CN109604156B - Sand powder separation equipment and method for separating sand powder by adopting same - Google Patents
Sand powder separation equipment and method for separating sand powder by adopting same Download PDFInfo
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- CN109604156B CN109604156B CN201910010652.6A CN201910010652A CN109604156B CN 109604156 B CN109604156 B CN 109604156B CN 201910010652 A CN201910010652 A CN 201910010652A CN 109604156 B CN109604156 B CN 109604156B
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- 239000000843 powder Substances 0.000 title claims abstract description 131
- 239000004576 sand Substances 0.000 title claims abstract description 41
- 238000000926 separation method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000004575 stone Substances 0.000 claims abstract description 77
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims description 163
- 239000000463 material Substances 0.000 claims description 39
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 12
- 238000005265 energy consumption Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
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- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
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- 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
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
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- Combined Means For Separation Of Solids (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a sand-stone powder separation device, which comprises a shell, wherein an air inlet area, a scattering area, a powder removing area, a flow guide area and an air outlet area which are sequentially communicated are arranged in the shell, a feed inlet is arranged at the top of the air inlet area, a discharge outlet is arranged at the bottom of the air inlet area, an air inlet position of the air inlet area is set as an air inlet, an air outlet position of the air outlet area is set as an air outlet, a step scattering device and a scattering adjusting device are arranged in the scattering area, a fan blade device and a fan blade adjusting device are arranged in the powder removing area, a plurality of guide plates are arranged in the flow guide area, a sand-stone powder mixture at the feed inlet is scattered by the step scattering device, scattered sand stones flow out from the discharge outlet, and scattered stone powder sequentially passes through the fan blade device and the guide plates under the carrying of air at the air inlet, and finally flows out from the air outlet; the invention also provides a method for separating the sand powder by adopting the separation equipment. The invention has the advantages of high sand powder separation efficiency, good effect and high automation degree.
Description
Technical Field
The invention relates to the field of machine-made sand production, in particular to a sand-stone powder separation device and a method for separating sand-stone powder by adopting the separation device.
Background
The dry-method sand making has the advantages of good grading, low production cost, no limitation of water sources and environment and more environmental protection, the dry-method sand making is mostly adopted in the prior ore production machine sand, and a series of operations such as ore crushing, stone powder separation, screening, super-grain size re-crushing and the like are needed in the production process of the machine sand. In the process of crushing ores into sand, 10-20% of stone powder can be generated, the stone powder is mixed with broken stone and sand, on one hand, the mixture is easy to generate dust in the transportation process, so that the environment is polluted, and on the other hand, if the stone powder enters a vibrating screen for screening, the treatment capacity and the screening efficiency are reduced. Therefore, it is necessary to provide a machine-made sandstone powder separation device with good separation effect, high efficiency, low energy consumption and high automation degree to solve the above problems.
Disclosure of Invention
Aiming at the problems, the invention provides a sand-stone powder separation device which has high sand-stone powder separation efficiency and good effect, can accurately adjust operation parameters for mixtures with different stone powder contents to ensure that the stone powder content in finished sand is stable and controllable, has strong adaptability, adopts a static powder removal mode, does not need moving parts to forcibly break up the mixtures in the breaking-up process, does not need energy consumption, has low energy consumption and high automation degree.
The technical scheme adopted by the invention for solving the technical problems is as follows: a sand-stone powder separation device comprises a shell, wherein an air inlet area, a scattering area, a powder removing area, a flow guide area and an air outlet area which are sequentially communicated are arranged in the shell, a feed inlet is formed in the top of the air inlet area, a discharge outlet is formed in the bottom of the air inlet area, the air inlet position of the air inlet area is set as an air inlet, the air outlet position of the air outlet area is set as an air outlet, a step scattering device and a scattering adjusting device used for adjusting the angle of the step scattering device are arranged in the scattering area, a fan blade device and a fan blade adjusting device used for adjusting the angle of the fan blade device are arranged in the powder removing area, a plurality of guide plates are arranged in the flow guide area, a sand-stone powder mixture of the feed inlet is scattered by the step scattering device, scattered sand stones flow out of the discharge outlet, and scattered stone powder sequentially passes through the fan blade device and the guide plates under the air at the air inlet and finally flows out of the air outlet; the device also comprises a control system for controlling the separation equipment, wherein the control system comprises a controller, a discharge port dust concentration sensor arranged at a discharge port, an air outlet dust concentration sensor arranged at an air outlet, a scattering unit angle sensor arranged on the step scattering device, and a fan blade angle sensor arranged on the fan blade device; the device comprises a discharge port dust concentration sensor, an air outlet dust concentration sensor, a controller and a wind blade adjusting device, wherein the discharge port dust concentration sensor and the air outlet dust concentration sensor respectively transmit detected discharge port dust concentration signals and air outlet dust concentration signals to the controller, and the controller controls the scattering adjusting device and the wind blade adjusting device according to the signals so as to adjust the angles of the step scattering device and the wind blade device; meanwhile, the scattering unit angle sensor and the fan blade angle sensor feed angle signals back to the controller in real time to form closed-loop control.
