69results about How to "Guaranteed to be constant" patented technology

Capacitive touch screen including first and second substrates (2, 4) that extend parallel to and at a distance from each other, said first and second substrates (2, 4) being made of a transparent, dielectric material, a first series of electrodes (6), made of a transparent, electrically conductive material, being arranged on at least the surface (2a) of the first substrate (2) that faces the second substrate (4), said touch screen being characterized in that it includes means for keeping the space between the two substrates (2, 4) constant.

The invention discloses a constant-air-volume motor drive control method for a fan. The constant-air-volume motor drive control method comprises the following steps: determining Duty 0, N0, I0 and CFM0, keeping Duty0 unchanged, and blocking the sectional area of an air flue opening; respectively obtaining Nx, Ix and CFMx under different Sx values while an initial sectional area is S0 and an effective ventilation sectional area is Sx; obtaining a stepless speed regulation datum reference curve; enabling the CFMX to be identically equal to CFM0 by regulating Dutyx, thereby obtaining current Nx, Ix and Dutyx; obtaining a constant-air-volume regulating datum curve; setting Dutyx as Duty0, and measuring Nx and Ix; according to the stepless speed regulation datum reference curve and the constant-air-volume regulating datum curve, correcting a duty ratio to be Dutyx, and enabling air volume CFMx of an air outlet to be identically equal to CFM0. In case of no sensor feedback, the control method realizes intelligent control of constant air volume of the fan, and improves the reliability of motor control.

The invention relates to a fertilization control system for a circular and translational motion type sprinkling irrigation machine. In the fertilization control system, a constant pressure water supply unit is equipped to solve the hydraulic pressure fluctuation caused by switching of spray nozzle and other reasons, so that the operational reliability and spraying uniformity of the fertilization control system are improved; a control unit is adopted to adjust the variation of the pumping flow of fertilization injection along with the water supply flow of the constant pressure water supply unit, so that the precise and constant fertilization concentration and fertilizing amount within the whole sprinkling irrigation range are guaranteed, and especially, the precise and constant fertilization concentration and fertilizing amount are guaranteed in the situation of large flow variation amplitude of a circular and translational motion type sprinkling irrigation machine provided with a tail gun within the opening and closing time period of the tail gun.

The invention relates to a coaxial in-arc wire feeding and out-arc powder feeding TIG electric arc additive manufacturing device. The device comprises a SiO2 glass tube, four powder feeding spray nozzles, a tungsten electrode red copper cooling body, a half-cracking hollow tungsten electrode and four powder feeding channels. Four types of alloy powder with different components can be supplied at most through the four powder feeding channels and the powder feeding quantity of each powder feeding channel is adjustable, and additive manufacturing of a functional gradient structure material part is achieved easily, so that material, structure and service performance of the additive manufacturing part are matched optimally.

The invention discloses an LED (Light Emitting Diode) lamp capable of adjusting color temperature. The LED lamp comprises an LED lamp bead array. The LED lamp is characterized by further comprising a PWM (Pulse Width Modulation) drive module and an MCU (Microprogrammed Controller Unit). The PWM drive module is electrically connected to the MCU. PWM signal parameters which are corresponding to multiple paths of the LED lamp bead arrays are calculated by the MCU under the premise of maintaining a constant brightness when color temperature is adjusted, and the PWM signals are output to the PWM drive module by the MCU. According to the LED lamp provided by the invention, multiple paths of PWM signal parameters which are required for maintaining the constant brightness when the color temperature is adjusted are calculated through an MCU built-in algorithm for color temperature adjustment with the constant brightness. The outputs of the LED lamp bead arrays are adjusted by the PWM drive module by setting the PWM signals. The constant brightness is ensured while the color temperature adjustment is operated for the LED lamp.

The invention discloses a sulfur dioxide aiming at high-concentration sulfur dioxide flue gas, adopting two-tower slurry interactive spray washing and keeping basic conformance of characteristics of slurry in a two-tower slurry pool. No other additional slurry transferring device is added between two towers, reciprocating circulation flow of the slurry between the two towers can be achieved, conformance of two-tower slurry concentration, slurry pH value, slurry temperature and slurry liquid level can be maintained, and equal proportion absorption of two-tower spraying layers to flue gas sulfur dioxide is achieved. The device and the method enable the two towers to absorb high-concentration sulfur dioxide of flue gas stably and save investment of a set of slurry parameter detection system.

The invention discloses an oil volatility measurement device. The device comprises an air supply mechanism, an air speed monitoring mechanism, a constant temperature mechanism, a temperature monitoring mechanism, a controller, a sheet-shaped carrier coated with oil to be measured and a force sensor which are all arranged in a closed box body, wherein the air speed monitoring mechanism is used for obtaining an air speed signal above the sheet-shaped carrier in the closed box body and sending to the controller; the constant temperature mechanism is used for changing the temperature magnitude near to the sheet-shaped carrier in the closed box body; the temperature monitoring mechanism is used for detecting a temperature signal near to the sheet-shaped carrier in the closed box body; the controller is used for sending an air speed control instruction to the air supply mechanism and sending a temperature control instruction to the constant temperature mechanism; after receiving the temperature control instruction, the constant temperature mechanism controls the temperature near to the sheet-shaped carrier in the closed box body at a predetermined temperature value; and after receiving the air speed control instruction, the air supply mechanism controls air speed above the sheet-shaped carrier in the closed box body at a predetermined air speed value. The device is easy to operate and has low error.

An in-situ analyzer of gas pollutants by micro sampling is composed of a reflector, a filter set, an infrared ray source, an infrared detector, lens, an optical absorbing cavity, the coarse, fine and superfine filters at gas inlet of the optical absorbing cavity, critical gas-pumping hole on the wall of the optical absorbing cavity, and a vacuum pump for said critical gas-pumping hole. Its advantages are high precision, unique structure and high sampling reliability.

The invention provides a voltage regulating transformer which comprises a main transformer body and a string transformer body. The main transformer body comprises a main transformer public coil, a main transformer series-connection coil and a main transformer voltage regulating coil, wherein the main transformer public coil and the main transformer series-connection coil are in series connection with a wire inlet end, and the main transformer voltage regulating coil is in electromagnetic coupling with the main transformer public coil and the main transformer series-connection coil. The string transformer body comprises a string transformer primary coil and a string transformer secondary coil, wherein the string transformer primary coil and the string transformer secondary coil are mutually in electromagnetic coupling, the string transformer primary coil is in series connection with a main transformer voltage regulating coil, and the string transformer secondary coil in series connection with the main transformer series-connection coil is connected with a wire outlet end. A rank difference voltage regulating method of the voltage regulating transformer includes the following steps that transmission voltage in the string transformer secondary coil is changed through regulating of the number of turns of the connected main transformer series-connection coil; the number of turns of the connected main transformer voltage regulating coil is regulated, so that sensing voltage in the string transformer secondary coil is changed, the sensing voltage and / or the transmission voltage are / is regulated, so that voltage of the wire outlet end of the voltage regulating transformer is changed, wherein the voltage of the wire outlet end is equal to the algebraic sum of the transmission voltage and the sensing voltage.

The invention discloses a fresh blueberry fruit picking, storage, transportation and selling integrated preservation method. According to the method, small baskets matched with a blueberry storage, transportation and selling microenvironment air-regulating preservation box are utilized for picking blueberry fruits with the 80-90% ripeness; the blueberry fruits are pre-cooled for 4-8 hours at 0-5 DEG C within 2-6 hours after being harvested, and every two small baskets are put in the preservation box; a physiological regulation preservation strip is placed in a bottom transverse groove of the box body, then a special matched coolant bag is dipped into clear water and then put in a fixed position between every two baskets, and the bottom of the special matched coolant bag is in sufficient contact with the physiological regulation preservation strip; then a shakeproof biological preservation pad is placed on every two small baskets and then tightly covered with an upper cover, and stacking for storage is conducted; the blueberry fruits are periodically taken out of a warehouse, and then a cold-chain logistics vehicle is utilized for conveying the blueberry fruits to commission sale site refrigeration houses, or the blueberry fruits are directly sold in low-temperature containers, wherein the blueberry fruits can be stored for 6-10 weeks at the temperature of 0 DEG C, and can be stored for 1-3 weeks at the temperature of 8-10 DEG C; finally, the blueberry fruits are put in domestic refrigerators, and the preservation period is 1-7 days. By means of the preservation method, the problems that after the blueberry fruits are picked, due to repeated transfer, the bloom of the blueberry fruits is lost, and the storability is lowered accordingly can be solved.

The invention discloses a fall-proof device for electric power test climbing and an application method thereof. The fall-proof device comprises a box body, wherein the top side of the box body is provided with a groove; two positioning plates are welded in the groove; screw rods are welded at the tops of the positioning plates; the outer sides of two screw rods are movably sleeved with one same cover plate; onesame limiting rod iswelded between the bottom of one of the two positioning plates and the bottom inner wall of the groove; the outer side of the limiting rod is movably sleeved with a sliding plate; two brackets are welded at the bottom of the sliding plate; the bottoms of the brackets are rotatably provided with rotating shafts; onesame winding wheel is welded at theends, close toeach other, of the rotating shafts; and one end of a traction rope is wound and fixedly arranged on the winding wheel. The fall-proof device for electric power test climbing and the application methodthereof have reasonable design, can increase elastic force of a first spring, a second spring and a third spring, conveniently adjust the length of the traction rope, can buffer a hook and the traction rope, avoid the hookbreakage caused by the excessive instantaneous force, and are conducive to use.

The invention belongs to the field of waste incineration equipment and particularly relates to a fixed grate and an incineration system applying the same. The fixed grate at least comprises grate plates; the arrangement heights of the grate plates are gradually reduced so as to form a step type grate body structure of the fixed grate; a spacing is formed between plate bodies of each two adjacent grate plates in the perpendicular direction so as to form a ventilation pore running through a grate body; the grate plates are provided with extending plates; the plate faces of each extension plate and the plate body of the previous grate plate are crossed mutually to form a wind guide port structure. The incineration system comprises a main combustion chamber, the fixed grate and a grate ejector rod, wherein the main combustion chamber is isolated and divided into a combustion cavity and a hot blast cavity by the fixed grate; the air inlet end of the hot blast cavity is also the feed end of the fixed grate; the grate ejector rod is used for overturning and ejecting materials on the incineration face; the grate ejector rod passes through a through hole and runs through the material layer on the fixed grate in the maximum lift range. The fixed grate and the incineration system have reasonable and practical structures; the grate body has a good ventilation effect; material incineration efficiency is high.

The invention discloses a medical infusion device which comprises a liquid storage box, a partition plate and an air guide pipe. The partition plate divides the liquid storage box into a left cavity and a right cavity. The size of the left cavity is larger than that of the right cavity. The bottom of the partition plate is provided with a communication hole. One end opening of the air guide pipe is in a funnel shape, and the air guide pipe penetrates through the partition plate. The end, with the end opening in the funnel shape, of the air guide pipe is located at the bottom of the left cavity, and the other end of the air guide pipe is located in the right cavity. The top of the left cavity is provided with a liquid adding hole, and the liquid adding hole is provided with a detachable stopper. The top of the right cavity is provided with an air inlet hole. The bottom of the right cavity is provided with an infusion hole, and the infusion hole is provided with a rubber stopper. One end of an infusion hose is provided with a bottle stopper puncturing device, and the other end is provided with a vein needle. The infusion hose is provided with a drip chamber, a flow speed adjuster and a liquid medicine filter. The bottler stopper puncturing device penetrates through the infusion hole. According to the medical infusion device, the liquid medicine can drip stably at a constant speed no matter whether the infusion speed is high or low.

The invention discloses an impregnation method for a solid-state aluminum electrolytic capacitor. The impregnation method comprises the following steps: step 1: welding elements: preparing multiple cross bars, and welding multiple elements on each cross bar; step 2: adjusting the positions of two side plates, wherein an impregnation container is a square cover-less container; guide mechanisms arearranged on both sides of the impregnation container; the side plates are arranged in the guide mechanisms and can slide in the lengthwise directions of the guide mechanisms; a row of V-shaped slots (6) for placing the cross bars are formed in one end of each side plate; reversely sliding the two side plates, and stopping sliding the side plates until the side plates reach preset positions; step 3: preventing the cross bars with the elements: respectively placing both ends of each cross bar welded with the elements into the V-shaped slots of the two side plates; step 4: performing impregnation: completely impregnating the elements into an impregnation solution for a preset impregnation time length, taking out the cross bars, and completing the impregnation process. The impregnation methodfor the solid-state aluminum electrolytic capacitor is high in flexibility and high in impregnation efficiency.

The invention provides a postoperative drainage constant pressure device. The postoperative drainage constant pressure device is used for conducting drainage on a patient on a lifting bed, and comprises a hanging rod, a drainage bottle hung on the hanging rod, and a drainage tube used for being connected between the patient and the drainage bottle; and the hanging rod and a lifting part of the lifting bed ascend and descend synchronously, and the hanging rod is kept in a vertical state all the time. According to the postoperative drainage constant pressure device provided by the invention, thehanging rod, the drainage bottle and the drainage tube can ascend and descend synchronously along with the lifting part of the lifting bed, the hanging rod is kept in the vertical state all the time,thus it is ensured that the height difference between a drainage tube orifice of the drainage tube and an external auditory canal orifice of the patient is constant, the postoperative drainage constant pressure device is simple in structure and convenient to operate, and thus accidents can be avoided.

The invention discloses a novel full-automatic down filling machine. The down filling machine comprises a fan, a down storage box, a weighing device and a down filling pipe, wherein the down filling pipe comprises an inner pipe, an outer pipe and a long pipe, a through down incoming hole is formed in the middle of the inner pipe, two steps are arranged at the front end of the inner pipe, a step is arranged at the rear end inside the outer pipe, the step at the rear end inside the outer pipe is in lap joint with the first step at the front end of the inner pipe in a sealing mode, an annular cavity is formed by the step at the rear end inside the outer pipe and the second step at the front end of the inner pipe, a gas inlet which is communicated with the annular cavity is arranged on one side of the outer pipe, a plurality of gas outgoing grooves which are communicated with the annular cavity are uniformly formed in the front end of the inner pipe and are formed in an inclined mode in the clockwise or anticlockwise direction, and the long pipe is connected with the front end of the outer pipe in a sealing mode. Compared with the prior art, the down filling machine has the advantages of being simple in structure, convenient to operate, high in working efficiency, low in energy consumption, low in labor intensity, uniform in down filling and high in down filling quality.

The invention relates to an oil product volatility and volatile ingredient testing device. The device comprises an airtight box, an air supply device arranged in the airtight box, a wind speed monitoring device, a thermostat, a temperature monitoring device, a gas analysis device, a controller, a bowl-like carrier used for carrying a to-be-tested oil product and a force sensor used for acquiring carrier mass change signals. The air supply device is used for supplying air. The wind speed monitoring device is used for acquiring wind speed signals and sending the wind speed signals to the controller. The thermostat is used for changing the temperature in the airtight box. The temperature monitoring device is used for detecting temperature signals in the airtight box. The gas analysis device is used for detecting gas ingredients in the airtight box and is connected with the controller. The controller sends a wind speed control instruction to the air supply device and sends a temperature control instruction to the thermostat. The oil product volatility and volatile ingredient testing device is easy to operate, small in error and capable of testing oil product volatility and the content of volatile ingredients at the same time.

The invention concerns a belt or chain drive with at least one belt-shaped or chain-shaped drive element (1) conducted via drive or deflection disks (2, 3). For the accurate detection of the movement or for the exact transport of a component, movable entraining elements (7) are located in the belt-shaped or chain-shaped drive element (1) transverse to the movement direction of the drive element (1), between a withdrawal position and an extended entraining position, and an actuation device (11), by means of which the entraining elements (7) can be moved into the entraining position in a non-curved area of the drive element (1), is assigned to the drive element (1).

The invention discloses an electrically and hydraulically driven high-precision intelligent quenching machine tool for disc parts and a control method for the electrically and hydraulically driven high-precision intelligent quenching machine tool. The electrically and hydraulically driven high-precision intelligent quenching machine tool comprises an adjustable rack, a quenching workbench, a process parameter database and a control system, wherein the adjustable rack comprises a rack base and an inclined supporting frame; the quenching workbench comprises a rotary table and an intelligent clamping jaw; and the control system comprises a positioning detecting system, a clamping force control system and an operation monitoring system. The invention also discloses a control method. The electrically and hydraulically driven high-precision intelligent quenching machine tool can be suitable for quenching thermal treatment on a large scale of parts with different structural parameters, can determine key parameters such the optimal rack bracket inclination angle, quenching speed, quenching frequency and the like according to types of quenched workpieces, material properties and quenching technological requirements, and improves quenching parameter determining reasonability; and meanwhile, the operation monitoring system can be used for effectively monitoring process parameters in a quenching process, improves quenching efficiency, reliability and quality, and realizes an intelligent quenching process.

The invention relates to a bentonite feed which is prepared from the following raw materials in parts by weight: 20 to 35 parts of bentonite, 30 to 40 parts of corns, 30 to 40 parts of sweet potato powder, 25 to 30 parts of soybean meal, 5 to 10 parts of fish meal, 5 to 10 parts of rice bran, 2 to 5 parts of ground beeltles, 2 to 5 parts of folium isatidis, 2 to 5 parts of agrimonia pilosa ledeb, 2 to 5 parts of reed roots, 2 to 5 parts of folium mori, 2 to 5 parts of edible salt, 1 to 4 parts of calcium hydrogen phosphate, 1 to 4 parts of seaweed meal, 1 to 2 parts of cinnamyl aldehyde, 0.5 to 1 part of zymophyte and 0.2 to 0.5 part of citric acid. The bentonite serving as a green natural mineral substance is added into a special feed for young ducks, so that the young ducks can fully absorb trace elements under a naturally sanitary state, and the yield and the quality of the young ducks are improved.

The invention relates to a duckling feed. The raw materials of the duckling feed include, by weight: 35 to 50 parts of medical stone, 30 to 40 parts of corn, 30 to 40 parts of sweet potato, 30 to 40 parts of soybean meal, 5 to 10 parts of meat meal, 5 to 10 parts of bran, 2 to 5 parts of woodlouse, 2 to 5 parts of trace element additive, 2 to 5 parts of primrose, 2 to 5 parts of reed root, 2 to 5 parts of poplar bark, 2 to 5 parts of salt, 1 to 4 parts of calcium hydrogen phosphate, 1 to 2 parts of shell powder, 1 to 2 parts of saccharin, 0.5 to 1 part of vitamin powder, and 0.2 to 0.5 part of citric acid. The green natural mineral, namely the medical stone, is added into the feed special for ducklings to eat directly, the ducklings are capable of absorbing trace elements completely in the natural sanitary condition, the yield of ducklings is increased, and quality of the ducklings is improved.

A lithium secondary cell array in a cylindrical design has a winding mandrel and a winding packet, which contains foil-like coated strips and contacting strips that form the electric cell structure consisting of anode, cathode and separator. The cell array has outer electrical connections which include pole caps. The winding mandrel includes an insulating material and has a through-channel extending in the longitudinal axis direction. The winding mandrel is connected to an inner pole cap at each end, the pole caps likewise having a respective through-channel. One outer pole cap having a through-passage is respectively provided, which surrounds the winding packet circumferentially at least in the edge region, wherein several radially arranged force-fit connections, each acting between the outer and the inner pole cap, are used to fix the winding packet and achieve the electrical contacting between the contacting strips and the outer pole cap.

The invention discloses a wood board disinfection drying box. The wood board disinfection drying box comprises a box body; the outer side of the box body is wrapped with a sealing shell, and a cover plate is installed at the top of the box body; a partition baffle is fixedly installed in the box body and provided with ventilation holes; a disinfection drying bin is arranged below the partition baffle, a temperature sensor is installed in the disinfection drying bin, and an electric heating wire net is arranged at the bottom of the disinfection drying bin; an observation window is formed in the front surface wall of a shell of the disinfection drying bin, and a disinfection device is installed in the disinfection drying bin and connected with an ozone source through a gas inlet pipe; a power interface is formed in the outer side of the box body, and a protection cover is installed on the outer side of the power interface; and a control panel is embedded in the surface wall of the outer side of the box body and provided with a liquid crystal display screen, an adjusting and control rotary knob and a power switch. According to the wood board disinfection drying box, the interior of the drying box can be in a strong oxidation state while medicines are dried, and the effects of killing bacteria and preventing growth and reproduction of the bacteria are achieved.

The invention discloses a novel full-automatic down filling machine. The down filling machine comprises a fan, a down storage box, a weighing device and a down filling pipe, wherein the down filling pipe comprises an inner pipe, an outer pipe and a long pipe, a through down incoming hole is formed in the middle of the inner pipe, two steps are arranged at the front end of the inner pipe, a step is arranged at the rear end inside the outer pipe, the step at the rear end inside the outer pipe is in lap joint with the first step at the front end of the inner pipe in a sealing mode, an annular cavity is formed by the step at the rear end inside the outer pipe and the second step at the front end of the inner pipe, a gas inlet which is communicated with the annular cavity is arranged on one side of the outer pipe, a plurality of gas outgoing grooves which are communicated with the annular cavity are uniformly formed in the front end of the inner pipe and are formed in an inclined mode in the clockwise or anticlockwise direction, and the long pipe is connected with the front end of the outer pipe in a sealing mode. Compared with the prior art, the down filling machine has the advantages of being simple in structure, convenient to operate, high in working efficiency, low in energy consumption, low in labor intensity, uniform in down filling and high in down filling quality.

The invention discloses a saline-alkali soil micro-domain improved sowing device which comprises a frame. A furrow opener, a water injection mechanism, a soil breaking mechanism, a matrix preparationmechanism and a sowing mechanism are sequentially arranged in the frame from left to right; during sowing, the furrow opener firstly performs furrowing, the water injection mechanism injects water into furrows, and the soil breaking mechanism breaks soil blocks; and then soil and a matrix are mixed according to a certain proportion through the matrix preparation mechanism and then stirred in a stirring barrel, a first feeding mechanism conveys the matrix from the left end to fall off, the first layer of matrix is laid in the furrows, the sowing mechanism sows on the first layer of matrix, andthen a second feeding mechanism conveys the matrix to fall off to cover seeds. Sowing is completed, the automation degree is high, the labor intensity is reduced, and the sowing efficiency is improved.

The invention relates to a preparation method for a bentonite feed. The preparation method comprises the following steps: (1) heating natural bentonite in water to be dissolved, filtering to obtain a bentonite leachate, dehydrating and concentrating the bentonite leachate, then conducting ultraviolet ray disinfection to obtain a concentrated bentonite paste, and then conducting dehydration and drying to obtain clean bentonite powder for later use; (2) cleaning, drying and sterilizing corn, potato powder, soybean meal, fish meal, rice bran and ground beetle to be smashed into particles with the diameter of 1-3 mm, and weighing and mixing the particle according to weight to form particle mixture for later use; (3) cleaning indigowoad leaf, hairyvein agrimony, reed root and folium mori with clean water, decocting for 30 min in water after cleaning, adding salt, calcium hydrophosphate, seaweed meal, cinnamic aldehyde, zymophyte and citric acid, continuously decocting for 10-15 min, filtering out impurities, and taking out a filtrate for later use. Little ducks can fully absorb microelements in the natural sanitary state, and the yield and quality of the little ducks can be improved.

The invention relates to an application method of a bentonite feed. The application method mainly comprises the following steps: little ducks are fed 5-6 times a day at 1-3 weeks of age, 2-3 times a day at 4-5 weeks of age and 1-2 times a day at 5-6 weeks of age; in the feed distribution process, the little ducks need to be supplied with sufficient drinking water and sterilized periodically; other auxiliary feeds with overhigh calcium content cannot be used; peak-season disease control needs to be noticed, proper medicine dosing is needed for disease control, and when plague or flu happens, the everyday bentonite feed dosing frequency needs to be reduced properly; in the feed reducing process, if egg laying or weight is obviously changed, the dosing amount needs to be restored at first and then the cause is checked. The bentonite is used and added into the special feed directly used for the little ducks, so that the little ducks can fully absorb microelements in the natural sanitary state, and the yield and quality of the little ducks can be improved.

The invention relates to the technical field of building equipment, and provides a dust removal device for building construction. The dust removal device comprises a dust removal rack and a clamping position adjusting frame. The dust removal rack comprises a rotating rod frame, and a plurality of curved stirring frames with a stirring function are arranged at one side port of the rotating rod frame. The outer sides of the plurality of groups of curved stirring frames are connected with curved rotating plates for improving the stirring force in a clamped mode. The inner side of the dust removal rack is slidably connected with a plurality of groups of threaded transmission frames. The outer side of a rotating rod frame is rotatably connected with a movable buckle block, and the outer side of the movable buckle block is connected with a wedging rotating block in a clamped mode. According to the dust removal device for building construction, when a central rotating wheel frame rotates, a sliding push rod is driven to move towards the inner side through rotating friction force, the sliding push rod extrudes an agent tank to extrude an agent in the agent tank, and the agent is mixed through water flow sprayed in a rubber clamping groove, so that the constant quantity of single-time dust removal water flow is guaranteed, and the situation that the work of workers is affected due to too large water mist is avoided.