1415 results about "Cement Material" patented technology

The utility model relates to vertical mill auxiliary technical field, concretely is a cement vertical mill steady flow bin device, the cement vertical mill right side is provided with the steady flow bin for raw material transfer, and steady flow bin support assembly is in the inside support frame, steady flow bin upper portion is provided with the receiving hopper for receiving the conveying device and conveying raw material, and receiving hopper supports in the inside steady flow bin, steady flow bin and cement vertical mill are supported assembly between through support frame and are used for lifting raw material's raw material lifting cylinder and are used for lifting the coarse residue's coarse residue lifting cylinder, raw material lifting cylinder and coarse residue lifting cylinder lower end intercommunication are provided with corresponding raw material inlet hopper and coarse residue inlet hopper, the inside left side of support top bin assembly is equipped with the drive mechanism of drive raw material lifting cylinder and the inside rotation of coarse residue lifting cylinder and promote, the utility model discloses convenient according to the use need to carry out the auxiliary stable feeding raw material to the unqualified coarse residue and carry out the cyclic auxiliary lifting again enter, be favorable to the operation use efficiency of improving.

This utility model relates to the field of cement processing technology, specifically to a cement vertical mill feeding structure, including a conveyor base and a dispersing device. The conveyor base has a feed hopper, and the feed hopper has a guide platform. A rotating plate is rotatably connected to the bottom of the guide platform. The dispersing device includes a first motor mounted on the feed hopper, a drive shaft and a driven shaft rotatably connected to the feed hopper, a first gear and a second gear coaxially mounted on the drive shaft and the driven shaft respectively, and multiple sets of dispersing structures equidistantly distributed along the axial direction. The first motor and the drive shaft are driven together, and the first gear and the second gear are meshed together. Each set of dispersing structures includes six dispersing blades arranged in a ring array. Each set of dispersing structures on the drive shaft and the driven shaft is alternately distributed and interleaved with each other. This utility model can efficiently disperse and pre-treat the fed material, avoiding the problem of material getting stuck at the feed inlet and ensuring the efficiency of cement processing.

The utility model discloses a cement pipeline spraying fixing device belongs to cement pipeline processing field. A cement pipeline spraying fixing device, including at least one frame, still include: bushing, rotation is connected in the frame, one end of bushing is through frame and is fixedly connected with support seat, and the drive portion is equipped in the frame, at least three groups of limit posts of sliding connection in the support seat are equipped with the adjusting spare in the support seat, the utility model discloses through adjusting spare drive six groups of limit post to move simultaneously, can fastly support and fix the inner wall of cement pipeline, and, utilize drive portion to drive bushing and support seat rotation, can to cement pipeline rotation adjustment, thereby improve the spraying quality of cement pipeline outer surface.

1. Name of this design product: Rear control panel of a mixer truck. 2. Intended use of this design: for use on the rear control panel of engineering vehicles, especially cement mixer trucks. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention relates to the field of concrete technology, specifically to a self-healing concrete material, its preparation method, and its application. The self-healing concrete material is a core-shell structured microcapsule, comprising a core material and a wall material. The wall material wraps around the core material. The core material comprises the following raw materials in parts by weight: 4-6 parts β-cyclodextrin, 12-18 parts sepiolite powder, 5-10 parts shellac powder, 25-35 parts sulfoaluminate cement, 10-15 parts magnesium oxide, 12-16 parts sodium silicate aqueous solution, and 14-17 parts calcium carbonate. The wall material comprises the following raw materials in parts by weight: 20-30 parts polyvinyl alcohol, 20-30 parts ethyl cellulose, 15-25 parts bentonite, and 25-35 parts corn starch. The mass ratio of the core material to the wall material is 6-7:3-4. The core material of the self-healing concrete material provided by this invention, comprising β-cyclodextrin, sepiolite powder, and shellac powder, can improve the problems of slow repair speed and poor reinforcement effect of self-healing materials.

