CN103787085A - Mechanical powdered coal pressurizing device, continuous conveying system and continuous conveying method - Google Patents
Mechanical powdered coal pressurizing device, continuous conveying system and continuous conveying method Download PDFInfo
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- CN103787085A CN103787085A CN201410063171.9A CN201410063171A CN103787085A CN 103787085 A CN103787085 A CN 103787085A CN 201410063171 A CN201410063171 A CN 201410063171A CN 103787085 A CN103787085 A CN 103787085A
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Abstract
The invention discloses a mechanical powdered coal pressurizing device, a continuous conveying system and a continuous conveying method. The mechanical powdered coal pressurizing device comprises a booster pump set and a driver. The booster pump set comprises two or three or more booster pumps, pistons of the booster pumps are connected to the driver, a cylinder body is provided with a feed port and a discharge port, the feed port is provided with a feeding controller, and the discharge port is provided with a discharging controller. The continuous conveying system comprises a normal pressure powdered coal bin, a normal pressure powdered coal feeding device, the mechanical powdered coal pressurizing device and a control device. According to the continuous conveying method, the two or three or more booster pumps are connected in parallel to form the booster pump set, the booster pumps in the booster pump set are used for alternately absorbing powdered coal and compression powdered coal, and then high pressure powdered coal is continuously output. The mechanical powdered coal pressurizing device, the continuous conveying system and the continuous conveying method can overcome the defects of airtight phase air force interval pressurizing conveying, energy consumption is greatly reduced, operation stability is improved, and the equipment building and investing cost is reduced.
Description
Technical field
The present invention relates to the technical field that fine coal is carried, relate in particular to a kind of mechanical type fine coal pressure device and continuous conveying system and continuous carrying method.
Background technology
The dried coal powder gasification technology growing up the nineties has demonstrated its powerful survivability, its raw material applicable surface broadness, and gasification temperature is high, oxygen consumption is low, available gas composition is high, general (CO+H2) approximately 90%.
Current, the mode that fine coal positive delivery in powdered coal pressuring gasified technology adopts carrier gas Pipe in Dense Phase Pneumatic intermittent pressurized to carry conventionally, idiographic flow is: coal dust is stored in coal dust bunker, when coal dust lock hopper is during in atmospheric pressure state, open the upper valve of coal dust lock hopper import, close the lower valve of coal dust lock hopper outlet, make the coal dust of coal dust bunker flow into coal dust lock hopper, after material is full, closes and close valve, pass into input high pressure N2/CO2 gas, after pressurization, opening lower valve enters in coal dust feed hopper coal dust gravity flow, after unsnatching, close lower valve, discharge N2/CO2 gas and be down to normal pressure, repeat again above-mentioned flow process.After pressurization, coal dust is sent to gasifying furnace nozzle by pipeline.Lock hopper release divides three steps to carry out, and controls respectively by restriction orifice and pressure regulating valve.Lock hopper decompression or gasifying furnace nozzle debugging exhaust are filtered through Pulverized Coal Bin charging bag hose, and the coal dust of collection enters coal dust bunker, and gas enters atmosphere.Coal dust carry the N2/CO2 gas that adopts from compressor.
There is following drawback in the mode that above-mentioned carrier gas Pipe in Dense Phase Pneumatic intermittent pressurized is carried: carrier gas compression energy consumption is large, and energy recycling difficulty, and waste is serious; System complex, equipment is many; Discontinuous operation, fine coal discharge measurement difficulty, affects the stable operation of downstream gasification installation; Course of conveying is unstable, and flowing power requires high, easily plugging.
Simultaneously, the course of conveying that normal pressure enters high-pressure chamber is all to use coal lock hopper device, and front and back form the voltage raising and reducing of ladder with lock hopper valve, and simultaneously whole fine coal is carried or flowed by gravity, therefore whole gasification system civil engineering framework must be very high, to guarantee fine coal gravity fall from top to bottom.
Therefore, the inventor is devoted to develop a kind of mechanical type fine coal pressure device and continuous conveying system and continuous carrying method, overcome all drawbacks that carrier gas Pipe in Dense Phase Pneumatic intermittent pressurized is carried, realize and significantly reduce energy consumption, improve operational stability and reduction equipment and build cost of investment.
