31results about How to "Structural diversification" patented technology

The invention discloses a foldable storage device for refrigeration equipment and the refrigeration equipment, wherein the foldable storage device comprises: at least two storage casings, and the storage casings are configured to be stackable with each other set; support frame, the two adjacent storage casings are connected to each other through the support frame, and among the two adjacent storage casings, the storage casing at the upper part is opposite to the storage casing at the lower part The storage case is pivotable around one end of the support frame. The foldable storage device according to the embodiment of the present invention saves space, and at the same time, the structure of the foldable storage device is diversified to meet the rich living needs of users.

The invention discloses a coproduction method of methylbenzoic acid, methyl benzoate and benzenedicarboxylic acid diester. The method comprises the following steps: (1) continuously introducing xylene, a catalyst and oxygen-containing gas into an oxidation reactor for a reaction, and controlling oxygenic concentration in the tail gas to not exceed 5% by controlling introduction amount of the oxygen-containing gas to obtain an oxidation reaction liquid; (2) feeding the obtained oxidation reaction liquid into a predistillation tower for distillation separation to obtain a low-boiling-point component and a predistillation tower bottom liquid; (3) feeding the predistillation tower bottom liquid into a distillation tower for distillation to obtain a methylbenzoic acid product and a distillationtower bottom liquid; (4) mixing the distillation tower bottom liquid and alcohol for an esterification reaction, and controlling the reaction endpoint to be lower than 0.5wt% of the content of methylbenzoic acid to obtain an esterification reaction liquid; (5) performing distillation separation on the obtained esterification reaction liquid to obtain methyl benzoate and benzenedicarboxylic acid diester products. The method has the advantages that the process is simple, equipment investment is low, and the method is environmentally friendly and has good comprehensive economic benefits.

The invention discloses a method for co-producing benzoic acid, p-toluylic acid and m-methylbenzoate. The method comprises the following steps of (1) oxidizing: adding a xylene mixture, a catalyst and an oxygen-containing gas into an oxidation reactor to react, wherein the content of oxygen in the oxygen-containing gas in percentage by mass is no less than 15%; (2) gas and liquid separating and purifying: sending an oxidation reaction liquid into a gas and liquid separator, condensing and separating a gas phase part, circulating the condensate into the oxidation reaction liquid to continue to oxide, treating and exhausting the non-condensing gas, and performing conventional rectification on a liquid phase part, so as to obtain a low-boiling point component of which the boiling point is lower than the boiling point of benzoic acid; circulating into the oxidation reactor to continue to oxide, and performing further conventional rectification on the tower bottom component, so as to sequentially obtain the benzoic acid, m-methylbenzoate and p-toluylic acid products. The method has the advantages that the technology is simple, the cost of raw material is low, the equipment investment is little, the yield rate is high, the selectivity is good, and the economic benefit is good.

The invention relates to a frustule asphalt modifier, a frustules asphalt modifier modified composite asphalt, and a preparation method of the frustules asphalt modifier. The frustules asphalt modifier is prepared from, by weight, 5 to 20 parts of frustule, 10 to 25 parts of waste rubber powder, 0 to 5 parts of petroleum resin or low grade asphalt, and 0 to 3 parts of a stabilizing agent. The invention also discloses a frustules composite modified asphalt, and a preparation method thereof. The frustule asphalt modifier is capable of improving the high temperature performance, the low temperature performance, the fatigue resistance, and the water stability of asphalt mixtures; the obtained frustules composite modified asphalt possesses excellent heat storage stability, and low temperature crack resistance, and is capable of prolonging the service life of road. A part of expensive SBS is replaced by cheap frustule, compared with the pavement performance of modified asphalt prepared via using of only SBS, the pavement performance is improved, and modified asphalt cost is reduced.

The invention relates to a truss type steel structure stair which structurally comprises I-shaped steel main beams and is characterized in that the I-shaped steel main beams are sequentially and vertically fixed on a floor; the number of the I-shaped steel main beams is four; i-shaped steel cross beams are welded to the front end and the rear end of the top face of the I-shaped steel main beam in a horizontal alignment mode, I-shaped steel longitudinal beams are welded to the left end and the right end of the top face of the I-shaped steel main beam in a horizontal alignment mode, and the I-shaped steel cross beams and the I-shaped steel longitudinal beams form a rectangular structure. A platform is installed on the rectangular top face, cross rods are welded to the I-shaped steel main beams at equal intervals of the height, inclined rods are welded to the cross rods in a diagonal mode, and first connecting plates are welded to the tail portions of the right sides of the I-shaped steel cross beams in a horizontally-aligned mode, and the truss type steel structure stair is convenient to install, high in construction efficiency and diversified in structure.

