Furnace core capable of automatically cleaning ash

Abstract

The utility model discloses an automatic ash removal furnace core in the technical field of biomass particle furnaces, which comprises a furnace core body, a base and an ash removal mechanism, and the furnace core body is fixedly mounted on the base; the ash removal mechanism comprises a grate bridge and a plurality of impellers, the grate bridge is located in the base and installed at the bottom end of the furnace core, the impellers are rotationally connected into the base, blades of the impellers penetrate through gaps of the grate bridge from bottom to top to extend to the position above the grate bridge, and the blades of the impellers rotate in the gaps of the grate bridge. A motor used for driving the multiple impellers to rotate is further installed in the base, a controller is connected to the motor through electric signals, and the controller is used for controlling the motor to be automatically started and stopped. According to the scheme, the problem that an existing biomass particle furnace needs manual ash removal is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass particle stoves, in particular to an automatic ash-cleaning stove core. Background Art

[0002] Biomass pellet stove is an efficient and environmentally friendly heating device that uses biomass energy (such as pellet fuel formed by compression of agricultural and forestry waste such as wood chips, straw, and rice husks) as a heat source. It is suitable for a variety of scenarios such as home heating, hot water supply, and commercial heating.

[0003] The fuel used in biomass pellet stoves is biomass pellet fuel. Because burning biomass fuel will produce ash and residue, if it is not cleaned in time, it may block the combustion chamber, heat exchanger or flue, affect the combustion efficiency, and even cause safety hazards. At the same time, during the combustion process of biomass pellet fuel, because biomass fuel contains high potassium, sodium, silicon and other elements, these elements make the melting point of ash relatively low. When the combustion temperature reaches 500-600℃, the ash begins to melt and stick. Above this temperature range, especially in the local high temperature area in the furnace core, the molten ash will form a eutectic, and the fuel ash will harden into a glassy hard block after cooling, which is the so-called coking or agglomeration. Therefore, during the use of the biomass pellet stove, it is necessary to clean the ash every once in a while to prevent the ash, residue and agglomerated fuel ash from clogging the combustion chamber. The current cleaning method mainly relies on manually pulling the pull rod on the base of the biomass pellet stove, which then drives the lever on the furnace bridge to shake so that the ash in the stove falls into the base through the pores of the furnace bridge to achieve the purpose of cleaning. However, manual cleaning is easy to forget the cleaning interval. Cleaning too early will cause unburned fuel to fall, resulting in fuel waste. If the cleaning time is too late, the clogging of the ash will affect the combustion effect of the fuel. Utility Model Content

[0004] The utility model aims to provide an automatic ash-cleaning furnace core to solve the problem that the existing biomass particle furnace needs manual ash cleaning.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an automatic ash-cleaning furnace core, comprising a furnace core body, a base and an ash-cleaning mechanism, wherein the furnace core body is fixedly mounted on the base;

[0006] The cleaning mechanism includes a furnace bridge and multiple impellers. The furnace bridge is located in the base and installed at the bottom end of the furnace core. The multiple impellers are rotatably connected to the base. The impeller blades extend from bottom to top through the gap of the furnace bridge to the top of the furnace bridge, and the impeller blades rotate in the gap of the furnace bridge. A motor for driving the multiple impellers to rotate is also installed in the base. The electrical signal on the motor is connected to a controller, and the controller is used to control the motor to automatically start and shut down.

[0007] The working principle of the utility model: when in use, the motor interval start time is set through the controller, and the controller starts timing according to the set interval time. After the timing ends, the controller starts the motor, and the motor drives multiple impellers to rotate synchronously when it is running. When the impeller rotates, the impeller blades rotate in the gap of the furnace bridge with the center of the impeller as the center of the circle. Since the impeller blades extend from the bottom to the top through the gap of the furnace bridge to the top of the furnace bridge, when the impeller blades rotate, the ashes on the surface of the furnace bridge can be broken, and the ashes in the furnace core body are passed through the gap of the furnace bridge and fall into the base under the push of the blades. After the motor runs for a period of time to discharge the ashes in the furnace core body, the controller controls the motor to stop running and starts a new round of timing. When the timing ends, the controller controls the motor to run again to perform a new round of automatic ash cleaning.

[0008] Beneficial effects of the utility model:

[0009] 1. This solution controls the motor to start at intervals through the controller, which in turn drives the impeller set in the gap of the furnace bridge to rotate, which can effectively break up the ashes in the furnace core and push the broken ashes through the gap of the furnace bridge to fall to the base. In this way, the controller controls the motor to start once every certain period of time, achieving the effect of automatic ash cleaning without manual operation.

[0010] 2. In this solution, the air in the base can be fanned into the furnace core during the rotation of the impeller, which can increase the amount of oxygen in the furnace core, enhance the combustion effect of the fuel in the furnace core, make the fuel burn more fully, and avoid fuel waste.

[0011] 3. During the rotation of the impeller, the clumped ash can be effectively broken up, reducing the amount of clumped ash in the furnace core and reducing the occurrence of fuel clumping in the furnace core that blocks the furnace core and affects the fuel combustion effect.