This utility model discloses a prefabricated drainage ditch installation device with a guiding and positioning structure, comprising: a base layer, a bottom plate at the bottom of the base layer, and a support plate for supporting the whole; the inner surface of the base layer is filled with a layer of cement mortar, and the inner end of the upper surface of the base layer is provided with a plurality of positioning holes at equal intervals from front to back; the bottom end of the cement mortar layer is provided with a bottom plate, and the upper surface of the bottom plate is provided with adjustment grooves on both the left and right ends; the upper surface of the bottom plate is provided with side plates on both the left and right ends; the bottom outer end of the side plate is fixedly connected with a connecting protrusion, and the bottom upper surface of the side plate is provided with a connecting groove; the inside of the connecting groove is engaged with the bottom end of the support plate. This prefabricated drainage ditch installation device with a guiding and positioning structure can guide and position the drainage ditch before pouring cement into it, avoiding installation failure and material waste.

This utility model relates to the field of cement fiberboard assembly technology, and particularly to a cement fiberboard curtain wall structure, including a receiving and mounting base. The receiving and mounting base has a positioning groove with a through front end on both the left and right sides of its inner lower wall. A bolt is threadedly connected to the lower center of the receiving and mounting base. The inner rear wall of the receiving and mounting base has four T-shaped slots with through upper ends. A positioning rectangular groove with a through upper end is located in the center of the inner rear wall of the receiving and mounting base, between two adjacent T-shaped slots. A curtain wall panel installation structure is provided within the receiving and mounting base. This utility model's cement fiberboard curtain wall structure, by providing positioning grooves and T-shaped slots in the receiving and mounting base, combined with the curtain wall panel installation structure and curtain panel installation reinforcement structure, achieves precise positioning and stable installation of the cement fiberboard, effectively improving the curtain wall's sealing performance and overall stability.

This application relates to an ash collection structure for cement denitrification, belonging to the field of cement denitrification. It includes a denitrification reactor and an ash collection channel fixed to and connected to the lower end of the reactor. A screw conveyor is provided at the lower end of the ash collection channel. The screw conveyor includes a conveying pipe connected to the ash collection channel. An auger is rotatably connected inside the conveying pipe, and a drive motor for driving the auger is connected to the conveying pipe. An inclined conveying chute is fixed to and connected to the lower part of one end of the conveying pipe. A vibrating motor is fixedly connected to the outer wall of the ash collection channel. This application has the effect of thorough ash collection and reduced labor costs and labor intensity.

The present application relates to the technical field of cementing cement slurry, in particular to a low-density cementing cement slurry system and application thereof, the low-density cementing cement slurry system comprises, in terms of weight fraction, in-situ toughness cement 100 parts, fly ash 70-100 parts, quartz sand powder 65-90 parts, glass beads 45-65 parts, microsilica powder 10-20 parts, plaster of paris 3-6 parts, quicklime 3-6 parts, slaked lime 3-6 parts, early strength agent 3-6 parts, fluid loss additive 10-14 parts, retarder 5-10 parts, and water 255-325 parts. The present application uses in-situ toughness cement to replace conventional G-grade cement, can quickly form gel on the surface, and improves the resistance of the system to high temperature in combination with the protection of high-temperature additives. In addition, the present application designs a new temperature variation experiment scheme according to the field construction process, shortens the time for the low-density system to withstand high temperature and high pressure at the bottom of the well, reduces the amount of high-temperature-resistant additives and viscosity-increasing stabilizing materials, and improves the high-temperature heat dilution, delamination instability of the system.

This invention discloses a fissure grouting material, its preparation method, and its application, belonging to the technical field of radiation protection engineering materials. By mass, its raw materials include: 45-60 parts barite sand, 25-35 parts sulfoaluminate cement, 8-20 parts borax, 2-5 parts boron carbide powder, 1-5 parts nano-gadolinium oxide, 5-15 parts lithium slag powder, 3-8 parts barium sulfate whiskers, 3-8 parts polymer emulsion, 0.5-1.5 parts water-reducing agent, 0.1-0.5 parts stabilizer, and 18-25 parts water. This invention provides high-density gamma-ray shielding through barite sand, achieves all-round neutron protection through a quaternary composite neutron absorption system, enhances the material's toughness and shielding effect through barium sulfate whiskers, and ensures high fluidity and interfacial bonding strength of the grout through the polymer emulsion. This material is particularly suitable for sealing and shielding fissures in the surrounding rock of radioactive tunnels, possessing advantages such as excellent shielding effectiveness, good construction performance, high volume stability, and long-term durability.

