insulation layer is filled in a cavity between the two clamping plates and the installation frame, and one of the clamping plates is close to the connection position of the combustion furnace and the feeding pipe and is in sealing connection.

Through adopting above-mentioned technical scheme, the installation of being convenient for throw the pipe through setting up supporting component is fixed, simultaneously, because throw the gap between pipe and the splint, when combustion system operation and shut down the cooling, there is the condition of expend with heat and contract with cold, there is the gap easily between throwing in pipe and splint, and hot-gas escapes when leading to reproducing to and throw in the pipe and support the unstable condition.

Preferably, the lower end of the combustion furnace is connected with a combustion channel for flowing of fluid combustion media, and the other end of the combustion channel is connected with a burner.

Through adopting above-mentioned technical scheme, set up combustion channel at the combustion furnace lower extreme, carry fluidlike combustion medium to the combustion furnace in through combustion channel, fluidlike combustion medium can be liquefied gas, natural gas etc. and the burning is lighted in the combustion chamber to fluidlike combustion medium, realizes multi-functional burning energy supply.

Preferably, the combustion furnace is provided with a discharger at the upper end, the discharge end of the discharger is communicated with the combustion chamber, the upper side of the discharger is further provided with a belt conveyor, and the discharge end of the belt conveyor is located on the upper side of the discharger and is communicated with a feed inlet of the discharger.

By adopting the technical scheme, the wood chips can be automatically conveyed to the discharger and conveyed to the combustion furnace by the belt conveyor, and another way for automatic feeding is provided.

In summary, the present application includes at least one of the following beneficial technical effects:

the spiral feeding mechanism and the air feeding mechanism are combined to convey materials, so that the phenomenon of flame recharging and feeding devices in the combustion furnace is reduced;

the feeding and burning of waste wood and chips are facilitated by the arrangement of the feeding pipe, the feeding device is arranged to realize the feeding and burning of biomass granular fuel, the burning channel is arranged to convey and burn the fluid burning medium, the feeding of the feeding pipe and the feeding device can be carried out independently or synchronously, and the burning channel can be used for independent burning and heat supply to realize multifunctional feeding and burning, so that the applicability is higher;

drawings

Fig. 1 is a schematic structural diagram of a feeding device according to an embodiment of the present application.

Fig. 2 is a schematic top view of a combustion system according to embodiment 1 of the present application.

Fig. 3 is a schematic structural view of a combustion furnace according to embodiment 1 of the present application.

Fig. 4 is a schematic structural diagram of embodiment 2 of the present application.

Description of the reference numerals:

1. a frame; 2. a feed hopper; 3. a spiral feeding mechanism; 31. a feed pipe; 32. a screw; 33. a blanking pipe; 34. a drive device; 4. an air conveying mechanism; 41. an air supply device; 42. a material guide pipe; 5. a control cabinet; 6. a connecting pipe; 61. connecting a guide pipe; 62. a flexible tube; 7. a combustion furnace; 8. a casting pipe; 9. an end cap; 10. a support assembly; 101. installing a frame; 102. a splint; 103. a thermal insulation layer; 11. a combustion channel; 12. a discharger; 13. a belt conveyor; 14. a base.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses feedway. Referring to fig. 1 and 2, the feeding device comprises a frame 1, a feeding hopper 2, a spiral feeding mechanism 3 and an air conveying mechanism 4, the frame 1 is arranged in a box shape, the feeding hopper 2 is arranged on the frame 1, one side of the frame 1 is provided with a control cabinet 5, and a PLC control system is arranged in the control cabinet 5. The spiral feeding mechanism 3 and the air conveying mechanism 4 are both in control connection with a PLC control system, a discharge port at the lower end of the feed hopper 2 is connected with a feed port of the spiral feeding mechanism 3, a discharge port of the spiral feeding mechanism 3 is connected with a feed port of the air conveying mechanism 4, a discharge port of the air conveying mechanism 4 is connected with the combustion furnace 7, the control system controls the spiral feeding mechanism 3 to convey materials to the air conveying mechanism 4, the air conveying mechanism 4 conveys the materials to the combustion furnace 7 through air, and then the phenomenon that flame recharging feeding devices in the combustion furnace 7 are reduced is achieved.

