CN216945274U - Material negative pressure conveying device - Google Patents

Abstract

The utility model provides a material negative pressure conveying device which comprises a fan, a filtering device, a cyclone separator, a storage tank and an ash conveying device, wherein a first pipeline is connected between an air inlet of the fan and an air outlet of the filtering device, a second pipeline is connected between the air outlet of the cyclone separator and the air inlet of the filtering device, an ash suction pipeline connected with equipment needing ash removal is arranged at the air inlet of the cyclone separator, the ash conveying device is arranged at an ash hopper at the bottom of the cyclone separator, and a venturi device is arranged at the bottom of the ash conveying device. This device replaces artifical deashing, uses manpower sparingly, strives for the time for maintenance work, eliminates the potential safety hazard of artifical deashing to whole deashing process is all accomplished inside this device, has solved the flying dust and has escaped the polluted environment problem, installs at the fan front end and strains the cylinder filter and play the dust removal and guarantee that the fan entry is clean, extension fan life, the suction head of the removable various forms of ash suction pipeline, so that be suitable for the health clearance under the various situations.

Description

Material negative pressure conveying device

Technical Field

The utility model relates to the technical field of boiler ash removal, in particular to a material negative-pressure conveying device.

Background

Negative pressure conveying is one kind of pneumatic conveying, also called pneumatic conveying, which utilizes the energy of airflow to convey granular materials in the direction of airflow in a closed pipeline, and is a specific application of fluidization technology. The pneumatic conveying device has simple structure and convenient operation, can be used for horizontal, vertical or inclined conveying, and can simultaneously carry out physical operations or certain chemical operations such as heating, cooling, drying, airflow classification and the like on materials in the conveying process.

Need use a large amount of boilers in projects such as waste incineration, heat supply, present boiler maintenance in-process, some deposition transport in the equipment are clean need not to be cleared up with the manual work, waste time and energy like this and have great potential safety hazard, will the polluted environment if the improper operation flying dust is escaped outward to flying dust after the clearance is handled very loaded down with trivial details, uses the negative pressure to carry and can realize sealing the transportation deposition, and promotes deashing efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a material negative pressure conveying device to solve the problems that accumulated ash needs to be cleaned manually in boiler maintenance at present, potential safety hazards exist, and the environment is easily polluted due to improper operation.

In order to achieve the purpose, the technical means adopted by the utility model are as follows:

the utility model provides a material negative pressure conveyor, includes fan, filter equipment, cyclone, storage tank and defeated grey device, the air intake department of fan is connected with first pipeline with filter equipment's air outlet department, cyclone's air outlet department with filter equipment's air intake department is connected with the second pipeline, cyclone's air intake department is provided with the ash absorption pipeline that is used for being connected with boiler equipment, cyclone's bottom ash bucket department is provided with defeated grey device, defeated grey device bottom is provided with the venturi ware, the feed inlet of venturi ware with defeated grey device's exit linkage, the air intake of venturi ware with be connected with the jetting pipeline between the air outlet of fan, the discharge gate and the storage tank of venturi ware are connected.

The filter device is a filter cartridge type filter, the filter cartridge type filter comprises a hollow cylinder body, a plurality of filter cartridges and an upper cover, the filter cartridges are vertically arranged in the cylinder body, the upper cover is arranged at the top of the cylinder body, an ash discharging device is arranged at the bottom of the cylinder body, each filter cartridge is in a long and thin cylinder shape with one open end, one open end of each filter cartridge extends to the outside of the cylinder body from the top end of the cylinder body, and an air outlet of each filter cartridge type filter is located on the central axis of the upper cover.

The top of filtering the cylinder filter is provided with pulse deashing system, pulse deashing system include control box, compressed air gas holder with set up in strain the injection pipe of section of thick bamboo top, the quantity of injection pipe with strain the quantity of section of thick bamboo and equal, and export vertical downwards to strain a section of thick bamboo, the injection pipe with set up between the compressed air gas holder and be connected with the electromagnetic pulse valve, the control box with electromagnetic pulse valve electric connection.

The outlet of the jet pipe is connected with a spiral nozzle.

The ash conveying device comprises a heavy hammer type flap valve, an inlet of the heavy hammer type flap valve is connected with an ash bucket of the cyclone separator, and an outlet of the heavy hammer type flap valve is connected with a feed inlet of the venturi separator.

