CN117920584A - A air current formula raw materials screening grading plant for carborundum ceramic preparation - Google Patents
A air current formula raw materials screening grading plant for carborundum ceramic preparation Download PDFInfo
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- CN117920584A CN117920584A CN202410309349.7A CN202410309349A CN117920584A CN 117920584 A CN117920584 A CN 117920584A CN 202410309349 A CN202410309349 A CN 202410309349A CN 117920584 A CN117920584 A CN 117920584A
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- 238000012216 screening Methods 0.000 title claims abstract description 137
- 239000002994 raw material Substances 0.000 title claims abstract description 99
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 33
- 239000000919 ceramic Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 10
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000002093 peripheral effect Effects 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000010992 reflux Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 3
- 230000005571 horizontal transmission Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 21
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 229910010293 ceramic material Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C18/2225—Feed means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- 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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- 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
- B07B4/06—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall using revolving drums
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
An airflow type raw material screening and classifying device for preparing silicon carbide ceramics relates to the technical field of airflow screening and comprises a first supporting plate and a second supporting plate which are parallel, wherein a raw material screening cylinder is arranged between the first supporting plate and the second supporting plate, a horizontal cover plate is fixedly connected to an opening at the upper part of the raw material screening cylinder, and a rotary screening assembly is arranged in the raw material screening cylinder; a feeding pipe is fixedly connected to the inner side wall of the second supporting plate, a spiral feeding assembly is arranged in the feeding pipe, and a feeding hopper is fixedly connected to the upper part of the feeding pipe; an annular air box is fixedly connected between the inner peripheral walls of the raw material screening cylinders at the outer peripheral walls of the feeding pipes, and symmetrical air compressors are fixedly connected on the outer walls of the annular air box; the upper surface rigid coupling of horizontal apron has crushing case, smashes the incasement and is equipped with secondary crushing subassembly. The invention solves the problems of low raw material utilization rate and inconvenient feeding, conveying and discharging control of raw materials caused by poor screening effect and excessive separated coarse materials when the airflow screening machine in the traditional technology is used for screening silicon carbide raw materials.
Description
Technical Field
The invention relates to the technical field of airflow screening, in particular to an airflow type raw material screening and grading device for silicon carbide ceramic preparation.
Background
Silicon carbide (SiC) has very similar properties to diamond-it is one of the lightest, hardest and strongest technical ceramic materials, with excellent thermal conductivity, acid resistance and low thermal expansion.
Silicon carbide ceramics are a high-grade ceramic material composed of silicon and carbon, and are generally formed by sintering and bonding silicon carbide particles.
With the rapid development of modern national defense, nuclear energy and aerospace technology, automobile industry and ocean engineering, the requirements on materials are higher and higher. High performance structural ceramic materials are widely used in life. The silicon carbide ceramic material has the advantages of high-temperature strength, good wear resistance, small thermal expansion coefficient, high hardness, thermal shock resistance, chemical corrosion resistance and the like, so that the silicon carbide ceramic material is widely applied to the fields of automobiles, machinery, chemical industry, environmental protection, space technology, information electronics, energy and the like.
In industrial production, the preparation of the silicon carbide ceramic generally takes full-fine silicon carbide powder as a main raw material, and is carried out by adding carbon black, graphite, water reducer, dispersion medium and the like, uniformly mixing, slip casting, drying at 80 ℃ and carrying out reaction sintering at 1720 ℃ to prepare the full-fine silicon carbide ceramic material.
Further, the preparation of the silicon carbide ceramic has high requirement on uniformity of fineness of the raw material, and the median particle diameter of the silicon carbide powder needs to be below 3.6 μm, so that before the mixed slip casting and the drying and sintering of the silicon carbide ceramic are carried out, the silicon carbide powder is often required to be screened to obtain the silicon carbide ceramic preparation raw material meeting the conditions.
Because the silicon carbide raw material for preparing the silicon carbide ceramic is in a powder shape, the air flow screening machine is generally adopted for separation and screening in the screening process, and the existing air flow screening machine has the following problems in common when being used for screening the silicon carbide raw material due to the defects of a design structure:
1. in the screening process, the screen cloth is in a relatively static state, so that the overall utilization rate of the screen cloth is low, and the screen cloth holes are easy to be blocked, thereby influencing the airflow screening effect.
