CN204429680U - A kind of large-scale vibrating screen for coal classification - Google Patents
A kind of large-scale vibrating screen for coal classification Download PDFInfo
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- CN204429680U CN204429680U CN201520013346.5U CN201520013346U CN204429680U CN 204429680 U CN204429680 U CN 204429680U CN 201520013346 U CN201520013346 U CN 201520013346U CN 204429680 U CN204429680 U CN 204429680U
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Abstract
For a large-scale vibrating screen for coal classification, belong to vibratory sieve equipment technical field, for improving the strength and stiffness of the large-scale vibrating screen of coal classification.The utility model strengthens the parts such as angle steel, stiffener by reasonable Arrangement on screen box makes each parts of screen box form a kind of spatial networks redundant structure of force-closed formula.Screen(ing) machine structure of the present utility model has the advantages such as intensity is high, rigidity large, sieve plate long service life, under equal mass of vibration, the strength and stiffness of screen box can improve 1.3 ~ 1.5 times, can reduce the mass of vibration 20% ~ 30% of screen(ing) machine simultaneously, are conducive to the graded operation processing bulk coal; The sieve aperture of sieve plate is opening heavy type structure, and is arranged to three-dimensional cantilever beam state, is conducive to the loose sieve of material; Screen(ing) machine adopts modular box vibrator exciting, according to the model of screen(ing) machine and the size of box exciting force of exciter, selects the quantity of suitable vibrator, is conducive to maximization and the seriation development of screen(ing) machine.
Description
Technical field
The utility model relates to a kind of strength and stiffness compared with the large-scale vibrating screen of High Availabitity in coal classification, belongs to vibratory sieve equipment technical field.
Background technology
At present, for coal screening vibratory sieve gradually to maximization, super-hugeization future development, disposal ability is that the market demand of the large-scale classifying screen of upper kiloton per hour is more and more large.The width of vibratory sieve is the key factor determining disposal ability, therefore, says in some sense, the maximization of vibratory sieve i.e. the maximization of screen(ing) machine width.From mechanical knowledge, screen(ing) machine width doubles, and the parts dynamic stress operationally such as screen(ing) machine crossbeam, side plate, driving beam will increase several times, and therefore, the strength and stiffness of maximization to screen(ing) machine of vibratory sieve are had higher requirement.But, at present at coal industry, large-scale classifying screen for the classification of bulk coal causes service life shorter because of the reason of screen(ing) machine structural strength and rigidity, the problems such as side plate cracking, crossbeam fracture occur often, plate wear problem is abnormal outstanding, and sieve plate causes screen(ing) machine screening efficiency and disposal ability to decline also ubiquity because of feed blocking sieve aperture.
China Patent No. CN1446642A discloses a kind of synchronous large-scale vibrating screen of redundancy meshwork beams excitation, the requirement of many girders according to the structure of vibratory sieve, the configuration of exciting force and vibrating direction angle of this screen(ing) machine, be distributed in indeterminate gripper shoe, form a large rigidity excitation beam of vibration.The contribution of this utility model is, screen box lateral stiffness increases greatly.But sieve box side plate rigidity is relatively low, screen(ing) machine easily breaks down from the position that rigidity is weak; Redundant structure is too complicated, is unfavorable for the maximization of screen(ing) machine, seriation development.Another China Patent No. CN101695694A discloses a kind of large vibration separation screen, and screen(ing) machine screen box arranges two side bar bodies and a main beam, is connected with turriform longeron between elasticity sieve plate and Guan Liang, and vibrator adopts eccentric shaft and eccentric free wheel structure.The contribution of this utility model is, screen box forms an arch bridge mechanics structure, and integral rigidity increases.But vibrator adopts eccentric shaft and eccentric free wheel structure, be unfavorable for the maximization of screen(ing) machine, seriation development.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of large-scale vibrating screen for coal classification, this large-scale vibrating screen can be used in granularity and is greater than the bulk coal of 100mm or the classification of similar materials, has the advantages such as intensity is high, rigidity large, sieve plate long service life.