The invention relates to a method for forming a decorative panel (10) for furniture, comprising the following steps: Providing (100) a base plate (1) defined by a lower wall (11) and an upper wall (12) and having several lateral faces (13); Providing (200) a frame (2), said frame (2) defining a central opening (21) of a shape substantially complementary to that of the base plate (1); Arranging (300) the base plate (1) inside the central opening (21) of the frame (2), so that the frame (2) surrounds the lateral faces (13) of the base plate (1) and defines a filling cavity (22) above the upper wall (12) of the base plate (1); Fixing the frame (2) to the base plate (1); Applying glue or an adhesive to the upper wall (12) of the base plate. base (1), the glue or adhesive being suitable for ensuring the adhesion of a layer of terrazzo (3) to the base plate (1);Deposition (400) of a terrazzo layer (3) formed from a mixture of liquid cement or liquid resin and aggregates of materials inside the filling cavity (22) until the terrazzo layer (3) is flush with an upper edge (23) of the frame (2); Drying (500) of the terrazzo layer (3) so as to solidify the cement or resin; Sanding (600) of the terrazzo layer (3) and the frame (2) until a smooth upper surface and a predetermined thickness are obtained; Polishing and then preferably application of a waterproof protective layer on the upper surface of the terrazzo layer (3). Figure 1;

This utility model relates to the field of cement production technology, and in particular to a cement kiln that uses waste tires as fuel for cement clinker calcination. It includes a base, with the main body of the cement kiln fixedly installed on the top of the base. A burner is fixedly installed on the right side of the base, and a feeding cylinder is fixedly installed on the top of the burner. A drive motor is fixedly connected to the top of the feeding cylinder, and the output end of the drive motor passes through the inner cavity of the feeding cylinder and is fixedly connected to a crushing shaft. This utility model can treat exhaust gas. During use, the exhaust pipe guides the exhaust gas, and during this guidance, the water in the recovery box recovers and treats the exhaust gas. Simultaneously, the exhaust gas is introduced into the treatment box, allowing the filter plate, filling box, and adsorption packing material to treat the exhaust gas. Furthermore, during use, the feeding cylinder, drive motor, crushing shaft, and spiral shaft guide tire material into the burner, enabling the use of waste tires as fuel.

Mobile concrete mixer having a sandwiched material storage and material flow configuration, is characterized by- a mobile concrete Mixer (1) installed on a vehicle (v) having a composite bulk solid material storage compartment (2) wherein the cement or binder compartment (3) is sandwiched longitudinally between the fine and coarse aggregate compartments (4 & 5) having inclined conveyors (6, 7 & 8) respectively wherein the Mixer (9) is divided into two sides (A & B) by the longitudinal axis of the vehicle and the binder or cement is discharged in the mixer at the center with water while the fine and coarse materials on opposite sides of the Mixer (9). The Mixing is achieved by means of plurality of mixing blades (11) which push 'Side A' material to 'Side B' and vice a versa before discharging the fresh mixed concrete through a central discharge gate (14).

This invention discloses a rapid-hardening, high-toughness shotcrete and its spraying construction method, belonging to the field of concrete material technology. It employs a technical route of multi-component synergistic rapid-hardening – modified hybrid fiber toughening – three-stage synergistic expansion – three-phase distribution spraying method. The shotcrete material consists of powder, graded fine aggregate, polymer, high-performance liquid accelerator, and water. The graded fine aggregate forms a riprap skeleton; the high-belite aluminum sulfate cement and silicate cement compound lay the foundation for rapid hardening; the modified hybrid fibers construct a three-dimensional reinforcing network to achieve high toughness and crack resistance; the multi-component composite expansion agent compensates for shrinkage throughout all ages; and the micro-nano active admixtures and polymer optimize interfacial bonding performance. It is complemented by high-pressure airflow cleaning / nano-silicon ion impregnation of the substrate and a three-phase distribution spraying method of rapid-hardening cement paste – graded fine aggregate – liquid accelerator. The concrete of this invention combines rapid hardening, high strength, and high toughness and crack resistance, shortening response time and improving construction efficiency.

The present invention relates to methods of applying cementitious compositions comprising de-lithiated beta-spodumene by injecting, by spraying, or by layer-by- layer deposition, to cementitious compositions comprising de-lithiated beta-spodumene, and to the use of de-lithiated beta-spodumene to increase the shear modulus G of a cementitious composition.

