阅读说明：本技术 一种污泥焚烧给料播撒机 (Sludge incineration feeding and scattering machine ) 是由 施剑 于 2021-07-19 设计创作，主要内容包括：本发明提供一种污泥焚烧给料播撒机,包括：离心仓,离心仓设有用于向离心仓输送污泥物料的进料通道,离心仓设有与焚烧炉相连通的送料口；设置于离心仓内的带有叶轮的转轴,转轴与离心仓转动相连,转轴的轴线与焚烧炉的中心线相垂直；动力装置,动力装置驱动转轴转动从而带动叶轮转动,污泥物料通过进料通道进入离心仓被叶轮由送料口离心甩出,被甩出的污泥物料沿转轴切线方向呈轮抛物线均匀的播撒至焚烧炉的炉床上,形成分布均匀的污泥物料层。本发明使污泥物料均匀的播撒在炉床上,不会造成污泥堆积,解决了由于送料分布不均匀造成燃烧不充分及导致炉床受热不均匀的问题,同时大大提升了送料效率,相比传统螺旋机的送料效率提高了30％以上。(The invention provides a sludge incineration feeding and scattering machine, which comprises: the centrifugal bin is provided with a feeding channel for conveying sludge materials to the centrifugal bin, and the centrifugal bin is provided with a feeding port communicated with the incinerator; the rotating shaft is arranged in the centrifugal bin and provided with an impeller, the rotating shaft is rotationally connected with the centrifugal bin, and the axis of the rotating shaft is vertical to the central line of the incinerator; the power device drives the rotating shaft to rotate so as to drive the impeller to rotate, the sludge material enters the centrifugal bin through the feeding channel and is centrifugally thrown out by the impeller through the feeding port, and the thrown sludge material is uniformly scattered to a hearth of the incinerator in a parabolic manner along the tangential direction of the rotating shaft to form a sludge material layer which is uniformly distributed. The invention can uniformly spread the sludge material on the hearth, can not cause sludge accumulation, solves the problems of insufficient combustion and uneven heating of the hearth caused by uneven feeding distribution, greatly improves the feeding efficiency, and improves the feeding efficiency by more than 30 percent compared with the feeding efficiency of the traditional screw machine.)

1. A sludge incineration feed scattering machine is characterized by comprising:

the centrifugal bin is provided with a feeding channel for conveying sludge materials to the centrifugal bin, and the centrifugal bin is provided with a feeding port communicated with the incinerator;

the rotating shaft is arranged in the centrifugal bin and provided with an impeller, the rotating shaft is rotationally connected with the centrifugal bin, and the axis of the rotating shaft is vertical to the central line of the incinerator;

the power device is used for providing power and drives the rotating shaft to rotate so as to drive the impeller to rotate, sludge materials enter the centrifugal bin through the feeding channel and are centrifugally thrown out from the feeding port by the impeller, and the thrown sludge materials are uniformly scattered on a hearth of the incinerator in a parabolic manner along the tangential direction of the rotating shaft to form a sludge material layer which is uniformly distributed.

2. A sludge incineration feed scattering machine as claimed in claim 1, characterized in that the centrifugal bin is arranged on the wall of the incinerator and the feeding opening is arranged at one side of the incinerator.

3. The sludge incineration feeding and spreading machine as claimed in claim 1, wherein two ends of the rotating shaft are respectively provided with a flywheel, the rotating shaft drives the flywheels at the two ends to rotate, and the flywheels are used for emptying sludge residing in the centrifugal bin.

4. A sludge incineration feed spreader as claimed in claim 1, wherein the feed channel comprises a chute, the discharge outlet of which communicates with the centrifugal bin and is located at the upper part of the centrifugal bin.

5. A sludge incineration feed spreader as claimed in claim 4, wherein the chute is angled from vertical.

6. A sludge incineration feeding and spreading machine as claimed in claim 1, wherein an insulating layer is provided on the outer wall of the centrifugal bin.

