53results about How to "Promote resource recycling" patented technology

The invention relates to a device for mechanically cleaning manure of a leaky pigsty. The device comprises the pigsty and is characterized in that: the bottom of the pigsty is provided with at least one manure leaking plate; at least one manure trough is arranged below the manure leaking plate; the bottom of the manure trough is provided with at least one inclined plane; the lower side of the manure trough is provided with a drainage ditch; scrapers used for cleaning the manure and driven to reciprocate by a motor driving mechanism are arranged in the manure trough; and the motor driving mechanism comprises a motor, steel ropes connected with the scrapers and driven by the motor, and guide wheels for guiding the ropes. Meanwhile, the invention also relates to a pigsty structure and a corresponding method for mechanically cleaning manure of a leaky pigsty. By the invention, the manure sewage discharging amount can be reduced, the total amount of organic pollutants can be decreased, and the invention has the advantages that: the cost is low, the operation is simple and convenient, the manure cleaning efficiency is high, the discharge reduction effect is good, the pig manure which is mechanically cleaned and collected has low water content and is easily subjected to subsequent concentrated composting reutilization and the like.

The invention discloses a method for separating and concentrating acid in contaminated acid. According to the invention, acid in contaminated acid can be separated and further concentrated by selecting proper anionic and cationic ionic membranes and utilizing the electrodialysis integration technology; the separated and concentrated acid is above 8% in concentration and can be recycled; the acidity of the contaminated acid solution in which acid is separated is reduced till the pH is above 3.0; heavy metal ion cannot pass through a selective membrane and is reserved in the contaminated acid solution in which acid is separated; further subsequent treatment is conveniently carried out.

The invention discloses a vibrating screen classifier for kitchen waste. The vibrating screen classifier comprises a frame which is provided with a tooth rake device and a grid device, wherein the tooth rake device comprises multiple parallel tooth rake shafts which are fixedly connected between two transmission chains, and each tooth rake shaft is provided with rake teeth; the grid device comprises multiple grids which are arranged on the tooth rake shafts and staggered with the rake teeth and are parallel to the transmission chains; one end of each grid is a free end, and the other end of each grid is fixedly connected with a connecting sleeve; the connecting sleeve is sleeved on an eccentric sleeve; the eccentric sleeve is mounted on a second driven shaft; the second driven shaft is connected with the output end of a motor reducer through chain transmission; an screen overflow outlet is arranged below the free end of each grid; and an organism outlet is arranged below each grid. According to the invention, the organism in the kitchen waste is completely screened and classified by a mechanical processing method and is used as a raw material for a post-processing device.

The present invention belongs to the field of refractory material field, and is especially one kind of composite corundum-mullite material. The composite corundum-mullite material is prepared with coal gangue in 5-25 wt% and bauxite in 75-95 wt%, with the bauxite containing Al2O3 over 75 wt%. The preparation process of the composite corundum-mullite material includes the following steps: ball milling the material in absolute ethyl alcohol as medium for 6 hr, maintaining in stoving for 12hr, pressing to form, and maintaining at 1350-1450deg.c for 3-6 hr in air atmosphere to synthesize. Test shows that the composite corundum-mullite material has high purity. Preparing composite corundum-mullite material with coal gangue and bauxite as main material has rich and cheap material source, so that the present invention provides one new way of preparing high temperature refractory material.

The invention provides low-solubility salt paper pulp and a preparation method thereof. The low-solubility salt paper pulp is characterized in that the paper pulp is harmless to vegetation; harmlessness is as follows: cultivated wheat seedling test is carried out on the basis of wet paper pulp free of pulp washing treatment and the harm of impurities in the paper pulp to wheat seedlings cannot be seen at least within a growth period from germination of wheat grains to over 5cm of seedlings; or the gram molar concentration of at least Na<+> or/and K<+> or/and Mg<2+> contained in the wet pulp is smaller than or equal to 0.034mol/L, namely the total concentration of at least soluble sodium salt, potassium salt and magnesium salt contained in a solution in the wet pulp is smaller than or equal to an upper limit value of intolerance 0.20% (wt%) of rice and wheat growth; or the wet paper pulp is only dried to absolute dryness of which the moisture content is not greater than 15%, and the weight of the Na<+> or/and K<+> or/and Mg<2+> contained in 1,000g of absolute dry paper pulp is smaller than or equal to 1.6g; the paper pulp is an offline chemical foaming production line; or the paper pulp is screened and classified paper pulp or unscreened or unclassified paper pulp of which the pulp degree value is within a range from 10 degrees SR and 90 degrees SR and the superimposed screening indicator is within a range from a 10mesh screen to a 200mesh screen hole.

The invention relates to a method for recycling waste tires, which specifically comprises the following steps: cutting and crushing waste tire rubber, separating and screening impurities such as steel wire and fiber components in waste tire rubber particles, and then separating and screening the obtained waste tire particles Washing, soaking and drying are carried out, and the dried waste tire particles are sent to a fine crusher for further grinding to obtain finished rubber powder. Finally, the rubber powder obtained above is used according to the waste tire rubber powder: butyl rubber: sulfur: vulcanizing agent DTDM: accelerator DM: zinc oxide: stearic acid: carbon black: paraffin oil: processing aid H501: tackifier TKO‑ 90: The quality of anti-aging agent is 50:20:0.7:0.45:0.4:3.0:0.6:30:13.5:1.6:2.2:0.35 for film production. The film prepared by using the above formula has good mechanical properties, durability Abrasion resistance, corrosion resistance and oil resistance, etc., can be applied to the production of various wheel inner tubes.

