CN210905886U

CN210905886U - Novel stirring device and denitration equipment

Info

Publication number: CN210905886U
Application number: CN201921717412.1U
Authority: CN
Inventors: 王政
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-03
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a novel stirring apparatus and denitration device belongs to boiler flue gas and handles the field, and novel stirring apparatus includes the (mixing) shaft of vertical setting in the feed bin, the (mixing) shaft is connected with inverter motor, be provided with at least one stirring unit on the (mixing) shaft, the stirring unit includes the stirring rib of a plurality of spiral settings, when the (mixing) shaft is rotatory along an orientation, the stirring rib will denitration material in the feed bin upwards turns. The utility model discloses a stirring unit can make the denitration material keep loose state when upwards turning the material in the feed bin, no longer hardens, has solved the difficult problem unsmooth of unloading because of hardening the bringing.

Description

Novel stirring device and denitration equipment

Technical Field

The utility model relates to a boiler flue gas field of handling especially indicates a novel stirring apparatus and denitration device.

Background

In order to prevent NOx generated after coal in the boiler is combusted from polluting the environment, denitration treatment is carried out on boiler flue gas. Dry-spraying denitration is an economical boiler flue gas denitration method, the denitration material for dry-spraying denitration is solid particles, during use, the denitration material is put into a bin (feeding) on a high-level platform, a feeder at the bottom of the bin enables the denitration material to fall uniformly, then the falling denitration material is blown into a boiler along a hose through an air blower and the like, and the denitration material and NOx are subjected to reduction reaction inside the boiler to perform denitration.

In order to ensure that the denitration material becomes loose in the feed bin and prevent unsmooth blanking, the denitration material in the feed bin needs to be stirred by a stirring device. However, the existing stirring device adopts a paddle type, only partial stirring is carried out below the storage bin, and when a denitration material is wet, the material is easily compacted, so that the blanking is not smooth, and the denitration cannot reach the standard. And in actual operation, to the material of moist compaction, be difficult to the mediation, if dredge with rapping device, it is compacter to shake more, more difficult to solve the material compaction problem, and the unloading is more smooth, leads to the denitration more easily and is not up to standard.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a novel stirring apparatus and denitration device, the utility model discloses can make the denitration material keep loose state, no longer harden, solve the difficult problem smooth because of hardening the unloading of bringing.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

the utility model provides a novel stirring device, includes the (mixing) shaft of vertical setting in the feed bin, agitator shaft connection has inverter motor, be provided with at least one stirring unit on the (mixing) shaft, the stirring unit includes the stirring rib of a plurality of spiral settings, when the (mixing) shaft is rotatory along an orientation, the stirring rib will denitration material in the feed bin upwards turns.

Furthermore, the stirring unit further comprises a connecting rib, the connecting rib and the stirring rib are arranged in a crossed manner, and the connecting rib is connected with the stirring shaft.

Further, the cross-sections of the stirring ribs and the connecting ribs are circular.

Furthermore, variable frequency motor passes through the reduction gear and is connected with the top of (mixing) shaft, variable frequency motor and reduction gear setting are in the top of feed bin.

The utility model provides a denitration device, includes feed bin, boiler and aforementioned novel agitating unit, the feed opening of feed bin with the boiler is connected.

Further, denitration equipment still includes storage silo and screw conveyer, the height of storage silo is less than the height of feed bin, screw conveyer's first end stretches into the inside bottom of storage silo, screw conveyer's second end through first hose with the top of feed bin is connected.

Furthermore, a blanking device is arranged at the blanking port of the storage bin, the blanking device is cylindrical, a spiral groove is formed in the cylindrical side wall, and the blanking device is connected with the bottom end of the stirring shaft.

Further, a groove is arranged below the feed opening of the storage bin, one end of the groove is connected with the boiler through a second hose, and the other end of the groove is connected with the fan through a third hose.

Furthermore, an electronic metering scale is arranged below the stock bin and connected with a display control device through a signal line.

Further, denitration equipment still includes the base.

