CN118237259B - Vibration type screening device and screening process based on cement powder - Google Patents
Vibration type screening device and screening process based on cement powder Download PDFInfo
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- CN118237259B CN118237259B CN202410666414.1A CN202410666414A CN118237259B CN 118237259 B CN118237259 B CN 118237259B CN 202410666414 A CN202410666414 A CN 202410666414A CN 118237259 B CN118237259 B CN 118237259B
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- crankshaft
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- 239000004568 cement Substances 0.000 title claims abstract description 162
- 239000000843 powder Substances 0.000 title claims abstract description 160
- 238000012216 screening Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008569 process Effects 0.000 title claims abstract description 24
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 21
- 239000004744 fabric Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 4
- 238000011161 development Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The application provides a vibration type screening device and a screening process based on cement powder, which belong to the technical field of cement processing and comprise a frame, a bracket, a first screen disc and a second screen disc; the crankshaft is rotationally connected to the frame, a first rotating source for driving the crankshaft to rotate is arranged on the frame, the first screen disc and the second screen disc are respectively hinged to a connecting rod neck of the crankshaft through a linkage rod, an included angle between the crankshaft first connecting rod neck where the first screen disc is positioned and the crankshaft second connecting rod neck where the second screen disc is positioned and the crankshaft main shaft neck is larger than or equal to ninety degrees, and a screen plate on the first screen disc and a screen plate on the second screen disc are arranged at intervals one by one and are in butt joint with the bracket; the application can reduce the probability of stacking of cement powder in the screening process and is beneficial to the development of screening work.
Description
Technical Field
The application relates to the technical field of cement processing, in particular to a vibration type screening device and a screening process based on cement powder.
Background
Cement powder is an important raw material for concrete and other building materials, and is prepared from lime, silicate, aluminate, ferrite and other raw materials through grinding, mixing, calcining and other processes. In the production process of the cement powder, the cement powder needs to be screened to ensure the quality and performance of the cement powder during the subsequent use, so that the cement powder is classified into different categories according to the granularity, and the requirements of different engineering projects on the granularity of the cement powder are met. When the concrete is manufactured subsequently, the screened cement powder is combined in a state of uniform granularity, so that the quality stability of the concrete can be ensured, and the safety and reliability of engineering construction are improved. Therefore, it is a very important group to screen the cement powder for particle size during its production and processing.
Referring to publication number CN116899862A, publication date is 2023, 10 month and 20 days, and the name is chinese patent application file of shale shaker, including work frame, holding tank and bracing piece, through the mode of rotatory cloth for the material in the holding tank evenly falls on vibration screening mechanism, has avoided the material to pile up the condition emergence on vibration screening mechanism at the unloading in-process, ensures that the material can evenly distributed screen cloth and carry out screening and separation, thereby guarantees homogeneity and the stability of screening effect.
With reference to the above technical scheme, in the actual screening process, due to the action of vibration, cement powder can move towards the vibration direction on the screen, but cement powder still can be accumulated on the screen due to the influence of adhesion force and friction force between cement powder and cement powder accumulated on the screen, and the accumulated cement powder can form a barrier on the screen, so that subsequent cement powder cannot pass through the screen, and further the screening quality of the cement powder is affected.
Disclosure of Invention
In view of the above, the application provides a vibration type screening device and a screening process based on cement powder, which are mainly used for solving the problem that cement powder is accumulated in the screening process.
In order to solve the technical problems, the application provides a vibration type screening device and a screening process based on cement powder.
In a first aspect, the application provides a vibratory screening device based on cement powder, comprising a frame, a bracket, a first screen disc and a second screen disc; the crankshaft is rotationally connected to the frame, a first rotating source for driving the crankshaft to rotate is arranged on the frame, the first screen disc and the second screen disc are respectively hinged to a connecting rod neck of the crankshaft through a linkage rod, an included angle between the crankshaft first connecting rod neck where the first screen disc is located and the crankshaft second connecting rod neck where the second screen disc is located and the crankshaft main shaft neck is larger than or equal to ninety degrees, and a screen plate on the first screen disc and a screen plate on the second screen disc are arranged at intervals one by one and are all in butt joint with the bracket.
Through adopting above-mentioned technical scheme, make cement powder produce the height fall on first screen tray and second screen tray under the effect of bent axle, accumulational cement powder can take place the separation because of the continuous dislocation of first screen tray and second screen tray this moment for cement powder is difficult for appearing accumulational condition in the screening process.
