CN212843899U - Solid sulfur ash superfine admixture measurement system in bulk - Google Patents
Solid sulfur ash superfine admixture measurement system in bulk Download PDFInfo
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- CN212843899U CN212843899U CN202021719993.5U CN202021719993U CN212843899U CN 212843899 U CN212843899 U CN 212843899U CN 202021719993 U CN202021719993 U CN 202021719993U CN 212843899 U CN212843899 U CN 212843899U
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Abstract
The application relates to a metering system for ultrafine blending materials of solid sulfur ash in bulk, relates to the technical field of powder metering systems, and aims to solve the problem of low metering precision in the related technology. The automatic feeding device comprises a frame, a feeding device and a metering bin are arranged on the frame, the metering bin comprises a bin body and a weighing sensor, the weighing sensor is arranged on the frame, the bin body is arranged on the weighing sensor, a conical buffer table is arranged in the bin body, the buffer table is arranged below an inlet pipe of the bin body, the buffer table is fixedly connected to the frame through a connecting rod penetrating through a top wall of the bin body, and a gap is formed between the buffer table and the inner wall of the bin body. This application has the effect that promotes measurement system's measurement precision.
Description
Technical Field
The application relates to the technical field of powder metering systems, in particular to a bulk metering system for ultra-fine blending materials of fluidized bed combustion ash residues.
Background
At present, with the popularization and application of the circulating fluidized bed coal-fired technology in thermal power plants, the discharged solid sulfur ash slag increases year by year, the discharged solid sulfur ash slag is often used as building material for recycling treatment, namely, the solid sulfur ash and slag are respectively modified by means of wall breaking and shaping, alkali excitation and the like, and are mixed and homogenized according to the optimal ash slag ratio to prepare concrete superfine admixture for use. When the treated ash and slag are mixed, a powder metering system is needed.
The utility model discloses a chinese utility model patent that publication number is CN203450638U discloses a powder measurement conveying system, and it includes former feed bin, weighing device, conveyor and is used for controlling feed speed's feeder, former feed bin, feeder, weighing device and conveyor set gradually, powder measurement conveying system is still including being used for control weighing device with the control valve of conveyor intercommunication. When in use, the feeding device is started, the control valve is opened, the feeding device transports powder from the raw material bin to the weighing device, when the weight of the powder in the weighing device reaches a preset value, the feeding device stops feeding, and simultaneously,
the control valve is opened to convey the weighed powder to a designated place through the conveying device.
In view of the above-mentioned related art, the inventor believes that when the powder is weighed, the impulse generated by the falling of the powder causes the weighed weight to be higher than the actual weight of the powder, and has the defect of low metering accuracy.
SUMMERY OF THE UTILITY MODEL
In order to promote the measurement accuracy of measurement system, this application provides a gu super fine admixture bulk measurement system of sulphur lime-ash.
The application provides a gu superfine admixture measurement system in bulk of sulphur lime-ash adopts following technical scheme:
the bulk metering system for the ultra-fine blending materials of the sulfur fixation ash comprises a frame, wherein a feeding device and a metering bin are arranged on the frame, the metering bin comprises a bin body and a weighing sensor, the weighing sensor is arranged on the frame, the bin body is arranged on the weighing sensor, a conical buffer table is arranged in the bin body, the buffer table is arranged below a feeding pipe of the bin body, the buffer table is fixedly connected to the frame through a connecting rod penetrating through the top wall of the bin body, and a gap is formed between the buffer table and the inner wall of the bin body.
By adopting the technical scheme, the feeding device is adjusted to be started, the feeding device conveys powder into the metering bin, the powder enters the inner cavity of the bin body through the feeding pipe of the bin body, falls onto the buffer table under the action of gravity, then slides onto the side wall of the bin body from the buffer table, slides to the bottom of the bin body along the side wall of the bin body for temporary storage until the weight of the powder in the bin body is measured by the weighing sensor to reach the preset weight, the controller of the bin body obtains a feedback signal of the weighing sensor, controls the feeding device to stop feeding, controls the discharge hole of the bin body to be opened, and discharges the powder in the bin body; the cushion table of design cushions the powder that gets into the storehouse body, reduces powder velocity of motion, and then to the effort in the storehouse body when reducing the powder whereabouts, reduces the difference between the weight that weighing sensor called and the actual weight, reduces weighing error, promotes the measurement accuracy.