The cyclone separator is a cone with a thick upper part and a thin lower part.

The utility model has the beneficial effects that:

this device replaces artifical deashing, uses manpower sparingly, strives for the time for maintenance work, eliminates the potential safety hazard of artifical deashing to whole deashing process is all accomplished inside this device, has solved the flying dust and has escaped the polluted environment problem, installs at the fan front end and strains the cylinder filter and play the dust removal and guarantee that the fan entry is clean, extension fan life, the suction head of the removable various forms of ash suction pipeline, so that be suitable for the health clearance under the various situations.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a left side view of the present invention;

fig. 5 is a schematic partial cross-sectional view of another embodiment of the present invention.

In the figure: 1. a cartridge filter; 2. a fan; 3. a cyclone separator; 4. a venturi; 5. a heavy hammer type flap valve; 6. a first pipe; 7. a second conduit; 8. an ash suction pipeline; 9. a blowing pipeline; 11. a filter cartridge; 12. an upper cover; 13. a barrel; 14. a dust discharging device; 15. an electromagnetic pulse valve; 16. a compressed air storage tank; 17. an injection pipe; 18. and a control box.

Detailed Description

It is to be noted that, in the different described embodiments, identical components are provided with the same reference numerals or the same component names, wherein the disclosure contained throughout the description can be transferred in a meaningful manner to identical components having the same reference numerals or the same component names. The positional references selected in the description, for example left, right, etc., also refer to the directly described and illustrated figures and are transferred to the new position in the sense of the change in position.

As shown in fig. 1-4, a material negative pressure conveying device comprises a fan 2, a filtering device, a cyclone separator 3, a storage tank and an ash conveying device, wherein a first pipeline 6 is connected between an air inlet of the fan 2 and an air outlet of the filtering device, the front end of the fan 2 is provided with the filtering device to ensure clean air entering the fan 2 and prolong the service life of the fan 2, a second pipeline 7 is connected between the air outlet of the cyclone separator 3 and the air inlet of the filtering device, an ash suction pipeline 8 used for being connected with equipment needing to remove ash is arranged at the air inlet of the cyclone separator 3, the ash conveying device is arranged at an ash hopper at the bottom of the cyclone separator 3, a venturi 4 is arranged at the bottom of the ash conveying device, the venturi 4 is an existing device and is also called a venturi ejector or a solid powder ejector, the venturi 4 comprises a feeding port, a discharging port and an air inlet, the feeding port of the venturi 4 is connected with an outlet of the ash conveying device, and a blowing pipeline 9 is connected between the air inlet of the venturi device 4 and the air outlet of the fan 2, and the discharge port of the venturi device 4 is connected with a storage tank.

The cyclone separator 3 is a cone with a thick upper part and a thin lower part, an oblique baffle is arranged at the air inlet of the cyclone separator 3, after the fan 2 is started, negative pressure is formed at the air inlet of the cyclone separator 3, dust enters the cyclone separator 3 through an ash suction pipeline 8 connected with the air inlet of the cyclone separator 3 and then firstly touches the oblique baffle in the middle of the air inlet, the turbulence effect is realized on the entering gas, the running direction of the dust is changed, simultaneously, the air velocity is slowed down, the coarse particle dust in the gas directly falls into an ash bucket due to the gravity settling effect, the pre-dedusting effect is realized, a small amount of dust mixed in the gas enters a filtering device through a second pipeline 7 to be filtered again and sequentially passes through a first pipeline 6, the fan 2 and a blowing pipeline 9, the dust in the ash bucket enters a venturi 4 through an ash conveying device and is taken away by the gas transmitted from the blowing pipeline 9, enter the material storage tank and are convenient to collect and treat.

The filtering device is a filter cartridge 11 type filter 1, the filter cartridge 11 type filter 1 comprises a cylinder 13 with a hollow inner part, a plurality of filter cartridges 11 vertically arranged in the cylinder 13 and an upper cover 12 arranged at the top of the cylinder 13, an ash discharging device 14 is arranged at the bottom of the cylinder 13, the filter cartridge 11 is in an elongated cylinder shape with one open end, the open end of the filter cartridge 11 extends from the top end of the cylinder 13 to the outside of the cylinder 13, and an air outlet of the filter cartridge 11 type filter 1 is positioned at the central axis of the upper cover 12. The filter device of the device is a filter cartridge 11 type filter 1, the filtering precision of dust with the equivalent diameter of more than 3 microns reaches 99%, and materials with higher filtering precision, static resistance, oil resistance, water resistance, high temperature resistance and the like can be selected according to different working conditions.

