CN113399255B - Automatic degree is auxiliary assembly for civil engineering that degree of automation is high - Google Patents

Automatic degree is auxiliary assembly for civil engineering that degree of automation is high Download PDF

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Publication number
CN113399255B
CN113399255B CN202110675650.6A CN202110675650A CN113399255B CN 113399255 B CN113399255 B CN 113399255B CN 202110675650 A CN202110675650 A CN 202110675650A CN 113399255 B CN113399255 B CN 113399255B
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fluted disc
driving
rod
frame body
transmission
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CN113399255A (en
Inventor
潘涛
巩颖辉
杨静
刘红伟
魏铭
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/30Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses auxiliary equipment for civil engineering with high automation degree, relates to the field of civil engineering, and aims at solving the problem that the existing civil engineering building raw material screening efficiency is low, so that the civil engineering construction period is long. The automatic auxiliary screening device can replace manual operation to automatically assist screening operation of sand and stone raw materials in civil engineering construction, not only can reduce labor intensity of construction workers, but also can effectively improve screening efficiency of sand and stone, and is beneficial to shortening construction period of civil engineering construction.

Description

Automatic degree is auxiliary assembly for civil engineering that degree of automation is high
Technical Field
The invention relates to the field of civil engineering, in particular to auxiliary equipment for civil engineering, which has high automation degree.
Background
Civil engineering is a generic term for science and technology in building various types of earth engineering facilities. It refers to both the materials and equipment used and the technical activities of surveying, designing, constructing, maintaining, repairing, etc. performed, as well as the objects of engineering construction. I.e., built on the ground or underground, land, various engineering facilities directly or indirectly serving human life, production, military, scientific research, such as houses, roads, railways, pipes, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage, protection engineering, etc. Civil engineering refers to various technical works such as investigation, planning, design, construction, installation and maintenance and the like and finished engineering entities thereof for building, constructing or expanding various engineering besides house construction.
Before carrying out civil engineering construction, need handle its raw materials, most common is grit screening operation, and traditional grit screening is mostly through the manual work with the grit raw materials put into on the screen cloth and screen cloth, and can't effectually export the screen cloth with the grit of screening out at the in-process of screening to through manpower operation inefficiency, seriously influence civil engineering construction cycle, consequently, in order to solve this kind of problem, we have proposed a auxiliary assembly for civil engineering that degree of automation is high.
Disclosure of Invention
The auxiliary equipment for civil engineering provided by the invention has high automation degree, and solves the problems of long civil engineering construction period caused by low screening efficiency of the existing civil engineering construction raw materials.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the auxiliary equipment for civil engineering with high automation degree comprises a feed box, a frame body, support plates and a screen plate, wherein two support plates which are symmetrically distributed are fixedly arranged at the bottom end of the feed box, the frame body is rotatably arranged between the two support plates, and the screen plate is arranged in the frame body;
the bottom end of the feed box is provided with a discharge hole along the length direction of the feed box, and two symmetrically distributed blanking plates are rotatably arranged at the bottom end of the feed box;
one of the support plates is fixedly provided with a driving motor, an output shaft of the driving motor is fixedly connected with a transmission rod, the transmission rod is positioned below the frame body, and a transmission mechanism is arranged between a rod body of the transmission rod and a rotating shaft of the frame body.
Preferably, the transmission mechanism comprises a first driving fluted disc, a first driven fluted disc, a second driven fluted disc, a transmission fluted disc and a second driving fluted disc, wherein the first driving fluted disc and the second driving fluted disc are fixedly sleeved on a rod body of the transmission rod, the first driving fluted disc and the second driving fluted disc are respectively positioned at two sides of the support plate, and two end rotating shafts of the frame body penetrate through the support plate and extend to the other side of the support plate to be fixedly connected with the first driven fluted disc and the second driven fluted disc respectively.
Preferably, the first driving gear disc and the first driven gear disc are located at the same side, and half of the circumferential side walls of the first driving gear disc and the first driven gear disc are provided with first gear blocks and meshed with each other, the second driving gear disc and the second driven gear disc are located at the same side, a transmission gear disc is rotatably installed between the second driving gear disc and the second driven gear disc, half of the circumferential side walls of the second driven gear disc is provided with second gear blocks, and the transmission gear disc is meshed with the second driving gear disc and the second gear blocks on the second driven gear disc.
