CN115350764A - Large-feeding double-shaft sand making machine - Google Patents
Large-feeding double-shaft sand making machine Download PDFInfo
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- CN115350764A CN115350764A CN202211016135.8A CN202211016135A CN115350764A CN 115350764 A CN115350764 A CN 115350764A CN 202211016135 A CN202211016135 A CN 202211016135A CN 115350764 A CN115350764 A CN 115350764A
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- sand making
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- making cavity
- grate frame
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- 239000004576 sand Substances 0.000 title claims abstract description 176
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 abstract description 16
- 239000004575 stone Substances 0.000 description 4
- 235000004443 Ricinus communis Nutrition 0.000 description 3
- 240000000528 Ricinus communis Species 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004566 building material Substances 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
- 238000012216 screening Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- -1 sandstone Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/26—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a grid or grating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4636—Regulation of screen apertures
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of sand making, in particular to a large-feeding double-shaft sand making machine which comprises a sand making machine body, wherein the sand making machine body consists of an upper box body and a lower box body, the upper box body and the lower box body are detachably connected, a first sand making cavity and a second sand making cavity are symmetrically arranged in the sand making machine body, the first sand making cavity and the second sand making cavity are communicated with a feeding cavity at the top of the upper box body, rotating mechanisms are arranged in the first sand making cavity and the second sand making cavity, a detachable separation structure is arranged between the first sand making cavity and the second sand making cavity, adjustable sieve plate structures are arranged at the bottoms of the first sand making cavity and the second sand making cavity and comprise a sieve plate seat and a grate bar, the sieve plate seat is arranged in the lower box body of the sand making machine body, the sand making area is increased on the basis of a single-bin sand making machine by arranging the double-shaft double-bin sand making machine, and the double-shaft single-bin sand making machine is provided with multiple raw materials and multiple parameters for processing.
Description
Technical Field
The invention relates to the technical field of sand making, in particular to a large-feeding double-shaft sand making machine.
Background
The machine-made sand is sand which is formed by roughly breaking stone and processing the stone through other sand making equipment, and can be processed into sand with different rules and sizes according to different process requirements so as to ensure that a finished product is more regular, thereby better meeting the daily requirements of buildings. The raw materials for the machine-made sand are various, and generally, granite, basalt, cobble, limestone, quartz stone, sandstone, slag and the like are available. Especially, the 3mm-10mm stones crushed by the crusher have the advantages of small market consumption, low utilization rate, small granularity, difficult crushing and high crushing difficulty. Most of the existing sand making machines are single-shaft single-bin sand making machines, the working efficiency is not high, chinese patent with publication No. CN202120850744.8 discloses a screening vibration mechanism for a vertical mine sand making machine, wherein a structure of a double-shaft motor is used, but the single bin still is used for processing, and only one type of machine-made sand can be processed at one time, meanwhile, the existing sand making machines mostly adopt fixed sieve plate structures, so-called fixed sieve plate structures, including the fixation of position fixing and screening specifications, for example, chinese patent with publication No. CN201420616364.8 discloses a novel building material sand making machine, a grate used by the novel building material sand making machine is arranged in a lower box body and is arc-shaped, and is fixedly connected with the lower box body, when in use, when meeting the requirements of different machine-made sands, the whole machine needs to be replaced, and the use is very inconvenient.
Disclosure of Invention
Aiming at the problems, the invention provides a large-feeding double-shaft sand making machine.
The technical scheme who adopts is, a big feeding biax system sand machine includes system sand machine body, system sand machine body comprises last box and lower box, and go up the box and can dismantle the connection with lower box, wherein system sand machine body internal symmetry is provided with first system sand chamber and second system sand chamber, and first system sand chamber and second system sand chamber all communicate with the feeding chamber at last box top, all be provided with slewing mechanism in first system sand chamber and the second system sand chamber, be provided with detachable partition structure between first system sand chamber and the second system sand chamber, first system sand chamber and second system sand chamber bottom are provided with adjustable sieve plate structure, adjustable sieve plate structure includes sieve plate seat and grate, the sieve plate seat is located in the lower box of system sand machine body, the grate is located on the working face of sieve plate seat, and can dismantle with sieve plate seat and be connected, be provided with a plurality of grates side by side on the working face of sieve plate seat.