The ash discharging device 14 is used for discharging the dust deposited at the bottom of the filter cartridge type filter 1, the gate valve is used in the embodiment and connected with the cylinder body 13, and during use, the gate valve is opened to complete ash discharging.

The ash conveying device comprises a weight type flap valve 5, an inlet of the weight type flap valve 5 is connected with an ash bucket of the cyclone separator 3, an outlet of the weight type flap valve 5 is connected with a feed inlet of the venturi device 4, and when the weight of dust reaches a certain value, the flap valve is opened to enable the dust to enter the venturi device 4.

As shown in fig. 5, in another embodiment, a pulse ash removal system is disposed at the top of the filter cartridge 11 type filter 1, the pulse ash removal system includes a control box 18, a compressed air storage tank 16 and injection pipes 17 disposed above the filter cartridges 11, the number of the injection pipes 17 is equal to the number of the filter cartridges 11, outlets of the injection pipes are directed downward toward the filter cartridges 11, an electromagnetic pulse valve 15 is disposed between the injection pipes 17 and the compressed air storage tank 16, the control box 18 is electrically connected to the electromagnetic pulse valve 15, after a period of operation, too much dust is accumulated on the outer walls of the filter cartridges 11, which affects the filtering effect, the electromagnetic pulse valve 15 is controlled by the control box 18 to reversely blow the filter cartridges 11, so that the dust on the outer walls of the filter cartridges 11 is blown to the bottom of the cylinder 13, and then the dust inside is periodically cleaned by the dust discharging device 14. The outlet of the injection pipe 17 is connected with a spiral nozzle, the electromagnetic pulse valve 15 is connected with the spiral nozzle for pulse back flushing, the ash removal efficiency is higher and more thorough, the service life of the filter cartridge 11 is protected, and the control box 18 is the existing equipment.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims (6)

1. The utility model provides a material negative pressure conveyor, its characterized in that, includes fan, filter equipment, cyclone, storage tank and defeated grey device, the air intake department of fan is connected with first pipeline with filter equipment's air outlet department, cyclone's air outlet department with filter equipment's air intake department is connected with the second pipeline, cyclone's air intake department is provided with the ash absorption pipeline that is used for being connected with boiler equipment, cyclone's bottom ash bucket department is provided with defeated grey device, defeated grey device bottom is provided with the venturi, the feed inlet of venturi with defeated grey device's exit linkage, the air intake of venturi with be connected with the jetting pipeline between the air outlet of fan, the discharge gate and the storage tank of venturi are connected.

2. The negative-pressure material conveying device according to claim 1, wherein the filtering device is a cartridge filter, the cartridge filter includes a hollow cylinder, a plurality of filter cartridges vertically arranged inside the cylinder, and an upper cover arranged on the top of the cylinder, the bottom of the cylinder is provided with the ash discharging device, the filter cartridge is an elongated cylinder with one open end, the open end of the filter cartridge extends from the top end of the cylinder to the outside of the cylinder, and the air outlet of the cartridge filter is located at the central axis of the upper cover.

3. The negative-pressure material conveying device according to claim 2, wherein a pulse ash removal system is arranged at the top of the filter drum type filter, the pulse ash removal system comprises a control box, a compressed air storage tank and injection pipes arranged above the filter drums, the number of the injection pipes is equal to that of the filter drums, outlets of the injection pipes are vertically directed downwards to the filter drums, electromagnetic pulse valves are arranged and connected between the injection pipes and the compressed air storage tank, and the control box is electrically connected with the electromagnetic pulse valves.

4. The negative pressure material conveying device as claimed in claim 3, wherein a spiral nozzle is connected to an outlet of the jet pipe.

5. The negative-pressure material conveying device according to claim 1, wherein the ash conveying device comprises a weight-type flap valve, an inlet of the weight-type flap valve is connected with the ash bucket of the cyclone separator, and an outlet of the weight-type flap valve is connected with the feeding port of the venturi.

6. A negative pressure material conveying device according to claim 1, wherein the cyclone separator is a cone with a thick upper part and a thin lower part.

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