37results about How to "High degree of cleanliness" patented technology

The invention discloses an environment-friendly type crust leather production method, and aims at solving the problems that in a crust leather production method using conventional chrome tanning as basis, plenty of chromium ions are contained in waste water and cannot be effectively processed, plenty of leather wastes with chrome are also generated, and the environment is seriously polluted. The production method comprises the following steps of non-pickling tanning, retanning filling, dyeing fat liquoring and chrome retanning. The method adopts non-pickling non-chrome tanning technology, so solid wastes with the chrome cannot be generated. At the same time, through mutual matching with other procedures, finished leather shrinkage temperature and performance can be effectively improved so as to meet demands of leather production. At the last, the chrome retanning is adopted, only a path of waste water with the chrome is generated, waste water quantity is small, and the waste water is easy to recover and process. Therefore, compared with an existing crust leather production method using a chrome tanning method as basis, cleaning degree is high, the waste water quantity with the chrome can be effectively reduced, and the waste water is convenient to recover and process. At the same time, the leather wastes with the chrome cannot be produced, and the method is environment-friendly.

The invention discloses a preparation method and application of anhydrous calcium terephthalate whiskers. The preparation method of anhydrous calcium terephthalate whiskers includes the steps of subjecting ammonium terephthalate solution and calcium hydroxide slurry to reaction to obtain a precursor, and continuing the reaction at 120-150 DEG C in a high-pressure kettle for 1-6 h to obtain the anhydrous calcium terephthalate whiskers. The preparation method is green, low in cost and high in cleanliness level. The production process is free of three wastes, and the obtained anhydrous calcium terephthalate whiskers have large length-diameter ratio, high crystal strength and significant reinforcement effect. During the preparation of the calcium terephthalate whiskers from ammonium terephthalate and calcium hydroxide, isolated ammonia water may continue to dissolve terephthalic acid for next cycle or remaining water is also suitable for reuse after ammonia gas is recycled by means of ammonia steaming, and the whole process is free of three wastes and belongs to clean production.

The invention relates to a waste pyrolysis system with adjustable oil, gas and carbon and a method. The system comprises a pre-reaction section, a main reactor, a conditioner and a particle separator. The front of the pre-reaction section is connected to a feeder and the tail of the pre-reaction section is connected to the main reactor. The conditioner is connected after the main reactor. The particle separator is connected after the conditioner. In specific, waste having a water content not more than 60% is fed into the pre-reaction section through the feeder, reacted waste is fed to the main reactor, residue coke generated after the reaction is finished is fed into the conditioner and a generated volatile material is discharged in a forced manner into the conditioner to be contacted, reacted and conditioned with the residue coke at the same time. The conditioner achieves conditioning of the residue coke and the volatile material at the same time. The volatile material after being conditioned is fed into the particle separator to output a clean volatile material. The residue coke after conditioning has a calorific value of 3.37-6.74 MJ / kg, and can be used as building raw materials or is conveyed to a sanitary landfill. The working temperature of the pre-reaction section is 105-298 DEG C and an inert gas or flue gas is fed into the pre-reaction section. The working temperature of the main reactor is 450-650 DEG C. The working temperature of the conditioner is 700-900 DEG C. The system and the method can obtain oil with better quality and more combustible gases and are adapt to changes of the water content of the waste.

The invention discloses an environment-friendly type crust leather production method, and aims at solving the problems that in a crust leather production method using conventional chrome tanning as basis, plenty of chromium ions are contained in waste water and cannot be effectively processed, plenty of leather wastes with chrome are also generated, and the environment is seriously polluted. The production method comprises the following steps of non-pickling tanning, retanning filling, dyeing fat liquoring and chrome retanning. The method adopts non-pickling non-chrome tanning technology, so solid wastes with the chrome cannot be generated. At the same time, through mutual matching with other procedures, finished leather shrinkage temperature and performance can be effectively improved so as to meet demands of leather production. At the last, the chrome retanning is adopted, only a path of waste water with the chrome is generated, waste water quantity is small, and the waste water is easy to recover and process. Therefore, compared with an existing crust leather production method using a chrome tanning method as basis, cleaning degree is high, the waste water quantity with the chrome can be effectively reduced, and the waste water is convenient to recover and process. At the same time, the leather wastes with the chrome cannot be produced, and the method is environment-friendly.

The invention discloses a rainwater storage tank ejection-type flushing device, a control method and a rainwater storage tank. The rainwater storage tank ejection-type flushing device comprises a power pump and a rotating driver, the power pump is arranged in a water collection pit and used for delivering rainwater in the water collection pit into an ejection pipe to be ejected onto the second surface of the rainwater storage tank to flush the same, and the rotating driver is used for driving the ejection pipe to rotate in the rainwater storage tank. The flushing device can utilize the power pump to extract water in the water collection pit to vigorously flush the bottom in the rainwater storage tank when sewage in the rainwater storage tank is about to be drained. In the process of ejection-type flushing, the ejection pipe can rotate within a range of 0-260 degrees (namely being adjustable), in other words, the ejection pipe can rotate underwater to eject water flow, so that the flushing device is wide in flushing range, and the bottom of the rainwater storage tank can be cleaned in an omnibearing manner and can be flushed more cleanly.

