CN210532353U

CN210532353U - Metering material-saving combustion device without coal gate

Info

Publication number: CN210532353U
Application number: CN201921066285.3U
Authority: CN
Inventors: 黄河; 黄杰; 吴月玲
Original assignee: HUBEI WANERSI ENVIRONMENTAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: HUBEI WANERSI ENVIRONMENTAL SCIENCE AND TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-15
Anticipated expiration: 2029-07-09

Abstract

The utility model provides a measurement economize material burner of no coal flashboard, including the traveling grate stoker, top one side that is close to the traveling grate stoker sets up the feeder hopper, be provided with biomass fuel whereabouts export on the feeder hopper and with the bottom skew wall of biomass fuel whereabouts export of biomass fuel direction, biomass fuel whereabouts export below is provided with feeder, feeder includes a plurality of blades of circumference equipartition in the pivot, two adjacent blades and pivot form the rotatory locking material chamber that can plug up biomass fuel whereabouts export together, its characterized in that: the rotatory lock material chamber has at the bottom of the arc chamber, and the cross section of rotatory lock material intracavity surface is smooth arc, and the skew wall outside in bottom is fixed with vibrating device, and the blade root is even as an organic whole with the pivot, and rotatory lock material chamber has four, and this device can keep ejection of compact speed even, prevents to be detained at blade root and bottom skew wall inboard.

Description

Metering material-saving combustion device without coal gate

Technical Field

The utility model belongs to the field of boiler and kiln corollary equipment, the concrete measurement economize material burner who indicates a no coal flashboard.

Background

At present, the thickness of a biomass fuel layer on a grate of a chain furnace and a reciprocating furnace for a boiler and a furnace kiln is regulated through a manual coal gate plate, so that the quantity of the biomass fuel is controlled to reach the fire size in the furnace, but the manual coal gate plate has many defects, 1, and the moving is laborious. 2. The biomass fuel is very permanently clamped on the flashboard, 3, the coal hopper and the flashboard are overheated to deform to clamp the flashboard, and 4, no biomass fuel consumption is displayed. Therefore, the coal gate plate cannot adjust the thickness of the biomass fuel on the equipment at all, and the biomass fuel is wasted greatly.

The patent of the publication number CN208566670U discloses an intelligent biomass feeding and burning device for a boiler and a kiln, which comprises a chain grate, a feed hopper, a feeding device and a control device, wherein the feeding device comprises a plurality of blades which are uniformly distributed on a rotating shaft in the circumference, and two adjacent blades and the rotating shaft form a rotary material locking cavity which can block a falling outlet of biomass fuel; the control device comprises a driving device for driving the rotating shaft to rotate and a positioning device for positioning the rotary material locking cavity to rotationally lock the material; the positioning device comprises a positioning sensing point and a positioning sensing sensor used for sensing the positioning sensing point, the positioning sensing point and the rotating shaft are synchronously rotated and arranged, the positioning sensing sensor is fixedly arranged on one side of a rotating track of the positioning sensing point, and the biomass intelligent feeding and burning device for the boiler and the kiln is provided.

This technique replaces the coal flashboard through the electric control biomass fuel unloading volume and solves above problem, reaches the biomass fuel thickness purpose on the control grate through electric control unloading rotational speed and unloading dwell time, though the accuracy is high to can digital control, can realize energy-conservation and convenient operation and show the purpose of biomass fuel consumption, nevertheless have following not enoughly:

1. the blade sets up with the contained angle between the pivot, and biomass fuel easily is detained at the blade root after long-term the use, influences ejection of compact precision, is difficult to the clearance.

2. Biomass fuel only depends on gravity to fall from the feeder hopper to the biomass fuel and export and move, and because of the reason of frictional force, the biomass fuel that is easy to be detained partially influences the follow-up ejection of compact at the bottom skew wall inboard of feeder hopper.

3. When the feeding is required to be increased, the conveying amount is increased by generally increasing the rotating speed of the rotating shaft and reducing the blanking pause time, so that the thickness of the biomass fuel is increased, and the biomass fuel is not beneficial to full combustion.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to prior art, provide a simple structure, convenient to use's measurement economize material burner of no coal flashboard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a measurement economize material burner of no coal flashboard, includes the traveling grate stoker, and top one side that is close to the traveling grate stoker sets up the feeder hopper, is provided with biomass fuel whereabouts export on the feeder hopper and with the bottom skew wall of biomass fuel whereabouts export of biomass fuel whereabouts, biomass fuel whereabouts export below is provided with feeder, feeder includes a plurality of blades of circumference equipartition in the pivot, and two adjacent blades and pivot form together and to plug up the rotatory locking material chamber of biomass fuel whereabouts export, its characterized in that: the two sides of the root of the blade and the rotating shaft are both smooth fillets, and the rotary material locking cavity is a cavity with a large opening at the upper end and a smooth inner cavity.