Furthermore, one part of the first sand making cavity is positioned in the upper box body, the other side of the first sand making cavity is positioned in the lower box body and is positioned in the lower box body, the bottom of the first sand making cavity is of a semi-circular arc structure, one part of the second sand making cavity is positioned in the upper box body, the other side of the second sand making cavity is positioned in the lower box body and is positioned in the lower box body, and the bottom of the second sand making cavity is of a semi-circular arc structure.
Optionally, the partition structure is the division board, and the feeding intracavity is located to the division board, and the division board can be with leading-in first system sand chamber of raw materials and second system sand chamber.
Furthermore, the vertical projection of the partition plate is positioned between the first sand making cavity and the second sand making cavity.
Optionally, the rotating mechanism comprises a rotor, and the rotor is driven to rotate by a motor arranged outside the sand making machine body.
Optionally, a first rotor is arranged in the first sand making cavity, a rotating shaft of the first rotor penetrates through a first through hole in the sand making machine body and is driven by the first motor to rotate, a second rotor is arranged in the second sand making cavity, and a rotating shaft of the second rotor penetrates through a second through hole in the sand making machine body and is driven by the second motor to rotate.
Further, the sieve plate seat comprises a first grate frame, a second grate frame and a third grate frame, the first grate frame, the second grate frame and the third grate frame are arranged in parallel, the second grate frame is located between the first grate frame and the third grate frame, and the first grate frame 24, the second grate frame 25 and the third grate frame 26 are connected through angle steel 28 and a connecting steel plate 29.
Optionally, the upper surfaces of the first grate frame, the second grate frame and the third grate frame are working surfaces, and the working surfaces are two symmetrical arc surfaces.
Furthermore, arc plates are arranged on the working surfaces of the first grate frame, the second grate frame and the third grate frame.
Optionally, the grate comprises grate plates, grate bars and hook bodies, the grate bars are arranged between the grate plates, and the hook bodies are arranged at the bottoms of the grate bars and can be hooked on the circular arc plates.
Optionally, the grate plate is arc-shaped, the bottom surface of the grate plate can be attached to the arc plate, and a gap is formed between every two adjacent screen bars.
The beneficial effects of the invention at least comprise one of the following effects;
1. through the system sand machine that sets up biax two storehouses, increased system sand area on the basis of unipolar list storehouse system sand machine, and to biax list storehouse system sand machine, provide a many raw materialss, the system sand machine that the multi-parameter processed.
2. Through set up detachable castor bean strip on sieve plate seat for can realize the regulation to sieve plate structure when processing man-hour, distinguish processing to the raw materials of different particle diameters, different processing parameters, avoid making sand machine wholly change
3. The problem of current unipolar single storehouse system sand machine, system sand inefficiency, and biax single storehouse system sand machine can only carry out single parameter processing and the castor bean strip setting that current system sand machine used to a raw materials one time under the box inside and be convex to with lower box fixed connection, when using, when meeting different mechanism sand demands, need whole change equipment, it is very inconvenient to use is solved.
Drawings
FIG. 1 is a schematic view of a large-feed double-shaft sand making machine in a three-dimensional structure;
FIG. 2 is a schematic structural diagram of an upper box body and a lower box body of a large-feeding double-shaft sand making machine;
FIG. 3 is a schematic diagram of an internal structure of a large-feed double-shaft sand making machine;
FIG. 4 is a schematic side view of a large-feed double-shaft sand making machine;
FIG. 5 is a schematic structural diagram of a lower box of a sand making machine;
FIG. 6 is a schematic view of the structure of the sieve plate base and the grate;
FIG. 7 is a schematic view of a sieve plate holder;
FIG. 8 is a schematic side view of the structure of the sieve plate base and the grate;
FIG. 9 is a schematic view of a grate bar structure;
labeled in the figure as: the device comprises a sand making machine body 1, an upper box body 2, a lower box body 3, a first motor 4, a second motor 5, a first perforation 6, a second perforation 7, a feed inlet 8, a feed cavity 9, a first sand making cavity 10, a second sand making cavity 11, a partition plate 12, a first rotor 14, a second rotor 15, a grate bar 16, a shaft body 17, a turntable 18, a narrow V-shaped belt 19, a hook body 21, a first grate frame 24, a second grate frame 25, a third grate frame 26, an arc plate 27, an angle steel 28, a connecting steel plate 29, a connecting hole 30, a fixing bolt 31, a grate bar pressure plate 32, a limiting bolt 33, a lining plate 34, round steel 35, a sieve bar 36, a gap 37 and a grate plate 38. .
