New-type inflaming retarding material and preparation method thereof

The invention relates to a new-type inflaming retarding material and a preparation method thereof. The inflaming retarding material comprises the following raw materials in parts by weight: 100 parts of polypropylene, 5-16 parts of modifier, 5-10 parts of compound flame retardant. The new-type inflaming retarding material has better fire resistance, can effectively lower the probability of occurrence of fire disasters, reduce the damages caused by fire disaster compared with other polypropylene plastic foam materials, and can prepare the inflaming retarding materials with different inflaming retarding performances through controlling the content of the compound flame retardant at the same foaming multiplying power.

Cottonseed protein modified urea-formaldehyde resin adhesive powder

The invention discloses cottonseed protein modified urea-formaldehyde resin adhesive powder, belonging to the field of urea-formaldehyde resin adhesives and aiming to solve the technical problems that existing urea-formaldehyde resin adhesives release formaldehyde for a long term in the using process, thus causing great impact on the living environments and affecting body health. The cottonseed protein modified urea-formaldehyde resin adhesive powder comprises powdery urea-formaldehyde resin adhesives, refined cottonseed proteins and a curing agent, wherein the curing agent is ammonium chloride or ammonium sulfate. The cottonseed protein modified urea-formaldehyde resin adhesive powder is prepared by adopting a method of mixing. Urea-formaldehyde resin adhesives can be prepared by stirring the materials at high speed after adding water to the cottonseed protein modified urea-formaldehyde resin adhesive powder. The cottonseed protein modified urea-formaldehyde resin adhesive powder is applied ...

Compound modifier for urea-formaldehyde resin adhesives and urea-formaldehyde resin adhesive powder modified by same

The invention provides a compound modifier for urea-formaldehyde resin adhesives and urea-formaldehyde resin adhesive powder modified by the same, belonging to the field of urea-formaldehyde resin adhesives and aiming to solve the technical problems that existing urea-formaldehyde resin adhesives release formaldehyde for a long term in the using process, thus causing great impact on the living environments and affecting body health. The compound modifier is formed by melamine, urea and cassava starch; the modified urea-formaldehyde resin adhesive powder is formed by powdery urea-formaldehyde resin adhesives, the compound modifier for urea-formaldehyde resin adhesives and a curing agent. The content of free formaldehyde in the adhesives prepared by using the urea-formaldehyde resin adhesive powder is 0.5-0.75%, and the viscosity of a glue solution is about 248mPa.s. The three-ply poplar plywood with thickness of 3.0mm is bonded by adopting the urea-formaldehyde resin adhesives, and the plywood ...

Method and device for constructing local model based on federated learning and related equipment

The invention provides a method and device for constructing a local model based on federal learning and related equipment, and the method comprises the steps: carrying out the iterative training of a teacher model through each client till the teacher model converges; training the second student model by using each client to obtain a convergent second student model, and sending parameters of the convergent second student model to the server; carrying out parameter replacement on the aggregation model by utilizing the server side, and carrying out iterative training on the aggregation model after parameter replacement until the aggregation model after parameter replacement converges; training the first student model by using the server side to obtain a convergent first student model, and sending the convergent first student model to each client side; according to the invention, parameter adjustment is carried out on the converged first student model by using each client, and the adjusted ...

Combined heat and power generation energy-saving device and method for supplying heat by waste heat

The invention relates to a combined heat and power generation energy-saving device and a method for supplying heat by waste heat, which belong to the technical field of energy sources. The device comprises a steam boiler, a steam turbine, an electricity generator, a steam condenser, a deaerator and a cooling tower, wherein the steam turbine is connected with the steam condenser through a steam exhaust cylinder, and the steam condenser is connected with the cooling tower through a pipeline for forming a large water path circulation. The invention is characterized in that the device also comprises a heat pump type heat network heater which is respectively connected with a heat supply pipe network, the steam turbine and the deaerator through pipelines, and the steam condenser, the heat pump type heat network heater and the cooling tower are connected through pipelines for forming a small water patch circulation. The device further comprises an automatic controller. The invention can reduce ...

New-type inflaming retarding material and preparation method thereof

Biological blood globulin wood adhesive

The invention discloses a biological corpuscle protein wood adhesive, relates to a wood adhesive, and solves the problems that the prior synthesized resin adhesive releases formaldehyde, pollutes environment and harms human body. The biological corpuscle protein wood adhesive is biological corpuscle protein powder. The biological corpuscle protein wood adhesive consists of the biological corpuscle protein powder and a reinforcing agent. The biological corpuscle protein wood adhesive has the advantages that the biological corpuscle protein wood adhesive does not pollute the environment and has no harm to the human body, does not change production processes and parameters of the prior artificial boards after the adhesive is applied to adhering core boards, three-layer base materials of solid wood composite floors and multilayer floor base materials, and is easy to coat. Adhesive layers are even, and release amount of the formaldehyde is 0 to 0.4 milligram per liter.