The utility model discloses following beneficial effect has:

the utility model discloses when using, inverter motor drives the (mixing) shaft rotatory, and the stirring rib of spiral setting ceaselessly upwards turns the material in the feed bin, because the stirring unit is the fretwork state, compares with the paddle stirring of prior art, the utility model discloses when upwards turning the material in the feed bin, can make the denitration material keep loose state, no longer harden, solved because of hardening the difficult problem that the unloading is not smooth of bringing.

Drawings

Fig. 1 is a schematic view of the novel stirring device of the present invention;

fig. 2 is the utility model discloses a denitration device's schematic diagram.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

On the one hand, the utility model provides a novel stirring device 100, as shown in fig. 1, including vertical setting (mixing) shaft 110 in feed bin 1, (mixing) shaft 110 is connected with inverter motor 120, is provided with at least one stirring unit 130 on (mixing) shaft 110, and stirring unit 130 includes a plurality of spiral arrangement's stirring rib 140, and when (mixing) shaft 110 was rotatory along a direction (for example counter-clockwise turning, also can clockwise rotation of course, the direction of rotation was decided by the spiral direction of stirring rib), stirring rib 140 upwards overturns the denitration material in the feed bin 1.

The utility model discloses when using, inverter motor drives the (mixing) shaft rotatory, and the stirring rib of spiral setting ceaselessly upwards turns the material in the feed bin, because stirring unit (stirring rib) is the fretwork state, compares with the paddle stirring of prior art, the utility model discloses when upwards turning the material in the feed bin, can make the denitration material keep loose state, no longer harden, solved because of the difficult problem that the unloading that hardens and bring is not smooth.

The stirring unit 130 may further include a connection rib 150, the connection rib 150 is disposed to intersect with the stirring rib 140, and the connection rib 150 is connected to the stirring shaft 110. The connecting ribs serve to connect the stirring ribs, provide support for them, and to connect the stirring ribs to the stirring shaft.

The cross sections of the stirring ribs and the connecting ribs are preferably circular, smooth and low in resistance.

The variable frequency motor 120 is preferably connected to the top end of the stirring shaft 110 through a reducer 160, and the variable frequency motor 120 and the reducer 160 are disposed above the silo 1.

On the other hand, the utility model provides a denitration device, as shown in fig. 1-2, including feed bin 1, boiler and aforementioned novel agitating unit 100, wherein, feed opening 2 and the boiler of feed bin 1 are connected. Denitration material of feed opening whereabouts of feed bin gets into the boiler, takes place reduction reaction with NOx inside the boiler, carries out the denitration.

As an improvement of the utility model, denitration device still includes storage silo 3 and screw conveyor 4, and storage silo 3 highly is less than the height of feed bin 1, and screw conveyor 4's first end stretches into storage silo 3's inside bottom, and screw conveyor 4's second end is connected with feed bin 1's top through first hose 5.

Because the high than higher of feed bin, consequently the material loading is very inconvenient, among the prior art or remove one bag of denitration material and put on high-order platform, and one bag is poured into the feed bin into again, or becomes a ton bag with the denitration material and hoists, puts into the feed bin, and the field operation is very inconvenient.

The utility model discloses in, set up the storage silo on low height (for example on bottom surface or the equipment base), when using, easily pour the denitration material into the storage silo, through screw conveyer, carry the high-order to the material, fall into the feed bin automatically, the effectual problem of having solved artifical transport and raising has not only alleviateed operating personnel's intensity of labour, and the operation is safe simple and convenient moreover.

Further, a blanking device 6 is arranged at the blanking port 2 of the storage bin 1, the blanking device 6 is cylindrical, a spiral groove 7 is formed in the cylindrical side wall, and the blanking device 6 is connected with the bottom end of the stirring shaft 110.

The lower glassware of prior art appears blockking up easily, and the backdraft, the unloading is not smooth, inhomogeneous problem, not only influences the denitration effect, the not up to standard phenomenon of denitration appears, and the material consumption is on the contrary many, uneconomic, very easily wearing and tearing, break down, life is short.

