7results about How to "Solving Segregation Problems" patented technology

The invention belongs to the technical field of concrete construction, and provides an efficient high belite cement concrete construction process which comprises the following steps: pre-stirring aggregate and water; after the pre-stirring is finished, adding the high belite cement, the residual water and the polycarboxylate superplasticizer into a mixture obtained by pre-stirring, and carrying out main stirring to obtain concrete; concrete is poured into the formwork in a layered mode, the thickness of each layer is controlled to be 30-40 cm, vibration compaction is conducted immediately after each layer of concrete is poured, the vibration time is controlled to be 30-60 s, and the vibration frequency is 4000-6000 times / min; d, the surface of the poured concrete is immediately covered with a wet straw mat or a plastic film, and initial maintenance is conducted for 12-24 h; and then the environment temperature is kept at 15-35 DEG C, the humidity is 80% or above, and maintenance is conducted for 7-14 days. According to the scheme, the problems that in the prior art, stirring is uneven, pouring is not compact, and early maintenance is not in place are solved.

The utility model discloses a uniform mixing and conveying device for fluorine-loaded alumina powder. The uniform mixing and conveying device comprises a mixing box, the two feeding pipes are arranged on the two sides of the upper portion of the mixing box respectively, and the feeding ends of the two feeding pipes are correspondingly connected with the discharging openings in the bottoms of the fluorine carrying bins respectively; the two flow guide and material distribution plates are arranged in the material mixing box in an inverted splayed shape, and the feeding ends of the two flow guide and material distribution plates correspond to the discharging ends of the two feeding pipes respectively; the two discharging pipes are arranged on the two sides of the lower portion of the mixing box respectively, and the discharging ends of the discharging pipes are correspondingly connected with the ultra-dense phase conveying chute lines respectively.

The invention relates to asphalt stirring equipment, and relates to the field of asphalt stirring processing devices. The device comprises a supporting piece, a stirring piece, a preheating piece and a mixing piece, the supporting piece comprises a supporting frame, a first rotating frame and a second rotating frame, the first rotating frame and the second rotating frame are symmetrically arranged above the supporting frame, the stirring piece comprises a stirring barrel, and the stirring barrel is horizontally arranged above the supporting frame; and the stirring barrel is horizontally and rotatably connected into the first rotating frame and the second rotating frame, the feeding end of the stirring barrel communicates with and is fixedly provided with a preheating part, and the preheating part is used for preheating the asphalt material. Through the distributed arrangement and reverse rotation design of the stirring ring pieces, the stirring strength is uniformly distributed in the radial direction, the linear speed of the stirring ring pieces and the linear speed of the annular stirring racks form difference value complementation, the shearing force deviation of materials at any radial position is achieved, the asphalt emulsification phenomenon is effectively avoided, and the pavement problem caused by uneven mixing is solved.

The utility model relates to an anti-segregation device for super high-rise steel pipe column concrete pouring, which comprises a funnel-shaped pouring hopper and a pouring straight pipe, the bottom end of the pouring hopper is fixedly connected with a discharging pipe, the middle part of the discharging pipe is provided with a flashboard for controlling the opening and closing of the discharging pipe, N wave-shaped buffer bent pipes are arranged between the discharging pipe and the pouring straight pipe, n is a positive integer, and the buffer bent pipe is fixedly connected with the adjacent discharging pipe, the pouring straight pipe or the buffer bent pipe through a quick connection hoop. The concrete pouring device has the beneficial effects that the buffering bent pipe is installed between the discharging pipe and the pouring straight pipe through the quick-connection clamping hoop, the buffering bent pipe is used for conducting deceleration buffering on concrete discharged out of the discharging pipe, the flowing direction of the concrete is changed at the turning position of the buffering bent pipe, the concrete is promoted to be overturned and stirred in the buffering bent pipe, and the concrete pouring effect is improved. The problem of segregation caused by too high free falling height of the concrete is avoided; and the number of the buffer bent pipes is increased or decreased according to the height of the steel column, so that the anti-segregation device can adapt to the steel columns with different heights.

This invention discloses a stepped mixing device and process for highly homogenized and anti-segregation dry mortar, belonging to the field of dry mortar production technology. The device includes a shell with feet at the bottom. Inside the shell, from top to bottom, a primary mixing component, a suction component, and a secondary mixing component are sequentially connected, forming a three-stage stepped mixing structure. A rotating component driving the secondary mixing component is located on the outside of the shell. This invention effectively solves the segregation problem caused by density and particle size differences in multi-component materials in dry mortar through three-stage stepped mixing of "pre-dispersion, pneumatic homogenization, and deep shearing," significantly improving mortar homogeneity and batch stability, shortening mixing time, and increasing production efficiency. It is suitable for the large-scale production of various types of dry mortar.

The application discloses a synergistically enhanced potassium-magnesium sulfate type compound fertilizer and a preparation method thereof, and belongs to the technical field of potassium-magnesium sulfate type compound fertilizers. The synergistically enhanced potassium-magnesium sulfate type compound fertilizer is composed of the following components in parts by weight: 200-250 parts of potassium-magnesium sulfate, 600-700 parts of powdered potassium sulfate, 40-60 parts of ammonium polyphosphate modified magnesium oxide, 10-20 parts of potassium fulvate, and 80-120 parts of a magnesium chloride-citric acid compound solution. The ammonium polyphosphate modified magnesium oxide is introduced, the unique polyphosphate long-chain structure of the ammonium polyphosphate is used as an ion lock, magnesium ions are captured and chelated in situ at a fertilizer dissolving micro-interface, and a complex with strong anti-interference capability is formed; the magnesium in this form can effectively avoid the competitive inhibition of high-concentration potassium ions on root absorption channels.