The metering material-saving combustion device without the coal gate plate is characterized in that: the cross section of the inner surface of the rotary material locking cavity is in a smooth arc shape.

The metering material-saving combustion device without the coal gate plate is characterized in that: and a vibration device is fixed on the outer side of the bottom inclined wall.

The metering material-saving combustion device without the coal gate plate is characterized in that: the blade root and the rotating shaft are connected into a whole.

The metering material-saving combustion device without the coal gate plate is characterized in that: the number of the rotary material locking cavities is four.

The metering material-saving combustion device without the coal gate plate is characterized in that: the biomass fuel feeding device is characterized in that the number of the chain grates is two, the two chain grates are arranged side by side, one feeding hopper is respectively arranged above the two chain grates in a one-to-one correspondence mode, the biomass fuel falling outlets on the feeding hoppers are arranged along the axial direction of the rotating shaft in a linear mode, and the two feeding hoppers are matched with the same blade on the rotating shaft to form a rotating locking cavity capable of blocking the two biomass fuel falling outlets.

The utility model has the advantages that:

1. through set up vibrating device in the bottom skew wall outside, make the biomass fuel in bottom skew wall inboard continuously evenly slide to biomass fuel whereabouts export, keep ejection of compact speed even, prevent to be detained.

2. Through set up the big and smooth cavity of inner chamber of upper end opening between adjacent blade, the cross section of rotatory locking material intracavity surface is smooth arc, the smooth cavity of rotatory centrifugal force cooperation inner chamber of pivot, can prevent effectively that biomass fuel from being detained at the blade root, be favorable to improving ejection of compact precision, overcome and lead to the fact the measurement inaccurate because of rotatory locking material chamber presss from both sides the material, the clearance and the maintenance of pivot and blade also are convenient for to this structure, avoid biomass fuel to adhere to corrosion equipment on pivot and blade, be favorable to extending the life of equipment.

3. The method for controlling the biomass fuel blanking amount and thickness by controlling the starting time, the stopping time and the speed of the rotation of the feeding device changes the prior method for controlling the biomass fuel thickness by using a manual coal gate plate.

4. The traveling grate has two, and two feeder hoppers all form with same epaxial blade cooperation and can block up two biomass fuel whereabouts export rotatory lock material chamber, and this structural design can realize that a traveling grate carries alone and two traveling grates are carried simultaneously, has realized increaseing the purpose of biomass fuel delivery under the biomass fuel thickness condition not increasing, simple structure, convenient to use.

Drawings

FIG. 1 is a schematic view of the material locking structure of the rotary material locking cavity of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure: 1. a traveling grate; 2. a feed hopper; 21. a biomass fuel drop outlet; 3. a feeding device; 31. a rotating shaft; 32. a blade; 4. a drive device; 41. a motor; 42. a time relay; 5. a positioning device; 51. positioning an induction point; 52. a proximity switch; 6. a main air duct; 61. a secondary air inlet pipe; 7. a speed reducer; 8. a biomass fuel; 9. a vibrating device.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in figures 1 and 2, the coal-gate-free metering and material-saving combustion device comprises an endless grate 1, a feed hopper 2 is arranged on one side close to the upper part of the endless grate 1, a biomass fuel falling outlet 21 and a bottom inclined wall guiding the biomass fuel to the biomass fuel falling outlet 21 are arranged on the feed hopper 2, and a vibrating device 9 is fixed on the outer side of the bottom inclined wall. Biomass fuel whereabouts export 21 is the infundibulate structure, and biomass fuel whereabouts export 21 below is provided with feeder 3, feeder 3 includes a plurality of blades 32 of circumference equipartition in pivot 31, and two adjacent blades 32 and pivot 31 form together and to plug up biomass fuel whereabouts export 21's rotatory locking material chamber is smooth fillet between blade 32 root both sides and the pivot 31, and rotatory locking material chamber is the big and smooth cavity of inner chamber of upper end opening. The cross section of the inner surface of the rotary material locking cavity is in a smooth circular arc shape.

