CN215982617U - Ash removal device and slag drying machine - Google Patents

Abstract

The utility model relates to the technical field of slag drying machines, and discloses an ash cleaning device and a slag drying machine, wherein the slag drying machine comprises a shell and the ash cleaning device, the ash cleaning device is arranged in the shell and comprises a conveying device and a conveying device, the shell is also provided with a dust hopper, ash and slag enter the slag drying machine from the dust hopper, the lower side of the dust hopper is provided with the conveying device, the ash and slag fall on the conveying device and are conveyed into a slag bin by the conveying device, the other end of the conveying device is a dust accumulation area, one end of the conveying device is positioned in the dust accumulation area, the other end of the conveying device is arranged on the upper side of the conveying device, and the conveying device is arranged as a spiral conveyor or a hose auger to convey the dust to the conveying device, so that the problem that the dust is accumulated at the tail part of the slag drying machine is solved.

Description

Ash removal device and slag drying machine

Technical Field

The utility model relates to the technical field of slag drying machines, in particular to an ash removal device and a slag drying machine.

Background

At present, with the maturity of the technology of the dry slag extractor of the boiler, and the dry slag extractor system has the advantages of energy saving, water saving, environmental protection and the like, the dry slag extractor system is rapidly and widely developed at home and abroad and becomes the most competitive slag extractor system of the boiler. A plurality of domestic coal-fired units are reformed into slag drying machines, and most of newly-built units use the slag drying machines as main slag removing equipment. However, in order to reduce the fuel cost of the thermal power plant, a mixed combustion mode of multiple coals is often selected, so that the problem that the actual ash production amount is larger than the designed ash production amount is caused, the load of the slag drying machine is overlarge, and a large amount of ash is accumulated at the tail part of the slag drying machine.

In the prior art, the deposited dust at the tail part of the dry slag machine can only be cleaned manually, which not only wastes a large amount of manpower and material resources, but also pollutes the surrounding environment. If the accumulated dust is not cleaned in time, the result of the blocking and jumping of the dry slag machine is also caused, the safe and stable operation and the output of the operation unit are influenced, and therefore the problem of urgently waiting to be solved is to be solved by timely cleaning the accumulated dust at the tail part of the dry slag machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an ash cleaning device and a slag drying machine, wherein the slag drying machine comprises a shell and the ash cleaning device, the ash cleaning device is arranged in the shell and comprises a conveying device and a conveying device, the shell is also provided with a dust hopper, ash and slag enter the slag drying machine from the dust hopper, the lower side of the dust hopper is provided with the conveying device, the ash and slag fall on the conveying device and are conveyed into a slag bin by the conveying device, the other end of the conveying device is a dust accumulation area, one end of the conveying device is positioned in the dust accumulation area, the other end of the conveying device is arranged on the upper side of the conveying device, and the conveying device is set to be a spiral conveyor or a hose auger so that the dust is conveyed to the conveying device again, so that the problem that the dust is accumulated at the tail part of the slag drying machine is solved.

In some embodiments of the present application, a soot cleaning device is provided, comprising: one end of the conveying device is an ash accumulation area, the other end of the conveying device is positioned in the slag bin, and the conveying device is used for conveying the accumulated ash to the slag bin; the transportation assembly, the one end of transportation assembly is arranged in the deposition area, and the other end sets up the upside of conveyer, the transportation assembly be used for with the deposition by the deposition area is transported to the upside of conveyer.

In some embodiments of the present application, the transport assembly comprises: the first screw conveyor is arranged at the lower side of the conveying device, one end of the first screw conveyor is provided with an ash inlet extending into the ash accumulation area, and the other end of the first screw conveyor is provided with a first motor for driving the first screw conveyor to rotate so as to convey ash; the other end of the first spiral conveyor is communicated with the lower end of the second spiral conveyor, the second spiral conveyor is obliquely arranged, the upper end of the second spiral conveyor is arranged on the upper side of the conveying device, and the upper end of the second spiral conveyor is provided with a downward ash outlet and a second motor.

In some embodiments of the present application, the transportation assembly further includes a switch, and the switch is connected to the first motor and the second motor and is configured to control the synchronous on and off of the first motor and the second motor.

In some embodiments of this application, the transportation subassembly is including hose auger and third motor, the one end of hose auger has the ash inlet of deepening the chance mouth, and the other end setting is in conveyer's upside, and be provided with towards lower open-ended ash outlet and third motor at the other end.

In some embodiments of the present application, an air inlet is disposed at a lower portion of the ash deposition area, and a fan is disposed at the air inlet.

