219results about How to "Achieve dehydration" patented technology

The invention discloses an organic composite flocculant for conditioning and dehydration of sludge. An active substance of the organic composite flocculant mainly comprises a cationic organic compound A and a polymeric organic flocculant B in a mass ratio of (1-20):1. By combination of the two compounds, the unexpected synergistic effect can be obtained on the basis of no increase of the cost of the flocculant for sludge treatment, so that flocs formed in the flocculation process of the sludge are dense, the formation of large gelatinous flocs caused by adding a polymeric flocculant is avoided, and the moisture in the flocs can be optimally released so as to reduce the final water content in the sludge; and meanwhile, the specific resistance of the sludge can be remarkably improved, so that the filtration characteristic of the sludge is improved.

The invention discloses a process method for preparing polyoxymethylene dimethyl ethers. The method includes the steps that formaldehyde gas is cooled to 100 DEG C and below, so that vapor is removed; dehydrated gas formaldehyde is directly absorbed by a mixture of polyoxymethylene dimethyl ethers DMM1-2 and polyoxymethylene dimethyl ethers DMM6-10 of different degrees of polymerization, then a reaction is conducted, polyoxymethylene dimethyl ethers DMM 3-5 are prepared, and DMM1-2 and DMM 6-10 with the DMM 3-5 separated continuously serve as raw materials and are recycled. According to the method, formaldehyde gas generated by methanol oxidation is cooled to 100 DEG C and below, vapor is condensed into liquid water, the purpose of dehydration is achieved, and due to the fact that water in the formaldehyde is removed before being absorbed by reactant, and the situations that a polycondensation reaction occurs and device is blocked by paraformaldehyde generated by formaldehyde polycondensation are avoided; the mixture of the DMM1-2 and DMM6-10 also participates in a polymerization reaction and a depropagation reaction in the cyclic process and is finally converted to the polyoxymethylene dimethyl ethers DMM3-5 of the target degree of polymerization. The method is simple in process and easy to operate, the speed for generating the DMM3-5 is high, the conversion rate of the DMM3-5 is high, and energy consumption and equipment investment are lowered.

The invention discloses a deep dehydrating method of sludge, which comprises the following steps: a. tempering; adding filtrate in the sludge; adding chemical raw material with Fe3+ to stir; reacting for 2-12min; adding chemical raw material with Ca2+ to stir; reacting for 3-15min; b. dehydrating; introducing tempered sludge into filter press; filtering the water in the sludge; maintaining pressure at 1.5Mpa-2.5Mpa for 30-70min.

The invention relates to a washing machine and a washing method. The washing machine comprises an inner barrel, an outer barrel and solid particles as washing medium. The inner barrel is rotatably arranged on the inner side of the outer barrel, the inner barrel is divided into two layers which are respectively a first inner barrel and a second inner barrel, the second inner barrel surrounds the outer side of the first inner barrel, a plurality of discharge ports enabling the particles to be left out are formed in the barrel wall of the second inner barrel, and a turnover plate capable of turning over and being opened is arranged on each discharge port. The washing machine enables the turnover plate to be opened automatically through centrifugal force generated by the inner barrel rotating at high speed enables, the particles are left out to from the inner barrel to the outer barrel, and are recovered to a material storing space, and therefore separating and recovering of the particles are achieved, and not only is the process of the separating and the recovering of the particles simplified, but also a washing process is simplified.

The invention discloses phase transition temperature-adjusting cellulosic fiber prepared by a solvent method. The fiber comprises a porous material, a macromolecular phase-changing material and a substance with a far infrared absorption function, wherein mass ratio of the porous adsorption material to the substance with the far infrared absorption function to the macromolecular phase-changing material is 1-30:1-50:10-100. Melting enthalpy value of the fiber is greater than or equal to 5.5 J/g, and crystalline enthalpy value is greater than or equal to 5.3 J/g. a preparation method of the fiber comprises the following steps: preparing a composite macromolecular phase-changing porous material; preparing a spinning solution; and spinning. According to preparation of the composite macromolecular phase-changing porous material, the porous adsorption material and the substance with the far infrared absorption function are added into the molten macromolecular phase-changing material to carry out adsorption and mixing. The phase transition temperature-adjusting cellulosic fiber prepared by the method has characteristics of pollution-free production process and green and environmental-protection product. As the porous adsorption material is used to adsorb the macromolecular phase-changing material, loss during formation process is minimized, and the phase transition temperature-adjusting function of the fiber is guaranteed.

