CN116921027B - A rod mill sand making machine - Google Patents
A rod mill sand making machineInfo
- Publication number
- CN116921027B CN116921027B CN202310670665.2A CN202310670665A CN116921027B CN 116921027 B CN116921027 B CN 116921027B CN 202310670665 A CN202310670665 A CN 202310670665A CN 116921027 B CN116921027 B CN 116921027B
- Authority
- CN
- China
- Prior art keywords
- rod
- piece
- rod mill
- transmission
- pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
-
- 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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
本发明公开了一种棒磨式制砂机，涉及制砂技术领域，该制砂机包括制砂机架、下托板和两个棒磨组件，两个棒磨组件分别铰接设在下托板的相对的两边侧部；还包括上横架和下压件，所述上横架设在制砂机架的顶端部且下压件设在上横架上，下压件用于向下抵压位于两个棒磨组件之间的石块，所述上横架上还设置有两个传动件，下压件在向下移动一段距离后与两个传动件相连接，每个棒磨组件的外壁上均设置有支臂件且两个支臂件顶部分别与两个传动件相连接。本发明结构简单，可始终以夹固棒磨的方式对石块逐渐磨成碎粒，随着石块体积的缩小，两个棒磨组件逐渐收拢并保持与石块抵持面，从而有效提高提高磨料碎粒度以及棒磨效率，实用性较强。
This invention discloses a rod mill sand making machine, relating to the field of sand making technology. The sand making machine includes a sand making frame, a lower support plate, and two rod mill assemblies, which are hinged to opposite sides of the lower support plate. It also includes an upper crossbeam and a lower pressure member. The upper crossbeam is located at the top of the sand making frame, and the lower pressure member is located on the upper crossbeam. The lower pressure member is used to press down on stones located between the two rod mill assemblies. Two transmission members are also provided on the upper crossbeam. After moving downwards a certain distance, the lower pressure member connects to the two transmission members. Each rod mill assembly has a support arm on its outer wall, and the tops of the two support arms are respectively connected to the two transmission members. This invention has a simple structure and can continuously grind stones into small particles by clamping the rod mill. As the volume of the stone decreases, the two rod mill assemblies gradually converge and maintain contact with the stone, thereby effectively improving the particle size of the abrasive and the efficiency of the rod mill, making it highly practical.
Description
Technical Field
The invention relates to the technical field of sand making, in particular to a rod mill type sand making machine.
Background
The sand is a main raw material in the construction industry, along with the high-speed development of the construction industry such as houses, roads, bridges and the like, the demand for the sand is increasing, people are taking natural sand from river beds and mountains for a long time, resources of the natural sand are exhausted, and a large amount of natural sand is dug, so that vegetation of river beds, dykes and sand mountains of a plurality of rivers are seriously damaged, and rock is ground into sand suitable for construction and industry by using machinery in the market at present.
The existing vertical shaft impact crusher breaks rock, and the working principle is that the material is divided into a material throwing at the middle part and a blanking at the periphery, a main shaft group drives a rotor group to rotate at high speed, the rotor group throws the material throwing at the middle part at high speed and collides with the blanking at the periphery, the rock is broken in a 'stone breaking' mode, the rock is broken by the vertical shaft impact crusher, the rock can be made into sand after being broken, the rock is broken in different sizes, and the difficulty of follow-up fine grinding is increased.
Disclosure of Invention
The invention aims to provide a rod mill type sand making machine, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The rod mill type sand making machine comprises a sand making machine frame, a lower supporting plate and two rod mill components, wherein the lower supporting plate is arranged on the sand making machine frame, a falling opening with a screen plate is arranged at the center of the lower supporting plate, the two rod mill components are respectively hinged to two opposite side parts of the lower supporting plate, the two rod mill components are used for clamping stones and grinding the stones in a roller mill rotating mode, the rod mill type sand making machine further comprises an upper transverse frame and a lower pressing piece, the upper transverse frame is arranged at the top end of the sand making machine frame, the lower pressing piece is arranged on the upper transverse frame, the lower pressing piece is used for downwards pressing stones between the two rod mill components, two transmission pieces are further arranged on the upper transverse frame, the lower pressing piece is always in a downward moving trend, the lower pressing piece is connected with the two transmission pieces after downwards moving for a certain distance, and the top of each rod mill component is respectively provided with a support arm piece and the tops of the two support arm pieces are connected with the two transmission pieces.