7. A sludge incineration feed scattering machine as claimed in claim 1, wherein the centrifugal bin comprises a hollow cylindrical structure with a notch on one side and a straight portion, and the straight portion is formed by extending one side of the notch outwards, and the notch is used as the feed port.

8. A sludge incineration feed scattering machine as claimed in any one of the claims 1 to 7, characterized in that the power means comprises a motor and a speed reducer arranged on the outer wall of the centrifugal bin.

9. The sludge incineration feed scattering machine of claim 8, wherein the motor is a variable frequency motor.

10. A sludge incineration feed spreader according to any one of the claims 1-7, wherein the impeller is made of an alloy material.

Technical Field

The invention relates to the field of sludge incineration in the environmental protection industry, in particular to a sludge incineration feeding and scattering machine.

Background

At present, the conventional sludge feeding device (as shown in fig. 4) mainly adopts a screw conveyor 11 or a double screw conveyor 11 for feeding and feeding into an incinerator. The feeding mode only fulfills the aim of feeding the incinerator and does not consider the problem of uniform distribution of the sludge entering the incinerator. And because screw conveyer 11 drives spiral pushing equipment through motor and speed reducer, slowly pushes away mud and burns burning furnace slowly, and mud drops to the burning bed of burning furnace bottom behind getting into burning furnace by the action of gravity for a large amount of mud can be piled up in burning a small area of bed, and form the material and pile up, and such condition can cause serious burning insufficient, also can cause burning bed local temperature inhomogeneous, and whole efficiency also can be by the loss. Therefore, the traditional sludge feeding device has the following problems: firstly, stockpiling is easily caused on a hearth, and the combustion is insufficient; secondly, the temperature distribution of the hearth is easy to be uneven, so that inconsistent hot corrosion of the hearth is caused, and troubles are caused for uniformly replacing accessories at the later stage; thirdly, because the material is slowly returned in a spiral manner, the feeding speed and the feeding efficiency are lower; fourthly, due to insufficient combustion, the rear-end smoke emission can not reach the standard, and simultaneously, the slag discharge of the hearth of the incinerator is blocked; fifthly, as the feeding speed of the screw conveyor 11 is low, once the screw conveyor is overhauled, the sludge at the feeding port of the screw conveyor can be quickly dried and hardened by high temperature in the furnace after the screw conveyor is stopped, so that the screw conveyor is blocked. Therefore, it is very important to design a feeding device which not only has high feeding efficiency, but also can solve the problem of uniform distribution of the sludge fed into the incinerator.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a sludge incineration feeding and scattering machine, which can uniformly scatter the sludge fed into an incinerator on a hearth and improve the feeding efficiency.

In order to solve the above problems, the present invention provides a sludge incineration feeding spreader, comprising:

the centrifugal bin is provided with a feeding channel for conveying sludge materials to the centrifugal bin, and the centrifugal bin is provided with a feeding port communicated with the incinerator;

the rotating shaft is arranged in the centrifugal bin and provided with an impeller, the rotating shaft is rotationally connected with the centrifugal bin, and the axis of the rotating shaft is vertical to the central line of the incinerator;

the power device is used for providing power and drives the rotating shaft to rotate so as to drive the impeller to rotate, sludge materials enter the centrifugal bin through the feeding channel and are centrifugally thrown out from the feeding port by the impeller, and the thrown sludge materials are uniformly scattered on a hearth of the incinerator in a parabolic manner along the tangential direction of the rotating shaft to form a sludge material layer which is uniformly distributed.

Preferably, the centrifugal bin is arranged on the wall of the incinerator, and the feeding port is arranged on one side of the incinerator.

Preferably, the two ends of the rotating shaft are respectively provided with a flywheel, the rotating shaft drives the flywheels at the two ends to rotate, and the flywheels are used for emptying sludge residing in the centrifugal bin.

Preferably, the feeding channel comprises a chute, a discharge port of the chute is communicated with the centrifugal bin, and the discharge port is positioned at the upper part of the centrifugal bin.

Preferably, the elephant trunk and the vertical direction are arranged at an included angle.

Preferably, the outer wall of the centrifugal bin is provided with a heat insulation layer.