The invention discloses a method for co-producing methyl benzoic acid, methyl benzoate and phthalic acid diester, comprising: (1) continuously feeding xylene, a catalyst and an oxygen-containing gas into an oxidation reactor to carry out reaction, by controlling the amount of oxygen-containing gas to control the tail oxygen concentration to be no more than 5%, to obtain an oxidation reaction liquid; (2) enter the obtained oxidation reaction liquid into an initial distillation tower for rectification separation, to obtain low boiling point components and initial (3) enter the rectifying tower still liquid into the rectifying tower for rectification to obtain toluic acid product and rectifying tower still liquid; (4) mix the rectifying tower tower liquid with alcohol , carry out the esterification reaction, control the reaction end point to be that the content of toluic acid<0.5wt%, obtain the esterification reaction solution; (5) carry out rectification separation with the esterification reaction solution obtained, obtain methyl benzoic acid ester respectively and diester phthalate products. The invention has the advantages of simple process, less equipment investment, environmental protection and good comprehensive economic benefits.

The invention discloses a method for co-producing methylbenzoic acid, methylbenzonitrile and phthalonitrile, comprising: (1) continuously feeding xylene, a catalyst and an oxygen-containing gas into an oxidation reactor for reaction, Obtain the oxidation reaction liquid; (2) enter the oxidation reaction liquid into the initial distillation tower and carry out rectification separation, stop the rectification when the methyl benzyl alcohol content reaches 0.01~0.15wt% in the initial distillation tower bottom liquid, obtain low boiling point component and (3) enter the rectification tower with the initial distillation tower still liquid; (3) stop rectification when toluic acid content reaches 30~90wt% in the rectifying tower tower still liquid, obtain formosan (4) mixing the rectifying tower and tower liquid with ammonia to obtain a nitrile-containing reaction liquid; (5) carrying out rectification and separation of a nitrile-containing reaction liquid to obtain methylbenzene respectively Carbonitrile and phthalonitrile products. The invention has the advantages of simple process, less equipment investment, environmental protection and good comprehensive economic benefits.

The invention provides an artificial synthetic material with biological activity and is applied to agriculture. The artificial synthetic material contains artificial hydrophilic protein, artificial hemoglobin and polyhydroxyalkanoate (PHA) which are designed and synthesized in the invention. The material can be used for preparing micron-sized active artificial micro-capsules, wrapping agricultural microbial excellent strains with the characteristics of nitrogen fixation, phosphorus and potassium solubilization, disease and pest resistance, growth promotion and the like to form a novel bacterial fertilizer, and can also be used in the agricultural fields of preparation of novel crop seed active coating agents and the like. The material has the unique properties of keeping thallus activity, directionally combining with root surface, accurately and efficiently fertilizing and the like, and is suitable for modern agricultural production modes such as mechanical seeding, water and fertilizer integrated drip irrigation, soilless culture and the like.

The invention provides a non-oriented spunlace knitted fabric. The non-oriented spunlace knitted fabric is characterized in that a woven knitted fabric is subjected to after-treatment by using a spunlace machining method. The spunlace method is combined; aiming at a diversified structure property of the knitted fabric and being different from a warp and weft structure of the woven fabric, the spunlace method is researched and a non-oriented spunlace machining process is carried out on the knitted fabric, so that the physical performances of the knitted fabric are improved; and the yarn strength, the moisture absorption property, the hand feeling and the appearance of the knitted fabric are greatly improved. Meanwhile, the cost is lowered and the pollution to the environment is alleviated.