Preferably, the bin body is arranged in an inverted cone shape.
Through adopting above-mentioned technical scheme, the storehouse body sets up to the back taper, cushions once more from the powder of the landing on the cushion table through the lateral wall of the storehouse body, and then reduces the powder instantaneous effort to the storehouse body when whereabouts, reduces and weighs undulantly, further improves and weighs the precision.
Preferably, the connecting rod is connected with the frame through a spring.
By adopting the technical scheme and the designed spring, the buffering table can elastically buffer the powder, so that the buffering effect of the buffering table on the powder is further improved, and the metering precision is further improved; meanwhile, the buffer table is shaken up and down in the feeding process, powder adhered to the buffer table is vibrated away from the buffer table, the possibility that the buffer table affects the powder metering is reduced, and the metering error is further reduced.
Preferably, one side of the connecting rod, which extends out of the bin body, is provided with a boss, the rack is provided with a limiting rod, the limiting rod penetrates through the boss, and a limiting block is arranged at one end of the limiting rod, which penetrates through the boss.
Through adopting above-mentioned technical scheme, the boss, gag lever post and the stopper of design cooperate jointly, protect the spring on the one hand, avoid the spring to exceed deformation range, guarantee spring normal use, on the other hand guarantees that the enough powder in clearance between buffering platform and the internal wall of storehouse passes through, prevents that the powder from taking place to block up in clearance department between buffering platform and the internal wall of storehouse, reduces the possibility that the buffering platform carried the powder, promotes measurement accuracy.
Preferably, the feeding device comprises a plurality of groups of feeding mechanisms and a connecting mechanism; the feeding mechanism comprises a raw material bin and a spiral conveyor, a discharge hole of the raw material bin is communicated with a feed hole of the spiral conveyor, and a driving motor of the spiral conveyor is electrically connected with a controller of the bin body; the connecting mechanism comprises a conveying pipe and a soft connector, the conveying pipe is communicated with the inner cavity of the conveying pipe, and the soft connector is arranged between the conveying pipe and the feeding pipe of the bin body.
By adopting the technical scheme, when powder is metered, the spiral conveyor is adjusted to be started, the powder in the raw material bin is conveyed into the conveying pipe, then the powder enters the metering bin along the conveying pipe through the flexible coupling device to be weighed, after the weight measured by the weighing sensor reaches the preset weight, a feedback signal is sent to the controller of the bin body, the controller of the bin body controls the driving motor of the spiral conveyor to stop, the powder conveying is stopped, and the quantitative metering of the powder is completed; the designed spiral conveyor is used for conveying powder, so that the conveying efficiency is high, the conveying speed is stable, and the use is convenient; the soft connector of design reduces the influence of feeder part weight change to measurement storehouse measurement accuracy, promotes measurement accuracy.
Preferably, the drive motor of the screw conveyor is provided as a servo motor.
By adopting the technical scheme, after the weight measured by the weighing sensor is close to the preset weight, a feedback signal is sent to the controller of the bin body, the controller of the bin body controls the driving motor of the screw conveyor to decelerate, so that the screw conveyor conveys powder at a low speed, and the feedback signal is sent to the controller of the bin body until the weight measured by the weighing sensor reaches the preset weight, and the controller of the bin body controls the driving motor of the screw conveyor to stop conveying the powder; the servo motor of design is convenient for adjust auger delivery's conveying speed, when guaranteeing feed rate, forms the compound mode of weighing that carries out the coarse weighing and add the fine weighing to the powder, further improves and weighs the precision.
Preferably, the feeding device further comprises a plugging mechanism capable of plugging a discharge port of the screw conveyor, the plugging mechanism comprises a plug and an air cylinder, the air cylinder is arranged on the screw conveyor, a piston pipe of the air cylinder penetrates through the side wall of the conveying pipe and extends into the inner cavity of the conveying pipe, the plug is arranged on a piston rod of the air cylinder, and a control valve of the air cylinder is electrically connected with the controller of the bin body.
By adopting the technical scheme, after the weight measured by the weighing sensor reaches the preset weight, the controller of the bin body controls the driving motor of the screw conveyor to stop and controls the piston pipe of the air cylinder to retract until the piston pipe is blocked to block the discharge hole of the screw conveyor; the designed plugging mechanism plugs the discharge hole of the screw conveyor, so that powder at the discharge hole of the screw conveyor is prevented from falling to the metering bin, and the metering precision is further improved.