Novel flame redundant material and preparation method thereof

The invention relates to a novel flame redundant material and a preparation method thereof. The flame redundant material comprises the following raw materials in part by weight: 100 parts of polypropylene, 5 to 16 parts of modifier, and 5 to 50 parts of compound flame redundant. The novel flame redundant material has better flame redundancy, and can effectively reduce the occurrence probability of fire disasters and damage caused by the fire disasters compared with other polypropylene plastic foaming materials. In the same foam expansion ratio, the method can prepare flame redundant materials with different flame redundancy by controlling the content of the compound flame redundant.

Novel flame redundant material and preparation method thereof

The invention relates to a novel flame redundant material and a preparation method thereof. The flame redundant material comprises the following raw materials in part by weight: 100 parts of polypropylene, 5 to 16 parts of modifier, and 5 to 50 parts of compound flame redundant. The novel flame redundant material has better flame redundancy, and can effectively reduce the occurrence probability of fire disasters and damage caused by the fire disasters compared with other polypropylene plastic foaming materials. In the same foam expansion ratio, the method can prepare flame redundant materialswith different flame redundancy by controlling the content of the compound flame redundant.

Regenerative chamber structure of novel coke oven

The invention relates to a regenerative chamber structure of a novel coke oven, which comprises a wall body structure which is constructed by silica bricks above a preset height, constructed by clay bricks below the preset height, and provided with a sliding layer at the preset height; and the small flue partition wall is used for dividing the small flue area of the regenerative chamber or the whole regenerative chamber into two parts. According to the invention, according to the expansion rate of the material, silica bricks can be used for building above the preset height, and clay bricks can be used for building below the preset height, so that the deformation caused by the expansion of the material is reduced, the inclination of the heat storage chamber is avoided, and meanwhile, the silica bricks in the small flue area are prevented from bursting due to temperature difference; and the phenomenon that gaps between bricks in the length direction of the masonry of the regenerative chamber ...

Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof

The invention relates to a low-temperature heat energy recovering apparatus of heat and electricity co-generation and a recovering method thereof. The apparatus comprises a steam boiler, a steam turbine, a generator, a condenser, a deaerator, a high-pressure heater, a cooling tower and a demineralized water pump. The steam turbine is connected with the condenser through an exhaust cylinder. The condenser is connected with the cooling tower through pipelines to form a water channel large circulation. The device is characterized by also comprising a water supplementing mixer and a heat pump type feed water heater, wherein the water supplementing mixture is respectively connected with the condenser and the demineralized water pump through pipelines, the heat pump type feed water heater is respectively connected with the water supplementing mixer and the deaerator through the pipelines. The condenser and the feed water heater are connected with the cooling tower through pipelines to form water ...

Novel anti-explosion decarbonization process system for coke oven

The invention relates to a novel explosion-proof decarbonization process system for a coke oven. Comprising a nitrogen supply system and a gas heating system, the gas heating system comprises two groups of gas pipelines arranged corresponding to a combustion chamber, a coke oven gas main pipe, two groups of vertical flues communicated with each other, two groups of small flues and two groups of waste gas shutters, and the nitrogen supply system is connected with the two groups of gas pipelines respectively; the gas heating system is used for closing gas input of a group of gas pipelines; starting nitrogen input of a group of gas pipelines; a waste gas opening and closing device communicated with one set of vertical flame paths is connected to a waste gas opening, and a waste gas opening and closing device communicated with the other set of vertical flame paths is connected to an air opening; starting gas input of the other group of gas pipelines; and closing the nitrogen input of one group ...

Thermoelectricity co-generation energy-saving device for supplying heat by using waste heat and energy-saving method thereof

The invention provides a thermoelectricity co-generation energy-saving device for supplying heat by using waste heat and an energy-saving method thereof. The device comprises a steam boiler, a turbine, an electric generator, a steam condenser, a deaerator and a cooling tower, wherein the turbine is connected with the steam condenser by an exhaust hood, and the steam condenser is connected with the cooling tower to form a big circulation of waterway; the device also comprises a waste heat utilization hot water heater comprising an absorbing type heat pump and a heat exchanger; a steam inlet of the absorbing type heat pump is connected with an extraction opening of the turbine, a water inlet of the absorbing type heat pump is connected with a water returning end of a hot water pipe network, and the steam condenser, absorbing type heat pump and cooling tower are connected to form a small circulation of waterway; a steam inlet of the heat exchanger is connected with the extraction opening of ...

Combined heat and power generation energy saving device using afterheat to supply heat and energy saving method

The invention relates to a combined heat and power generation energy saving device using afterheat to supply heat and an energy saving method. The combined heat and power generation energy saving device comprises a steam boiler, a steam extraction condensed type steam turbine, an electric generator, a condenser, a deaerator and a cooling tower, wherein the steam extraction condensed type steam turbine is connected with the condenser by an exhaust steam cylinder, and the condenser is connected with the cooling tower to form large waterway circulation; the combined heat and power generation energy saving device also comprises a backpressure turbine, a compression heat pump and a heat exchanger, wherein a steam inlet of the backpressure turbine is connected with a steam extraction hole of the steam extraction condensed type steam turbine, an exhaust steam hole is connected with a steam inlet of the heat exchanger, the compression heat pump is drawn by the backpressure turbine and is connected ...