CN207019095U - A conveying device for conveying bagasse to a boiler - Google Patents

Abstract

The utility model relates to the technical field of bagasse feeding equipment, in particular to a conveying device for conveying bagasse to a boiler, which comprises a bottom frame, a supporting seat and an impeller which are arranged on the bottom frame, a driving motor and a tripod which are arranged on the supporting seat, wherein the tripod is rotationally connected to a shaft body of the supporting seat and is a right-angled triangle; during the use, with the external bagasse that waits to carry via pipeline and feed port intercommunication, with the discharge opening of impeller and external boiler intercommunication, start driving motor, the external bagasse of impeller extraction, then with the bagasse under the centrifugal force effect of impeller in the discharge opening sprays the boiler for the bagasse is dispersed in the boiler, prevents that the bagasse from piling up and getting into the burning in the boiler, promotes the combustion efficiency of bagasse, reduces nitrogen oxide's formation.

Description

A conveying device for conveying bagasse to a boiler

technical field

The utility model relates to the technical field of bagasse feeding equipment, in particular discloses a conveying device for conveying bagasse to a boiler.

Background technique

The existing feeding system in front of the furnace of the bagasse boiler is to discharge the material through the push-pull scraper device on the belt conveyor. After the bagasse enters the feeder, it is transported into the furnace through the feeding nozzle of the feeder for combustion. This is a traditional process with low conveying efficiency. At the same time, it is easy to cause bagasse to pile up in the feeding nozzle of the feeder, and then cause the bagasse to enter the furnace for combustion under the condition of piles. The piles of bagasse cannot be fully burned in the furnace. It greatly affects the combustion efficiency of the furnace. Since the bagasse is not fully burned, it will reduce the thermal efficiency of the boiler and increase the amount of nitrogen oxides generated during the combustion process and increase the fuel cost.

Contents of the invention

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of this utility model is to provide a conveying device for conveying bagasse to the boiler, preventing the bagasse from being piled into the boiler for combustion, improving the combustion efficiency of bagasse, and reducing nitrogen oxidation. The generation of things.

In order to achieve the above object, a conveying device for conveying bagasse to boilers of the present utility model includes a chassis, a support seat and an impeller mounted on the chassis, a drive motor mounted on the support seat and a tripod, which are rotatably connected On the shaft body of the support base, the tripod is a right-angled triangle. One right-angle side of the tripod is installed on the support base, and the other right-angle side of the tripod is installed on the impeller. The driving motor drives the impeller to rotate through the shaft body. The impeller is provided with a feed hole and A discharge hole communicated with the feed hole, bagasse enters the impeller through the feed hole, and the bagasse in the impeller is transported to the boiler through the discharge hole.

Preferably, the impeller includes a shell mounted on the chassis, and a wheel disc rotatably connected in the shell. The drive motor drives the wheel plate to rotate through the shaft body. The feed hole and the discharge hole are recessed from the shell. The central axis of the discharge hole coincides with the central axis of the wheel disc, and the opening of the discharge hole is arranged upward.

Preferably, the impeller also includes a fixed seat, the fixed seat includes a bottom plate and two support plates spaced apart from each other, the bottom plate is installed on the bottom frame, one end of the two support plates is connected to the bottom plate, and the other end of the two support plates is connected to the bottom frame. Connected to the shell, the base plate and the two support plates form a triangle, and the ends of the two support plates away from the base plate extend towards each other.

Preferably, the wheel disc includes a shaft disc rotatably connected to the housing, a plurality of blades arranged on the shaft disc and spaced apart from each other, mounted on the housing, the shaft disc or the enclosure of the blades, and the plurality of blades surround the center of the shaft disc The axis is in a circular array, and the cover covers multiple blades; the drive motor drives the shaft disk to rotate through the shaft body, and the central axis of the feed hole coincides with the central axis of the shaft disk; the feed hole runs through the cover and reveals the space between adjacent blades. Gap, the gap between adjacent blades communicates with the discharge hole.

Preferably, the support seat is equipped with a protective cover between the driving motor and the impeller, and a coupling is connected in rotation in the protective cover, and the two ends of the coupling are respectively connected to the output shaft of the driving motor and one end of the shaft body. The other end of the shaft body is connected with the impeller.

Preferably, the support base is equipped with a bearing box located between the drive motor and the impeller, and the shaft body is covered with two self-aligning roller bearings spaced apart from each other, and the two self-aligning roller bearings are installed in the bearing box .

Preferably, the bearing box is equipped with a sealing cover for covering the self-aligning roller bearing, the shaft body passes through the sealing cover, and the sealing cover is provided with a plurality of rolling balls for contacting the shaft body, and the plurality of rolling balls surround the shaft body central axis setting.