In some embodiments of the present application, the conveying device includes a gear and a conveyor belt, the gear is connected with the conveyor belt in a matching manner, and the gear is used for driving the conveyor belt to move.

In some embodiments of the present application, a slag drying machine is further provided, which includes an ash removing device and a housing, wherein an ash bucket is disposed on the housing and is used for communicating with the outside; the ash hopper is arranged on the upper side of the conveying device and used for enabling ash to fall onto the conveying device.

In some embodiments of the present application, the housing is provided with a viewing window, and the viewing window is a closed structure and is made of a transparent material.

In some embodiments of the present application, an access door is disposed on the housing, the access door being disposed relative to the ash deposition area.

Compared with the prior art, the ash cleaning device and the slag drying machine provided by the embodiment of the utility model have the beneficial effects that:

the ash falling into the tail part of the dry slag machine is conveyed into a slag bin by arranging a conveying device; by arranging the conveying assembly, the accumulated ash in the ash accumulation area is conveyed to the upper side of the conveying device again, so that the accumulated ash enters the slag bin along with the conveying device, the problem of ash accumulation is solved, the problem of jamming and jumping of the slag drying machine due to excessive ash accumulation is avoided, and the safety of the slag drying machine is improved; the conveying assembly is arranged into the first spiral conveyor and the second spiral conveyor, so that the deposited ash moves by the spiral conveyors, the process of conveying the deposited ash from the bottom to the upper part is completed, the structure is simple, and the modification cost is low; the bottom of the dust accumulation area is provided with the air inlet and the fan, so that the accumulated dust is driven to enter the dust inlet of the first spiral conveyor, partial accumulated dust is prevented from being accumulated at the dead angle of the dust inlet, and the problem of dust accumulation is thoroughly solved; still through being provided with observation window and access door, make the inside deposition condition of workman real-time observation to carry out timely maintenance to abnormal state.

Drawings

FIG. 1 is a front view of a slag dryer in an embodiment of the present invention;

FIG. 2 is a side view of a slag dryer in an embodiment of the present invention;

FIG. 3 is a top view of a slag dryer in an embodiment of the present invention;

fig. 4 is a front view of a slag dryer in another embodiment of the utility model.

In the figure, 100, a conveying device; 110. a gear; 120. a conveyor belt; 200. a transport assembly; 210. a first screw conveyor; 211. a first motor; 220. a second screw conveyor; 221. a second motor; 230. a hose dragon; 231. a third motor; 300. an air inlet; 400. a housing; 410. an ash hopper; 420. an observation window; 430. an access door; 500. and a dust accumulation area.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In some embodiments of the present application, as shown in fig. 1, a slag drying machine is provided, which includes a housing and a dust removing device disposed inside the housing, wherein an ash bucket 410 is further disposed on the housing.

The ash removal device is arranged at the tail part of the ash drying machine, the ash bucket 410 is arranged at the upper side of the ash removal device, the ash bucket 410 is an inlet of ash, and the ash enters the ash drying machine from the ash bucket 410 and directly falls onto the ash removal device.

In some embodiments of the present application, the ash removal device includes a conveyor 100 and a transport assembly 200.

The conveying device 100 comprises a gear 110 and a conveying belt 120, the purpose of conveying ash and slag is achieved through the matching transmission of the gear 110 and the conveying belt 120, the upper side of the conveying belt 120 is arranged on the lower side of an ash hopper 410, one end of the conveying belt 120 is an ash deposition area 500, the other end of the conveying belt extends into a slag bin, and the upper side of the conveying belt 120 moves from one end of the ash deposition area 500 to one end of the slag bin.

It should be noted that, in an ideal state, ash falling on the conveyor belt 120 enters the ash bin according to the movement track of the conveyor belt 120 to achieve ash removal, but in practical applications, due to the reason of limiting the combustion cost, the combustion coal is mixed, the ash falling on the conveyor belt 120 is often greater than the preset bearing capacity, the ash directly rolls to the ash deposition area 500 opposite to the movement direction of the conveyor 100, and along with the rising of the ash deposition amount, the problem can be solved only by a worker carrying manner, and therefore in the embodiment of the present application, the conveying assembly 200 is further provided to solve the problem.

In some embodiments of the present application, one end of the transport assembly 200 is located in the ash deposition area 500 and the other end is disposed on the upper side of the conveyor 100 for transporting the ash from the ash deposition area 500 to the upper side of the conveyor assembly and back into the travel path of the conveyor assembly to follow the conveyor 100 into the slag bin.

In some embodiments of the present application, as shown in fig. 1-3, the transfer assembly includes a first screw conveyor 210 and a second screw conveyor 220.