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
As shown in fig. 1 to 9, a large-feeding double-shaft sand making machine comprises a sand making machine body 1, wherein the sand making machine body 1 is composed of an upper box body 2 and a lower box body 3, the upper box body 2 and the lower box body 3 are detachably connected, a first sand making cavity 10 and a second sand making cavity 11 are symmetrically arranged in the sand making machine body 1, the first sand making cavity 10 and the second sand making cavity 11 are communicated with a feeding cavity 9 at the top of the upper box body 2, a rotating mechanism is arranged in each of the first sand making cavity 10 and the second sand making cavity 11, a detachable separation structure is arranged between the first sand making cavity 10 and the second sand making cavity 11, an adjustable sieve plate structure is arranged at the bottoms of the first sand making cavity 10 and the second sand making cavity 11 and comprises a sieve plate seat and a grate 16, the sieve plate seat is arranged in the lower box body 3 of the sand making machine body 1, the grate 16 is arranged on the working surface of the sieve plate seat and is detachably connected with the sieve plate seat, and a plurality of grate 16 are arranged side by side.
The purpose of design like this, through the system sand machine that sets up biax double-bin, increased system sand area on the basis of unipolar single-bin system sand machine, and to biax single-bin system sand machine, provided a system sand machine that many raw materialss, the multi-parameter was processed. The problem of current unipolar single storehouse system sand machine, system sand inefficiency, and biax single storehouse system sand machine can only carry out single parameter processing to a raw materials one time is solved.
In the actual use process, the raw materials enter the first sand making cavity or the second sand making cavity through the separation structure, and under different parameters, the sand making processing is completed under the driving of respective rotating mechanisms.
Through set up detachable castor bean strip on the sieve plate seat for can realize processing man-hour the regulation to the sieve structure, distinguish processing to the raw materials of different particle diameters, different processing parameters, avoid making the whole change of sand machine. The grate solves the problems that the grate used by the existing sand making machine is arranged in the lower box body and is arc-shaped, and is fixedly connected with the lower box body, when in use, the whole equipment needs to be replaced when meeting different sand making requirements, and the use is very inconvenient.
Meanwhile, in the embodiment, a part of the first sand making cavity 10 is located in the upper box 2, the other side is located in the lower box 3 and is located in the lower box 3, the bottom of the first sand making cavity is in a semi-arc structure, a part of the second sand making cavity 11 is located in the upper box 2, the other side is located in the lower box 3 and is located in the lower box 3, and the bottom of the second sand making cavity is in a semi-arc structure.
In actual use, the detachable grate 16 is laid on the semicircular arc-shaped structure in the lower box body and matched with the rotating mechanism to make sand.
In this embodiment, the partition structure is a partition plate 12, the partition plate 12 is disposed in the feeding cavity 9, the partition plate 12 can guide the raw material into the first sand making cavity 10 and the second sand making cavity 11, and the vertical projection of the partition plate 12 is located between the first sand making cavity 10 and the second sand making cavity 11.
The purpose of design like this, can effectively avoid the raw materials of treating processing to get into another system sand chamber through the division board that sets up.
In the in-service use, be provided with the guide rail between first system sand chamber and second system sand chamber usually, then insert the division board in the guide rail, realize dismantling, add man-hour to different raw materials and different parameter requirements when needs, insert the division board and process respectively, and add man-hour to same raw materials and same parameter requirements, then can take out the division board, become biax two storehouse system sand machine into biax single storehouse system sand machine.
