CN111807765A - Mine tailing brick for road and preparation method thereof - Google Patents
Mine tailing brick for road and preparation method thereof Download PDFInfo
- Publication number
- CN111807765A CN111807765A CN202010541488.4A CN202010541488A CN111807765A CN 111807765 A CN111807765 A CN 111807765A CN 202010541488 A CN202010541488 A CN 202010541488A CN 111807765 A CN111807765 A CN 111807765A
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- CN
- China
- Prior art keywords
- molding material
- brick
- preparation
- mine tailing
- vacuum mechanism
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/006—Pressing by atmospheric pressure, as a result of vacuum generation or by gas or liquid pressure acting directly upon the material, e.g. jets of compressed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/003—Pavings made of prefabricated single units characterised by material or composition used for beds or joints; characterised by the way of laying
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
A mine tailing brick for roads and a preparation method thereof comprise tailing slag, medium sand, cement, water and an additive, and S1 is dry-mixed: s2, wet mixing: s3, casting and forming: according to the invention, the molding material is processed twice by a dry method and a wet method, so that the strength and the humidity of the molding material are easy to control; the molding material is pressed and molded in the cavity, so that the brick is simpler and more convenient to prepare, does not need to be burnt or steamed, saves energy and has no pollution; when the suppression, vacuum mechanism bleeds, can make the holding down force of clamp plate bigger on the one hand, eliminates the reverse interference power of air to the clamp plate, and on the other hand can eliminate to have the gas pocket in the fragment of brick for the intensity of fragment of brick is higher.
Description
Technical Field
The invention belongs to the technical field of comprehensive utilization of mine tailings, and particularly relates to a mine tailing brick for roads and a preparation method thereof.
Background
During the process of mining and sand making of the stone material of the mine, a large amount of tailings can be generated; the tailings are the wastes after mineral separation and are the main components of industrial solid wastes, and the tailings are discarded, so that not only is a large amount of land occupied and great damage to the surrounding ecological environment caused, but also the respective treatment and maintenance costs are invested;
mine tailings can be processed into bricks for being used for building and road paving, however, the existing preparation method is complex in process, in order to guarantee the strength of the bricks, the working procedures of burning, steam curing and the like are needed, the energy consumption is large, and the cost is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a mine tailing brick for a road and a preparation method thereof, and the specific technical scheme is as follows:
the utility model provides a mine tailing fragment of brick for road, the fragment of brick includes tailings, middlings, cement, water and admixture, the mass percent of tailings, middlings, cement, water and admixture is: (57-67): (19-22): 3: (8-10): (2-3).
A preparation method of a mine tailing brick for a road comprises the following steps:
s1, dry mixing:
adding solid raw materials into a first blanking hopper, wherein the solid raw materials comprise tailing slag, medium sand and cement;
a driving motor at the bottom inside the first blanking hopper drives a grinding wheel to rotate, so that the solid raw materials are ground and mixed into coarse materials with required particle sizes;
s2, wet mixing:
discharging the coarse materials into a second discharging hopper;
filling water and the additive into a second discharging hopper, and driving the coarse material, the water and the additive to be fully mixed by a stirring blade to prepare a viscous molding material;
s3, casting and forming:
opening the second discharging hopper, and discharging the molding material downwards into the molding die;
the first pneumatic rod drives the pressing plate to move downwards, meanwhile, the vacuum mechanism extracts air in the forming die and the molding material from the bottom, and the molding material is pressed into bricks in the forming die.
Further, the tailing slag, the medium sand, the cement, the water and the additive are as follows by mass percent: (57-67): (19-22): 3: (8-10): (2-3).
Further, in S3, the vacuum mechanism draws air in the forming mold and the molding material from the bottom specifically: the vacuum mechanism pumps out air in the cavity and the molding material, and the non-woven fabric embedded at the inlet of the vacuum mechanism can block the molding material to prevent the molding material from being sucked out.
Further, forming die includes mould main part, supporting seat, exhaust tube, the supporting seat is installed on the shaping conveyer belt, and there is the mould main part on the surface of supporting seat through the mounting screw, and the die cavity has been seted up to the inside of mould main part, and the exhaust hole has been seted up to the center department of supporting seat, and the inside embedding in exhaust hole has the non-woven fabrics, and the intercommunication can be dismantled with the exhaust hole to vacuum mechanism.
Further, in S3, the vacuum mechanism is assembled by: the intubation tube is fixed at the top end of the second pneumatic rod, the intubation tube and the exhaust hole of the forming die are arranged oppositely, and the vacuum pump is connected to the bottom end of the intubation tube through a hose.
