136results about How to "Fully dehydrated" patented technology

The invention discloses a method for preparing biochar from water hyacinth. The method is mainly characterized by comprising the steps of cleaning expanded parts of leaf stalks of water hyacinth as raw materials, cutting, primarily dewatering, fully dewatering in a freeze-drying machine, quickly heating the freeze-dried raw materials in a tubular furnace in the absence of oxygen (pre-filling nitrogen to remove air from the furnace), and after the raw materials reach the set temperature and the temperature is kept for a certain time, obtaining the water hyacinth biochar. The biochar prepared by adopting the method has a good structure and stable performance, serves as high-quality active carbon and is wide in application range. A new way is opened up for water hyacinth recycling, and the headache for the problem of ecological invasion of the water hyacinth is conveniently solved.

The invention relates to a combination type efficient sludge dewatering conditioning method and belongs to the field of sludge dewatering preprocessing. According to the technical scheme, the method includes performing acidification treatment on sludge to be dewatered through concentrated sulfuric, adjusting the pH of a sludge system to range from 3.5 to 5, and stirring for 15 to 30min through a stirring blade; adding strong oxidizing agent, namely potassium ferrate, with the content of 0.2% to 4% of the total solid sludge into acidified sludge after water dissolving, stirring for 2min in the speed of 200 to 300 r/min rapidly, and stirring for 20 to 40min in the speed of 80 to 150 r/min slowly; adjusting the pH to range from 3.5 to 5 through concentrated sulfuric, adding ferrous sulfate with the content of 4% to 8% of the total solid sludge after preparing the ferrous sulfate as solution with the concentration of 20% to 50%, after stirring and scattering, adding H2O2, with the concentration of 30%, with the content of 4% to 8% of the total solid sludge, and reacting for 30 to 50min completely during slow stirring; finally, adding quicklime with the content of 3% to 8% of the total solid sludge into the sludge conditioning system, adjusting the system pH to range from 6 to 8, scattering the quicklime evenly, and dewatering.

The invention provides a gauze drying and disinfecting device, and relates to the technical field of textile machinery. The gauze drying and disinfecting device comprises a base, the top of the base is fixedly provided with a drying box, a first support and a second support, a material conveying rotating shaft and a material collecting rotating shaft are arranged on the first support and the second support respectively in a penetrating mode, the material conveying rotary shaft and the material collecting rotary shaft are respectively and fixedly provided with a material conveying rotary disc and a material collecting rotary disc, and the drying box is divided into a dehydrating chamber and a drying and disinfecting chamber. According to the gauze drying and disinfecting device, an upper pressing roller, a lower pressing roller, a second roller shaft, a first roller shaft, a driving motor, a transmission gear and an extrusion spring are arranged in a cooperated mode, the driving motor drives one of the second roller shafts to rotate, the lower pressing roller is driven to rotate together through the transmission gear, the corresponding upper pressing roller is driven to rotate in the rotating process of the lower pressing roller, the gauze is dehydrated, the follow-up drying work is facilitated, the squeezing effect of the gauze is increased through the squeezing spring, and dewatering is more sufficient.

The invention relates to a combined conditioning method for sludge high-efficient dehydration, and belongs to the field of sludge dehydration pretreatment. The method comprises the following steps: acidifying sludge to be dehydrated by concentrated sulfuric acid, adjusting the pH value of the sludge system to a range of 3.5-5, continuously stirring the sludge system by a stirring pad for 15 to 30 minutes; adding a strong oxidant (potassium ferrate) accounting for 0.2 to 4% of the total dried sludge weight into the acidified sludge, wherein the potassium ferrate is dissolved by water before addition; rapidly stirring the sludge for 2 minutes at a stirring speed of 200 to 300 r/min, then slowly stirring the sludge for 20 to 40 minutes at a stirring speed of 80 to 150 r/min; then adding polymeric ferric sulfate accounting for 6 to 12% of the total dried sludge weight into the sludge conditioning system, wherein the polymeric ferric sulfate is dissolved by water to prepare a solution with a mass concentration of 20-50% before addition; keeping on stirring at a slow stirring speed for 15 to 30 minutes; then adding quicklime accounting for 3 to 8% of the total dried sludge weight into the sludge conditioning system, adjusting the pH value to a range of 6-8, evenly dispersing the quicklime, and immediately dehydrating the sludge.

A dewatering device for medical treatment comprises a bottom plate, a support device, a cover plate device, a frame body and a motor device. A first inclined rod and a second inclined rod are arranged on the bottom plate. A first supporting rod, a first transverse rod, a third inclined rod, a first vertical rod and a second transverse rod are arranged on the support device. A first cover plate, a second vertical rod, a third vertical rod, a positioning ring, a pull frame, a first spring, a first cooling frame and a first heating bar are arranged on the cover plate device. The frame body is provided with a first through hole, a first filter screen, a blocking column, a cushion block, a second cover plate, a first holding rod, a second cooling frame, a second heating bar and a check ring. The motor device is provided with a motor, a rotating shaft, a fixed ring, a positioning frame, a third transverse rod, a fixed frame and a wheel. Sufficient dewatering and drying can be conducted on medical instruments, dewatering is rapid, the effect is obvious, medical work efficiency can be greatly improved, labor intensity of medical staff is relieved, medical instruments are disinfected after heating, and disease infection is avoided.