In the present application, the vibration device 9 is an electromagnetic vibrator. The root of the blade 32 is connected with the rotating shaft 31 into a whole.

The biomass fuel feeding device aims to control the feeding amount and thickness of biomass fuel by controlling the starting time and the stopping time and the speed of the rotation of the feeding device. In this application, still including rotatory locking material controlling means, rotatory locking material controlling means control rotatory locking material chamber work, rotatory locking material controlling means includes drive shaft 31 pivoted drive arrangement 4 and the positioner 5 of the rotatory locking material chamber rotation angle of location. The driving device 4 includes a motor 41 and a time relay 42 for controlling the motor 41 to rotate again after stopping for a set time, and the rotating shaft 31 is coupled to an output shaft of the motor 41.

In this application, there are four rotatory lock material chamber. The positioning device 5 comprises four positioning sensing points 51 and a proximity switch 52 for sensing the rotational position of the four positioning sensing points 51 to control the driving device 4, wherein the proximity switch 52 is an inductive proximity switch. The four positioning sensing points 51 are uniformly distributed along the circumferential direction, are arranged on the rotating shaft 31 and synchronously rotate corresponding to the four blades 32 on the rotating shaft 31 one by one. The proximity switch 52 is fixedly installed at one side of the rotation track of the four positioning sensing points 51. The proximity switch 52 is electrically connected to the time relay 42 to trigger the time relay 42 to control the motor 41 to rotate again after stopping for a set time.

In this application, the proximity switch 52 is electrically connected to the motor through the first intermediate relay and the ac contactor, the ac contactor is used for connecting the motor to supply power, and the proximity switch 52 controls the ac contactor to disconnect the circuit of the motor 41 through the first intermediate relay. The time relay 42 controls the disconnected ac contactor to reset and turn on the circuit of the motor 41 through the second intermediate relay.

When the device works, a certain rotary material locking cavity just rotates to the position blocking the biomass fuel falling outlet 21, at the moment, a positioning induction point 51 corresponding to a blade 32 on the rotary material locking cavity rotates to the position opposite to the proximity switch 52 along with the rotating shaft 31, when the positioning induction point 51 is opposite to the proximity switch 52, the proximity switch 52 is switched on, and the alternating current contactor is controlled to switch off a circuit of the motor 41 through a first intermediate relay, so that the motor 41 is stopped, the rotary material locking cavity is in a material locking stopping state, and the rotary material locking device and the biomass fuel falling outlet 21 can be prevented from being in a material discharging state; meanwhile, a time relay 42 connected with the proximity switch 52 is conducted and begins to delay, and the chain grate 1 sends the biomass fuel into the furnace within the set delay time; and after the time delay is set for time, the time relay 42 controls the alternating current contactor to close the circuit of the motor 41 through the second intermediate relay, so that the motor 41 rotates again, the motor 41 drives the rotating shaft 31 to link again, and the rotating material locking cavity starts to rotate for blanking again.

When the motor 41 rotates again, the positioning induction point 51 rotates along with the rotating shaft 31 and is staggered with the proximity switch 52, and the time relay 42, the first intermediate relay and the second intermediate relay are reset; at this point, the ac contactor closes the motor 41 circuit, and the motor 41 can continue to rotate until the next location sensing point 51 rotates to a position opposite the proximity switch 52. The reciprocating way avoids the phenomena of insufficient combustion and tempering of the biomass, and achieves the aims of energy conservation, environmental protection and safety.

In the application, the rotating shaft 31 and the output shaft of the motor 41 are connected and driven through the speed reducer 7. The speed reducer 7 is used for reducing the switching speed of the rotary material locking cavity, so that the rotary material locking cavity is matched with the chain grate 1 in a running mode, biomass can be fully combusted, and the purposes of energy conservation, environmental protection and safety are achieved.

In this application, 2 below of feeder hopper be equipped with can with biomass fuel that biomass fuel whereabouts export 21 was derived blows in the secondary air-supply pipe 61 in the boiler, for burning supplementary sufficient oxygen, plays the oxygenation effect, avoids biomass burning insufficient and tempering phenomenon to produce, reaches energy-concerving and environment-protective safety purpose. In this application, secondary air inlet pipe 61 has many, and many secondary air inlet pipes 61 are along the parallel interval arrangement in feeder hopper 2 below. A plurality of secondary air inlet ducts 61 are in communication with the primary air duct 6.