Summary of the invention
In view of the deficiency of above-mentioned prior art existence, the present invention proposes a kind of all drawbacks that can overcome the conveying of carrier gas Pipe in Dense Phase Pneumatic intermittent pressurized, realize and significantly reduce energy consumption, improve operational stability and reduction equipment and build mechanical type fine coal pressure device and continuous conveying system and the continuous carrying method of cost of investment.
The present invention is for achieving the above object, a kind of mechanical type fine coal pressurization continuous conveying system provided by the invention, comprise suction fine coal and compression fine coal the boost pump group of moving and the driving machine that drives boost pump piston movement taken over for forming in order, described boost pump group comprises the boost pump that two or three are above, described boost pump comprises cylinder body and piston, described piston is connected on described driving machine, on described cylinder body, be provided with feeding mouth for inputting fine coal and for exporting the discharging opening of fine coal, on described feeding mouth, be provided with feed controller, on described discharging opening, be provided with discharging controller.
Preferably, described boost pump group comprises three boost pumps.
The present invention also proposes a kind of mechanical type fine coal pressurization continuous conveying system, comprises normal pressure fine coal feed bin, normal pressure fine coal charging gear, mechanical type fine coal pressure device and control setup.
Described mechanical type fine coal pressure device comprises suction fine coal and compression fine coal the boost pump group of moving and the driving machine that drives boost pump piston movement taken over for forming in order, described boost pump group comprises the boost pump that two or three are above, described boost pump comprises cylinder body and piston, described piston is connected on described driving machine, on described cylinder body, be provided with feeding mouth for inputting fine coal and for exporting the discharging opening of fine coal, on described feeding mouth, be provided with feed controller, on described discharging opening, be provided with discharging controller.
The conducting of described normal pressure fine coal feed bin connects described normal pressure fine coal charging gear, and described normal pressure fine coal charging gear connects cylinder body described in each by corresponding feeding mouth conducting, is externally exported by corresponding discharging opening.
Driving machine, described feed controller and described discharging controller described in described control setup control linkage, in the time that described piston reaches maximum crush stroke, corresponding discharging controller cuts out, and described piston starts to pull open motion, corresponding feed controller is opened, and starts to flow into normal pressure fine coal; In the time that described piston reaches maximum and pulls open stroke, corresponding feed controller is closed, and described piston starts propelling extrusion motion, and corresponding discharging controller opens, starts to export high-pressure powdered coal; The multiple described boost pumps of described control setup control move to take over repeatedly with this and carry out, and form the suction fine coal of taking over and the continuous motion of compressing output fine coal.
Preferably, mechanical type fine coal pressurization continuous conveying system of the present invention also comprises the high-pressure powdered coal feed bin for storing the rear fine coal of pressurization, and described in each, discharging opening is parallel on a delivery piping, and described delivery piping conducting is connected on described high-pressure powdered coal feed bin.
Preferably, on described delivery piping, be also provided with a stable-pressure device.
The present invention also proposes a kind of mechanical type fine coal continuous carrying method that pressurizes, adopt in parallel formation of two or three above boost pumps to take over the boost pump group that sucks fine coal and the motion of compression fine coal, normal pressure fine coal is imported in described boost pump group continuously, take over and suck fine coal and compression fine coal by each boost pump in described boost pump group, then carry out the continuous wave output of high-pressure powdered coal.
The beneficial effect of mechanical type fine coal pressure device of the present invention and continuous conveying system and continuously carrying method and concrete applicable cases are as follows:
The present invention can be delivered to gasification installation by the pressurization of normal pressure fine coal continuously by the mode of mechanical supercharged and conveying continuously, makes fine coal positive delivery process become machinery pressurization conveying continuously by original gas phase intermittent pressurized mode of movement.The present invention can greatly reduce the energy consumption of defeated coal process, has improved transport efficiency, stablizes downstream gasification installation operation, has reduced defeated device for coal investment, for coal gasification energy-saving and emission-reduction provide effective failure-free delivery technology.The present invention has that fine coal delivery pressure is high, and traffic capacity is large, carries the advantages such as load fluctuation is little, and equipment is simple, and efficiency is high, and energy consumption is low, reduced investment, can effectively avoid the variety of problems of conventional gas phase positive delivery.
Accompanying drawing explanation
Fig. 1 is the structural representation of mechanical type fine coal pressurization continuous conveying system.