The first screw conveyer 210 is arranged at the lower side of the conveying device 100, and is arranged obliquely along the moving direction of the conveying device 100 on a horizontal plane, wherein one end of the first screw conveyer is provided with an ash inlet extending into the ash deposition area 500, and the other end of the first screw conveyer is provided with a first motor 211.

The first motor 211 drives the screw shaft to rotate at the other end, and ash is carried from one end to the other end as the screw shaft rotates.

In an embodiment of the present application, the dust inlet is a hopper-shaped, and one side of the dust inlet is tightly attached to the ground, so as to avoid a dead angle between the dust inlet and the dust deposition area 500, and still have a problem of small accumulation, thereby ensuring that all the dust deposition can enter the first screw conveyor 210 under the driving of the air inlet 300 and the screw shaft.

The other end of the first screw conveyor 210 is communicated with the lower end of the second screw conveyor 220, the second screw conveyor 220 is placed on the vertical surface in an inclined mode, the upper end of the second screw conveyor 220 is arranged on the upper side of the conveying device 100, and the upper end of the second screw conveyor is provided with an ash outlet and a second motor 221, wherein the ash outlet is opened downwards.

The deposited ash is conveyed to the lower end of the second screw conveyor 220 by the first screw conveyor 210, conveyed to the upper end of the second screw conveyor 220 under the driving of the second motor 221, discharged to the upper side of the conveying device 100 through an ash outlet with a downward opening, and enters the slag bin along with the conveying device 100.

In some embodiments of the present application, an air inlet 300 is further disposed at the lower side of the dust deposition area 500, and a fan is disposed at the air inlet 300.

It should be noted that the ash accumulation area 500 is an uncertain range, and not all the ash accumulation will enter the ash inlet along the expected track, so that at the later stage of the ash cleaning procedure, the fan will be turned on to drive the residual ash accumulation to gradually accumulate in the ash inlet, further more ash accumulation will enter the transportation assembly 200, and the cleaning effect is optimized.

In some embodiments of the present application, a switch is further provided, and the switch is connected to the first motor 211 and the second motor 221, and is used for controlling the synchronous on and off of the first motor 211 and the second motor 221; when the staff observes that the dust deposition area 500 needs to be cleaned, only one person is needed to turn on the switch, start the dust cleaning program or close the dust cleaning program, so that the dust cleaning process can be completed, the manpower use is reduced, and the dust cleaning efficiency is improved.

In another embodiment of the present application, the conveying assembly is provided as a hose auger 230, one end of the hose auger has an ash inlet extending into the ash deposition area 500, the other end is disposed at the upper side of the conveyor 100, and the other end is provided with an ash outlet opening facing downwards and a third motor 231.

The ash in the ash deposition area 500 moves along one end of the hose auger to the other end under the driving of the third motor 231, and when the ash deposits on the other end, the ash deposits drop onto the conveying device 100 through the ash outlet and then enter the ash bin.

Preferably, the hose of the hose dragon is a high-temperature-resistant and wear-resistant hose.

The hose auger has a simple structure, can be bent compared with a conventional screw conveyor, so that only one pipeline and one motor are needed to bypass the conveying device 100, dust transportation from bottom to top is completed, the operation process is simple and convenient, and the energy consumption is reduced.

In other embodiments of the present application, any device capable of transporting the deposited ash from the bottom to the top from the deposition area to the upper side of the conveyor is within the scope of the present application.

In some embodiments of the present application, as shown in fig. 1, a viewing window 420 and an access door 430 are also provided on the housing 400.

The observation window 420 is disposed at a side opposite to the dust deposition area 500, the observation window 420 is a closed structure and is disposed as a transparent material, and in other embodiments of the present application, the observation window 420 is a glass material or a transparent plastic material.

The inspection door is disposed at a position opposite to the dust deposition area 500, and the entire housing 400 is of a closed structure when the inspection door is closed.

It should be noted that, since the dust cleaning device inside the casing 400 is a device for treating dust, the environment inside the casing 400 is not good, and thus, each part of the casing 400 is configured to be airtight, thereby preventing the dust inside from flying to the outside and affecting the external environment.

It should be further noted that, by arranging the observation window 420, the worker can observe the internal condition of the ash removal device at any time, and when the ash is accumulated too much, the motor switch is turned on in time to perform the ash removal procedure; when most of accumulated dust is cleaned, the fan is started in time to clean the edge; when the ash removal is finished, closing in time; when the ash removal procedure is abnormal, the device is overhauled in time, the whole process can be completed by one person, and a large amount of manpower and material resources are saved.