The invention discloses fusion-method-prepared functional graphene cellulose fiber. The fiber mainly comprises 0.5-10.0% of graphene and 90.0-99.5% of cellulose. A preparation method of the graphene cellulose fiber comprises procedures of graphene dispersion liquid preparation, cellulose/ionic liquid mixture preparation, mixing, pre-fusing, spinning solution preparation and spinning. The far infrared normal emissivity of the prepared functional graphene cellulose fiber reaches 0.83-0.98, the ultraviolet protection coefficient reaches 62.78-560.21, the ultraviolet a transmittance is smaller than 4.92%, and compared with common viscose, the graphene cellulose fiber has the advantage that the thermal decomposition temperature is raised by 10-42 DEG C. By means of the method, the production process is short, less pollution is caused to the environment, the requirement of sustainable development is met, and the method has great significance for achieving a high-temperature melt spinning route of the functional cellulose.

The invention provides an internal cylinder of a washing machine and the washing machine with same. The internal cylinder of the washing machine comprises an internal cylinder body, and a lifting rib which is arranged on the inner wall of the internal cylinder body, wherein the internal cylinder body is provided with a mounting part on which the lifting rib is mounted; at least part of the lifting rib is radially and movably arranged along the internal cylinder body, so that the maximum distance between a preset part of the lifting rib and the mounting part gradually decreases until meeting the preset dewatering distance when the internal cylinder body is in the dewatering state. With the adoption of the internal cylinder of the washing machine, the problems of high vibration and loud noise which easily occur in the dewatering process of a roller washing machine in the prior art can be solved.

The invention discloses a comprehensive utilization method of low metamorphic bituminous coal. The comprehensive utilization method comprises steps of (1) coaling; (2) preheating hot exhaust gas; (3) conducting high-temperature pyrolysis and carbonization; (4) modifying smokeless coal after pyrolysis; (5) conducting dry quenching on modified smokeless coal to generate high-temperature combustible hot exhaust gas; (6) discharging smokeless coal after dry quenching; (7) leading out raw coke oven gas produced by pyrolysis in the step (3), purifying and burning; (8) conducting dry quenching on the smokeless coal by exhaust gas after burning, namely the step (5); (9) modifying the smokeless coal by the high-temperature combustible hot exhaust gas produced by dry quenching, namely the step (4); (10) preheating hot exhaust gas for gas supplement and burning of the high-temperature combustible hot exhaust gas, namely the step (2); (11) dewatering the low metamorphic bituminous coal with big moisture content by preheated hot exhaust gas; (12) discharging moisture; (13) sending the low metamorphic bituminous coal after dewatering to the step (1); and (14) supplementing new low metamorphic bituminous coal with big moisture content.

The invention discloses an oil-water slag separation device for kitchen garbage. The separation device comprises a feeding box, an oil-water separator and a solid-liquid separation rotary drum; a material outlet of the feeding box is communicated with a material inlet of the oil-water separator, and a material outlet of the oil-water separator is communicated with a material inlet of the solid-liquid separation rotary drum; the upper part of the oil-water separator is provided with an oil scraping collector, the middle part of the oil-water separator is provided with inclined plates, the bottom part of the oil-water separator is provided with aerator pipes, and each inclined plate is inclined in the reverse material flow direction; the inner wall of the solid-liquid separation rotary drum is provided with a conveying screw, and the side wall of the solid-liquid separation rotary drum is provided with sieve holes. The oil-water slag separation device for the kitchen garbage has the characteristics of simple structure, convenient operation, small power consumption, short treatment cycle, high degree of automation and the like, can effectively dewater the kitchen garbage, simultaneously separates out oil and water, and meets the needs of further treatment and utilization; and the oil-water slag separation device for the kitchen garbage can significantly decrease the oil content and the water ratio of solid matters, shortens the treatment cycle in a greater degree, and is more conducive to subsequent resource utilization.