The invention discloses a resource recovery method of lithium iron phosphate waste materials. The method concretely comprises the following steps of 1, roasting; 2, phosphoric acid solution preparation; 3, hydrothermal reaction; 4, filtering; 5, evaporation and concentration; 6, cooling and crystallization; 7, drying, and a LiH2PO4 product is obtained. The method provided by the invention has the advantages that the introduction problems of other acid, alkali and salts (H2SO4, HCl, NaOH, Na2CO3 and the like) in a conventional wet process recovery process are avoided, so that the purification of a reaction system is ensured; the P, Fe and Li resources in the waste materials can be sufficiently utilized; through conversion and synthesis between substances, the high-added-value iron phosphate and lithium dihydrogen phosphate products are prepared; no Fe waste slag is generated; all elements are efficiently utilized; the technical flow process is short; the reaction system is simple; the reagent consumption is low; the process is simple; the cost is low; the resource recovery utilization is high; the method is very suitable for industrial scaled production.

The invention discloses a method for recycling alkali waste liquid generated during the production of chitin and relates to the technical field of treatment and comprehensive use of wastewater generated during food processing. The method comprises the following steps: alkali waste liquid generated in a deproteinization process during the production of chitin is used as a raw material and subjected to stainless steel membrane filtration and nanofiltration to obtain clean alkali liquid to be reused; and concentrated solutions obtained after the stainless steel membrane filtration and nanofiltration are mixed, neutralized and subjected to spray drying and roller drying to obtain high-protein feed additives. Compared with the prior method for treating waste liquid, the method realizes recycling of alkali liquid, comprehensive use of active ingredients, and prevention of discharge of alkali liquid into environment, adopts a separation and purification process which is simple, reasonable, short in process, convenient in operation, high in yield and quality of alkali, and combines a stainless steel membrane filtration separation system and a nanofiltration separation system which have advantages of low operation cost, high filtration precision, high concentration factor, high concentration of the concentrated solutions and so on, contributes to production of high-protein feed additives through solidification of concentrated solutions and avoids secondary pollution.

The invention relates to a low temperature cracking furnace. The low temperature cracking furnace comprises a horizontal furnace body, a furnace tube is installed in the horizontal furnace body, the furnace tube has a cracking chamber, the first end of the horizontal furnace body is provided with a charging mechanism, the second end of the horizontal furnace body is provided with a discharging mechanism, the horizontal furnace body is provided with a feeding section, a low temperature cracking section communicated with the feeding section, a cooling section communicated with the low temperature cracking section and a discharging section communicated with the cooling section, the charging mechanism is communicated with the feeding section, the discharging mechanism is communicated with thedischarging section, a heating mechanism is arranged below the low temperature cracking section and is used for heating the furnace tube so that a waste circuit board in the cracking chamber undergoesa cracking reaction, and the low temperature cracking furnace also comprises a transmission mechanism passing through the horizontal furnace body and used for conveying the waste circuit board, a sealing mechanism used for sealing an input end and an output end of the transmission mechanism, and an electric control mechanism respectively electrically connected to the heating mechanism and the transmission mechanism. The low temperature cracking furnace has the advantages of high degree of automation, good sealing performance, continuity, high efficiency and low carbon.

The invention discloses a separation and recycling method for partition plates in waste lead-acid storage batteries. The method comprises the following steps of separating the partition plates, loosening and disassembling the partition plates, conducting carbonization treatment, acidifying and dissolving, performing recycling, and recovering waste lead, so that glass fibers and waste lead impurities bonded with the surfaces of the glass fibers are effectively separated from each other, and resource recycling of the waste partition plates is promoted. According to the method, high additional energy consumption caused by the fact that the partition plates participate in smelting of regenerated lead is avoided, slag discharge is greatly reduced, the pollution control cost is reduced, the economic benefits of the regeneration industry are increased, and improvement of an energy conservation and emission reduction process is greatly promoted.

The invention discloses a sewage treatment method and a sewage treatment system. The treatment method comprises the following steps: adding an oxidant, a ferrous salt and an alkaline neutralizer to acidic sewage, carrying out a reaction, filtering the obtained sewage, adding sodium sulfide to the obtained filtrate, carrying out a reaction, carrying out press filtration, adding lime milk to the obtained filtrate, carrying out a reaction, and carrying out air floatation separation and post-treatment. The treatment system comprises an oxidation and neutralization reaction tank, a filter, a sulfuration reaction tank, a first filter press, a neutralization reaction tank and an air flotation device which are sequentially connected, and the first outlet of the air floatation device communicates with the oxidation and neutralization reaction tank. The treatment method and the treatment system have the advantages of high-efficiency treatment of acidic sewage with high content of heavy metals, respective enrichment of arsenic and other heavy metals, recycling and harmless utilization of hazardous waste residues, high recovery value and no secondary pollution.