The invention relates to the field of food preservation, in particular to compressed and preserved fruits and vegetables produced by ultralow-temperature freeze-drying equipment through low-temperature drying, retaining of food nutrient substances, prolonging of food shelf life and reducing of food size. A production process includes following steps: 1), washing; 2), shredding; 3), drying; 4), compressing; 5), packaging. Low temperature is utilized for drying, so that strong dewatering can be realized without damaging nutrition of the fruits and the vegetables, dewatering effect is good, own color of the fruits and the vegetables can be maintained even, and the shelf life is prolonged greatly; in the process of drying and packaging, no additive is used, so that the fruits and the vegetables are more natural and environment-friendly, can be ready for eating by soaking with hot water or can be eaten directly and can quickly supplement energy for human bodies; compression equipment is used, so that the size is greatly reduced, and more convenience is brought to transportation and storage.

The invention discloses a catalyst for hydrogenolysis, which comprises the following components in percentage by mass: (a) 40-80% of component A; (b) 0.5 to 10% of a component B; (c) 0.01 to 1% of a component C; (d) 0.1 to 5% of a component D; and (e) 10-50% of a component E; the preparation method of the catalyst comprises the following steps: (1) dropwise adding a sodium carbonate solution and afirst metal salt solution into deionized water; (2) adding a second metal salt solution and the component E; and (3) filtering, forming and calcining the solution to form a catalyst finished product.According to the catalyst, a small amount of second metal components containing elements such as zinc, magnesium, calcium and barium are added into copper, nickel and palladium as main components, sothat the dispersion effect of the main components such as copper, nickel and palladium in the catalyst can be effectively improved, and meanwhile, the reaction activity and the reaction stability ofthe catalyst are improved.

The invention belongs to the field of pelletizer equipment, in particular to an automatic dehydration and forced feed high-efficiency pattern material pelletizing integrated machine. The automatic dehydration and forced feed high-efficiency pattern material pelletizing integrated machine comprises a pelletizer set, and also comprises a crawler-type dehydration and feed device and a secondary extrusion and feed device; the crawler-type dehydration and feed device comprises two sets of extrusion conveyer belts and driving mechanisms a separately used for driving the two sets of extrusion conveyer belts to drive; the two sets of extrusion conveyer belts are arranged top and bottom oppositely; a top extrusion conveyer belt a comprises an extrusion face and a feed face; the extrusion face and a bottom extrusion conveyer belt b are oppositely arranged and form an extrusion passage; an angle formed between the feed face and the extrusion face is an obtuse angle; the discharge end of the extrusion conveyer belt b is connected with the feed end of the secondary extrusion and feed device; and the discharge end of the secondary extrusion and feed device is connected with the feed port of the pelletizer set. The automatic dehydration and forced feed high-efficiency pattern material pelletizing integrated machine disclosed by the invention has the advantages of being simple in structure, convenient to use, high in production efficiency and automation degree, reduced in amount of labor and fast in feed rate, and being capable of saving electric quantity and reducing occupied area.

The embodiment of the invention provides a baking-free ecological brick made of waste subway engineering mud and a making method of the baking-free ecological brick and aims to solve the problem thatin the prior art a baking-free brick made of waste subway engineering mud cannot meet use standards because of a too high water content. The baking-free ecological brick comprises the following components in parts by weight: 60-80 parts of waste subway engineering mud, 7.5-20 parts of a dewatering agent, 12-25 parts of a monopotassium phosphate solution and 0.5-2.0 parts of borox. The making method comprises the following steps: putting a dewatering agent with overburnt magnesium oxide into the waste subway engineering mud, and carrying out uniform stirring so as to obtain a mixed material A;putting a monopotassium phosphate solution and borox into the mixed material A, and carrying out uniform mixing so as to obtain a mixed material B, wherein the water content of the mixed material B is22-30%; carrying out coextrusion on the mixed material B so as to obtain a primary brick block; and maintaining the primary brick block for days in an environment of which the temperature is 18-22 DEG C and the RH (relative humidity) is greater than or equal to 65%, so as to obtain the baking-free ecological brick.

The invention aims to provide a centrifugal type sludge dehydrating device. The centrifugal type sludge dehydrating device comprises a housing, a base, a centrifugal barrel, a stirring mechanism, a first drive motor and a second drive motor, wherein the housing is of a tubular structure; the housing is reversely buckled on the base in a mode of enabling the bottom to face upwards; the centrifugalbarrel is coaxially arranged in the housing, and the centrifugal barrel can be fixedly arranged on the base in a rotatable mode; the stirring mechanism comprises an upper drive shaft, a mounting box,two third drive motors, two transverse stirring shafts and a longitudinal stirring shaft. The centrifugal type sludge dehydrating device can be used for sufficiently dehydrating sludge, so that the dehydrated sludge can reach specified water content standards, and therefore, follow-up treatment application is facilitated, environmental pollution is facilitated, miniaturization is facilitated and use is convenient.