This is a complex arrangement technology of three dimensions recall and inject drawing and printing for ready-to-wear clothes. It contains following steps: To do the arrangement for the ready-to-wear clothes: To arrange of polymerization and skein for them. Be arranged them in three dimensions in finished form by thermo-compression or to spur paint paste on their surface. To cure them on fire to fix colors, then to arrange them in their dimensions and pack them.

The invention relates to the technical field of chemical industry and comprehensive utilization of resources, and discloses a vanadium extraction method for sodium vanadium extraction tailings. The method comprises the following steps: (1) adding magnesium oxide powder or magnesium hydroxide fine powder and an optional leaching aid to the sodium vanadium extraction tailings, then adding water, mixing and ball milling to form a homogeneous slurry; (2) The slurry is placed in an autoclave to carry out a hydrothermal reaction; (3) after the reaction is completed, filter to obtain a vanadium-containing solution and a vanadium extraction residue. The invention adopts the whole wet hydrothermal extraction process, does not generate waste gas, has a high degree of cleanliness, and is environmentally friendly; compared with the traditional pyrotechnic process, the method of the invention has low production cost, and the vanadium in the vanadium tailing slag is extracted by sodiumization. The leaching rate can reach up to 69%, and a large amount of vanadium can be recovered, which has good economic and social benefits; the method of the invention is simple and feasible, and the vanadium-containing solution can be concentrated and precipitated after vanadium. % or more flake vanadium.

The invention discloses a preparation method and application of anhydrous calcium terephthalate whiskers. The preparation method of anhydrous calcium terephthalate whiskers includes the steps of subjecting ammonium terephthalate solution and calcium hydroxide slurry to reaction to obtain a precursor, and continuing the reaction at 120-150 DEG C in a high-pressure kettle for 1-6 h to obtain the anhydrous calcium terephthalate whiskers. The preparation method is green, low in cost and high in cleanliness level. The production process is free of three wastes, and the obtained anhydrous calcium terephthalate whiskers have large length-diameter ratio, high crystal strength and significant reinforcement effect. During the preparation of the calcium terephthalate whiskers from ammonium terephthalate and calcium hydroxide, isolated ammonia water may continue to dissolve terephthalic acid for next cycle or remaining water is also suitable for reuse after ammonia gas is recycled by means of ammonia steaming, and the whole process is free of three wastes and belongs to clean production.

The invention belongs to the technical field of leather making and discloses a method for making leather without tanning agents. First, the bare hide is dehydrated in a controlled manner using a molecular sieve-polar organic solvent composite dehydration medium. Subsequently, tanning agent-free leather is produced by increasing the surface roughness of the hide and reducing its surface energy. The present invention does not use any metal or non-metallic tanning agent, and has the advantage of being environmentally friendly; the present invention breaks the distribution balance of moisture between the bare hide and the polar organic solvent, and realizes the "from raw hide to polar organic solvent" for the moisture in the bare hide. Solvents, and then from polar organic solvents to molecular sieves" multi-media self-driven directional controllable dehydration, promotes continuous and controllable removal of moisture in raw hides, effectively solves the problem of low dehydration efficiency when pure polar organic solvents dehydrate bare hides, Many bath changes are required for dehydration, organic waste liquid is difficult to reuse, etc., and the molecular sieve-polar organic solvent dehydration system is easy to recover and can be used for multiple cycles for controllable dehydration of bare leather, providing a new clean system leather technology.

The invention relates to a method for producing low-odor and clean automotive interior leather by bio-enzyme technology, including fleshing, liming, deliming, softening and degreasing, pickling, tanning, retanning, dyeing, fatliquoring, drying, wrestling Softening, primer coating, middle coating, embossing, top coating and other steps. The present invention introduces a kind of biological enzyme to be used before raw hide pretreatment, tanning and retanning, which improves the efficiency of processes such as liming and depilation, degreasing and deodorization, and reduces the use of strong acids and alkalis, a large amount of surfactants and the generation of pollutants; At the same time, because the effect of degreasing treatment is strengthened, the protective effect on the leather fiber structure is obvious, and the problems such as loose surface of the product are improved. The leather obtained by using new technology and new materials is completely degreased, and the fiber interstitial removal effect is good, and the product has low odor. Low emission characteristics such as low fogging.