The invention belongs to the technical field of coal chemical industry, and in particular relates to a system and method for coal-to-natural gas co-production of methanol. The system includes air separation unit, coal gasification unit, acid gas removal unit, cryogenic separation unit, methanation unit, methanol synthesis unit and methanol rectification unit. This method uses the carbon dioxide discharged from the acid gas removal unit as the raw material gas for methanol synthesis, which can not only ensure the optimal hydrogen-carbon ratio of the methanol synthesis unit, increase the output of methanol, but also reduce CO 2 emissions; supplementing the hydrogen-rich purge gas from the methanol synthesis unit to the methanation unit can not only ensure the optimal hydrogen-carbon ratio of the methanation unit, increase the production of SNG, but also reduce the purge gas emissions. The method improves the utilization rate of carbon element and hydrogen element by coproducing natural gas and methanol, wherein the utilization rate of carbon element can reach more than 50%, and the utilization rate of hydrogen element can reach more than 65%. The amount of natural gas and methanol output can be adjusted according to changes in market prices.

The invention provides a non-oriented spunlace knitted fabric. The non-oriented spunlace knitted fabric is characterized in that a woven knitted fabric is subjected to after-treatment by using a spunlace machining method. The spunlace method is combined; aiming at a diversified structure property of the knitted fabric and being different from a warp and weft structure of the woven fabric, the spunlace method is researched and a non-oriented spunlace machining process is carried out on the knitted fabric, so that the physical performances of the knitted fabric are improved; and the yarn strength, the moisture absorption property, the hand feeling and the appearance of the knitted fabric are greatly improved. Meanwhile, the cost is lowered and the pollution to the environment is alleviated.

The invention discloses a method of co-producing methyl benzoic acid, methylbenzoyl chloride and phthaloyl dichloride. The method comprises the following steps: (1) continuously introducing xylene, acatalyst and oxygen-containing gas into an oxidizing reactor to react to obtain an oxidized reaction solution; (2) rectifying and separating the oxidized reaction solution to obtain a low-boiling-point component and an initial evaporative tower bottom; (3) rectifying the initial evaporative tower bottom to obtain a methyl benzoic acid product and a tower bottom; (4) carrying out an acylating chlorination reaction on the tower bottom and an acylating chlorination reagent to obtain an acyl chloride reaction solution; and (5) rectifying and separating the acyl chloride reaction solution to separately obtain methylbenzoyl chloride and phthaloyl dichloride products. The method provided by the invention has the advantages of being simple in process, small in equipment investment, green and environment-friendly and good in comprehensive economical benefit.

The invention discloses a method for co-producing benzoic acid, p-toluylic acid and m-methylbenzoate. The method comprises the following steps of (1) oxidizing: adding a xylene mixture, a catalyst and an oxygen-containing gas into an oxidation reactor to react, wherein the content of oxygen in the oxygen-containing gas in percentage by mass is no less than 15%; (2) gas and liquid separating and purifying: sending an oxidation reaction liquid into a gas and liquid separator, condensing and separating a gas phase part, circulating the condensate into the oxidation reaction liquid to continue to oxide, treating and exhausting the non-condensing gas, and performing conventional rectification on a liquid phase part, so as to obtain a low-boiling point component of which the boiling point is lower than the boiling point of benzoic acid; circulating into the oxidation reactor to continue to oxide, and performing further conventional rectification on the tower bottom component, so as to sequentially obtain the benzoic acid, m-methylbenzoate and p-toluylic acid products. The method has the advantages that the technology is simple, the cost of raw material is low, the equipment investment is little, the yield rate is high, the selectivity is good, and the economic benefit is good.

The invention discloses a vehicle external contour dimension measurement device. The vehicle external contour dimension measurement device includes a crossing board, wherein two fixed pillars are welded to the bottom of the crossing board; expansion grooves are formed in the bottom of the two fixed pillars; expansion rods are slidably installed in the two expansion grooves; supporting boards are welded to the bottom of the two expansion rods; sliding holes are formed in the top of the crossing board; two sliding pillars are slidably installed in the sliding holes; a fixed seat is welded to thetop of one of the two sliding pillars; a threaded hole is formed in the one side of the fixed seat; a screw rod is installed in the threaded hole in a threaded mode; and a first forward and reversingmotor is welded to the top of the crossing board. The vehicle external contour dimension measurement device is economical and practical; the measurement device is multivariant in structure and complete in functions; original manual detection is replaced; error detection is small, using is convenient, the measuring efficiency is improved at the same time; the vehicle external contour dimension measurement device is not only convenient to carry and use, but also can automatically detect vehicle body spaces and various parts; and a great deal of time is saved.

