218results about How to "Increase the amount of dissolution" patented technology

The invention discloses a smoke desulfurization and denitrification integration method and a special device thereof. The method is characterized in that a wet-method process is used in one technological system to simultaneously remove sulfur dioxide and nitrogen oxide in the smoke; an ammonium method is used for desulfurization, ammonia water is also used as a desulfurizer of the sulfur dioxide and a neutralizing agent for byproduct nitric acid produced in the denitrification process; an oxidization reduction method is used for the denitrification, a desulfurization byproduct ammonium sulfite or ammonium bisulfite is used as a reducing agent, urea is used as a reducing agent, a quinine-contained hydroxyl compound is used as a catalyst, air is blown into the denitrification circulating liquid so as to provide the dissolving oxygen and the oxidant for the oxidization reaction of the nitrogen oxide; a byproduct ammonium nitrate of the denitrification reaction is placed into the desulfurization liquid so as to recycle the nitrogen ammonium; and ammonia nitrogen chemical fertilizer ammonium sulfate and ammonium nitrate are recycled, and the entire technological flow is free from discharging sulfur-contained or ammonia nitrogen-contained waste liquid out of the system. Due to the adoption of the method, the integration of the desulfurization and the denitrification can be realized, the device is miniaturized, and no waste liquid is discharged in the technological process.

The present invention relates to preparation and application of crust oligosaccharide and belongs to the field of deep chitin processing technology. Non-specific enzyme is used to raise the hydrolysis degree of chitosan and the separation and purification of hydrolytic product. The key point of the present invention is that the chitosan material is produced into crust oligosaccharide powder through acid dissolving, heating, enzymolysis and hydrolysis with compoiste, enzyme comprising polysaccharide hydrolase, proteinase and lipase, deactivating enzyme, filtering, ultrafiltering, ion exchange or nanometer filtering, vacuum concentration and drying. The product is used in producing various functional health foods with the functions of immunological regulation and blood fat regulation.

The invention provides a method for preparing a lignin nanotube by utilizing an agriculture and forestry biomass raw materials. The method comprises the following steps: dispersing crushed biomass raw materials in an inorganic alkaline solution, adding a cosolvent into the solution, performing ball milling, then performing centrifuging, and collecting supernate; and dropwise adding inorganic acid into the supernate until the solution is neutral, and performing dialyzing by using a semipermeable membrane to obtain a solution containing the lignin nanotube. The method can effectively solve the problems of complex operation process and environmental pollution in existing methods.

The invention discloses a preparation method of fresh kiwi fruit slices. The preparation method comprises the following steps: taking fresh high-quality kiwi fruits of which the hardness is between 9.0 kg / cm<2> and 11.0 kg / cm<2> as standard raw materials, putting slices into distilled water after washing, peeling and cutting the kiwi fruits, pumping ozone until the concentration is 0.8 to 1.0 mg / L, and carrying out ultrasonic assisted sterilization for 5 to 8 minutes; then, adding the slices into a kiwi fruit mixed color protecting solution which is prepared from 0.2 percent of ZnCl2, 0.25 percent of EDTA (Ethylene Diamine Tetraacetic Acid)-2Na, 0.10 percent of ascorbic acid and 0.1 percent of citric acid for carrying out color protection, and infiltrating by using 0.5 to 2.0 percent of PEG (Polyethylene Glycol)-chitosan edible coating film after dewatering; finally, packaging by using a PP (Propene Polymer) pallet and a PE (Poly Ethylene) film, and storing at low temperature. The fresh kiwi fruit slices prepared through the preparation method have the characteristics that the appearance color is well kept, browning is not easy to cause, the bacteria inhibiting and fresh keeping effects are good, the storage period is long, and the quality is stable.

The invention relates to a method for separating and recovering valuable metals in a roasted product of a lithium ion battery. The method for separating and recovering the valuable metals in the roasted product of the lithium ion battery comprises the following steps of mixing and ball-milling a stripped positive electrode material and a stripped negative electrode material of the lithium battery;after an obtained ball-milled product is screened, carrying out reduction roasting on the screened product in an inert gas atmosphere; cooling the reduction roasting product to room temperature underan oxygen-free condition to obtain a roasted product; carrying out sectional ultrasonic-assisted low-temperature water leaching on the roasted product; carrying out magnetic separation and solid-liquid separation on a solution after the sectional leaching is finished to obtain magnetic substances (nickel, cobalt and the like), filtrate and filter residues (manganese monoxide and the like); and carrying out microwave flash evaporation treatment on the filtrate to obtain lithium carbonate crystals. According to the method for separating and recovering the valuable metals in the roasted productof the lithium ion battery, efficient separation of the valuable metals in the lithium ion battery is realized, the problem of low leaching rate of the reduction roasting products is solved by utilizing the mechanical effect and the cavitation effect of ultrasonic waves, and the leaching rate of lithium is greatly increased.

