CN210935933U - Negative pressure specific gravity separating screen - Google Patents
Negative pressure specific gravity separating screen Download PDFInfo
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- CN210935933U CN210935933U CN201921447197.8U CN201921447197U CN210935933U CN 210935933 U CN210935933 U CN 210935933U CN 201921447197 U CN201921447197 U CN 201921447197U CN 210935933 U CN210935933 U CN 210935933U
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- collecting cover
- sieve bed
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- 230000005484 gravity Effects 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012216 screening Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 41
- 241000353135 Psenopsis anomala Species 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
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Abstract
The utility model discloses a negative pressure specific gravity separation sieve, which comprises a base and a sieve bed, wherein the sieve bed is obliquely arranged above the base; a plate spring is arranged between the base and the side wall of the sieve bed; a discharge hole is formed in the side wall of the top end of the sieve bed in the length direction; a material returning port is arranged on the side wall of the bottom end of the sieve bed in the length direction; a wind collecting cover is arranged above the sieve bed, the side wall of the wind collecting cover is connected with the side wall of the base through a fixed beam, and flexible sealing cloth is arranged between the top edge of the sieve bed and the bottom edge of the wind collecting cover; the top of the air collecting cover is provided with a feeding hole and more than one fan; an air volume regulator is arranged in the air collecting cover. Has the advantages that: an up-draft air source is adopted to collect impurities in the screening process, so that dust pollution is reduced, the impurities are prevented from blocking screen holes on the screen bed, the ventilation rate of the screen bed is ensured, the energy consumption and the cleaning times of the screen bed are reduced, and the maintenance cost is reduced; meanwhile, impurities cannot be accumulated in the base, and the service life is prolonged; reduce energy consumption and improve working efficiency.
Description
The technical field is as follows:
the utility model relates to a proportion sorting facilities especially relates to a negative pressure proportion separation sieve.
Background art:
in the processing and production process of the melon seeds, a specific gravity sorting machine is used for separating full seeds from flat seeds (namely, the seeds are not existed, or the length of the seeds is less than one third of the whole seeds, the seeds are damaged by worms or the particles of the melon seed shells are damaged by worms, and incomplete melon seeds); the specific gravity sorting machine is a machine which adopts the principle of specific gravity segregation of fluidized granular materials and uses wind power and vibration to layer and separate the materials according to the specific gravity; the sieve bed surface has certain inclination in length, width two directions, we call vertical inclination and horizontal inclination respectively, and during operation, the sieve bed does reciprocating vibration under drive mechanism's effect, and the melon seed falls on the sieve bed, and under the effect of fan air current below, the seed on the mesa has carried out the layering, and heavier plump seed benevolence falls on the material lower floor, receives the effect seed of sieve bed vibration to move up along the direction of vibration. It can select qualified melon seeds according to the difference between melon seeds and impurities in the aspects of shape, size, specific gravity, surface property and aerodynamic property, etc. Meanwhile, the melon seeds can be selected and graded by using a melon seed weighing machine, and robust, full and strong-vitality seed particles are selected.
The specific gravity sorting machine used in the field of melon seed processing production is an air blowing type specific gravity machine, and has the following problems in the using process: 1. the air box of the blowing type specific gravity machine is positioned below the screen mesh, impurities in the air box can be accumulated, the accumulation is more, the damage to an air shaft is caused, and the service life of the specific gravity machine is shortened; 2. when in use, the screen is easy to be blocked, so that the ventilation rate is low, the screening effect is poor, and the energy consumption is high; the cleaning process is complicated, the maintenance cost is increased, and time and labor are wasted; 3. the air quantity distribution of the screen surface is not uniform, and due to the characteristics of the air blowing, the air blowing is carried out at the lower part of the screen surface, so that the air quantity distribution difference of the screen surface is very easy to cause, the materials on the screen surface cannot reach the suspension requirement in a balanced manner, and the cleaning effect is influenced; because the air quantity of the screen surface is not uniformly distributed, the air quantity to be provided is larger to ensure that the materials on the whole screen surface are provided with a certain suspension air speed from bottom to top; the air pressure in the blowing type specific gravity machine is greater than the external air pressure, and the blowing type specific gravity machine belongs to a positive pressure working state, so that dust generated in the equipment is easy to scatter into the ambient air, dust pollution is generated, the use environment is severe, and the health of workers is further influenced; 4. after the existing proportion machine breaks down, the maintenance is difficult, the maintenance efficiency is low, and the working efficiency is influenced; 5. the concrete base needs to be built by adopting the existing proportion machine, the cost is improved, and meanwhile, the working position cannot be moved, and the use is inconvenient.
