CN218370601U

CN218370601U - Dustless ash unloading system of ash storehouse

Info

Publication number: CN218370601U
Application number: CN202221928397.7U
Authority: CN
Inventors: 邓山
Original assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Current assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-24
Anticipated expiration: 2032-07-25

Abstract

The utility model relates to a dust-free ash discharging system of an ash storehouse, which comprises an ash storehouse, an ash tank truck, an ash discharging unit and an ash returning unit; the ash storehouse is hollow, the bottom of the ash storehouse is provided with an ash outlet, and the upper part of one side of the ash storehouse is provided with an ash return port; the ash tank vehicle is provided with an ash storage tank; the top of the ash storage tank is provided with an ash inlet and an exhaust port; one end of the ash discharge unit is connected and communicated with the ash outlet, and the other end of the ash discharge unit can be connected and communicated with the ash inlet; one end of the ash returning unit can be communicated with one end of the exhaust port and one end of the ash discharging unit close to the ash inlet respectively, and the other end of the ash returning unit is connected with and communicated with the ash returning port. In the ash discharging process, the ash returning unit effectively relieves the condition that the air with the ash in the ash storage tank diffuses into the working environment in the first floor. After the ash is discharged, the ash remained in the ash discharge unit can not be directly diffused to the working environment in the first floor, and can be timely pumped away.

Description

Dustless ash unloading system of ash storehouse

Technical Field

The utility model relates to an unload grey technical field of system, especially relate to a dustless grey system of unloading of ash storehouse.

Background

In thermal power plants, coal is burned in boilers to produce soot. The ash is transported to the ash storehouse for storage through the ash transporting pipeline. Since the soot can be used as one of the raw materials of cement, the soot in the silo of the thermal power plant is often transferred to the cement manufacturing plant using a soot tanker.

The ash storage in the thermal power plant is usually arranged on two floors, and the ash tank truck is usually parked on the first floor. The ash storage tank is arranged on the ash storage tank truck, and an ash inlet and an exhaust port are formed in the top end of the ash storage tank. When the ash is transferred from the ash storehouse to the ash can truck, the ash storehouse and the ash inlet need to be communicated. Cigarette ash receives the effect of self gravity, in flowing into storing up the ash jar constantly, stores up the gas in the ash jar and constantly discharges from the gas vent to cigarette ash can smoothly flow into in the ash jar.

However, when the ash falls into the ash storage tank by gravity, dust is generated and is trapped in the air in the ash storage tank and flows to the outside of the ash storage tank along with the air in the ash storage tank, so that the working environment in a floor is poor and harm is caused to the environment and human bodies.

Therefore, how to improve the environment of the ash discharge place becomes a technical problem to be solved urgently in the field.

SUMMERY OF THE UTILITY MODEL

For solving the relatively poor problem of environment in the ash discharging place, the utility model provides a dust-free ash discharging system of ash storehouse.

The dust-free ash discharging system for the ash storehouse comprises an ash storehouse, an ash tank truck, an ash discharging unit and an ash returning unit;

the ash storehouse is hollow, the bottom of the ash storehouse is provided with an ash outlet, and the upper part of one side of the ash storehouse is provided with an ash return port;

the ash tank vehicle is provided with an ash storage tank; the top of the ash storage tank is provided with an ash inlet and an exhaust port;

one end of the ash discharge unit is connected and communicated with the ash outlet, and the other end of the ash discharge unit can be connected and communicated with the ash inlet;

one end of the ash returning unit can be communicated with one end of the exhaust port and one end of the ash discharging unit close to the ash inlet respectively, and the other end of the ash returning unit is connected with and communicated with the ash returning port.

In some specific embodiments, the ash returning unit comprises a dust removing device and a first fan;

the input end of the dust removing device can be respectively communicated with the exhaust port and one end of the ash discharge unit close to the ash inlet;

the input end of the first fan is communicated with the air outlet of the dust removing equipment, and the output end of the first fan is communicated with the dust return port.

In some of these embodiments, the ash discharge unit includes a first valve and a soot head;

one end of the first valve is communicated with the ash outlet, and the other end of the first valve is communicated with the coal ash scattering head;

the coal ash scattering head can be inserted into the ash hole and can be communicated with the input end of the dust removing device.

In some of these embodiments, a second valve is also included;

one end of the second valve is communicated with the coal ash scattering head, and the other end of the second valve is communicated with the input end of the dust removing device.

In some of these embodiments, the dust extraction device is a vacuum cleaner;

the first valve is a pneumatic valve;

the second valve is an electromagnetic valve.

In some embodiments, the top of the ash storehouse is provided with an air outlet;

the bag type dust collector and the second fan are also included;

the bag collector is fixed in the top of ash storehouse, and input and gas outlet intercommunication, output and the input intercommunication of second fan.

In some of these embodiments, a boiler is also included;

the boiler is communicated with the ash storehouse.