The utility model discloses a columnar structure of taking the helicla flute is chooseed for use to unloader to the preferred ceramic material that uses, unloader and agitator shaft are connected, drive rotatoryly through the (mixing) shaft, carry out the unloading, and can change unloading quantity through the frequency of adjusting inverter motor. Guaranteed the even whereabouts of material, the unloading is smooth and easy, unimpeded and quantity is adjustable, and difficult jam has not only solved because of the not smooth denitration that arouses of unloading is not up to standard, by the penalty problem of stopping production, has still practiced thrift running cost. Meanwhile, the service life is long, the damage is not easy, and the maintenance and the replacement are convenient.

A groove 8 is arranged below the feed opening 2 of the storage bin 1, one end of the groove 8 is connected with a boiler through a second hose, the other end of the groove 8 is connected with a fan 10 through a third hose 9, and the fan is preferably a roots blower. The denitration material of whereabouts is along the slot, and the propelling movement is to next station, by rated wind-force again, blows the denitration material to the boiler in.

As another kind of improvement of the utility model, 1 below in feed bin is provided with electronic weighing scale 11, and electronic weighing scale 11 is connected with display control equipment through signal line 12.

The material level of the existing denitration equipment is indicated inaccurately, the material is not fed or not known at all, the material shortage machine idles, the equipment is abraded greatly and is easy to damage, the denitration effect is influenced, the denitration is not up to the standard, and the denitration is penalized or stopped production. And a worker needs to be added to observe the amount of the materials in the stock bin, so that manpower and material resources are consumed more.

The utility model discloses an automatic electronic weighing scale who weighs through this electronic weighing scale, weighs the weight numerical value of denitration material in the feed bin, directly transmits to computer or display on, demonstrates how much of material in the feed bin, through computer control, automatic material conveying (or remind the manual work reinforced). A series of problems such as inaccurate material level, untimely feeding, excessive machine abrasion, high labor cost, substandard denitration and the like are effectively solved.

Denitration equipment still includes base 13, and each part setting is on the base.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel stirring device, its characterized in that, including the (mixing) shaft of vertical setting in the feed bin, agitator shaft connection has inverter motor, be provided with at least one stirring unit on the (mixing) shaft, stirring unit includes the stirring rib of a plurality of spiral settings, when the (mixing) shaft is rotatory along an orientation, the stirring rib will denitration material in the feed bin upwards turns.

2. The novel stirring device of claim 1, wherein the stirring unit further comprises a connecting rib, the connecting rib is arranged to intersect with the stirring rib, and the connecting rib is connected with the stirring shaft.

3. The novel stirring device of claim 2, wherein the cross-section of the stirring and connecting ribs is circular.

4. The novel stirring device as claimed in any one of claims 1 to 3, wherein the variable frequency motor is connected with the top end of the stirring shaft through a speed reducer, and the variable frequency motor and the speed reducer are arranged above the storage bin.

5. Denitration equipment, characterized in that, includes feed bin, boiler and the novel agitating unit of any of claims 1-4, the feed opening of feed bin with the boiler is connected.

6. The denitration apparatus according to claim 5, further comprising a storage bin and a screw conveyor, wherein the storage bin is lower than the storage bin, a first end of the screw conveyor extends into the inner bottom of the storage bin, and a second end of the screw conveyor is connected with the top of the storage bin through a first hose.

7. The denitration device according to claim 5, wherein a blanking device is arranged at a blanking opening of the storage bin, the blanking device is cylindrical, a spiral groove is formed in a cylindrical side wall of the blanking device, and the blanking device is connected with the bottom end of the stirring shaft.

8. The denitration apparatus according to claim 7, wherein a groove is provided below a feed opening of the storage bin, one end of the groove is connected with the boiler through a second hose, and the other end of the groove is connected with a fan through a third hose.

9. The denitration apparatus according to any one of claims 5 to 8, wherein an electronic weighing scale is arranged below the storage bin, and the electronic weighing scale is connected with a display control apparatus through a signal line.

10. The denitration apparatus of claim 9, further comprising a base.