CN216203426U - Energy-efficient ash conveying system - Google Patents

Abstract

The utility model discloses an efficient energy-saving ash conveying system which comprises a first bin pump, a second bin pump, a third bin pump and an ash conveying pipe, wherein a discharge hole of the second bin pump is communicated with the ash conveying pipe through a discharge pipe, discharge holes of the first bin pump and the third bin pump are communicated with the discharge pipe at the bottom of the second bin pump through the discharge pipe, discharge valves are arranged at one ends of the three discharge pipes, which are close to the first bin pump, the second bin pump and the third bin pump, material level meters are arranged at positions, which are close to the top end and the bottom end, of the first bin pump, the second bin pump and the third bin pump, and dome valves are arranged at feed inlets of the first bin pump, the second bin pump and the third bin pump; according to the utility model, the discharge pipes at the bottoms of the three bin pumps are connected and then connected with the ash conveying pipe, so that the normal operation of the whole system cannot be influenced after one bin pump fails, and the working efficiency can be improved.

Description

Energy-efficient ash conveying system

Technical Field

The utility model relates to the technical field of pneumatic ash conveying. In particular to a high-efficiency energy-saving ash conveying system.

Background

The pilot type pneumatic ash conveying system equipment is a device system which takes compressed air as power and cuts and conveys granular materials through a sealed pipeline; the pneumatic conveying system mainly relates to the conveying of boiler fly ash, pebble coal, limestone, circulating fluidized bed boiler bed sand and furnace bottom slag in a thermal power plant, can also be used for conveying materials in the industries of cement, chemical engineering, plastics, grains and food, and has wide usability.

The pilot-operated pneumatic conveying system in the prior art is usually connected with an ash conveying pipeline through a single bin pump, and each bin pump is provided with a plurality of parts, so that the parts are difficult to damage in long-time operation, if the parts cannot be found in time, the whole ash conveying system is influenced, and the conveying efficiency is very low due to the fact that the single bin pump discharges materials.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to provide an efficient and energy-saving ash conveying system which does not influence the whole system due to the damage of parts in a single bin pump.

In order to solve the technical problems, the utility model provides the following technical scheme:

the high-efficiency energy-saving ash conveying system comprises a first bin pump, a second bin pump, a third bin pump and an ash conveying pipe, wherein a discharge hole of the second bin pump is communicated with the ash conveying pipe through a discharge pipe, discharge holes of the first bin pump and the third bin pump are communicated with the discharge pipe at the bottom of the second bin pump through the discharge pipe, discharge valves are arranged at one ends of the three discharge pipes, which are close to the first bin pump, the second bin pump and the third bin pump, material level meters are arranged at positions, which are close to the top end and the bottom end, of the first bin pump, the second bin pump and the third bin pump, dome valves and balance valves are arranged at feed inlets of the first bin pump, the second bin pump and the third bin pump, and the same ash hopper is communicated with the feed inlets of the first bin pump, the second bin pump and the third bin pump; one end of the ash conveying pipe close to the first bin pump is communicated with a gas outlet end of the gas supply main pipe through fluid, a gas accompanying pipe is communicated with the fluid on the side wall of the gas supply main pipe, and the gas accompanying pipe is communicated with the gas supply main pipe through fluid; the discharge pipe is provided with a pilot valve, the pilot valve on the discharge pipe is communicated with the gas accompanying pipe through a gas guide pipe, and the gas accompanying pipe is provided with a gas accompanying valve.

In the efficient energy-saving ash conveying system, the discharge pipe at the bottom of the second bin pump is a vertical pipe, the discharge pipes at the bottoms of the first bin pump and the third bin pump are inclined pipes, and the gas outlet of the pilot valve on the discharge pipe faces the discharge end of the discharge pipe and is inclined at forty-five degrees of the discharge pipe.

In the efficient energy-saving ash conveying system, the main gas supply pipe is provided with the first pressure reducing valve, the maximum working pressure of the first pressure reducing valve is 0.35MPa, and a connecting point of the gas accompanying pipe and the main gas supply pipe is positioned between the first pressure reducing valve and the ash conveying pipe; a second pressure reducing valve and a main gas accompanying valve are arranged at the position, close to the gas inlet end, of the gas accompanying pipe, and the maximum working pressure of the second pressure reducing valve is 0.3 MPa; and a blow-down valve is arranged at the tail end of the air accompanying pipe.