The technical scheme solved the problems of the technologies described above:
For a large-scale vibrating screen for coal classification, it is by screen box, box vibrator, transmission device, bearing forms, and screen box is by side plate, lifting beam, buttress brace, drive beam, pan feeding beam, crossbeam, the parts composition space net structure such as sieve plate, its improvements are that side plate is by mainboard, front reinforcement angle steel, main stiffener, rear reinforcement angle steel, feeding end strengthens angle steel, lower reinforcement angle steel, crossbeam stiffener, connecting plate, discharge end strengthens angle steel, upper reinforcement angle steel composition, feeding end strengthens angle steel, lower reinforcement angle steel, discharge end strengthens angle steel, upper reinforcement angle steel is arranged in mainboard periphery, front reinforcement angle steel and rear reinforcement angle steel are arranged in the position of distance discharging port and pan feeding port 1/5 ~ 1/4 side plate length, main stiffener is arranged in the oblique lower position of box vibrator of side plate, the position that side plate is installed crossbeam adopts crossbeam stiffener by each crossbeam Flange joint together, all adopt connecting plate to link together between the above-mentioned adjacent each parts be arranged on side plate, all adopt together with Hooke rivet rivets between side plate with each parts and between each parts solid and reliablely.
The above-mentioned large-scale vibrating screen for coal classification, described sieve plate is the sieve aperture adopting casting method to be made is opening wear-resisting heavy sieve plate, and sieve seam width is 1/5 ~ 1/2 with the ratio of sieve gap, and plate thickness is 20 ~ 60mm.
The above-mentioned large-scale vibrating screen for coal classification, described sieve plate one end sieve plate that two rows are bolted on crossbeam is installed on sketch plate, the other end is in free state, and on sieve plate installation sketch plate, crossbeam protection liner plate is installed, free end along one piece of sieve plate in the adjacent two pieces of sieve plates in front and back of screen(ing) machine length direction is concordant with the stiff end of another block sieve plate or exceed 30 ~ 50mm, in the vertical direction, the difference in height in adjacent two pieces of sieve plate faces is 80 ~ 150mm, according to the character being sized material, the inclination angle of each row's sieve plate is an angle with unification, or 2 ~ 4 row's sieve plates form an inclination angle section, the inclination angle of each section of sieve plate increases from discharge end gradually to feeding end, scope is 5o ~ 30o.
The above-mentioned large-scale vibrating screen for coal classification, described box vibrator is arranged on the driving beam on screen box, width is that the screen(ing) machine of 3.0 ~ 4.0m adopts 2 group chamber type vibrators to be cascaded exciting, width is that the screen(ing) machine of 4.0 ~ 5.0m adopts 3 ~ 4 group chamber type vibrators to be cascaded exciting, and the screen(ing) machine that width is greater than 5m adopts 4 ~ 6 groups of vibrators to be cascaded exciting.
Usefulness of the present utility model is:
The utility model strengthens the parts such as angle steel, stiffener by reasonable Arrangement on screen box makes each parts of screen box form a kind of spatial networks redundant structure of force-closed formula.Screen(ing) machine structure of the present utility model has the advantages such as intensity is high, rigidity large, sieve plate long service life, under equal mass of vibration, this structure has higher strength and stiffness, the strength and stiffness of screen box can improve 1.3 ~ 1.5 times, the mass of vibration 20% ~ 30% of screen(ing) machine can be reduced simultaneously, be conducive to the graded operation processing bulk coal; It is opening heavy type structure that the casting method that adopts sieve plate is processed into sieve aperture, and is arranged to three-dimensional cantilever beam state, is conducive to the loose sieve of material; Screen(ing) machine adopts modular box vibrator exciting, according to the model of screen(ing) machine and the size of box exciting force of exciter, selects the quantity of suitable vibrator, is conducive to maximization and the seriation development of screen(ing) machine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of screen box;
Fig. 3 is the structural representation of side plate;
Fig. 4 is the structural representation of sieve plate;
Fig. 5 is main stiffener schematic cross-section;
Fig. 6 is crossbeam stiffener schematic cross-section;
Fig. 7 is the scheme of installation of sieve plate.
In figure, mark is as follows: screen box 1, box vibrator 2, transmission device 3, bearing 4, side plate 5, lifting beam 6, driving beam 7, buttress brace 8, pan feeding beam 9, crossbeam 10, sieve plate 11, mainboard 12, front reinforcement angle steel 13, main stiffener 14, rear reinforcement angle steel 15, feeding end strengthen angle steel 16, lower reinforcement angle steel 17, crossbeam stiffener 18, connecting plate 19, discharge end reinforcement angle steel 20, upper reinforcement angle steel 21, sieve plate installation sketch plate 22, crossbeam protection liner plate 23.