The invention provides a system for drying and decomposing wet acetylene sludge and firing cement clinker by using the wet acetylene sludge as a calcium raw material. The system is characterized in that hot air drawn off from a clinker cooler and/or a kiln head cover is mixed in an air collecting pipe, then enters a drying crusher, exchanges heat with the calcium raw material fed into the drying crusher, finally passes through a powder concentrator, a cyclone dust collector and an exhaust gas draught fan and enters the bottom of a decomposing furnace for burning of fuel in the decomposing furnace; the calcium raw material is dried by hot air in a kiln head and subjected to powder concentration, then is directly and separately fed into the decomposing furnace and decomposed in the decomposing furnace, and finally is converged with non-calcium raw material powder preheated by a preheater system in the decomposing furnace, the calcium raw material and the non-calcium raw material powder enter a rotary kiln together so as to fire the cement clinker, and all the calcium raw material is the wet acetylene sludge. The system has the advantages that the wet acetylene sludge and the carbon dioxide reaction mechanism are fully combined, hot air mainly comprising nitrogen and oxygen is used as a drying hot source, and the acetylene sludge and the carbon dioxide are effectively prevented from being synthesized into calcium carbonate, so that the decomposition temperature and decomposition heat of calcium hydroxide are reduced.

The invention relates to a mechanical dehydration treatment method for sludge modification, which comprises the following steps that: (1) after dehydrating agent, ferrous sulfate, lime and deodorant are added into original sludge with water content of 80-85 percent, agitation is conducted to form original sludge A; (2) water with weight accounting for 30-50 percent of the weight of the original sludge is added in the original sludge A and agitation is continuously conducted to form sludge slurry; (3) the sludge slurry is treated in a coarse crusher to enable small liquid drops in the sludge slurry to be gathered into large liquid beads which take a demulsification effect and to remove solid impurities in the sludge slurry; (4) the sludge slurry treated by the coarse crusher is pressurized in a pressure filter to ensure that solid and liquid in the sludge slurry are separated to form sludge cakes; and (5) the sludge cakes are evenly stacked, the stacking height is 30-50cm, the sludge cakes are naturally dried for 48-72 hours and dried sludge cakes with water content of 20-30 percent are obtained. The invention has the advantages that the sludge dehydration decrement effect is obvious; and no secondary pollution is caused in the process of treatment.

The invention relates to an extrusion type sludge dewatering device, and solves the problems that the water content of mud cakes cannot be ensured, the filter pressing efficiency is low, the working strength is large, and the energy dissipation is high in the prior art. According to the technical scheme, the extrusion type sludge dewatering device comprises a drum, wherein the drum is internally provided with a rotating shaft, the rotating shaft is provided with a first rotating block, the first rotating block is provided with a first extrusion plate, the rotating shaft is provided with a second rotating block, and the second rotating block is provided with a second extrusion plate; the drum is internally provided with an inner bucket, the inner bucket is provided with liquid outlet holes,each liquid outlet hole is internally provided with a filter net, the drum is provided with a feed port, the drum is provided with a rotating block, the rotating block is provided with through holes,the rotating block is provided with clamping blocks, the inner bucket is provided with a check block, the drum is provided with a discharge port, the discharge port is provided with a pressure switch, and the drum is provided with a fixing device; the first extrusion plate is fixed, the second extrusion plate rotates to extrude sludge, the inner bucket rotates, the rotating block rotates, the feed port is opened, the sewage enters into the feed port, the discharge is opened, and the sewage falls off; the inner bucket rotates and resets, the feed port is closed, the first extrusion plate rotates, and the second extrusion plate is fixed; efficient dewatering of the sludge can be achieved.