The invention relates to a method for hydrotreating heavy distillates, which comprises the following steps of: firstly, fully mixing raw oil with hydrogen gas through a heating furnace in a gas-liquid mixer; then, contacting with a hydrotreating catalyst at a low hydrogen-oil volume ratio under mild technological conditions, and carrying out a conventional hydrorefining reaction. Compared with the conventional hydrotreating method, the invention can obtain better refining effect under the same technological conditions. The method provided by the invention aims at heavy distillates of petrochemical enterprises, such as vacuum gas oil, coke gas oil, deasphalted oil or mixture oil thereof, and the heavy distillate products produced by using the technological method can be used as high-quality raw materials of catalytic cracking units or hydrocracking units. The method provided by the invention has simple technological flow, stable operation and good product characters; and a new hydrogenation unit can be built, and the old unit can also be used through reformation.

The invention relates to a method for producing low-aromatics solvent oil by hydrogenation. The method comprises the following steps of: passing raw material oil through a heating furnace, then fully mixing the raw material oil and hydrogen gas in an oil-gas mixer, and contacting with a hydrogenation catalyst in a lower hydrogen-oil volume ratio and under milder process conditions to undergo the common hydrogenated purification reaction. Compared with the conventional hydrogenated purification process, the method can achieve the same effect as the conventional purification process under milder process conditions. By the method, the low-sulfur and low-aromatics solvent oil products can be produced. In addition, the method also has the advantages of simple process flow, stable operation, high product properties and low energy consumption, and the new establishment of a hydrogenation device and the modification of the original device are both ok.

The invention relates to a diesel oil hydrodesulphurization method. According to the invention, raw oil and hydrogen are first delivered into a gas-liquid mixer through a heating furnace, such that hydrogen and raw oil are fully mixed; the mixture is delivered into a first reactor, and contacts a W-Mo-Ni hydrogenation catalyst under a hydrorefining condition; a common hydrorefining reaction is carried out, such that most of nitrides and part of sulfides are removed, and polycyclic aromatic hydrocarbons are subject to a hydrogenation saturation reaction; generated oil is delivered into stripping and hydrogen mixing equipment, such that hydrogen sulfide and ammonia dissolved in the oil are removed, and hydrogen reaches a dissolved and saturated state in the oil; the oil is mixed with supplemental hydrogen, and the mixture is delivered into a second reactor; the mixture contacts a Mo-Co series hydrorefining catalyst, and a deep desulphurization reaction is carried out, such that a good effect can be achieved. The method is provided aiming at inferior catalytic diesel oil fractions, coked diesel oil fractions or mixed diesel oil fractions of petrochemical enterprises. With the method, ultra-low-sulfur clean diesel oil with a sulfur content lower than 50mug / g or even lower can be produced.

The invention relates to a method for recovering metal elements from a waste and old ternary lithium-ion battery, belongs to the technical field of recovery of waste and old batteries, and aims at solving the problem that the conventional method is low in recovery rate of metal elements. The method comprises the following steps: disassembling the waste and old ternary lithium-ion battery, and collecting the powder of positive electrode materials of the battery; preprocessing the powder of the positive electrode materials with a mixed solution containing biogenic organic acid and bioflavonoid;filtering, and collecting the filtrate; selectively depositing the collected filtrate; recovering at least one metal element. According to the method, the adhesive component in the positive electrodematerial can be effectively removed and decomposed, so that the metal elements can be effectively separated and dissolved out, thus the dissolving rate is effectively increased, and the subsequent recovery effect of the metal elements can be ensured.