Optionally, the cross section of the screen plate on the first screen plate and the cross section of the screen plate on the second screen plate are all wavy.
By adopting the technical scheme, the cement powder can be replaced back and forth on the two screen plates, so that the cement powder moves towards the vibration direction and simultaneously moves in other directions.
Optionally, a distributing mechanism is arranged on the frame and is used for distributing cement powder on the first screen disc and the second screen disc.
Through adopting above-mentioned technical scheme, cloth mechanism can spread cement powder on first sieve tray and second sieve tray, is favorable to the development of follow-up screening work.
Optionally, the distributing mechanism comprises a blanking box fixedly connected to the frame, a hopper is fixedly communicated with the top of the blanking box, a guide disc is slidably connected to the opening of the blanking bin, and a driving unit for driving the guide disc to move is arranged on the blanking box.
Through adopting above-mentioned technical scheme, under drive unit's cooperation, the cement powder that gets into blanking box by the hopper can be along the even spread of guide tray on first sieve tray and second sieve tray, reduces cement powder and appears accumulational probability in the cloth in-process.
Optionally, the drive unit includes rack board of fixed connection on the guide tray, is provided with the second on the blanking box and rotates the source, is provided with the flat gear that can mesh with the rack board on the output shaft of second rotation source.
Through adopting above-mentioned technical scheme, when the second rotates the source and alternately switches in forward rotation state and reverse rotation state, through the cooperation of flat gear and rack board, the guide tray can be according to the inside reciprocal displacement of second rotation source's running state at the blanking box to evenly guide cement powder to first sieve tray and second sieve tray.
Optionally, a crushing mechanism is arranged in the blanking box and is used for crushing the agglomerated cement powder.
Through adopting above-mentioned technical scheme, crushing mechanism can be with the cement powder breakage that the blanking box inside probably takes place the caking, is favorable to the development of cloth work.
Optionally, crushing mechanism is including rotating the outer broken dish of connection in blanking box inside, and outer broken dish top is uncovered to be linked together with the hopper, and a plurality of discharge gates that supply cement powder to pass through have been seted up to outer broken dish's extrados, rotates between outer broken dish and the blanking box to be connected with interior broken dish, is provided with the third on the blanking box and rotates the source, is provided with the bevel gear on the output shaft of third rotation source, all is provided with the awl tooth ring that can with bevel gear meshing on outer broken dish and the interior broken dish, and two awl tooth ring opposite orientations.
Through adopting above-mentioned technical scheme, at the in-process that cement powder gets into blanking box by the hopper, through the cooperation of third rotation source, bevel gear and two awl tooth rings, outer broken dish and interior broken dish can take place rotatoryly thereupon, and the rotation direction of both is opposite for the cement powder of caking is broken, can utilize centrifugal force to throw out cement powder simultaneously.
In a second aspect, the present application provides a vibratory screening process based on cement powder, which is applied to the vibratory screening device based on cement powder in the first aspect, and the screening process includes:
S1, cloth: firstly, cement powder is sent into a blanking box from a hopper, and then a driving unit drives a guide disc to reciprocate in the blanking box, so that the cement powder is uniformly guided to a first screen disc and a second screen disc;
s2, screening: when cement powder falls on the first screen disc and the second screen disc, the first rotation source drives the crankshaft to rotate, so that the first screen disc and the second screen disc shake to finish screening the cement powder;
S3, aggregate: and (3) carrying out differentiated collection on the cement powder screened by the first screen tray and the second screen tray according to the particle size.
Through adopting above-mentioned technical scheme, at first cement powder gets into blanking box by the hopper and falls on first sieve tray and second sieve tray under the direction effect of guide tray, when first rotation source drives the bent axle rotatory, under the mutually supporting of first sieve tray and second sieve tray, cement powder can accomplish the screening under the condition that does not take place to pile up as far as possible for cement powder is collected according to the granularity size is distinguished.
Optionally, in step S1, when the cement powder enters the blanking box from the hopper, if there is agglomerated cement powder, the agglomerated cement powder is crushed by the aid of the crushing mechanism, and then the crushed cement powder is sent into the blanking box.