Based on the technical scheme, the invention also provides the following optional technical schemes:
In an alternative scheme, the rod mill assembly comprises a side plate and a plurality of roller mill pieces, wherein a transmission box is arranged at the top of the side plate, one end part of each of the plurality of rod mill rotating shafts extends into the transmission box in a rotating mode, two adjacent rod mill rotating shafts are in transmission connection through a gear transmission pair, a rod mill motor is further arranged on the transmission box, the output end of the rod mill motor is connected with one of the rod mill rotating shaft ends, and each rod mill rotating shaft is provided with a roller mill piece with a protrusion.
In an alternative scheme, a plurality of lower grinding rollers are arranged on the upper side of the falling opening, two ends of each lower grinding roller are respectively connected with two ends of the falling opening in a rotating mode, the lower grinding rollers can rotate and scrape the bottom of a stone block, and sand materials generated by rod grinding of the rod grinding assembly can be ground through the lower grinding rollers.
In an alternative scheme, two baffle plate members respectively positioned at two end parts of the falling opening are further arranged on the lower supporting plate, one end, close to the falling opening, of the baffle plate member is connected with the end face of the lower supporting plate in a damping rotation mode through a connecting support, a supporting member for supporting the baffle plate member is arranged on the side portion of the lower supporting plate, and the baffle plate member is in a horizontal state under the supporting of the supporting member.
In an alternative scheme, the lower pressing piece comprises a pressing rod piece, an upper plate piece and a pressing spring in a stretching state, wherein the pressing rod piece penetrates through the middle of the upper transverse frame in a sliding mode, the bottom end portion of the pressing rod piece is provided with a pressing portion, the upper plate piece is arranged at the top end portion of the pressing rod piece and is connected with the upper transverse frame through the pressing spring, and two end portions of the upper plate piece are respectively provided with a connecting part capable of being connected with the transmission piece.
In an alternative scheme, the upper plate is also provided with a heavy-object water tank, the sand making rack is provided with a water storage tank, and the water storage tank is communicated with the heavy-object water tank through a water guide pipe.
In an alternative scheme, the upper transverse frame comprises a fixed frame and a middle guide block, wherein the side part of the fixed frame is fixedly connected with the lower supporting plate, the middle guide block is arranged in the middle of the fixed frame, and a guide hole for the pressing rod to penetrate is formed in the middle of the middle guide block.
In an alternative scheme, the two ends of the upper plate are hinged with support rod pieces, the fixed frame is further provided with two groups of support grooves which are symmetrical through middle guide blocks, and the bottoms of the support rod pieces can be clamped into the support grooves.
In an alternative scheme, the end part of the support arm piece far away from the rod mill assembly is provided with a through hole along the length direction of the rod, the connecting part is a longitudinal rack, the transmission piece comprises a transmission wire rod piece and a deflector rod, the transmission wire rod piece is rotatably arranged on the fixed frame, the axis of the transmission wire rod piece is parallel to the length direction of the fixed frame, the transmission wire rod piece is provided with a spiral seat in spiral fit with the spiral seat and a transmission gear piece fixedly connected with the spiral seat, the connecting part corresponds to the transmission gear piece and can be meshed when the two parts are in contact, the deflector rod is fixedly connected to the side wall of the spiral seat and is in sliding fit with the fixed frame, and the end part of the deflector rod extends into the through hole on the corresponding support arm piece.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the rod mill component gradually rod-grinds the stone blocks in a rotary roller mill mode, sand of the rod mill falls on the screen plate at the falling opening and falls through the screen holes of the screen plate;
2. According to the invention, along with the gradual downward movement of the stone, the lower pressing piece is connected with the transmission piece after the lower pressing piece moves downwards and moves downwards for a certain distance, and the transmission piece drives the two rod grinding assemblies to be close by using the downward movement of the lower pressing piece as power, so that the rod grinding assemblies can clamp the stone and improve the contact surface between the rod grinding assemblies and the side wall of the stone, the grinding degree is improved, the grinding state is kept by walking, and the stone is completely rod ground into sand;
3. the invention has simple structure, can grind stone blocks into particles gradually in a manner of clamping the rod mill all the time, and along with the reduction of the volume of the stone blocks, the two rod mill components are gradually folded and kept on the supporting surface with the stone blocks, thereby effectively improving the grinding particle size and the rod mill efficiency, and having stronger practicability.