The invention discloses a self-lubricating composite coating, a coating preparation method and products with the coating. The self-lubricating composite coating of the present invention comprises several AlSn20Cu layers and several MoS 2 layer, AlSn20Cu layer with MoS 2 Layers are set alternately. The self-lubricating composite coating provided by the present invention introduces MoS into the original AlSn20Cu coating 2 The lubricating layer makes the coating composition and structure diversified, which can effectively reduce the stress of the coating and improve the bonding force of the film base. In addition, MoS 2 The introduction of phases can greatly improve the tribological properties of AlSn20Cu coatings in oil-poor and dry friction environments without changing the original lubricating properties of AlSn20Cu coatings.

The invention discloses a four-side display combined frame. The four-side display combined frame is characterized by comprising a first frame body and a second frame body; the first frame body and thesecond frame body are connected through a hinge; the first frame body comprises a first sub-frame and a second sub-frame; the second frame body comprises a third sub-frame and a fourth sub-frame; andthe first sub-frame, the second sub-frame, the third sub-frame and the fourth sub-frame comprise but are not limited to at least two combinations of a photo frame, a picture frame, a mirror frame, aspecimen frame, a blackboard frame and an embroidery frame. According to the four-side display combined frame, four-side content can be displayed through one frame structure, different content can bedisplayed conveniently according to different scene requirements, space is saved, and switching is flexible.

The invention discloses an integrated decorative suspended ceiling, which comprises a suspended ceiling module, a decorative plate staggered overlapping module and a decorative plate flat connecting module, wherein the suspended ceiling module comprises a suspended ceiling plate parallel to a horizontal plane and a suspended ceiling fastener for fixing the suspended ceiling plate below the ceiling, two sides of the suspended ceiling plate are respectively connected with the decorative plate flat connecting module and the decorative plate staggered overlapping module, and the lower surface of the suspended ceiling plate is a decorative surface. The ceiling module, the decorative plate staggered overlapping module and the decorative plate flat connecting module are combined to form the novelintegrated decorative ceiling, so that the ceiling structure is diversified and more three-dimensional, and the aesthetic feeling of the ceiling is improved.

The present invention proposes a method for preparing ceramic raw materials from granite stone waste rock, which includes multi-stage crushing, laminated crushing, coarse grain pre-selection, pre-grading, partial grinding, multi-stage magnetic separation, classification and separation, and superconducting strong magnetic separation And graded dehydration and other processes. The present invention is a pollution-free and environmentally friendly physical technology for the whole process; the comprehensive technical and economic indicators are significantly improved compared with the traditional technology, and K 2 O: 6‑10wt%, Na 2 O:0.5‑3.5wt%, SiO 2 :65‑74wt%, Fe 2 o 3 <0.15wt%, high-quality glass and ceramic raw materials with a whiteness of 60-68, the whiteness of the product is increased from 50-53 to 60-68 degrees, the yield is increased from 51-55% to 65-72%, and the processing capacity can be increased by 13% ‑18%; the product structure is refined and diversified, and suitable products are provided for material homogenization and energy saving and consumption reduction in the downstream glass and ceramic industries.

The invention relates to a multifunctional hydraulic packaging machine and a packaging method thereof. The packaging machine comprises a machine body frame, a safety protection door, a compression bin, a compression bin door, a door clamping device, a hinge, a water receiving groove, a package turning check block, a protection cover, a hydraulic system, an electric control system, a guide rod, an extrusion plate, a package turning system, a dustbin and a compression platform; the water receiving groove and the compression bin are arranged on the lower portion of the machine body frame, the package turning system is arranged at the bottom of the compression bin, the compression bin door and the safety protection door are hinged to the machine body frame through the hinge, an inclined panel is hinged to the opening position of the lower portion of the compression bin through the hinge, the compression bin door and the machine body frame are locked through the door clamping device, and the safety protection door and the machine body frame are locked through the door clamping device; and the multifunctional hydraulic packaging machine and the packaging method have the beneficial effects that design is simple and ingenious, the structure is reasonable and compact, use is convenient, the structure is diversified, one machine has multiple purposes, and the compression problem of different types of materials in the actual production life is solved.