The invention has the beneficial effects that:
1. the molding material is processed twice by a dry method and a wet method, so that the strength and the humidity of the molding material are easy to control, and the strength and the viscosity of the molding material can meet the requirements;
2. the molding material is pressed and molded in the cavity, so that the brick is simpler and more convenient to prepare, does not need to be burnt or steamed, saves energy and has no pollution;
3. when the pressing, the vacuum mechanism bleeds, eliminates the reverse interference power of air to the clamp plate on the one hand for the holding down force of clamp plate is bigger, and on the other hand can eliminate to have the gas pocket in the fragment of brick, finally improves the intensity of fragment of brick.
Drawings
Fig. 1 shows a schematic structural view of a preparation device of the mine tailing brick for roads of the invention;
figure 2 shows a schematic view of the milling mechanism of the present invention;
FIG. 3 shows a schematic structural view of the aggregate mechanism of the present invention;
FIG. 4 shows a schematic view of the forming die structure of the present invention;
FIG. 5 shows a schematic view of the vacuum mechanism of the present invention;
shown in the figure: 1. a vacuum mechanism; 11. a second pneumatic rod; 12. inserting a tube; 13. a vacuum pump; 2. a milling mechanism; 21. a first discharge hopper; 211. a discharge port; 22. grinding the grinding wheel; 221. a shield; 23. a drive motor; 3. a material collecting mechanism; 31. a second discharge hopper; 32. a stirring blade; 33. a plugging valve; 4. forming a conveying belt; 5. forming a mold; 51. a mold body; 511. a cavity; 52. a supporting seat; 521. an exhaust hole; 53. non-woven fabrics; 54. an air exhaust pipe; 6. a first pneumatic rod; 61. and (7) pressing a plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a mine tailing fragment of brick for road, the fragment of brick includes tailings, middlings, cement, water and admixture, the mass percent of tailings, middlings, cement, water and admixture is: (57-67): (19-22): 3: (8-10): (2-3).
A preparation method of a mine tailing brick for a road comprises the following steps:
s1, dry mixing:
adding solid raw materials into a first blanking hopper, wherein the solid raw materials comprise tailing slag, medium sand and cement;
a driving motor 23 at the bottom inside the first blanking hopper 21 drives the grinding wheel 22 to rotate, so that the solid raw materials are ground and mixed into coarse materials with required particle sizes; the step is used for grinding and mixing the tailing slag, the medium sand and the cement together, so that the mixing effect is improved;
s2, wet mixing:
the coarse material is discharged into a second discharging hopper 31; the mixed coarse materials can be discharged and collected in a second blanking hopper 31;
filling water and the additive into a second discharging hopper 31, and driving the coarse material, the water and the additive to be fully mixed by a stirring blade 32 to prepare a viscous molding material; the stirring blade 32 can drive the water, the additive and the coarse material to be mixed, so that the required molding material is prepared; the additive is exemplified by fly ash and air entraining agent;
s3, casting and forming:
the second discharging hopper 31 is opened, and the molding material is discharged downwards into the molding die 5;
the first pneumatic rod 6 drives the pressing plate 61 to move downwards, and meanwhile, the vacuum mechanism 1 extracts air in the forming die 5 and the molding material from the bottom, and the molding material is pressed into bricks in the forming die 5; the molding material is pressed and molded in the cavity, so that the brick is simpler and more convenient to prepare, does not need to be burnt or steamed, saves energy and has no pollution; when the suppression, vacuum mechanism bleeds, can make the holding down force of clamp plate bigger on the one hand, eliminates the reverse interference power of air to the clamp plate, and on the other hand can eliminate to have the gas pocket in the fragment of brick for the intensity of fragment of brick is higher.
As an improvement of the technical scheme, the tailing slag, the medium sand, the cement, the water and the additive comprise the following components in percentage by mass: (57-67): (19-22): 3: (8-10): (2-3); through the mixing of the proportion, the strength of the brick can be effectively enhanced, and the tailing slag is recycled.
As an improvement of the above technical solution, in S3, the vacuum mechanism 1 extracts air in the forming mold 5 and the molding material from the bottom, specifically: the vacuum mechanism 1 pumps out air in the cavity and the molding material, and the non-woven fabric 53 embedded at the inlet of the vacuum mechanism 1 can block the molding material to prevent the molding material from being sucked out; utilize the non-woven fabrics, but on the one hand shutoff type material avoids the type material to flow out, and on the other hand can normally take out gas.
