CN213930962U - Storage and conveyor of carbide stove purification ash - Google Patents

Abstract

The utility model relates to the technical field of purified ash storage, in particular to a storage and conveying device for calcium carbide furnace purified ash, which comprises a nitrogen making machine, an air storage tank, a purified ash bin, a gate valve, a balance chamber, a rotary feeder, a blowing mechanism and an incineration boiler; the purified ash bin is provided with a purified ash feeding hole; the nitrogen making machine is communicated with the gas storage tank, the gas storage tank is communicated with the ash purification bin through a first pipeline, a discharge port of the ash purification bin is communicated with an inlet of the gate valve, and an outlet of the gate valve is communicated with the balance chamber; the balance chamber, the rotary feeder and the blowing mechanism are sequentially communicated, and the blowing mechanism is communicated with the incineration boiler; compared with the prior art, the storage and the conveyor of this application carbide stove purification ash utilize nitrogen protection, make purification ash and air isolated to prevent spontaneous combustion or the flash explosion that purification ash probably takes place, no raise dust pollution, safe and reliable, environmental protection and energy saving, economy is high-efficient.

Description

Storage and conveyor of carbide stove purification ash

Technical Field

The utility model relates to a purify grey storage technical field, concretely relates to storage and conveyor of carbide stove purification ash.

Background

Powdery solid waste, namely purified ash, collected after cooling, dedusting and purifying calcium carbide furnace tail gas of a calcium carbide plant is treated.

The purification ash contains a large amount of carbon powder and calcium oxide powder, and also contains a small amount of calcium carbide powder, sulfur, phosphorus and CO, so that spontaneous combustion is easy to occur after the purification ash is contacted with air. If the CO is contacted and mixed with air in the storage bin, safety accidents such as flash explosion and the like can occur when the explosion limit is reached.

The particle size of the purified ash is extremely fine and within 10 mu m, so that dust is easy to fly. Meanwhile, the purified ash contains a certain amount of carbon and volatile matters, the heat value is about 5-7 MJ/KG, and the value of comprehensive utilization is achieved.

The traditional purification ash utilization mode is landfill, adopts truck transportation, often takes place the accident that the spontaneous combustion of purification ash burns out the vehicle, and the purification ash easily drifts off the raise dust when unloading, leads to dust pollution, and in addition, the landfill mode also can lead to the pollution of groundwater.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a safe and reliable, environmental protection economy's purification ash is stored and conveyor to traditional transportation's not enough to and the inherent characteristic of purification ash.

The purpose of the utility model is realized through the following technical scheme: the application provides a storage and conveying device for calcium carbide furnace purified ash, which comprises a nitrogen making machine, an air storage tank, a purified ash bin, a gate valve, a balance chamber, a rotary feeder, a blowing mechanism and an incineration boiler; the purified ash bin is provided with a purified ash feeding hole; the nitrogen making machine is communicated with the gas storage tank, the gas storage tank is communicated with the ash purification bin through a first pipeline, a discharge port of the ash purification bin is communicated with an inlet of the gate valve, and an outlet of the gate valve is communicated with the balance chamber; the balance chamber, the rotary feeder and the blowing mechanism are sequentially communicated, and the blowing mechanism is communicated with the incineration boiler.

The device also comprises a bin top dust remover, the gas storage tank is communicated with one end part of the bin top dust remover through a second pipeline, and the other end of the bin top dust remover is communicated with the atmosphere.

Wherein, the bottom in the ash purification bin is provided with a gasification tank, and the gasification tank is communicated with a gas storage tank through a third pipeline.

Wherein, the gasification groove is equipped with a pair ofly at least, and the gasification groove in pairs uses the vertical plane in purification ash storehouse as the plane of symmetry and sets up.

Wherein, the bottom of the ash purification bin is arranged in an inverted cone shape.

Wherein, blowing mechanism sends the ware including sending, sends the feed inlet of ware and rotary feeder's discharge gate intercommunication, sends the side intercommunication of ware and is provided with roots's fan, sends the other side of ware and sets up with incineration boiler intercommunication.

Wherein, the purification ash bin still is equipped with the nitrogen gas sensor that is used for detecting the interior nitrogen gas concentration of purification ash bin.

