CN202694054U - Metering scale for coal ash - Google Patents
Metering scale for coal ash Download PDFInfo
- Publication number
- CN202694054U CN202694054U CN 201220267885 CN201220267885U CN202694054U CN 202694054 U CN202694054 U CN 202694054U CN 201220267885 CN201220267885 CN 201220267885 CN 201220267885 U CN201220267885 U CN 201220267885U CN 202694054 U CN202694054 U CN 202694054U
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- CN
- China
- Prior art keywords
- impeller
- weighing balance
- blade
- flyash
- external cycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model provides a metering scale for coal ash, which comprises a scale pan, fulcrum bearing components, an upper cover plate, an impeller, a hollow shaft speed-reducing motor, a velocity measuring sensor, a weighing sensor, a microcomputer control system, a material inlet, a material outlet and a frame platform, wherein the impeller is mounted in the scale pan; and the scale pan is supported on the frame platform by the fulcrum bearing components located at two ends of the horizontal symmetry axis of the scale pan and swings right and left by taking a connecting line of fulcrums at the two ends as the axis to form a balance structure. The metering scale is characterized in that the impeller adopts a closed structure formed by an annular ring and an outer annular ring, as well as vanes distributed uniformly on the inner and the outer annular rings. The metering scale is used for supplying and metering the coal ash and is high in capability and fully-closed, and the mounting height of the metering scale is low.
Description
Technical field:
The utility model relates to the flyash metering field, particularly a kind of flyash weighing balance.
Background technology:
Flyash obtains using fast and widely at building material industry in recent years.Dry powder coal ash unit weight is little, fineness is little, the flowability is fabulous, and the while is very easily moisture absorption moisture knot again.So the feed course of conveying of flyash easily produces punching material, runs material and airborne dust, also easily viscid, arch camber, putty cause the feed bin discharging undesired.And its flowability changes with residing state, storehouse pressure, moisture and inflating condition, and these allow the conveying of flyash and measure control bring larger difficulty.In addition, flyash has certain abrasiveness mainly by ultrafine particles compositions such as crystal, vitreums to equipment.When selecting conveying, feed, metering outfit scheme, must take into full account.Require in the practical application that the single device ability is large, price is low, installing space is as far as possible little, the existing product of my company is difficult to satisfy simultaneously these requirements.The main belt that uses claims and spiral reamer on the production line at present.The advantage that belt claims is that ability is large, price is low, and shortcoming is that easy airborne dust, precision are lower.The advantage of spiral reamer is that ability is large, price is low, shortcoming be measuring accuracy low, produce jet flow easily.Therefore we need to develop a kind of flyash that is applicable to and supply with and the large ability of metering, hermetically sealed, flyash weighing balance that setting height(from bottom) is low, moderate.
The utility model content:
Technical problem to be solved in the utility model is to solve the problem that measuring accuracy is low, sealing is poor, provides a kind of and supplies with and the large ability, the hermetically sealed good flyash weighing balance that measure.
The utility model provides a kind of flyash weighing balance, comprise inlet valve, weighing balance and electric control system, wherein inlet valve and weighing balance are arranged up and down, ability coupling between inlet valve and the weighing balance is finished by electric control system, described inlet valve forms by three layers, top cylinder and agitator layer from top to bottom successively, bottom cylinder and rotor layer, supply disk and impeller layer, vertical shaft vertically passes inlet valve inside, the tubular shaft reducing motor of bottom is passed to vertical shaft to power, vertical shaft rotarily drive agitator mounted thereto, rotor and impeller rotate synchronously.
Further, rotor is the lattice wheel construction of an enclosed, it is comprised of annular Internal and external cycle and uniform thereon blade, blade and annular Internal and external cycle are divided into isometric little space with the bottom cylinder space, the regulator board lower plane on the upper surface of blade and annular Internal and external cycle and top forms seal clearance, and the upper plane of the lower surface of blade and annular Internal and external cycle and the impeller chimney of bottom forms seal clearance.Described seal clearance is at 0.5mm.
Further, impeller is closed type structure, it is comprised of annular Internal and external cycle and uniform blade, blade is divided into isometric little space uniformly with the annular space of supply disk, the impeller chimney lower plane on the upper surface of blade and annular Internal and external cycle and top forms seal clearance, the lower surface of blade and annular Internal and external cycle and supply disk bottom surface form seal clearance, and described seal clearance all is controlled at 0.5mm.