In the embodiment, a specific composition of a rotating mechanism is provided, the rotating mechanism comprises a rotor, the rotor is driven to rotate by a motor arranged outside a sand making machine body 1, a first rotor 14 is arranged in a first sand making cavity 10, a rotating shaft of the first rotor 14 penetrates through a first through hole 6 on the sand making machine body 1 and rotates under the driving of a first motor 4, a second rotor 15 is arranged in a second sand making cavity 11, and a rotating shaft of the second rotor 15 penetrates through a second through hole 7 on the sand making machine body 1 and rotates under the driving of a second motor 5.
In the in-service use, the pivot of rotor is worn out from system sand machine body to the one end that is close to the motor is provided with the carousel, and the power take off end of motor passes through narrow V area, drives the carousel and rotates together with the rotor.
Meanwhile, in the embodiment, a specific structure of the sieve plate base is further disclosed, wherein the sieve plate base comprises a first grate frame 24, a second grate frame 25 and a third grate frame 26, the first grate frame 24, the second grate frame 25 and the third grate frame 26 are arranged in parallel, the second grate frame 25 is located between the first grate frame 24 and the third grate frame 26, the first grate frame 24, the second grate frame 25 and the third grate frame 26 are connected through angle steel 28, the upper surfaces of the first grate frame 24, the second grate frame 25 and the third grate frame 26 are working surfaces, the working surfaces are two symmetrical arc surfaces, and arc plates 27 are arranged on the working surfaces of the first grate frame 24, the second grate frame 25 and the third grate frame 26.
The purpose of this design is to provide a necessary carrier for the whole sieve plate base by three mutually parallel grate frames, and to achieve corresponding effects by using two grate frames in a part of usage scenarios, the purpose of using three grate frames is to lay two groups of grate bars side by side on the grate frames, while the use of two grate frames only lays one group of grate bars.
Meanwhile, the arranged arc plates protrude towards two sides, so that the grate bars can be conveniently installed on the arc plates, the edges of the arc surfaces of the upper surfaces of the first grate frame 24, the second grate frame 25 and the third grate frame 26 are respectively provided with a connecting steel plate 29, and the second grate frame is connected with the first grate frame and the third grate frame.
In this embodiment, the grate 16 includes grate plates 38, grate bars 36 and hook bodies 21, the grate bars 36 are disposed between the grate plates 38, and the hook bodies 21 are disposed at the bottom of the grate bars 36 and can be hooked on the circular arc plates 27.
In practical use, as shown in fig. 5, the hook body on the grate is hooked on the outward-protruding part of the arc plate, the adjacent grates are closely arranged, the grate positioned at the edge of the arc surface of the arc plate is extruded and limited by the grate pressing plate 32, and the grate pressing plate 32 is connected with the connecting steel plate through the pressing plate fixing bolt.
In some usage scenarios, in order to further increase the limitation of the grate bars, the limiting bolts 33 are usually used to pass through the grate bar pressing plate 32 and the grate bars located at the edge of the arc surface.
Meanwhile, in order to protect structures such as a grate pressure plate and a limiting bolt, a lining plate is usually additionally arranged on the grate pressure plate, so that the abrasion of broken sand on the structures during machine-made sand processing is avoided.
As shown in fig. 3 and 5, the sieve plate base is generally connected to the lower case 3 by round bars 35 and fixing bolts 31 at the lower portions of the first grate frame 24, the second grate frame 25, and the third grate frame 26.
In this embodiment, the grate plates 38 are circular arc-shaped, the bottom surfaces of the grate plates 38 can be attached to the circular arc plates 27, and gaps 37 are formed between adjacent screen bars 36.