In the efficient energy-saving ash conveying system, the air inlet end of the air supply main pipe is in fluid communication with the air outlet of the dryer, and the air inlet of the dryer is in fluid communication with the air outlet of the air compressor; the ash conveying pipe is provided with a main air inlet valve at a position close to an air inlet end, the ash conveying pipe is provided with two or more pilot valves, the pilot valves on the ash conveying pipe are communicated with the gas accompanying pipe fluid through the air guide pipes, an air outlet of the pilot valves on the ash conveying pipe faces to a discharge end of the ash conveying pipe and is inclined to forty-five degrees of the ash conveying pipe, and the discharge end of the ash conveying pipe is communicated with an ash warehouse.

According to the efficient energy-saving ash conveying system, the positions, close to the top end, inside the first bin pump, the second bin pump and the third bin pump are respectively provided with an annular pipe, the outer edge of each annular pipe is tightly attached to the inner surface of the bin pump, the annular pipe is obliquely provided with a first air blowing hole towards the center position of the bin pump, the number of the first air blowing holes is two or more, the inner surfaces of the first bin pump, the second bin pump and the third bin pump are respectively and vertically provided with two or more than two vertical pipes, one side, facing the center position of the bin pump, of each vertical pipe is provided with a second air blowing hole which is obliquely downwards inclined, and the two sides of each vertical pipe are provided with third air blowing holes which are obliquely oriented towards the inner surface of the bin pump; the ring pipe is communicated with the backpressure air inlet branch pipe in a fluid mode, the air inlet end of the backpressure air inlet branch pipe penetrates through the side wall of the bin pump and is communicated with the backpressure air inlet main pipe in a fluid mode, a check valve is arranged at one end, close to the bin pump, of the backpressure air inlet branch pipe, a backpressure air inlet valve is arranged at one end, close to the backpressure air inlet main pipe, of the backpressure air inlet branch pipe, the air inlet end of the backpressure air inlet main pipe is communicated with the backpressure air supply main pipe in a fluid mode, and the connecting point of the backpressure air inlet main pipe and the backpressure air supply main pipe is located between the first pressure reducing valve and the ash conveying pipe.

In the efficient energy-saving ash conveying system, the top parts of the first bin pump, the second bin pump and the third bin pump are respectively provided with an air outlet, two or more layers of filter screens are arranged in the air outlets, the air outlets are in fluid communication with an air outlet main pipe through air outlet branch pipes, the air outlet branch pipes are provided with air outlet valves, and the air outlet end of the air outlet main pipe is provided with an air purifier; the air purifier adopts ordinary air purifier in the market can.

The technical scheme of the utility model achieves the following beneficial technical effects:

1. according to the utility model, the discharge pipes at the bottoms of the three bin pumps are connected and then connected with the ash conveying pipe, so that the normal operation of the whole system cannot be influenced after one bin pump fails, and the working efficiency can be improved; during normal operation, when three storehouse pump is inside when filling with the material, three bleeder valve is opened simultaneously, three storehouse pump can be simultaneously to defeated grey intraductal ash conveying, can improve single delivery capacity, when one of them or two storehouse pumps wherein to defeated grey pipe blanking and another one or two storehouse pumps do not to defeated grey pipe blanking, through the detection and the feedback of charge level indicator, normal one or two storehouse pumps can continue to carry the ash in the ash bucket simultaneously, can not interrupt whole defeated grey process, effectively improved conveying efficiency.

2. According to the utility model, the pilot valves are arranged on the two inclined discharge pipes, so that ash passing through the discharge pipes can be pneumatically dredged, and the ash is prevented from being blocked in the discharge pipes.

3. According to the utility model, the annular pipe and the plurality of vertical pipes are arranged on the inner surface of the bin pump and are communicated with the backpressure air inlet pipe in a fluid mode, when the backpressure air inlet pipe conveys air to the interior of the bin pump, the air firstly passes through the annular pipe and the vertical pipes and is blown out from the first air blowing holes and the second air blowing holes to blow the interior and the inner surface of the bin pump, so that the inner surface of the bin pump is prevented from attaching and accumulating dust after long-time work, and the cleaning interval time of the bin pump is greatly prolonged.

4. According to the utility model, the dust content in the gas discharged by the device can be reduced by arranging the filter screen in the gas outlet and connecting the gas outlet with the gas purifying machine.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a standpipe structure of the present invention.