Drawings
Fig. 1 is a schematic view of the overall structure of the sand making machine according to an embodiment of the present invention.
FIG. 2 is a schematic illustration of a rod mill assembly in accordance with one embodiment of the invention.
Fig. 3 is a schematic view of a lower plate structure according to an embodiment of the present invention.
Fig. 4 is a schematic view of the upper cross frame structure in an embodiment of the present invention.
Fig. 5 is a schematic view showing a connection structure of the upper plate member and the strut members in one embodiment of the present invention.
Reference numerals notes sand making stand 100, lower blade 200, drop port 210, lower grinding roll 220, connection holder 230, retaining blade 240, support 250, rod mill assembly 300, side plate 310, rod mill shaft 320, grinding roll 330, gear drive pair 340, rod mill motor 350, drive box 360, upper cross frame 400, fixed frame 410, middle guide block 420, support groove 430, drive wire member 440, drive gear member 450, screw seat 460, toggle 470, lower press 500, pressure lever 510, upper plate 520, pressure spring 530, connection member 540, support lever 550, weight tank 560, water guide 570, water storage tank 580, support arm 600.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, in which like or identical parts are given the same reference numerals in the drawings or the description, and the shapes, thicknesses or heights of the respective parts may be enlarged or reduced in practical applications. The examples set forth herein are intended to be illustrative of the invention and are not intended to limit the scope of the invention. Any obvious modifications or alterations to the invention, as would be apparent, are made without departing from the spirit and scope of the present invention.
In one embodiment, as shown in fig. 1, the rod mill type sand making machine comprises a sand making machine frame 100, a lower supporting plate 200 and two rod mill assemblies 300, wherein the lower supporting plate 200 is arranged on the sand making machine frame 100, the center part of the lower supporting plate 200 is provided with a falling opening 210 with a screen plate, the two rod mill assemblies 300 are respectively hinged on two opposite side parts of the lower supporting plate 200, the two rod mill assemblies 300 are used for clamping stone blocks and grinding the stone blocks in a roller mill rotating manner, the rod mill type sand making machine further comprises an upper transverse frame 400 and a lower pressing piece 500, the upper transverse frame 400 is arranged at the top end part of the sand making machine frame 100, the lower pressing piece 500 is arranged on the upper transverse frame 400 and used for pressing the stone blocks between the two rod mill assemblies 300 downwards, the upper transverse frame 400 is also provided with two transmission pieces, the lower pressing piece 500 is always in a downward moving trend, the lower pressing piece 500 is connected with the two transmission pieces after being moved downwards for a distance, a support arm 600 is arranged on the outer wall of each rod mill assembly 300, and the top of the two transmission pieces 600 are respectively connected with the two support arms.
In the embodiment of the invention, stones are placed between two rod mill assemblies 300, the lower pressing piece 500 is pressed against the stones from the top, the side walls of the stones are always contacted with the rod mill assemblies 300 due to gravity and the pressing of the lower pressing piece 500, the rod mill assemblies 300 gradually roll the stones in a roll mill manner, sand of the rod mill falls on the screen plates at the falling openings 210 and falls through the screen holes of the screen plates, the volumes of the stones are gradually reduced under the rod mill effect of the rod mill assemblies 300, the stones gradually move downwards to ensure that the side walls of the stones are always contacted with the rod mill assemblies 300, the lower pressing piece 500 is connected with a transmission piece after the downward movement of the stones and the downward movement of the lower pressing piece 500 for a certain distance, and the transmission piece is moved downwards to drive the two rod mill assemblies 300 to be close together so that the rod mill assemblies 300 can clamp the stones and improve the contact surface of the rod mill assemblies 300 and the side walls of the stones, thereby improving the grinding degree and maintaining the grinding state when the stones are completely ground.