The utility model has the following contents:
an object of the utility model is to provide a reduce dust pollution, reduce the energy consumption, improve work efficiency's negative pressure proportion separating screen.
The utility model discloses by following technical scheme implement: the negative pressure specific gravity separation sieve comprises a base and a sieve bed, wherein the sieve bed is obliquely arranged above the base; a plate spring is arranged between the base and the side wall of the sieve bed; a discharge hole is formed in the side wall of the top end of the sieve bed in the length direction; a material returning port is arranged on the side wall of the bottom end of the sieve bed in the length direction; the air collecting cover is arranged above the sieve bed, the side wall of the air collecting cover is connected with the side wall of the base through a fixed beam, and flexible sealing cloth is arranged between the top edge of the sieve bed and the bottom edge of the air collecting cover; the top of the air collecting cover is provided with a feeding hole and more than one fan; an air volume regulator is arranged in the air collecting cover.
Preferably, the air volume regulator comprises a fixed pore plate and an adjusting pore plate, the fixed pore plate is fixedly arranged at the bottom of the air collection cover, and more than one adjusting pore plate is arranged at the bottom of the fixed pore plate in a sliding manner; each adjusting hole plate is rotatably provided with an adjusting screw rod; one end of the adjusting screw penetrates through the shell of the air collecting cover and is arranged on the outer side of the air collecting cover, and the adjusting screw is in threaded connection with the shell of the air collecting cover.
The utility model has the advantages that: an up-draft air source is adopted to collect impurities in the screening process, so that dust pollution is reduced, the impurities are prevented from blocking screen holes on the screen bed, the ventilation rate of the screen bed is ensured, the energy consumption and the cleaning times of the screen bed are reduced, and the maintenance cost is reduced; meanwhile, impurities cannot be accumulated in the base, and the service life is prolonged; the air volume regulator in the wind collecting cover can adjust the suspension air speed of materials in different areas on the screen surface; the suspension wind speed of the materials on the screen surface from bottom to top is ensured, the screening effect is ensured, the energy consumption is reduced, and the working efficiency is improved.
Description of the drawings:
fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the entire structure of the wind-collecting cover.
Fig. 4 is a schematic view of the overall structure of the air volume adjuster.
Base 1, sieve bed 2, leaf spring 3, discharge gate 4, return feed opening 5, wind-collecting cover 6, fixed beam 7, flexible seal cloth 8, feed inlet 9, fan 10, air regulator 11, fixed orifice 12, regulation orifice 13, adjusting screw 14, sieve 15, fish scale 16
The specific implementation mode is as follows:
example (b): as shown in fig. 1 to 4, the negative pressure specific gravity separation sieve comprises a base 1 and a sieve bed 2, wherein the sieve bed 2 is obliquely arranged above the base 1; a plate spring 3 is arranged between the base 1 and the side wall of the sieve bed 2; a discharge port 4 is arranged on the side wall of the top end of the sieve bed 2 in the length direction; a material returning port 5 is arranged on the side wall of the bottom end of the sieve bed 2 in the length direction; an air collecting cover 6 is arranged above the sieve bed 2, the side wall of the air collecting cover 6 is connected with the side wall of the base 1 through a fixed beam 7, and flexible sealing cloth 8 is arranged between the top edge of the sieve bed 2 and the bottom edge of the air collecting cover 6; the top of the air collecting cover 6 is provided with a feeding hole 9 and five fans 10; the surface of the sieve bed 2 between the feed inlet 9 and the discharge outlet 4 is a sieve plate 15; the surface of the sieve bed 2 between the feed inlet 9 and the material returning opening 5 is provided with a fish scale plate 16, and the surface of the sieve bed 2 adopts the combination of a sieve plate 15 and the fish scale plate 16, so that the separation efficiency can be improved; the working principle of the sieve bed 2 is consistent with that of a sieve bed in a conventional weighing machine, and the sieve bed vibrates in