Further, described weighing balance comprises pan of a steelyard, fulcrum roller assembly, upper cover plate, impeller, tubular shaft reducing motor, tachogenerator, LOAD CELLS, Control System of Microcomputer, feeding mouth, discharging opening and pallet, the in-built impeller of described pan of a steelyard, be supported on the described pallet by the fulcrum roller assembly that is positioned at its horizontal symmetry axis two ends, described pan of a steelyard is swung take the line of two ends fulcrum as axle, consist of a day flat structure, described impeller forms closed type structure by inside-and-outside ring circle and uniform thereon blade.
Further, in the upper and lower of the internal spherical surface of described impeller a flexible seal ring is housed respectively.
Further, the tubular shaft reducing motor is connected in the vertical symmetry central lower of described pan of a steelyard, and described reducing motor is passed to impeller to power, and it is turned round around vertical center axis.
Further, described Control System of Microcomputer comprises flow testing division and flow control section, and described flow testing division detects flow value; Described flow control section is made of its output function value pid control circuit.
Further, described Control System of Microcomputer is made of the FUC-276 microcomputerized controller.
The beneficial effects of the utility model are that what of feed quantity can carry out accurately step-less adjustment by revolution; This weighing balance self is exactly the balance structure, and the powder that adheres to fixed part so be in all the time left and right sides state of equalization, Zero change can not occur by the rotational automatic counteracting of impeller yet; Because be complete seal construction, can not produce Lou powder and dust; Owing to adopt continuous detecting flow mode, can detect incessantly and control; Owing to adopt the control that adapts to mechanism characteristics, can draw rapidly reaction and high precision to technique change; The reliability of machinery and control is high, so fault is few and easy care.
Description of drawings:
Fig. 1 (A) is the side view of flyash measuring apparatus in the utility model, and Fig. 1 (B) is the electric control system figure among Fig. 1 (A);
Fig. 2 is the right view of flyash measuring apparatus in the utility model;
Fig. 3 is the structural drawing of inlet valve in the utility model;
Fig. 4 is the side view of weighing balance in the utility model;
Fig. 5 is the front view of weighing balance in the utility model.
Embodiment:
The basic structure of flyash measuring apparatus is referring to Fig. 1 (A), Fig. 1 (B), and Fig. 2 comprises inlet valve, weighing balance and electric control system.Inlet valve and weighing balance arrange up and down, makes powder fluidized from the flyash of upstream through inlet valve, steadily supplies with the weighing balance in downstream, guarantees that weighing balance is by given ability continous-stable feed.All link to each other with being flexible coupling between weighing balance and top inlet valve and the following induction system, to eliminate the undesired signal to weighing balance, guarantee measurement accuracy and stability.Ability coupling between inlet valve and the weighing balance is finished by electric control system.
The structure of inlet valve as shown in Figure 3.Inlet valve is a kind of vertical structure, and it is installed on the pallet 10 by supply disk 8.Inlet valve forms by three layers, is top cylinder 2 and 3 layers of agitators, bottom cylinder 1 and 5 layers of rotors, supply disk 8 and 7 layers in impeller from top to bottom successively.Vertical shaft 4 vertically passes inlet valve inside, and the tubular shaft reducing motor 9 of bottom is passed to vertical shaft 4 to power, and rotarily drive agitator mounted thereto 3, rotor 5 and the impeller 7 of vertical shaft 4 rotate synchronously.
Vertical shaft 4 rotates counterclockwise, and the powders in the top cylinder 2 are stirred through agitator, flow into bottom cylinder 1 and 5 layers of rotors from the scallop hole S1 of regulator board 13, along with the rotation of rotor 5 with the space of powder filling in rotor 5; Rotor 5 is lattice wheel constructions of an enclosed, and it is comprised of annular Internal and external cycle and uniform thereon blade.Blade becomes isometric little space with annular Internal and external cycle with bottom cylinder 1 space segmentation, the upper surface of blade and annular Internal and external cycle and the regulator board on top 13 lower planes form seal clearance a, the upper plane of the lower surface of blade and annular Internal and external cycle and the impeller chimney of bottom 6 forms seal clearance b, seal clearance a and b all are controlled at about 0.5mm, these little gaps have stoped powder to flow freely interlobate, flow freely interlobate thereby suppressed powder.Powder is along with the rotation of rotor 5 is brought to again the right side of O-O axis of symmetry, and the scallop hole S2 that opens on impeller chimney 6 flows into the supply disk layer.Rigidity impeller 7 in the supply disk is closed type structure equally, it is comprised of annular Internal and external cycle and uniform blade, blade is divided into isometric little space uniformly with the annular space of supply disk, the upper surface of blade and annular Internal and external cycle and the impeller chimney on top 6 lower planes form seal clearance c, the lower surface of blade and annular Internal and external cycle and supply disk bottom surface form seal clearance d, seal clearance c and d are 0.5mm, these little gaps have stoped powder to flow freely interlobate, thereby have suppressed the jet flow of powder.Simultaneously, in the upper and lower of the internal spherical surface of impeller a flexible seal ring 12 is housed respectively, its material is felt, and this O-ring seal has stoped the powder in the supply disk to pass annular inner ring to enter zone line, protected the normal operation of bearing arrangement 14.Powder, enters following meter and heavily claims to measure through being flexible coupling along with the rotation of impeller is brought to discharging opening 11 discharges.
