Staple bolt ironware forming die acts as go -between

The utility model relates to the technical field of mold, a staple bolt ironware forming die acts as go -between is disclosed, mould and shaping lower mould in the shaping that corresponds each other, the lower extreme of mould be equipped with and the act as go -between appearance assorted shaping groove of staple bolt ironware in the shaping, the upper end of shaping lower mould is equipped with the one -tenth die cavity that corresponds with the shaping groove, the both sides of shaping lower mould all are equipped with the location baffle, the mould includes cope match -plate pattern and detachable the installation in the epipleural of cope match -plate pattern both sides in the shaping, the lower extreme of cope match -plate pattern is located in the shaping groove, the shaping lower mould includes lower bolster and detachable the installation in the lower side panel of lower bolster both sides, the upper end of lower bolster is located to the format roll. The utility model discloses ...

污水处理的节能增氧装置

... 本发明涉及一种污水处理的节能增氧装置，包括污水池，在污水池中的水面上方通过支撑杆设置底面上设有多个淋水孔的淋水池；淋水池下方的水面上通过支撑杆设置定向泻水槽，定向泻水槽的上开口高于水面，定向泻水槽呈漏斗状或在定向泻水槽的底面上设置泻水管，定向泻水槽将来自淋水池的水导入水下；淋水池与定向泻水槽之间设置有向自淋水池下泻的水中鼓风增氧的风扇。该增氧装置增氧效率高，能耗低，实现完全从下向上、由远及近增氧，同时又具有最大水量流动的全新概念的污水处理的节能增氧装置。 ...

铬渣的无害化和资源化处理方法及其应用

The invention provides a Cr-residue harmless and resource-conversion processing method as well as its application, mixing the Cr residue with the three-valued Al and C containing matter to bake for 24-36 hours at 900-1200 deg.C. Its resultant can directly be used as building material or used in other aspects. The three-valued Al containing matter is coal gangue; the weight of the Cr residue is not greater than 6% of that of the coal gangue, where the optimal weight percent is 4-6%. It can convert six-valued Cr in the Cr residue into stable three-valued Cr, which will not be reoxidized into six-valued Cr.

Recycling processing method for preparing rubber ingredient from caustic sludge

The invention provides a recycling processing technique for caustic sludge. The method is realized in a way that: the caustic sludge is converted into rubber plastic accessory ingredient powder with higher added value through wet grinding, dehydrolyzing, drying, screening and the like, thereby achieving the goal of recycling the caustic sludge. The caustic sludge powder suitable for the method mainly comprises calcium carbonate (about 50%), calcium sulfate, calcium chloride, sodium chloride, silicon oxide, aluminum oxide and the like. The particle size of the processed caustic sludge powder is smaller than 10 micrometers. The invention also relates to applications of the product obtained by processing the caustic sludge with the technique. The processed caustic sludge powder can be directly used for rubber engineering. The processability, rubber quality and rubber aging property of the caustic sludge powder are similar to those of the light calcium carbonate accessory ingredient. The method ...

Resource recovery method of residue from water injection in oil field and application

The invention relates to a resource recovery technology of residue from water injection in an oil field, and the method comprises the steps of blending slurry of the residue from the water injection; pre-crushing and leading part of oil pollution to float; carrying out suspension separation; screening by a sieve with 250-300 meshes; carrying out first-stage grinding; carrying out second-stage grinding; separating and dehydrating; scattering and drying; and carrying out gas stream-screen classification, powder baking, bag filling and other processes, thereby preparing the residue from the water injection to filling agent powder. The residue which is applicable to the method from the water injection comprises the following main components: 60%-70% of calcium carbonate, 10%-15% of sial rock and 2%-30% of residual petroleum. The particle size D of powder particles after processing is not more than 20 mu m; and the petroleum content is 2%-5%. The invention further relates to use of a product ...