The utility model has the advantages that: the utility model provides a storage of carbide stove purification ash and conveyor's working process is: the nitrogen making machine is used for preparing nitrogen and conveying the nitrogen into the gas storage tank for storage, the nitrogen in the gas storage tank is conveyed into the purified ash bin, so that the purified ash bin is filled with the nitrogen all the time and keeps a micro-positive pressure state, then the purified ash is conveyed into the purified ash bin through a feed inlet of the purified ash bin for storage, and the purified ash is isolated from air, so that spontaneous combustion or flash explosion possibly occurring in the purified ash is prevented, when the stored purified ash needs to be taken out, the gate valve is opened, the purified ash sequentially passes through the balance chamber and the rotary feeder and then enters the blowing mechanism, and the blowing mechanism blows the purified ash into the incineration boiler for combustion and recycling;

compared with the prior art, the storage and the conveyor of this application carbide stove purification ash utilize nitrogen protection, make purification ash and air isolated to prevent spontaneous combustion or the flash explosion that purification ash probably takes place, no raise dust pollution, safe and reliable, environmental protection and energy saving, economy is high-efficient.

Drawings

FIG. 1 is a flow chart of a storage and conveying device for calcium carbide furnace purified ash.

Reference numerals: the nitrogen generator comprises a nitrogen generator 1, a gas storage tank 2, a nitrogen sensor 3, a bin top dust remover 4, a purified ash bin 5, a gasification tank 6, a gate valve 7, a balance chamber 8, a rotary feeder 9, a Roots blower 10, a transmitter 11 and an incineration boiler 12.

Detailed Description

The invention will be further described with reference to the following examples.

The utility model discloses a storage of carbide stove purification ash and conveyor's embodiment please see figure 1, including nitrogen generator 1, gas holder 2, purification ash storehouse 5, storehouse top dust remover 4, push-pull valve 7, balance chamber 8, rotary feeder 9, blowing mechanism and incineration boiler 12. The ash purification bin 5 is provided with an ash purification feeding hole.

As an improvement, the nitrogen making machine 1 is communicated with the gas storage tank 2, and the gas storage tank 2 is communicated with the top of the ash purifying bin 5 through a first pipeline; the gas storage tank 2 is communicated with one end part of the bin top dust remover 4 through a second pipeline, and the other end of the bin top dust remover 4 is communicated with the atmosphere; the bottom in the ash purification bin 5 is provided with a gasification tank 6, and the gasification tank 6 is communicated with the gas storage tank 2 through a third pipeline. Dividing nitrogen into three paths: one path is sent to a gasification tank 6, the other path is sent to the top of a purified ash bin 5, and the other path is sent to a bin top dust remover 4. When the device normally operates, the upper space of the ash purification bin 5 is filled with nitrogen all the time, and a micro-positive pressure state is kept, so that the ash purification is isolated from the air. In addition, the ash purification bin 5 is also provided with a nitrogen sensor 3 for detecting the nitrogen concentration in the ash purification bin 5, the nitrogen concentration in the ash purification bin 5 is detected in real time through the nitrogen sensor 3, and the nitrogen charging amount is adjusted in time. A plurality of gasification groove 6 is installed to the bottom of purification ash storehouse 5, and gasification groove 6 can play not hard up material and prevent to harden and the effect of taking a bridge, and gasification groove 6 adopts nitrogen gas as the air supply, further improves the security of system. It should be noted that the bin top dust remover 4 is a small-sized bag dust remover, and when the bag is used for pulse dust removal, the bin top dust remover 4 adopts nitrogen as an air source, so that air can be prevented from entering the dust purification bin 5. Compared with the prior art, the storage and the conveyor of this application carbide stove purification ash utilize nitrogen protection, make purification ash and air isolated to prevent spontaneous combustion or the flash explosion that purification ash probably takes place, no raise dust pollution, safe and reliable, environmental protection and energy saving, economy is high-efficient.

Please refer to fig. 1, a discharge port of the ash purification bin 5 is communicated with an inlet of a gate valve 7, an outlet of the gate valve 7 is communicated with a balance chamber 8, and the balance chamber 8 is communicated with a feeding port of a rotary feeder 9. It should be noted that the upper chamber of the balance chamber 8 can be communicated with the top of the ash purification bin 5, so as to achieve pressure balance, prevent the ash purification from being overhead or bridged, and ensure smooth discharging of the ash purification. The rotary feeder 9 comprises an impeller which is composed of a plurality of blades, and the impeller can play a self-sealing role while feeding in a rotating mode, so that the balance chamber 8 is prevented from being blown by wind.

