CN212805694U - Layered ash removal device for chicken manure boiler flue - Google Patents

Abstract

The utility model discloses a chicken manure boiler flue layered ash removal device, which comprises a primary fan, a primary air pipe and at least two ash removal branch pipes, wherein each ash removal branch pipe is arranged in parallel along the inner wall of a vertical ash removal flue to be removed from the top down, each ash removal branch pipe is provided with an air inlet and an air outlet, the air outlet of each ash removal branch pipe is respectively provided with a purging spray head, each purging spray head is provided with at least one air spray opening, the utility model discloses a dust removal flue, including the deashing flue, the deashing flue is treated to the deashing flue, the air intake intercommunication of deashing flue is treated to the air intake, and the air intake intercommunication of deashing branch pipe is treated to the air intake, and the air intake is equipped with the manometer that is used for showing the wind pressure on the air intake respectively to the one end of air pipe and the air intake intercommunication of each deashing branch pipe, and the shower nozzle that sweeps of every deashing branch pipe passes treats that the deashing flue stretches into easily deposition position in treating the deashing. The boiler is simple in structure, easy to install and maintain and capable of guaranteeing safe and economical operation of the boiler.

Description

Layered ash removal device for chicken manure boiler flue

Technical Field

The utility model relates to a biomass power generation field especially relates to a chicken manure boiler flue layering ash removal device.

Background

The chicken manure boiler is a biomass boiler which takes a mixture of chicken manure and rice husk as fuel. Flue gas that chicken manure produced after burning in the chicken manure boiler is discharged through flue gas system, flue gas system includes vertical boiler flue, dust remover and chimney, communicates through the flue respectively between boiler flue and dust remover, dust remover and the chimney, still installs the draught fan between dust remover and the chimney. Because the fuel characteristics of the chicken manure are high moisture and low calorific value, the low calorific value is about 2000 kilocalories, and the moisture accounts for about 40%, the smoke generated after the chicken manure is combusted easily causes boiler dust deposition at the turning part of the flue, so that the cross section area of the flue ventilation is reduced, the integral ventilation of the boiler is further influenced, the load of an induced draft fan is increased, the integral load of the boiler is seriously reduced, and certain influence is generated on the safe and economic operation of the boiler. Therefore, the problem of dust deposition at the corner of the flue is solved, and the method is one of important work related to the safe and economic operation of the boiler.

Disclosure of Invention

An object of the utility model is to provide a chicken manure boiler flue layering ash removal device.

Realize the utility model discloses the technical scheme of purpose is: a layered ash removal device for a chicken manure boiler flue, which is arranged at a corner where a flue to be ash removed turns from vertical to parallel, which comprises a primary fan, a primary air pipe and at least two ash cleaning branch pipes, wherein each ash cleaning branch pipe is arranged in parallel from top to bottom along the inner wall of a flue to be cleaned vertically, each ash cleaning branch pipe is provided with an air inlet and an air outlet, the air outlet of each ash cleaning branch pipe is respectively provided with a purging spray head, each purging spray head is provided with at least one air jet opening, the utility model discloses a dust removal flue, including the deashing flue, the deashing flue is treated to the deashing flue, the air intake intercommunication of deashing flue is treated to the air intake, and the air intake intercommunication of deashing branch pipe is treated to the air intake, and the air intake is equipped with the manometer that is used for showing the wind pressure on the air intake respectively to the one end of air pipe and the air intake intercommunication of each deashing branch pipe, and the shower nozzle that sweeps of every deashing branch pipe passes treats that the deashing flue stretches into easily deposition position in treating the deashing.

Furthermore, each electromagnetic valve is in communication connection with a time relay, and the controller is used for controlling the opening and closing of each electromagnetic valve, so that the purpose of controlling the ash removal device in a layered and time-sharing manner is achieved.

Furthermore, a first manual valve is installed at one end, close to the primary fan, of each electromagnetic valve, a second manual valve is installed at one end, close to the to-be-cleaned flue, of each electromagnetic valve, and an emptying valve is installed between each electromagnetic valve and the corresponding second manual valve. When the working state of the electromagnetic valve needs to be checked, the electromagnetic valve to be checked is closed firstly, then the first manual valve is closed, the emptying valve is opened, then the electromagnetic valve is opened, if one air comes out from the emptying valve, the electromagnetic valve works normally, otherwise, the electromagnetic valve belongs to a fault state, the second manual valve is closed when the fault occurs, and the electromagnetic valve on the ash removal branch pipe is checked and maintained.

Furthermore, the blowing nozzle is hollow and cylindrical, and the air injection openings are arranged at intervals in the circumferential direction of the blowing nozzle. The air outlet pressure is uniform, and the ash removal efficiency is improved.

The utility model discloses a chicken manure boiler flue layering ash removal device, it provides the medium wind that sweeps of clearance deposition by a fan, opens the solenoid valve on each deashing branch pipe through the timesharing and realizes that flue inner corner punishment layering time sharing sweeps the clearance, then takes out the flue with the deposition granule in the flue under the effect of the negative pressure gravitation of flue gas system's draught fan, carries to the ash storehouse after the sack cleaner is collected to reach the automatic mesh that cleans the deposition. The structure is simple, the installation and the maintenance are easy, and the safe and economic operation of the boiler is ensured.