2. The separated coarse materials are disposed improperly, which causes the waste of raw materials.
3. And the feeding and the discharging of raw materials are inconvenient to control.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an airflow type raw material screening and grading device for preparing silicon carbide ceramics, which is used for solving the problems of low raw material utilization rate and inconvenient feeding, conveying and discharging control of raw materials caused by poor screening effect and excessive separated coarse materials commonly existing in the traditional technology when an airflow screening machine is used for screening silicon carbide raw materials.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A air current formula raw materials screening grading plant for carborundum pottery preparation, including parallel first backup pad and second backup pad, first backup pad with the square plate of vertical setting is equipped with raw materials screening section of thick bamboo between the second backup pad, raw materials screening section of thick bamboo is the U-shaped section of thick bamboo that the level set up, the one end rigid coupling of raw materials screening section of thick bamboo is in on the inside wall of first backup pad, the other end opening setting of raw materials screening section of thick bamboo, the upper portion opening part rigid coupling of raw materials screening section of thick bamboo has detachable horizontal apron, be equipped with in the raw materials screening section of thick bamboo and rotate screening subassembly.
As an optimized scheme, the feeding pipe is fixedly connected to the inner side wall of the second supporting plate, the feeding pipe is a horizontally arranged half-through pipe, the opening end of the feeding pipe extends to the raw material screening barrel, a spiral feeding component is arranged in the feeding pipe, and a feeding hopper communicated with the feeding pipe is fixedly connected to the upper portion of the feeding pipe.
As an optimized scheme, an annular air box is fixedly connected to the outer peripheral wall, close to the opening end, of the feeding pipe, the outer peripheral wall of the annular air box is fixedly connected with the inner peripheral wall of the raw material screening cylinder, and two horizontally opposite air compressors are fixedly connected to the outer peripheral wall of the annular air box.
As an optimized scheme, the middle part of the upper surface of the horizontal cover plate is fixedly connected with a crushing box, a secondary crushing assembly is arranged in the crushing box, and a circulating reflux assembly is arranged among the raw material screening barrel, the crushing box and the charging hopper.
As an optimized scheme, the circulating reflux assembly comprises a rotary driving motor fixedly connected to the outer side wall of the first supporting plate, the tail end of an output shaft of the rotary driving motor sequentially penetrates through the first supporting plate and the raw material screening cylinder and is fixedly connected with a circular rotating plate, four centrally symmetrical shoveling plates are fixedly connected to the outer side end face of the circular rotating plate, the four shoveling plates are strip-shaped plates which are horizontally arranged, and the shoveling plates are arranged between the raw material screening cylinder and the screening net cylinder.
As an optimized scheme, the bottom peripheral wall of the raw material screening cylinder is fixedly connected with a blower, the blower is communicated with the raw material screening cylinder, and the blower and the shoveling plate are vertically arranged oppositely.
As an optimized scheme, the horizontal cover plate is provided with a feeding hole, the circulating reflux assembly further comprises a feeding pipe fixedly connected to the outer side of the feeding hole, the feeding pipe is fixedly connected and communicated to the upper portion of the side end face of the crushing box, a reflux pipe is fixedly connected and communicated to the lower portion of the end face of the other side of the crushing box, and the tail end of the reflux pipe is fixedly connected and communicated to the feed hopper.
As an optimized scheme, the secondary crushing assembly comprises crushing driving motors fixedly connected to each transverse side end face of the crushing box, the two crushing driving motors are respectively opposite to the feeding pipe and the return pipe, the tail end of an output shaft of each crushing driving motor respectively penetrates through the side wall of the crushing box and is fixedly connected with a horizontal crushing rotating shaft, and a plurality of crushing cutters are respectively fixedly connected to each crushing rotating shaft along the circumferential direction and the axial direction.
