CN215031144U - Vibration grading impurity removal vibrating screen - Google Patents
Vibration grading impurity removal vibrating screen Download PDFInfo
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- CN215031144U CN215031144U CN202120823629.1U CN202120823629U CN215031144U CN 215031144 U CN215031144 U CN 215031144U CN 202120823629 U CN202120823629 U CN 202120823629U CN 215031144 U CN215031144 U CN 215031144U
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- vibrating screen
- impurity removal
- grading
- sieve
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- 239000012535 impurity Substances 0.000 title claims abstract description 52
- 239000003245 coal Substances 0.000 claims abstract description 34
- 238000012216 screening Methods 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 238000007664 blowing Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model provides a vibration grading edulcoration shale shaker, it includes sieve, cantilever bar, sieve supporting beam, tuyere and vibration exciter, the sieve is the ladder sieve, and the end of each grade of sieve all disposes several cantilever bars, and the clearance of cantilever bar is confirmed according to the hierarchical requirement of raw coal; the cantilever rod and the plane of the sieve plate have a reverse inclination angle; an air blower is arranged below the vibration grading impurity removal vibrating screen, and a blast port is arranged on a bed body of the vibration grading impurity removal vibrating screen. The vibration classification impurity removal vibrating screen integrates vibration classification and impurity removal functions, and impurities are pre-treated in the classification process of raw coal; an improved sieve plate is adopted, a cantilever rod is arranged at the tail end of the sieve plate, raw coal is thrown up when passing through the cantilever rod, and impurities with light specific gravity fall at a slower speed after being thrown up and are gradually distributed on the upper layer of the raw coal; the vibrating screen for the automatic grading and impurity removal realizes automatic impurity removal of raw coal.
Description
Technical Field
The utility model belongs to the technical field of the vibration is selected separately, a vibration classification edulcoration shale shaker is related to.
Background
The classifying screen is a mechanical device for classifying materials by utilizing vibration generated by a vibration motor and a spring, and is mainly used for the mineral separation flow in mining. The grading sieve is widely applied to screening and grading of raw materials and finished products in various industries such as grain, food, chemical industry, sugar manufacturing, mines, coal mines, metallurgy, paper making and the like. The classifying screen is generally composed of a screen box, a vibration motor, a spring and the like.
The classifying screen is widely applied to raw coal sorting, and most of the classifying screen is applied to primary sorting of raw coal. As the raw coal is inevitably mixed with impurities such as anchor rods, meshes, iron wires, wood, plastics and the like, the impurities of the raw coal are required to be removed in order to prevent the impurities from damaging subsequent process equipment. However, the impurities cannot be sorted out by the vibration principle, the impurities are removed by a manual sorting mode in the existing coal preparation plant, a manual sorting belt is arranged behind a table classifying screen, and an operator sorts out the impurities by using a hook rake. The mode has low efficiency, poor labor environment of workers and potential safety hazard, and an automatic impurity removal mode is urgently needed.
SUMMERY OF THE UTILITY MODEL
Based on the needs of reality and production practice, the applicant provides a vibration grading impurity removal vibrating screen through long-term research.
According to the technical scheme of the utility model, a vibration grading and impurity removing vibrating screen is provided, which comprises a screen plate, cantilever rods, a screen plate supporting beam, a blast port and a vibration exciter, wherein the screen plate is a stepped screen plate, the tail end of each grade of screen plate is provided with a plurality of cantilever rods, and the gaps of the cantilever rods are determined according to the grading requirement of raw coal; the cantilever rod and the plane of the sieve plate have a reverse inclination angle; an air blower is arranged below the vibration grading impurity removal vibrating screen, and a blast port is arranged on a bed body of the vibration grading impurity removal vibrating screen.
Wherein, the cantilever rod is an elastic or rigid rod; the blast ports are arranged at two ends of the sieve plate supporting beam. The flow rate and pressure of the blast of the tuyere are adjustable.
Preferably, the vibration exciters are arranged on two sides of the sieve plate and provide exciting force for vibrating the grading impurity removal vibrating screen. The vibration of the vibration grading impurity removal vibrating screen is linear vibration excitation or circular vibration excitation or elliptic vibration excitation.
And further, the air vibration isolation device supported by an included angle is used in the vibration grading impurity removal vibrating screen. The air vibration isolation device supported by the included angle comprises an upper supporting seat, an air spring, a buffer tank and a lower supporting seat, wherein the upper supporting seat is used for supporting the vibrating screen screening machine, the lower supporting seat is fixedly contacted with a supporting body of the vibrating screen screening machine, and the air spring is arranged between the upper supporting seat and the lower supporting seat. Preferably, the air spring is a V-shaped included angle spring.