Preferably, the main belt pulley is fixedly sleeved on the rod body of the transmission rod, the main belt pulley is positioned on one side, far away from the support plate, of the first driving fluted disc, the two support plates are rotatably provided with the reciprocating screw rod, one end of the reciprocating screw rod penetrates through the support plate, close to one side of the driving motor, of the reciprocating screw rod, the auxiliary belt pulley is fixedly connected with the main belt pulley, and a transmission belt is connected between the main belt pulley and the auxiliary belt pulley.
Preferably, the bottom of the feed box is slidably provided with two pushing plates which are symmetrically distributed, the top end of the pushing plate is provided with a U-shaped groove with the width matched with that of the blanking plate, the reciprocating screw rod penetrates through the pushing plate, and the rod body of the reciprocating screw rod is provided with two sections of thread grooves with opposite directions.
Preferably, the rod body of the reciprocating screw rod is fixedly sleeved with two limit plates which are symmetrically distributed near the center of the feed box.
Preferably, the top end of the push plate is fixedly connected with two symmetrically distributed sliding blocks, the bottom end of the feed box is provided with two groups of symmetrically distributed sliding grooves, the sliding grooves are arranged on two sides of the discharge hole, and the sliding blocks are slidably mounted in the sliding grooves.
Preferably, the two sides of the frame body are provided with impurity removing openings, the impurity removing openings are provided with baffle plates through connecting rods in a rotating mode, and the two ends of the connecting rods are fixedly connected with gear plates outside the frame body.
Preferably, the two sides of the support plate are fixedly connected with arc plates, third tooth blocks which are uniformly distributed are fixedly arranged on the inner walls of the arc plates, and the gear plate is meshed with the third tooth blocks on the inner walls of the arc plates.
The beneficial effects of the invention are as follows:
1. the main belt pulley is driven to rotate through the driving motor, the auxiliary belt pulley can be driven to drive the reciprocating screw rod to rotate, the pushing plate is driven to be matched with the blanking plate, intermittent opening and closing of a discharge hole at the bottom end of the material box are achieved, screening operation is achieved above the screen plate which is evenly led into the frame body through raw materials in the material box, the frame body can be driven to drive the screen plate to shake and screen through the cooperation of the driving fluted disc and the driven fluted disc, compared with manual operation, screening efficiency of the device on civil engineering sand and stone raw materials is effectively improved, and screen plate blocking is avoided.
2. Through the cooperation of the tooth piece that sets up on arc and the toothed disc to can make the framework realize the rotation of baffle at the in-process that rocks, open the edulcoration mouth on the framework, realize the derivation purpose of the large granule grit raw materials of sieving the sieve, avoid its piling up on the inside sieve of framework.
To sum up, the device can replace the manual work to carry out automatic supplementary screening operation to the grit raw materials of civil engineering construction, not only can reduce construction workman's intensity of labour, can effectually improve the screening efficiency of grit simultaneously, helps shortening the time limit for a project of civil engineering construction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a semi-bottom view of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a top view of the bin and blanking plate connection structure of the present invention;
FIG. 5 is a schematic view of the frame and screen plate mounting structure of the present invention;
fig. 6 is a schematic view of the overall frame structure of the present invention.
Reference numerals in the drawings: 1. a feed box; 2. a driving motor; 3. a frame; 4. a baffle; 5. an arc-shaped plate; 6. a gear plate; 7. a support plate; 8. a sieve plate; 9. a secondary pulley; 10. a first driven toothed disc; 11. a first drive sprocket; 12. a main pulley; 13. a transmission rod; 14. a second driven toothed disc; 15. a transmission fluted disc; 16. a second driving fluted disc; 17. a blanking plate; 18. a reciprocating screw rod; 19. a push plate; 20. a chute; 21. a slide block; 22. and (5) connecting a rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1, 2, 5 and 6, an auxiliary device for civil engineering with high automation degree comprises a feed box 1, a frame body 3, support plates 7 and a screen plate 8, wherein two support plates 7 which are symmetrically distributed are fixedly arranged at the bottom end of the feed box 1, the frame body 3 is rotatably arranged between the two support plates 7, and the screen plate 8 is arranged in the frame body 3;
the bottom end of the feed box 1 is provided with a discharge hole along the length direction of the feed box, and the bottom end of the feed box 1 is rotatably provided with two symmetrically distributed blanking plates 17;
the side wall of one of the support plates 7 is fixedly provided with a driving motor 2, an output shaft of the driving motor 2 is fixedly connected with a transmission rod 13, the transmission rod 13 is positioned below the frame body 3, and a transmission mechanism is arranged between a rod body of the transmission rod 13 and a rotating shaft of the frame body 3.