The application discloses a cement-chemicals co-production system and a control method thereof, and belongs to the technical field of carbon emission reduction and resource utilization in the cement industry. The system comprises a water electrolysis hydrogen production unit, a microwave-assisted hydrogen calcination unit, a cement clinker sintering unit, a synthetic gas purification unit, a synthetic gas proportioning unit, a chemical synthesis unit, a waste heat recovery unit and an automatic control and data monitoring unit. The microwave-assisted hydrogen calcination technology is used to decompose calcium carbonate into CO synthesis gas, oxygen by-product of water electrolysis is used for oxygen-enriched combustion, combined with accurate proportioning of synthetic gas and DCS and artificial intelligence collaborative control, the collaborative production of cement clinker and high-value chemicals is realized. The application reduces the carbon emission of the system by more than 70% compared with the traditional process, reduces the comprehensive energy consumption by more than 30%, the thermal efficiency is greater than or equal to 85%, the synthetic gas conversion rate is greater than or equal to 80%, and the carbon resource utilization rate and production stability are significantly improved, and the application has outstanding economic and environmental benefits.

This application provides a structure and installation method for a thermal bridge-free connection node for building exterior walls, belonging to the technical field of thermal bridge connection structures for building exterior walls. It includes a precast wall, with the outer side of the precast wall being the indoor side and the inner side being the outdoor side, and a thermal inertia matching layer disposed on the inner side of the insulation board. This structure and installation method for a thermal bridge-free connection node for building exterior walls solves the defects of traditional exterior wall joints, such as significant thermal bridging effects at the connectors, thermal stress cracking at the interfaces of different materials due to abrupt changes in thermal conductivity, and the difficulty in balancing mechanical connection and thermal performance, by placing the thermal inertia matching layer between the insulation board and the cement backing board. It achieves the goal of completely blocking heat conduction along the axial direction of the connector while meeting structural load-bearing requirements, and ensuring smooth heat flow transition between structural layers, significantly improving the energy-saving performance and long-term stability of the exterior wall insulation system.

The present invention concerns an industrial chemical process (400f) and an apparatus for carrying out that process. The chemical process integrates into a single, combined method: (i) a method (303, 304) of producing iron and / or manganese from their ores, and (ii) a method (205a, 205b, 207, 208, 209) of producing an oxide or hydroxide of at least one of calcium, magnesium and iron from another ore respectively comprising a carbonate mineral of at least one of calcium, magnesium and iron. This combined method has the iron and / or manganese ore and the other ore comprising the carbonate mineral as its only essential ingredients, with common salt and / or water as optional extra ingredients. The combined method produces iron and / or manganese in elemental form, an oxide or hydroxide derived from the carbonate mineral, and oxygen as its corresponding products. If the iron and / or manganese ore also comprises a siliceous mineral, the method may also produce an alkaline mixture comprising sodium silicate as a co-product. Salt and water act as intermediaries to produce these end-products, but are only consumed if supplied in excess. An amount of sodium oxide, hydroxide and / or carbonate determined by the amount of salt consumed may be produced as a co-product, along with a corresponding amount of at least one of chlorine and hydrochloric acid. An amount of hydrogen determined by the amount of water consumed may also be produced as a co-product, along with an increased amount of oxygen. The iron, manganese and oxygen produced may all be used in steelmaking. Any excess oxygen may be safely vented to atmosphere. The oxide or hydroxide derived from the carbonate mineral may be used in cement manufacture, as a flux in steelmaking and / or as an ingredient in the manufacture of soda-lime glass. The alkaline mixture comprising sodium silicate may be used as an alkaline activator for an alkaline activated or geopolymer cement. The sodium carbonate may be used in the manufacture of soda-lime and / or borosilicate glass, for example. The chlorine and / or hydrochloric acid may be used in the manufacture of chlorinated organic compounds, for example. The hydrogen may be used as a fuel in a hydrogen economy. The method of the invention requires no nett input of heat because the chemical reactions it involves are exothermic overall. It also consumes no fossil fuels and has electricity as its only energy requirement. Thus if the electricity is produced from a source of renewable energy, this method produces no greenhouse gas emissions. In some embodiments, the method can even have a negative carbon footprint overall. The invention is intended to replace existing techniques for producing iron and / or manganese from their ores, including hydrogen-DRI, the calcination of limestone and other carbonate minerals, both in cement manufacture and in the production of lime for other purposes, and the ammonia-soda, or Solvay, process for the production of sodium carbonate. The invention therefore has the potential to eliminate up to about 20% of anthropogenic carbon dioxide emissions. [Fig. 9B]