The invention relates to a hydrogen generating and hydrogen dissolving device and a hydrogen dissolving and hydrogen generating method. The hydrogen generating and hydrogen dissolving device comprises a hydrogen generating part a and a container part b. The hydrogen generating part a is a cylindrical cavity with an opening in one end, an annular frame is arranged in the cylindrical cavity along the inner wall in a sealed mode, the surface of the annular frame is covered with a nano ventilating film, and closed space is formed by the closed end in the cylindrical cavity and the nano ventilating film. The container part b is a cylindrical cavity with an opening in one end, and the shape of the cross section of the cylindrical cavity of the container part is the same as that of the cross section of the cylindrical cavity of the hydrogen generating part. The opening of the container part and the opening of the generating part are sealed in a matching and butt joint mode, and are connected to form a sealed cylindrical space, and the annular frame is fixed in the hydrogen generating part or slides along the inner wall of the sealed cylindrical space. The hydrogen generating and hydrogen dissolving device is wide in use range, can be large and small and is flexible to use; the hydrogen dissolving concentration is high, hydrogen is used on site, and carrying is convenient.

The invention discloses a disposing method of titanium and titanium alloy surface, which is characterized by the following: introducing supersonic wave to available activating craft; finishing the activation under the condition of ultrasonication; decreasing the usage of malignancy noxious pests HF in activating liquid; shorting the time of activating time; decreasing the quantity of dissolvable; extending the period of usage of activating liquid; simplifying the craft; increasing the mass transfer coefficient of buffer zinc layer; improving the arrangement of active component zinc layer; improving the deposition rate of coating; enhancing the cohesion of coating and basal body.

The invention provides a rectification method of allopurinol, in particular relates to a rectification method in which the allopurinol is converted into an allopurinol sodium salt so as to enlarge solubility, decolorizing rectification is carried out on the allopurinol sodium salt, then the allopurinol sodium salt is acidized to form the allopurinol, belonging to the technical field of chemical reaction rectification. The rectification method comprises the following steps: adding crude allopurinol in water, stirring with a dilute alkaline liquid to be clear, and controlling the pH to be neutral; adding activated carbon, and filtering under the hot condition after stirring and decoloring; slowly adding a dilute acid solution in filtrate obtained after decloring and filtering, separating out a white solid, maintaining the pH of the solution to be neutral, and continuously stirring and filtering; and washing the obtained filter cake and drying so as obtain the rectified product allopurinol. In the rectification method, the used raw material is available, reaction and treatment conditions are mild and the yield and purity of the product are high; the yield of rectification can be greatly increased by a proper improvement under the condition of the original equipment conditions, and industrialization is conveniently achieved. By using the method, the dissolving amount can be improved by 5-10 times, and simultaneously, the yield can be improved.

An ozone water producing system and control method, which is flexibly used indoor or outdoor irrespective condition of a flow channel, is provided for reconstituting polluted water as environmentally friendly. The ozone water generating system is maintained in an optimum state for improving entire performance of the system as well as predicting and preventing the backflow of ozone water, which is occurred due to outlet blocking in a discharging process. The controlling method of the present ozone water producing enables to prevent the deteriorating the performance and ensure the operation stability. The ozone water-producing system comprises an influent air controller, an injector, a gas-liquid separator, and an ozone water-backflow, preventing device. The present system and controller is designed to prevent water backflow, being frequently occurred in the conventional system, for improving the performance, stability and extending operating lifetime. Therefore, it is possible to manufacture a highly reliable ozone water-producing apparatus.

The invention relates to a brewing technology for cherry wine and belongs to the technical field of wine brewing. The brewing technology comprises the following steps: picking cherries; cleaning and drying; removing stems and kernels; breaking; fermenting; filtering, thereby obtaining cherry wine, wherein in the step of fermenting, cherry juice is added into a fermentation tank; yeast is added; the fermenting starting temperature is controlled at 18-20 DEG C; after starting to ferment for 72 hours, cherry brandy is added till the alcoholic strength is 8-11% voL; sugar is remained and fermentation is interrupted; mixing the cherry brandy with the yeast for 30 days and then separating, thereby obtaining the raw cherry wine; the temperature is controlled at 8-10 DEG C; standing is performed for 58-62 days and centrifugal treatment is performed; and filtering is performed, thereby obtaining the cherry wine. The cherry wine brewed according to the brewing technology is complete and balanced in nutrition and wine body, pure in taste, and rich in fragrance and can meet the requirements of consumers at different levels.