Preferably, a plurality of groups of cleaning mechanisms are arranged on the bin body, each cleaning mechanism comprises an air inlet pipe, a rotary spray head and a quick coupling, the rotary spray head is arranged at one end of the air inlet pipe in the inner cavity of the bin body, and the quick coupling is arranged at one end of the air inlet pipe outside the bin body.
Through adopting above-mentioned technical scheme, the clearance mechanism of design, with compressed air conveying pipeline switch-on, ventilate in the powder raw materials storehouse to the powder discharge in the measurement storehouse, carry over out of the remaining powder in the measurement storehouse from storehouse body discharge gate through the air current, reduce the error between the volume of the discharged powder of measurement storehouse and the actual weighing volume, simultaneously, the accuracy when promoting weighing once more.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the designed buffer table buffers the powder entering the bin body, reduces the movement speed of the powder, further reduces the acting force of the powder on the bin body when the powder falls, reduces the difference value between the weight weighed by the weighing sensor and the actual weight, reduces the weighing error and improves the metering precision;
2. the designed plugging mechanism plugs the discharge hole of the spiral conveyor, so that powder at the discharge hole of the spiral conveyor is prevented from falling to the metering bin, and the metering precision is further improved;
3. the clearance mechanism of design, with compressed air conveying pipeline switch-on, ventilate in the powder raw materials storehouse to the powder discharge in the measurement storehouse, carry over out the remaining powder in with the measurement storehouse through the air current from storehouse body discharge gate, reduce the error between the volume of weighing from measurement storehouse exhaust powder volume and actual, simultaneously, the accuracy when promoting weighing once more.
Drawings
FIG. 1 is a schematic view of a first perspective view of a bulk metering system for ultra-fine fluidized bed ash in accordance with an embodiment of the present invention.
FIG. 2 is a schematic diagram of a second perspective view of a bulk metering system for ultra-fine fluidized bed ash in accordance with an embodiment of the present invention.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Description of reference numerals: 1. a frame; 11. a limiting rod; 111. a limiting block; 2. a feeding device; 21. a feeding mechanism; 211. a raw material bin; 212. a screw conveyor; 22. a connecting mechanism; 221. a delivery pipe; 222. a soft coupler; 23. a plugging mechanism; 231. a plug; 232. a cylinder; 3. a metering bin; 31. a bin body; 32. a weighing sensor; 4. a buffer table; 41. a connecting rod; 411. a boss; 42. a spring; 5. a cleaning mechanism; 51. an air inlet pipe; 52. rotating the spray head; 53. a quick coupling.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a metering system in bulk for ultrafine blending materials of solid sulfur ash. Referring to fig. 1, the system for metering the ultrafine blending materials in bulk of the fluidized bed combustion ash residues comprises a frame 1, wherein a feeding device 2 and a metering bin 3 are installed on the frame 1.
Referring to fig. 1, the metering bin 3 includes the storehouse body 31 and weighing sensor 32, weighing sensor 32 is fixed in on the frame 1 through the mount pad of welding in frame 1, storehouse body 31 is installed on weighing sensor 32, and storehouse body 31 is the back taper setting, the welding of storehouse body 31 top has the closing cap, the inlet pipe welding of storehouse body 31 is on the closing cap, the discharging pipe welding of storehouse body 31 is in storehouse body 31 bottom, and install the electromagnetism butterfly valve on the discharging pipe of storehouse body 31, the electromagnetism butterfly valve is connected with the controller electricity of storehouse body 31.
Referring to fig. 1 and 2, the feeding device 2 includes two sets of feeding mechanisms 21 and one set of connecting mechanisms 22; the feeding mechanism 21 comprises a raw material bin 211 and a screw conveyor 212, wherein a discharge hole of the raw material bin 211 is communicated with a feed hole of the screw conveyor 212, and a servo motor of the screw conveyor 212 is set as a servo motor and is electrically connected with a controller of the bin body 31. The connecting mechanism 22 comprises a conveying pipe 221 and a soft connector 222, the discharge holes of the two screw conveyors 212 are communicated with the inner cavity of the conveying pipe 221, one end of the soft connector 222 is communicated with the conveying pipe 221 through a flange, and the other end of the soft connector 222 is communicated with the feeding pipe of the bin body 31 through a flange.