Primary clustering nomenclature in figure:
The specific embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Embodiment mono-:
Fig. 1 is the structural representation of mechanical type fine coal pressurization continuous conveying system.As shown in Figure 1, the present embodiment has proposed a kind of mechanical type fine coal pressure device, comprise suction fine coal and compression fine coal the boost pump group 100 of moving and the driving machine 200 that drives boost pump piston movement taken over for forming in order, boost pump group 100 comprises the boost pump 110 that two or three are above, boost pump 110 comprises cylinder body 111 and piston 112, piston 112 is connected on driving machine 200, on cylinder body 111, be provided with feeding mouth (not shown) for inputting fine coal and for exporting the discharging opening (not shown) of fine coal, on described feeding mouth, be provided with feed controller 300, on described discharging opening, be provided with discharging controller 400.
Concrete, mechanical type fine coal pressure device as shown in dotted line frame in figure, the boost pump group 100 of the present embodiment comprises three boost pumps 110, three boost pumps 110 are arranged in parallel as shown in the figure, driving machine 200 adopts hydraulic compressor, drive the piston of three boost pumps in cylinder body 111, to replace back and forth movement, driving machine 200 drives each piston movement in order successively, forms suction fine coal and the motion of compression fine coal taken in corresponding cylinder body.
Certainly,, in other specific embodiments, the quantity of boost pump can adopt other multiple boost pumps such as 2 or 4 as required, carries out as mentioned above multi-cylinder and combines layout, realizes equally the object of continuous feed and the discharging of boost pump group, repeats no more herein.
Embodiment bis-:
Fig. 1 is the structural representation of mechanical type fine coal pressurization continuous conveying system.As shown in Figure 1, the present embodiment proposes a kind of mechanical type fine coal pressurization continuous conveying system, comprises normal pressure fine coal feed bin 500, normal pressure fine coal charging gear 600, mechanical type fine coal pressure device (see in figure shown in dotted line frame part) and control setup 700.
Shown in Fig. 1, mechanical type fine coal pressure device described in the employing embodiment mono-of the present embodiment, comprise suction fine coal and compression fine coal the boost pump group 100 of moving and the driving machine 200 that drives boost pump piston movement taken over for forming in order, boost pump group 100 comprises the boost pump 110 that two or three are above, boost pump 110 comprises cylinder body 111 and piston 112, piston 112 is connected on driving machine 200, on cylinder body 111, be provided with feeding mouth (not shown) for inputting fine coal and for exporting the discharging opening (not shown) of fine coal, on described feeding mouth, be provided with feed controller 300, on described discharging opening, be provided with discharging controller 400.Exemplary, boost pump group 100 comprises three boost pumps 110, three boost pumps 110 are arranged in parallel as shown in the figure, driving machine 200 adopts hydraulic compressor, drive the piston of three boost pumps in cylinder body 111, to replace back and forth movement, driving machine 200 drives each piston movement in order successively, forms suction fine coal and the motion of compression fine coal taken in corresponding cylinder body.
As shown in the figure, 500 conductings of normal pressure fine coal feed bin connect normal pressure fine coal charging gears 600, and normal pressure fine coal charging gear 600 connects cylinder body described in each by corresponding feeding mouth conducting, is externally exported by corresponding discharging opening.
Shown in Fig. 1, control setup 700 control linkage driving machines 200, feed controller 300 and discharging controller 400(control linkage relation are not shown), in the time that piston 112 reaches maximum crush stroke, corresponding discharging controller 400 cuts out, piston 112 starts to pull open motion, corresponding feed controller 300 is opened, and starts to flow into normal pressure fine coal; In the time that piston 112 reaches maximum and pulls open stroke, corresponding feed controller 300 is closed, and piston 112 starts propelling extrusion motion, and corresponding discharging controller 400 is opened, and starts to export high-pressure powdered coal; Control setup 700 is controlled multiple boost pumps 110 and is moved to take over repeatedly with this and carry out, and forms the suction fine coal taken over and the continuous motion of compression output fine coal.
Concrete, the mechanical type fine coal pressurization continuous conveying system of the present embodiment also comprises the high-pressure powdered coal feed bin 800 for storing the rear fine coal of pressurization, described in each, discharging opening is parallel on a delivery piping, described delivery piping conducting is connected on high-pressure powdered coal feed bin 800, is also provided with as shown in Figure 1 a stable-pressure device 900 on described delivery piping.