The utility model has the advantages that: the utility model discloses a dustless ash system of unloading of ash storehouse is through setting up the ash storage tank, unloading the ash in-process, and the gas in the ash storage tank constantly is discharged from the gas vent to cigarette ash can smoothly flow in the ash storage tank. The ash return port is arranged on the upper portion of one side of the ash storage, and compared with the mode that the ash return port is arranged on the lower portion of one side of the ash storage, the ash return port is more beneficial to enabling backflow ash to enter the ash storage, and the ash flowing into the ash storage is not easy to blast. By additionally arranging the ash returning unit, the condition that the air with the ash wrapped in the ash storage tank diffuses into the working environment in the first floor is effectively relieved by the ash returning unit in the ash discharging process. And one end of the ash returning unit is communicated with one end of the ash discharging unit close to the ash inlet. After the ash is discharged, the ash remained in the ash discharge unit can not be directly diffused to the working environment in the first floor, and can be timely pumped away. On the whole, the environment of the ash discharge place is effectively improved, and the harm to the environment and human bodies is reduced.

Drawings

Fig. 1 is a schematic block diagram of some specific embodiments of a dust-free dust unloading system of a dust warehouse of the present invention.

In the figure, 110, ash storehouse; 120. ash tanker; 121. a dust storage tank; 130. a dust discharging unit; 131. a first valve; 132. a coal ash bulk head; 140. an ash returning unit; 141. a dust removal device; 142. a first fan; 150. a second valve; 160. a bag type dust collector; 170. and a second fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axis", "circumferential" and the like refer to the orientation or positional relationship shown in the drawings, which are only for convenience of description of the present invention or simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, 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 invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be in communication within two elements or in interactive relationship between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1, a dust-free ash discharge system for an ash silo 110 includes an ash silo 110, an ash tanker 120, an ash discharge unit 130 and an ash return unit 140. The ash bin 110 is a hollow structure, and has an ash outlet at the bottom and an ash return opening at the upper part of one side. The ash tank truck 120 is provided with an ash storage tank 121, and the top of the ash storage tank 121 is provided with an ash inlet and an exhaust port. One end of the ash discharging unit 130 is connected and communicated with the ash outlet, and the other end can be connected and communicated with the ash inlet. One end of the ash returning unit 140 can be respectively communicated with the exhaust port and one end of the ash discharging unit 130 close to the ash inlet, and the other end is connected and communicated with the ash returning port.

In this embodiment, soot from the boiler can be stored in the ash silo 110. The ash storage tank 121 can store ash from the ash bin 110. Specifically, the ash in the ash bin 110 flows into the ash storage tank 121 after sequentially flowing through the ash outlet, the ash discharge unit 130 and the ash inlet under the action of gravity. In this process, the air with the ash in the ash storage tank 121 flows into the ash bin 110 after passing through the air outlet, the ash returning unit 140 and the ash returning opening in sequence. During the discharging of the ash, the gas in the ash storage tank 121 is continuously discharged from the exhaust port so that the ash can smoothly flow into the ash storage tank 121. The ash return port is arranged at the upper part of one side of the ash storage 110, so that compared with the form that the ash return port is arranged at the lower part of one side of the ash storage 110, the returned ash is more favorable for entering the ash storage 110, and the ash flowing into the ash storage 110 is not easy to fly. By additionally arranging the ash returning unit 140, the ash returning unit 140 effectively relieves the condition that the air with the ash wrapped in the ash storage tank diffuses into the working environment in the first floor in the ash discharging process. Furthermore, one end of the ash returning unit 140 is communicated with one end of the ash discharging unit 130 close to the ash inlet. After the ash discharge is completed, the ash remained in the ash discharge unit 130 will not directly diffuse into the working environment in the first floor, and will not be drawn away in time. On the whole, the environment of the ash discharge place is effectively improved, and the harm to the environment and human bodies is reduced.

In some embodiments of the present invention, the ash returning unit 140 includes a dust removing device 141 and a first fan 142, and the input end of the dust removing device 141 can be respectively communicated with the exhaust port and the end of the ash discharging unit 130 close to the ash inlet. The input end of the first fan 142 is communicated with the air outlet of the dust removing device 141, and the output end is communicated with the dust return port. Wherein the dust removing device 141 can filter the air flowing out of the exhaust port and/or the air flowing out of the dust discharging unit 130. The first fan 142 can provide power to the ash return port.

In some embodiments of the present invention, ash discharge unit 130 includes a first valve 131 and a soot dispensing head 132. One end of the first valve 131 is communicated with the ash outlet, and the other end is communicated with the soot dispersing head 132. By controlling the opening and closing of the first valve 131, it is possible to control whether the soot in the soot storage 110 flows out. The soot dispensing head 132 can be inserted into the soot opening and can communicate with the input end of the dust removing device 141. Here, it is noted that soot head 132 is generally a cylindrical structure including an upper flexible cylindrical section and a lower rigid cylindrical end. Lower rigidity section of thick bamboo section can insert into in the ash port, goes up flexible section of thick bamboo section and can take place deformation of certain degree for the axial length of coal ash dispersion head 132 can change at certain extent. In addition, the ash returning unit 140 further includes an ash returning and bulk loading head, which can be inserted into the exhaust port of the ash storage tank 121 and is communicated with the input end of the dust removing device 141. The structure of the ash return dispersing head is the same as that of the soot dispersing head 132. The coal ash scattering head 132 and the ash returning scattering head can respectively ensure the air tightness of the ash inlet and the exhaust port, and further improve the ash discharging environment.