Preferably, the controller comprises an input module, a control module, a storage output module, a display module, an alarm module and a reset protection module,
the input module is used for inputting preset system time, unit angle of each rotation of the step scattering device and the fan blade device, range of rotation angle of the step scattering device and the fan blade device, duration and interval time of monitoring by the discharge port dust concentration sensor and the air outlet dust concentration sensor, a discharge port dust concentration control threshold value and an air outlet dust concentration control threshold value,
the control module is used for controlling the rotation actions of the step scattering device and the fan blade device,
the storage output module is used for storing the dust concentration of each monitoring time point, the rotation angles of the step scattering device and the fan blade device,
the display module is used for displaying system time, dust concentration at the discharge hole, dust concentration at the air outlet, the angle of each rotation of the step scattering device and the fan blade device, and the real-time angle of the step scattering device and the fan blade device,
the alarm module is used for giving an alarm when abnormality occurs,
the reset protection module is used for realizing the reset protection function.
Preferably, the step scattering device comprises a plurality of scattering units, each scattering unit comprises a supporting plate and a material receiving plate connected with the supporting plate through a spring device, the step scattering device further comprises a scattering rotating shaft which is arranged at two ends of the supporting plate and is arranged on the shell through scattering mounting holes and can rotate relative to the shell, the scattering rotating shaft at one end of the supporting plate is connected with the scattering unit angle sensor, and the scattering rotating shaft at the other end of the supporting plate is connected to the scattering adjusting device through a scattering control rod.
Preferably, the spring device comprises a guide rod arranged at the lower part of the material receiving plate, a guide hole corresponding to the guide rod is formed in the support plate, and a set of springs arranged on the guide rod, the guide rod penetrates through the guide hole, the guide rod is locked through a locking sleeve at the bottom end of the support plate, the bottom end of each spring is tightly abutted to the top end of the support plate, and the bottom end of the material receiving plate is tightly abutted to the top end of each spring.
Preferably, the scattering adjusting device comprises a scattering linkage control rod and a scattering executing mechanism, the scattering linkage control rod is hinged to the scattering linkage control rod of each scattering unit, one end of the scattering executing mechanism is hinged to the scattering linkage control rod, and the other end of the scattering executing mechanism is hinged to the shell.
Preferably, the fan blade device comprises a plurality of fan blade units, each fan blade unit comprises a blade and a fan blade rotating shaft which is arranged at two ends of the blade, is arranged on the shell through a fan blade mounting hole and can rotate relative to the shell, the fan blade rotating shaft at one end of the blade is connected with the fan blade angle sensor, and the fan blade rotating shaft at the other end of the blade is connected to the fan blade adjusting device through a fan blade control rod.
Preferably, the fan blade adjusting device comprises a fan blade linkage control rod and a fan blade executing mechanism, the fan blade linkage control rod is hinged to the fan blade control rod of each fan blade unit, one end of the fan blade executing mechanism is hinged to the fan blade linkage control rod, and the other end of the fan blade executing mechanism is hinged to the shell.
Preferably, the unit angle of each rotation of the step scattering device and the fan blade device is 1-8 degrees, preferably 5 degrees; the air inlet is a plurality of and is set as a slit air inlet.
