CN106975593A - A kind of roller bearing coal screen - Google Patents
A kind of roller bearing coal screen Download PDFInfo
- Publication number
- CN106975593A CN106975593A CN201710362506.0A CN201710362506A CN106975593A CN 106975593 A CN106975593 A CN 106975593A CN 201710362506 A CN201710362506 A CN 201710362506A CN 106975593 A CN106975593 A CN 106975593A
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- CN
- China
- Prior art keywords
- coal
- axis
- rolling
- roller bearing
- screen
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention provides a kind of roller bearing coal screen.The roller bearing coal screen includes being provided with a coal feed point above body, baffle plate, screen axis assembly and electric pushrod, the body, and lower section is sequentially provided with bypass outlet, granule coal export and bulk coal export, and bypass outlet is relative with coal feed point position；The two side that baffle plate is located at below the coal feed point with body in body is hinged, and the electric pushrod is connected in outer body with side pin joint bar thick stick；The screen axis assembly includes multiple axis of rolling, and multiple axis of rolling are arranged in step inclined formula successively from the end of the baffle plate, and each axis of rolling is equipped with a motor and individually controlled.Compared with correlation technique, the compass screen surface for the roller bearing coal screen that the present invention is provided has certain inclination angle, does not occur the phenomenon that coal charge blocks, burns out the normal coal fired power generation of the influence such as motor in the case of big load, continuous operation.
Description
Technical field
The present invention relates to Coal Mechanical technical field, more particularly to a kind of roller bearing coal screen.
Background technology
Currently, with the development of the social economy, the power consumption of China constantly increases, therefore, power plant must improve generating
Amount, this, which means that, needs more coals that burn, and raw coal passes through a series of process before boiler is entered, and becomes coal-forming face, with
This improves the utilization rate of coal.Coal Mechanical is essential equipment in system.Boiler milling system coal pulverizer requires raw coal
Granularity often have the coal cinder of larger granularity no more than 50mm, but in the raw coal of actual use, so raw coal is entering coal-grinding
It must be crushed before machine.To improve the crushing efficiency of coal breaker and saving energy consumption, before raw coal is broken, first to be sieved, be accorded with
The coal that coal pulverizer requires granularity is closed, directly ribbon conveyer is sent into through roller bearing coal screen, the coal cinder of larger granularity then enters broken coal
Machine is crushed.Among these links, the important role of coal screen undertaker, its unit interval screening capacity, direct shadow
Ring the supply of burning coal.
The product category of roller bearing coal screen currently on the market is a lot, but the sieving capacity of unit interval is all limited, shadow
The supply of burning coal is rung, accordingly, it would be desirable to design the larger roller bearing coal screen of sieving capacity.In the situation that other conditions are constant
Under, screen slot width influences very big to screen rate.Grating width is certain, and screen slot is wider, and percent opening is bigger, and coal sieves probability and got over thoroughly
It is high.When screen slot is increased, although screen rate is improved, but the load of coal pulverizer and coarse grain slime recovery equipment is also increased simultaneously.
Therefore, it is necessary to which providing a kind of new roller bearing coal screen solves above technical problem.
The content of the invention
The present invention provide it is a kind of increase roller picker effective sieve area and increase drum screen generative capacity roller bearing screen coal
Machine.
It is an object of the invention to provide a kind of roller bearing coal screen, including body, baffle plate, screen axis assembly and electric pushrod,
The body is box-structure, and its top is provided with a coal feed point, and lower section is sequentially provided with bypass outlet, granule coal export and coarse coal
Outlet, the bypass outlet is relative with coal feed point position；The baffle plate is located at below the coal feed point in the body, and with
The two side of body is hinged, and the electric pushrod is connected in the outer body with side pin joint bar thick stick, the electric pushrod
Baffle controls are promoted to enter coal flow direction；Described screen axis assembly one end is connected to the end of the baffle plate, and the other end is to bulk coal export
Extension, the screen axis assembly includes multiple axis of rolling, and multiple axis of rolling incline in ladder successively from the end of the baffle plate
Inclined is arranged, and each axis of rolling is equipped with a motor and individually controlled.
It is preferred that, the axis of rolling includes multiple spaced sieves, and the sieve of the every two adjacent axis of rolling, which is interlocked, to be set
Put, be consequently formed rectangular sieve aperture.