The reference numbers in the figures denote: 1-a first bin pump; 2-a second bin pump; 3-a third bin pump; 4-ash conveying pipe; 5, a discharge pipe; 6-a discharge valve; 7-a level gauge; 8-dome valve; 9-a main gas supply pipe; 10-accompanying trachea; 11-a pilot valve; 12-an airway tube; 13-an aeration valve; 14-a first pressure relief valve; 15-a second pressure relief valve; 16-a main gas tracing valve; 17-a blowdown valve; 18-a dryer; 19-an air compressor; 20-a main inlet valve; 21-ash storehouse; 22-ring pipe; 23-a first blow hole; 24-a standpipe; 25-a second blow hole; 26-a third gas blowing hole; 27-back pressure intake manifold; 28-backpressure air inlet main pipe; 29-a non-return valve; 30-back pressure admission valve; 31-air outlet; 32-a filter screen; 33-gas outlet branch pipe; 34-a gas outlet header pipe; 35-an air outlet valve; 36-purification of qi activity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The high-efficiency energy-saving ash conveying system of the embodiment comprises a first bin pump 1, a second bin pump 2, a third bin pump 3 and an ash conveying pipe 4, wherein a discharge port of the second bin pump 2 is communicated with the ash conveying pipe 4 through a discharge pipe 5, discharge ports of the first bin pump 1 and the third bin pump 3 are communicated with a discharge pipe 5 at the bottom of the second bin pump 2 through the discharge pipe 5, discharge valves 6 are arranged at one ends of the three discharge pipes 5, which are close to the first bin pump 1, the second bin pump 2 and the third bin pump 3, the first bin pump 1, the positions of the second bin pump 2 and the third bin pump 3 close to the top end and the bottom end are respectively provided with a material level meter 7, the feed inlets of the first bin pump 1, the second bin pump 2 and the third bin pump 3 are respectively provided with a dome valve 8 and a balance valve, and the feed inlets of the first bin pump 1, the second bin pump 2 and the third bin pump 3 are communicated with the same ash bucket; one end of the ash conveying pipe 4 close to the first bin pump 1 is in fluid communication with the air outlet end of the air supply main pipe 9, a gas accompanying pipe 10 is in fluid communication with the side wall of the air supply main pipe 9, and the gas accompanying pipe 10 is in fluid communication with the air supply main pipe 9; the discharge pipe 5 is provided with a pilot valve 11, the pilot valve 11 on the discharge pipe 5 is communicated with the gas accompanying pipe 10 through a gas guide pipe 12, and the gas accompanying pipe 10 is provided with a gas accompanying valve 13; the discharging pipe 5 at the bottom of the second bin pump 2 is a vertical pipe, the discharging pipes 5 at the bottoms of the first bin pump 1 and the third bin pump 3 are inclined pipes, and the gas outlet of the pilot valve 11 on the discharging pipe 5 is arranged towards the discharging end of the discharging pipe 5 and is inclined to the discharging pipe 5 by forty-five degrees; a first pressure reducing valve 14 is arranged on the main gas supply pipe 9, the maximum working pressure of the first pressure reducing valve 14 is 0.35MPa, and the connection point of the gas accompanying pipe 10 and the main gas supply pipe 9 is positioned between the first pressure reducing valve 14 and the ash conveying pipe 4; a second pressure reducing valve 15 and a main gas accompanying valve 16 are arranged at the position, close to the gas inlet end, of the gas accompanying pipe 10, and the maximum working pressure of the second pressure reducing valve 15 is 0.3 MPa; the tail end of the gas accompanying pipe 10 is provided with a blow-off valve 17; the air inlet end of the air supply main pipe 9 is in fluid communication with the air outlet of the dryer 18, and the air inlet of the dryer 18 is in fluid communication with the air outlet of the air compressor 19; the ash conveying pipe 4 is provided with a main air inlet valve 20 at a position close to the air inlet end, the ash conveying pipe 4 is provided with two or more pilot valves 11, the pilot valves 11 on the ash conveying pipe 4 are communicated with the gas accompanying pipe 10 through gas guide pipes 12, the gas outlet of the pilot valves 11 on the ash conveying pipe 4 is arranged towards the discharge end of the ash conveying pipe 4 and is inclined to the ash conveying pipe 4 by forty-five degrees, and the discharge end of the ash conveying pipe 4 is communicated with the ash warehouse 21.