The invention also provides a method for separating sand powder by adopting the separation device, which comprises the following steps:
step 1, initialization: starting a controller, wherein the system selects the setting kept at the previous time by default, if the setting of the system can be changed by using an input module, the system time, the unit angle of each rotation of the step scattering device and the fan blade device, the range of the rotation angle of the step scattering device and the fan blade device, the monitoring duration time of the dust concentration sensor at the discharge port and the monitoring interval time of the dust concentration sensor at the air outlet can be set;
a, when a discharge port dust concentration sensor detects that the dust concentration at a discharge port is lower than a discharge port dust concentration control threshold value, and an air outlet dust concentration sensor detects that the dust concentration at an air outlet is higher than a discharge port dust concentration control threshold value, the separation device is in a normal working state at the moment, system control parameters do not need to be adjusted, and a scattering adjusting device and a fan blade adjusting device are kept still;
when a discharge port dust concentration sensor detects that the dust concentration at a discharge port is lower than a discharge port dust concentration control threshold value, and an air outlet dust concentration sensor detects that the dust concentration at an air outlet is lower than a discharge port dust concentration control threshold value, the results show that the powder removal rate of the stone powder is normal, the total stone powder amount in the stone powder mixture is too low, and the processing capacity of the stone powder separating device is not fully exerted, at the moment, a controller sends a control signal to a scattering adjusting device, so that the scattering adjusting device rotates clockwise by a unit angle, the downward inclination of a step scattering device is increased, the movement speed of the material is increased, the rebound times and the movement time are reduced, the processing capacity is improved, and the fan blade adjusting device is kept still;
when a discharge port dust concentration sensor detects that the dust concentration at a discharge port is higher than a discharge port dust concentration control threshold value, and an air outlet dust concentration sensor detects that the dust concentration at an air outlet is higher than a discharge port dust concentration control threshold value, the results show that the powder removal rate of the stone powder is insufficient, the total stone powder amount in the stone powder mixture is too high, and the processing capacity of the stone powder separating device is insufficient, at the moment, a controller sends a control signal to a scattering and adjusting device, so that the scattering and adjusting device rotates anticlockwise by a unit angle, the downward inclination of the step scattering and adjusting device is reduced, the moving speed of the material is reduced, the rebounding times and the moving time are increased, the processing capacity is reduced, and the fan blade adjusting device is kept still;
d, when the dust concentration sensor at the discharge port detects that the dust concentration at the discharge port is higher than the dust concentration control threshold value at the discharge port and the dust concentration sensor at the air outlet detects that the dust concentration at the air outlet is lower than the dust concentration control threshold value at the discharge port, the result shows that the powder removing rate of the stone powder is insufficient and the stone powder is not absorbed in time, at the moment, the controller sends a control signal to the fan blade adjusting device to enable the fan blade adjusting device to rotate anticlockwise by a unit angle, so that the fan blade device rotates anticlockwise, the overflowing area is reduced, the air speed of a powder removing area is improved, the powder removing capacity is improved, and the step scattering device is kept still.
Compared with the prior art, the invention has the following beneficial effects:
1. the step scattering device provided by the invention adopts the spring device, so that multiple rebounding and collision in the process of material flow falling can be realized, and stone powder is fully separated from the sand-stone mixture;
2. the invention adopts slit air intake and is only arranged at the gap position between the scattering units, thus reducing the air intake area and concentrating the air volume, and under the premise of certain air volume, the air speed of the scattering area can be improved, thereby improving the capability of blowing away and taking away stone powder;
3. the control system provided by the invention adjusts the angles of the step scattering device and the fan blade device according to the dust concentration of the discharge port and the dust concentration of the air outlet, adjusts the material resilience times, the passing time and the powder removing air speed, and enables parameters such as the material speed and the air speed to achieve the best matching;
4. the powder removing mode of the invention is static powder removing, the mixture is not required to be forcibly dispersed by moving parts in the dispersing process, the energy consumption is not required, and the invention has the advantages of energy saving and noise reduction.
Drawings
FIG. 1 is a sectioned isometric view of a housing of the present invention;
FIG. 2 is a schematic view of an open portion of the housing of the present invention;
FIG. 3 is a schematic axial view of a preferred embodiment of the present invention;
FIG. 4 is a schematic internal cross-sectional view of a preferred form of the invention;
FIG. 5 is an enlarged partial schematic view in internal section of a preferred form of the invention;
FIG. 6 is a schematic axial view of the construction of the housing of the present invention;
FIG. 7 is a schematic view of the scattering unit structure of the present invention;
FIG. 8 is a schematic view of a break-up adjustment apparatus of the present invention;
FIG. 9 is a schematic structural diagram of a fan blade unit according to the present invention;
FIG. 10 is a schematic view of a fan blade adjusting device of the present invention;
FIG. 11 is a schematic diagram of the control system of the present invention.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 11, and the exemplary embodiments and descriptions of the present invention are provided herein to explain the present invention but not to limit the present invention.