Compared with the prior art, the utility model discloses vibration classification edulcoration shale shaker has realized the automatic edulcoration of raw coal, and it has following beneficial effect:
1. the method has the advantages that two functions of vibration classification and impurity removal are integrated, and impurities are pre-treated in the classification process of raw coal;
2. an improved sieve plate is adopted, a cantilever rod is arranged at the tail end of the sieve plate, raw coal is thrown up when passing through the cantilever rod, and impurities with light specific gravity fall at a slower speed after being thrown up and are gradually distributed on the upper layer of the raw coal;
3. blast air is introduced, and impurities and coal blocks are more easily separated under the action of wind power when raw coal is thrown;
4. according to the characteristics of the impurities and the difference of the inclination angle of the screen, the flow rate and the pressure of blast air can be adjusted;
5. the enthalpy value of blast is higher, and the moisture content of raw coal can be reduced by 1-2%.
Drawings
Figure 1 is the structural schematic diagram according to the utility model discloses a vibration classification edulcoration shale shaker.
FIG. 2 is a schematic structural diagram of an angle supported air vibration isolation device used in a vibratory classifying and impurity removing vibrating screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.
The utility model provides a vibration grading edulcoration shale shaker, as shown in figure 1, it includes sieve 1, cantilever bar 2, a sieve supporting beam 3, tuyere 4 and vibration exciter 5, wherein:
the sieve plate 1 is used as a material bearing bed layer, forms a material layering space together with a sieve body, has the functions of controlling the material flow speed and the sieving speed, is provided with sieve pores, can be round, square, strip-shaped, rhombic and the like, allows materials smaller than the sieve pores to penetrate through the sieve plate to form undersize, and allows materials larger than the sieve pores to form oversize, so that the material classification is realized;
the cantilever rod 2 is used for increasing the dropping angle and the dropping height of the materials, in the utility model, the raw coal and the sundries are dropped together, because the sundries have smaller specific gravity than the raw coal, the dropping speed of the thrown sundries is slow, and the sundries can be gradually distributed above the raw coal after being thrown and dropped step by step, thereby realizing the primary treatment of the sundries;
the sieve plate supporting beam 3 is a supporting piece of the sieve plate and forms a sieve box with the left side plate and the right side plate of the sieve body, so that the integral rigidity is provided for the sieve box, and the safe operation of the sieve body is ensured;
the blast port 4 is an interface for blast air to enter the screen box, in the utility model, the blast air with certain pressure and temperature enters the screen box and is blown from the bottom to the top below the screen plate, thus improving the separation efficiency of sundries and raw coal;
the vibration exciter 5 is a vibration source of the classifying screen, so that the classifying screen obtains vibration quantity with a specific form and size, and the screen body realizes the sorting of materials by a vibration principle.
Preferably, the screen plate 1 is a stepped screen plate, the tail end of each stage of screen plate is provided with a plurality of cantilever rods, and the gaps of the cantilever rods are determined according to the grading requirements of raw coal; the cantilever rod and the plane of the sieve plate have a reverse inclination angle, when raw coal passes through the cantilever rod, coal blocks with small granularity fall off from a gap of the cantilever rod, and the coal blocks with large granularity and sundries are thrown up by the cantilever rod; an air blower is arranged below the vibration grading and impurity removing vibration screen, an air blowing port is arranged on a bed body of the vibration grading and impurity removing vibration screen, air blowing is introduced, and thrown coal blocks are separated from impurities by utilizing wind power; preferably, the blast ports are arranged at two ends of the sieve plate supporting beam, blast air can be introduced from flanges at two ends of the sieve plate supporting beam, and the flow rate and the pressure of the blast air can be adjusted according to the difference of the properties of impurities and the difference of the inclination angles of the screen. The cantilever rod may be a flexible or rigid rod. The vibration exciter is arranged on two sides of the sieve plate and provides an exciting force for vibrating the grading impurity removal vibrating screen; further, the exciting force of the classifying screen can be linear vibration or circular vibration or elliptical vibration. Furthermore, the air blower is used for blowing air by taking the air blower as a power source, has higher enthalpy value and certain moisture carrying capacity, and can transfer heat and mass with the coal bed, so that the water content of the raw coal can be reduced by 1-2%.