The invention relates to an anti-swelling stabilizer for fracturing. The anti-swelling stabilizer is prepared from an organic cationic polymer, inorganic salt, a solubilizer and water. The anti-swelling stabilizer can be directly added to a fracturing fluid for use during oil well and gas well fracturing operation. When the addition mass percentage of the anti-swelling stabilizer in the fracturing fluid is 0.5-1%, an anti-swelling rate of the anti-swelling stabilizer can reach above 90%. The anti-swelling stabilizer has high-efficiency anti-swelling performance and high-temperature resistance, is low in working concentration and low in cost, and has good compatibility with the fracturing fluid.

The invention provides a supercritical CO2 waterless staining dye pot and a waterless staining method. The supercritical CO2 waterless staining dye pot comprises a dye pot body and is characterized in that the dye pot body comprises at least two dye cylinders and a chassis, wherein each dye cylinder comprises a cylindrical shell and a top cover; the top cover is mounted at the upper end of the cylindrical shell; a metal mesh layer for placing of dyes is arranged at a lower part of the cylindrical shell, and a filter layer for filtering undissolved dyes is arranged at the upper part of the cylindrical shell; diversion holes are formed in the chassis; a rotary blocking piece for blocking the diversion holes is arranged on the bottom surface of the chassis; the lower end of the dye cylinder is mounted at a position of the diversion hole in the top surface of the chassis; inner cavities of the dye cylinders are respectively communicated with corresponding diversion holes. According to the invention, the phenomena of uneven color and staining in a waterless staining process are reduced; purposes that all dyes do not pollute each other and the amount of dye is controllable are achieved.

The invention provides a formula of asarone for injection and a preparation method thereof. In the invention, an injection is prepared by using asarone as a main ingredient, Tween-80 and polyethylene glycol (PEG)-400 as solubilizer and mannitol as an excipient, and the solubility of the asarone is improved effectively; and thus, the medicine carrying capacity of the injection is increased. The injection prepared by the invention has high re-solubility and product stability, and the preparation process is simple.

The invention discloses a method for producing electrolytic zinc, which comprises the following steps: (1) producing the electrolytic zinc from oxide material containing less than 20% of zinc serving as a raw material and by taking waste acid in a titanium white plant as a leaching agent, namely by using two wastes; (2) grinding the oxide material to obtain 80 to 100-mesh material and leaching zinc in the material by using the waste acid for about 3 to 4 h so as to obtain soluble zinc sulfate; (3) filtering and adding lime milk to regulate the pH value to 5.4 and hydrolyze impurities and rare metals in the solution to be separated out in the form of precipitate; (4) adding zinc powder into the solution without the impurities so that copper and cadmium in the solution perform replacement reaction to generate cooper and cadmium-containing precipitates which are commonly called 'copper and cadmium slag'; (5) separating the zinc from ferrous iron in the solution without cobalt, namely, hydrolyzing zinc sulfate in the solution by using lime milk as a precipitant to generate white zinc hydroxide precipitate; (6) filtering the zinc hydroxide precipitate, heating the obtained solution to about 70 DEG C and introducing air to oxidize the ferrous iron to ferric iron; and adding a proper amount of oxidant so as to oxidize the ferrous iron in the solution to the ferric iron and separate out the ferric iron in the form of precipitate, namely, removing iron by a 'goethite process'; (7) dissolving the precipitate by the electrolyzed solution and filtering, wherein the filter residue is used for preparing 'gypsum', the solution is subjected to impurity removal, evaporation, concentration and crystallization, the crystallization mother solution is returned to the leaching process, and the crystal is dissolved by water and used for preparing electrolyte; and (8) electrolyzing, stripping, melting and casting into a zinc ingot.

The invention discloses oxygenation equipment for aquaculture. The oxygenation equipment for aquaculture comprises a ship body, a ship bottom, a swing seat hole, a guide block seat, a guide block seathole, a crank gear shaft, a center hole, a through hole, a universal joint frame, a first joint, a right cross shaft, a middle joint, a left cross shaft, a second joint, paddles, a rotating seat, a sliding groove, a first motor, a swing rod, a swing block, a swing gear, a first gear, an internal thread, a screw rod, a limiting disc, a second gear, a second motor, an aeration disc, an aeration hole, an air pump, a first air pipe and a second air pipe, the bottom of the ship body is provided with the ship bottom, the left side of the ship bottom is provided with the swing seat hole, the right side of the swing seat hole is provided with the guide block seat, the middle of the guide block seat is provided with the guide block seat hole, and the crank gear shaft is arranged on the right of the guide block seat.