In one embodiment, as shown in fig. 1 and 2, the rod mill assembly 300 includes a side plate 310 and a plurality of grinding rollers 330, the top of the side plate 310 has a transmission box 360, one end of each of the plurality of rod mill shafts 320 extends into the transmission box 360 in a rotating manner, two adjacent rod mill shafts 320 are connected in a transmission manner through a gear transmission pair 340, a rod mill motor 350 is further disposed on the transmission box 360, the output end of the rod mill motor 350 is connected with the end of one of the rod mill shafts 320, and each of the rod mill shafts 320 is provided with a grinding roller 330 with a protrusion.
In one embodiment, as shown in fig. 3, a plurality of lower grinding rollers 220 are disposed on the upper side of the drop port 210, and two ends of the lower grinding rollers 220 are respectively rotatably connected with two ends of the drop port 210, the lower grinding rollers 220 can rotate and scrape the bottom of the stone, and the lower grinding rollers 220 can also grind the sand generated by the rod grinding of the rod grinding assembly 300, and the arrangement of the lower grinding rollers 220 can continuously refine the sand and scrape the bottom of the stone which cannot be contacted by the two rod grinding assemblies 300, so that the comprehensiveness of the stone abrasive is improved.
In one embodiment, as shown in fig. 3, two baffle plate members 240 are further disposed on the lower support plate 200 and are respectively located at two ends of the drop port 210, one end of the baffle plate member 240 near the drop port 210 is connected with the end surface of the lower support plate 200 in a damping rotation manner through a connection support 230, a support member 250 for supporting the baffle plate member 240 is disposed at the side portion of the lower support plate 200, and the baffle plate member 240 is in a horizontal state under the support of the support member 250.
In one embodiment, as shown in fig. 1 and 5, the lower pressing member 500 includes a pressing rod 510, an upper plate 520 and a pressing spring 530 in a stretched state, the pressing rod 510 is slidably inserted through the middle of the upper cross frame 400, the bottom end of the pressing rod 510 has a pressing portion, the upper plate 520 is disposed at the top end of the pressing rod 510 and is connected between the upper plate 520 and the upper cross frame 400 by the pressing spring 530, and both ends of the upper plate 520 have connecting members 540 capable of being connected to a transmission member, in this embodiment, since the pressing portion is always pressed against the top of a stone block, the pressing spring 530 is always in a pulling rope state, when the stone block is gradually contracted and moves downward, under the elastic force of the pressing spring 530, the upper plate 520 and the pressing rod 510 move downward, the connecting members 540 move downward along with the upper plate 520 and are gradually connected to the transmission member, and after the upper plate 520 is connected to the transmission member, the upper plate 520 can make the two support arm members 600 move toward each other.
In one embodiment, as shown in fig. 1, the upper plate 520 is further provided with a weight water tank 560, the sand making frame 100 is provided with a water storage tank 580, the water storage tank 580 is communicated with the weight water tank 560 through a water guide pipe 570, and in the embodiment of the invention, the water storage tank 580 can inject water into the weight water tank 560 through the water guide pipe 570, so that the overall weight of the weight water tank 560 is adjusted, the pressing force of the pressing piece 500 on stones is further adjusted, the pressure between the stones and the rod mill assembly 300 is improved, and the rod mill stones are facilitated.
In one embodiment, as shown in fig. 1 and 4, the upper cross frame 400 includes a fixed frame 410 and a middle guide block 420, wherein the side portion of the fixed frame 410 is fixedly connected with the lower support plate 200, the middle guide block 420 is disposed in the middle of the fixed frame 410, and a guide hole for the pressing rod 510 to penetrate is formed in the middle of the middle guide block 420;
in a preferred embodiment of the present invention, the two ends of the upper plate 520 are hinged with the brace members 550, the fixed frame 410 is further provided with two sets of support grooves 430 symmetrical with the middle guide block 420, and the bottoms of the brace members 550 can be blocked into the support grooves 430, wherein before the stone is placed between the two rod mill assemblies 300, the support members 510 and the upper plate 520 are supported in a high position by blocking the bottom ends of the brace members 550 into the support grooves 430, so that the bottom ends of the brace members 510 are prevented from obstructing the stone from entering between the two rod mill assemblies 300.