The invention relates to a spiral driving device and a mop using the same. The spiral driving device comprises an outer pipe, a sleeve, a guide screw block, a connecting rod and a driven piece, wherein two pairs of convex ribs are longitudinally arranged on the inner wall of the outer pipe, and a dovetail groove is formed between each pair of convex ribs; a dental plate with threads on one inner surface is inserted and clamped in each dovetail groove, and the sleeve is coaxially arranged at the top end of the outer pipe in a locking way; the guide screw block is clamped between the two dental plates, and the connecting pipe is axially inserted in the outer pipe; and the driven piece is fixedly arranged at the top end of the connecting rod, and is selectively driven by the guide screw block and rotates together with the connecting rod. In the invention, the spiral driving device with an automatic clutch function is utilized to drive the mop to rotate at high speed so as to achieve the dehydration object by centrifugal force generated by high-speed rotation; and the invention overcomes the defects that the usual self-rotating mop is easily damaged and the service life of a one-way bearing is short.

The invention relates to an aluminum scrap recycling device which comprises a duplex packing auger, a crusher, a dehydrator, a magnetic separator, a dryer and a melting tank, wherein a first spreading plate lifter is arranged between the duplex packing auger and the crusher; a second spreading plate lifter is arranged between the crusher and the dehydrator; a third spreading plate lifter is arranged between the dehydrator and the magnetic separator; and a fourth spreading plate lifter is arranged between the magnetic separator and the dryer. The aluminum scrap recycling device is used for recycling aluminum scraps, is low in energy consumption, is high in production efficiency, is safe and reliable, and saves cost.

The invention belongs to the technical field of fruit processing, and particularly discloses a fruit cleaning device. The fruit cleaning device comprises a machine frame and a cleaning mechanism, wherein the cleaning mechanism comprises an outer cylinder and an inner roller; a plurality of vertical rods and a plurality of horizontal rods are arranged on the side wall of the inner roller; magnets are respectively arranged on the outer cylinder and the vertical rods; a plurality of brushes are respectively arranged on each of the vertical rods; a rotating shaft is connected to a driving mechanism; a transmission shaft is connected to the bottom of the rotating shaft through a universal joint; a push rod is in threaded connection to the rotating shaft; a guide rail is connected to the push rod; a telescopic rod is arranged at the bottom of the guide rail; press blocks are symmetrically arranged at two ends of the push rod; an annular door is arranged at the bottom of the outer cylinder; ablind hole is formed in the bottom of the outer cylinder; a tapped block is connected to the blind hole through a spring; a groove is formed in the annular door; a lug is arranged at the bottom of the transmission shaft; a discharging mechanism is arranged just below the cleaning mechanism; a feeding opening is formed in the top of a discharging cavity of the discharging mechanism; a mesh screenis arranged at the middle part of the discharging cavity; and a water collecting tank is connected to the bottom of the discharging cavity. Through adoption of the technical scheme of the fruit cleaning device disclosed by the invention, the problems of being poor in fruit cleaning effect, low in efficiency and not suitable for batch production are solved.

The invention relates to a sand and water separation system and method, can effectively separate mud, water and sand in a mud, sand and water mixture, and also can dehydrate the sand and the water efficiently. The sand and water separation system comprises a dehydration screen, a rotational flow device or a rotational flow device group and a vibrating and screening device; the vibrating and screening device and a wide-amplitude water-storage-type dehydration screen are integrated on a base; the rotational flow device or the rotational flow device group is integrated above the wide-amplitude water-storage-type dehydration screen through a support frame; a sand and water mixture is conveyed between the vibrating and screening device and the wide-amplitude water-storage-type dehydration screen through a sand flowing groove; the wide-amplitude water-storage-type dehydration screen is positioned on a rack through a shock absorber; the wide-amplitude water-storage-type dehydration screen is driven by a shock excitation motor or a cam wheel driving mechanism; a wide-amplitude water storage groove is positioned below the wide-amplitude water-storage-type dehydration screen; a material inlet of the rotational flow device or the rotational flow device group is communicated with an outlet of a slurry pump at the side part of the rack through a conveying pipeline; and the motor drives the slurry pump through a belt driving mechanism.