Preferably, the bearing box is provided with an accommodating groove for accommodating the self-aligning roller bearing, the accommodating groove is recessed from the surface of the bearing box, and the sealing cover is provided with a fixing part attached to the surface of the bearing box and The stop part protrudes into the accommodation groove, and the stop part is used to abut against the outer ring of the spherical roller bearing.

The beneficial effects of the utility model: in actual use, the bagasse to be transported from the outside is connected with the feed hole through the pipeline, the discharge hole of the impeller is connected with the boiler outside, the driving motor is started, the impeller extracts the bagasse from the outside, and then the bagasse Under the action of the centrifugal force of the impeller, it is sprayed into the boiler through the discharge hole, so that different bagasse can be dispersed into the boiler, preventing the bagasse from being piled into the boiler for combustion, improving the feeding efficiency of bagasse and the combustion efficiency of bagasse, and reducing nitrogen oxides reduce the amount of flue gas discharged from the boiler, reduce the generation of harmful gases, and prolong the service life of the boiler tail gas treatment equipment.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the left side view of the impeller of the present utility model;

Fig. 3 is the sectional view of the roulette of the present utility model;

FIG. 4 is a partially enlarged schematic diagram of part A in FIG. 1 .

Reference signs include:

1—underframe 2—support seat 3—impeller

4—Drive motor 5—Tripod 6—Axis body

7—Inlet hole 8—Outlet hole 9—Shell

11—wheel disc 12—fixed seat 13—bottom plate

14—support plate 15—shaft plate 16—envelope

17—protective cover 18—coupling 19—bearing housing

21—Spherical roller bearing 22—Seal cover 23—Rolling ball

24—fixed portion 25—stop portion.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and drawings, and the content mentioned in the implementation mode is not to limit the utility model.

Please refer to Fig. 1 to Fig. 3, a kind of conveying device for conveying bagasse to the boiler of the present utility model comprises a chassis 1, a support seat 2 and an impeller 3 installed on the chassis 1, installed on The driving motor 4 and the tripod 5 on the support base 2 rotate the shaft body 6 connected to the support base 2. In this embodiment, the outer side of the shaft body 6 is provided with two rolling bearings spaced from each other, and the two rolling bearings are installed on the support base. On the seat 2, the tripod 5 is a right-angled triangle, one right-angled side of the tripod 5 is installed on the support seat 2, and the other right-angled side of the tripod 5 is installed on the impeller 3, and the principle of stability of the triangle is used to stabilize the impeller 3 It is stably positioned on the base frame 1 and the support seat 2 to prevent the impeller 3 from shaking during operation; the driving motor 4 drives the impeller 3 to rotate through the shaft body 6, and the impeller 3 is provided with a feeding hole 7 and a connection with the feeding hole 7 Through the discharge hole 8, the outside bagasse enters the impeller 3 through the feed hole 7, and the bagasse in the impeller 3 is transported to the external boiler through the discharge hole 8.

In actual use, the bagasse to be transported from the outside is communicated with the feed hole 7 through the pipeline, and while the bagasse is input into the feed hole 7, hot air for drying the bagasse is blown into the feed hole 7, and the hot air is effectively mixed with the bagasse. Mix together to reduce the humidity of the bagasse, connect the discharge hole 8 of the impeller 3 with the external boiler, then start the drive motor 4, the impeller 3 extracts the bagasse from the outside, so that the bagasse enters the impeller 3 through the feed hole 7, and the impeller Under the action of the centrifugal force of 3, the bagasse in the impeller 3 is sprayed into the boiler through the discharge hole 8. Since the particle size of the bagasse is different, the gravity of bagasse with different particle sizes is mostly different. Under the centrifugal force of the impeller 3 , so that different bagasses can be dispersed into the boiler, prevent the bagasse from being piled into the boiler for combustion, improve the feeding efficiency of bagasse and the combustion efficiency of bagasse, reduce the generation of nitrogen oxides, reduce the amount of flue gas discharged from the boiler, and reduce harmful Gas generation, prolonging the service life of boiler tail gas treatment equipment.

