50results about How to "Improve whitening efficiency" patented technology

The invention relates to a multi-adaptive tree trunk whitewashing machine which comprises a rack, a storing device, a pipeline transporter, a driving device and a spraying device, wherein the storingdevice, the pipeline transporter, the driving device and the spraying device are arranged on the rack; the storing device is used for containing spraying fluid, the pipeline transporter is used for conveying the spraying fluid to the spraying device, and the spraying device is used for spraying the spraying fluid; the spraying device comprises a spraying rod, a rotary support device, a support plate and a lifting device, and the rotary support device is used for driving the spraying rod to rotate in the horizontal plane; the rotary support device and the driving device are both arranged on thesupport plate, and the driving device is used for driving the rotary support device to rotate; and the support plate is hinged with the rack, and the lifting device is used for driving the support plate to rotate around the rack. The whitewashing machine can rotationally spray whitewashing fluid for tree trunks in all directions, can adapt to different thickness and different types of trees, andhas the advantages of strong adaptability, energy conservation, environment protection, simple operation, high efficiency and convenience in maintenance.

The invention relates to a high-efficiency tree whitewashing device. The high-efficiency tree whitewashing device comprises a base, a regulating mechanism, a feeding mechanism and a coating mechanism, wherein the regulating mechanism comprises a first rack, a first cylindrical gear, a first motor, a second rack and regulating bars; the feeding mechanism comprises a material storage barrel, a water pump, a feeding header pipe, a tee joint and feeding branch pipes; the coating mechanism comprises two coating assemblies. According to the high-efficiency tree whitewashing device disclosed by the invention, the distance between two hairbrush rollers is regulated through the two regulating bars, a tree trunk is placed between the two hairbrush rollers, lime water is painted through back-and-forth rotation of the two hairbrush rollers along the circumferential direction of the tree trunk, and the whitewashing work of the whole tree trunk is completed under the situation that two half cycles are respectively painted by the two hairbrush rollers, so that the painting area in unit time is increased; in addition, coating is continuously scattered to the hairbrush rollers through a scattering plate, synchronous proceeding of feeding and painting is realized, time and labor are saved, the whitewashing efficiency is increased, and manpower can be greatly saved.

The invention discloses a tree whitewashing apparatus, which belongs to the apparatus field ofbrushing liquid or other fluid on a surface and comprises a vehicle body, a hose, a pump, a lead screw, a mechanical arm and a controller, wherein the vehicle body is provided with a water tank; the water tank is filled with lime water; the hose is connected to the water tank and one end of the hose is sealed; the mechanism arm comprises a mechanical arm support end and a mechanical arm execute end; the mechanical arm execute end is shaped as two semi-circles; an inner groove is formed on the mechanical arm execute end; the hose is provided with the pump and the sealed end of the hose is located inside the mechanical arm inner groove; a plurality of holes are opened at the hose section located in the mechanical arm inner groove; the mechanical arm support end is connected to the lead screw; the lead screw is connected to a lift-drop motor; the mechanical arm execute end is connected to a motor through a bi-direction motor; the vehicle body is provided with a maintaining frame; the maintaining frame is connected to the lift-drop motor and the mechanical arm support end is slidingly connected to the maintaining frame; and the motor and the lift-drop motor are respectively connected to the controller. With solution of the invention, trees are whitewashed rapidly with high efficiency and high quality.

The invention relates to a preparation method of a nonionic vesicle with a whitening effect. The preparation method is characterized by comprising following steps: step A, weighing a conventional whitening agent, hydroxyl phenoxyl propionic acid, phloretin, hydroxytyrosol, and a cyanotis arachoidea root extract according to a mass ratio of 3-10:1:3:2:1, and then mixing the mixture with polyol to obtain a whitening active composition solution; step B, weighing glyceryl oleate citrate, cetearyl glucoside, and polyglyceryl-3 methyl glucose distearate according to a mass ratio of 0.5-3:2:1, and adding magnolol to obtain a nonionic surfactant premix; step C, preparing a nonionic surfactant water solution; and step D, mixing the whitening active composition solution with the nonionic surfactant water solution according to a mass ratio of 1:2-4 to prepare the nonionic vesicle with a whitening effect. The vesicle can wrap multiple whitening active components and overcomes the problems such as single whitening mechanism, bad product stability, low whitening efficiency, easy triggering of skin irritation, and the like.