Exemplary, the mechanical type fine coal pressurization continuous conveying system of the present embodiment can also add high-pressure buffering pot, fine coal is revealed other device (not shown)s such as calibration unit, fine coal leakage alarming device, fine coal feed flow control setup, temperature measuring equipment, attemperator.In the time that fine coal has any leakage in the time that any mechanical compress advances, fine coal be will trigger and calibration unit and fine coal leakage alarming device revealed, timely stop motion is formed protection by system.In high-pressure powdered coal feed bin, be furnished with temperature measuring equipment and attemperator, can determine propelling frequency and the speed of mechanical compress by the storage level of fine coal in high-pressure powdered coal feed bin, effectively control conveying and the flowing power of fine coal.
Exemplary, the concrete applicable cases of mechanical type fine coal pressurization continuous conveying system of the present embodiment is as follows:
Adopting the mechanical type fine coal pressurization continuous conveying system of the present embodiment can be the dry pulverized coal of 7 μ m-200 μ m by particle diameter, is forced into 2.0Mpag-15MPag by normal pressure, and traffic capacity can reach 20-125 tons/hours coal dusts.
Normal pressure fine coal charging gear 600 is arranged in the outlet of normal pressure fine coal feed bin 500, start normal pressure fine coal charging gear 600 and open corresponding feed controller 300, fine coal enters in corresponding cylinder body 111 continuously by each piston 112 suction of gravity and boost pump group 100.In the time that piston 112 advances to range, feed controller 300 is closed, and driving machine 200 propelling pistons 112 compress fine coal and form high pressure.In the time that pressure reaches setting value, discharging controller 400 is opened, and directly uses or to enter high-pressure powdered coal feed bin 800 for subsequent use.
In the time that piston 112 reaches maximum crush stroke, discharging controller 400 cuts out, and piston 112 starts to pull open motion, and feed controller 300 is opened, and starts to flow into normal pressure fine coal.
In described mechanical type fine coal pressure device fine coal from normal pressure fine coal feed bin 500 enter cylinder body 111 when interior feed controller 300 open, in the time being full of fine coal in cylinder body 111, feed controller 300 is closed, mechanical type compression starts fine coal to form ahead running, and compression fine coal forms high pressure.
In the time that fine coal is pressurized to certain pressure, discharging controller 400 is opened, and high-pressure powdered coal directly uses or is pushed in normal pressure fine coal feed bin 500, and in the time that compression action finishes, discharging controller 400 cuts out automatically, avoids the interior fine coal of high-pressure powdered coal feed bin 800 to reflux.
Move and repeatedly carry out with this, combine the boost pump group 100 forming and can reach the object of continuous feed, compression, discharging by multiple boost pumps 110.Mechanical type pressure device utilizes each boost pump 110 orders in boost pump group 100 to form suction fine coal and the motion of compression fine coal taken over, forms thus the defeated coal process of continuity.
Certainly, in other specific embodiments, the present embodiment can also add miscellaneous part, and above-mentioned each parts also all can adopt market to commonly use outsourcing piece, can select non-return valve as feed controller and discharging controller, just repeats no more herein.
Embodiment tri-:
The present embodiment proposes a kind of mechanical type fine coal continuous carrying method that pressurizes, adopt in parallel formation of two or three above boost pumps to take over the boost pump group that sucks fine coal and the motion of compression fine coal, normal pressure fine coal is imported in described boost pump group continuously, take over and suck fine coal and compression fine coal by each boost pump in described boost pump group, then carry out the continuous wave output of high-pressure powdered coal.
The mechanical type fine coal of the present embodiment continuous carrying method that pressurizes can specifically be applied at the mechanical type fine coal pressurization continuous conveying system described in embodiment bis-, certainly, the mechanical type fine coal of the present embodiment continuous carrying method that pressurizes also can be applied in other concrete systems, repeats no more herein.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a mechanical type fine coal pressure device, it is characterized in that: comprise suction fine coal and compression fine coal the boost pump group of moving and the driving machine that drives boost pump piston movement taken over for forming in order, described boost pump group comprises the boost pump that two or three are above, described boost pump comprises cylinder body and piston, described piston is connected on described driving machine, on described cylinder body, be provided with feeding mouth for inputting fine coal and for exporting the discharging opening of fine coal, on described feeding mouth, be provided with feed controller, on described discharging opening, be provided with discharging controller.