The invention relates to a processing method of green tea, in particular to a processing method of Guizhou Lixiang flat green tea, comprising the following steps: ① green tea withering; ⑤ Step-by-step drying; ⑥ Sieving; ⑦ Titian. The Guizhou Lixiang flat-shaped green tea produced by the method of the invention has a flat, straight and even appearance, emerald green color, long-lasting fragrance, and fresh, mellow and sweet aftertaste. Realized Guizhou Lixiang flat green tea scale, automatic continuous processing and production, high degree of cleanliness, greatly reduced labor intensity, improved production efficiency, reduced production cost, and improved product quality.

The invention relates to a glass vertical conveying to horizontal conveying device which comprises a conveying unit enabling glass to vertically move, an overturning unit enabling glass to be conveyed in a horizontal direction from a vertical direction, and a moving unit enabling glass to move in a horizontal direction. An idler wheel assembly and a shaft assembly are arranged on the conveying unit, a shaft driven by a servo motor is arranged on the overturning unit, a shaft base connected with the conveying unit is fixedly arranged on the shaft, and the moving unit is provided with a ball screw pair and a linear sliding rail so that the conveying unit on the moving unit moves along the linear sliding rail. The glass vertical conveying to horizontal conveying device is reasonable in design, simple in structure, convenient to operate, and stable and safe in conveying, also has the advantages of high transmission efficiency, little abrasion, accuracy in location, and the like, and is worthy of popularization.

The invention discloses a method for preparing (E,E)-2-[1'-(3'-trifluoromethyl phenyl)-ethyl-imine-oxyl-tolyl]-2-carbonyl methyl acetate-O-ketoxime. The method comprises the following steps of: performing acylation reaction on toluene and methyl oxalyl chloride in the presence of anhydrous aluminum chloride to prepare 2-(2'-methyl phenyl)-2-carbonyl methyl acetate; reacting the 2-(2'-methyl phenyl)-2-carbonyl methyl acetate with methoxy amine hydrochloride to prepare (E)-2-(2'-methyl phenyl)-2-carbonyl methyl acetate-O-methyl ketoxime; and finally performing condensation reaction on the (E)-2-(2'-methyl phenyl)-2-carbonyl methyl acetate-O-methyl ketoxime and m-trifluoromethyl phenyl ethyl ketoxime under the action of alkaline substance to prepare the trifloxystrobin. The method has the advantages of a few reaction steps, simple synthesis process, readily available raw materials, mild reaction conditions, great industrial value and great social and economic benefit.

The invention belongs to the technical field of leather processing and discloses a method for improving the performance of organic chrome-free tanned leather. The invention can effectively improve the color fastness, shrinkage temperature and physical sensory properties of finished leather through the organic synergy of tanning agents, dyeing and finishing materials and processes, and produce high-performance leather. The invention does not use formaldehyde-containing and chromium-containing leather chemical materials in the whole production process. Therefore, compared with the existing leather production technology based on chrome tanning, the present invention can completely eliminate chrome pollution, has a higher degree of cleaning, and is more friendly to the environment; Compared with the traditional leather production method, the leather produced by it does not contain formaldehyde and chromium, and its physical properties are obviously better, so it has higher market application value.

The present invention relates to a system using vegetable waste for production of a multi-component water soluble organic carbon fertilizer, the system includes a slag liquid separation system and a fermentation preparation system; the slag liquid separation system is provided with a liquid outlet, and the liquid outlet is connected with a liquid inlet of the fermentation preparation system. The slag liquid separation system comprises a juice collection bucket with the liquid outlet, a filter sieve and a pressing screw; the filter sieve is installed at the upper opening end of the juice collection bucket, and the screw pitch of the pressing screw located above the filter sieve is gradually reduced from a feeding port to a slag discharge port of the slag liquid separation system. The fermentation preparation system comprises a liner, a temperature control jacket for sleeving the liner, a stirrer, a mixer, and a sterile air filter in connection with the liner. The system can cleanly use the vegetable waste, can convert the vegetable waste into the fertilizer, has the characteristics of being high in degree of cleaning, thorough in killing of pathogenic bacteria, environmentally-friendly, and pollution-free, and belongs to the technical field of agricultural waste recycling and environmentally-friendly devices.

The invention discloses a clean preparation method of submicron calcium terephthalate. The preparation method comprises the following steps: a calcium hydroxide slurry with a multihole nozzle is introduced from the upper end, and an ammonium terephthalate solution with a dispersion modifier is introduced through the side surface of a high-speed centrifugal atomizer; the calcium hydroxide slurry and ammonium terephthalate solution are sufficiently mixed in a mixing chamber of a jet reactor, and enter a closed tank reactor via a diffuser chamber; and the materials are heated to the specified temperature while stirring to continue react for some time, thereby obtaining the calcium terephthalate. The method is green and environment-friendly, has high clean degree, and does not generate three wastes in the preparation process; and the obtained product is submicron particles. In the submicron calcium terephthalate preparation process, the separated ammonia water can continue dissolving terephthalic acid to enter the next circulation, or after ammonia gas is recovered by an ammonia evaporation technique, the residual water can be recycled, so the whole process does not generate three wastes and belongs to clean production.