The wherein structure of weigher such as Fig. 4, shown in 5, comprise pan of a steelyard 15, fulcrum roller assembly 16, upper cover plate 17, impeller 18, tubular shaft reducing motor 19, tachogenerator 20, LOAD CELLS 21, Control System of Microcomputer (not shown), feeding mouth 22, discharging opening 23 and pallet 24, described pan of a steelyard 15 in-built impellers 18, be supported on the pallet 24 by the fulcrum roller assembly 16 that is positioned at its horizontal symmetry axis two ends, pan of a steelyard 15 is swung take the line of two ends fulcrum as axle, consist of a day flat structure.
Tubular shaft frequency control motor 19 is connected in the vertical symmetry central lower of described pan of a steelyard 15, and described reducing motor 19 is passed to impeller 18 to power, and it is turned round around vertical center axis.This impeller 18 forms closed type structure by inside-and-outside ring circle and uniform thereon blade.Blade becomes isometric several little spaces with the space segmentation in the pan of a steelyard, and the pan of a steelyard bottom surface of the end face of blade and the rotor cap on top and bottom forms little gap, about the 0.5mm of this gap, stops powder to flow freely interlobate, has suppressed the generation of jet flow.
Feeding mouth 22 (being positioned at pan of a steelyard 15 tops) and discharging opening 23 (being positioned at pan of a steelyard 15 bottoms) all are arranged on the two fulcrum lines, and the disturbance of pan feeding and discharging can not have influence on the measuring accuracy of title.
Impeller 18 turns round around vertical center axis, from between the continuous impeller of filling in pan of a steelyard 15 of the powder of inlet valve, discharge along with being brought to discharging opening 23 behind impeller continuous rotation 180 degree, the blade space that soars continues half week of rotation under feeding mouth 22, continue acceptance from the powder of upper feeding mouth 22, thereby realize continuous and quantitative feed and the metering of powder.
A flexible seal ring 25 respectively is equipped with in upper and lower at the internal spherical surface of impeller 18, its material is felt, and this O-ring seal has stoped the powder of 15 li of pans of a steelyard to enter central space, has protected the normal operation of bearing arrangement 26.
Described Control System of Microcomputer comprises flow testing division and flow control section; Described flow testing division detects flow value; Described flow control section is made of its output function value pid control circuit.Described control system is made of the FUC-276 microcomputerized controller.Powder enters pan of a steelyard 15, LOAD CELLS 21 continuous detecting by the powder weight of pan of a steelyard half cycle from feeding mouth 22, the tach signal metering-in control system of the weighing balance that the weight signal that obtains records together with tachogenerator 20, this weight signal is converted to weight data through the A/D transducer, and calculate long-pending with the rotating speed that claimed at that time by flow testing division, namely detect flow value (PV value).Flow control section is made of pid control circuit, its output function value (MV value), as frequency setting signal, the rotating speed of control title and inlet valve is consistent the PV value of flow testing division detection and the upper setting value (SV value) of controller LCD to frequency converter this MV value.
What of feed quantity can carry out accurately step-less adjustment by revolution; This weighing balance self is exactly the balance structure, and the powder that adheres to fixed part so be in all the time left and right sides state of equalization, Zero change can not occur by the rotational automatic counteracting of impeller yet; Because be complete seal construction, can not produce Lou powder and dust; Owing to adopt continuous detecting flow mode, can detect incessantly and control; Owing to adopt the control that adapts to mechanism characteristics, can draw rapidly reaction and high precision to technique change; The reliability of machinery and control is high, so fault is few and easy care.
Above-mentioned detailed description is specifying for embodiments possible of the present utility model, above-mentioned embodiment is not to limit claim of the present utility model, allly do not break away from that equivalence of the present utility model is implemented or change, all should be contained in claim of the present utility model.