2. mechanical type fine coal pressure device as claimed in claim 1, is characterized in that: described boost pump group comprises three boost pumps.
3. a mechanical type fine coal pressurization continuous conveying system, is characterized in that: comprise normal pressure fine coal feed bin, normal pressure fine coal charging gear, mechanical type fine coal pressure device and control setup;
Described mechanical type fine coal pressure device comprises suction fine coal and compression fine coal the boost pump group of moving and the driving machine that drives boost pump piston movement taken over for forming in order, described boost pump group comprises the boost pump that two or three are above, described boost pump comprises cylinder body and piston, described piston is connected on described driving machine, on described cylinder body, be provided with feeding mouth for inputting fine coal and for exporting the discharging opening of fine coal, on described feeding mouth, be provided with feed controller, on described discharging opening, be provided with discharging controller;
The conducting of described normal pressure fine coal feed bin connects described normal pressure fine coal charging gear, and described normal pressure fine coal charging gear connects cylinder body described in each by corresponding feeding mouth conducting, is externally exported by corresponding discharging opening; Driving machine, described feed controller and described discharging controller described in described control setup control linkage, in the time that described piston reaches maximum crush stroke, corresponding discharging controller cuts out, and described piston starts to pull open motion, corresponding feed controller is opened, and starts to flow into normal pressure fine coal; In the time that described piston reaches maximum and pulls open stroke, corresponding feed controller is closed, and described piston starts propelling extrusion motion, and corresponding discharging controller opens, starts to export high-pressure powdered coal; The multiple described boost pumps of described control setup control move to take over repeatedly with this and carry out, and form the suction fine coal of taking over and the continuous motion of compressing output fine coal.
4. mechanical type fine coal pressurization continuous conveying system as claimed in claim 3, it is characterized in that: also comprise the high-pressure powdered coal feed bin for storing the rear fine coal of pressurization, described in each, discharging opening is parallel on a delivery piping, and described delivery piping conducting is connected on described high-pressure powdered coal feed bin.
5. mechanical type fine coal pressurization continuous conveying system as claimed in claim 4, is characterized in that: on described delivery piping, be also provided with a stable-pressure device.
6. a mechanical type fine coal continuous carrying method that pressurizes, it is characterized in that: adopt in parallel formation of two or three above boost pumps to take over the boost pump group that sucks fine coal and the motion of compression fine coal, normal pressure fine coal is imported in described boost pump group continuously, take over and suck fine coal and compression fine coal by each boost pump in described boost pump group, then carry out the continuous wave output of high-pressure powdered coal.
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| CN106190330A (en) * | 2016-08-28 | 2016-12-07 | 陈丽 | The fine coal pressure-flow system of a kind of coal-fired gasification air flow bed and method |
| WO2019200712A1 (en) * | 2018-04-16 | 2019-10-24 | 江苏师范大学 | Precise pressure increasing system and method for pneumatic transport |
| CN111792382A (en) * | 2019-04-09 | 2020-10-20 | 航天长征化学工程股份有限公司 | Multi-piece plunger type powder pressurizing and conveying device |
| CN114672353A (en) * | 2022-04-01 | 2022-06-28 | 新奥科技发展有限公司 | Semicoke pressurization treatment device, system and semicoke pressurization treatment method |
| CN114671252A (en) * | 2022-03-17 | 2022-06-28 | 常州大学 | Gas explosion type micro powder feeding device and powder feeding method thereof |
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| CN111792382B (en) * | 2019-04-09 | 2024-05-28 | 航天长征化学工程股份有限公司 | Multi-piece plunger type powder pressurizing and conveying device |
| CN114671252A (en) * | 2022-03-17 | 2022-06-28 | 常州大学 | Gas explosion type micro powder feeding device and powder feeding method thereof |
| CN114672353A (en) * | 2022-04-01 | 2022-06-28 | 新奥科技发展有限公司 | Semicoke pressurization treatment device, system and semicoke pressurization treatment method |
| CN114672353B (en) * | 2022-04-01 | 2023-12-08 | 新奥科技发展有限公司 | Semicoke pressurization treatment device, semicoke pressurization treatment system and semicoke pressurization treatment method |
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