A sand and stone powder separation device comprises a shell 1, an air inlet area A, a scattering area B, a powder removing area C, a diversion area D and an air outlet area E which are sequentially communicated are arranged in the shell, a feed inlet 7 is arranged at the top of the air inlet area, a discharge outlet 8 is arranged at the bottom of the air inlet area, an air inlet position of the air inlet area is set as an air inlet 9, an air outlet position of the air outlet area is set as an air outlet 10, a step scattering device 2 and a scattering adjusting device 3 for adjusting the angle of the step scattering device are arranged in the scattering area, a fan blade device 4 and a fan blade adjusting device 5 for adjusting the angle of the fan blade device are arranged in the powder removing area, a plurality of diversion plates 11 are arranged in the diversion area, a sand and stone powder mixture of the feed inlet 7 is scattered by the step scattering device 2, scattered sand and stone flows out from the discharge outlet 8, and scattered stone powder sequentially passes through the fan blade device 4 and the diversion plates 11 under the wind of the air inlet, finally, the air flows out of the air outlet 10; the device also comprises a control system 6 for controlling the separation equipment, wherein the control system comprises a controller 6a, a discharge port dust concentration sensor 6b arranged in a discharge port area, an air outlet dust concentration sensor 6c arranged in an air outlet area, a scattering unit angle sensor 6d arranged on the step scattering device, and a fan blade angle sensor 6e arranged on the fan blade device; the device comprises a discharge port dust concentration sensor (6b) for measuring the dust concentration of a discharge port area, an air outlet dust concentration sensor (6c) for measuring the dust concentration of an air outlet area, a discharge port dust concentration sensor and an air outlet dust concentration sensor respectively transmit detected discharge port dust concentration signals and air outlet dust concentration signals to a controller, and the controller controls a scattering adjusting device and a fan blade adjusting device according to the signals so as to realize angle adjustment of a step scattering device and a fan blade device; meanwhile, the scattering unit angle sensor and the fan blade angle sensor feed angle signals back to the controller in real time to form closed-loop control. The outside of the air inlet area of the shell 1 adopts a dense mesh type net, so that a human body is prevented from accidentally entering the equipment, air inlet is not influenced, the air inlets are multiple, slit air inlet is adopted in the air inlets, slits are only arranged at the gap positions between the scattering units to serve as the air inlets, the air speed is improved, the dust blowing effect is improved, the air outlet 10 adopts a gradually-reducing form, the air speed is effectively improved, and the capability of carrying stone powder is improved.
The controller 6a comprises an input module, a control module, a storage output module, a display module, an alarm module and a reset protection module, wherein the input module is used for inputting preset system time, a unit angle of each rotation of the step scattering device 2 and the wind blade device 4, a range of the rotation angle of the step scattering device 2 and the wind blade device 4, duration and interval time monitored by the discharge port dust concentration sensor and the air outlet dust concentration sensor, a discharge port dust concentration control threshold value and an air outlet dust concentration control threshold value, the control module is used for controlling the rotation actions of the step scattering device and the wind blade device, the storage output module is used for storing the dust concentration of each monitoring time point, the rotation angle of the step scattering device and the wind blade device, and the display module is used for displaying the system time, the discharge port dust concentration, the air outlet dust concentration, The step scattering device and the fan blade device rotate at each time, and the step scattering device and the fan blade device rotate at each time, the alarm module is used for giving an alarm when abnormality occurs, and the reset protection module is used for achieving a reset protection function.
The step scattering device comprises a plurality of scattering units which are arranged along a step from the feed inlet to the discharge outlet and used for scattering sand-stone powder mixture to separate stone powder from sand stone. Break up adjusting device 3 and step and break up device 2 and link to each other for adjust the angle of each unit of breaing up, thereby adjust the number of times of kick-backing and the transit time of material flow, each break up the unit include a backup pad 2b and through spring assembly with connect flitch 2a that the backup pad is connected, still including locating the backup pad both ends are installed at the casing and can be relative pivoted through breaking up the mounting hole and break up rotation axis 2e with this casing, and the rotation axis 2e that breaks up of backup pad one end links to each other with break up unit angle sensor 6d, the rotation axis that breaks up of the backup pad other end is connected to and breaks up adjusting device 3 through breaking up control lever 2f, under the promotion of breaking up the control lever, connects flitch 2a can rotate thereby change and connect flitch 2a angle, changes the material flow direction of kick-backing up, adjusts the material flow and breaks up the transit time in the district. The material receiving plate 2a is composed of a material receiving bottom plate, a material receiving inlet side plate and a material receiving outlet side plate, the material receiving bottom plate is made of wear-resistant materials, the material receiving plate is in a U-shaped groove form with unequal heights, the material receiving inlet side plate close to the air inlet side is high, a slit is formed, air inlet speed is increased, dust is favorably taken away, the material receiving outlet side plate on the material outlet side is low, a layer of stone is kept on the material receiving bottom plate in a maintaining mode, impact and abrasion are reduced, and the material receiving plate 2a is protected.
The spring device comprises a guide rod arranged at the lower part of the material receiving plate 2a, a support plate is provided with a guide hole corresponding to the guide rod, and the spring device also comprises a spring 2c arranged on the guide rod in a sleeved mode, the guide rod penetrates through the guide hole and is locked by a locking sleeve 2d at the bottom end of the support plate 2b, the bottom end of the spring is tightly abutted to the top end of the support plate, the bottom end of the material receiving plate is tightly abutted to the top end of the spring, and the material receiving plate can slide relative to the support plate along the guide rod under the action of the spring. When the sand-stone powder mixture enters from the feeding hole and then falls into the first scattering unit, part of the sand powder and the gravels are separated in the falling process, the spring 2c is impacted and compressed when the sand-stone powder mixture falls into the scattering unit, the sand-stone powder mixture rebounds after the spring is compressed to a certain degree and collides with the falling sand-stone powder mixture, the sand powder and the gravels are further separated, after the sand-stone powder mixture collides for multiple times through the scattering units, the separation effect of the sand powder and the gravels can be greatly improved, the gravels are discharged from the discharging hole and enter a subsequent treatment process, and the sand powder is taken away by wind energy generated by a fan.