The invention discloses a domestic ozone microbubble vegetable and fruit cleaning machine. The domestic ozone microbubble vegetable and fruit cleaning machine comprises an ozone generator and a microbubble generator. The ozone generator generates ozone gas by adopting the principle of high-voltage corona, and the ozone generation concentration is strictly controlled through a precision electromagnetic valve; the microbubble generator generates microbubbles by adopting a gas dissolved and release method, the generated ozone is guided into the microbubble generator and therefore ozone microbubbles are generated. Ozone and microbubbles are combined to generate ozone microbubbles, the ozone dissolution amount in water is increased, and the ozone pesticide degradation, sterilization and disinfection capabilities are enhanced; meanwhile, in the microbubble generation process, a large number of oxyhydrogen free radicals can be generated through stimulation, the ozone oxidability is enhanced, and the good sterilization and disinfection effect is achieved.

This production method for a chlorinated vinyl chloride-based resin is provided with: a step in which chlorine is introduced into a suspension of a vinyl chloride-based resin in a first tank; and a step in which the suspension, having had chlorine introduced therein, is transferred from the first tank to a second tank, and irradiated with ultraviolet rays in the second tank. As a result, the chlorine dissolution amount in the suspension of the vinyl chloride-based resin is improved, and the production efficiency of the chlorinated vinyl chloride-based resin is improved.

The invention discloses a tertiary amine CO2 / N2 switch-type Gemini surfactant and a synthetic method thereof. The synthetic method comprises the following steps: (1) dissolving ethidene diamine in absolute ethyl alcohol, heating the mixture, then adding an ethanol solution where bromododecane is dissolved, and stirring the mixture to obtain a reaction liquid I; (2) cooling the reaction liquid I and filtering and drying the reaction liquid to obtain solid powder; (3) dissolving solid powder in absolute ethyl alcohol, heating the mixture, then separately dropwise adding ethanol solutions where N,N-dimethyl-3-chloropropylamine and potassium iodide are dissolved into the mixture, and stirring the mixture to obtain a reaction liquid II; and (4) cooling the reaction liquid II, washing and drying the reaction liquid II to obtain a target product, adding the target product into a closed pressure container, adding water, introducing a CO2 to obtain a surfactant, and introducing N2 to convert the surfactant into a non-surfactant. The method disclosed by the invention is simple, and can smoothly convert the surfactant and the non-surfactant, so that the surfactant can be repeatedly used, and has a wide application prospect.

The invention relates to a sewage purification processing system which sequentially comprises a grit chamber, an adjusting tank, an aerobic pond, an inclined plate sedimentation tank, a filtering tank, an ozone processing tank, wherein the bottom of the adjusting tank is provided with a preaerator, the aerobic pond is internally provided with a packing layer suspended in the middle part of the aerobic pond; an ozone oxidation pond is a plug-flow pool, and a water inlet pipeline of the ozone processing tank is provided with a pump and a venturi which are matched with each other; an outlet of the pump is connected with an inlet of the venturi, and a suction inlet of the venturi is connected with an ozone outlet of an ozonizer which adopts a plasma generator provided with an ozone air outlet;a plasma is provided with a high-voltage high frequency power supply circuit, and grille is arranged at the front par or in front of the grit chamber. The system has reasonable technique, good processing effect and lower cost, and the outlet water can be recycled in the life and industry.

The invention relates to a film evaporator for cellulose dissolving. The film evaporator comprises a cavity, a rotatable cylindrical rotor arranged in the cavity, and a row or a plurality of rows of scarper plates arranged in the periphery of the rotor along an axial direction, the scarper plates comprise vertically arranged scraper plates and obliquely arranged scraper plates, and the obliquely arranged scraper plates comprise scraper plates having a negative angle to a vertical direction, and scraper plates having a positive angle to the vertical direction. The scraper plates having a negative angle to the vertical direction provide a demixing effect for materials in the dissolving process, and effectively improve the dissolving ability and the dissolving uniformity of the film evaporator per unit area. The dissolving efficiency is improved, so low dissolving temperature and low vacuum degree are used at a certain degree in the selection of process conditions, thereby the material decomposition risk is reduced, and safe production is facilitated.