The impeller 3 includes a casing 9 installed on the chassis 1, a wheel disk 11 rotatably connected in the casing 9, the drive motor 4 drives the wheel disk 11 to rotate through the shaft body 6, and the feed hole 7 and the discharge hole 8 are uniform. The outer surface of the casing 9 is recessed, the central axis of the feed hole 7 coincides with the central axis of the wheel 11, the discharge hole 8 is located at the upper end of the casing 9, and the outlet of the discharge hole 8 is arranged upward. After the bagasse enters the impeller 3, since the central axis of the feeding hole 7 coincides with the central axis of the wheel disc 11, under the centrifugal force of the wheel disc 11, the bagasse can move from the center position of the wheel disc 11 to the edge of the wheel disc 11. The position is moved so that the bagasse can obtain the longest possible acceleration time; when the bagasse flies out from the edge of the wheel 11, it is ensured that the bagasse flies out at a relatively high speed, increasing the dispersion area of bagasse of different sizes in the boiler, and assisting Improve the burning efficiency of bagasse. In addition, since the outlet of the discharge hole 8 is arranged upward, when the bagasse is ejected from the discharge hole 8 of the impeller 3, the bagasse can be sprayed into the upper end of the boiler, so that the bagasse can start burning at the upper end of the boiler. The combustion can be continued during the descent, which further assists in improving the combustion efficiency of the bagasse and prevents the bagasse from being directly sprayed to the lower end of the boiler and cannot be fully burned.

The impeller 3 also includes a fixed seat 12, the fixed seat 12 includes a base plate 13 and two support plates 14 spaced from each other, the base plate 13 is installed on the chassis 1, and one end of the two support plates 14 is connected to the base plate 13, The other ends of the two support plates 14 are connected to the housing 9, the base plate 13 and the two support plates 14 form a triangle, and the ends of the two support plates 14 away from the base plate 13 extend towards each other; the triangle has stability Based on the principle, it is ensured that the casing 9 is firmly connected to the chassis 1 to prevent the impeller 3 from shaking during use.

The disc 11 includes a shaft disc 15 rotatably connected in the casing 9, a plurality of blades arranged on the shaft disc 15 and spaced apart from each other, a cover 16 mounted on the casing 9, the shaft disc 15 or the blades, The blades and the disc 15 of the utility model are made of special materials, which have extremely high wear resistance. Compared with the traditional blades in the prior art, the service life of the blades is increased by 6-10 times, and multiple blades surround The central axis of the shaft disk 15 is in an annular array, preferably, the blades are arc-shaped, and the cover 16 is used to cover a plurality of blades; the drive motor 4 drives the shaft disk 15 to rotate through the shaft body 6, and the central axis of the feed hole 7 is aligned with the shaft. The central axis of the disk 15 coincides; the feed hole 7 runs through the cover 16 and reveals the gap between adjacent blades, and the gap between the adjacent blades communicates with the discharge hole 8; under the centrifugal force of the wheel disk 11, the external The bagasse is sucked into the gap between adjacent blades through the feed hole 7 and then sprayed into the boiler through the discharge hole 8 .

The support base 2 is provided with a protective cover 17 positioned between the driving motor 4 and the impeller 3, and the protective cover 17 is rotationally connected with a shaft coupling 18, and the two ends of the coupling 18 are respectively connected to the output shaft of the driving motor 4 and the One end of the shaft body 6 and the other end of the shaft body 6 are connected with the shaft disc 15 of the impeller 3 . The shaft coupling 18 has the functions of buffering, damping and improving the dynamic performance of the shaft system, so that the rotation of the output shaft of the driving motor 4 can be smoothly transmitted to the shaft body 6, thereby improving the performance of the conveying device of the present invention. By adding a protective cover 17, the protective cover 17 is used to protect the coupling 18, prevent external objects from colliding with the coupling 18, and at the same time prevent particles such as dust from falling into the coupling 18 and affect the normal use of the coupling 18 .

Please refer to Figures 1 to 4, the support base 2 is equipped with a bearing housing 19 located between the drive motor 4 and the impeller 3, and the outer side of the shaft body 6 is provided with two spherical roller bearings spaced apart from each other. 21. Two spherical roller bearings 21 are installed on the bearing housing 19. By adding the self-aligning roller bearing 21, the wear between the shaft body 6 and the bearing housing 19 is reduced, and the service life of the shaft body 6 is prolonged; at the same time, the self-aligning roller bearing 21 is used to effectively compensate the output shaft of the driving motor 4 and the shaft body 6 The coaxiality error between the shaft body 6 and the wheel disc of the impeller 3 ensures the smooth operation of the conveying device of the present utility model.