In the present embodiment, the blowing mechanism includes a sender 11, a feed port of the sender 11 communicates with a discharge port of the rotary feeder 9, a roots blower 10 is provided in communication with a side of the sender 11, and the other side of the sender 11 communicates with an incineration boiler 12. After the purified ash is conveyed into the sender 11 by the rotary feeder 9, other wind powder can be added into the sender 11 at the same time, and after mixing, an air source is provided by the Roots blower 10 and is blown into the incineration boiler 12 through a pipeline for incineration treatment.

In order to prevent the problem that the purification ash takes place to harden or bridge in purification ash storehouse 5, gasification groove 6 is equipped with a pair ofly, and mated gasification groove 6 sets up as the symmetry plane symmetry with the vertical plane of the axis that passes purification ash storehouse 5, and in addition, the bottom that purifies ash storehouse 5 is the back taper setting, can further improve the smoothness degree that purifies the ash and carry.

The system of this example was practiced where the treated amount of cleaned ash was 110 tons/day, the heat value of the cleaned ash was about 5234kJ/kg, and the particle size was about 0-3 μm.

The storage of calcium carbide stove purification ash and conveyor's of this embodiment working process does: nitrogen machine 1 preparation nitrogen gas is carried and is stored in gas holder 2, nitrogen gas in the gas holder 2 can be carried to in purifying ash storehouse 5, make and be full of nitrogen gas in purifying ash storehouse 5 always, and keep the pressure-fired state, then purifying ash is sent into purifying ash storehouse 5 through purifying ash storehouse 5's feed inlet and is stored, make purifying ash and air isolated, thereby prevent spontaneous combustion or the flash explosion that purifying ash probably takes place, when the purifying ash that will deposit is taken out to needs, open push-pull valve 7, purifying ash can be in the mechanism of blowing after 8 and rotary feeder of balancing chamber 9 in proper order, blow the mechanism and blow purifying ash to burning retrieval and utilization in incineration boiler 12 again. Compared with the prior art, the storage and the conveyor of carbide stove purification ash of this embodiment utilize nitrogen protection, make purification ash and air isolated to prevent spontaneous combustion or the flash explosion that purification ash probably takes place, no raise dust pollution, safe and reliable, environmental protection and energy saving, economy is high-efficient.

The above embodiments are only used for the explanation of the technical solution of the present invention, and can not be taken as the limitation of the structure of the present invention. Through this embodiment, the technical mode that also can obtain equal result of use through simple modification or equivalent replacement can be seen by ordinary skilled person and falls into the utility model discloses the right protection scope of technique.

Claims (7)

1. The utility model provides a storage and conveyor of carbide stove purification ash which characterized in that: comprises a nitrogen making machine, a gas storage tank, a purified ash bin, a gate valve, a balance chamber, a rotary feeder, a blowing mechanism and an incineration boiler;

the purification ash bin is provided with a purification ash feeding hole;

the nitrogen making machine is communicated with a gas storage tank, the gas storage tank is communicated with a purified ash bin through a first pipeline, a discharge port of the purified ash bin is communicated with an inlet of the gate valve, and an outlet of the gate valve is communicated with the balance chamber;

the balance chamber, the rotary feeder and the blowing mechanism are sequentially communicated and arranged, and the blowing mechanism is communicated with the incineration boiler.

2. The storage and conveying device for calcium carbide furnace purification ash according to claim 1, characterized in that: the air storage tank is communicated with one end of the bin top dust remover through a second pipeline, and the other end of the bin top dust remover is communicated with the atmosphere.

3. The storage and conveying device for calcium carbide furnace purification ash according to claim 1, characterized in that: the bottom in the ash purification bin is provided with a gasification tank, and the gasification tank is communicated with the gas storage tank through a third pipeline.

4. The storage and conveying device for calcium carbide furnace purification ash according to claim 3, characterized in that: at least one pair of gasification grooves is arranged, and the paired gasification grooves are symmetrically arranged by taking a vertical plane passing through the axis of the ash purification bin as a symmetrical plane.

5. The storage and conveying device for calcium carbide furnace purification ash according to claim 1, characterized in that: the bottom of the ash purification bin is arranged in an inverted cone shape.

6. The storage and conveying device for calcium carbide furnace purification ash according to claim 1, characterized in that: the blowing mechanism comprises a transmitter, a feed port of the transmitter is communicated with a discharge port of the rotary feeder, a Roots blower is communicated with one side of the transmitter, and the other side of the transmitter is communicated with the incineration boiler.

7. The storage and conveying device for calcium carbide furnace purification ash according to claim 1, characterized in that: the ash purification bin is also provided with a nitrogen sensor for detecting the concentration of nitrogen in the ash purification bin.

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