The invention provides a method for regenerating a cathode material of a waste lithium ion battery through electrolysis of molten alkali. The method includes the following steps: 1) mechanically disassembling the waste lithium ion battery, separating a mixture of the cathode material, and reducing the cathode material of the waste lithium ion battery in an argon and hydrogen atmosphere; 2) mixinghydroxide with the molten alkali, taking the pre-reduced cathode material of the waste lithium ion battery in the step 1) as a raw material, and preparing a high-quality lithium ion battery cathode material by a one-step electrolysis method. The method has the advantages that through pre-reduction, the valence state of transition metal elements in the waste lithium battery is reduced, the dissolution quantity of the transition metal elements is increased, and the problem that high-valence cathode materials are insoluble is solved. Compared with the prior art, the method has the advantages thatthe use of hydrogen peroxide and organic acids is avoided, and the recovery rate is reduced.

The invention relates to a photodynamic therapy system and a method of continuously generating singlet oxygen. The invention discloses multifunctional lanthanides nanoparticles, a preparing method thereof, a method of using the nanoparticles for generating singlet oxygen and the photodynamic therapy system. By combining a hyperbaric oxygen chamber, the lanthanides nanoparticles are excited by near infrared laser to achieve oxygen supply sensitization, so that targeted delivery of a nanoparticle drug and generation of singlet oxygen are promoted, and therefore the technical problems that in the prior art, singlet oxygen is generated insufficiently and the photodynamic therapy system is poor in effect are solved.

The invention relates to a method for dating the isotope of limestone Re-Os, and belongs to the technical field of isotope geochronology. The problems that the sampling method is unscientific, the dating samples are blindly selected, the success rate of dating is low, the sample digestion is incomplete and takes a long time, and the impurity interference caused by a dissolution scheme causes the poor accuracy and precision of the limestone Re-Os isotope age results. The method comprises the following steps: collecting a limestone sample and crushing the sample; selecting a limestone dating sample deposited in a reducing environment; pre-digesting the limestone dating sample, and dissolving a pre-digesting solution of the limestone dating sample with a mixed solution of hydrochloric acid and hydrogen peroxide; separating and purifying a dissolution solution Re-Os of the limestone dating sample; performing the Re-Os isotope thermal ionization mass spectrometry; processing the Re-Os isotope data to obtain the final limestone Re-Os isotopic age. The analysis method provided by the invention has the advantages of improving the success rate, accuracy, precision and the operation efficiency of the experimental process of the limestone Re-Os isotope dating.

The invention relates to integrated rural domestic sewage treatment equipment and a sewage treatment method, the integrated rural domestic sewage treatment equipment comprises a domestic sewage treatment integrated tank body, and the domestic sewage treatment integrated tank body comprises in turn an anoxic tank a first aerobic tank, a second aerobic tank, a chemical phosphorus removal sedimentation tank, a sand filtration tank and an equipment room; 1), the chemical phosphorus removal sedimentation tank is arranged between the equipment room and the sand filtration tank; 2) a compound fillercomprising 30%-40% of polyurethane and 60%-70% of a carbon fiber filler is arranged in the anoxic tank; 3) the first aerobic tank and the second aerobic tank are respectively provided with a compoundfiller comprising 60-64% of porous gel and 36-40% of a carbon fiber filler according to the filling rats of greater than 28% and less than 35%; and 4) the chemical phosphorus removal sedimentation tank comprises a flocculation reaction area and an inclined pipe sedimentation area, aerobic tank effluent is fully mixed with an iron salt phosphorus removal agent in a reaction zone, and is precipitated through the inclined pipe sedimentation area, supernate is discharged from an upper part overflow weir, and sludge is precipitated at the bottom of the sludge sedimentation tank, and is regularly pumped into a sludge tank.

The invention discloses a suspension toilet cleaning ball. The suspension toilet cleaning ball comprises a ball body, wherein water inlet holes are distributed in the surface of the ball body; an accommodating basket for accommodating a toilet cleaning agent is arranged in the ball body; an air chamber for keeping the ball body in a suspended state is further formed in the ball body. The suspension toilet cleaning ball is simple in structure, and is convenient to use; a toilet cleaning block is placed into the toilet cleaning ball, and suspends in a water tank; a part of the toilet cleaning block in the ball body is submerged into water, the sol dissolving speed is low, and the service life is long.