The invention relates to a kitchen garbage treatment device and a garbage treatment system. The kitchen garbage treatment device comprises a treatment body, a discharge part, a smashing assembly and a rotary inner barrel, wherein the treatment body is provided with a first inlet, a first outlet and a treatment cavity, the first inlet and the first outlet both communicate with the treatment cavity, the first inlet and the first outlet are oppositely arranged, the discharge part is arranged on the treatment body in an openable and closable manner, when the discharge part is closed, the first outlet is covered, the smashing assembly comprises a driving part and blades, and the blades are in driving connection with the driving part. According to the kitchen garbage treatment device, through rotation of the smashing assembly and the rotary inner barrel, the smashing effect on kitchen garbage is effectively improved, and kitchen waste particles and liquid are separated and discharged separately; and meanwhile, due to the action of an air extractor, the air flow achieves the back flushing effect on the rotary inner barrel, the rotary inner barrel is effectively cleaned, the filtering efficiency of the rotary inner barrel is improved, the cleaning frequency is reduced, and then the treatment efficiency of the kitchen garbage is improved.

The invention discloses a vegetable seedling substrate and a preparation method thereof. The preparation method of the vegetable seedling substrate comprises the following steps of firstly, conductingmixed substrate fermentation treatment on a mixed substrate; then adding fermentation treatment rice washing water into a fermented mixed material; and conducting drying treatment to obtain the vegetable seedling substrate, wherein the mixed substrate is prepared from vermiculite, peat and cow dung compost. The prepared vegetable seedling substrate is high in nutrient substance content and good in air permeability and water permeability, and the purposes of increasing the emergence rate of vegetables and promoting seedling growth are achieved under the condition that the peat is reduced.

The invention belongs to the technical field of environment treatment, and discloses a waste fly ash treatment agent, and a preparation method and an application thereof. The waste fly ash treatment agent has a plurality of heavy metal binding sties and a long hydrophobic chain, can realize long-acting and high-efficiency stability of heavy metals, and forms a hydrophobic coating on the surface of ash to prevent the re-dissolving of the stable metals and reduce the surface energy of treated waste fly ash, so the compatibility with asphalt and cement is increased, and harmless treatment and recycling of the waste fly ash are convenient.

The invention relates to a high-softening-point asphalt preparation method suitable for asphalt-based spherical activated carbon raw materials, special asphalt with the softening point of 130-220 DEGC is used as a raw material, a synergistic effect of negative pressure extraction and thermal polymerization reaction is utilized, a double-screw extruder with a certain number of vacuumizing ports isadopted, and the molecular weight distribution, softening point, group composition and other physical and chemical properties of high-softening point coal asphalt can be adjusted by adjusting the temperature and the extrusion speed of each temperature zone of the double-screw extruder, the number, the setting positions and the vacuum degrees of the vacuumizing ports. The softening point of the prepared high softening point asphalt is 240-280 DEG C, the content of n-heptane soluble substances is lower than 10%, the content of toluene soluble substances is lower than 30%, the content of quinoline insoluble substances is higher than 35%, the content of pyridine insoluble substances is higher than 20%, and the ash content is 0.02-8%. The high-softening-point asphalt preparation method has important significance for promotion of resource reutilization of the special asphalt and the asphalt-based spherical activated carbon and related materials (such as asphalt-based foam carbon).

The invention provides a method for extracting cellulose composite enzyme from agricultural by-products, which specifically includes pre-processing edible fungus chaff, and using Bacillus subtilis solid-state fermentation to produce cellulose composite enzyme powder. The invention has extensive raw materials, low cost, simple method and operation, effectively utilizes low-molecular-weight nutrients in agricultural by-products to produce industrial enzymes, turns waste into treasure, and has strong vitality of Bacillus subtilis, avoiding the problem of miscellaneous bacteria infection in the traditional industrial enzyme preparation process. , has a strong promotion value.

The invention discloses a conveying belt type source separation pedestal pan which comprises a supporting frame, a pedestal pan body, a conveying belt assembly, an ash storage box, a manure box, a urine storage barrel and a pedal mechanism. A partition plate is arranged in the pedestal pan to divide the pedestal pan into a urinal and an excrement pool, the conveying belt assembly comprises a conveying belt and rollers, the rollers are used for driving the conveying belt to rotate, the ash storage box and the excrement box are located at the two ends of the conveying belt respectively, the ashstorage box is located above the conveying belt, an ash discharging opening is formed in the bottom of the ash storage box, and the distance between the ash discharging opening and the conveying beltis 1-3 cm. The blocking door is located below the pedestal pan, can rotate so as to be opened and closed, and is used for blocking gas flow between the closestool and the excrement box when being closed. When the toilet stool is in a use state, the blocking door blocks the contact between the excrement box and a user, the upward escape of odor is inhibited, meanwhile, ash materials such as wood chips and plant ash further adsorb the odor of excrement, no mosquitoes and flies breed, and the toilet stool is clean and sanitary.