The scattering adjusting device 3 comprises a scattering linkage control rod 3a and a scattering actuating mechanism 3b, the scattering linkage control rod 3a is hinged to the scattering linkage control rod 2f of each scattering unit, one end of the scattering actuating mechanism 3b is hinged to the scattering linkage control rod 3a, and the other end of the scattering actuating mechanism is hinged to the shell 1. The breaking-up executing mechanism has a self-locking function, and the breaking-up executing mechanism 3b in the breaking-up adjusting device 3 can be a linear executing mechanism such as an electric push rod, an electro-hydraulic push rod, a hydraulic oil cylinder and the like, preferably an electric push rod.
The fan blade device 4 comprises a plurality of fan blade units, the fan blade adjusting device 5 is connected with the fan blade devices and used for adjusting the angles of the fan blade units so as to adjust the wind speed of the powder removing area, each fan blade unit comprises a blade 4a and a fan blade rotating shaft 4b which is arranged at two ends of the blade and is arranged on the shell 1 through a fan blade mounting hole and can rotate relative to the shell, the fan blade rotating shaft at one end of the blade is connected with a fan blade angle sensor 6e, and the fan blade rotating shaft at the other end of the blade is connected to the fan blade adjusting device 5 through a fan blade control rod 4 c. Under the push of the fan blade control rod 4c, the fan blade device can rotate, so that the flow area of wind is changed, and the wind speed is adjusted.
The fan blade adjusting device 5 comprises a fan blade linkage control rod 5a and a fan blade executing mechanism 5b, the fan blade linkage control rod 5a is hinged with the fan blade control rod 4c of each fan blade unit, one end of the fan blade executing mechanism 5b is hinged with the fan blade linkage control rod 5a, and the other end of the fan blade executing mechanism is hinged with the shell 1. Similarly, the fan blade actuating mechanism 5b in the fan blade adjusting device can be a linear actuating mechanism such as an electric push rod, an electro-hydraulic push rod, a hydraulic oil cylinder and the like, and preferably is an electric push rod.
The unit angle of each rotation of the step scattering device 2 and the wind blade device is 1-8 degrees, preferably 5 degrees; the air inlets are multiple and are set as slit air inlets 9 a.
The range of the rotating angle of the step scattering device 2 is-10 degrees to 30 degrees, preferably-5 degrees to 20 degrees.
The rotation angle of the fan blade device is preferably in the range of 0-90 degrees.
The time for monitoring by the dust concentration sensor is preferably 20s, and the interval time is preferably 40 s.
The dust concentration control threshold value of the discharge hole is 30g/m3～80g/m3Preferably 50g/m3。
The dust concentration control threshold value of the air outlet is 200g/m3～400g/m3Preferably 300g/m3。
The sand-stone powder separating device can realize multiple rebounding and collision of material flow, stone powder is fully separated, the capability of wind carrying the stone powder can be improved by slit air inlet, the automatic control system adjusts the angles of the step scattering device and the fan blades according to the dust concentration of the discharge port and the dust concentration of the air outlet, the rebounding times and passing time of materials and the powder removing wind speed are adjusted, parameters such as material speed, wind speed and the like are optimally matched, the sand-stone powder separating efficiency is high, the effect is good, the operation parameters can be accurately adjusted for mixed materials with different stone powder contents, the stone powder content in finished sand is stable and controllable, the adaptability is strong, the powder removing mode is static powder removing, moving parts are not needed to forcedly scatter the mixed materials in the scattering process, energy consumption is not needed, and the energy saving and noise reduction are realized.