The invention relates to a method for enhancing whitening efficiency of an optical bleaching agent (OBA) in a double-coated / multi-coated paper or coated paper board with starch. In the method provided by the invention, starch is substituted for part or all of expensive synthetic latex adhesive in the paint by utilizing the characteristic that the cheap starch can retain the OBA on the surface of the coated paper, and meanwhile, the consumption of the expensive OBA carrier PVA (polyvinyl alcohol) or CMC (carboxymethyl cellulose) is lowered, thereby being beneficial to environmental protection and greatly lowering the production cost of the coated paper and coated paper board. The invention is suitable for factories for producing enamelled paper, coated ivory board, coated white board, coated box paper board, coated kraft cardboard, and other coated paper and coated paper boards by a double-coating or multi-coating technique.

The invention discloses a grinding bar type grinding machine. The grinding bar type grinding machine comprises a machine frame and a main shaft, wherein the main shaft is in transmission connection with a motor; a grinding roll is sheathed on the upper part of the main shaft; a screen cylinder is arranged at the periphery of the grinding roll and is matched with the grinding roll; a grinding chamber is formed between the grinding roll and the screen cylinder; the grinding roll comprises a roll body, a plurality of grooves of the roll body are arranged on the outer surface of the roll body along the axial direction, a first grinding bar is fixedly arranged in each groove of the roll body, a convex strip of the roll body is formed between the two grooves of the roll body, and an air ventilating hole is formed in each convex strip of the roll body along the axial direction, and is communicated with the main shaft; the screen cylinder comprises a screen frame body, screen plates and second grinding bars, groove plates are fixedly arranged on the screen frame body, and are provided with grooves, each second grinding bar is fixedly arranged in the corresponding groove, and each screen plate is arranged at the gap between the two groove plates. The grinding bar type grinding machine has the advantages that by adopting the grinding roll and the screen cylinder with the structures, the generation of crushed grains is reduced, and the whitening rate is improved; by utilizing the grinding bars for multiple times, the investment cost of equipment is reduced.

The invention discloses an anti-aging cosmetic composition capable of whitening and brightening skin, which relates to the technical field of cosmetics. The anti-aging cosmetic composition capable ofwhitening and brightening the skin is prepared from retinol palmitate, wrapped retinol, a citrus peel extract, a yeast extract, a hylocereus undatus extract, carnosine, 3-o-ethyl ascorbic acid, saccharomycetes / rice fermentation product filtrate and wrapped ferulic acid. According to the invention, under the combined action of the matching of the components; the composition can absorb ultraviolet rays, resist oxidation, inhibit alpha-MSH from stimulating melanin synthesis of B16 melanoma cells, reduce melanin, inhibit tyrosinase activity, inhibit transport of melanin by driver protein, promoteactivation and renewal of epidermal cells, avoid abnormal cutin accumulation, increase skin gloss and remove dull yellow. The composition can also avoid various defects when being used independently,and the whitening efficiency is improved. The whitening and skin brightening effects are achieved through cooperation of the action principles of different components.

The invention provides a preparing method for high-whiteness potash feldspar powder. The preparing method comprises beneficiation and ore washing, preliminary screening, ball milling, magnetic separation, primary flotation, secondary flotation and water removal. Petroleum sodium sulfonate and sodium oleate are selected as a collecting agent of primary flotation, and lauryl amine, dodecyl trimethylammonium chloride and cetyltrimethylammonium chloride serve as a collecting agent of secondary flotation; and compared with a single collecting agent, the flotation effect can be improved, and the whiteness is improved. Treatment is conducted in a physical method and chemical method combination manner, the whitening efficiency is improved, and the high-whiteness potash feldspar powder is obtained; and the pressure brought to the environment due to usage of high-concentration sulfuric acid is avoided.