As shown in fig. 1-3, the positions inside the first bin pump 1, the second bin pump 2 and the third bin pump 3, which are close to the top ends, are all provided with a circular pipe 22, the outer edge of the circular pipe 22 is tightly attached to the inner surface of the bin pump, the circular pipe 22 is provided with a first air blowing hole 23 in an inclined manner towards the center position of the bin pump, the number of the first air blowing holes is two or more, the inner surfaces of the first bin pump 1, the second bin pump 2 and the third bin pump 3 are all vertically provided with two or more than two vertical pipes 24, one side of each vertical pipe 24, which faces the center position of the bin pump, is provided with a second air blowing hole 25 which is inclined downwards, and the two sides of each vertical pipe 24 are provided with inclined third air blowing holes 26 towards the inner surface of the bin pump; the ring pipe 22 is in fluid communication with the backpressure air inlet branch pipe 27, the air inlet end of the backpressure air inlet branch pipe 27 passes through the side wall of the cabin pump and is in fluid communication with the backpressure air inlet main pipe 28, a check valve 29 is arranged at one end, close to the cabin pump, of the backpressure air inlet branch pipe 27, a backpressure air inlet valve 30 is arranged at one end, close to the backpressure air inlet main pipe 28, of the backpressure air inlet branch pipe 27, the air inlet end of the backpressure air inlet main pipe 28 is in fluid communication with the air supply main pipe 9, and the connection point of the backpressure air inlet main pipe 28 and the air supply main pipe 9 is located between the first pressure reducing valve 14 and the ash conveying pipe 4; the top of the first bin pump 1, the top of the second bin pump 2 and the top of the third bin pump 3 are all provided with a gas outlet 31, two or more than two layers of filter screens 32 are arranged inside the gas outlet 31, the gas outlet 31 is in fluid communication with a gas outlet main pipe 34 through a gas outlet branch pipe 33, a gas outlet valve 35 is arranged on the gas outlet branch pipe 33, and a gas purifying machine 36 is arranged at the gas outlet end of the gas outlet main pipe 34.

The working principle is as follows: the discharge pipes 5 at the bottoms of the three bin pumps are connected and then connected with the ash conveying pipe 4, so that the normal operation of the whole system cannot be influenced after one bin pump fails, and the working efficiency can be improved; when the three bin pumps are filled with materials during normal operation, the three discharge valves 6 are opened simultaneously, the three bin pumps can simultaneously convey ash into the ash conveying pipe 4, single conveying capacity can be improved, when one or two bin pumps discharge the ash conveying pipe 4 and the other or two bin pumps do not discharge the ash to the ash conveying pipe 4, through detection and feedback of the material level meter 7, the normal bin pump or two bin pumps can continuously convey the ash in the ash hopper, the whole ash conveying process cannot be interrupted, conveying efficiency is effectively improved, through arranging the pilot valves 11 on the two inclined discharge pipes 5, ash passing through the discharge pipes 5 can be pneumatically dredged, the ash is prevented from being blocked in the discharge pipes 5, through arranging the annular pipe 22 and the plurality of vertical pipes 24 on the inner surfaces of the bin pumps, and enabling the vertical pipes to be communicated with a backpressure air inlet pipe fluid, when the backpressure air inlet pipe conveys the air to the interior of the bin pumps, gas firstly blows out from the first air blowing holes 23 and the second air blowing holes 25 through the annular pipe 22 and the vertical pipe 24, the interior and the inner surface of the bin pump are swept, dust is prevented from being attached to and accumulated on the inner surface of the bin pump after long-time work, the cleaning interval time of the bin pump is greatly increased, and the dust content in the discharged gas of the device can be reduced by arranging the filter screen 32 in the gas outlet 31 and connecting the gas outlet 31 with the gas purifying machine 36.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.

Claims (6)

1. The utility model provides a high-efficient energy-conserving ash conveying system, its characterized in that includes first storehouse pump (1), second storehouse pump (2), third storehouse pump (3) and ash conveying pipe (4), the discharge gate of second storehouse pump (2) pass through discharging pipe (5) with ash conveying pipe (4) are linked together, first storehouse pump (1) with the discharge gate of third storehouse pump (3) passes through discharging pipe (5) with second storehouse pump (2) bottom discharging pipe (5) are linked together, and are three be close to on discharging pipe (5) first storehouse pump (1), second storehouse pump (2) and the one end of third storehouse pump (3) all is provided with bleeder valve (6), first storehouse pump (1) second storehouse pump (2) with the position that third storehouse pump (3) are close to the top and are close to the bottom all is provided with material level meter (7), first storehouse pump (1), The feed inlets of the second bin pump (2) and the third bin pump (3) are respectively provided with a dome valve (8) and a balance valve, and the feed inlets of the first bin pump (1), the second bin pump (2) and the third bin pump (3) are communicated with the same ash bucket; one end of the ash conveying pipe (4) close to the first bin pump (1) is in fluid communication with the air outlet end of the air supply main pipe (9), a gas accompanying pipe (10) is in fluid communication with the side wall of the air supply main pipe (9), and the gas accompanying pipe (10) is in fluid communication with the air supply main pipe (9); the discharge pipe (5) is provided with a pilot valve (11), the pilot valve (11) on the discharge pipe (5) is communicated with the gas accompanying pipe (10) through a gas guide pipe (12), and the gas accompanying pipe (10) is provided with a gas accompanying valve (13).