Welding tool of manhole cover

The utility model relates to a welding equipment technical field discloses a welding tool of manhole cover, including the slide bar, the sliding sleeve on the slide bar is located to the cover for the mount on the sliding sleeve is transversely installed along the cylinder that the slide bar removed to the drive sliding sleeve, and installs the anchor clamps that are used for centre gripping welder in mount both ends. The utility model discloses a cylinder drive mount removes, and then drives the welder removal at mount both ends to it circles to realize that two welder weld the bounding wall in the seat, very big improvement welding efficiency and welding security.

黑液煤浆燃烧灰渣的无害化和资源化处理方法

A method for reclaiming the ash dregs generated by burning the black liquid and coal sludge includes such steps as proportionally mixing said ash dregs with clay or coal gangue, die pressing, and calcining to become building material.

S-Fe/clay repairing agent as well as preparation method and application thereof

The invention relates to an S-Fe/clay repairing agent and a preparation method and application thereof, and belongs to the technical field of environmental protection. The preparation method comprises the following steps: firstly, adding deionized water into a container, then adding Na2S solid and clay, uniformly stirring and mixing, then dropwise adding a FeSO4 solution to generate a black precipitate, aging in a water bath, cleaning, finally freeze-drying, and grinding to obtain the S-Fe/clay repairing agent. On the basis that the clay has a large specific surface area and good adsorption capacity, FeS is successfully loaded through precipitation, and the restoration capacity of the clay to hexavalent chromium is greatly improved. The action mechanism of the repairing agent on Cr (VI) comprises an adsorption action and a reduction action.

Improved generation hawse -pipe structure

The utility model relates to a boats and ships technical field discloses an improved generation hawse -pipe structure, including the fixed plate of two relative settings, the pivot of fixed mounting between two fixed plates, install in changeing epaxial cylinder to and install in the wear -resisting baffle at cylinder both ends, just wear -resisting baffle is inconsistent with the fixed plate. The utility model discloses a cylinder is installed in changeing epaxial structure, when receiving and releasing the anchor, turns into the turning effort of cylinder with the frictional force between anchor chain and the cylinder, has avoided leading to the fact wearing and tearing because frictional force is great, reduced the noise when receiving and releasing the anchor simultaneously, and wear -resisting baffle can avoid the anchor chain to lead to the fact wearing and tearing to the fixed plate of both sides, has lengthened its life effectively.

Forming die of fairlead

The utility model relates to the technical field of mold, a forming die of fairlead is disclosed, comprises an upper die and a lower die. Go up the mould and include the calligraphy or painting model body, install in the first compression roller and the second compression roller of last calligraphy or painting model body lower extreme, be located first compression roller both sides and install in the first briquetting of last calligraphy or painting model body lower extreme, be located second compression roller both sides and install in the second briquetting of last calligraphy or painting model body lower extreme, the lower mould includes the lower mould body, locates the first cavity and the second cavity of lower mould body upper end, is located first cavity both sides and locates the first indent on the calligraphy or painting model body, is located the second indent of just locating calligraphy or painting model body upper end in second cavity both sides. The utility model discloses ...

Melamine-modified magnetic chitosan, preparation method and application thereof

The invention provides melamine-modified magnetic chitosan, a preparation method and an application thereof. The method comprises the following steps: swelling chitosan by using a 2-percent acetic acid solution; reacting the swelled chitosan with epoxy chloropropane; introducing ferroferric oxide into a product; and reacting the product with melamine to obtain a target adsorbent. The adsorbent can be synthesized continuously without separating an intermediate product; a preparation process is simple; the adsorbent is mainly used for performing adsorbing treatment on waste water polluted by heavy metal ions, can be used for adsorbing and recovering single heavy metal ions, and can be used for adsorbing and treating waste water polluted by various heavy metal ions; and moreover, the adsorbent has the advantages of low cost, good adsorbing effect, easiness in separation, reusability and the like, and is a potential heavy metal waste water treatment agent.