In some embodiments of the present invention, the dust-free ash discharge system of the ash silo 110 further includes a second valve 150, one end of the second valve 150 is connected to the soot dispensing head 132, and the other end is connected to the input of the dust removing device 141. By controlling the opening and closing of the second valve 150, it is possible to control whether the dust removing device 141 is communicated with the soot dispersing head 132, and thus whether the dust removing device 141 is communicated with the soot discharge unit 130.

In some embodiments of the present invention, the dust removing device 141 is a vacuum cleaner, specifically, an industrial dust remover with model number MCJC-4000, or a bag type dust remover 160. The first valve 131 is a pneumatic valve, is driven by compressed air, has good effect on gas media and small-caliber liquid, is low in cost and is more convenient to maintain. The second valve 150 is an electromagnetic valve, can be opened and closed quickly, and has high reliability, easy flow control, long service life and limited pressure drop. The dust-free ash discharge system of the ash silo 110 further comprises a controller and an air compression pump. The controller is respectively electrically connected with the electromagnetic valve and the air compression pump. The controller controls whether the electromagnetic valve and the air compression pump work or not. The air compression pump is communicated with the pneumatic valve and can provide compressed air for the pneumatic valve.

In some embodiments of the present invention, an air outlet is provided at the top of the ash storage 110. The dust-free dust discharging system of the dust warehouse 110 further comprises a bag type dust collector 160 and a second fan 170, wherein the bag type dust collector 160 is fixed at the top of the dust warehouse 110, the input end of the bag type dust collector is communicated with the air outlet, and the output end of the bag type dust collector is communicated with the input end of the second fan 170. The air in the ash bin 110 can flow out through the air outlet. The second fan 170 can power the outflow of air within the ash bin 110. The bag type dust collector 160 can alleviate the diffusion of the air with the ash in the ash bin 110 to the outside of the ash bin 110, thereby improving the ash discharge environment.

In some embodiments of the present invention, the ash storage 110 dust-free unloading system further comprises a boiler, and the boiler is communicated with the ash storage 110.

The working process of the dust-free dust discharging system of the dust warehouse 110 is as follows:

first, the soot dispersing head 132 is inserted into the soot inlet of the soot storage tank 121, and the fly ash returning head is inserted into the exhaust port of the soot storage tank 121.

Then, the first valve 131, the dust removing device 141, the first fan 142, and the second fan 170 are turned on. At this time, the second valve 150 is in a closed state, and the interior of the ash storage 110 is in a negative pressure state.

After the ash discharge is completed, the first valve 131 is closed, and the second valve 150 is opened. After 3-5 minutes, the second valve 150, the dust removing device 141, the first fan 142 and the second fan 170 are closed.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," "one specific embodiment," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only the specific implementation manner of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the utility model within the scope of the present invention.

Claims

1. A dustless ash discharging system of ash storehouse, characterized by comprising:

the device comprises an ash storehouse, an ash tank truck, an ash discharge unit and an ash return unit;

the ash tank truck is provided with an ash storage tank; the top of the ash storage tank is provided with an ash inlet and an exhaust port;

the one end of returning the ash unit can respectively with the gas vent put the ash unit and be close to go into the one end intercommunication of ash mouthful, the other end with return the ash mouthful and be connected, and communicate.

2. The dust-free ash discharge system of the ash storehouse according to claim 1, wherein the ash return unit comprises a dust removing device and a first fan;

the input end of the dust removing equipment can be respectively communicated with the exhaust port and one end of the ash discharge unit close to the ash inlet;

3. A dust free ash discharge system of ash storehouse according to claim 2, wherein said ash discharge unit comprises a first valve and a soot dispersing head;

the coal ash bulk head can be inserted into the ash inlet and can be communicated with the input end of the dust removing device.

4. A dust free ash discharge system for ash storehouses according to claim 3, further comprising a second valve;

5. A dust-free ash discharging system for an ash storehouse as claimed in claim 4, wherein said dust removing device is a dust collector;

the first valve is a pneumatic valve;

the second valve is an electromagnetic valve.

6. A dust-free ash discharging system for an ash storehouse according to any one of claims 1 to 5, wherein an air outlet is arranged at the top of the ash storehouse;

the device also comprises a bag type dust collector and a second fan;

the bag type dust collector is fixed to the top of the ash storehouse, the input end of the bag type dust collector is communicated with the air outlet, and the output end of the bag type dust collector is communicated with the input end of the second fan.

7. A dust free ash discharge system of ash silo according to any one of the claims 1 to 5, characterized in that it further comprises a boiler;

the boiler is communicated with the ash storehouse.