The invention also provides a method for separating sand powder by adopting the separation device, which comprises the following steps:
step 1, initialization: starting the controller 6a, selecting the setting kept at the previous time by default by the system, if the setting of the system can be changed by using the input module, and setting the system time, the unit angle of each rotation of the step scattering device 2 and the wind blade device 4, the range of the rotation angle of the step scattering device and the wind blade device, the duration time and the interval time monitored by the discharge port dust concentration sensor 6b and the air outlet dust concentration sensor 6 c;
a, when a discharge port dust concentration sensor 6b detects that the dust concentration at a discharge port is lower than a discharge port dust concentration control threshold value and an air outlet dust concentration sensor 6c detects that the dust concentration at an air outlet is higher than the discharge port dust concentration control threshold value, the separation device is in a normal working state at the moment, system control parameters do not need to be adjusted, and a scattering adjusting device 3 and a fan blade adjusting device 5 are kept still;
when a discharge port dust concentration sensor 6b detects that the dust concentration at a discharge port is lower than a discharge port dust concentration control threshold value, and an air outlet dust concentration sensor 6c detects that the dust concentration at an air outlet is lower than a discharge port dust concentration control threshold value, the results show that the dust removal rate of the stone powder is normal, the total stone powder amount in the sand powder mixture is too low, and the treatment capacity of the sand powder separation device is not fully exerted, at the moment, a controller 6a sends a control signal to a scattering and adjusting device 3, so that the scattering and adjusting device 3 rotates clockwise by a unit angle, the downward inclination of a step scattering device 2 is increased, the movement speed of the material is increased, the rebound times and the movement time are reduced, the treatment capacity is increased, and a fan blade adjusting device 5 is kept still;
when the discharge port dust concentration sensor 6b detects that the dust concentration at the discharge port is higher than the discharge port dust concentration control threshold value, and the air outlet dust concentration sensor 6c detects that the dust concentration at the air outlet is higher than the discharge port dust concentration control threshold value, the result shows that the powder removal rate of the stone powder is insufficient, the total stone powder amount in the sand powder mixture is overhigh, and the processing capacity of the sand powder separation device is insufficient, at the moment, the controller 6a sends a control signal to the scattering adjusting device 3, so that the scattering adjusting device 3 rotates anticlockwise by a unit angle, the downward inclination of the step scattering device 2 is reduced, the movement speed of the material is reduced, the rebound times and the movement time are increased, the processing capacity is reduced, and the fan blade adjusting device 5 is kept still;
d, when the dust concentration sensor 6b at the discharge port detects that the dust concentration at the discharge port is higher than the dust concentration control threshold value at the discharge port, and the dust concentration sensor 6c at the air outlet detects that the dust concentration at the air outlet is lower than the dust concentration control threshold value at the discharge port, the result shows that the powder removing rate of the stone powder is insufficient and the stone powder is not absorbed in time, at the moment, the controller 6a sends a control signal to the fan blade adjusting device 5, so that the fan blade adjusting device 5 rotates anticlockwise by a unit angle, the fan blade device 4 rotates anticlockwise, the overflowing area is reduced, the air speed of a powder removing area is improved, the powder removing capacity is improved, and the step scattering device 2 is kept still.
In the implementation process, the controller 6a is started firstly, the system selects the setting kept at the previous time by default, if the setting of the system can be changed by using the input module, the system time, the unit angle of each rotation of the step scattering device 2 and the fan blade device, the range of the rotation angle of the step scattering device and the fan blade device, the duration time and the interval time monitored by the dust concentration sensor at the discharge port and the dust concentration sensor at the air outlet can be set.
After the system is set, the control system starts a control function, according to the monitoring time and the two-time monitoring interval time set by the system, the dust concentration sensor 6b at the discharge port and the dust concentration sensor 6c at the air outlet detect the dust concentration at the discharge port and the dust concentration at the air outlet, after the set monitoring time is reached, the data measured in the time period are processed, corresponding signals are output to the controller 6a after the dust concentration is obtained, the controller 6a receives the signals of the dust concentration sensor 6b at the discharge port and the dust concentration sensor 6c at the air outlet, control signals are output according to control rules, the angle adjustment of the step scattering device 2 and the wind blade device is realized by controlling the scattering adjusting device 3 and the wind blade adjusting device 5, the material flow resilience times, the passing time and the wind speed of the powder removing area are adjusted, the system is optimally matched, and the operation parameters can be accurately adjusted for mixtures with different stone powder contents, so that the stone powder contents in the finished sand are stable and controllable, Has strong adaptability and realizes the high-efficiency separation of the sandstone powder.