As an optimized scheme, the inner side wall of the second supporting plate close to the lower part is fixedly connected with a horizontal supporting plate, the upper surface of the horizontal supporting plate is fixedly connected with a transmission driving motor, and the tail end of an output shaft of the transmission driving motor penetrates through the side wall of the second supporting plate and is fixedly connected with a main driving wheel.
As an optimized scheme, the spiral feeding assembly comprises a horizontal rotating shaft, a spiral conveying blade is fixedly connected to the peripheral wall of the horizontal rotating shaft, a horizontal transmission intermediate shaft is fixedly connected to one end of the horizontal rotating shaft, the tail end of the transmission intermediate shaft sequentially penetrates through the feeding pipe and the second supporting plate and is fixedly connected with a secondary driving wheel, and a driving belt is sleeved between the primary driving wheel and the secondary driving wheel.
As an optimized scheme, the other end of the horizontal rotating shaft is fixedly connected with a horizontal connecting column, the tail end of the horizontal connecting column penetrates through the opening of the feeding pipe and extends into the raw material screening cylinder, the tail end of the horizontal connecting column is fixedly connected with a cross connecting frame, and a supporting clamping ring is fixedly connected on the cross connecting frame.
As an optimized scheme, the rotary screening assembly comprises a screening net barrel, the screening net barrel comprises four groups of supporting beams which are arranged in a central symmetry mode, the four groups of supporting beams are fixedly connected to the peripheral walls of the supporting clamping rings respectively, cylindrical screening nets are sleeved on the outer sides of the supporting beams, and the axial length of the cylindrical screening nets is smaller than that of the supporting beams.
As an optimized scheme, a discharge hole is formed in the outer peripheral wall of the bottom of the raw material screening cylinder, a discharge hopper is arranged on the outer side of the discharge hole, and the discharge hopper is fixedly connected to the outer peripheral wall of the raw material screening cylinder.
As an optimized scheme, two symmetrical sealing plates are arranged in the discharge hopper in a transverse sliding manner, the sealing plates are tightly attached to the inclined side walls of the discharge hopper, sliding limiting openings are respectively formed in the sealing plates corresponding to the inclined inner side walls of the discharge hopper, sliding driving blocks are clamped in the sliding limiting openings, one ends of the sliding driving blocks are fixedly connected to the back of the sealing plates, fixed connecting blocks are fixedly connected to the inclined outer side walls of the discharge hopper, and an electric control telescopic cylinder is arranged between the fixed connecting blocks and the sliding driving blocks.
As an optimized scheme, a separation plate is fixedly connected to the inner peripheral wall of the raw material screening cylinder, and the separation plate is arranged on the outer side of the screening net cylinder and between the air blower and the discharge hopper.
As an optimized scheme, the feeding pipe and the return pipe are respectively internally provided with an electric control stop valve.
As an optimized scheme, an electric air pump is fixedly connected to the outer top surface of the crushing box.
Compared with the prior art, the invention has the beneficial effects that:
The rotary screening component provided by the invention utilizes the screening net barrel to screen the silicon carbide powder, and in the screening process, the screening net barrel can rotate along with the horizontal rotating shaft, so that the silicon carbide powder circumferentially rolls in the screening net barrel, the utilization rate of the screening net barrel is greatly improved, and further, the transverse air flow generated by the annular air box can blow the silicon carbide powder from the inner side and the outer side of the screening net barrel at the same time, thereby preventing the accumulation and stagnation of the silicon carbide powder and avoiding the blockage of cylindrical screening meshes.
The invention can realize the secondary crushing and the recycling of coarse materials through the cooperation of the secondary crushing component and the recycling reflux component. Specifically, in the raw material screening cylinder, fine materials are separated out through the cylindrical screening net, coarse materials continue to feed along the cylindrical screening net and then are discharged from the cylindrical screening net and enter the raw material screening cylinder, the circular rotating plate is driven to rotate, the coarse materials are repeatedly shoveled and turned by the shoveling plate, compressed air is introduced into the raw material screening cylinder through the blower, the turned coarse materials are blown into the feeding pipe through the feeding hole, the coarse materials enter the crushing box along the feeding pipe and are secondarily crushed through the crushing cutter rotating in the crushing box, the fine materials are enabled to be fine materials meeting the use condition, the fine materials enter the feeding hopper again through the return pipe to participate in feeding and screening, and the secondary crushing and the setting of the return circulation flow are enabled to be recycled after the separated coarse materials of silicon carbide are crushed, the utilization rate of raw materials is improved, and the waste of resources is avoided.