As shown in fig. 4, the forming mold 5 includes a mold main body 51, a support seat 52 and an air exhaust pipe 54, the support seat 52 is mounted on the forming conveyer belt 4, the mold main body 51 is mounted on the surface of the support seat 52 through screws, a cavity 511 is formed in the mold main body 51, an exhaust hole 521 is formed in the center of the support seat 52, a non-woven fabric 53 is embedded in the exhaust hole 521, and the vacuum mechanism 1 is detachably communicated with the exhaust hole 521; the mould main body 51 is convenient to detach and replace due to screw installation, so that the pouring requirements of bricks in different shapes are met.
As an improvement of the above technical means, in S3, the method for assembling the vacuum mechanism includes: fixing an insertion tube 12 at the top end of the second pneumatic rod 11, wherein the insertion tube 12 is arranged opposite to the exhaust hole 521 of the forming die, and a vacuum pump 13 is connected to the bottom end of the insertion tube 12 through a hose; when the mold to be pressed moves to the top end of the insertion tube 12, the second pneumatic rod 11 drives the insertion tube 12 to be inserted upwards into the exhaust hole 521, so that the exhaust communication is realized.
As shown in fig. 1, fig. 1 shows a schematic structural diagram of a preparation device of a mine tailing brick for roads of the invention;
the bottom of the grinding mechanism 2 is provided with an aggregate mechanism 3, the bottom of the aggregate mechanism 3 is provided with a forming conveyer belt 4 at intervals, the surface of the forming conveyer belt 4 is provided with a forming mold 5 distributed in a linear array, one side of the aggregate mechanism 3 is provided with a first pneumatic rod 6, the bottom end of the first pneumatic rod 6 is a pressing plate 61, the pressing plate 61 is positioned at the top of the forming mold 5, the lower part of the pressing plate 61 is relatively provided with a vacuum mechanism 1, and the vacuum mechanism 1 is positioned at the bottom of the forming conveyer belt 4.
As shown in fig. 2, fig. 2 shows a schematic view of the milling mechanism of the present invention;
the grinding mechanism 2 comprises a first blanking hopper 21, a grinding wheel 22 and a driving motor 23, the first blanking hopper 21 is funnel-shaped, a discharge hole 211 is formed in the bottom surface of the first blanking hopper 21, and the discharge hole 211 is positioned between the grinding wheel 22 and the first blanking hopper 21; a grinding wheel 22 is arranged at the central line of the interior of the first blanking hopper 21, the top surface of the grinding wheel 22 is of an arc surface structure, the grinding wheel 22 is of a conical structure with a wide upper part and a narrow lower part, and a structure with a wide upper part and a narrow lower part is arranged between the grinding wheel 22 and the inner wall of the first blanking hopper 21; the bottom end of the grinding wheel 22 is connected with the driving motor 23, the outer contour of the bottom surface of the grinding wheel 22 is vertically provided with a shield 221, and the shield 221 is used for blocking the solid raw materials.
As shown in fig. 3, fig. 3 shows a schematic structural view of the aggregate mechanism of the present invention;
the aggregate mechanism 3 comprises a second hopper 31, a stirring blade 32 and a blocking valve 33, the second hopper 31 is funnel-shaped, the blocking valve 33 is installed at the outlet of the bottom end of the second hopper 31, and the stirring blade 32 is installed at the central line of the inside of the second hopper 31.
As shown in fig. 5, fig. 5 shows a schematic view of the vacuum mechanism of the present invention;
the top end outer wall of the second pneumatic rod 11 is connected with an insertion tube 12, the insertion tube 12 is vertically arranged, the insertion tube 12 is arranged opposite to the exhaust hole 521, and the bottom end of the insertion tube 12 is communicated with a vacuum pump 13 through a hose.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a mine tailing fragment of brick for road which characterized in that: the brick comprises tailing slag, medium sand, cement, water and an additive, wherein the tailing slag, the medium sand, the cement, the water and the additive are as follows by mass percent: (57-67): (19-22): 3: (8-10): (2-3).
2. A preparation method of mine tailing bricks for roads is characterized by comprising the following steps: the preparation method comprises the following steps:
s1, dry mixing:
adding solid raw materials into a first blanking hopper, wherein the solid raw materials comprise tailing slag, medium sand and cement;
a driving motor at the bottom inside the first blanking hopper drives a grinding wheel to rotate, so that the solid raw materials are ground and mixed into coarse materials with required particle sizes;
s2, wet mixing:
discharging the coarse materials into a second discharging hopper;
filling water and the additive into a second discharging hopper, and driving the coarse material, the water and the additive to be fully mixed by a stirring blade to prepare a viscous molding material;
s3, casting and forming:
opening the second discharging hopper, and discharging the molding material downwards into the molding die;
the first pneumatic rod drives the pressing plate to move downwards, meanwhile, the vacuum mechanism extracts air in the forming die and the molding material from the bottom, and the molding material is pressed into bricks in the forming die.