In the working process of the step scattering device, when sand-stone powder mixture enters from the feeding hole and then falls into the first scattering unit, part of the sand powder and the gravels are separated in the falling process, the spring 2c is impacted and compressed when the sand-stone powder mixture falls into the scattering unit, the spring rebounds after being compressed to a certain degree to rebound the sand-stone powder mixture, the sand-stone powder mixture collides with the falling sand-stone powder mixture, the mountain powder is further separated from the gravel, the sand-stone powder mixture collides for multiple times through the scattering units, the separation effect of the mountain powder and the gravels can be greatly improved, the gravels go out from the discharging hole and enter a subsequent treatment process, and the mountain powder is taken away by wind energy generated by the fan.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (6)
1. A sand stone powder separation equipment which is characterized in that: the separation equipment comprises a shell (1), an air inlet area (A), a scattering area (B), a powder removing area (C), a flow guide area (D) and an air outlet area (E) which are sequentially communicated are arranged in the shell, a feed inlet (7) is arranged at the top of the air inlet area (A), a discharge hole (8) is arranged at the bottom of the air inlet area, an air inlet position of the air inlet area is set as an air inlet (9), an air outlet position of the air outlet area is set as an air outlet (10), a step scattering device (2) and a scattering adjusting device (3) used for adjusting the angle of the step scattering device (2) are arranged in the scattering area, a fan blade device (4) and a fan blade adjusting device (5) used for adjusting the angle of the fan blade device (4) are arranged in the powder removing area, a plurality of guide plates (11) are arranged in the flow guide area, sand and sand powder mixture of the feed inlet (7) is scattered through the step scattering device (2), and crushed sand flows out from the discharge hole (8), the scattered stone powder sequentially passes through the fan blade device (4) and the guide plate (11) under the carrying of wind at the air inlet and finally flows out of the air outlet (10);
the step scattering device (2) comprises a plurality of scattering units, each scattering unit comprises a supporting plate (2 b), a material receiving plate (2 a) connected with the supporting plate through a spring device, and a scattering rotating shaft (2 e) which is arranged at two ends of the supporting plate, is arranged on the shell through a scattering mounting hole and can rotate relative to the shell, the scattering rotating shaft (2 e) at one end of the supporting plate is connected with a scattering unit angle sensor (6 d), and the scattering rotating shaft at the other end of the supporting plate is connected to a scattering adjusting device (3) through a scattering control rod (2 f);
the spring device comprises a guide rod arranged at the lower part of the material receiving plate (2 a), a support plate is provided with a guide hole corresponding to the guide rod, and the spring device also comprises a spring (2 c) sleeved on the guide rod, the guide rod penetrates through the guide hole, the guide rod is locked through a locking sleeve (2 d) at the bottom end of the support plate (2 b), the bottom end of the spring is tightly propped against the top end of the support plate, and the bottom end of the material receiving plate is tightly propped against the top end of the spring;
the scattering adjusting device (3) comprises a scattering linkage control rod (3 a) and a scattering executing mechanism (3 b), the scattering linkage control rod (3 a) is hinged with the scattering control rod (2 f) of each scattering unit, one end of the scattering executing mechanism (3 b) is hinged with the scattering linkage control rod (3 a), and the other end of the scattering executing mechanism (3 b) is hinged with the shell (1);
the device also comprises a control system (6) for controlling the separation equipment, wherein the control system comprises a controller (6 a), a discharge port dust concentration sensor (6b) arranged at a discharge port, an air outlet dust concentration sensor (6c) arranged at an air outlet, a scattering unit angle sensor (6 d) arranged on the step scattering device, and a fan blade angle sensor (6 e) arranged on the fan blade device; the device comprises a discharge port dust concentration sensor, an air outlet dust concentration sensor, a controller and a step scattering device (2), wherein the discharge port dust concentration sensor and the air outlet dust concentration sensor respectively transmit detected discharge port dust concentration signals and air outlet dust concentration signals to the controller, and the controller controls the scattering adjusting device (3) and the air vane adjusting device (5) according to the signals so as to adjust the angles of the step scattering device (2) and the air vane device (4); meanwhile, the scattering unit angle sensor and the fan blade angle sensor feed angle signals back to the controller in real time to form closed-loop control.
2. The sandstone powder separation device of claim 1, wherein: the controller (6 a) comprises an input module, a control module, a storage output module, a display module, an alarm module and a reset protection module,
the input module is used for inputting preset system time, unit angle of each rotation of the step scattering device (2) and the wind blade device (4), range of rotation angle of the step scattering device (2) and the wind blade device (4), duration time and interval time monitored by the discharge port dust concentration sensor and the air outlet dust concentration sensor, a discharge port dust concentration control threshold value and an air outlet dust concentration control threshold value,
the control module is used for controlling the rotation action of the step scattering device (2) and the wind blade device (4),
the storage output module is used for storing the dust concentration of each monitoring point, the rotation angle of the step scattering device (2) and the wind blade device (4),
the display module is used for displaying system time, dust concentration of the discharge hole, dust concentration of the air outlet, the angle of each rotation of the step scattering device (2) and the wind blade device (4), and the real-time angle of the step scattering device (2) and the wind blade device (4),
the alarm module is used for giving an alarm when abnormality occurs,
the reset protection module is used for realizing the reset protection function.
3. The sandstone powder separation device of claim 1, wherein: the fan blade device (4) comprises a plurality of fan blade units, each fan blade unit comprises a fan blade (4 a) and a fan blade rotating shaft (4 b) which is arranged at two ends of the fan blade and is arranged on the shell (1) through a fan blade mounting hole and can rotate relative to the shell, the fan blade rotating shaft at one end of the fan blade is connected with a fan blade angle sensor (6 e), and the fan blade rotating shaft at the other end of the fan blade is connected to a fan blade adjusting device (5) through a fan blade control rod (4 c).