In actual use, the grate plates with various specifications can be provided according to the requirement of the sand making of the processing machine. The gaps of the grate plates are different, and those skilled in the art can select the grate plates with proper sizes to install according to the processing requirements.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a big feeding biax system sand machine, includes system sand machine body (1), system sand machine body (1) comprises last box (2) and lower box (3), and goes up box (2) and can dismantle connection, its characterized in that with lower box (3): a first sand making cavity (10) and a second sand making cavity (11) are symmetrically arranged in the sand making machine body (1), and the first sand making cavity (10) and the second sand making cavity (11) are both communicated with the feeding cavity (9) at the top of the upper box body (2), the first sand making cavity (10) and the second sand making cavity (11) are both internally provided with a rotating mechanism, a detachable separation structure is arranged between the first sand making cavity (10) and the second sand making cavity (11), the bottoms of the first sand making cavity (10) and the second sand making cavity (11) are provided with adjustable sieve plate structures, the adjustable sieve plate structure comprises a sieve plate seat and grate bars (16), the sieve plate seat is arranged in the lower box body (3) of the sand making machine body (1), the grate bars (16) are arranged on the working surface of the sieve plate seat, and is detachably connected with the sieve plate seat, a plurality of grates (16) are arranged on the working surface of the sieve plate seat side by side, the sieve plate seat comprises a first grate frame (24), a second grate frame (25) and a third grate frame (26), the first grate frame (24), the second grate frame (25) and the third grate frame (26) are arranged in parallel, and the second grate frame (25) is positioned between the first grate frame (24) and the third grate frame (26), and the first grate frame (24), the second grate frame (25) and the third grate frame (26) are connected through angle steel (28) and a connecting steel plate (29).
2. A large-feed double-shaft sand making machine according to claim 1, characterized in that: one part of the first sand making cavity (10) is positioned in the upper box body (2), the other side of the first sand making cavity is positioned in the lower box body (3) and is positioned in the lower box body (3), the bottom of the first sand making cavity is of a semi-circular arc structure, one part of the second sand making cavity (11) is positioned in the upper box body (2), the other side of the second sand making cavity is positioned in the lower box body (3) and is positioned in the lower box body (3), and the bottom of the second sand making cavity is of a semi-circular arc structure.
3. A large feed twin shaft sand maker as claimed in claim 2, in which: the partition structure is a partition plate (12), the partition plate (12) is arranged in the feeding cavity (9), and the partition plate (12) can guide the raw materials into the first sand making cavity (10) and the second sand making cavity (11).
4. A large feed twin shaft sand maker as claimed in claim 3, in which: the vertical projection of the partition plate (12) is positioned between the first sand making cavity (10) and the second sand making cavity (11).
5. A large feed twin shaft sand maker as claimed in claim 4 in which: the rotating mechanism comprises a rotor, and the rotor is driven to rotate by a motor arranged outside the sand making machine body (1).
6. A large feed twin shaft sand maker as claimed in claim 5, in which: be provided with first rotor (14) in first system sand chamber (10), the pivot of first rotor (14) passes from first perforation (6) on system sand machine body (1) to rotate under the drive of first motor (4), be provided with second rotor (15) in second system sand chamber (11), the pivot of second rotor (15) passes from second perforation (7) on system sand machine body (1) to rotate under the drive of second motor (5).
7. A large feed twin shaft sand maker as claimed in claim 6 in which: the upper surfaces of the first grate frame (24), the second grate frame (25) and the third grate frame (26) are working surfaces, the working surfaces are two symmetrical arc surfaces, and arc plates (27) are arranged on the working surfaces of the first grate frame (24), the second grate frame (25) and the third grate frame (26).
8. A large feed twin shaft sand maker as claimed in claim 7, in which: the connecting steel plate (29) is arranged on the arc surface edges of the upper surfaces of the first grate frame (24), the second grate frame (25) and the third grate frame (26).
9. A large feed twin shaft sand maker as claimed in claim 8, in which: the grate (16) comprises grate plates (38), screen bars (36) and hook bodies (21), the screen bars (36) are arranged between the grate plates (38), the hook bodies (21) are arranged at the bottoms of the screen bars (36) and can be hooked on the circular arc plates (27), the grate plates (38) are arc-shaped, the bottom surfaces of the grate plates (38) can be attached to the circular arc plates (27), and gaps (37) are formed between the adjacent screen bars (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211016135.8A CN115350764A (en) | 2022-08-24 | 2022-08-24 | Large-feeding double-shaft sand making machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211016135.8A CN115350764A (en) | 2022-08-24 | 2022-08-24 | Large-feeding double-shaft sand making machine |
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| CN115350764A true CN115350764A (en) | 2022-11-18 |
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| CN202211016135.8A Pending CN115350764A (en) | 2022-08-24 | 2022-08-24 | Large-feeding double-shaft sand making machine |
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| GB355248A (en) * | 1930-05-19 | 1931-08-19 | Lionel George Holmes | Improvements in or relating to single roll grinding mills |
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