2. The efficient energy-saving ash conveying system according to claim 1, wherein the discharging pipe (5) at the bottom of the second bin pump (2) is a vertical pipe, the discharging pipes (5) at the bottoms of the first bin pump (1) and the third bin pump (3) are both inclined pipes, and the gas outlet of the pilot valve (11) on the discharging pipe (5) is arranged towards the discharging end of the discharging pipe (5) and is inclined to the discharging pipe (5) by forty-five degrees.

3. The system for conveying ash with high efficiency and energy conservation as claimed in claim 1, wherein a first pressure reducing valve (14) is arranged on the main gas supply pipe (9), the maximum working pressure of the first pressure reducing valve (14) is 0.35MPa, and the connection point of the gas accompanying pipe (10) and the main gas supply pipe (9) is positioned between the first pressure reducing valve (14) and the ash conveying pipe (4); a second pressure reducing valve (15) and a main gas accompanying valve (16) are arranged at the position, close to the gas inlet end, of the gas accompanying pipe (10), and the maximum working pressure of the second pressure reducing valve (15) is 0.3 MPa; the tail end of the air accompanying pipe (10) is provided with a drain valve (17).

4. The system for conveying ash with high efficiency and energy conservation as claimed in claim 1, wherein the air inlet end of the air supply main pipe (9) is in fluid communication with the air outlet of the dryer (18), and the air inlet of the dryer (18) is in fluid communication with the air outlet of the air compressor (19); the ash conveying pipe (4) is provided with a main air inlet valve (20) at a position close to an air inlet end, the ash conveying pipe (4) is provided with two or more pilot valves (11), the pilot valves (11) on the ash conveying pipe (4) are communicated with the air accompanying pipe (10) through air guide pipes (12), an air outlet of the pilot valves (11) on the ash conveying pipe (4) faces to a discharge end of the ash conveying pipe (4) and is arranged and inclined at forty-five degrees of the ash conveying pipe (4), and the discharge end of the ash conveying pipe (4) is communicated with an ash warehouse (21).

5. An energy-efficient ash conveying system according to claim 3, characterized in that the first bin pump (1), the second bin pump (2) and the third bin pump (3) are provided with a loop pipe (22) at the inner part near the top end, the outer edge of the ring pipe (22) is tightly attached to the inner surface of the bin pump, a first air blowing hole (23) is obliquely arranged on the ring pipe (22) towards the center of the bin pump, the number of the first air blowing holes is two or more, the inner surfaces of the first bin pump (1), the second bin pump (2) and the third bin pump (3) are vertically provided with two or more than two vertical pipes (24), one side of the vertical pipe (24) facing the center of the bin pump is provided with a second air blowing hole (25) which is inclined downwards, two sides of the vertical pipe (24) facing the inner surface of the bin pump are provided with inclined third air blowing holes (26); the utility model discloses a pressure-reducing dust collector, including ring pipe (22), back pressure air inlet branch pipe (27), inlet end and back pressure air inlet branch pipe (27) are connected, the lateral wall that back pressure air inlet branch pipe (27) passed the cabin pump is led in charge of (28) fluid with the back pressure and is led in charge of (28) fluid and lead to, the one end that is close to the cabin pump on back pressure air inlet branch pipe (27) is provided with check valve (29), the one end that is close to back pressure air inlet branch pipe (27) and is admitted in charge of (28) is provided with back pressure admission valve (30), the inlet end that the back pressure was admitted in charge of (28) with air supply is responsible for (9) fluid and is led in charge of (9), the back pressure admit in charge of (28) with the tie point that the air supply is responsible for (9) is located first relief pressure valve (14) with between ash conveying pipe (4).

6. The efficient energy-saving ash conveying system according to claim 1, wherein the top of each of the first bin pump (1), the second bin pump (2) and the third bin pump (3) is provided with an air outlet (31), two or more layers of filter screens (32) are arranged inside the air outlet (31), the air outlet (31) is in fluid communication with an air outlet main pipe (34) through an air outlet branch pipe (33), the air outlet branch pipe (33) is provided with an air outlet valve (35), and an air outlet end of the air outlet main pipe (34) is provided with an air purifier (36).

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