Further, as shown in fig. 2, the air vibration isolation device supported by the included angle used in the vibration grading and impurity removing vibrating screen is vibrated. The air vibration isolation device supported by the included angle comprises an upper support seat, an air spring, a buffer tank and a lower support seat, wherein the upper support seat is used for supporting the vibrating screen sieving machine, the lower support seat is fixedly contacted with a support body of the vibrating screen sieving machine, and the air spring is arranged between the upper support seat and the lower support seat; the air spring is a V-shaped included angle spring. Each air vibration isolation device supported by the included angle comprises three groups of air springs, wherein 2 groups of included angle supporting springs and 1 group of horizontal supporting springs are arranged in the air springs, 2 groups of included angle supporting springs are supported on the side surface of the upper supporting seat, 2 groups of included angle supporting springs form an acute angle with each other, 1 group of horizontal supporting springs are used as main supporting springs of the upper supporting seat, and 1 group of horizontal supporting springs are vertically supported between the upper supporting seat and the lower supporting seat; the buffer tank is preferably a compressed air buffer tank, the lower part of each group of air springs is provided with an independent compressed air buffer tank, and the compressed air buffer tanks are used for stabilizing and supplementing air for the air springs; the air spring is connected with the upper and lower supporting seats by bolts.
The vibration grading impurity removal vibrating screen integrates two functions of vibration grading and impurity removal, and realizes pretreatment of impurities while not affecting grading efficiency and treatment capacity; the full mechanization, no manual intervention is needed when in normal operation, the labor efficiency is improved, and the labor intensity is reduced. The blast is introduced, and the characteristics of high enthalpy value of the blast are utilized to reduce the moisture of the raw coal by 1 to 2 percent, improve the quality of the raw coal and reduce the energy consumption of equipment.
The above description is only for the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a vibration classification edulcoration shale shaker which characterized in that: the coal mine screening device comprises a screening plate (1), cantilever rods (2), a screening plate supporting beam (3), a blast port (4) and a vibration exciter (5), wherein the screening plate (1) is a stepped screening plate, the tail end of each stage of screening plate is provided with a plurality of cantilever rods (2), and gaps of the cantilever rods (2) are determined according to the grading requirements of raw coal; the cantilever rod (2) and the plane of the sieve plate have a reverse inclination angle; an air blower is arranged below the vibration grading impurity removal vibrating screen, and a blast port (4) is arranged on a bed body of the vibration grading impurity removal vibrating screen.
2. The vibratory classifying and impurity removing vibrating screen as claimed in claim 1, wherein: the cantilever rod (2) adopts an elastic or rigid rod.
3. The vibratory classifying and impurity removing vibrating screen as claimed in claim 2, wherein: the blast ports (4) are arranged at two ends of the sieve plate supporting beam.
4. The vibratory classifying and impurity removing vibrating screen as claimed in claim 3, wherein: the flow rate and the pressure of the blast nozzle (4) are adjustable.
5. The vibratory classifying and impurity removing vibrating screen as claimed in claim 1, wherein: the vibration exciter (5) is arranged on two sides of the sieve plate and provides an exciting force for vibrating the grading impurity removal vibrating screen.
6. The vibratory classifying and impurity removing vibrating screen as claimed in claim 5, wherein: the vibration of the vibration grading impurity removal vibrating screen is linear vibration excitation or circular vibration excitation or elliptic vibration excitation.
7. The vibratory classifying and impurity removing vibrating screen as claimed in claim 6, wherein: the air vibration isolation device is supported by an included angle used in the vibration grading impurity removal vibrating screen.
8. The vibratory classifying and impurity removing vibrating screen as claimed in claim 7, wherein: the air vibration isolation device supported by the included angle comprises an upper supporting seat, an air spring, a buffer tank and a lower supporting seat, wherein the upper supporting seat is used for supporting the vibrating screen screening machine, the lower supporting seat is fixedly contacted with a supporting body of the vibrating screen screening machine, and the air spring is arranged between the upper supporting seat and the lower supporting seat.
9. The vibratory classifying and impurity removing vibrating screen as claimed in claim 8, wherein: the air spring is a V-shaped included angle spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823629.1U CN215031144U (en) | 2021-04-21 | 2021-04-21 | Vibration grading impurity removal vibrating screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120823629.1U CN215031144U (en) | 2021-04-21 | 2021-04-21 | Vibration grading impurity removal vibrating screen |
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| Publication Number | Publication Date |
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| CN215031144U true CN215031144U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120823629.1U Active CN215031144U (en) | 2021-04-21 | 2021-04-21 | Vibration grading impurity removal vibrating screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245059A (en) * | 2021-05-11 | 2021-08-13 | 伯特利(山东)工业设备有限公司 | Grading impurity removal and gangue pre-discharging system and method for coal preparation plant |
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2021
- 2021-04-21 CN CN202120823629.1U patent/CN215031144U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245059A (en) * | 2021-05-11 | 2021-08-13 | 伯特利(山东)工业设备有限公司 | Grading impurity removal and gangue pre-discharging system and method for coal preparation plant |
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