Through adopting above-mentioned technical scheme, when the circumstances of caking appears in cement powder, broken mechanism is as the auxiliary member of cloth in-process, can be with the broken cement powder of the inside caking of blanking box.
In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:
1. Utilize the height fall of two sieve trays for the cement powder of piling up in batches as a whole separates into a plurality of individual that pile up in batches along with the continuous dislocation of two sieve trays, simultaneously because the screening action of two sieve trays is asynchronous, can alternate when taking place the displacement based on the vibration direction by the cement powder of piling up in batches of a plurality of, makes the cement powder be difficult for appearing piling up the condition at the screening process.
2. The cement powder is displaced in other directions while being displaced based on the vibration direction by adopting a mode of back and forth displacement of the cement powder on the two screen plates, so that the probability of stacking of the cement powder in the screening process is further reduced, and the screening work is facilitated.
3. The spreading work of the cement powder is completed by continuously changing the blanking points, so that the cement powder is uniformly distributed on the first screen disc and the second screen disc, and the situation that the cement powder is accumulated in the material distribution process is reduced.
4. Can break up the cement powder of caking before cloth work is developed, reduce the probability that the cement powder blockked up the guide tray because of the caking in-process of cloth, utilize centrifugal force to throw out the mode of cement powder simultaneously, also can reduce the accumulational probability appears when cement powder cloth to a certain extent.
Drawings
FIG. 1 is a schematic diagram of a vibratory screening apparatus based on cement powder according to the present application;
FIG. 2 is a schematic view of the structure of a first screen tray and a second screen tray of the present application;
FIG. 3 is an exploded view of a first screen tray and a second screen tray of the application;
FIG. 4 is a cross-sectional view of the blanking cartridge of the present application;
FIG. 5 is an enlarged view of a portion of the area A of FIG. 4 in accordance with the present application;
Fig. 6 is a cross-sectional view of an outer crushing disc according to the application.
Reference numerals illustrate: 1. a frame; 11. a coarse material collecting frame; 12. a fines collection frame; 13. a bracket; 2. a crankshaft; 21. a first rotation source; 22. a linkage rod; 23. a first screen tray; 24. a second screen tray; 3. a material distribution mechanism; 31. a blanking box; 32. a hopper; 33. a material guiding disc; 34. a driving unit; 341. rack plate; 342. a second rotation source; 343. a flat gear; 4. a crushing mechanism; 41. an outer crushing disc; 42. a discharge port; 43. an inner crushing disc; 44. a third rotation source; 45. bevel gears; 46. conical toothed ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the application, fall within the scope of protection of the application.
In a first aspect, the present application provides a vibratory screening device based on cement powder, which adopts the following technical scheme:
Referring to fig. 1,2 and 3, the present embodiment provides a vibrating screening device based on cement powder, which comprises a frame 1, wherein a coarse material collecting frame 11 and a fine material collecting frame 12 are detachably connected to the bottom of the frame 1, and a bracket 13 is arranged on the frame 1.
The machine frame 1 is rotationally connected with a crankshaft 2, a first rotating source 21 for driving the crankshaft 2 to rotate is arranged on the machine frame 1, a first screen disc 23 and a second screen disc 24 are respectively hinged on a connecting rod neck of the crankshaft 2 through a linkage rod 22, an included angle between the first connecting rod neck of the crankshaft 2 where the first screen disc 23 is located and a main journal of the crankshaft 2 where the second screen disc 24 is located and the main journal of the crankshaft 2 is larger than or equal to ninety degrees, screening plates on the first screen disc 23 and screening plates on the second screen disc 24 are arranged at intervals one by one and are in butt joint with a bracket 13, and the cross section of the screening plate on the first screen disc 23 and the cross section of the screening plate on the second screen disc 24 are all in wavy arrangement.
A distributing mechanism 3 is arranged on the frame 1 for distributing cement powder on the first screen tray 23 and the second screen tray 24.
The cement powder is firstly scattered on the first screen disc 23 and the second screen disc 24 by the material distributing mechanism 3, then the first rotation source 21 drives the crankshaft 2 to rotate, and at the moment, the first screen disc 23 and the second screen disc 24 shake under the traction action of the crankshaft 2 and the linkage action of the linkage rod 22 to finish the screening of the cement powder.