It is preferred that, the line of centres and the level of multiple axis of rolling cross sections are in 10 ° of angles.
It is preferred that, the quantity of the axis of rolling is ten.
It is preferred that, air switch overload protection arrangement is housed on the Motor Control loop, when axis of rolling stall, from
Dynamic alarm, and cut off motor power.
It is preferred that, the baffle plate material is ZGMn13, and veneer thickness is 12mm.
It is preferred that, the motor is Z68M112MB4 decelerators, and its speed reducing ratio is 1: 6.
Compared with correlation technique, the roller bearing machine of screening coal that the present invention is provided has following beneficial aspects：
First, multiple rolling axial rakes are 10 degree, to change axis of rolling stressing conditions, improve screening efficiency；
2nd, axis of rolling two ends are equipped with bearing support, can bear the impulsive force of coal cinder that falls from coal conduit and each sieve
Coal cinder or other foreign matters among the operation of coal axle between each axle extrude mutually the power of generation, place and roll shaft distortion, extension is used
Life-span；
3rd, the axis of rolling is provided with overload protection arrangement, in the case of blocking occurs for the axis of rolling, realizes overload protection, effectively
Device damage is avoided, protection well and the effect of maintained equipment is served.
Brief description of the drawings
The structural representation of the removing body side plate for the roller bearing coal screen that Fig. 1 provides for the present invention；
Fig. 2 is the top view for removing body cover plate in Fig. 1.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the embodiment in the present invention and the feature in embodiment can be mutually combined.For sake of convenience, hereinafter as occurred
" on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with accompanying drawing in itself is consistent, does not limit structure
It is set for using.
Such as Fig. 1, as indicated with 2.The roller bearing coal screen includes body 1, baffle plate 2, screen axis assembly 3, electric pushrod 4 and electronic
Machine 5.
The body 1 is box-structure, and its top is provided with a coal feed point 11, and lower section is sequentially provided with bypass outlet 12, granule
Coal export 13 and bulk coal export 14, the bypass outlet 12 are relative with the position of coal feed point 11, i.e., be oppositely arranged up and down.Described
The bottom of body 1 is provided with pressure sensor 15, and the pressure sensor 15 is connected with the communication of electric pushrod 4.
The baffle plate 2 in the body 1, and positioned at it is described enter coal 11 lower section, i.e. baffle plate 2 is arranged at bypass outlet
Between 12 and coal feed point 11, the both sides of one end are articulated with the side wall of body 1, and its two pin joint is respectively 16,16 ', the other end
Its positive and negative rotation is promoted by electric pushrod 4, to control to flow into coal.The electric pushrod 4 the outside of the body 1 with
The bar thick stick of pin joint 16 is connected.I.e. electric pushrod 4 is connected by a lever 41 with 16 pin joints of baffle plate 2, to realize electric pushrod 4
Flexible controlling baffle plate 2 counterclockwise or turn clockwise.The material of the baffle plate 2 is ZGMn13, and veneer thickness is 12mm.
Described one end of screen axis assembly 3 is connected to the end of the baffle plate 2, and the other end extends to bulk coal export 14, described
Screen axis assembly 3 includes multiple axis of rolling 31, and multiple axis of rolling 31 are in step inclined formula successively from the end of the baffle plate 2
Arrangement, i.e., the line of centres of multiple cross sections of the axis of rolling 31, in 10 ° of angles, lifts coal screen ability to work with level, big load,
Do not occur the phenomenon that coal charge blocks, burns out the normal coal fired power generation of the influence such as motor 5 in the case of continuous operation.
The electric pushrod 4 is bounced back, and the gear of baffle plate 2 is connected between the coal feed point 11 and bypass outlet 12, coal-fired from entering coal
Mouth 11 is entered in screen axis assembly 3.The startup optimization of the axis of rolling 31, the fire coal of variable grain is sized, and small particle size raw coal is by institute
State granule coal export 13 to fall, bulk raw coal is fallen by the bulk coal export 14, and enter next stage process.When falling coal amount
It is larger, when exceeding well over coal screen ability to work, chute blockage will occur in body 1, the pressure sensor 15 senses that pressure reaches
During to preset value, induced signal is sent to electric pushrod 4, the electric pushrod 4 starts work, releasing baffle plate rotate counterclockwise is in
Plumbness, makes the coal that enters of coal feed point 11 directly be fallen from the bypass outlet 12, plays a part of protecting coal screen, and be easy to
Safeguard.