The transmission mechanism comprises a first driving fluted disc 11, a first driven fluted disc 10, a second driven fluted disc 14, a transmission fluted disc 15 and a second driving fluted disc 16, the first driving fluted disc 11 and the second driving fluted disc 16 are fixedly sleeved on a rod body of the transmission rod 13, the first driving fluted disc 11 and the second driving fluted disc 16 are respectively positioned at two sides of the two support plates 7, two end rotating shafts of the frame body 3 penetrate through the support plates 7 and extend to the other sides of the support plates, and the first driven fluted disc 10 and the second driven fluted disc 14 are respectively fixedly connected.
The first driving fluted disc 11 and the first driven fluted disc 10 are located the homonymy, and half of the circumference lateral wall of first driving fluted disc 11 and first driven fluted disc 10 all is provided with first tooth piece, and intermeshing, and second driving fluted disc 16 and second driven fluted disc 14 are located the homonymy, and rotate between second driving fluted disc 16 and the second driven fluted disc 14 and install transmission fluted disc 15, and half of the circumference lateral wall of second driven fluted disc 14 is provided with the second tooth piece, and transmission fluted disc 15 and second driving fluted disc 16 and the second tooth piece meshing on the second driven fluted disc 14.
When the sand and stone raw materials in the feed box 1 fall to the upper part of the screen plate 8 in the frame body 3 through the discharge hole, the driving motor 2 is started simultaneously, the driving motor 2 drives the transmission rod 13 to rotate, the transmission rod 13 drives the first driving fluted disc 11 to rotate, the first driving fluted disc 11 is meshed with the toothed blocks on the first driven fluted disc 10 to enable the first driven fluted disc 10 to rotate, so that the first driven fluted disc 10 drives the frame body 3 to rotate, meanwhile, the second driven fluted disc 14 rotates along with the first driven fluted disc 10, so that the second toothed blocks on the second driven fluted disc 14 are separated from the toothed blocks on the driving fluted disc 15, when the toothed blocks on the first driving fluted disc 11 are separated from the toothed blocks on the first driven fluted disc 11, the frame body 3 reversely rotates to an initial state, the transmission rod 13 continuously drives the first driving fluted disc 11 and the second driving fluted disc 16 to rotate, the toothed blocks on the driving fluted disc 15 are meshed with the second toothed blocks on the second driven fluted disc 14, the second driven fluted disc 14 is driven to reversely rotate, and the frame body 3 is driven reversely to rotate, and the sand and stone raw materials in the frame body 3 is screened effectively.
Example two
Referring to fig. 1-4 and 6, a main belt pulley 12 is fixedly sleeved on a rod body of a transmission rod 13, the main belt pulley 12 is positioned on one side of a first driving fluted disc 11, which is far away from the support plates 7, a reciprocating screw rod 18 is rotatably installed between the two support plates 7, one end of the reciprocating screw rod 18 penetrates through the support plate 7, which is close to one side of the driving motor 2, and is fixedly connected with a secondary belt pulley 9, and a transmission belt is connected between the main belt pulley 12 and the secondary belt pulley 9.
The bottom sliding mounting of workbin 1 has two push plates 19 that are symmetrical distribution, and the U type groove that width and blanking plate 17 match is seted up on the top of push plate 19, and reciprocating lead screw 18 runs through push plate 19 setting, and is equipped with two sections opposite screw thread grooves on the body of rod of reciprocating lead screw 18, and the body of rod of reciprocating lead screw 18 is close to workbin 1 central point put fixedly and has cup jointed two limiting plates that are symmetrical distribution.
The top fixedly connected with of push pedal 19 is two sliders 21 that are symmetrical distribution, and the bottom of workbin 1 is equipped with two sets of spouts 20 that are symmetrical distribution, and spout 20 is located the both sides setting of discharge gate, and slider 21 slidable mounting is in the inside of spout 20.
When driving motor 2 drives transfer line 13 to rotate, transfer line 13 drives main belt pulley 12 simultaneously and rotates, and main belt pulley 12 passes through drive belt and drives vice belt pulley 9 and rotate, drives reciprocating screw 18 and rotates then, drives push pedal 19 and reciprocates in workbin 1 bottom to can make blanking plate 17 reciprocating rotation, realize the intermittent type nature of the discharge gate of workbin 1 below and open and close, realize even unloading, help improving the screening efficiency of grit raw materials.
Example III
Referring to fig. 1, 2, 5 and 6, the impurity removing openings are formed in two sides of the frame body 3, the baffle 4 is rotatably installed at the impurity removing openings through the connecting rod 22, two ends of the connecting rod 22 extend to the outer portion of the frame body 3 and are fixedly connected with the gear disc 6, the arc-shaped plates 5 are fixedly connected to two sides of the support plate 7, third tooth blocks which are uniformly distributed are fixedly installed on the inner walls of the arc-shaped plates 5, and the gear disc 6 is meshed with the third tooth blocks on the inner walls of the arc-shaped plates 5.
In the process of rotating the frame body 3, the tooth blocks on the gear disc 6 on the side wall of the frame body 3 are meshed with the third tooth blocks on the arc plate 5, so that the gear disc 6 can rotate, then the connecting rod 22 is driven to rotate, the connecting rod 22 drives the baffle 4 to rotate, in the process of rotating the frame body 3, the impurity removing opening is opened, and large-particle sand and stone raw materials screened out can be guided out from the impurity removing opening, and accumulation of the large-particle sand and stone raw materials in the frame body 3 is avoided.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (1)