Because the shaking situation of the first screen tray 23 and the second screen tray 24 is asynchronous, the screen plates on the first screen tray 23 and the screen plates on the second screen tray 24 are staggered continuously, cement powder piled up in large batches is separated into a plurality of individuals piled up in small batches along with the shaking of the first screen tray 23 and the second screen tray 24, and the cement powder piled up in small batches is separated into a plurality of cement powder piled up in small batches and is alternately carried out when being displaced based on the vibration direction due to the development of screening work, so that the cement powder is not easy to be piled up in the screening process.
Because the cross section of the screen plate is wavy, the joint of two adjacent screen plates is in a trough position, the midpoint of the cross section of the screen plate is in a crest position, and under the action of gravity, cement powder on the first screen plate 23 and the second screen plate 24 can slide from the crest position of the screen plate to the trough position, so that the cement powder is displaced on the first screen plate 23 and the second screen plate 24, and the cement powder piled together is dispersed.
The trough position of the screen plate can also be provided with an elevation angle with a certain radian so as to reduce the situation that cement powder enters into gaps of two adjacent screen plates in a large amount to cause blocking, and the elevation angle is smaller than the peak height of the screen plate, so that the cement powder can pass through the elevation angle to reach the other screen plate under the action of acceleration generated when the peak position of the screen plate slides down.
The fine-grained cement powder will eventually fall from the sieve openings in the sieve plate into the fine-grained cement powder collecting frame 12, while the coarse-grained cement powder will slide along the sieve plate into the coarse-grained cement powder collecting frame 11.
The cement powder is displaced back and forth on the first screen disc 23 and the second screen disc 24 under the action of the crankshaft 2, and at this time, the cement powder is displaced in other directions while moving in the vibration direction, so that the probability of accumulation of the cement powder in the screening process is reduced.
Referring to fig. 1 and 4, the distributing mechanism 3 comprises a blanking box 31 fixedly connected to the frame 1, a hopper 32 is fixedly connected to the top of the blanking box 31, a material guiding disc 33 is slidably connected to an opening of the blanking bin, and a driving unit 34 for driving the material guiding disc 33 to move is arranged on the blanking box 31.
Referring to fig. 4 and 5, the driving unit 34 includes a rack plate 341 fixedly connected to the tray 33, a second rotation source 342 is provided on the blanking box 31, and a flat gear 343 capable of meshing with the rack plate 341 is provided on an output shaft of the second rotation source 342.
After the cement powder is fed from the hopper 32 into the blanking box 31, the second rotation source 342 is alternately switched between the forward rotation state and the reverse rotation state, and simultaneously drives the flat gear 343 to rotate, and the material guiding plate 33 is reciprocally displaced inside the blanking box 31 according to the operation state of the second rotation source 342 due to the engagement relationship between the rack plate 341 and the flat gear 343, so that the cement powder is uniformly guided to the first screen plate 23 and the second screen plate 24.
The spreading work of the cement powder is completed by continuously changing the blanking points, so that the cement powder is uniformly distributed on the first screen disc 23 and the second screen disc 24, and the situation that the cement powder is piled up in the material distribution process is reduced.
Referring to fig. 4, the blanking box 31 is internally provided with a crushing mechanism 4 for crushing agglomerated cement powder.
Referring to fig. 4 and 6, the crushing mechanism 4 comprises an outer crushing disc 41 rotatably connected inside a blanking box 31, the top of the outer crushing disc 41 is opened and communicated with a hopper 32, a plurality of discharge holes 42 for cement powder to pass through are formed in the outer cambered surface of the outer crushing disc 41, an inner crushing disc 43 is rotatably connected between the outer crushing disc 41 and the blanking box 31, a third rotation source 44 is arranged on the blanking box 31, a bevel gear 45 is arranged on an output shaft of the third rotation source 44, bevel gear rings 46 capable of being meshed with the bevel gear 45 are arranged on the outer crushing disc 41 and the inner crushing disc 43, and the two bevel gear rings 46 are opposite in orientation.
In the process that cement powder enters the blanking box 31 from the hopper 32, the cement powder can fall into the outer crushing disc 41 preferentially, at this time, the third rotation source 44 operates to drive the bevel gear 45 to rotate, and is influenced by the meshing connection relationship between the bevel gear 45 and the two bevel rings 46, the outer crushing disc 41 and the inner crushing disc 43 can rotate along with the bevel gear 45, and the rotation directions of the outer crushing disc and the inner crushing disc are opposite. The agglomerated cement powder is crushed after being subjected to the rotary extrusion of the outer crushing disc 41 and the inner crushing disc 43, and the cement powder is thrown into the blanking box 31 through the discharge opening 42 by the centrifugal force when the outer crushing disc 41 and the inner crushing disc 43 are rotated.