In the present embodiment, the quantity of the axis of rolling 31 is ten, compass screen surface width is increased to 1800mm, is rolled with increase
The mode of the effective sieve area of moving axis 31 increases its production capacity.
The axis of rolling 31 includes multiple spaced sieves 33, and the sieve 33 of the every two adjacent axis of rolling 31 is staggeredly set
Put, be consequently formed rectangular sieve aperture 32.The rectangle sieve aperture easily passes through the particle of strip or sheet.
Each axis of rolling 31 is equipped with the individually control of a motor 5, does not interfere with each other, improves the trouble free service of equipment
Coefficient.The motor 5 is Z68M112MB4 integral type decelerators, and its speed reducing ratio is 1: 6.The axis of rolling 31 is with screening coal
The two ends of machine connection are equipped with bearing 6, the position of the axis of rolling 31 is more fixed, also reduce the volume of equipment.It is described
The axis of rolling 31 and motor 5 are connected using elastic dowel pin shaft coupling 51, slowed down coal-fired impulsive force to the axis of rolling 31, are absorbed and vibrate
And compensation manufacture and the error for installing generation, further reduce influence of the deflection of the axis of rolling 31 to motor 5.In the elasticity
Nylon pin (non-label) is provided with pin coupler 51, when blocking situation occurs in screen axis assembly 3, nylon pin can be because of shearing
Power is excessive and disconnects, and realizes overload protection.
Air switch overload protection arrangement is housed in the control loop of motor 5, when 31 stall of the axis of rolling, automatic report
It is alert, and cut off motor power.
Compared with correlation technique, the roller bearing machine of screening coal that the present invention is provided has following beneficial aspects：
First, multiple rolling axial rakes are 10 degree, to change axis of rolling stressing conditions, improve screening efficiency；
2nd, axis of rolling two ends are equipped with bearing support, can bear the impulsive force of coal cinder that falls from coal conduit and each sieve
Coal cinder or other foreign matters among the operation of coal axle between each axle extrude mutually the power of generation, place and roll shaft distortion, extension is used
Life-span；
3rd, the axis of rolling is provided with overload protection arrangement, in the case of blocking occurs for the axis of rolling, realizes overload protection, effectively
Device damage is avoided, protection well and the effect of maintained equipment is served.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of roller bearing coal screen, it is characterised in that including body, baffle plate, screen axis assembly and electric pushrod, the body is case
Type structure, its top is provided with a coal feed point, and lower section is sequentially provided with bypass outlet, granule coal export and bulk coal export, the side
Way outlet is relative with coal feed point position；The baffle plate in the body be located at the coal feed point below, and with the both sides of body
Wall is hinged, and the electric pushrod is connected in the outer body with side pin joint bar thick stick, and the electric pushrod promotes baffle plate control
Make into coal flow direction；Described screen axis assembly one end is connected to the end of the baffle plate, and the other end extends to bulk coal export, the sieve
Axle assembly includes multiple axis of rolling, and multiple axis of rolling are arranged in step inclined formula successively from the end of the baffle plate, often
The individual axis of rolling is equipped with a motor and individually controlled.
2. roller bearing coal screen according to claim 1, it is characterised in that the axis of rolling includes multiple spaced sieves
Piece, the sieve of the every two adjacent axis of rolling is staggered, and is consequently formed rectangular sieve aperture.
3. roller bearing coal screen according to claim 1, it is characterised in that the line of centres and water of multiple axis of rolling cross sections
Flat is in 10 ° of angles.
4. roller bearing coal screen according to claim 1, it is characterised in that the quantity of the axis of rolling is ten.
5. roller bearing coal screen according to claim 1, it is characterised in that opened on the Motor Control loop equipped with air
Overload protection arrangement is closed, when axis of rolling stall, automatic alarm, and cut off motor power.
6. roller bearing coal screen according to claim 1, it is characterised in that the two ends that the axis of rolling is connected with coal screen are equal
Provided with bearing.
7. roller bearing coal screen according to claim 6, it is characterised in that the axis of rolling uses spring column pin with motor
Shaft coupling is connected, and nylon pin is provided with the elastic dowel pin shaft coupling.