Still through setting up access door 430, need not remove other positions of doing the sediment machine, solitary ash removal device overhauls, has improved ash removal device's maintenance efficiency, has maintained the work efficiency who does the sediment machine.

The working process of the utility model is as follows: when a worker observes that the accumulated dust in the dust accumulation area 500 is enough in the observation window 420, a switch is turned on, a dust cleaning program is started, the first motor 211 and the second motor 221 are started simultaneously, or the third motor 231 is started, the accumulated dust at the dust inlet enters the conveying assembly 200, the accumulated dust enters from the dust inlet and is discharged from the dust outlet under the transmission of the first spiral conveyor 210 and the second spiral conveyor 220 or the transmission of the hose auger 230, and falls on the upper side of the conveying device 100 along with the dust outlet with the downward opening, so that the accumulated dust enters the slag bin along with the moving direction of the conveying device 100, after the dust cleaning program runs for a period of time, the worker observes that most of the accumulated dust at the dust inlet is cleaned, then the fan is turned on, and the fan blows the accumulated dust at the edge to the dust inlet, so that the accumulated dust at the edge is treated; and after the ash removal is finished, the worker closes the switch again to finish the ash removal program.

In summary, the embodiment of the utility model provides an ash removal device and a slag drying machine, wherein ash falling into the tail part of the slag drying machine is conveyed into a slag bin by arranging a conveying device; by arranging the conveying assembly, the accumulated ash in the ash accumulation area is conveyed to the upper side of the conveying device again, so that the accumulated ash enters the slag bin along with the conveying device, the problem of ash accumulation is solved, the problem of jamming and jumping of the slag drying machine due to excessive ash accumulation is avoided, and the safety of the slag drying machine is improved; the conveying assembly is arranged into the first spiral conveyor and the second spiral conveyor, so that the deposited ash moves by the spiral conveyors, the process of conveying the deposited ash from the bottom to the upper part is completed, the structure is simple, and the modification cost is low; the bottom of the dust accumulation area is provided with the air inlet and the fan, so that the accumulated dust is driven to enter the dust inlet of the first spiral conveyor, partial accumulated dust is prevented from being accumulated at the dead angle of the dust inlet, and the problem of dust accumulation is thoroughly solved; still through being provided with observation window and access door, make the inside deposition condition of workman real-time observation to carry out timely maintenance to abnormal state.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (9)

1. An ash removal device, characterized by comprising:

one end of the conveying device is an ash accumulation area, the other end of the conveying device is positioned in the slag bin, and the conveying device is used for conveying the accumulated ash to the slag bin;

the conveying assembly is used for conveying deposited ash to the upper side of the conveying device from the ash depositing area.

2. The ash removal device of claim 1, wherein the transport assembly comprises:

the first screw conveyor is arranged at the lower side of the conveying device, one end of the first screw conveyor is provided with an ash inlet extending into the ash accumulation area, and the other end of the first screw conveyor is provided with a first motor for driving the first screw conveyor to rotate so as to convey ash; the other end of the first spiral conveyor is communicated with the lower end of the second spiral conveyor, the upper end of the second spiral conveyor is arranged on the upper side of the conveying device, and the upper end of the second spiral conveyor is provided with an ash outlet and a second motor, wherein the ash outlet is open downwards.

3. The ash removal device of claim 2, wherein the transport assembly further comprises a switch connected to the first motor and the second motor for controlling the synchronous on and off of the first motor and the second motor.

4. The ash removing device according to claim 1, wherein the transportation assembly comprises a hose auger and a third motor, one end of the hose auger is provided with an ash inlet extending into the ash deposition area, the other end of the hose auger is arranged at the upper side of the conveying device, and the other end of the hose auger is provided with an ash outlet and a third motor, which are opened downwards.

5. The ash removal device of claim 1, wherein the lower part of the ash deposition area is provided with an air inlet, and a fan is arranged at the air inlet.

6. The ash removal device of claim 1, wherein the transmission device comprises a gear and a conveyor belt, the gear is connected with the conveyor belt in a matching way, and the gear is used for driving the conveyor belt to move.

7. A slag drying machine is characterized by comprising the ash cleaning device as claimed in any one of claims 1 to 5 and a shell, wherein an ash hopper is arranged on the shell and is used for being communicated with the outside; the ash hopper is arranged on the upper side of the conveying device and used for enabling ash to fall onto the conveying device.

8. The slag drying machine as claimed in claim 7, wherein the shell is provided with an observation window, and the observation window is of a closed structure and is made of transparent material.

9. Slag dryer according to claim 7, characterized in that an access door is provided on the housing, said access door being arranged in relation to the ash accumulation zone.

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