4. The sandstone powder separation equipment of claim 3, wherein: the fan blade adjusting device (5) comprises a fan blade linkage control rod (5 a) and a fan blade executing mechanism (5 b), the fan blade linkage control rod (5 a) is hinged with the fan blade control rod (4 c) of each fan blade unit, one end of the fan blade executing mechanism (5 b) is hinged with the fan blade linkage control rod (5 a), and the other end of the fan blade executing mechanism is hinged with the shell (1).
5. The sandstone powder separation device of claim 2, wherein: the unit angle of each rotation of the step scattering device (2) and the wind blade device (4) is 1-8 degrees; the air inlets are multiple and are set as slit air inlets (9 a).
6. A method for separating sand from stone powder by using the sand separating apparatus as claimed in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
step 1, initialization: starting a controller (6 a), selecting the setting kept at the previous time by default by the system, if the setting of the system by using an input module needs to be changed, setting the system time, the unit angle of each rotation of the step scattering device (2) and the wind blade device (4), the range of the rotation angle of the step scattering device (2) and the wind blade device (4), and the duration time and the interval time monitored by the dust concentration sensor (6b) at the discharge port and the dust concentration sensor (6c) at the air outlet;
step 2, set up duration and interval time according to the system, discharge gate dust concentration sensor (6b), air outlet dust concentration sensor (6c) detect discharge gate dust concentration respectively, air outlet dust concentration, and output signal, discharge gate dust concentration sensor (6b) is received in controller (6 a), the signal of air outlet dust concentration sensor (6c), control signal is exported according to control rule, thereby scatter adjusting device (3) and leaf adjusting device (5) through the control and realize the angle modulation to step scattering device (2) and leaf device, its control rule specifically is:
a, when a discharge port dust concentration sensor (6b) detects that the dust concentration at a discharge port is lower than a discharge port dust concentration control threshold value and an air outlet dust concentration sensor (6c) detects that the dust concentration at an air outlet is higher than the discharge port dust concentration control threshold value, the sandstone powder separation equipment is in a normal working state, system control parameters do not need to be adjusted, and a scattering adjusting device (3) and a wind leaf adjusting device (5) are kept still;
b, when a discharge port dust concentration sensor (6b) detects that the dust concentration at a discharge port is lower than a discharge port dust concentration control threshold value, and an air outlet dust concentration sensor (6c) detects that the dust concentration at an air outlet is lower than a discharge port dust concentration control threshold value, the results show that the powder removal rate of the stone powder is normal, the total stone powder amount in the sand powder mixture is too low, the treatment capacity of the sand powder separation device is not fully exerted, and at the moment, a controller (6 a) sends a control signal to a scattering adjusting device (3), so that the scattering adjusting device (3) rotates clockwise by a unit angle, the downward inclination of a step scattering device (2) is increased, the movement speed of the material is increased, the rebound times and the movement time are reduced, the treatment capacity is improved, and a fan blade adjusting device (5) is kept still;
when a discharge port dust concentration sensor (6b) detects that the dust concentration at a discharge port is higher than a discharge port dust concentration control threshold value, and an air outlet dust concentration sensor (6c) detects that the dust concentration at an air outlet is higher than a discharge port dust concentration control threshold value, the situation that the powder removal rate of stone powder is insufficient, the total stone powder amount in a sand-stone powder mixture is too high, and the treatment capacity of a sand-stone powder separation device is insufficient is indicated, at the moment, a controller (6 a) sends a control signal to a scattering adjusting device (3), so that the scattering adjusting device (3) rotates anticlockwise for a unit angle, the downward inclination of a step scattering device (2) is reduced, the movement speed of the material is reduced, the rebound times and the movement time are increased, the treatment capacity is reduced, and a fan blade adjusting device (5) is kept still;
d, when the dust concentration sensor (6b) at the discharge port detects that the dust concentration at the discharge port is higher than a dust concentration control threshold value at the discharge port, and the dust concentration sensor (6c) at the air outlet detects that the dust concentration at the air outlet is lower than the dust concentration control threshold value at the discharge port, the result shows that the powder removing rate of the stone powder is insufficient and the stone powder is not absorbed in time, at the moment, the controller (6 a) sends a control signal to the fan blade adjusting device (5), so that the fan blade adjusting device (5) rotates anticlockwise by a unit angle, the fan blade device (4) rotates anticlockwise, the overflowing area is reduced, the air speed of a powder removing area is improved, the powder removing capacity is improved, and the step scattering device (2) is kept still.
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| CN109499869B (en) * | 2019-01-07 | 2024-04-26 | 浙江沙王建材有限公司 | Mechanism grit powder splitter |
| CN110788003B (en) * | 2019-11-04 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Control method of air separation device for removing fine particle dust of lime kiln |
| CN118502319B (en) * | 2024-06-19 | 2025-05-06 | 苏健丰一智能制造(江苏)有限公司 | An intelligent control system for sand and gravel separator |
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