The spiral feeding component provided by the invention can realize quantitative conveying of silicon carbide raw materials, and the discharging hopper and the sealing plate arranged in the discharging hopper in a sliding manner can realize automatic control of silicon carbide powder discharging.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic cross-sectional view of the internal structure of the components of the present invention in a front view;
FIG. 2 is a schematic cross-sectional view of the internal structure of the components of the present invention in a top view;
FIG. 3 is a schematic cross-sectional view of the internal structure of the screw feed assembly of the present invention in a side view;
FIG. 4 is a schematic cross-sectional view showing the internal structure of the raw material screening cylinder and the pulverizing box in a side view;
FIG. 5 is a schematic cross-sectional view of the internal structure of the recirculation assembly of the present invention in a side view;
FIG. 6 is a schematic view of the external overall structure of the present invention in the front view;
FIG. 7 is a schematic view of the exterior overall structure of the present invention in a top view;
fig. 8 is a schematic view of the external overall structure of the present invention in a side view.
In the figure: 1-first supporting plate, 2-second supporting plate, 3-raw material screening cylinder, 4-horizontal cover plate, 5-feeding pipe, 6-loading hopper, 7-crushing box, 8-annular bellows, 9-air compressor, 10-horizontal supporting plate, 11-transmission driving motor, 12-main driving wheel, 13-horizontal rotating shaft, 14-spiral conveying blade, 15-transmission intermediate shaft, 16-auxiliary driving wheel, 17-driving belt, 18-horizontal connecting column, 19-cross connecting frame, 20-supporting clasp, 21-supporting beam, 22-cylindrical screening net, 23-rotation driving motor, 24-circular rotating plate, 25-shoveling plate, 26-supporting sleeve, 27-discharging port, 28-discharging hopper, 29-sealing plate, 30-sliding limit port, 31-sliding driving block, 32-fixed connecting block, 33-electric control telescopic cylinder, 34-blower, 35-isolating plate, 36-feeding port, 37-feeding pipe, 38-39-electric control stop valve, 40-crushing driving motor, 41-crushing rotating shaft, 42-crushing and 43-electric air pump.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 8, an airflow type raw material screening and grading device for preparing silicon carbide ceramics comprises a first supporting plate 1 and a second supporting plate 2 which are parallel, wherein the first supporting plate 1 and the second supporting plate 2 are square plates which are vertically arranged, a raw material screening cylinder 3 is arranged between the first supporting plate 1 and the second supporting plate 2, the raw material screening cylinder 3 is a U-shaped cylinder which is horizontally arranged, one end of the raw material screening cylinder 3 is fixedly connected to the inner side wall of the first supporting plate 1, the other end of the raw material screening cylinder 3 is opened, a detachable horizontal cover plate 4 is fixedly connected to the upper opening of the raw material screening cylinder 3, a rotary screening assembly is arranged in the raw material screening cylinder 3, a feeding pipe 5 is fixedly connected to the inner side wall of the second supporting plate 2, the feeding pipe 5 is a half-way pipe which is horizontally arranged, the opening end of the feeding pipe 5 extends into the raw material screening cylinder 3, a spiral feeding assembly is arranged in the feeding pipe 5, a hopper 6 is fixedly connected to the upper part of the feeding pipe 6, and the feeding hopper 6 is communicated with the feeding pipe 5.
The middle part of the upper surface of the horizontal cover plate 4 is fixedly connected with a crushing box 7, a secondary crushing assembly is arranged in the crushing box 7, and a circulating reflux assembly is arranged among the raw material screening cylinder 3, the crushing box 7 and the charging hopper 6.
The outer peripheral wall of the feeding pipe 5 close to the opening end is fixedly connected with an annular air box 8, the outer peripheral wall of the annular air box 8 is fixedly connected with the inner peripheral wall of the raw material screening cylinder 3, and two horizontally opposite air compressors 9 are fixedly connected on the outer peripheral wall of the annular air box 8.