In a preferred embodiment of the present invention, the end of the arm member 600 away from the rod mill assembly 300 is provided with a through hole along the length direction of the rod, the connecting member 540 is a longitudinal rack, the transmission member comprises a transmission wire member 440 and a deflector rod 470, the transmission wire member 440 is rotatably arranged on the fixed frame 410, the axis of the transmission wire member 440 is parallel to the length direction of the fixed frame 410, the transmission wire member 440 is provided with a screw seat 460 in screw fit with the transmission wire member 440 and a transmission gear member 450 fixedly connected with the screw seat 460, the connecting member 540 corresponds to the transmission gear member 450 and can be meshed with the transmission gear member 450 when contacting, a deflector rod 470 is fixedly connected to the side wall of the screw seat 460, the deflector rod 470 is in sliding fit with the fixed frame 410, the end of the deflector rod 470 extends into the through hole on the corresponding arm member 600, and in the embodiment of the present invention, when the connecting member 540 moves up or moves down along with the upper plate member 520, the connecting member 540 and the transmission gear member 450 can be meshed to enable the transmission wire member 440 to rotate the transmission wire member 440, the screw seat 460 drives the screw seat 460 to move, the screw rod 460 rotates on the upper plate 460, and the deflector rod 460 rotates the upper plate 470 and the upper plate 300 around the upper plate 300 or the lower plate assembly by the deflector rod 470 so as to be conveniently clamped by the rotation of the upper plate assembly 300 or the lower plate assembly.
In the above embodiment, there is provided a rod mill type sand making method, in which a stone is placed between two rod mill assemblies 300 and a pressing member 500 is pressed against the stone from the top, the side wall of the stone is always in contact with the rod mill assemblies 300 due to gravity and the pressing of the pressing member 500, the rod mill assemblies 300 gradually roll the stone in a roll mill manner, sand of the rod mill falls on a screen plate at a falling opening 210 and falls through the screen holes of the screen plate, the volume of the stone is gradually reduced under the rod mill action of the rod mill assemblies 300, so that the stone gradually moves down to ensure that the side wall of the stone is always in contact with the rod mill assemblies 300, the pressing member 500 is connected with a transmission member as the stone gradually moves down and the pressing member 500 moves down a distance, and the transmission member moves down to power the two rod mill assemblies 300 to draw the two rod mill assemblies 300 together, so that the rod mill assemblies 300 can clamp the stone and raise the contact surface of the rod mill assemblies 300 with the side wall of the stone, thereby raising the grinding material and the grinding state of the abrasive is maintained.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (6)
1. The rod mill type sand making machine comprises a sand making machine frame, a lower supporting plate and two rod mill components, wherein the lower supporting plate is arranged on the sand making machine frame, and the center part of the lower supporting plate is provided with a falling opening with a screen plate;
the device also comprises an upper transverse frame and a lower pressing piece;
the upper cross frame is arranged at the top end of the sand making machine frame, the lower pressing piece is arranged on the upper cross frame and is used for pressing down the stone block between the two rod mill components;
the upper transverse frame is also provided with two transmission parts, the lower pressing part always moves downwards, and the lower pressing part is connected with the two transmission parts after moving downwards for a certain distance;
The outer wall of each rod mill component is provided with a support arm part, and the tops of the two support arm parts are respectively connected with the two transmission parts;
The lower pressing piece comprises a pressing rod piece, an upper plate piece and a pressing spring in a stretching state;
The pressing rod piece penetrates through the middle of the upper transverse frame in a sliding manner, the bottom end part of the pressing rod piece is provided with a pressing part, and the upper plate piece is arranged at the top end part of the pressing rod piece and is connected with the upper transverse frame through a pressing spring;
Both end parts of the upper plate are provided with connecting parts which can be connected with the transmission parts;
The upper transverse frame comprises a fixed frame and a middle guide block;
The side part of the side of the fixed frame is fixedly connected with the lower supporting plate, the middle guide block is arranged in the middle of the fixed frame, and the middle part of the middle guide block is provided with a guide hole for the pressing rod piece to penetrate through;
the end part of the support arm piece, which is far away from the rod mill assembly, is provided with a through hole along the length direction of the rod;
The connecting part is a longitudinal rack;
the transmission piece comprises a transmission wire rod piece and a deflector rod;
The transmission screw rod piece is rotatably arranged on the fixed frame, and the axis of the transmission screw rod piece is parallel to the length direction of the fixed frame;
The transmission wire rod piece is provided with a spiral seat in spiral fit with the transmission wire rod piece and a transmission gear piece fixedly connected with the transmission wire rod piece, and the connecting part corresponds to the transmission gear piece and can be meshed when being contacted with the transmission gear piece;
the side wall of the spiral seat is fixedly connected with a deflector rod which is in sliding fit with the fixed frame, and the end part of the deflector rod extends into the through hole on the corresponding support arm piece.