Cement electric pole examines and repair a frame foundation forming die

The utility model relates to the technical field of mold, a cement electric pole examines and repair a frame foundation forming die is disclosed, mould and shaping lower mould in the shaping that corresponds each other, the lower extreme of mould is equipped with and examines and repair the appearance assorted shaping groove of a frame foundation in the shaping, the upper end of shaping lower mould is equipped with the format roll that corresponds with the shaping groove, the both sides and the rear end of shaping lower mould all are equipped with the location baffle. The utility model discloses when the contour machining, put into a steel sheet in the shaping can to go out to examine and repair a frame foundation by one shot forming between mould and the shaping lower mould, and maintenance support part can directly be taken out after good to the shaping, the advantage that has production efficiency height and low in production cost.

Method for harmless treating chromium slag into resource and use thereof

Preparation method of polyamine compound-modified magnetic chitosan and application thereof

The invention provides a preparation method of polyamine compound-modified magnetic chitosan and an application thereof. The preparation method comprises the following steps: firstly swelling chitosan with a 2% acetic acid solution, then connecting triethylene tetramine to the chitosan molecules by epoxy chloropropane, performing carboxymethylation of the above product by chloroacetic acid, and finally introducing magnetic ferroferric oxide into the triethylene tetramine-grafted chitosan molecules by using N,N'-dicyclohexyl carbimide with N,N-dimethyl formamide as a solvent, so as to obtain a target adsorbent. The adsorbent of the invention is mainly used for adsorption treatment of heavy metal ion-polluted waste water, not only can be used for adsorption recovery of single heavy metal ion, but also can be used for adsorption treatment of waste water polluted by a plurality of heavy metal ions, has the advantages of good adsorption effect, no secondary pollution, easy separation, recyclability ...

Ball formula chock for boats and ships

The utility model relates to a boats and ships technical field discloses a ball formula chock for boats and ships, including the bottom plate, follow bottom plate length direction and install in proper order in a plurality of U -shaped frames of floor surfaces, install the gyro wheel in every frame through the pivot, be equipped with the recess on every gyro wheel, the both sides of every U -shaped frame all are equipped with the fixed clamp splice that corresponds with the pivot. The utility model discloses install a plurality of U -shaped frames on the bottom plate, install independent gyro wheel in every U -shaped frame, can realize carrying on the function of independent direction to a plurality of cables, have simple structure, convenient to use's advantage.

Adjustable cable double embrace hoop forming die

The utility model relates to the technical field of mold, a adjustable cable double embrace hoop forming die is disclosed, go up mould and bending lower mould including bending, the last mould of bending includes the calligraphy or painting model body, and detachable locates the first format roll and the second format roll of calligraphy or painting model body lower extreme to and locate the internal adjusting device who is used for adjusting first format roll and second shaping roller distance of calligraphy or painting model, the bending lower mould includes the lower mould body, locates first one -tenth die cavity and second one -tenth die cavity on the lower mould body to and locate the 2nd adjusting device who is used for adjusting first one -tenth die cavity and second one -tenth die cavity interval in the lower mould body, just first one -tenth die cavity is corresponding with first format roll, it is corresponding with the second format roll that the second becomes the die cavity ...

Process of preparing rubber filler with oil-bearing sludge

The present invention relates to process of preparing rubber filler with oil-bearing sludge, and belongs to the field of environment protecting and solid waste resource utilizing technology. Oil-bearing sludge is produced into rubber filler through the technological process including wet or dry crushing, separating to eliminate 200 mesh over grains, wet grinding to reach powder granularity of D50not greater than 3.0 micron and D90 not greater than micron, dewatering the slurry to water content lower than 40 %, drying to water content lower than 0.4 %, and sieving to obtain powder smaller than 200 mesh as the rubber filler. The present invention can utilize oil-bearing sludge resource and is environment friendly.