The inner side wall of the second support plate 2 close to the lower part is fixedly connected with a horizontal support plate 10, the upper surface of the horizontal support plate 10 is fixedly connected with a transmission driving motor 11, and the tail end of an output shaft of the transmission driving motor 11 penetrates through the side wall of the second support plate 2 and is fixedly connected with a main driving wheel 12.
The spiral feeding assembly comprises a horizontal rotating shaft 13, a spiral conveying blade 14 is fixedly connected to the peripheral wall of the horizontal rotating shaft 13, a horizontal transmission intermediate shaft 15 is fixedly connected to one end of the horizontal rotating shaft 13, the tail end of the transmission intermediate shaft 15 sequentially penetrates through the feeding pipe 5 and the second supporting plate 2 and is fixedly connected with a secondary driving wheel 16, and a driving belt 17 is sleeved between the primary driving wheel 12 and the secondary driving wheel 16.
The other end of the horizontal rotating shaft 13 is fixedly connected with a horizontal connecting column 18, the tail end of the horizontal connecting column 18 passes through the opening of the feed pipe 5 and extends into the raw material screening cylinder 3, the tail end of the horizontal connecting column 18 is fixedly connected with a cross connecting frame 19, and the cross connecting frame 19 is fixedly connected with a supporting clamping ring 20.
The rotary screening assembly comprises a screening net barrel, the screening net barrel comprises four groups of supporting beams 21 which are arranged in a central symmetry mode, the four groups of supporting beams 21 are fixedly connected to the peripheral wall of the supporting clamping ring 20 respectively, a cylindrical screening net 22 is sleeved on the outer side of each group of supporting beams 21, and the axial length of each cylindrical screening net 22 is smaller than that of each supporting beam 21.
The circulation reflux assembly comprises a rotation driving motor 23 fixedly connected to the outer side wall of the first supporting plate 1, the tail end of an output shaft of the rotation driving motor 23 sequentially penetrates through the first supporting plate 1 and the raw material screening cylinder 3 and is fixedly connected with a circular rotating plate 24, the circular rotating plate 24 is tightly attached to the inner side end face of the raw material screening cylinder 3, four centrally symmetrical shoveling plates 25 are fixedly connected to the outer side end face of the circular rotating plate 24, the four shoveling plates 25 are all horizontally arranged strip-shaped plates, and the shoveling plates 25 are arranged between the raw material screening cylinder 3 and the screening net cylinder.
The outer end face of the round rotating plate 24 is fixedly connected with a supporting sleeve 26, and the tail ends of the four groups of supporting beams 21 are rotatably supported on the peripheral wall of the supporting sleeve 26.
A discharge hole 27 is formed in the outer peripheral wall of the bottom of the raw material screening cylinder 3, a discharge hopper 28 is arranged on the outer side of the discharge hole 27, and the discharge hopper 28 is fixedly connected to the outer peripheral wall of the raw material screening cylinder 3.
Two symmetrical sealing plates 29 are arranged in the discharge hopper 28 in a transversely sliding manner, the sealing plates 29 are tightly attached to the inclined side walls of the discharge hopper 28, sliding limiting openings 30 are respectively formed in the inclined inner side walls of the discharge hopper 28 corresponding to the sealing plates 29, sliding driving blocks 31 are clamped in the sliding limiting openings 30, one ends of the sliding driving blocks 31 are fixedly connected to the back of the sealing plates 29, fixed connecting blocks 32 are fixedly connected to the inclined outer side walls of the discharge hopper 28, and electric control telescopic cylinders 33 are arranged between the fixed connecting blocks 32 and the sliding driving blocks 31.
The bottom peripheral wall of the raw material screening cylinder 3 is fixedly connected with a blower 34, the blower 34 is arranged on one side of the discharge hopper 28, and the blower 34 is communicated with the raw material screening cylinder 3 and vertically opposite to the shoveling plate 25.
A separation plate 35 is fixedly connected to the inner peripheral wall of the raw material screening cylinder 3, and the separation plate 35 is arranged outside the screening net cylinder and between the blower 34 and the discharge hopper 28.