Spiral feeding mechanism 3 includes conveying pipe 31, screw rod 32, blanking pipe 33 and drive arrangement 34, conveying pipe 31 horizontal installation to the 2 downside of feeder hopper, and wherein one end lateral wall and 2 lower extreme intercommunication settings of feeder hopper, screw rod 32 coaxial rotation installs to conveying pipe 31 in, drive arrangement 34 installs to conveying pipe 31 wherein one end, drive arrangement 34 sets up to the motor, the motor shaft and the screw rod 32 coaxial fixation of motor, blanking pipe 33 installs to conveying pipe 31 downside, and is connected with the discharge gate of the one end that conveying pipe 31 kept away from drive arrangement 34.

The air supply mechanism 4 includes an air supply device 41 and a material guide tube 42, the air supply device 41 is configured as an air blower, an included angle between a blanking direction of the blanking tube 33 and an air flow direction of the material guide tube 42 is less than or equal to 90 °, in this embodiment, the blanking tube 33 is perpendicular to the material guide tube 42, a lower end of the blanking tube 33 is perpendicular to the material guide tube 42, an upper end of the blanking tube 33 is perpendicular to the material feeding tube 31, the blanking tube 33 and the material guide tube 42 are perpendicular to each other, one end of the material guide tube 42 is connected to an air outlet of the air supply device 41, and a connecting tube 6 is disposed between the other end of the material guide tube 42 and the combustion furnace 7. Specifically, the air blowing device 41 and the driving device 34 are connected to the PLC control system.

The connecting pipe 6 comprises a guide pipe 61 and a flexible pipe 62, the guide pipe 61 is a metal pipe, one end of the guide pipe 61 is connected with the combustion furnace 7, the other end of the guide pipe 61 extends out of the combustion chamber and is connected with the flexible pipe 62, the other end of the flexible pipe 62 is connected with the material guiding pipe 42, and the flexible pipe 62 can be a PVC hose, a PE hose, or the like. In another embodiment, the connecting pipe 6 may also be formed by partially splicing multiple sections of metal pipes according to actual space.

The implementation principle of a feeding device in the embodiment of the application is as follows: the material is put into the feed hopper 2, the control system controls the driving device 34 to rotate and starts the air supply device 41, the material falls into the feeding pipe 31 and is conveyed to the blanking pipe 33, the material falls from the blanking pipe 33 to the material guide pipe 42, and the material is conveyed to the combustion furnace 7 under the drive of the air flow in the material guide pipe 42, so that the delivery of the biomass granular fuel is realized.

The embodiment of the application also discloses a combustion system.

Example 1:

referring to fig. 2 and 3, the combustion system includes the above-mentioned feeding device and the combustion furnace 7, and the feed inlet of the combustion furnace 7 is connected to the lead pipe 61.

Furthermore, a rectangular frame-shaped throwing pipe 8 is connected to one side of the combustion furnace 7, an end cover 9 is hinged to one end, away from the combustion furnace 7, of the throwing pipe 8, and combustion media such as wood and chips can be thrown into the combustion furnace 7 through the throwing pipe 8.

Further, it is provided with the supporting component 10 that is used for the installation to throw in tub 8 to fire burning furnace 7 one side, supporting component 10 includes installing frame 101, splint 102, insulating layer 103, installing frame 101 is the setting of rectangle frame form, installing frame 101 and fire burning furnace 7 lower extreme fixed mounting have a base 14, splint 102 press from both sides and establish to installing frame 101 both sides, the opening that supplies to throw in tub 8 and pass through is all seted up on two splint 102, insulating layer 103 fills to the cavity between two splint 102 and the installing frame 101 in, insulating layer 103 adopts thermal-insulated bubble cotton, one of them is close to splint 102 that fire burning furnace 7 and the junction of throwing in tub 8 and adopts the full weld to be connected. Specifically, one end of the guide tube 61 away from the combustion chamber extends to one side of the clamping plate 102 away from the combustion chamber. The support plate of the support assembly 10 is formed to be vertically parallel to and sealingly connected to the wall of the combustion chamber.

Further, referring to fig. 3, a combustion duct 11 through which a fluid combustion medium flows is connected to a lower end of the combustion furnace 7, and the other end of the combustion duct 11 is connected to a burner. The lower end of the combustion furnace 7 is provided with a combustion channel 11, fluid combustion media are conveyed into the combustion furnace 7 through the combustion channel 11, the fluid combustion media can be liquefied gas, natural gas and the like, and the fluid combustion media are ignited and combusted in the combustion chamber, so that multifunctional combustion energy supply is realized.

The implementation principle of the embodiment 1 is as follows: when the feeding is combusted, the feeding can be selectively carried out, and combustion energy supply can be carried out in any one mode of the feeding opening, the feeding device and the combustion channel 11, and the feeding of the wood of the feeding opening can also be carried out while the feeding device supplies the biomass particle fuel.

Example 2:

the difference between this embodiment and embodiment 1 is that, referring to fig. 4, a discharger 12 is further installed at the upper end of the combustion furnace 7, a discharge end of the discharger 12 is communicated with the combustion chamber, a belt conveyor 13 is further installed on the upper side of the discharger 12, the discharge end of the belt conveyor 13 is located on the upper side of the discharger 12 and is communicated with a feed inlet of the discharger 12, and the wood chip fragments can be conveyed to the discharger 12 through a conveyor belt and then put into the combustion furnace 7.

The implementation principle of the embodiment 2 is as follows: the difference from example 1 is that the conveyor can be selected to cooperate with the discharger 12 to discharge material into the furnace 7.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The feeding device is characterized by comprising a rack (1), a feeding hopper (2), a spiral feeding mechanism (3) and an air conveying mechanism (4), wherein the feeding hopper (2) is arranged on the rack (1), a discharging port of the feeding hopper (2) is connected with a feeding port of the spiral feeding mechanism (3), a discharging port of the spiral feeding mechanism (3) is connected with a feeding port of the air conveying mechanism (4), and a discharging port of the air conveying mechanism (4) is connected with a combustion furnace (7).

2. The feeding device as claimed in claim 1, wherein the spiral feeding mechanism (3) comprises a feeding pipe (31), a screw (32), a blanking pipe (33) and a driving device (34), the feeding pipe (31) is connected with a discharge port of the feeding hopper (2), the screw (32) is coaxially and rotatably arranged in the feeding pipe (31), an output end of the driving device (34) is fixedly connected with the screw (32), and an upper end of the blanking pipe (33) is connected with a discharge port of the feeding pipe (31); the air supply mechanism (4) comprises an air supply device (41) and a material guide pipe (42), the lower end of the blanking pipe (33) is connected with the material guide pipe (42), one end of the material guide pipe (42) is connected with an air outlet of the air supply device (41), and a connecting pipe (6) is arranged between the other end of the material guide pipe and the combustion furnace (7).

3. The feeder apparatus as claimed in claim 2, wherein said connecting pipe (6) comprises a pilot pipe (61) and a flexible pipe (62), one end of said pilot pipe (61) is connected to said burner (7), the other end of said pilot pipe (61) is extended out of said burner and connected to said flexible pipe (62), and the other end of said flexible pipe (62) is connected to said guide pipe (42).

4. The feeding device as claimed in claim 2, characterized in that the blanking direction of the blanking pipe (33) is at an angle of 90 ° or less to the direction of the air flow of the guide pipe (42).

5. A combustion system, comprising a feeding device according to any of claims 1-4, and further comprising a burner (7), wherein the connecting pipe (6) is connected to the inlet of the burner (7).

6. A combustion system according to claim 5, characterized in that a feeding pipe (8) is arranged in communication with one side of the combustion furnace (7).

7. A combustion system according to claim 6, characterized in that the end of the feed pipe (8) remote from the furnace (7) is movably connected to an end cap (9).

8. The combustion system as claimed in claim 6, wherein a support assembly (10) for mounting the feeding pipe (8) is arranged on one side of the combustion furnace (7), the support assembly (10) comprises a mounting frame (101), clamping plates (102) and a heat insulation layer (103), the clamping plates (102) are clamped on two sides of the mounting frame (101), both the clamping plates (102) are provided with through holes for the feeding pipe (8) to pass through, the heat insulation layer (103) is filled in a cavity between the two clamping plates (102) and the mounting frame (101), and one of the clamping plates (102) close to the combustion furnace (7) is hermetically connected with the connection part of the feeding pipe (8).

9. A combustion system according to claim 5, characterized in that the lower end of the combustion furnace (7) is connected with a combustion channel (11) for the circulation of a fluid combustion medium, and the other end of the combustion channel (11) is connected with a burner.

10. A combustion system according to claim 5, characterized in that the upper end of the combustion furnace (7) is provided with a discharger (12), the discharge end of the discharger (12) is communicated with the combustion chamber, the upper side of the discharger (12) is further provided with a belt conveyor (13), and the discharge end of the belt conveyor (13) is positioned on the upper side of the discharger (12) and is communicated with the feed inlet of the discharger (12).