Claims (9)
1. flyash weighing balance, comprise inlet valve, weighing balance and electric control system, wherein inlet valve and weighing balance are arranged up and down, ability coupling between inlet valve and the weighing balance is finished by electric control system, it is characterized in that, described inlet valve forms by three layers, top cylinder (2) and agitator (3) layer from top to bottom successively, bottom cylinder (1) and rotor (5) layer, supply disk (8) and impeller (7) layer, vertical shaft (4) vertically passes inlet valve inside, the tubular shaft reducing motor (9) of bottom is passed to vertical shaft (4) to power, vertical shaft (4) rotarily drive agitator mounted thereto (3), rotor (5) and impeller (7) rotate synchronously.
2. a kind of flyash weighing balance according to claim 1, it is characterized in that, described rotor (5) is the lattice wheel construction of an enclosed, it is comprised of annular Internal and external cycle and uniform thereon blade, blade becomes isometric little space with annular Internal and external cycle with bottom cylinder (1) space segmentation, the upper surface of blade and annular Internal and external cycle and the regulator board on top (13) lower plane form seal clearance, and the upper plane of the lower surface of blade and annular Internal and external cycle and the impeller chimney of bottom (6) forms seal clearance.
3. a kind of flyash weighing balance according to claim 2 is characterized in that described seal clearance is at 0.5mm.
4. a kind of flyash weighing balance according to claim 1, it is characterized in that, impeller (7) is closed type structure, it is comprised of annular Internal and external cycle and uniform blade, blade is divided into isometric little space uniformly with the annular space of supply disk, the upper surface of blade and annular Internal and external cycle and the impeller chimney on top (6) lower plane form seal clearance, and the lower surface of blade and annular Internal and external cycle and supply disk bottom surface form seal clearance, and described seal clearance all is controlled at 0.5mm.
5. a kind of flyash weighing balance according to claim 1, it is characterized in that, described weighing balance comprises pan of a steelyard (15), fulcrum roller assembly (16), upper cover plate (17), impeller (18), tubular shaft reducing motor (19), tachogenerator (20), LOAD CELLS (21), Control System of Microcomputer, feeding mouth (22), discharging opening (23) and pallet (24), the in-built impeller of described pan of a steelyard (15) (18), be supported on the described pallet (24) by the fulcrum roller assembly (16) that is positioned at its horizontal symmetry axis two ends, described pan of a steelyard (15) is swung take the line of two ends fulcrum as axle, consist of a day flat structure, described impeller (18) forms closed type structure by inside-and-outside ring circle and uniform thereon blade.
6. flyash weighing balance according to claim 5 is characterized in that, in the upper and lower of the internal spherical surface of described impeller (18) flexible seal ring (25) is housed respectively.
7. flyash weighing balance according to claim 5, it is characterized in that, tubular shaft reducing motor (19) is connected in the vertical symmetry central lower of described pan of a steelyard (15), and described reducing motor (19) is passed to impeller (18) to power, and it is turned round around vertical center axis.
8. flyash weighing balance according to claim 5 is characterized in that, described Control System of Microcomputer comprises flow testing division and flow control section, and described flow testing division detects flow value; Described flow control section is made of its output function value pid control circuit.
9. flyash weighing balance according to claim 5 is characterized in that, described Control System of Microcomputer is made of the FUC-276 microcomputerized controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267885 CN202694054U (en) | 2012-06-07 | 2012-06-07 | Metering scale for coal ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267885 CN202694054U (en) | 2012-06-07 | 2012-06-07 | Metering scale for coal ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694054U true CN202694054U (en) | 2013-01-23 |
Family
ID=47549642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220267885 Withdrawn - After Issue CN202694054U (en) | 2012-06-07 | 2012-06-07 | Metering scale for coal ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681470A (en) * | 2012-06-07 | 2012-09-19 | 北京燕山粉研精机有限公司 | Coal ash weighing scale |
| CN105020720A (en) * | 2015-07-06 | 2015-11-04 | 北京燕山粉研精机有限公司 | Metering and conveying device utilizing kiln head burner of cement rotary kiln to treat living garbage |
-
2012
- 2012-06-07 CN CN 201220267885 patent/CN202694054U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681470A (en) * | 2012-06-07 | 2012-09-19 | 北京燕山粉研精机有限公司 | Coal ash weighing scale |
| CN102681470B (en) * | 2012-06-07 | 2013-12-04 | 北京燕山粉研精机有限公司 | Coal ash weighing scale |
| CN105020720A (en) * | 2015-07-06 | 2015-11-04 | 北京燕山粉研精机有限公司 | Metering and conveying device utilizing kiln head burner of cement rotary kiln to treat living garbage |
| CN105020720B (en) * | 2015-07-06 | 2017-07-28 | 北京燕山粉研精机有限公司 | The metering and conveying device of house refuse is handled using kiln head of rotary cement kiln burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20131204 |
|
| RGAV | Abandon patent right to avoid regrant |