[0012] Furthermore, a transmission shaft is rotatably connected in the base, a plurality of impellers are coaxially fixed on the transmission shaft, and the output shaft of the motor is coaxially fixedly connected with the transmission shaft. When in use, the motor drives the transmission shaft to rotate through the output shaft, and when the transmission shaft rotates, the plurality of impellers can be driven to rotate synchronously.

[0013] Furthermore, a transmission shaft is rotatably connected in the base, a plurality of impellers are coaxially fixed on the transmission shaft, a transmission bevel gear is also coaxially fixed on the transmission shaft, and a driving bevel gear is fixedly connected to the output shaft of the motor, and the driving bevel gear is meshed with the transmission bevel gear. When in use, the motor drives the driving bevel gear to rotate, and when the driving bevel gear rotates, it drives the transmission bevel gear meshed with it to rotate, and when the transmission bevel gear rotates, it drives the plurality of impellers to rotate synchronously through the transmission shaft.

[0014] Furthermore, the furnace bridge is an "E"-shaped furnace bridge, which is slidably connected to the bottom end of the furnace core in a transverse direction, and is located directly below the discharge port of the furnace core body. The closed end of the furnace bridge is fixedly connected with a crossbar, and the end of the crossbar away from the bridge passes through the base and is located outside the base. The purpose is to pull the crossbar to move the furnace bridge toward the crossbar, thereby exposing the discharge port of the furnace core body, so that the large-volume clumped ash can pass through and be discharged from the furnace core into the base.

[0015] Furthermore, the impeller includes a central disk and a plurality of blades, all of which are arc-shaped, and the inner curved surfaces of the blades are all facing clockwise or counterclockwise. The purpose is that, through this arrangement, when the arc-shaped blades rotate in the direction in which their inner curved surfaces are facing, each blade is similar to a bucket, so that the impeller can be cleaned more efficiently.

[0016] Furthermore, the thickness of the impeller blades is 8 mm. The purpose is that the blades with this thickness have better tolerance, which can reduce the possibility of the blades being broken during dust cleaning, thereby achieving the effect of increasing the service life of the impeller.

[0017] Furthermore, the controller is a single chip microcomputer, because the single chip microcomputer is small in size, consumes low power, and operates stably without deviation.

[0018] Furthermore, the controller is electrically connected to a gear regulator, which is used to adjust the interval operation time of the motor. The purpose is that the user can press the gear regulator according to the time requirement of dust cleaning, and then adjust the interval time of the motor operation, so as to achieve the purpose of adjusting the automatic dust cleaning interval time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an automatic dust-cleaning furnace core of the utility model;

[0020] Figure 2 for Figure 1 Structural diagram of the middle furnace bridge;

[0021] Figure 3 It is a schematic diagram of the connection between the motor and the transmission shaft;

[0022] Figure 4 This is a schematic diagram of the connection between the motor and the transmission shaft in Example 2. DETAILED DESCRIPTION

[0023] The following is further described in detail through specific implementation methods:

[0024] The figure marks in the drawings of the specification include: furnace core body 1, base 2, cross bar 3, ash box mouth 4, furnace bridge 5, blades 6, center plate 7, limit ring 8, stabilizing shaft 9, transmission shaft 10, motor 11, transmission bevel gear 12, and drive bevel gear 13.

[0025] Embodiment 1 is basically as attached Figure 1 , Attachment Figure 2 and attached Figure 3 As shown:

[0026] A furnace core with automatic ash cleaning comprises a furnace core body 1, a base 2 and a ash cleaning mechanism, wherein the furnace core body 1 is fixedly mounted on the base 2; the furnace core body 1 may be selected from but not limited to a multifunctional furnace core with application number 202310840769.3, a smoke reduction furnace core of a return air furnace with application number 202321800751.2, or a furnace core for reducing temperature loss with application number 202321800727.9, and an ash box opening 4 is provided on the left side of the base 2.

[0027] The cleaning mechanism includes a furnace bridge 5 and two impellers. The furnace bridge 5 is an "E"-shaped furnace bridge 5. The furnace bridge 5 is slidably connected to the bottom end of the furnace core, and the furnace bridge 5 is located directly below the discharge port of the furnace core body 1. The closed end of the furnace bridge 5 is fixedly connected to a cross bar 3. The end of the cross bar 3 away from the road bridge passes through the base 2 and is located outside the base 2. The bottom end of the furnace core is fixedly connected to two limit rings 8. The end of the furnace bridge 5 away from the cross bar 3 is fixedly connected to two stabilizing shafts 9. The two stabilizing shafts 9 are respectively inserted into the two limit rings 8 and slidably connected to the limit rings 8. A transmission shaft 10 is rotatably connected in the base 2. Two impellers are coaxially fixed on the transmission shaft 10. The impeller includes a central disk 7 and a plurality of blades 6. The plurality of blades 6 are all arc-shaped and arranged on the circumference of the central disk 7. The inner curved surface of the blade 6 is facing clockwise or counterclockwise. The thickness of the blade 6 is 8mm. The blades 6 of the two impellers extend from bottom to top through the two gaps of the furnace bridge 5 to the top of the furnace bridge 5, and the blades 6 of the impellers rotate in the gap of the furnace bridge 5. A motor 11 is installed in the base 2, and the output shaft of the motor 11 is fixedly connected to the transmission shaft 10. The electrical signal of the motor 11 is connected to a controller (single-chip microcomputer), and the controller is used to control the automatic start and shut down of the motor 11. The electrical signal of the controller is connected to a gear regulator, and the gear regulator is used to adjust the interval running time of the motor 11.