1. The auxiliary equipment for civil engineering with high automation degree comprises a feed box (1), a frame body (3), support plates (7) and a screen plate (8), and is characterized in that two support plates (7) which are symmetrically distributed are fixedly arranged at the bottom end of the feed box (1), the frame body (3) is rotatably arranged between the two support plates (7), and the screen plate (8) is arranged in the frame body (3);
the bottom end of the feed box (1) is provided with a discharge hole along the length direction of the feed box, and the bottom end of the feed box (1) is rotatably provided with two symmetrically distributed blanking plates (17);
a driving motor (2) is fixedly arranged on the side wall of one support plate (7), a transmission rod (13) is fixedly connected with an output shaft of the driving motor (2), the transmission rod (13) is positioned below the frame body (3), and a transmission mechanism is arranged between the rod body of the transmission rod (13) and the rotating shaft of the frame body (3);
the transmission mechanism comprises a first driving fluted disc (11), a first driven fluted disc (10), a second driven fluted disc (14), a transmission fluted disc (15) and a second driving fluted disc (16), wherein the first driving fluted disc (11) and the second driving fluted disc (16) are fixedly sleeved on a rod body of the transmission rod (13), the first driving fluted disc (11) and the second driving fluted disc (16) are respectively positioned at two sides of the support plate (7), and rotating shafts at two ends of the frame body (3) penetrate through the support plate (7) and extend to the other side of the support plate to be fixedly connected with the first driven fluted disc (10) and the second driven fluted disc (14);
the first driving fluted disc (11) and the first driven fluted disc (10) are positioned on the same side, a first tooth block is arranged on one half of the circumferential side walls of the first driving fluted disc (11) and the first driven fluted disc (10) and meshed with each other, the second driving fluted disc (16) and the second driven fluted disc (14) are positioned on the same side, a transmission fluted disc (15) is rotatably arranged between the second driving fluted disc (16) and the second driven fluted disc (14), a second tooth block is arranged on one half of the circumferential side walls of the second driven fluted disc (14), and the transmission fluted disc (15) is meshed with the second driving fluted disc (16) and the second tooth block on the second driven fluted disc (14);
a main belt pulley (12) is fixedly sleeved on a rod body of the transmission rod (13), the main belt pulley (12) is positioned on one side, far away from the support plates (7), of the first driving fluted disc (11), a reciprocating screw rod (18) is rotatably arranged between the two support plates (7), one end of the reciprocating screw rod (18) penetrates through the support plate (7) close to one side of the driving motor (2), an auxiliary belt pulley (9) is fixedly connected, and a transmission belt is connected between the main belt pulley (12) and the auxiliary belt pulley (9);
the bottom end of the feed box (1) is slidably provided with two symmetrically distributed push plates (19), the top end of each push plate (19) is provided with a U-shaped groove with the width matched with that of the blanking plate (17), the reciprocating screw rod (18) penetrates through the push plates (19), and a rod body of the reciprocating screw rod (18) is provided with two sections of thread grooves with opposite directions;
the rod body of the reciprocating screw rod (18) is fixedly sleeved with two limit plates which are symmetrically distributed near the center of the feed box (1);
the top end of the push plate (19) is fixedly connected with two symmetrically distributed sliding blocks (21), two groups of symmetrically distributed sliding grooves (20) are formed in the bottom end of the feed box (1), the sliding grooves (20) are arranged on two sides of the discharge hole, and the sliding blocks (21) are slidably arranged in the sliding grooves (20);
the two sides of the frame body (3) are provided with impurity removing openings, the impurity removing openings are rotatably provided with baffle plates (4) through connecting rods (22), and the two ends of each connecting rod (22) extend to the outside of the frame body (3) and are fixedly connected with gear discs (6);
both sides of the support plate (7) are fixedly connected with an arc-shaped plate (5), third tooth blocks which are uniformly distributed are fixedly arranged on the inner wall of the arc-shaped plate (5), and the gear disc (6) is meshed with the third tooth blocks on the inner wall of the arc-shaped plate (5).
CN202110675650.6A 2021-06-18 2021-06-18 Automatic degree is auxiliary assembly for civil engineering that degree of automation is high Active CN113399255B (en)

