Lifting-placing type pipe column inner control tool

The invention provides a lifting-placing type pipe column inner control tool. The lifting-placing type pipe column inner control tool comprises a first connector provided with a first channel, a second connector connected into the first connector in a sealed and sleeved mode and provided with a second channel, a gear installed in the second connector and meshed with a rack and a control ball valve, wherein the rack is arranged on the first connector, the first connector slides relative to the second connector in an operable mode, and the control ball valve comprises a valve rod connected with the gear and a valve core connected with the valve rod and located in the second channel. The first connector axially slides relative to the second connector, drives the gear to rotate and accordingly drives the valve core to rotate to control opening and closing of the first channel and the second channel. When the first connector vertically slides relative to the second connector, drives the gear ...

Packing box

The invention provides a packing box. The packing box comprises an upper fixed seal part, a lower connector and a retractable sleeve, the upper fixed seal part is fixed to a polished rod and comprises a seal packing box, seal packing and a pressing cap, wherein the polished rod can be sleeved with the seal packing box, the seal packing is arranged in the seal packing box, and the pressing cap can be used for pressing the seal packing into the seal packing box so that the seal packing and the polished rod can be fixedly sealed. The lower connector is used for being connected with a Christmas tree. The retractable sleeve can retract and stretch between the upper fixed seal part and the lower connector so that the distance between the upper fixed seal part and the lower connector can be changed. The first end of the retractable sleeve is connected with the seal packing box in a sealed mode, and the second end of the retractable sleeve is connected with the lower connector in a sealed mode.

Recipe for medicine in health sanitary napkin

The recipe for medicine in health sanitary napkin includes borneol, lavender oil, clove oil, glycerin, Metronidazole, stilbestrol, resin, deodorizing absolute alcohol, Tween-80 and distilled water. The present invention can improve the decrease in vulva fat, decrease secretion of vagina and make vaginal mucous membrane epidermis become thin.

Technology for preparing low-heat cement by dry desulfurizing fly ash

The invention discloses technology for preparing low heat cement through dry-method desulphurization of pulverized coal. The method for preparing the low heat cement from the pulverized coal comprises the following steps that: 42 to 81 percent of modified pulverized coal, 15 to 50 percent of cement clinker with strength of between 50 and 65 MPa, 3 to 8 percent of an alkali excitant, 0 to 20 percent of blast-furnace slag and 1 to 5 percent of gypsum are selected, are mixed and grinded to a sieve of 0.045 mm; and residue on the sieve is less than 10 percent so as to prepare the low heat cement of the pulverized coal with strength grade of between 32.5 and 42.5 MPa.

Circulating fluidized bed boiler high efficiency desulfurization technology

Oilfield oil-water well string internal control tool

The invention provides an oilfield oil-water well string internal control tool which comprises a first joint, a second joint, a limiting part, a small gear and a control valve. The first joint is provided with circumferential teeth, the second joint is hermetically connected into the first joint in a sleeved mode, the limiting part is used for limiting axial movement of the first joint relative to the second joint and arranged between the second joint and the first joint, the small gear is arranged on the second joint and meshed with the circumferential teeth, and the control valve is arranged in the second joint and connected with the small gear through a connecting rod. When the first joint rotates around the central axis of the second joint relative to the second joint, the circumferential teeth drive the small gear to rotate, so that the control valve is driven to switch over an opening position and a closing position, for example, the control valve rotates forwards and is opened, or ...

Technology for preparing low-heat cement by dry desulfurizing fly ash

The invention discloses technology for preparing low heat cement through dry-method desulphurization of pulverized coal. The method for preparing the low heat cement from the pulverized coal comprises the following steps that: 42 to 81 percent of modified pulverized coal, 15 to 50 percent of cement clinker with strength of between 50 and 65 MPa, 3 to 8 percent of an alkali excitant, 0 to 20 percent of blast-furnace slag and 1 to 5 percent of gypsum are selected, are mixed and grinded to a sieve of 0.045 mm; and residue on the sieve is less than 10 percent so as to prepare the low heat cement of the pulverized coal with strength grade of between 32.5 and 42.5 MPa.

One-step desulfurization of breeze furnace and method for producing low heat cement with modified coal slag thereof

The invention discloses a one-step desulfurizer which is applicable to a pulverized coal boiler and an application method thereof, as well as a method for producing low heat cement by using later produced fly ash and residues . The preparing method of the desulfurizer provided by the invention is to mix and grind following components by mass percentage: 70 to 95 percent of quick lime, 1 to10 percent of fluorite, 1 to 10 percent of nic slag, 1 to 10 percent of Si-Mn iron slag, and 1 to 10 percent of titanium slag until 0.045mm sieve residue is less than 10 percent; better effect can be obtained if the content of each component corresponds with the disclosed standard in the specification; in the method for preparing the cement by modified fly ash of the invention, CaO and other components are taken according to mass percentage and ground into fine powers to prepare alkali-activator; then, 42 to 82 percent of the modified fly ash, 15 to 50 percent of cement clinker, 1 to 8 percent of alkali-activator ...