Preferably, the centrifugal bin comprises a hollow cylindrical structure with a notch on one side and a linear part, the linear part is formed by extending one side of the notch outwards, and the notch is used as the feeding port.

Preferably, the power device comprises a motor and a speed reducer which are arranged on the outer wall of the centrifugal bin.

Preferably, the impeller is made of alloy materials.

Compared with the prior art, the invention has at least one of the following beneficial effects:

the device of the invention creatively provides feeding in a centrifugal spreading mode aiming at sludge incineration feeding, so that sludge materials are uniformly spread on a hearth, sludge accumulation cannot be caused, the problems of insufficient combustion and nonuniform hearth heating caused by nonuniform feeding distribution are solved, the problems of unqualified rear-end flue gas emission and unsmooth slag discharge are avoided, and meanwhile, the sludge materials are centrifugally thrown out through the impeller rotating at high speed, so that the feeding efficiency is greatly improved by more than 30% compared with the feeding efficiency of the traditional screw machine.

According to the device, the flywheels are further arranged at the two ends of the rotating shaft, and after the motor stops working, the flywheels can rotate for a period of time through inertia, so that sludge residing in the centrifugal bin is emptied, and the condition of hardening and blocking is avoided.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the operation of a sludge incineration feed spreader according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the installation of the power unit and the centrifugal bin in accordance with a preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of a sludge incineration feed spreader according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view showing an operating state of a conventional sludge feeding apparatus in the background art;

the scores in the figure are indicated as: 1 is an incinerator, 2 is a centrifugal bin, 3 is a rotating shaft, 4 is an impeller, 5 is a power device, 6 is a heat-insulating layer, 101 is a furnace wall, 102 is a furnace bed, 103 is a sludge material layer, 201 is a feeding channel, 202 is a feeding port, and 11 is a screw conveyer.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Referring to fig. 1, a sludge incineration feed spreader according to a preferred embodiment of the present invention is shown in a schematic view in operation, and is mounted on a furnace wall 101 of an incinerator 1, which comprises a centrifugal bin 2, a rotating shaft 3 with an impeller 4 and a power unit 5.

The centrifugal bin 2 is fixed to the furnace wall 101. The centrifugal bin 2 is provided with a feeding channel 201 and a feeding port 202, wherein sludge materials are input into the centrifugal bin 2 through the feeding channel 201; the feeding port 202 is arranged at one side in the furnace and above the hearth 102, in order to feed the sludge materials along the parabolic path, the feeding port 202 is arranged at a position with a certain height difference with the hearth 102, and on the other hand, because the temperature of the hearth 102 is the highest, the feeding port 202 and the hearth 102 keep the height difference, so that the temperature at the position of the feeding port 202 is relatively lower, and a certain protection effect can be achieved on the spreading device. The feeding port 202 is communicated with the incinerator 1, and the sludge material in the centrifugal bin 2 is fed into the incinerator 1 through the feeding port 202. Referring to fig. 3, a rotating shaft 3 with an impeller 4 is axially installed in the centrifugal chamber 2, and the rotating shaft 3 is rotatably connected with the centrifugal chamber 2, and the rotating shaft 3 is driven by a power device 5 to rotate in the centrifugal chamber 2. The axis of the rotating shaft 3 is perpendicular to the center line of the incinerator 1.

As a preferable mode, referring to fig. 3, the impeller 4 is composed of a plurality of blades, and the plurality of blades are uniformly installed on the outer wall of the rotating shaft 3 so as to intersect in the axial direction of the rotating shaft 3. The blades may be made of a high strength alloy material. Preferably, the blade 4 is connected to the rotating shaft 3 by welding.