The bearing box 19 is equipped with a sealing cover 22 for covering the self-aligning roller bearing 21, and the sealing cover 22 covers the self-aligning roller bearing 21 to prevent external dust from falling into the self-aligning roller bearing 21 and affecting its In normal use, the shaft body 6 runs through the sealing cover 22 , and the sealing cover 22 is provided with a plurality of rolling balls 23 for abutting against the outer surface of the shaft body 6 , and the plurality of rolling balls 23 are arranged around the central axis of the shaft body 6 . In actual use, the characteristics that the rolling ball 23 can freely roll relative to the sealing cover 22 can prevent the shaft body 6 from contacting the same position on the sealing cover 22 for a long time, reduce the wear between the shaft body 6 and the sealing cover 22, and extend the shaft length. The service life of body 6 and sealing cover 22.

The bearing box 19 is provided with an accommodating groove for accommodating the self-aligning roller bearing 21, the accommodating groove is recessed from the outer surface of the bearing box 19, and the sealing cover 22 is provided with a The fixing part 24 on the top and the stop part 25 protruding into the receiving groove, the fixing part 24 is installed on the bearing housing 19, and the stop part 25 is used to abut against the outer ring of the spherical roller bearing 21. When the sealing cover 22 covers the self-aligning roller bearing 21 , the sealing cover 22 is used to abut against the self-aligning roller bearing 21 to effectively prevent the self-aligning roller bearing 21 from falling from the bearing housing 19 .

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (8)

1. A kind of 1. conveying device for being used to for bagasse to be delivered to boiler, it is characterised in that：Including chassis, the support of chassis is installed in Seat and impeller, are installed in the motor and tripod of support base, are rotationally connected with the axis body of support base, tripod is right angle three Angular, a right-angle side of tripod is installed in support base, and another right-angle side of tripod is installed in impeller, motor warp Wheel rotation is driven by axis body, impeller is provided with charging hole and the discharge opening connected with charging hole, bagasse enter leaf via charging hole In wheel, the bagasse in impeller is delivered to boiler via discharge opening.
2. 2. the conveying device according to claim 1 for being used to for bagasse to be delivered to boiler, it is characterised in that：The impeller bag The wheel disc for being installed in the shell of chassis, being rotationally connected with shell is included, motor rotates via axis body driving wheel disc, charging Hole, discharge opening form from shell is recessed, and the central axis of charging hole overlaps with the central axis of wheel disc, the opening court of discharge opening Upper setting.
3. 3. the conveying device according to claim 2 for being used to for bagasse to be delivered to boiler, it is characterised in that：The impeller is also Including fixed seat, fixed seat includes bottom plate and two supporting plates being spaced, and bottom plate is installed in chassis, and the one of two supporting plates End is all connected to bottom plate, and the other ends of two supporting plates is all connected to shell, bottom plate and two supporting plates formation triangles, two Close direction extension forms towards each other for the one end of supporting plate away from bottom plate.
4. 4. the conveying device according to claim 2 for being used to for bagasse to be delivered to boiler, it is characterised in that：The wheel disc bag The reel being rotationally connected with shell is included, the multiple blades for being arranged at reel and being spaced, is installed in shell, reel or blade Sealing cover, for multiple blade rings around the central axis circular array of reel, sealing cover covers multiple blades；Motor is via axis body Reel is driven to rotate, the central axis of charging hole overlaps with the central axis of reel；Charging hole is through sealing cover and appears adjacent leaf Gap between piece, the gap between adjacent blades connect with discharge opening.
5. 5. the conveying device according to claim 1 for being used to for bagasse to be delivered to boiler, it is characterised in that：The support base The protective cover being equiped between motor and impeller, shaft coupling, the both ends point of shaft coupling are rotatably connected in protective cover Not Lian Jie the output shaft of motor and one end of axis body, the other end of axis body is connected with impeller.
6. 6. the conveying device according to claim 1 for being used to for bagasse to be delivered to boiler, it is characterised in that：The support base The bearing housing being equiped between motor and impeller, axis body are arranged with two self-aligning roller bearings being spaced, and two Individual self-aligning roller bearing is assembled on bearing housing.
7. 7. the conveying device according to claim 6 for being used to for bagasse to be delivered to boiler, it is characterised in that：The bearing housing The closure that self-aligning roller bearing is set for cover is equiped with, axis body runs through closure, and closure, which is provided with, to be used to abut the more of axis body Individual rolling pearl, multiple central axis settings for rolling pearl around axis body.
8. 8. the conveying device according to claim 7 for being used to for bagasse to be delivered to boiler, it is characterised in that：The bearing housing Provided with the storage tank for being installed with self-aligning roller bearing, storage tank forms from the surface of bearing housing is recessed, and closure is provided with and is sticked Fixed part and the stop section that protrudes into storage tank in the surface of bearing housing, stop section are used to abut the outer of self-aligning roller bearing Circle.