8. roller bearing coal screen according to claim 1, it is characterised in that the baffle plate material is ZGMn13, veneer thickness
For 12mm.
9. roller bearing coal screen according to claim 1, it is characterised in that the motor is Z68M112MB4 deceleration electrics
Machine, its speed reducing ratio is 1: 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362506.0A CN106975593A (en) | 2017-05-13 | 2017-05-13 | A kind of roller bearing coal screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362506.0A CN106975593A (en) | 2017-05-13 | 2017-05-13 | A kind of roller bearing coal screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106975593A true CN106975593A (en) | 2017-07-25 |
Family
ID=59344058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362506.0A Pending CN106975593A (en) | 2017-05-13 | 2017-05-13 | A kind of roller bearing coal screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106975593A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649359A (en) * | 2017-11-10 | 2018-02-02 | 无锡宇能选煤机械厂 | Intelligent uniform distribution spiral screen coal picker |
| CN108168289A (en) * | 2017-12-21 | 2018-06-15 | 合肥三伍机械有限公司 | A kind of dryer is into grain device |
| CN108906623A (en) * | 2018-07-09 | 2018-11-30 | 河南工业大学 | A kind of road surface coarse aggregate flat-elongated particles automatic sorting device and method for separating |
| CN109894347A (en) * | 2019-03-15 | 2019-06-18 | 安徽华星选矿科技有限公司 | A kind of sine roller picker structural assembly and its intelligent anti-blocking monitoring system |
| CN110605233A (en) * | 2019-09-23 | 2019-12-24 | 福建泉工股份有限公司 | Building waste screening device and screening method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201722A (en) * | 1997-06-10 | 1998-12-16 | 高金娣 | Compounded sine screen |
| CN202028527U (en) * | 2011-04-22 | 2011-11-09 | 江油黄龙破碎输送设备制造有限公司 | Serial type roller screen |
| CN203304161U (en) * | 2013-06-22 | 2013-11-27 | 辽宁北方电力机械成套设备有限公司 | Roller screen |
| CN104249053A (en) * | 2013-06-25 | 2014-12-31 | 江苏富莱士机械有限公司 | Novel roller screen |
| CN204448501U (en) * | 2015-01-24 | 2015-07-08 | 林雪明 | Tilting roller picker |
-
2017
- 2017-05-13 CN CN201710362506.0A patent/CN106975593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201722A (en) * | 1997-06-10 | 1998-12-16 | 高金娣 | Compounded sine screen |
| CN202028527U (en) * | 2011-04-22 | 2011-11-09 | 江油黄龙破碎输送设备制造有限公司 | Serial type roller screen |
| CN203304161U (en) * | 2013-06-22 | 2013-11-27 | 辽宁北方电力机械成套设备有限公司 | Roller screen |
| CN104249053A (en) * | 2013-06-25 | 2014-12-31 | 江苏富莱士机械有限公司 | Novel roller screen |
| CN204448501U (en) * | 2015-01-24 | 2015-07-08 | 林雪明 | Tilting roller picker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649359A (en) * | 2017-11-10 | 2018-02-02 | 无锡宇能选煤机械厂 | Intelligent uniform distribution spiral screen coal picker |
| CN108168289A (en) * | 2017-12-21 | 2018-06-15 | 合肥三伍机械有限公司 | A kind of dryer is into grain device |
| CN108906623A (en) * | 2018-07-09 | 2018-11-30 | 河南工业大学 | A kind of road surface coarse aggregate flat-elongated particles automatic sorting device and method for separating |
| CN109894347A (en) * | 2019-03-15 | 2019-06-18 | 安徽华星选矿科技有限公司 | A kind of sine roller picker structural assembly and its intelligent anti-blocking monitoring system |
| CN109894347B (en) * | 2019-03-15 | 2021-03-16 | 安徽华星选矿科技有限公司 | Sinusoidal roller screen structure assembly and intelligent anti-blocking monitoring system thereof |
| CN110605233A (en) * | 2019-09-23 | 2019-12-24 | 福建泉工股份有限公司 | Building waste screening device and screening method |
| CN110605233B (en) * | 2019-09-23 | 2024-03-01 | 福建泉工股份有限公司 | Building waste screening device and screening method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |