79results about How to "Prevent spraying" patented technology

The invention discloses a steel structure painting device which comprises two conveying mechanisms arranged in parallel and a spraying mechanism erected over the two conveying mechanisms. The conveying mechanism comprises two slideways arranged in parallel, the top of each slideway is rotatably connected with a plurality of conveying rollers at equal intervals in the length direction of the slideway, two movable frames capable of reciprocating in the length direction of the beam frames are arranged between the upper ends and the lower ends of the two beam frames respectively, and each movable frame is fixedly provided with a spray gun set; the spray gun set is composed of a plurality of spray guns arranged side by side, spray heads of all the spray guns face the middle area of the top end between the two conveying mechanisms, a servo motor drives a transmission gear and a chain, synchronous reciprocating motion of the two movable frames is achieved, and the height of the U-shaped tray is adjusted in cooperation with an air cylinder. The spray gun group can move in a large range along the beam frame and dynamically adjust the spraying distance with the workpiece to cover the whole area of the surface of the steel structure, so that spraying leakage or excessive spraying is avoided, and the coating uniformity and the painting efficiency are remarkably improved.

The utility model provides a gluing gun nozzle for automobile production, which comprises a connecting pipe, one end of the connecting pipe is communicated with a glue supply pipeline, the other end of the connecting pipe and an inlet end of a gluing nozzle are communicated with a circular baffle, and the circular baffle is rotatably connected to the inner side of the connecting pipe and rotates in the radial direction; the control assembly is used for driving the circular baffle to rotate; and the limiting assembly is used for limiting movement of the driving assembly. The glue spraying device has the beneficial effects that the glue spraying work can be started only when the glue spraying nozzle is mounted on the connecting pipe in place, the problem of glue overflow caused by improper mounting in the mounting process of the glue spraying nozzle is prevented, and meanwhile, the problem that a switch of the glue spraying device is mistakenly touched in the mounting process of the glue spraying nozzle is avoided, so that the glue spraying work is not finished. And the problem that the glue is sprayed out when the gluing nozzle is not mounted completely is solved.

The invention provides novel injection type glycerine enema which comprises an injection assembly, and the injection assembly comprises an injection tube, a piston, a push rod, a push block, a nipple, a fixing ring, a sealing ring, a gradually-hardened tube, a cavity, an L-shaped plate, a clamping block, a flexible steel rope, a pull ring, a mounting block and a clamping groove. And a piston is connected to the inner wall of the injection tube in a sliding manner. The gradually-hard tube is inserted into a place where the injection tube is inserted, the push block is pushed to drive the push rod to move, the push rod drives the piston to slide on the injection tube, and liquid medicine is pushed in through the gradually-hard tube, outflow and injection caused by two-time extrusion of common glycerine enema are avoided through one-time injection of 20 ml, two-time mucosa damage is avoided, pollution caused by excrement back-pumping after extrusion is finished is avoided, and the injection efficiency is improved. The pull ring is pulled leftwards, the pull ring drives the clamping block to be separated from the clamping groove through the flexible steel rope, the sealing ring is moved to take down the gradually-hard tube, and the gradually-hard tube is disinfected and cleaned respectively, so that the comfort degree is improved, the rectal mucosa is not prone to being damaged, all liquid medicine can be pushed in in a pushing injection mode, and the liquid medicine is not left and wasted.

The application discloses a potato disease and pest treatment device and a use method thereof in the technical field of disease and pest treatment, which comprises a treatment total site and multiple disease and pest control points uniformly arranged in a potato planting area, and the treatment total site is connected with the multiple disease and pest control points through conveying pipelines; the disease and pest control point is provided with a base and a liquid storage tank fixed to the top of the base, and the top of the liquid storage tank is connected with a liquid conveying mechanism; the top of the base is provided with a lifting mechanism, the lifting mechanism is connected with a rotating driving mechanism, and the outer side of the rotating driving mechanism is uniformly connected with multiple rotating pesticide spraying mechanisms in the circumferential direction; the multiple disease and pest control points are uniformly arranged to realize wide coverage, and the linkage design of the lifting mechanism and the rotating pesticide spraying mechanism can realize layered 360-degree annular pesticide spraying on different heights of potato plants; after pesticide spraying, the rotating pesticide spraying mechanism can be folded back to the original position, the space occupation is reduced, and the uniformity of pesticide spraying and the control effect are effectively improved.

The present application provides a kind of diuron granule moisture drying device, it is related to drying device technical field, including drying frame body and quartz heating tube, quartz heating tube is arranged on the inner wall of drying frame body, bottom support is arranged below the inside of drying frame body, the central position of bottom support top is equipped with heat dissipation cylinder, the bottom support top of heat dissipation cylinder outside is rotatably equipped with inner spiral and outer spiral, the diameter of inner spiral is less than outer spiral, hollow ring is arranged on the bottom support between inner spiral and outer spiral, clearance is left between the lower end of hollow ring and bottom support, the inside of drying frame body is equipped with rotating shaft.The slow rotation of inner spiral and outer spiral can lift the material originally located at the bottom to the upper, and drop from the upper end of hollow ring to the bottom, so circulation, not only can realize the mixing of material horizontal direction, but also can realize the mixing of up and down position, avoid the material located at the bottom is always not lifted, cause the problem of the material temperature of bottom to be too high.

The application discloses a kind of dry treatment desulfurization wastewater system and process flow, high-temperature hot flue gas of boiler induced draft fan outlet is used, dust removal is entered into evaporator coil heat exchange to realize brine concentration, and cooperate with damper to realize temperature rise in evaporator and reach crystallization temperature requirement, by concentrated liquid direct injection high-temperature air duct to carry out vapor-solid separation, then into dryer to carry out gas-solid high-temperature cyclone separation.The application is more reasonable in arrangement, has lower maintenance cost, has wider applicability in finished product production, has higher economic benefit, especially avoids chloride crystalline salt pollution ash, so that ash and chloride crystalline salt can be collected and utilized separately.

The application discloses a special stirring device for dry-mixed mortar production and relates to the technical field of building construction. The special stirring device for dry-mixed mortar production comprises a support, a roller is fixedly connected to the outer wall of the support, a motor is fixedly connected to the outer side wall of the support, a friction wheel is fixedly connected to the output end of the motor, the outer wall of the friction wheel is in contact with a transmission wheel, and the outer wall of the transmission wheel is in contact with the roller. The special stirring device for dry-mixed mortar production is used for placing mortar in the interior of a roller for mixing, reversing the roller for discharging after mixing, and then conveying water through a water inlet pipe, so that water flows uniformly through water outlet holes to be sprayed into the interior of the roller, and the purpose of uniform cleaning is achieved.

The utility model belongs to the technical field of articles for daily use, and particularly relates to a detachable and washable cup cover and a water cup and a thermos bottle formed by the detachable and washable cup cover. Comprising a cover body and an inner plug assembly detachably arranged in the cover body, a sealing cover is arranged at the bottom of the cover body, and the inner plug assembly is detachably connected with the cover body and the sealing cover through elastic fasteners; a movable buckling part is convexly arranged on the outer side of the elastic fastener, a clamping groove matched with the movable buckling part is concavely formed in the cover body, and the movable buckling part is buckled in the clamping groove or loosened from the clamping groove; a spinning protrusion is arranged at the bottom of the elastic fastener, a spinning groove is formed in the position, corresponding to the spinning protrusion, of the upper end face of the sealing cover, and the spinning protrusion is rotationally clamped in the spinning groove or rotationally separated from the spinning groove; the cover body, the inner plug assembly and the sealing cover can be detached and separated through the elastic buckle assembly, the cover body, the inner plug assembly and the sealing cover can be detached and cleaned by hands without tools, the sanitation problem that a traditional kettle cover is integrated and cannot be detached, and consequently the kettle cover is difficult to clean is solved, and the sanitation hidden danger is greatly reduced from the source.

The present application relates to sewage treatment technical field, especially to pig farm manure treatment system, including treatment pool, partition, feeding tank, discharge pipe and so on, at least two partitions are arranged in the treatment pool, the feeding tank is installed in the treatment pool, the discharge pipe is connected in the treatment pool, one side of the discharge pipe is communicated with the feeding tank, the other side of the discharge pipe is located in the filtered water storage space, the present application can stir the manure and sewage by the cooperation of feeding tank, discharge pipe, sliding plate I, sliding plate II, bellows, treatment mechanism, sealing mechanism, stirring and heating mechanism and moving mechanism, and can heat the sewage, so as to accelerate the biogas fermentation of manure and sewage, and can also automatically add carbon source or nitrogen source in the sewage in the closed environment, so as to maintain the suitable carbon-nitrogen ratio in the sewage, improve the gas production efficiency of the sewage, which is not only simple in operation, time and labor saving, but also can prevent the leakage of biogas in the sewage storage space.

This invention belongs to the technical field of gas purification equipment, specifically relating to a molecular sieve adsorption tower for CO2 adsorption. The tower includes a tower body, within which, from the inside out, are arranged a central air channel, a molecular sieve layer, an alumina layer, and an outer air channel. A pressing mechanism is provided at the top of the tower body for pressing the molecular sieve layer and the alumina layer respectively. The pressing mechanism includes a drive plate that can move up and down along the top of the tower body. Below the drive plate is an inner pressing structure for pressing the molecular sieve layer, and outside the inner pressing structure is an outer pressing structure for pressing the alumina layer. As the drive plate descends, the inner and outer pressing structures simultaneously press the molecular sieve layer and the alumina layer respectively. This invention provides a molecular sieve adsorption tower for CO2 adsorption capable of separately pressing the sedimentation of the alumina layer and the molecular sieve layer.

The invention discloses a color-developable waterborne polyurethane dust suppressant and a preparation method thereof, and belongs to the technical field of dust suppressant preparation, the color-developable waterborne polyurethane dust suppressant comprises the following components by weight: 5-20 parts of waterborne polyurethane, 1-10 parts of latex powder, 0.5-5 parts of organic wax, 0.5-5 parts of color paste, 0.5-3 parts of paper pulp, 0.5-3 parts of a thickener, 0.1-0.5 part of an auxiliary agent, 5-10 parts of a film forming auxiliary agent, and 70-90 parts of water. According to the dust suppressant, waterborne polyurethane serves as a film forming substance and can be combined with coal particles to form a film layer of 1 mm-2 mm, a formed cured film is high in strength, good in toughness and high in adhesive force, pulverized coal particles can be effectively isolated, wind and rain erosion can be resisted, the dust suppression period is long, certain hydrophobicity is achieved, the dust suppressant is not prone to being washed away, the service life is greatly prolonged, and the dust suppressant is suitable for being popularized and used. And the dust suppressant takes water as a dispersion medium, the VOC content is extremely low, the selected coloring agent is environment-friendly, no pollution is caused to soil and underground water, and the development direction of green chemistry is met.

The invention relates to an intelligent spraying robot operation control method, device and equipment for a target part and a medium, and the method comprises the steps: extracting a mean value of current insect situation indexes of an insect situation density field of each pesticide application sub-region, so as to determine an insect pest grade of each pesticide application sub-region, and distributing a corresponding insect pest grade quantized value, converting the quantized value of the insect pest level into target pesticide application amounts through a linear mapping function, calculating a spatial centroid coordinate of each pesticide application sub-region, taking the spatial centroid coordinates as pesticide application operation points of the pesticide application sub-regions, and constructing a pesticide application region set containing a plurality of pesticide application operation points and the corresponding target pesticide application amounts in the target planting region; a K nearest neighbor algorithm is adopted to carry out space path optimization sorting on the pesticide application area set, an optimal operation sequence is generated, and spraying pesticide application is carried out on each pesticide application sub-area based on the optimal operation sequence until pesticide application operation of each pesticide application sub-area is completed. According to the application, the pest control effect can be remarkably improved, and the defect of one-step spraying is avoided.

This utility model relates to the field of automotive valve technology, and in particular to a fuel tank tipping valve diversion design mechanism, including a valve body, a connecting flange on the valve body, an air inlet on the upper end face of the valve body, an air inlet pipe on the connecting flange communicating with the air inlet, and a through hole on the valve body communicating with the fuel tank. The valve body includes a first valve chamber and a second valve chamber, which are connected by a connecting hole. A valve core assembly is slidably disposed in the second valve chamber. A connector is disposed in the first valve chamber, and a sealing element is slidably disposed below the connector in the first valve chamber. An exhaust channel is provided on the connector extending to one side from its center. The sealing element can open and close the exhaust channel. An exhaust groove is provided in the middle of the connector, and the exhaust groove communicates with the air inlet. An exhaust pipe is provided on the connecting flange communicating with the exhaust channel. The beneficial effects of this utility model are: providing an air inlet to realize the functions of fuel pump supply and air intake, and fuel tank refueling and exhaust, thus providing a fuel tank tipping valve diversion design mechanism.

The utility model relates to the technical field of automobile manufacturing discloses a kind of vehicle instrument panel crossbeam assembly production line, including bottom plate, the top end fixedly connected with conveyor belt of bottom plate, the top end fixedly connected with base of conveyor belt, the inside fixedly connected with two support plates of base, the bottom end of two the support plate is fixedly connected with motor one, the drive end fixedly connected with gear of motor one, the top end of two the support plate is fixedly connected with multiple support columns, the similar side of support column in front and back two sides is fixedly connected with round bar, the outside of round bar is fixedly connected with two sliders, the top end of two the slider is fixedly connected with clamping rod.In the utility model, start motor one, gear rotation drives rack horizontal movement, slider is tightened inwards along round bar, clamping rod is driven to clamp block clamp crossbeam rod in succession, prevent displacement when spraying, ensure that spray head sprays according to predetermined trajectory, coating is uniform, avoid to spray or thickness uneven.

The utility model discloses a temperature controller with circulating liquid recovery function. The temperature controller includes: refrigeration loop module, circulating loop module and recovery module, circulating loop module includes main water tank, recovery module includes recovery water tank, the exhaust line of main water tank is provided with first exhaust valve, the exhaust line of recovery water tank is provided with second exhaust valve, the exhaust line of main water tank is communicated with the exhaust line of recovery water tank, and one -way valve is arranged between the exhaust line of main water tank and the exhaust line of recovery water tank, so that the gas in the inside of main water tank is discharged in proper order through first exhaust valve and second exhaust valve under the condition that circulating liquid is backflowed to main water tank from outside, and the gas in the inside of recovery water tank is discharged through second exhaust valve under the condition that circulating liquid is backflowed and recovers to water tank from outside. The temperature controller overcomes the problems of large capacity, slow exhaust and circulating liquid overflow, can effectively save space and cost, and can satisfy customer customization demand.

The utility model belongs to the agricultural pesticide application technical field especially relates to a kind of potato ridge directional spray anti-drift cover, comprising: fixed block, clamping assembly is arranged on the fixed block, the fixed block is fixed on spray rod by the clamping assembly;Wind shield, the top of the wind shield is provided with insert block, the fixed block is provided with slot, the slot is compatible with the insert block, the slot is provided with clamping assembly, the insert block is limited with the fixed block by the clamping assembly;The inside bottom of the wind shield is provided with collecting groove, the collecting groove is communicated with a plurality of liquid collecting pieces, the liquid collecting piece is equidistantly arranged along the circumference of the wind shield.The utility model is equipped with the collecting groove and the liquid collecting piece of equidistantly distributed circumferentially in the inside bottom of wind shield, can efficiently recycle the dripping pesticide liquid in the process of spraying, avoid pesticide liquid waste.

The utility model discloses a kind of ceiling fastener, sound attenuation voltage regulator and sound attenuation shell, including sound attenuation spacer and heat insulation sleeve, there is deslagging gap between two, sound attenuation spacer is equipped with first deslagging hole, front plugging step, rear plugging step and multiple partition steps, step structure separates first, second deslagging passage and is connected by communicating passage, there is deslagging outlet in the outer ring of front plugging step, first deslagging hole is located in first deslagging passage close to front plugging step side.This design makes ash discharge path zigzag, effectively prolongs deslagging distance, significantly enhances sound attenuation effect;At the same time, the partition step is arranged in the sound attenuation spacer, which reduces the processing difficulty, reduces the working hours and cost, and improves the product competitiveness;The extended deslagging path also buffers the ash speed, avoids high-speed injection, and improves the use safety.

The utility model discloses a plunger sleeve drill reaming machining device, including the bottom plate, the bottom plate upper surface one side is fixed with the vertical board, and vertical board surface fixed mounting has three jaw chuck, the bottom plate upper surface other side is fixed with L shaped board, L shaped board top horizontal fixed has the linear motor, linear motor mobile end lower surface is fixed with the drive motor, drive motor output fixed has the main shaft. In the utility model, setting bottom plate, three jaw chuck, L shaped board, linear motor, drive motor, drill bit, splashproof cylinder, liquid storage box, pump body and shower nozzle, through three jaw chuck to the plunger sleeve fixed, linear motor drives drive motor to remove to through the drill bit of rotation to the plunger sleeve processing, utilizes the pump body to extract the cutting fluid in the liquid storage box when processing, through the shower nozzle and spray on the plunger sleeve surface, and the chip and cutting fluid produced in processing are always sheltered by splashproof cylinder, avoid the chip and cutting fluid splashing, guarantee the clean of device surface.

The utility model relates to the technical field of cooling water spraying, and disclose a spraying device capable of changing spraying area, including water inlet pipe, fixedly connected with connecting pipe on water inlet pipe, the lower end fixedly connected with the spray head of connecting pipe, the outer surface fixedly connected with the transverse plate of connecting pipe, the symmetrical sliding connection of lifting column has been crossed in transverse plate, the lower end fixedly connected with the connecting block of lifting column, fixedly connected with the drainage plate between two connecting blocks, can in the process of cooling water spraying, drive the up-and-down reciprocating movement of drainage plate, change the distance between drainage plate and spray head, make the spatter area of cooling water on the drainage plate change, make cooling water more evenly cover the area needing cooling, avoid the situation that partial cooling is excessive or insufficient, thereby improve the overall cooling effect, ensure that the cooled object or equipment can reach the ideal temperature state.

The invention discloses an automatic furniture plane painting machine which comprises a rack placed above the ground, a conveying frame is fixedly installed above the rack, and a conveying roller is rotationally installed on the conveying frame; the lifting frame is fixedly installed on the inner side of the conveying frame, and a conveying regulation and control mechanism is installed on the lifting frame and used for regulating and controlling the painting range, so that paint waste is avoided; the spraying assembly is arranged on the inner side of the painting bin, swing spraying and lifting control are achieved, and the painting uniformity is improved; the lifting regulation and control assembly is arranged between the conveying regulation and control mechanism and the spraying assembly and used for realizing lifting regulation and control of the spraying assembly according to regulation and control of the painting range; and the transmission assembly is arranged between the spraying assembly and the shaft end of the conveying roller. According to the automatic furniture plane painting machine, the using number of the spray heads can be automatically adjusted and controlled according to the size of furniture plates, paint waste is reduced, the spraying height of the spray heads can be synchronously adjusted, and the painting uniformity is effectively improved in cooperation with swing type spraying.

The utility model discloses an automatic spraying device for a wind power tower drum, and relates to the technical field of wind power tower drum installation. Comprising a base, a rotating mechanism is arranged on one side of the top of the base and used for supporting a tower drum, the rotating mechanism comprises a bottom plate, the bottom plate is connected with the base, a notch is formed in the center of the top of the bottom plate, and a sliding plate is slidably connected into the notch. Through the arrangement of the rotating mechanism and the spraying mechanism, in the using process, a tower drum is firstly hoisted and placed above the bottom plate, and then a motor drives a two-way screw to rotate so that a sliding plate can drive a rubber supporting pad to move; and finally, when the angle of the tower drum needs to be adjusted, the motor drives a second gear to rotate to drive a first gear and a rotating shaft to rotate, so that the angle of the tower drum is adjusted, and the angle of the tower drum is adjusted. The device can ensure that all parts on the surface of the tower drum are uniformly sprayed, and spraying leakage or repeated spraying is avoided.

The utility model relates to the technical field of noise reduction devices, in particular to a noise reduction device for bearing machining, which comprises a noise reduction pad and anti-skid particles, the anti-skid particles are fixedly connected to the lower side of the noise reduction pad, a vibration and noise reduction mechanism is arranged on the inner side of the noise reduction pad, the vibration and noise reduction mechanism comprises a fixed cylinder, and the inner side of the fixed cylinder is tightly attached to a rubber ring sleeve. A movable bearing table is slidably connected to the inner side of the rubber ring sleeve, a piston sleeve sleeves the outer side of the movable bearing table, the lower side of the piston sleeve is tightly attached to the upper end of the noise reduction spring, a connecting through hole is formed in the inner side of the side edge of the lower end of the fixing cylinder, and a damping vibration attenuation assembly is fixedly connected to the outer side of the fixing cylinder and comprises a communicating pipe; according to the multi-layer structure design and the hydraulic damping principle, effective buffering of mechanical vibration and remarkable reduction of noise are achieved, and the vibration reduction and noise reduction performance and stability of the device are further enhanced through structural optimization and detailed design of each further-implemented scheme.

The utility model belongs to the technical field of steam processing equipment, especially efficient energy -conserving steam processing equipment, including equipment body, bottom plate, the top of equipment body is fixedly connected with the gas outlet, the outer fixed surface of gas outlet is connected with adjusting mechanism, the inside fixed connection of adjusting mechanism has electric push rod, the output fixed connection of electric push rod has the sliding block, the inside of sliding block is provided with two limit slot, the inside rotatory connection of adjusting mechanism has the limit ring, the outer fixed surface of limit ring is connected with first fan blade, the outer fixed surface of limit ring is connected with first limit block, the inside rotatory connection of first limit block has first connecting axle. The utility model discloses the adjusting mechanism is set up, through the operation of inside electric push rod, makes two fan blades to rotate in the inside of gas outlet, adjusts through the opening size of inside gas outlet, thereby realizes the control of the gas -out speed conveniently, avoids leading to disposable rapid ejection excess steam, improves the efficiency.

The utility model relates to the field of water cup accessories, in particular to a cup cover device with a blowout deflation structure, which comprises a cup cover body, an outer cover capable of being opened and closed is arranged on the cup cover body, a pressing lock body capable of locking the outer cover is arranged on the cup cover body, a water suction pipe is arranged on the cup cover body, and the water suction pipe is positioned in the outer cover. The cup cover is characterized in that an air leakage part capable of being automatically and elastically closed is arranged on the cup cover body, the air leakage part can be opened by being extruded by the pressing lock body, and the output end of the air leakage part is arranged in the outer cover. Blowout and air leakage can be achieved, high-temperature water vapor is prevented from being sprayed to the face and / or the eyes of a user, the face and the eyes of the user can be effectively prevented from being damaged by the high-temperature water vapor, and therefore potential safety hazards can be effectively reduced.

The application discloses a built-in gas cylinder pouring anti-spraying device, which comprises a lower shell and an upper shell, the lower shell and the upper shell are threadedly connected, the upper end of the upper shell is provided with a neck pipe, a plurality of air inlets are axially arranged on the neck pipe, the inside of the upper shell is provided with a piston head, a reset spring is sleeved on each of four threaded shafts, the lower end of the reset spring is connected with a piston plate, the edge of the piston plate is sleeved on the four threaded shafts, the piston plate is connected with the piston head through a connecting rod, and the top end of the piston head is located at the lower part of the air inlets under the action of the reset spring. The built-in anti-spraying device can prevent the high-pressure gas in the gas cylinder from being sprayed out when the gas cylinder is poured, thereby preventing the gas cylinder from flying or exploding, and the gas cylinder can be used at a small angle.

The utility model discloses a landscaping water-saving irrigation device which comprises a spraying pipe, a handle is fixedly installed on the spraying pipe, a water inlet of the spraying pipe is connected with a water inlet pipe, the spraying pipe is composed of a first arc-shaped spraying pipe body and a second arc-shaped spraying pipe body, the first arc-shaped spraying pipe body is hinged to the second arc-shaped spraying pipe body, and the second arc-shaped spraying pipe body is hinged to the second arc-shaped spraying pipe body. An opening and closing structure is mounted between the first arc-shaped spraying pipe and the second arc-shaped spraying pipe, and relates to the technical field of garden irrigation, the first arc-shaped spraying pipe and the second arc-shaped spraying pipe are hinged, and the opening and closing structure for driving the first arc-shaped spraying pipe to rotate is arranged, so that the first arc-shaped spraying pipe can be opened and closed; the first arc-shaped spraying pipe and the second arc-shaped spraying pipe are arranged in a ring shape and sleeve a tree, so that the tree is annularly irrigated, water is prevented from being sprayed to other places, and the water is saved; bent branch pipes on the first arc-shaped spraying pipe and the second arc-shaped spraying pipe point to the bottom of the tree, and annular irrigation enables irrigation to be uniform.

The utility model discloses a filter press filtering mechanism for raw material medicine preparation, and relates to the technical field of chemical medicine production equipment. Comprising an upper filter-pressing cylinder, the lower part of the upper filter-pressing cylinder is tightly buckled with a lower filter-pressing cylinder, the upper part of the upper filter-pressing cylinder is communicated with a feeding pipe, the middle part of the side wall of the upper filter-pressing cylinder is communicated with a pressurizing pipe, the upper part of an inner cavity of the lower filter-pressing cylinder is provided with a filter cylinder, the bottom of the filter cylinder is provided with a filter plate, and the upper part of the filter plate is covered with filter cloth. A pressurizing pipe applies air pressure, a feeding pipe conveys liquid medicine to increase the air pressure of an upper filter pressing cylinder, the filtering efficiency of the liquid medicine can be effectively improved, a fixing ring presses and fixes filter cloth, and the situation that the filter cloth is separated from a filter plate, activated carbon flows into the filtered liquid medicine again through the filter plate, and then the filtering effect is poor can be effectively prevented. The zero-gas-consumption automatic drain valve can enable filtered liquid medicine to flow into the bottom of the lower filter-pressing cylinder, so that the loss of air pressure in the upper filter-pressing cylinder is avoided, and the filtering efficiency is further improved.

This invention provides a drilling mud and wastewater recovery system, relating to the technical field of recovery systems. It includes drilling pipes and drill pipes. The recovery system, from top to bottom, comprises a mud blowout preventer, an anti-slip mat, a splash guard, a mud scraper, a mud collector, a metal filter flange, a collection and distribution device, and a wastewater collector. The mud blowout preventer is installed on the arc surface of the drill pipe, the anti-slip mat is laid on the drilling platform, and the splash guard is placed on the anti-slip mat. This invention adds a mud collector to the drill pipe face platform to achieve truly efficient mud recovery. Compared to traditional, rudimentary, or even nonexistent equipment, it improves recovery efficiency. An internal screen pipe filters the mud and prevents environmental pollution caused by wastewater splashing. An anti-falling object device is installed at the drill face to effectively eliminate the risk of foreign objects falling into the well. This system achieves environmentally friendly collection, saving drilling costs and protecting the environment.

The present application relates to the field of agricultural planting technology, specifically to a rice planting and fertilizing device with range adjusting function, comprising a storage box, a walking mechanism, a stirring mechanism, a fertilizing structure and a linkage structure; a storage bin is arranged in the storage box; the walking mechanism can change the height of the storage box; the stirring mechanism comprises a main shaft, stirring blades and a driving structure, the driving structure is used to drive the main shaft to rotate; the fertilizing structure has two, the two fertilizing structures are symmetrically arranged on the middle surface of the storage box, the fertilizing structure comprises an adjustable support, a booster pipe and a conveying pipe, the state of the adjustable support can be rotated from vertical downward to inclined upward, the booster pipe is used to increase the pressure when the fertilizer is discharged, and the conveying pipe is installed on the adjustable support; the linkage structure drives the two adjustable supports to move synchronously and reversely; the adjustable support and the linkage structure are arranged, so that the fertilizing of the rice under the fertilizing device is realized at the same time in the process of fertilizing the rice around the fertilizing device.

The oil pipe blocking device provided by the embodiment of the present disclosure comprises a cylinder, a support and a sealing ball. One end of the cylinder is connected with the support, the other end of the cylinder is used for being connected with an oil pipe, and the support is located at the end of the cylinder which is away from the wellhead of the oil well. A ball seat is arranged in the cylinder, the sealing ball is located in the cylinder and between the ball seat and the support, a through hole is arranged on the ball seat, and the support provides elastic support for the sealing ball, so that the sealing ball is pressed between the support and the ball seat and seals the through hole. In the process of lowering the oil pipe into the oil well, the well killing fluid in the oil well cannot enter the inside of the oil pipe due to the blocking effect of the sealing ball, and the well killing fluid is effectively prevented from being sprayed out of the oil pipe. When the oil pipe is pressurized, the sealing ball can be separated from the ball seat due to the elastic support provided by the support for the sealing ball, so that the oil pipe blocking device is in a conductive state, thereby facilitating the backwashing operation of the oil well.