2. The rod mill of claim 1 wherein the rod mill assembly includes a side plate member and a plurality of mill roll members;
the top of the side plate is provided with a transmission box, and one end parts of a plurality of rod mill rotating shafts extend into the transmission box in a rotating manner;
The two adjacent rod mill rotating shafts are in transmission connection through a gear transmission pair, a rod mill motor is further arranged on the transmission box, and the output end of the rod mill motor is connected with the end part of one rod mill rotating shaft;
Each rod grinding rotating shaft is provided with a grinding roller piece with a bulge.
3. The rod mill type sand making machine according to claim 1, wherein a plurality of lower grinding rollers are arranged on the upper side of the falling opening, and two ends of each lower grinding roller are respectively and rotatably connected with two ends of the falling opening;
The lower grinding roller can rotate and scrape the bottom of the stone block and can also roll sand produced by the rod mill of the rod mill assembly.
4. The rod mill type sand making machine according to claim 1, wherein two baffle plate members respectively positioned at two ends of the falling port are further arranged on the lower supporting plate, and one end of the baffle plate member close to the falling port is in damping rotation connection with the end face of the lower supporting plate through a connecting support;
The lateral part of the lower supporting plate is provided with a supporting piece for supporting the baffle plate, and the baffle plate is in a horizontal state under the support of the supporting piece.
5. The rod mill type sand making machine according to claim 1, wherein the upper plate is further provided with a heavy water tank, a water storage tank is arranged on the sand making machine frame, and the water storage tank is communicated with the heavy water tank through a water guide pipe.
6. The rod mill type sand making machine according to claim 1, wherein the two ends of the upper plate are hinged with support rods, two groups of support grooves which are symmetrical with the middle guide blocks are further arranged on the fixed frame, and the bottoms of the support rods can be clamped into the support grooves.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310073729 | 2023-02-07 | ||
| CN2023100737290 | 2023-02-07 |
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| CN116921027A CN116921027A (en) | 2023-10-24 |
| CN116921027B true CN116921027B (en) | 2025-12-30 |
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| CN202310670665.2A Active CN116921027B (en) | 2023-02-07 | 2023-06-08 | A rod mill sand making machine |
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| CN213498396U (en) * | 2020-08-19 | 2021-06-22 | 徐金花 | Two-sided rust cleaning burnishing device of building steel sheet |
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| CN209848958U (en) * | 2019-03-20 | 2019-12-27 | 张清磊 | Environment-friendly waste crushing device |
| CN210496538U (en) * | 2019-07-03 | 2020-05-12 | 南通佳烁环保科技有限公司 | Reducing mechanism is retrieved in environmental protection |
| CN112589581B (en) * | 2020-12-07 | 2022-02-11 | 阜南县中泰工艺品有限公司 | Double-side-surface grinding device for ironwork machining and working method thereof |
| CN216538845U (en) * | 2021-11-17 | 2022-05-17 | 武穴市民本矿产资源开发有限公司 | Sand making machine for ore crushing |
| CN114310609B (en) * | 2021-12-18 | 2022-12-09 | 杭州恒途钢结构有限公司 | Steel plate rust removal equipment and steel plate rust removal method |
| CN114515617A (en) * | 2022-01-20 | 2022-05-20 | 枣庄鑫金山智能装备有限公司 | Screenable multistage crushing crusher |
| CN114950618A (en) * | 2022-06-14 | 2022-08-30 | 靖文青 | Coal mining and crushing device for coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109663635A (en) * | 2018-12-24 | 2019-04-23 | 孟庆蕾 | Residue-free grinding machine for blocky traditional Chinese medicines |
| CN111716204A (en) * | 2020-07-01 | 2020-09-29 | 徐子桐 | A wood surface fine processing system |
| CN213498396U (en) * | 2020-08-19 | 2021-06-22 | 徐金花 | Two-sided rust cleaning burnishing device of building steel sheet |
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| CN116921027A (en) | 2023-10-24 |
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