Detailed description of the invention
The utility model is made up of screen box 1, box vibrator 2, transmission device 3, bearing 4.
Fig. 1 shows, and screen box 1 forms space net structure by the parts such as side plate 5, lifting beam 6, driving beam 7, buttress brace 8, pan feeding beam 9, crossbeam 10, sieve plate 11.
Fig. 2,3 displays, side plate 5 strengthens angle steel 16, lower reinforcement angle steel 17, crossbeam stiffener 18, connecting plate 19, discharge end reinforcement angle steel 20, upper composition such as reinforcement angle steel 21 grade by mainboard 12, front reinforcement angle steel 13, main stiffener 14, rear reinforcement angle steel 15, feeding end.Mainboard 12 adopts monoblock steel plate cutting.Feeding end strengthens angle steel 16, lower reinforcement angle steel 17, discharge end reinforcement angle steel 20, and upper reinforcement angle steel 21 etc. is arranged in mainboard 12 periphery, to increase the intensity of mainboard 12 periphery and to prevent it from ftractureing.Front reinforcement angle steel 13 and rear reinforcement angle steel 15 are arranged in the position of distance discharging port and pan feeding port 1/5 ~ 1/4 side plate length.The main stiffener of the solid with special cross-section structure 14 be converted into steel plate is arranged in the box vibrator 2 tiltedly lower position of side plate 5, in order to strengthen the strength and stiffness of side plate 5 transverse direction.The crossbeam stiffener 18 of the similar channel-section steel that the position that side plate 5 is installed crossbeam 10 adopts steel plate to be converted into, by each crossbeam Flange joint together.All adopt connecting plate 19 to link together between the above-mentioned adjacent each parts be arranged on side plate 5, all adopt together with Hooke rivet rivets between side plate 5 with each parts and between each parts solid and reliablely.
Fig. 4 shows, and sieve plate 11 is the sieve aperture adopting casting method to be made is opening wear-resisting heavy sieve plate, and sieve seam width f is 1/5 ~ 1/2 with the ratio of sieve gap g.The sieve plate of sieve plate 11 one end on the crossbeam 10 of screen box 1 is installed on sketch plate 22, and the other end is in free state, and arranges crossbeam protection liner plate 23 on sieve plate installation sketch plate 22, causes excessive shock to sieve sill 10 to prevent bulk materials.According to the character being sized material, the inclination angle of each row's sieve plate can be unified to be an angle; Or 2 ~ 4 row's sieve plates form an inclination angle section, and the inclination angle of each section of sieve plate increases from discharge end gradually to feeding end, and scope is 5o ~ 30o.
Fig. 5 shows, and the sectional dimension a of main stiffener 14 is 80 ~ 200mm, b is that 100 ~ 200mm, c determine according to screen(ing) machine model.
Fig. 6 shows, and the sectional dimension d of crossbeam stiffener 18 is that 70 ~ 150mm, e determine according to screen(ing) machine model.
Box vibrator 2 of the present utility model is arranged on the driving beam 7 on screen box 1, and under the exciting force effect that box vibrator 2 produces, screen box 1 does reciprocating linear along the direction angled with horizontal plane and vibrates with the screening operation realized material.According to the model of screen(ing) machine and the size of box vibrator 2 exciting force, 2 groups or many group chamber types vibrator 2 can be selected to be cascaded exciting, width is that the screen(ing) machine of 3.0 ~ 4.0m adopts 2 group chamber type vibrators 2 to be cascaded exciting, width is that the screen(ing) machine of 4.0 ~ 5.0m adopts 3 ~ 4 group chamber type vibrators 2 to be cascaded exciting, and the screen(ing) machine that width is greater than 5m adopts 4 ~ 6 groups of vibrators 2 to be cascaded exciting.