The horizontal cover plate 4 is provided with a feeding port 36, the feeding port 36 and the blower 34 are arranged up and down oppositely, the circulating reflux assembly further comprises a feeding pipe 37 and a reflux pipe 38, one end of the feeding pipe 37 is fixedly connected to the outer side of the feeding port 36, the other end of the feeding pipe is fixedly connected and communicated to the upper part of the side end face of the crushing box 7, one end of the reflux pipe 38 is fixedly connected and communicated to the lower part of the end face of the other side of the crushing box 7, and the other end of the reflux pipe 38 is fixedly connected and communicated to the charging hopper 6.
An electrically controlled stop valve 39 is arranged in the feed pipe 37 and the return pipe 38 respectively.
The secondary crushing assembly comprises crushing driving motors 40 fixedly connected to each transverse side end face of the crushing box 7, the two crushing driving motors 40 are respectively opposite to the feeding pipe 37 and the return pipe 38, the tail end of an output shaft of each crushing driving motor 40 respectively penetrates through the side wall of the crushing box 7 and is fixedly connected with a horizontal crushing rotating shaft 41, and each crushing rotating shaft 41 is respectively fixedly connected with a plurality of crushing cutters 42 along the circumferential direction and the axial direction.
An electric air pump 43 is fixedly connected to the outer top surface of the crushing box 7.
The invention is used when in use: firstly, adding silicon carbide ceramic preparation raw materials into a feeding pipe 5 from a feeding hopper 6, starting a transmission driving motor 11, driving a main driving wheel 12 to rotate by the transmission driving motor 11, driving a horizontal rotating shaft 13 to rotate by the transmission action of a driving belt 17, an auxiliary driving wheel 16 and a transmission intermediate shaft 15, and conveying the raw materials into a raw material screening cylinder 3 along the feeding pipe 5 by using a spiral conveying blade 14; in the raw material screening process, two air compressors 9 are respectively started, air flows are compressed by the air compressors 9 and then are introduced into the annular bellows 8, the air flows enter the annular bellows 8 and then transversely enter the raw material screening cylinder 3, and the silicon carbide ceramic preparation raw materials conveyed to the two sides of the screening net cylinder are blown up and carried out; controlling the electric control telescopic cylinder 33 to shorten, driving the two sealing plates 29 to slide upwards along the sliding limiting openings 30 respectively, enabling the discharge hopper 28 to be opened, discharging fine materials screened by the screening net drum through the discharge hopper 28, and continuously moving coarse materials to the other side of the isolation plate 35 along the screening net drum; starting a blower 34, introducing flowing air flow into the raw material screening cylinder 3, simultaneously starting a rotary driving motor 23, driving a circular rotary plate 24 to rotate by the rotary driving motor 23, repeatedly copying and turning coarse materials in the raw material screening cylinder 3 by using a shoveling plate 25, and blowing the coarse materials into a feeding pipe 37 from a feeding hole 36 and then into a crushing box 7; starting an electric control stop valve 39, respectively controlling the stop relation of the feeding pipe 37 and the return pipe 38, starting a crushing driving motor 40, driving a crushing rotating shaft 41 to rotate by the crushing driving motor 40, and crushing coarse materials in the crushing box 7 by utilizing a crushing cutter 42; after the crushing, the electric air pump 43 is started, the obtained fine materials are pumped into the return pipe 38, and the fine materials enter the feeding pipe 5 through the hopper 6 along the return pipe 38 again, so that the cyclic screening of the raw materials is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some or all of the technical features may be replaced with other technical solutions, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and all the modifications or replacements are included in the scope of the claims and the specification of the present invention.
Claims (8)
1. A air current formula raw materials screening grading plant for carborundum pottery preparation, its characterized in that: the novel vertical type screening device comprises a first supporting plate (1) and a second supporting plate (2) which are parallel, wherein the first supporting plate (1) and the second supporting plate (2) are square plates which are vertically arranged, a raw material screening cylinder (3) is arranged between the first supporting plate (1) and the second supporting plate (2), the raw material screening cylinder (3) is a U-shaped cylinder which is horizontally arranged, one end of the raw material screening cylinder (3) is fixedly connected to the inner side wall of the first supporting plate (1), the other end of the raw material screening cylinder (3) is provided with an opening, a detachable horizontal cover plate (4) is fixedly connected to the opening at the upper part of the raw material screening cylinder (3), and a rotary screening assembly is arranged in the raw material screening cylinder (3);
The feeding device is characterized in that a feeding pipe (5) is fixedly connected to the inner side wall of the second supporting plate (2), the feeding pipe (5) is a half-way pipe which is horizontally arranged, the opening end of the feeding pipe (5) extends into the raw material screening cylinder (3), a spiral feeding component is arranged in the feeding pipe (5), and a feeding hopper (6) which is communicated with the feeding pipe (5) is fixedly connected to the upper part of the feeding pipe (5);
an annular air box (8) is fixedly connected to the outer peripheral wall, close to the opening end, of the feeding pipe (5), the outer peripheral wall of the annular air box (8) is fixedly connected with the inner peripheral wall of the raw material screening cylinder (3), and two horizontally opposite air compressors (9) are fixedly connected to the outer peripheral wall of the annular air box (8);
the middle part of the upper surface of the horizontal cover plate (4) is fixedly connected with a crushing box (7), a secondary crushing assembly is arranged in the crushing box (7), and a circulating reflux assembly is arranged among the raw material screening cylinder (3), the crushing box (7) and the charging hopper (6);
The circulating reflux assembly comprises a rotary driving motor (23) fixedly connected to the outer side wall of the first supporting plate (1), the tail end of an output shaft of the rotary driving motor (23) sequentially penetrates through the first supporting plate (1) and the raw material screening cylinder (3) and is fixedly connected with a circular rotating plate (24), four centrally symmetrical shoveling plates (25) are fixedly connected to the outer side end face of the circular rotating plate (24), and the four shoveling plates (25) are all strip-shaped plates which are horizontally arranged;
A blower (34) is fixedly connected to the outer peripheral wall of the bottom of the raw material screening cylinder (3), the blower (34) is communicated with the raw material screening cylinder (3), and the blower (34) is vertically opposite to the shoveling plate (25);
The horizontal cover plate (4) is provided with a feeding port (36), the circulating reflux assembly further comprises a feeding pipe (37) fixedly connected to the outer side of the feeding port (36), the feeding pipe (37) is fixedly connected to the upper part of the side end face of the crushing box (7), a reflux pipe (38) is fixedly connected to the lower part of the end face of the other side of the crushing box (7), and the tail end of the reflux pipe (38) is fixedly connected to the hopper (6);
The secondary crushing assembly comprises crushing driving motors (40) fixedly connected to each transverse side end face of the crushing box (7), the two crushing driving motors (40) are respectively opposite to the feeding pipe (37) and the return pipe (38), the tail end of an output shaft of each crushing driving motor (40) respectively penetrates through the side wall of the crushing box (7) and is fixedly connected with a horizontal crushing rotating shaft (41), and a plurality of crushing cutters (42) are respectively fixedly connected to each crushing rotating shaft (41) along the circumferential direction and the axial direction.
2. The gas flow type raw material screening and classifying device for preparing silicon carbide ceramics according to claim 1, wherein: the inner side wall, close to the lower part, of the second supporting plate (2) is fixedly connected with a horizontal supporting plate (10), the upper surface of the horizontal supporting plate (10) is fixedly connected with a transmission driving motor (11), and the tail end of an output shaft of the transmission driving motor (11) penetrates through the side wall of the second supporting plate (2) and is fixedly connected with a main driving wheel (12);
The spiral feeding assembly comprises a horizontal rotating shaft (13), a spiral conveying blade (14) is fixedly connected to the peripheral wall of the horizontal rotating shaft (13), a horizontal transmission intermediate shaft (15) is fixedly connected to one end of the horizontal rotating shaft (13), the tail end of the transmission intermediate shaft (15) sequentially penetrates through the feeding pipe (5) and the second supporting plate (2) and is fixedly connected with a secondary driving wheel (16), and a driving belt (17) is sleeved between the primary driving wheel (12) and the secondary driving wheel (16).