Referring to fig. 3 and 4, the feeding device 2 further includes a plugging mechanism 23 capable of plugging the discharge hole of the screw conveyor 212, the plugging mechanism 23 includes a plug 231 and an air cylinder 232, the air cylinder 232 is fixed on the screw conveyor 212 by a bolt, a piston tube of the air cylinder 232 penetrates through the side wall of the conveying pipe 221 and extends into the inner cavity of the conveying pipe 221, the plug 231 is welded to the end of the piston rod of the air cylinder 232 that extends into the inner cavity of the conveying pipe 221, and a control valve of the air cylinder 232 is electrically connected with a controller of the bin body 31.
Referring to fig. 3, two groups of cleaning mechanisms 5 are arranged on the bin body 31, each cleaning mechanism 5 comprises an air inlet pipe 51, a rotary nozzle 52 and a quick coupling 53, the air inlet pipe 51 penetrates through the sealing cover, the rotary nozzle 52 is mounted at one end of the air inlet pipe 51 in the inner cavity of the bin body 31, and the quick coupling 53 is mounted at one end of the air inlet pipe 51 outside the bin body 31 and is communicated with a 221 channel of the compressed air conveying pipe.
Referring to fig. 3 and 4, a conical buffer table 4 is installed in the bin body 31, the buffer table 4 is disposed right below the feeding pipe of the bin body 31, and a gap is formed between the buffer table 4 and the inner wall of the bin body 31. The welding has two connecting rods 41 on cushion collar 4, connecting rod 41 is vertical to be set up and runs through the closing cap and stretch out storehouse body 31 inner chamber, connecting rod 41 stretches out and is connected through spring 42 between the one end of storehouse body 31 inner chamber and the frame 1, the welding of spring 42 one end is in frame 1, the other end welding is on the end wall that connecting rod 41 is close to frame 1, connecting rod 41 stretches out storehouse body 31 one side and still welds boss 411, the welding has gag lever post 11 in the frame 1 of connecting rod 41 top, gag lever post 11 runs through the setting of boss 411 along vertical direction, gag lever post 11 passes boss 411 one end an organic whole and is.
The implementation principle of the system for metering the ultrafine blending materials in bulk of the fluidized bed combustion ash residue is as follows: when powder is measured, the adjusting cylinder 232 is started, a piston rod of the cylinder 232 extends out to drive the plug to be far away from a discharge hole of the corresponding screw conveyor 212, so that the discharge hole of the screw conveyor 212 is opened, then the adjusting screw conveyor 212 is started at a high speed, the screw conveyor 212 conveys the powder in the raw material bin 211 into the conveying pipe 221, then the powder enters the measuring bin 3 through the flexible coupling 222 along the conveying pipe 221, the powder entering the measuring bin 3 falls onto the buffer table 4 under the action of gravity, then slides onto the side wall of the bin body 31 from the buffer table 4 and slides to the bottom of the bin body 31 along the side wall of the bin body 31 for temporary storage, a feedback signal is sent to a controller of the bin body 31 after the weight measured by the weighing sensor is close to the preset weight, the controller of the bin body 31 controls the servo motor of the screw conveyor 212 to decelerate so that the screw conveyor 212 conveys the powder at a low speed until, and a feedback signal is sent to the controller of the bin body 31, the controller of the bin body 31 controls the servo motor of the screw conveyor 212 to stop conveying the powder, and meanwhile, the controller of the bin body 31 controls the piston rod of the air cylinder 232 to retract so as to drive the blockage to block the discharge hole of the screw conveyor 212. The controller of the bin body 31 controls the electromagnetic butterfly valve to be opened, and the powder in the bin body 31 is discharged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a superfine admixture measurement system in bulk of gu sulphur lime-ash, includes frame (1), be provided with feeder (2) and measurement storehouse (3) on frame (1), its characterized in that: metering bin (3) are including the storehouse body (31) and weighing sensor (32), weighing sensor (32) set up in on frame (1), the storehouse body (31) set up in on weighing sensor (32), be provided with conical cushion table (4) in the storehouse body (31), cushion table (4) set up in the inlet pipe below of the storehouse body (31), cushion table (4) through running through connecting rod (41) fixed connection of the roof of the storehouse body (31) in frame (1), just be provided with the clearance between cushion table (4) and the inner wall of the storehouse body (31).