Internal cleaning device for building steel pipe

The invention relates to a cleaning device, in particular to a building steel pipe interior cleaning device. According to the building steel pipe interior cleaning device, soil in a building steel pipe can be conveniently cleaned, and the automation degree is high. The building steel pipe interior cleaning device comprises a limiting plate, the top of a supporting plate is provided with the limiting plate, and a square hole is formed in the rear side of the middle of the outer side of the limiting plate; the first fixing frame is arranged on the front side wall of the supporting plate. A worker starts a rodless air cylinder to drive a fixing block and a brush to move backwards to clean the interior of the building steel pipe, and while the fixing block moves backwards, a pull rope is pulled backwards to drive a second rotating shaft to rotate through a winding wheel; and when the second rotating shaft rotates, the bevel gear drives the first rotating shaft to rotate the rodless cylinder ...

Energy-saving oxygenation system in sewage treatment

An energy-saving oxygen enriching system for sewage treatment is composed of sewage pool, water showering pool with holes on its bottom, which is above the water surface in sewage pool, the directional water flushing channel in the shape of hopper, which is under said water showering pool for introducing the water from water showering pool into sewage, and oxygen-enriching blower arranged betweensaid water showering pool and directional flushing hopper. Its advantages are high oxygen-enriching efficiency and low energy consumption.

Regenerated rubber and preparation method thereof

The invention discloses a regenerated rubber and a preparation method thereof. The preparation method comprises the following steps: thoroughly mixing 40-50 wt% of oilfield sludge, 30-48 wt% of mixed rubber powder, 18-21 wt% of clay, 0.2-0.4 wt% of triethylenetetramine, 0.1-0.3 wt% of ortho-benzamidodisulfide and 0.1-0.3 wt% of activator 420, and reacting at 200-250 DEG C under the pressure of 15-25 MPa in a reaction kettle for 40-80 minutes; and after the reaction finishes, expelling the gas in the reaction kettle, cooling and discharging to obtain the desulfurized regenerated rubber. According to the method, the oilfield sludge content is controlled below 50%; if the oilfield sludge content exceeds 50%, the ash content and density of the prepared regenerated rubber are overproof; and the method can be used for reasonably utilizing the oilfield sludge, so that the prepared regenerated rubber has excellent performance and huge economic value.

L-arginine modified magnetic chitosan, preparation method and application thereof

The invention provides an L-arginine modified magnetic chitosan, a preparation method and an application thereof. The preparation method comprises the following steps: swelling chitosan by using a 2% acetic acid solution, then reacting the swelled chitosan with epoxy chloropropane, then introducing ferroferric oxide into a product, and finally reacting the product with L-arginine to obtain a target adsorbent. The adsorbent can be synthesized continuously without separating an intermediate product; a preparation process is simple; the adsorbent is mainly used for performing adsorbing treatment on waste water polluted by heavy metal ions, can be used for adsorbing and recycling single heavy metal ions, and can be used for adsorbing and treating waste water polluted by various heavy metal ions; and moreover, the adsorbent has the advantages of low cost, good adsorbing effect, easiness in separation, reusability and the like, and is a potential heavy metal waste water treatment agent.

Self-expanding bio-based fireproof coating as well as preparation method and application thereof

The invention belongs to the technical field of fireproof coatings, and discloses a self-expanding bio-based fireproof coating as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing oyster shell powder, a sodium hypochlorite solution and water, and ball-milling to obtain a crude product; drying the centrifuged lower-layer precipitate to obtain the stripped lamellar oyster shell; carrying out ball milling on a mixed solution of phytic acid, ammonia water and water and the stripped lamellar oyster shells to obtain a ball-milled mixture; and centrifuging the ball-milled mixture, and carrying out rotary evaporation on the supernatant to obtain the self-expanding bio-based fireproof coating. In the preparation process, an organic solvent harmful to the environment is not used, the preparation of the fireproof coating is resource utilization of solid wastes, and the requirement of environmental protection is met. The prepared fireproof ...