Claims (4)
1., for a large-scale vibrating screen for coal classification, it is by screen box (1), box vibrator (2), transmission device (3), bearing (4) forms, and screen box (1) is by side plate (5), lifting beam (6), buttress brace (8), drive beam (7), pan feeding beam (9), crossbeam (10), the parts composition space net structure such as sieve plate (11), is characterized in that: side plate (5) is by mainboard (12), front reinforcement angle steel (13), main stiffener (14), rear reinforcement angle steel (15), feeding end strengthens angle steel (16), lower reinforcement angle steel (17), crossbeam stiffener (18), connecting plate (19), discharge end strengthens angle steel (20), upper reinforcement angle steel (21) composition, feeding end strengthens angle steel (16), lower reinforcement angle steel (17), discharge end strengthens angle steel (20), upper reinforcement angle steel (21) is arranged in mainboard (12) periphery, front reinforcement angle steel (13) and rear reinforcement angle steel (15) are arranged in the position of distance discharging port and pan feeding port 1/5 ~ 1/4 side plate length, main stiffener (14) is arranged in box vibrator (1) the tiltedly lower position of side plate (5), the position that side plate (5) is installed crossbeam (10) adopts crossbeam stiffener (18) by each crossbeam Flange joint together, all adopt connecting plate (19) to link together between the above-mentioned adjacent each parts be arranged on side plate (5), side plate (5) with all adopt Hooke rivet solid and reliable between each parts and between each parts rivet together with.
2. the large-scale vibrating screen for coal classification according to claim 1, it is characterized in that: described sieve plate (11) is the sieve aperture adopting casting method to be made is opening wear-resisting heavy sieve plate, sieve seam width is 1/5 ~ 1/2 with the ratio of sieve gap, and sieve plate (11) thickness is 20 ~ 60mm.
3. the large-scale vibrating screen for coal classification according to claim 1 and 2, it is characterized in that: described sieve plate (11) one end sieve plate that two rows are bolted on crossbeam (10) is installed on sketch plate (22), the other end is in free state, and at sieve plate, sketch plate (22) upper installation crossbeam protection liner plate (23) is installed, free end along one piece of sieve plate (11) in the adjacent two pieces of sieve plates (11) in front and back of screen(ing) machine length direction is concordant with the stiff end of another block sieve plate (11) or exceed 30 ~ 50mm, in the vertical direction, the difference in height in adjacent two pieces of sieve plate faces is 80 ~ 150mm, according to the character being sized material, the inclination angle of each row's sieve plate (11) is an angle with unification, or 2 ~ 4 row's sieve plate (11) compositions inclination angle section, the inclination angle of each section of sieve plate (11) increases from discharge end gradually to feeding end, scope is 5o ~ 30o.
4. the large-scale vibrating screen for coal classification according to claim 3, it is characterized in that: described box vibrator (2) is arranged on the driving beam (7) on screen box (1), width is that the screen(ing) machine of 3.0 ~ 4.0m adopts 2 group chamber type vibrators (2) to be cascaded exciting, width is that the screen(ing) machine of 4.0 ~ 5.0m adopts 3 ~ 4 group chamber type vibrators (2) to be cascaded exciting, and the screen(ing) machine that width is greater than 5m adopts 4 ~ 6 group chamber type vibrators (2) to be cascaded exciting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013346.5U CN204429680U (en) | 2015-01-09 | 2015-01-09 | A kind of large-scale vibrating screen for coal classification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013346.5U CN204429680U (en) | 2015-01-09 | 2015-01-09 | A kind of large-scale vibrating screen for coal classification |
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| CN204429680U true CN204429680U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520013346.5U Expired - Fee Related CN204429680U (en) | 2015-01-09 | 2015-01-09 | A kind of large-scale vibrating screen for coal classification |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550011A (en) * | 2015-01-09 | 2015-04-29 | 天地（唐山）矿业科技有限公司 | Large vibration screen for grading coal carbon |
| CN108993873A (en) * | 2018-09-05 | 2018-12-14 | 唐山陆凯科技有限公司 | A kind of stock grading large size banana screen of high intensity |
-
2015
- 2015-01-09 CN CN201520013346.5U patent/CN204429680U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550011A (en) * | 2015-01-09 | 2015-04-29 | 天地（唐山）矿业科技有限公司 | Large vibration screen for grading coal carbon |
| CN108993873A (en) * | 2018-09-05 | 2018-12-14 | 唐山陆凯科技有限公司 | A kind of stock grading large size banana screen of high intensity |
| CN108993873B (en) * | 2018-09-05 | 2024-01-26 | 唐山陆凯科技有限公司 | High-strength material grading large banana screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20170109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |