CN211651156U

CN211651156U - Automatic fuel feeding system of dryer

Info

Publication number: CN211651156U
Application number: CN201922306619.6U
Authority: CN
Inventors: 李明玉; 刘帅; 刘倩倩; 李德华; 徐秀芹; 单既华
Original assignee: Shandong Province Linqu County Juneng Drying Equipment Co ltd
Current assignee: Shandong Province Linqu County Juneng Drying Equipment Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-09
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses an automatic fuel feeding system of a dryer, which comprises a drying furnace and a combustion chamber, wherein the combustion chamber is connected with the drying furnace through a hot air pipeline, the top of the combustion chamber is provided with a feeding bin, the top of the feeding bin is connected with a feeding hopper, a feeding belt machine is obliquely arranged on one side of the feeding hopper, the feeding belt machine comprises a conveying belt and a driving motor for driving the conveying belt to run, and the upper end of the conveying belt extends to the upper part of the feeding hopper; an upper flap valve and a lower flap valve are arranged in the feeding bin, the upper flap valve is positioned above the lower flap valve, and a distance is reserved between the upper flap valve and the lower flap valve. The utility model discloses an automatic fuel feeding system of drying-machine can realize adding fuel to the combustion chamber automatically, saves the manual work, and air cross flow when can effectively preventing fuel from adding, and flame, heat spill over.

Description

Automatic fuel feeding system of dryer

Technical Field

The utility model relates to a drying device technical field, specifically speaking relates to an automatic fuel feeding system of drying-machine.

Background

The dryer using wood chips, coal and the like as fuel comprises a drying furnace and a combustion chamber, and during operation, the wood chips, coal and other fuels need to be continuously added into the combustion chamber. The existing dryer needs to add fuel into the combustion chamber manually, is large in manual burden and high in labor cost, and when fuel is added into the combustion chamber manually, a fuel adding port needs to be opened, so that internal air channeling is caused easily, flames and heat overflow, the flames overflow and easily ignite external fuel, and potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a dryer automatic fuel feeding system can realize adding fuel to the combustion chamber automatically, saves the manual work, and air cross flow when can effectively prevent fuel to add, and flame, heat overflow.

In order to solve the technical problem, the technical scheme of the utility model is that:

the automatic fuel feeding system of the dryer comprises a drying furnace and a combustion chamber, wherein the combustion chamber is connected with the drying furnace through a hot air pipeline, a feeding bin is arranged at the top of the combustion chamber, the top of the feeding bin is connected with a feeding hopper, a feeding belt machine is obliquely arranged on one side of the feeding hopper, the feeding belt machine comprises a conveying belt and a driving motor for driving the conveying belt to operate, and the upper end of the conveying belt extends to the upper part of the feeding hopper;

an upper flap valve and a lower flap valve are arranged in the feeding bin, the upper flap valve is positioned above the lower flap valve, and a distance is reserved between the upper flap valve and the lower flap valve.

Preferably, the drying furnace further comprises a controller, a temperature detection sensor is arranged on the drying furnace, and the temperature detection sensor, the driving motor, the upper flap valve and the lower flap valve are electrically connected with the controller.

Preferably, the upper flap valve and the lower flap valve are both pneumatic flap valves.

Preferably, the controller is a PLC, a single chip microcomputer or an industrial personal computer.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the utility model discloses an automatic fuel feeding system of drying-machine utilizes in automatic fuel of carrying of material loading belt feeder to the feeder hopper, then opens through the flap valve, get into the feeding storehouse, automatic feeding has been realized, the setting of double-deck flap valve mainly utilizes the flap valve and has the one deck flap valve to be in closing off the off-state in the middle of the switch messenger equipment of different times with lower flap valve, make the fuel inlet on feeding storehouse can guarantee combustion chamber upper portion all the time and be in the closed condition, effectively prevented the air channeling, can not ignite the saw-dust fuel on the belt feeder, cause the conflagration hidden danger, this feeding system need not manual control, can automatic fire control accuse temperature, use manpower sparingly, reduce cost.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a schematic structural view of an automatic fuel feeding system of a dryer of the present invention;

FIG. 2 is a block diagram of the control principle of the automatic fuel feeding system of the dryer of the present invention;

in the figure: 1-drying in a furnace; 2-a combustion chamber; 3-a feeding bin; 4-a feed hopper; 5-upward flap valve; 6-lower flap valve; 7-hot air pipes; 8-temperature detection sensor; 9-feeding belt conveyor; 91-a conveyor belt; 92-a drive motor; 10-a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 2 of the drawings, the automatic fuel feeding system of the dryer of the embodiment includes a drying oven 1 and a combustion chamber 2, the combustion chamber 2 is connected with the drying oven 1 through a hot air duct 7, namely, a hot air outlet of the combustion chamber 2 is connected with a hot air inlet of the drying oven 1, a feeding bin 3 is arranged at a top fuel inlet of the combustion chamber 2, the top of the feeding bin 3 is connected with a feeding hopper 4, a feeding belt machine 9 is arranged on one side of the feeding hopper 4 in an inclined manner, the feeding belt machine 9 includes a conveying belt 91 and a driving motor 92 for driving the conveying belt 91 to run, the upper end of the conveying belt 91 extends to the upper side of the feeding hopper 4, and the conveying belt 91 is arranged in an inclined manner from top to bottom gradually towards a direction.

An upper flap valve 5 and a lower flap valve 6 are arranged in the feeding bin 3, the upper flap valve 5 is positioned above the lower flap valve 6, and a distance is reserved between the upper flap valve 5 and the lower flap valve 6.