3. The preparation method of the mine tailing brick for the road according to claim 2, which is characterized by comprising the following steps: the tailing slag, the medium sand, the cement, the water and the additive are as follows by mass percent: (57-67): (19-22): 3: (8-10): (2-3).
4. The preparation method of the mine tailing brick for the road according to claim 2, which is characterized by comprising the following steps: in S3, the vacuum mechanism draws air from the bottom of the forming mold and the molding material specifically includes: the vacuum mechanism pumps out air in the cavity and the molding material, and the non-woven fabric embedded at the inlet of the vacuum mechanism can block the molding material to prevent the molding material from being sucked out.
5. The preparation method of the mine tailing brick for the road according to claim 4, wherein the preparation method comprises the following steps: forming die includes mould main part, supporting seat, exhaust tube, the supporting seat is installed on the shaping conveyer belt, and there is the mould main part on the surface of supporting seat through the mounting screw, and the die cavity has been seted up to the inside of mould main part, and the exhaust hole has been seted up in the center department of supporting seat, and the inside embedding in exhaust hole has the non-woven fabrics, and vacuum mechanism can dismantle the intercommunication with the exhaust hole.
6. The preparation method of the mine tailing brick for the road according to claim 5, wherein the preparation method comprises the following steps: in S3, the method of assembling the vacuum mechanism includes: the intubation tube is fixed at the top end of the second pneumatic rod, the intubation tube and the exhaust hole of the forming die are arranged oppositely, and the vacuum pump is connected to the bottom end of the intubation tube through a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541488.4A CN111807765A (en) | 2020-06-15 | 2020-06-15 | Mine tailing brick for road and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541488.4A CN111807765A (en) | 2020-06-15 | 2020-06-15 | Mine tailing brick for road and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111807765A true CN111807765A (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010541488.4A Pending CN111807765A (en) | 2020-06-15 | 2020-06-15 | Mine tailing brick for road and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN111807765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112430122A (en) * | 2020-10-28 | 2021-03-02 | 福建省南安盈晟新型墙体材料有限公司 | Production method of high-efficiency energy-saving non-clay sintered brick |
| CN112659348A (en) * | 2020-12-18 | 2021-04-16 | 河海大学 | Treatment and forming integrated machine for preparing concrete blocks by taking dredged sand as raw material and using method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092393A (en) * | 1975-02-20 | 1978-05-30 | Soberman Establishment | Method of making blocks and plates from pieces of marble and other natural stones |
| CN2335764Y (en) * | 1998-06-08 | 1999-09-01 | 梁书琴 | Hollow bearing block and bearing brick shaping machine |
| CN104692720A (en) * | 2015-02-02 | 2015-06-10 | 武汉市天沭科技发展有限公司 | Copper tailing baking-free brick and preparation method thereof |
| CN108529958A (en) * | 2018-05-31 | 2018-09-14 | 巩玉兵 | A kind of iron tailings is non-burning brick and preparation method |
-
2020
- 2020-06-15 CN CN202010541488.4A patent/CN111807765A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092393A (en) * | 1975-02-20 | 1978-05-30 | Soberman Establishment | Method of making blocks and plates from pieces of marble and other natural stones |
| CN2335764Y (en) * | 1998-06-08 | 1999-09-01 | 梁书琴 | Hollow bearing block and bearing brick shaping machine |
| CN104692720A (en) * | 2015-02-02 | 2015-06-10 | 武汉市天沭科技发展有限公司 | Copper tailing baking-free brick and preparation method thereof |
| CN108529958A (en) * | 2018-05-31 | 2018-09-14 | 巩玉兵 | A kind of iron tailings is non-burning brick and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 戴少康: "《选煤工艺设计实用技术手册 第2版》", 30 April 2016, 煤炭工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112430122A (en) * | 2020-10-28 | 2021-03-02 | 福建省南安盈晟新型墙体材料有限公司 | Production method of high-efficiency energy-saving non-clay sintered brick |
| CN112430122B (en) * | 2020-10-28 | 2023-06-30 | 福建省南安盈晟新型墙体材料有限公司 | High-efficiency energy-saving production method of non-clay sintered bricks |
| CN112659348A (en) * | 2020-12-18 | 2021-04-16 | 河海大学 | Treatment and forming integrated machine for preparing concrete blocks by taking dredged sand as raw material and using method thereof |
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Application publication date: 20201023 |
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| RJ01 | Rejection of invention patent application after publication |