2. The system of claim 1, wherein the system comprises: the bin body (31) is arranged in an inverted cone shape.
3. The ash-fixing ultrafine admixture bulk metering system according to claim 2, wherein: the connecting rod (41) is connected with the frame (1) through a spring (42).
4. The system of claim 3, wherein the system comprises: the connecting rod (41) stretches out storehouse body (31) one side and is provided with boss (411), be provided with gag lever post (11) on frame (1), gag lever post (11) run through boss (411) and set up, just gag lever post (11) pass boss (411) one end and are provided with stopper (111).
5. The system of claim 1, wherein the system comprises: the feeding device (2) comprises a plurality of groups of feeding mechanisms (21) and a connecting mechanism (22); the feeding mechanism (21) comprises a raw material bin (211) and a screw conveyor (212), a discharge hole of the raw material bin (211) is communicated with a feed hole of the screw conveyor (212), and a driving motor of the screw conveyor (212) is electrically connected with a controller of the bin body (31); the connecting mechanism (22) comprises a conveying pipe (221) and a soft connector (222), the discharge holes of all the screw conveyors (212) are communicated with the inner cavity of the conveying pipe (221), and the soft connector (222) is arranged between the conveying pipe (221) and the feeding pipe of the bin body (31).
6. The ash-fixing ultrafine admixture bulk metering system of claim 5, wherein: the drive motor of the screw conveyor (212) is set as a servo motor.
7. The ash-fixing ultrafine admixture bulk metering system of claim 5, wherein: feed arrangement (2) still include can be right the discharge gate of auger delivery ware (212) carries out shutoff mechanism (23), shutoff mechanism (23) include end cap (231) and cylinder (232), cylinder (232) set up in on auger delivery ware (212), just the piston pipe of cylinder (232) runs through conveyer pipe (221) lateral wall and stretches into conveyer pipe (221) inner chamber, end cap (231) set up in on the piston rod of cylinder (232), the control valve of cylinder (232) with the controller electricity of storehouse body (31) is connected.
8. The system of claim 1, wherein the system comprises: the bin body (31) is provided with a plurality of groups of cleaning mechanisms (5), each cleaning mechanism (5) comprises an air inlet pipe (51), a rotary spray head (52) and a quick joint (53), the rotary spray heads (52) are arranged at one ends of the air inlet pipes (51) in the inner cavity of the bin body (31), and the quick joints (53) are arranged at one ends of the air inlet pipes (51) outside the bin body (31).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021719993.5U CN212843899U (en) | 2020-08-17 | 2020-08-17 | Solid sulfur ash superfine admixture measurement system in bulk |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021719993.5U CN212843899U (en) | 2020-08-17 | 2020-08-17 | Solid sulfur ash superfine admixture measurement system in bulk |
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| CN212843899U true CN212843899U (en) | 2021-03-30 |
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| CN202021719993.5U Active CN212843899U (en) | 2020-08-17 | 2020-08-17 | Solid sulfur ash superfine admixture measurement system in bulk |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237543A (en) * | 2021-06-09 | 2021-08-10 | 青岛环港重工科技有限公司 | Novel efficient and accurate light material weighing device |
| CN113859783A (en) * | 2021-09-07 | 2021-12-31 | 陕西正元粉煤灰综合利用有限公司 | Superfine composite admixture warehouse |
-
2020
- 2020-08-17 CN CN202021719993.5U patent/CN212843899U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237543A (en) * | 2021-06-09 | 2021-08-10 | 青岛环港重工科技有限公司 | Novel efficient and accurate light material weighing device |
| CN113237543B (en) * | 2021-06-09 | 2022-07-29 | 青岛环港重工科技有限公司 | Efficient and accurate light material weighing device |
| CN113859783A (en) * | 2021-09-07 | 2021-12-31 | 陕西正元粉煤灰综合利用有限公司 | Superfine composite admixture warehouse |
| CN113859783B (en) * | 2021-09-07 | 2022-10-04 | 陕西正元粉煤灰综合利用有限公司 | Superfine composite admixture warehouse |
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