The drying furnace comprises a drying furnace body and is characterized by further comprising a controller 10, wherein a temperature detection sensor 8 is arranged on the drying furnace body 1, a detection probe of the temperature detection sensor 8 is inserted into the drying furnace body 1, and the temperature detection sensor 8, a driving motor 92, an upper flap valve 5 and a lower flap valve 6 are all electrically connected with the controller 10. The temperature detection sensor 8 may be a temperature detection sensor of manufacturers such as Tianjin middle-ring temperature instrument Limited.

In this embodiment, the upper flap valve 5 and the lower flap valve 6 are both pneumatic flap valves.

The controller 10 is a PLC, a single chip microcomputer, or an industrial personal computer.

The utility model discloses a two tunnel drying system's theory of operation as follows:

the drying furnace 1 uses sawdust, coal and the like as fuels, when materials needing drying are arranged in the drying furnace 1, the temperature for drying inside the drying furnace 1 is set according to the materials, the temperature detection sensor 8 detects the actual temperature in the drying furnace 1 and transmits the actual temperature to the controller 10, the actual temperature in the drying furnace 1 is judged to be not at the set temperature by control, the driving motor 92 is controlled to operate to drive the feeding belt machine 9, the fuels such as sawdust and the like on the feeding belt machine 9 are transmitted into the feeding hopper 4 through the transmission belt 91, and the upper flap valve 5 and the lower flap valve 6 are both in a closed state at the moment. The feeding time of the feeding belt conveyor can be controlled according to practical experience or a mode of arranging a detection switch in the feeding hopper 4. After the feeding of the feeding belt conveyor 9 is completed, the controller 10 controls the feeding belt conveyor 9 to stop working, the controller 10 controls the upper flap valve 5 to be opened, the fuel drops into the feeding bin 3 from the feeding hopper 4 at the moment, then the controller 10 controls the upper flap valve 5 to be closed, then the lower flap valve 6 is controlled to be opened, the fuel drops into the combustion chamber 2 from the feeding bin 3 at the moment to start combustion, and then the controller 10 controls the lower flap valve 6 to be closed. The materials are combusted in the combustion chamber 2, the temperature of hot air is raised, and hot air starts to enter the drying furnace 1 through the hot air pipeline 7. At this time, the controller 10 reads the value of the temperature detection sensor 8, and repeats the above operation until the actual temperature reaches the set temperature if the actual temperature in the drying oven 1 does not reach the set temperature. This feeding system has realized fuel automatic feeding, and during operation, goes up flap valve 5 and lower flap valve 6 and keeps the normally closed state, and in time the material loading in-process, upward flap valve 5 and lower flap valve 6 also can not be in the open mode simultaneously, have consequently guaranteed that 2 upper portion fuel inlets of combustion chamber are in the encapsulated situation, have effectively avoided the steam crossflow, the problem that the heat scatters and disappears, and avoid the flame to spill over and ignite outside fuel. In order to realize more accurate control, the temperature for drying inside the drying oven 1 can be set according to the type and the amount of materials, the temperature for drying inside the drying oven 1 is set according to the materials, the temperature detection sensor 8 detects the actual temperature inside the drying oven and transmits the actual temperature to the controller 10, the controller 10 determines the starting time of the feeding belt conveyor 9 according to the difference between the set temperature and the actual temperature, and the feeding amount is controlled according to the feeding time of the feeding belt conveyor 9.

To sum up, the feeding system of this embodiment can be according to the temperature automatic feeding who sets for, controls the degree of temperature rise through the length of control material loading belt feeder material loading time, and double-deck flap valve set up mainly utilizes upper flap valve and lower flap valve to have the one deck flap valve to be in and close off the state in the middle of the switch messenger equipment of different times, makes the feed bin can guarantee that combustion chamber upper portion all is in the closure state at any time, has effectively prevented the air cross flow, can not ignite the saw-dust fuel on the belt feeder, causes the conflagration hidden danger, and this feeding system need not manual control, can automatic fire control accuse temperature, uses manpower sparingly, reduce cost.

The control can be realized by the traditional relay control, and can also be realized by the programmable logic controllers such as a PLC, a singlechip and the like, the control of the electric appliances and the electric connection thereof are the prior art, and the detailed description is not needed, and the industrial controllers such as the PLC, the singlechip and the like are used for realizing some logical control to enable the functions attached to the industrial controllers, and the method does not belong to the improvement on the method.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. Automatic fuel feeding system of dryer, including drying oven and combustion chamber, the combustion chamber with the drying oven passes through hot-blast main and connects its characterized in that: the top of the combustion chamber is provided with a feeding bin, the top of the feeding bin is connected with a feeding hopper, one side of the feeding hopper is obliquely provided with a feeding belt machine, the feeding belt machine comprises a conveying belt and a driving motor for driving the conveying belt to operate, and the upper end of the conveying belt extends to the upper part of the feeding hopper;

2. The automatic fuel feeding system of dryer according to claim 1, wherein: the drying furnace is characterized by further comprising a controller, wherein a temperature detection sensor is arranged on the drying furnace, and the temperature detection sensor, the driving motor, the upper flap valve and the lower flap valve are electrically connected with the controller.

3. The automatic fuel feeding system of dryer according to claim 2, wherein: the upper flap valve and the lower flap valve are both pneumatic flap valves.

4. The automatic fuel feeding system of dryer according to claim 2 or 3, wherein: the controller is a PLC, a single chip microcomputer or an industrial personal computer.