[0028] The specific implementation process is as follows:

[0029] During use, the interval start time of the motor 11 is set through the gear regulator, and the controller starts timing according to the set interval time. After the timing ends, the controller starts the motor 11. The motor 11 drives multiple impellers to rotate synchronously when it is running. When the impeller rotates, the impeller blades 6 rotate in the gap of the furnace bridge 5 with the center of the impeller as the center of the circle. Since the impeller blades 6 extend from the bottom to the top through the gap of the furnace bridge 5 to the top of the furnace bridge 5, when the impeller blades 6 rotate, the ashes on the surface of the furnace bridge 5 can be broken, and under the push of the blades 6, the ashes pass through the gap of the furnace bridge 5 and fall into the base 2. After the motor 11 runs for a period of time to discharge the ashes in the furnace core body 1, the controller controls the motor 11 to stop running and start a new round of timing. When the timing ends, the controller controls the motor 11 to run again and perform a new round of automatic cleaning. At the same time, the user can press the gear regulator according to his own cleaning needs during use, and then adjust the interval time when the motor 11 is running (for example, adjust the interval time to 30 minutes, one hour, two hours, etc.), so as to achieve the purpose of adjusting the automatic cleaning interval time.

[0030] When the ash clumps in the furnace core are relatively large and fall into the base 2 through the two gaps of the furnace bridge 5, the cross bar 3 can be pulled to move the furnace bridge 5 toward the cross bar 3, thereby exposing the discharge port of the furnace core body 1, making it convenient for the large-volume ash clumps to pass through and be discharged from the furnace core into the base 2.

[0031] Example 2

[0032] The difference between Example 2 and Example 1 is shown in the attached Figure 4 As shown, a transmission bevel gear 12 is coaxially fixed on the transmission shaft 10 , and a driving bevel gear 13 is fixedly connected to the output shaft of the motor 11 , and the driving bevel gear 13 is meshed with the transmission bevel gear 12 .

[0033] When in use, the motor 11 drives the driving bevel gear 13 to rotate, and when the driving bevel gear 13 rotates, it drives the transmission bevel gear 12 meshing with it to rotate, and when the transmission bevel gear 12 rotates, it drives multiple impellers to rotate synchronously through the transmission shaft 10.

Claims

1. An automatic ash cleaning furnace core, characterized in that: It includes a furnace core body, a base and a ash cleaning mechanism, wherein the furnace core body is fixedly mounted on the base; The cleaning mechanism includes a furnace bridge and multiple impellers. The furnace bridge is located in the base and installed at the bottom end of the furnace core. The multiple impellers are rotatably connected to the base. The impeller blades extend from bottom to top through the gap of the furnace bridge to the top of the furnace bridge, and the impeller blades rotate in the gap of the furnace bridge. A motor for driving the multiple impellers to rotate is also installed in the base. The electrical signal on the motor is connected to a controller, and the controller is used to control the motor to automatically start and shut down.

2. The automatic dust-cleaning furnace core according to claim 1, characterized in that: A transmission shaft is rotatably connected inside the base, a plurality of impellers are coaxially fixed on the transmission shaft, and an output shaft of the motor is coaxially fixedly connected to the transmission shaft.

3. The automatic dust-cleaning furnace core according to claim 1, characterized in that: A transmission shaft is rotatably connected in the base, a plurality of impellers are coaxially fixed on the transmission shaft, a transmission bevel gear is also coaxially fixed on the transmission shaft, the output shaft of the motor is fixedly connected to the driving bevel gear, and the driving bevel gear is meshed with the transmission bevel gear.

4. The automatic dust-cleaning furnace core according to claim 2 or 3, characterized in that: The furnace bridge is an "E"-shaped furnace bridge, which is laterally slidably connected to the bottom end of the furnace core, and is located directly below the discharge port of the furnace core body. The closed end of the furnace bridge is fixedly connected to a cross bar, and the end of the cross bar away from the road bridge passes through the base and is located outside the base.

5. The automatic dust-cleaning furnace core according to claim 4, characterized in that: The impeller comprises a central disk and a plurality of blades, wherein the plurality of blades are all arc-shaped sheets, and the inner curved surfaces of the blades are all facing the clockwise direction or the counterclockwise direction.

6. The automatic dust-cleaning furnace core according to claim 5, characterized in that: The thickness of the impeller blades is 8 mm.

7. The automatic dust-cleaning furnace core according to claim 6, characterized in that: The controller is a single chip microcomputer.

8. The automatic dust-cleaning furnace core according to claim 7, characterized in that: The controller electrical signal is connected to a gear regulator, and the gear regulator is used to adjust the interval running time of the motor.

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