Fishing tool in short top of fish

The utility model discloses a fishing tool in short top of fish, it includes: tubular column main part, elasticity bailer grab, extension fixture, the extension fixture includes that cone and pusher construct, the one end of cone is connected with the lower extreme of main part, and the excircle of the other end is provided with outer circular conical surface, and elasticity bailer grab suit is in in the cone, be provided with the cavity between pusher structure and the main part, be provided with the water conservancy diversion hole between the middle through -hole of cavity and main part, below in the water conservancy diversion hole, be provided with in the middle through -hole of main part or the through -hole of cone and be used for the sealed ball seat of batting, bat and seal the back, the interior liquid warp of through -hole in the middle of the main part the cavity is gone into to the water conservancy diversion orifice flow, and under fluid pressure, the pusher constructs the ...

Special squeeze method bridging plug

The utility model discloses a special squeeze method bridging plug, it includes the body, the top -down cover is equipped with anchoring mechanism and packing element sealing mechanism on the body, in packing element sealing mechanism below, be provided with the cement export on the body lateral wall, in cement export top, be provided with sealed piston mechanism in the middle through -hole of body. The utility model discloses simple structure, convenient to use can not cause the dead phenomenon of body card moreover, has improved work efficiency greatly, has reduced manufacturing cost.

Technique for desulfurization in high efficiency for circulating fluidized bed boiler, and for preparing low-heat cement from fly ash

The invention provides a technology of preparing low heat cement which uses the highly effective desulphurization and the pulverized coal ash of the circulation fluid bed boiler, the sweetening agent is composed of the following component of percent weight: the quick-lime is 70-95%, fluorspar 1-10%, zinc dregs 1-10%, silicon manganese iron slag 1-10%, titanium dregs 1-10%, when using the sweetening agent,it maintains the calcium sulfur ratio of sweetening agent calcareous quantity and the coal-burning sulphur content is 2.5-10.5:1; the invention includes the following step: takes the various components 42-81% of modified pulverized fly ash, 15-50% of cement clinker with the intensity is the 50-65MPa, 3-8% of the alkalinity excitant, 0-20% of the blast furnace slag, 1-5% of the gypsum, mixes and rubs to 0.045mm sieves and the triage which is smaller than 10%, prepares the coal ash low heat cement whose intensity rank is 32.5- 42.5MPa.

Filter tip delay color changing core and preparation method thereof

A discoloration-delaying cable of a filter tip to change color relates to the production technology of cigarette, in particular to a discoloration cable in the filter tip of the cigarette. The invention consists of the cable and a discoloration-delaying reagent; the cable is the existing natural spinning fiber or chemical fiber material; the discoloration-delaying reagent relates to a pH indicator; the discoloration-delaying reagent is uniformly absorbed on the cable by coating or coloring, thus obtaining the discoloration-delaying cable of a filter tip. The discoloration-delaying cable of a filter tip is convenient and practical; the technique is simple; the effect is remarkable; besides, the discoloration-delaying cable of a filter tip can directly realize industrialization production.

Method for preparing filter material of cigarette

The invention relates to a method for preparing a cigarette filtering material and belongs to the technical field of the cigarette auxiliary material. The method uses rush as the raw material and forms cigarette absorbing granules by the techniques of carrying treatment, drying, granulating, etc. The preparation method comprises the steps as follows: a. materials are selected: the rush with the color between cream yellow and yellow is selected; b. the rush is cut primarily with the length less than or equal to 1cm; c. a carrying agent is dissolved in water and added to the rush; d. the material is stirred uniformly and stored for 1 to 12 hours under normal temperature and normal pressure; e. the rush obtained in step d is dried until the moisture is less than or equal to 8 percent; f. thedried rush is granulated, and 95 percent of the granules are less than 10 meshes; g. the carrying agent is dissolved in the water and added to the rush granules which are obtained in step f and are less ...

Ball fishing tool

The invention provides a ball fishing tool. The ball fishing tool comprises a sleeve hollow inside, a movable piston and a sucker, wherein the movable piston is inserted in a first end of the sleeve and can move in the sleeve, and the sucker is inserted in the second end of the sleeve and provided with an adsorbing cavity with an opening facing the second end of the sleeve. An energy storage cavity is formed by the sleeve, the movable piston and the sucker, and a through hole used for communicating the energy storage cavity and the adsorbing cavity is formed in the sucker. The ball fishing tool is simple in structure, and balls after multi-layer pressing split fracture of a horizontal well can be fished out conveniently.

Method for preparing filter material of cigarette

The invention relates to a method for preparing a cigarette filtering material and belongs to the technical field of the cigarette auxiliary material. The method uses rush as the raw material and forms cigarette absorbing granules by the techniques of carrying treatment, drying, granulating, etc. The preparation method comprises the steps as follows: a. materials are selected: the rush with the color between cream yellow and yellow is selected; b. the rush is cut primarily with the length less than or equal to 1cm; c. a carrying agent is dissolved in water and added to the rush; d. the material is stirred uniformly and stored for 1 to 12 hours under normal temperature and normal pressure; e. the rush obtained in step d is dried until the moisture is less than or equal to 8 percent; f. the dried rush is granulated, and 95 percent of the granules are less than 10 meshes; g. the carrying agent is dissolved in the water and added to the rush granules which are obtained in step f and are less ...