The invention discloses a building house blank wall treatment device and method. The device comprises a base, and the top of the base is provided with a wall surface whitewashing device; the wall surface whitewashing device comprises a white paint bucket, a positioning piece, a supporting plate, a servo motor, a positioning plate, a driving gear, a driven gear, a lead screw, a first fixed plate, asecond fixed plate, a movable plate, sliding blocks and a driving whitewashing piece; the white paint bucket is movably connected to the top of the base through the positioning piece, the supportingplate is fixedly connected to the top of the base, and the servo motor is fixedly connected to one side of the top of the supporting plate through the positioning plate. The building house blank walltreatment device and method have the advantages that the automation degree of the device is high, and the situation is avoided that in the process of manually whitewashing a blank wall surface, sincepaint contains a trace amount of formaldehyde and other harmful substances, damage is caused to the human body; meanwhile, in the manual whitewashing process, the efficiency of whitewashing the wall surface is improved without the assistance of auxiliary tools.

The invention relates to an adaptive tree whitening device, which belongs to the technical field of coating machine preparation. The self-adaptive tree whitening device of the present invention has high whitening efficiency and even coating, wherein the hinge can control the opening and closing of the two arc-shaped coaters, and adjust the distance between the two arc-shaped coaters and the trunk to adapt to Tree trunks of different thicknesses, and the bone-socket rotating shaft can be rotated at different angles to adjust the angle between the two arc applicators and the trunk to adapt to different shapes of trunks, and can adapt to all kinds of trunks. bright future.

The invention provides a low energy consumption water-saving type flue gas de-whitening device. The device comprises a heat exchanger, a fan, a flue gas duct, a hot air tube, a mixed air duct and centrifugal separation tubes, the two sides of the heat exchanger are respectively connected with the fan and the hot air tube, and the centrifugal separation tubes are vertically arranged in the heat exchanger; the flue gas duct communicated with the centrifugal separation tubes is arranged at the top of the heat exchanger, the mixed air duct communicated with the centrifugal separation tubes is arranged at the bottom of the heat exchanger, the hot air tube is communicated with the mixed air duct and then communicated with a chimney, and inlet vanes are arranged at the tops of the centrifugal separation tubes. The invention further provides a low energy consumption water-saving type flue gas de-whitening method. The method comprises the following steps that flue gas enters the centrifugal separation tubes in the heat exchanger from the flue gas duct, cold air is transported to the heat exchanger through the fan, and heat exchange is conducted on the flue gas and the cold air. The device utilizes natural air (cold air) for heat exchange to achieve the purpose of saving energy consumption; the device adopts a cyclone centrifugal pipeline, and the de-whitening efficiency is improved.

The invention provides a method for purifying and whitening potassium feldspar powder. The method comprises the steps of ball milling, magnetic separation, primary flotation, secondary flotation and dehydration, firstly, magnetic separation is performed so as to remove part of the iron from potassium feldspar and improve whiteness, and then flotation is performed twice so as to remove iron and mica which have main influence on the whiteness from the potassium feldspar, so that the whitening effect is increased. For the primary flotation, petroleum sodium sulfonate and sodium oleate are used asflotation collectors, and for the secondary flotation, lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyl trimethyl ammonium chloride are used as collectors. According to the method, thepotassium feldspar powder is whitened by adopting the processes of ball milling, magnetic separation, primary floatation, secondary floatation and dehydration, and a physical method and a chemical method are combined for treatment, so that the whitening efficiency is improved, and the pressure on the environment due to the use of high-concentration sulfuric acid is avoided.

The invention relates to a de-whitening device, in particular to an efficient de-whitening device and an operation method thereof. The efficient de-whitening device comprises a spraying tower, a heat exchanger and an emptying pipe, the upper end of the spraying tower and the upper portion of the heat exchanger are communicated through a smoke communicating pipe, the bottom of the heat exchanger is communicated with the emptying pipe, the lower end of the heat exchanger is communicated with a fan while the upper end of the same is provided with a hollow emptying pipe communicated with the emptying pipe, and the middle emptying pipe is communicated with the fan through the heat exchanger. The efficient de-whitening device is high in de-whitening efficiency, low in manufacturing cost, convenient to maintain, stable in running and wide in adaptation range.