This invention discloses a concrete mix design and manufacturing method for underground engineering concrete in a coupled environment of underground environment and load, relating to the field of underground engineering concrete technology. It aims to address the problem that traditional concrete mix design does not fully consider the coupling effect of underground environment and load. The underground environment includes groundwater erosion, wet-dry cycle, and temperature fluctuation; the load includes stress ratio. α s Dynamic load frequency and dynamic load amplitude α d This leads to technical problems such as insufficient erosion resistance, crack resistance, and mechanical stability of concrete, resulting in a short service life. This mix design is based on quantitative analysis of coupled environmental parameters. With cement, composite admixtures, recycled aggregates, modifiers, water, and additives as core components, the basic mix proportion is determined through a mapping model between "environment-load" coupled parameters and component content. The target mix proportion is then obtained through orthogonal experimental optimization. The manufacturing method includes four core steps: raw material pretreatment, graded mixing, gradient curing, and coupled environmental simulation curing.

The application discloses a multistage preheating system for a cement predecomposition kiln, which comprises a base and a storage cylinder, the storage cylinder is fixedly arranged on the top of the base through a support, and relates to the technical field of preheating of decomposition kilns. The multistage preheating system for the cement predecomposition kiln is provided with a multistage heat exchange mechanism and a self-filtering and cleaning mechanism, so that the device can be preheated in multiple stages through the cooperation of the multistage heat exchange mechanism and the self-filtering and cleaning mechanism, the high-temperature flue gas heat of the decomposition kiln can be fully utilized, the heat loss is reduced, the waste heat recovery efficiency is improved, the high-temperature flue gas of the decomposition kiln can be filtered through the self-filtering and cleaning mechanism, the high-temperature flue gas is ensured to be clean, the filtering surface of the conical filter screen frame can be cleaned in real time at the same time, the high-temperature flue gas is ensured to be filtered smoothly, and the system operation is prevented from being affected by the blockage of the filtering structure.

Pumpable slurry compositions comprising at least one aluminosilicate additive and optional pozzolanic cement additives and methods for improving development of compressive strengths in the pumpable cement slurry compositions are disclosed herein. The methods utilize one or more pumpable cement slurry compositions comprising at least one cement component, water, at least one first aluminosilicate additive, at least one optional second aluminosilicate additive, and one or more optional pozzolanic additives, wherein the at least one first aluminosilicate additive has an amorphous phase of greater than about 50% and a weight ratio of silica oxide to aluminum oxide of about 1.0 to about 2.5, and the at least one optional second aluminosilicate additive has a weight ratio of silica oxide to aluminum oxide of about 1.7 to about 3.3.

The application provides an anti-blocking grate for a cement mill, and relates to the technical field of cement production. The surface of the intermediate ring is fixedly connected with a frame, a plurality of grates arranged at equal intervals in a circle are arranged between the frame and the intermediate ring, a through groove penetrating through the surface of the grate is formed in the surface of the grate, a connecting mechanism is arranged between the grate, the frame and the intermediate ring, an installation groove is formed in the interior of the grate, an anti-blocking mechanism is arranged in the interior of the installation groove, the anti-blocking mechanism comprises rotating rods, the surface of each rotating rod is rotationally connected with the inner wall of the through groove, and two rotating rods are arranged in each through groove. The anti-blocking mechanism is arranged to process the blocked material in the through groove, solves the problem that the material is easily blocked in the through groove in the prior art and affects the filtration of the material, automatically processes the material by using the power generated when the grate rotates, and reduces the processing cost of the material.

The application discloses an ultra-early-strength high-anti-cracking cement-based composite material and a preparation method thereof, and belongs to the technical field of building materials. The cement-based composite material comprises cement, aggregate, fiber, water reducing agent, early-strength agent, composite expansion agent, admixture and retarder. The composite expansion agent comprises expansion agent A and coated expansion agent B. The tensile strength of the coating layer of the coated expansion agent B is 1.5-2.0 MPa, and the elongation at break is 5-10%. The cement-based composite material effectively solves the problem of early cracking of ultra-early-strength cement and has high anti-cracking performance.

A locking system for large photovoltaic modules which overcomes the limits linked to the manufacturing methods by means of constraints on their longer side; the system comprising blocks in cement conglomerate, to guarantee greater stability to the module itself and to allow the distance between the locking points to be varied both for horizontal panel installations and for vertical panel installations.