Can break up the cement powder of caking before cloth work is developed, reduce the probability that the cement powder blockked up guide tray 33 because of the caking in-process of cloth, utilize centrifugal force to throw out the mode of cement powder simultaneously, also can reduce the accumulational probability appears when cement powder cloth to a certain extent.
The implementation principle of the vibrating screening device based on the cement powder provided by the embodiment of the application is as follows:
After the cement powder is fed from the hopper 32 into the blanking box 31, the second rotation source 342 is alternately switched between the forward rotation state and the reverse rotation state, and simultaneously drives the flat gear 343 to rotate, and the material guiding plate 33 is reciprocally displaced inside the blanking box 31 according to the operation state of the second rotation source 342 due to the engagement relationship between the rack plate 341 and the flat gear 343, so that the cement powder is uniformly guided to the first screen plate 23 and the second screen plate 24.
Then the first rotation source 21 drives the crankshaft 2 to rotate, and at this time, the first screen disc 23 and the second screen disc 24 shake under the traction action of the crankshaft 2 and the linkage action of the linkage rod 22 to finish the screening of cement powder.
Because the shaking situation of the first screen tray 23 and the second screen tray 24 is not synchronous, the screen plates on the first screen tray 23 and the screen plates on the second screen tray 24 are continuously staggered, and the accumulated cement powder is primarily separated.
Because the cross section of the screen plate is wavy, the joint of two adjacent screen plates is in a trough position, the midpoint of the cross section of the screen plate is in a crest position, and under the action of gravity, cement powder on the first screen plate 23 and the second screen plate 24 can slide from the crest position of the screen plate to the trough position, so that the cement powder is displaced on the first screen plate 23 and the second screen plate 24, and the cement powder piled together is dispersed.
The fine-grained cement powder will eventually fall from the sieve openings in the sieve plate into the fine-grained cement powder collecting frame 12, while the coarse-grained cement powder will slide along the sieve plate into the coarse-grained cement powder collecting frame 11.
In the process that cement powder enters the blanking box 31 from the hopper 32, the cement powder can fall into the outer crushing disc 41 preferentially, at this time, the third rotation source 44 operates to drive the bevel gear 45 to rotate, and is influenced by the meshing connection relationship between the bevel gear 45 and the two bevel rings 46, the outer crushing disc 41 and the inner crushing disc 43 can rotate along with the bevel gear 45, and the rotation directions of the outer crushing disc and the inner crushing disc are opposite. The agglomerated cement powder is crushed after being subjected to the rotary extrusion of the outer crushing disc 41 and the inner crushing disc 43, and the cement powder is thrown into the blanking box 31 through the discharge opening 42 by the centrifugal force when the outer crushing disc 41 and the inner crushing disc 43 are rotated.
In a second aspect, the present application provides a vibratory screening process based on cement powder, applied to the vibratory screening device based on cement powder of the first aspect, comprising:
S1, cloth: firstly, cement powder is sent into a blanking box 31 from a hopper 32, and then a driving unit 34 drives a material guiding disc 33 to reciprocate in the blanking box 31, so that the cement powder is evenly guided to a first screen disc 23 and a second screen disc 24;
s2, screening: when the cement powder falls on the first screen disc 23 and the second screen disc 24, the first rotation source 21 drives the crankshaft 2 to rotate, so that the first screen disc 23 and the second screen disc 24 shake to finish screening the cement powder;
S3, aggregate: the cement powder screened through the first screen pan 23 and the second screen pan 24 is collected separately according to particle size.
Firstly, cement powder enters the blanking box 31 from the hopper 32 and falls on the first screen disc 23 and the second screen disc 24 under the guiding action of the guide disc 33, and when the first rotation source 21 drives the crankshaft 2 to rotate, the cement powder can be screened as far as possible under the condition that stacking does not occur under the mutual cooperation of the first screen disc 23 and the second screen disc 24, so that the cement powder is collected in a differentiated mode according to the granularity.