3. The gas flow type raw material screening and classifying device for preparing silicon carbide ceramics according to claim 2, wherein: the other end of the horizontal rotating shaft (13) is fixedly connected with a horizontal connecting column (18), the tail end of the horizontal connecting column (18) penetrates through the opening of the feeding pipe (5) and extends into the raw material screening cylinder (3), the tail end of the horizontal connecting column (18) is fixedly connected with a cross connecting frame (19), and the cross connecting frame (19) is fixedly connected with a supporting clamping ring (20);
The rotary screening assembly comprises a screening net barrel, the screening net barrel comprises four groups of supporting beams (21) which are arranged in a central symmetry mode, the four groups of supporting beams (21) are fixedly connected to the peripheral walls of the supporting clamping rings (20) respectively, cylindrical screening nets (22) are sleeved on the outer sides of the supporting beams (21), and the axial length of each cylindrical screening net (22) is smaller than that of each supporting beam (21).
4. A gas flow type raw material screening and classifying device for silicon carbide ceramic production according to claim 3, wherein: the discharging hopper (28) is arranged on the outer peripheral wall of the bottom of the raw material screening cylinder (3), and the discharging hopper (28) is fixedly connected to the outer peripheral wall of the raw material screening cylinder (3).
5. The gas flow type raw material screening and classifying device for preparing silicon carbide ceramics according to claim 4, wherein: the automatic sealing device is characterized in that two symmetrical sealing plates (29) are arranged in the discharging hopper (28) in a transversely sliding manner, the sealing plates (29) are tightly attached to the inclined side walls of the discharging hopper (28), sliding limiting openings (30) are respectively formed in the inclined inner side walls of the discharging hopper (28) corresponding to the sealing plates (29), sliding driving blocks (31) are clamped in the sliding limiting openings (30), one ends of the sliding driving blocks (31) are fixedly connected to the back of the sealing plates (29), fixed connecting blocks (32) are fixedly connected to the inclined outer side walls of the discharging hopper (28), and electric control telescopic cylinders (33) are arranged between the fixed connecting blocks (32) and the sliding driving blocks (31).
6. The gas flow type raw material screening and classifying device for preparing silicon carbide ceramics according to claim 4, wherein: the raw material screening cylinder (3) is fixedly connected with a separation plate (35) on the inner peripheral wall, and the separation plate (35) is arranged on the outer side of the screening net cylinder and between the air blower (34) and the discharge hopper (28).
7. The gas flow type raw material screening and classifying device for preparing silicon carbide ceramics according to claim 1, wherein: an electric control stop valve (39) is respectively arranged in the feeding pipe (37) and the return pipe (38).
8. The gas flow type raw material screening and classifying device for preparing silicon carbide ceramics according to claim 1, wherein: an electric air pump (43) is fixedly connected to the outer top surface of the crushing box (7).
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| CN202410309349.7A CN117920584B (en) | 2024-03-19 | 2024-03-19 | A air current formula raw materials screening grading plant for carborundum ceramic preparation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118268249A (en) * | 2024-05-31 | 2024-07-02 | 山东万达环保科技有限公司 | A selection by winnowing grading plant for dry process production high specific surface area calcium hydroxide |
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| CN214865043U (en) * | 2021-02-19 | 2021-11-26 | 河南北星精工技术有限公司 | Raw material screening device for reaction sintering silicon carbide product |
| CN115646811A (en) * | 2022-12-27 | 2023-01-31 | 安丘市华星机械设备有限公司 | Air current screening plant is used in production of gypsum mortar premixing |
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| EP0303034A2 (en) * | 1987-08-12 | 1989-02-15 | Paal's Packpressen-Fabrik GmbH & Co. KG | Method and device for sorting refuse |
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| CN118268249A (en) * | 2024-05-31 | 2024-07-02 | 山东万达环保科技有限公司 | A selection by winnowing grading plant for dry process production high specific surface area calcium hydroxide |
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| CN117920584B (en) | 2024-06-18 |
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