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CN113399255B true CN113399255B (en) 2024-01-12

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR209128A1 (en) * 1975-09-24 1977-03-31 Salete F UNIVERSAL MODULAR SCREENING SCREENING MACHINE FOR CLEANING, SEPARATING AND SELECTING DIFFERENT KINDS OF GRAINS, SEEDS AND GRANULATED AND POWDERY MINERAL PRODUCTS
JPH0910623A (en) * 1995-06-30 1997-01-14 Chichibu Onoda Cement Corp Lumpy material pulverizer and method thereof
CN208554517U (en) * 2018-04-04 2019-03-01 中源新能(天津)科技发展有限公司 A kind of damping second level smashing and grinding type processing of crude drugs device
CN208699712U (en) * 2018-08-21 2019-04-05 舒逸凡 A kind of civil engineering pipe fitting rack
CN110354946A (en) * 2019-08-09 2019-10-22 诸暨高宗自动化科技有限公司 A kind of manufacture of cement multilevel grinding device
CN211917397U (en) * 2020-04-09 2020-11-13 天津市江源塑胶制品有限公司 Raw materials screening plant of plastic products production
CN212216175U (en) * 2020-03-27 2020-12-25 广东弘信建设有限公司 Gravel and sand screening plant for building engineering
CN213133980U (en) * 2020-09-02 2021-05-07 广东粤创建材发展有限公司 Vibrating screen machine
CN213376862U (en) * 2020-08-31 2021-06-08 无锡五谷食代科技有限公司 Grinding device is used in production of five cereals powder

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR209128A1 (en) * 1975-09-24 1977-03-31 Salete F UNIVERSAL MODULAR SCREENING SCREENING MACHINE FOR CLEANING, SEPARATING AND SELECTING DIFFERENT KINDS OF GRAINS, SEEDS AND GRANULATED AND POWDERY MINERAL PRODUCTS
JPH0910623A (en) * 1995-06-30 1997-01-14 Chichibu Onoda Cement Corp Lumpy material pulverizer and method thereof
CN208554517U (en) * 2018-04-04 2019-03-01 中源新能(天津)科技发展有限公司 A kind of damping second level smashing and grinding type processing of crude drugs device
CN208699712U (en) * 2018-08-21 2019-04-05 舒逸凡 A kind of civil engineering pipe fitting rack
CN110354946A (en) * 2019-08-09 2019-10-22 诸暨高宗自动化科技有限公司 A kind of manufacture of cement multilevel grinding device
CN212216175U (en) * 2020-03-27 2020-12-25 广东弘信建设有限公司 Gravel and sand screening plant for building engineering
CN211917397U (en) * 2020-04-09 2020-11-13 天津市江源塑胶制品有限公司 Raw materials screening plant of plastic products production
CN213376862U (en) * 2020-08-31 2021-06-08 无锡五谷食代科技有限公司 Grinding device is used in production of five cereals powder
CN213133980U (en) * 2020-09-02 2021-05-07 广东粤创建材发展有限公司 Vibrating screen machine

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