In this application, still including the biomass fuel who counts the pivot number of revolutions counter, biomass fuel consumes the counter and includes the permanent magnet to and induction coil, voltage amplifier, optoelectronic coupler and counter, the permanent magnet is installed on pivot 31. When motor 4 is rotatory, according to the electromagnetic induction principle, produce induced electromotive force among the induction coil, this induced electromotive force is enlargied through voltage amplification circuit, then produces the height level through hysteresis comparator, and then gives the counter with signal transmission through optoelectronic coupler circuit, and the number of revolutions of statistics motor is convenient for carry out the calculation of 31 numbers of revolutions of pivot, and the rotatory round of pivot 31 realizes four rotatory lock material chambeies and once feeds separately to the convenient statistics during operation feed volume.

In addition to the above embodiments, further improvements can be made on the above embodiments. The chain grate 1 has two, and two chain grate 1 set up side by side, and two 1 top one-to-one correspondences of chain grate are provided with one respectively the feeder hopper 2, two biomass fuel whereabouts export 21 on the feeder hopper 2 is followed pivot 31 axial linear arrangement, and two feeder hopper 2 all with same blade 32 cooperation formation in the pivot 31 can block up two the rotatory lock material chamber of biomass fuel whereabouts export 21. This structural design can realize that a traveling grate 1 carries alone and two traveling grates 1 carry simultaneously, has realized increaseing the purpose of biomass fuel delivery volume under the biomass fuel thickness condition not increasing, simple structure, convenient to use.

In addition to the above embodiments, further improvements can be made on the above embodiments. Because biomass fuel whereabouts export 21 is rectangular form in this application, pivot 31 sets up along biomass fuel whereabouts export 21 long side direction, and pivot 31 length is greater than biomass fuel whereabouts export 21 length, and the width between the blade 32 left and right sides on the pivot 31 also is greater than biomass fuel whereabouts export 21 length, can guarantee like this to get into the rotatory lock material intracavity completely from biomass fuel whereabouts export 21 whereabouts biomass fuel. For making things convenient for rotatory locking material chamber and traveling grate 1 cooperation, avoid a small amount of biomass fuel to scatter from the opening at both ends about the rotatory locking material chamber, can also be equipped with left end plate and right end plate on pivot 31, left end plate and right end plate are the plectane of taking the centre bore, and left end plate and right end plate are tightly overlapped in pivot 31 through the centre bore above that respectively, and left end plate and right end plate symmetry set up both ends and the opening at both ends about four rotatory locking material chambers are plugged up to the biomass fuel who avoids falling into rotatory locking material intracavity drops and influences the unloading from the opening at rotatory locking material chamber both ends.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a measurement economize material burner of no coal flashboard, includes traveling grate stoker (1), is close to top one side of traveling grate stoker (1) and sets up feeder hopper (2), is provided with biomass fuel whereabouts export (21) and the bottom skew wall with biomass fuel direction biomass fuel whereabouts export (21) on feeder hopper (2), and biomass fuel whereabouts export (21) below is provided with feed arrangement (3), feed arrangement (3) include circumference equipartition a plurality of blades (32) in pivot (31), and adjacent two blades (32) and pivot (31) form together and to plug up the rotatory lock material chamber of biomass fuel whereabouts export (21), its characterized in that: both sides of the root of the blade (32) and the rotating shaft (31) are smooth fillets, and the rotary material locking cavity is a cavity with a large opening at the upper end and a smooth inner cavity.

2. The coal-gate-free metering and material-saving combustion device as claimed in claim 1, wherein: the cross section of the inner surface of the rotary material locking cavity is in a smooth arc shape.

3. The coal-gate-free metering and material-saving combustion device as claimed in claim 1, wherein: and a vibrating device (9) is fixed on the outer side of the bottom inclined wall.

4. The coal-gate-free metering and material-saving combustion device as claimed in claim 1, wherein: the blade root and the rotating shaft (31) are connected into a whole.

5. The coal-gate-free metering and material-saving combustion device as claimed in claim 1, wherein: the number of the rotary material locking cavities is four.

6. The coal-gate-free metering and material-saving combustion device as claimed in claim 1, wherein: the biomass fuel feeding device is characterized in that the chain grates (1) are two, the two chain grates (1) are arranged side by side, one feeding hopper (2) and two biomass fuel falling outlets (21) on the feeding hopper (2) are arranged in an axial linear mode in the rotating shaft (31) in a one-to-one correspondence mode and the feeding hopper (2) is matched with blades (32) on the rotating shaft (31) to form a rotating locking cavity capable of blocking the two biomass fuel falling outlets (21).