a reciprocating manner under the driving of an eccentric motor; an air volume regulator 11 is arranged in the air collection cover 6, the air volume regulator 11 comprises a fixed orifice plate 12 and an adjusting orifice plate 13, the fixed orifice plate 12 is fixedly arranged in the air collection cover 6, and more than one adjusting orifice plate 13 is arranged at the bottom of the fixed orifice plate 12 in a sliding manner; each adjusting hole plate 13 is rotatably provided with an adjusting screw 14; one end of the adjusting screw 14 penetrates through the shell of the wind collecting cover 6 and is arranged on the outer side of the wind collecting cover 6, and the adjusting screw 14 is in threaded connection with the shell of the wind collecting cover 6; the secondary negative pressure specific gravity separation sieve 8 adopts an up-draft air source to collect impurities in the screening process, so that dust pollution is reduced, the impurities are prevented from blocking sieve pores on the sieve bed, the ventilation rate of the sieve bed is ensured, the energy consumption and the sieve bed cleaning times are reduced, and the maintenance cost is reduced; meanwhile, impurities cannot be accumulated in the base 1, and the service life is prolonged; the air volume regulator 11 in the wind-collecting cover 6 can adjust the suspension air speed of materials in different areas on the screen surface; the suspension wind speed of the materials on the screen surface from bottom to top is ensured, the screening effect is ensured, the energy consumption is reduced, and the working efficiency is improved.
Claims (2)
1. The negative pressure specific gravity separation sieve is characterized by comprising a base and a sieve bed, wherein the sieve bed is obliquely arranged above the base; a plate spring is arranged between the base and the side wall of the sieve bed; a discharge hole is formed in the side wall of the top end of the sieve bed in the length direction; a material returning port is arranged on the side wall of the bottom end of the sieve bed in the length direction; a wind collecting cover is arranged above the sieve bed, the side wall of the wind collecting cover is connected with the side wall of the base through a fixed beam, and flexible sealing cloth is arranged between the top edge of the sieve bed and the bottom edge of the wind collecting cover; the top of the air collecting cover is provided with a feeding hole and more than one fan; an air volume regulator is arranged in the air collecting cover.
2. The negative pressure specific gravity separation sieve according to claim 1, wherein the air volume regulator comprises a fixed orifice plate and an adjusting orifice plate, the fixed orifice plate is fixedly arranged at the bottom of the air collection cover, and more than one adjusting orifice plate is slidably arranged at the bottom of the fixed orifice plate; each adjusting hole plate is rotatably provided with an adjusting screw rod; one end of the adjusting screw penetrates through the shell of the air collecting cover and is arranged on the outer side of the air collecting cover, and the adjusting screw is in threaded connection with the shell of the air collecting cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921447197.8U CN210935933U (en) | 2019-09-02 | 2019-09-02 | Negative pressure specific gravity separating screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921447197.8U CN210935933U (en) | 2019-09-02 | 2019-09-02 | Negative pressure specific gravity separating screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210935933U true CN210935933U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921447197.8U Active CN210935933U (en) | 2019-09-02 | 2019-09-02 | Negative pressure specific gravity separating screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN210935933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387594A (en) * | 2020-09-05 | 2021-02-23 | 江苏吉能达环境能源科技有限公司 | Multistage regulation type powder concentrator |
-
2019
- 2019-09-02 CN CN201921447197.8U patent/CN210935933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387594A (en) * | 2020-09-05 | 2021-02-23 | 江苏吉能达环境能源科技有限公司 | Multistage regulation type powder concentrator |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Negative pressure specific gravity separation screen Effective date of registration: 20230614 Granted publication date: 20200707 Pledgee: Bayannur branch of Postal Savings Bank of China Ltd. Pledgor: WUYUAN COUNTY JINMAI PROMOTION TECHNOLOGY Co.,Ltd. Registration number: Y2023980044073 |