In the above embodiment, the power device 5 provides power for the rotation of the rotating shaft 3. An output shaft of the power device 5 is connected with the rotating shaft 3, the rotating shaft 3 is driven to rotate through the power device 5 so as to drive the impeller 4 to rotate, the sludge material enters the centrifugal bin 2 through the feeding channel 201 and is centrifugally thrown out by the impeller 4 at a high speed, the thrown-out sludge is uniformly scattered on the hearth 102 of the incinerator 1 in a parabola shape along the tangential direction of the rotation of the impeller 4, and a sludge material layer 103 which is uniformly distributed is formed on the hearth 102, so that the sludge is uniformly scattered in the hearth 102 in the feeding process. Preferably, the power device 5 includes a motor and a speed reducer, and the motor is matched with the speed reducer to drive the rotating shaft 3 to rotate. More preferably, a variable frequency regulating motor is adopted, and the dynamic regulation of the sowing radius can be realized by regulating the rotating speed of the rotating shaft 3.

Because the temperature of the hearth is very high, the parts of the centrifugal bin 2, the rotating shaft 3 and the like which are contacted with the high temperature in the furnace are all made of high-strength high-temperature-resistant alloy materials.

In other preferred embodiments, two flywheels are respectively disposed at two ends of the rotating shaft 3, and the flywheels are connected to the rotating shaft 3 and driven to rotate synchronously by the rotation of the rotating shaft 3. As a preferred mode, the flywheel adopts high temperature resistant metal blade, and metal blade accessible welding links to each other with the pivot, drives pivot and blade rotation through electrical apparatus and speed reducer. Even if the motor stops rotating accidentally, the flywheel on the rotating shaft 3 maintains the rotation for a period of time through inertia, sludge materials are rapidly thrown and emptied, the problem of sludge blockage caused by the halt of the motor under emergency or accidental conditions is effectively solved, and sludge in the centrifugal bin 2 due to accidents can be effectively avoided.

In other partially preferred embodiments, the feed channel 201 comprises a chute, the feed opening 202 of which communicates with the centrifugal bin 2, and the feed opening 202 is located in the upper part of the centrifugal bin 2. As an optimal mode, the elephant trunk and vertical direction are the contained angle setting, make the elephant trunk slope install on centrifugation storehouse 2, are convenient for the mud material and send into in the centrifugation storehouse 2 fast.

In other preferred embodiments, the outer wall of the centrifugal bin 2 is provided with a heat-insulating layer 6 to prevent heat from being dissipated outwards, and meanwhile, the situation that the temperature of the outer wall of the centrifugal bin 2 is too high to scald operators is avoided.

In other partially preferred embodiments, the centrifuge cartridge 2 comprises a hollow cylindrical structure with a side notch and a straight portion, and the straight portion is formed by extending one side of the notch outwards. The notch is used as a feeding port 202, and the feeding port 202 of the structure is beneficial to throwing out sludge materials. The section of the centrifugal bin 2 is of an arc-shaped structure. In the specific installation, one side of the notch of the centrifugal bin 2 is fixed to the lower furnace wall 101, and the end of the linear portion is fixed to the upper furnace wall 101, that is, the notch faces the inside of the incinerator 1.

In other preferred embodiments, the motor and the reducer are mounted on the outer wall of the centrifugal bin 2, as shown in fig. 2, in view of withstanding the high temperature inside the furnace and facilitating the feeding and installation.

The sludge incineration feeding and scattering machine of the embodiment adopts a centrifugal scattering mode to feed materials into the incinerator, and thoroughly solves the problem of uneven feeding distribution of the traditional sludge feeding device, thereby solving the problem of uneven heating of a hearth and avoiding the occurrence of inconsistent thermal corrosion of the hearth; meanwhile, the impeller rotating at a high speed is utilized to centrifugally throw away sludge materials, so that the feeding efficiency is greatly improved, and compared with the traditional device which is spirally and slowly returned, the feeding efficiency is higher than 30%. Because the sludge enters the incinerator to be uniformly distributed and fully combusted, the rear-end flue gas treatment can easily reach the national emission standard, and the slag discharge working condition of the hearth is greatly improved. Even if the problems of maintenance are met, the material can not be left in the sowing machine, and the blockage can not be caused. When the motor stops rotating unexpectedly, the flywheel is installed by rotating the rotating shaft, so that materials can be rapidly sprayed and emptied through inertia, and the problem of sludge blockage caused by motor halt is effectively solved.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.