The invention belongs to the field of resourceful treatment of solid waste containing heavy metals, and particularly relates to a method for preparing a high-value spinel material by resourcefully treating electroplating sludge. The method comprises the following steps: drying and crushing electroplating sludge, and then pre-roasting; supplementing positive bivalent or positive trivalent metal cation oxide to obtain a sludge treatment material; carrying out refined particle treatment and tabletting on the sludge treatment material, then carrying out high-temperature sintering, crushing and grinding, and washing with acid and water; and finally filtering and drying to obtain the spinel material. According to the method, the electroplating sludge containing rich heavy metals is converted into the spinel material, the application range of resource utilization of the electroplating sludge is expanded, and a new method for treating and disposing the electroplating sludge is provided.

The invention discloses a polygonatum sibiricum processing manufacturing process. The process comprises the following steps: weighing, baking, peeling, dehydrating, slicing, cooking, anti-mold treatment and vacuum packaging. Through the cooperation of a second horizontal rod, a slide block, a material blocking plate, a telescopic spring, an air cylinder, an extrusion plate, a first material guideplate and a second material guide plate, the purpose of automatic feeding and controllable feeding amount is realized; through the setting of a second motor, a second rotating shaft and rotating blades, the stirring of ginger-shaped polygonatum sibiricum in a rotating chamber can be realized while the rotating chamber is rotated, and the dehydrating and cleaning are more fully; and through the setting of a horizontal pipe, vertical pipes, a first valve, a second valve and water permeable holes, dehydrating apparatus not only can clean the ginger-shaped polygonatum sibiricum, but also can dehydrate the ginger-shaped polygonatum sibiricum, the diversity of the dehydrating apparatus is realized, and thereby the application range of the apparatus is improved.

The invention discloses a concentrating and drying system and a concentrating and drying method for sludge treatment. The concentrating and drying system comprises a water inlet pipe, a flocculant dissolving tank, a sludge tank, a mixing box, a dehydrating machine, a drying machine and a receiving barrel, wherein the water inlet pipe is connected with the flocculant dissolving tank; a metering pump is arranged between the flocculant dissolving tank and the mixing box; a sludge pump is arranged between the sludge tank and the mixing box; and a filter pipe is arranged between the mixing box and the dehydrating machine. The concentrating and drying method comprises the following steps: (a) drug pre-preparation, (b) mixing reaction; (c) concentrating and dehydrating; (d) drying and preheating; and (e) drying and dehydrating. The drying system is high in work efficiency, time-saving and labor-saving, a lot of sludge can be continuously dried, the drying effect is good, the dying method is simple in operation, reasonable and effective, the drying quality is easy to control, the dried sludge can be used as an organic fertilizer, the utilization rate of the sludge is increased and the waste is changed into treasure.

The invention discloses vegetable noodles and relates to the field of food. Especially, food nutrient substances in the vegetable noodles are reserved and the shelf life is prolonged by low-temperature drying. The vegetable noodles disclosed by the invention are characterized in that the noodles are prepared by the following steps: cleaning, pulping, drying, powdering, dough making, aging, noodlecutting and the like. According to the vegetable noodles disclosed by the invention, vegetables are subjected to low-temperature drying, a big amount of water is removed under the condition of not damaging the vegetable nutrients, the water removal effect is good, even the color of the vegetables can be maintained, and the shelf life is greatly prolonged; and meanwhile, a Pu'er tea component is added, so the noodles contain the tea fragrance, the nutrient substances of the Pu'er tea are mixed with the noodles, and the edible mouthfeel of the noodles is improved by adding the fragrances of thevegetables and the Pu'er tea to the noodles.

The invention provides a centrifugal sludge dewatering device based on ultrasonic. The centrifugal sludge dewatering device comprises a shell, a base, a centrifugal cylinder, a stirring mechanism, anultrasonic generator, a first drive motor and a second drive motor, wherein the shell is of a cylindrical structure and the shell is buckled onto the base in an inverted manner that the bottom faces upwards; the centrifugal cylinder is coaxially arranged inside the shell and the centrifugal cylinder is rotatably fixedly arranged on the base; the second drive motor drives the centrifugal cylinder to rotate; the ultrasonic generator is arranged on the inner side of the bottom of the shell and the transmitting direction of the ultrasonic generator directly faces the cylinder opening of the centrifugal cylinder; and the stirring mechanism comprises an upper drive shaft, an installation box, two third drive motors, two transverse stirring shafts and a longitudinal stirring shaft. Sufficient dewatering can be carried out on sludge, a specified moisture content standard can be reached after sludge dewatering treatment, and further sterilization treatment is carried out by using ultrasonic inthe dewatering process, so that the device is beneficial to environmental protection.