The invention discloses a snail-like centrifugal ventilation device, and aims to provide the snail-like centrifugal ventilation device which can improve the ventilation volume of an air purification system and the working efficiency of the system. The snail-like centrifugal ventilation device comprises a main ventilation pipe (1) and an air inducing pipe (2), wherein the front half part of the main ventilation pipe (1) is circular, and the rear half part of the main ventilation pipe (1) is a reducing conical part; a port of the front half part of the main ventilation pipe (1) is sealed, and the port of the rear half part of the main ventilation pipe (1) is an air outlet (10); the side wall of the rear half part of the main ventilation pipe (1) is provided with a plurality of small holes (11); and the air inducing pipe (2) is communicated with the front half part of the main ventilation pipe (1), is perpendicular to the main ventilation pipe (1) and is tangent to the main ventilation pipe (1). The ventilation device can be widely applied to purification systems.

The invention discloses an additive of deep dehydrated sludge, which consists of 0.3-2% Fe3+ chemical raw material and 0.5-5% Ca2+ chemical raw material. The charge of colloid particle is neutralized with particle unstably, which sediments to filter water.

The invention discloses an environmentally-friendly automatic medical plastic garbage treating device, which comprises a base. A treating tank is arranged on the left side of the upper end of the base; a rotary shaft is arranged in the treating tank; a lifting plate is in movable threaded connection to the middle of the rotary shaft; a first lifting rod is connected to the upper end of a rotary motor; a heating tank is arranged on the right side of the upper end of the base; the upper end of the heating tank is connected with an air guiding tank through an air guiding pipe; a piston is arranged in the air guiding tank; a second lifting rod is arranged in the middle of the upper end of a piston; support frames are arranged on the left side of the upper end of the treating tank and the rightside of the upper end of the base; and a drive shaft is arranged in the middle of the top end of the support frames through bearings. According to the environmentally-friendly automatic medical plastic garbage treating device provided by the invention, stirring blades can move up and down during a rotation process, so that a smashing effect on medical plastic garbage is improved; and meanwhile, the air guiding tank can feed hot air into the treating box, so that a medical garbage treatment effect is improved, and the medical garbage can be fully dried and drained during a smashing process.

The invention belongs to the technical field of wet method desulfurization technology tail gas dewatering postprocessing, and provides a rear spiral-separation dewatering device for smoke water removal. A water removal pipeline is added on the basis of a smoke water removal device, after smoke enters a smoke inlet to be sequentially dewatered and processed by a spiral-separation blade and the water removal pipeline, gas is discharged out of a smoke outlet, and a water body is discharged out of a drain outlet in the lower portion of the water removal pipeline. In actual work, after the water-containing smoke enters the water removal pipeline through a gas inlet pipeline under the flow guide effect of the spiral-separation device and inverted circular truncated cone-shaped filler, the smokehits wall surface drainage filler, and under the effect of a high-molecular drainage material, liquid drops condense and converge and then flow out of a smoke duct so that the final smoke dewatering aim is achieved.

The invention discloses a super-high power ultrasonic sump oil emulsion breaking dehydration method.The method comprises the steps that water-containing sump oil in a sump oil stock tank (1) is preheated and pressurized through a water-containing sump oil pump (2) and fed into a sump oil heater (3) to be heated to 50-85 DEG C; the heated water-containing sump oil is fed into an ultrasonic actuator (5) for continuous ultrasonic initial emulsion breaking; the sump oil obtained after initial emulsion breaking is fed into a pulse type ultrasonic emulsion breaking tank (6) through a pipeline for secondary emulsion breaking; the water-containing sump oil obtained after secondary emulsion breaking flows into a settlement separation dehydration tank (7) to be heated to 40-80 DEG C for settlement and layering to obtain sump oil, sewage and solid flocculent impurities; the sump oil located at the upper portion of the settlement separation dehydration tank (7) automatically flows into a finished sump oil tank (8); sewage and impurities enter a settling pond from the bottom of the settlement separation dehydration tank (7) through a sewage disposal well.According to the two-time ultrasonic emulsion breaking, sump oil dehydration is achieved, the sump oil dehydration rate is larger than 90%, and the sewage oil content is smaller than 500 mg/L.