In step S1, when the cement powder is fed from the hopper 32 into the blanking box 31, if the agglomerated cement powder exists, the agglomerated cement powder is crushed by the crushing mechanism 4, and then the crushed cement powder is fed into the blanking box 31.
When the cement powder appears the condition of caking, broken mechanism is as the auxiliary member of cloth in-process, can be with the inside cement powder breakage of caking of blanking box.
Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (9)
1. Vibrating screening device based on cement powder, including frame (1), bracket (13), first sieve tray (23) and second sieve tray (24), its characterized in that still includes:
The crankshaft (2) is rotationally connected to the frame (1), a first rotating source (21) for driving the crankshaft (2) to rotate is arranged on the frame (1), the first screen disc (23) and the second screen disc (24) are hinged to the connecting rod neck of the crankshaft (2) through the linkage rod (22) respectively, and the included angle between the first connecting rod neck of the crankshaft (2) where the first screen disc (23) is located and the main shaft neck of the crankshaft (2) where the second screen disc (24) is located and the main shaft neck of the crankshaft (2) is larger than or equal to ninety degrees, and the screen plates on the first screen disc (23) and the screen plates on the second screen disc (24) are arranged at intervals one by one and are in butt joint with the bracket (13).
2. The vibratory screening device for cement powder according to claim 1, wherein: the cross section of the sieve plate on the first sieve plate (23) and the cross section of the sieve plate on the second sieve plate (24) are both wavy.
3. The vibratory screening device for cement powder according to claim 1, wherein: the frame (1) is provided with a distributing mechanism (3) for distributing cement powder on the first screen disc (23) and the second screen disc (24).
4. A vibratory screening apparatus for cement powder according to claim 3, wherein: the material distributing mechanism (3) comprises a blanking box (31) fixedly connected to the frame (1), a hopper (32) is fixedly communicated with the top of the blanking box (31), a material guiding disc (33) is slidably connected to the opening of the blanking box, and a driving unit (34) for driving the material guiding disc (33) to move is arranged on the blanking box (31).
5. The vibratory screening device for cement powder according to claim 4, wherein: the driving unit (34) comprises a rack plate (341) fixedly connected to the material guiding disc (33), a second rotation source (342) is arranged on the blanking box (31), and a flat gear (343) capable of being meshed with the rack plate (341) is arranged on an output shaft of the second rotation source (342).
6. The vibratory screening device for cement powder according to claim 4, wherein: the blanking box (31) is internally provided with a crushing mechanism (4) for crushing agglomerated cement powder.
7. The vibratory screening device for cement powder according to claim 6, wherein: the utility model provides a crushing mechanism (4) is including rotating outer broken dish (41) of connection in blanking box (31) inside, and outer broken dish (41) top is uncovered to be linked together with hopper (32), a plurality of discharge gates (42) that supply cement powder to pass through have been seted up to the extrados of outer broken dish (41), rotate between outer broken dish (41) and blanking box (31) and be connected with interior broken dish (43), be provided with third rotation source (44) on blanking box (31), be provided with bevel gear (45) on the output shaft of third rotation source (44), all be provided with on outer broken dish (41) and the interior broken dish (43) can with bevel gear (45) meshing awl ring (46), and two awl ring (46) are opposite.
8. A vibratory screening process based on cement powder, applied to the vibratory screening device based on cement powder according to claim 6, comprising:
S1, cloth: firstly, cement powder is sent into a blanking box (31) from a hopper (32), and then a driving unit (34) drives a material guiding disc (33) to reciprocate in the blanking box (31), so that the cement powder is evenly guided to a first screen disc (23) and a second screen disc (24);
S2, screening: when the cement powder falls on the first screen disc (23) and the second screen disc (24), the first rotation source (21) drives the crankshaft (2) to rotate, so that the first screen disc (23) and the second screen disc (24) shake to finish screening the cement powder;
S3, aggregate: the cement powder screened by the first screen tray (23) and the second screen tray (24) is collected in a distinguishing way according to the particle size.
9. The vibratory screening process for cement powder according to claim 8, wherein: in step S1, when cement powder enters the blanking box (31) from the hopper (32), if agglomerated cement powder exists, the agglomerated cement powder is crushed by the aid of the crushing mechanism (4), and then the crushed cement powder is sent into the blanking box (31).
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