Drawings

Fig. 1 is the embodiment of the utility model discloses chicken manure boiler flue layering ash removal device's structural schematic diagram. Wherein, the solid arrow represents the trend of the blowing medium wind of the primary fan, and the hollow arrow represents the trend of the smoke.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in figure 1, a chicken manure boiler flue layering ash removal device, it is installed in boiler flue 10 by perpendicular parallel corner of turning, it includes that once fan 1, air pipe 2 and three deashing branch pipes 3, each deashing branch pipe 3 along perpendicular to boiler flue 10's inner wall top-down parallel arrangement, every deashing branch pipe 3 all has air intake 31 and air outlet 32, the air outlet 32 of each deashing branch pipe is installed one respectively and is swept shower nozzle 33, it is hollow cylindrical to sweep shower nozzle 33, it is equipped with several air jet 331 to sweep shower nozzle 33 along its circumference interval, once fan 1 installs in boiler flue 10's outside, 2 one end of air pipe and the intercommunication of once fan 1, the other end of once air pipe 2 communicates with the air intake 31 of each deashing branch pipe 3 respectively, install the manometer 4 that is used for showing the wind pressure on the once air pipe 2, the shower nozzle 33 that sweeps of every deashing branch pipe 3 passes boiler flue 10 and stretches into easily deposition in boiler flue 10 In the position, each ash removal branch pipe 3 positioned outside a boiler flue 10 is provided with an electromagnetic valve 5, each electromagnetic valve 5 is in communication connection with a time relay 6, one end of each electromagnetic valve 5 close to a primary fan 1 is provided with a first manual valve 7, one end of each electromagnetic valve 5 close to the flue to be ash removed is provided with a second manual valve 8, and an exhaust valve 9 is arranged between each electromagnetic valve 5 and the second manual valve 8.

During ash removal operation, a primary fan 1 provides blowing medium air for cleaning deposited ash, a time relay 6 controls the connection and disconnection of each electromagnetic valve 5 connected in parallel to achieve the purpose of opening and closing air supply in different periods, an ash blowing nozzle 33 is vertically arranged at a position where the deposited ash is easy to accumulate at a corner, and the direction of an air injection port 331 is directly aligned to the position where the deposited ash is easy to accumulate, so that layered time-sharing blowing cleaning at the corner in a flue is realized, and the deposited ash is prevented. The scattered accumulated dust particles are pumped out of the flue 30 under the action of negative pressure gravity of the induced draft fan 20 of the flue gas system, collected by the bag-type dust collector 40 and then conveyed to the dust warehouse, so that the purpose of automatically cleaning the accumulated dust is achieved. The pressure gauge 4 is used for displaying primary air pressure, can monitor safe and stable conveying of blowing medium air at any time, and ensures blowing effect.

When the working state of the electromagnetic valve is to be checked, the electromagnetic valve to be checked is closed firstly, then the first manual valve is closed, the emptying valve is opened, then the electromagnetic valve is opened, if one air comes out from the emptying valve, the electromagnetic valve is proved to work normally, otherwise, the electromagnetic valve belongs to a fault state, at the moment, the second manual valve is closed, and the electromagnetic valve on the ash removal branch pipe is checked and maintained.

The installation position of the ash removal device in the embodiment is not limited to the boiler flue in the embodiment, and the ash removal device can also be a flue corner or an easy-to-accumulate ash place at other places; the soot blowing medium conveyed by the primary fan is usually primary hot air; the time relay is arranged as required, the automatic linkage control of the electromagnetic valve can be realized by installing the time relay, and the time relay can be electrically or signal-connected with the electromagnetic valve; the first manual valve, the second manual valve and the emptying valve are arranged as required, and the first manual valve, the second manual valve and the emptying valve are additionally arranged to facilitate maintenance of the electromagnetic valve; the shape of the blowing nozzle is not limited to the shape shown in the embodiment, the opening positions and the number of the air injection ports are also not limited to the shape shown in the embodiment, and the blowing nozzle is provided only by directly aligning the direction of the air injection ports with the position where dust is easily deposited, but the air pressure of the blowing nozzle in the embodiment is more stable.

The above only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent flow transform that the content of the specification was made, or direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses a patent protection within range.

Claims (4)

1. The utility model provides a chicken manure boiler flue layering ash removal device which characterized in that: the layered ash removal device is arranged at a corner of a chicken manure boiler flue, which is vertically parallel to the chicken manure boiler flue, and comprises a primary fan, a primary air pipe and at least two ash removal branch pipes, wherein each ash removal branch pipe is arranged in parallel from top to bottom along the inner wall of the vertical flue to be ash removed, each ash removal branch pipe is provided with an air inlet and an air outlet, the air outlet of each ash removal branch pipe is respectively provided with a purging nozzle, each purging nozzle is provided with at least one air jet, the utility model discloses a dust removal flue, including the deashing flue, the deashing flue is treated to the deashing flue, the air intake intercommunication of deashing flue is treated to the air intake, and the air intake intercommunication of deashing branch pipe is treated to the air intake, and the air intake is equipped with the manometer that is used for showing the wind pressure on the air intake respectively to the one end of air pipe and the air intake intercommunication of each deashing branch pipe, and the shower nozzle that sweeps of every deashing branch pipe passes treats that the deashing flue stretches into easily deposition position in treating the deashing.

2. The layered ash removal device for the chicken manure boiler flue according to claim 1, which is characterized in that: each solenoid valve all with time relay communication connection.

3. The layered ash removal device for the chicken manure boiler flue according to claim 1, which is characterized in that: a first manual valve is installed at one end, close to the primary fan, of each electromagnetic valve, a second manual valve is installed at one end, close to the to-be-cleaned flue, of each electromagnetic valve, and an exhaust valve is installed between each electromagnetic valve and the corresponding second manual valve.

4. The layered ash removal device for the chicken manure boiler flue according to claim 1, which is characterized in that: the blowing nozzle is hollow and cylindrical, and the air injection ports are arranged at intervals in the circumferential direction of the blowing nozzle.

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