The invention relates to a whitewashing device, in particular to an intelligent whitewashing device for street trees. The intelligent whitewashing device for the street trees aims to achieve the technical aims of high whitewashing efficiency and high safety. According to the technical scheme, the intelligent whitewashing device for the street trees comprises a universal wheel car frame, a white slurry box, a water pump, a liquid guide tube, a hose, a fixed frame, a first guide rail, a control box, a power main switch, a three-position ship-type switch, a first switch and the like; the white slurry box is installed on the right portion of the upper side of the universal wheel car frame; the water pump is installed in the white slurry box; the top of the water pump is connected with the liquid guide tube; the top of the liquid guide tube is connected with the hose; and the fixed frame is provided on the left portion of the upper side of the universal wheel car frame. According to the intelligent whitewashing device for the street trees, the water pump can pump lime slurry into the hose, the lime slurry in the hose is sprayed onto a soft brush through a nozzle after flowing through aconnecting pipe, and then the lime slurry is brushed the soft brush brushes to tree trunks of the street tree, so that a user does not need to hold the brushes directly with hands for whitewashing, and the safety is enhanced.

The invention discloses a vertical candy puller machine which comprises a machine frame, first cylinders, a second cylinder, lifting guide columns, a transmission gearbox, first stirring rods and a second stirring rod. The first cylinders are arranged at the bottom of the machine frame, and the output ends of the first cylinders are connected with the transmission gearbox through the lifting guide columns. A driving stirring shaft and a driven stirring shaft are arranged in the transmission gearbox and both provided with a gear. Bearings are arranged between the driving stirring shaft and the transmission gearbox and between the driven stirring shaft and the transmission gearbox and clamped on bearing blocks. The first stirring rods are connected with the lower end of the driving stirring shaft and the lower end of the driven stirring shaft respectively through a stirring frame. A transmission chain wheel is disposed at the upper end of the driving stirring shaft. According to the vertical candy puller machine, the three stirring rods conducts stirring continuously and telescopically stretch, internal structures of candies are quickly changed, candy pulling efficiency is improved, practicality is high, and application and popularization are easy.

The invention provides an ammonia process desulfurization tower smoke white eliminating structure and a running method thereof. The investment is lower, running is more stable, the method is simpler,the white eliminating efficiency is high, the ammonia process desulfurization tower smoke white eliminating structure can be used in an existing ammonia process desulfurization tower device, and whiteeliminating transformation is conducted on the basis that an original ammonia process desulfurization tower structure is not changed. A circulation water solution pipeline is connected with a water washing circulation groove and a filter, the filter is connected with an air heat exchanger, the air heat exchanger is connected with a plate heat exchanger, and the plate heat exchanger is connected with the water washing circulation groove. The water washing circulation groove is connected with a water washing circulation pump and a demister flushing water pump. A cooling water pump is connectedwith a self-suction tank and a cooling water pipeline, and the cooling water pipeline is connected with the plate heat exchanger. A centrifugal draught fan is connected with the air heat exchanger, the air heat exchanger is connected with a steam heater, and the steam heater is connected with a hot air pipeline.

The invention relates to a production method of ultra-white polyvinyl chloride paste resin, in particular to a method for producing ultra-white polyvinyl chloride resin after suspension polymerization of vinyl chloride. Proceed as follows: 12 to 18 parts of ethanol, 1 to 3 parts of liquid carbolic acid, 4 to 8 parts of blue pigments, and 400 to 600 parts of deionized water are used to prepare whitening aids according to the mass ratio; The auxiliary agent is dispersed and diluted with deionized water, then added to the polyvinyl chloride slurry, stirred evenly, centrifuged, and dried to obtain a high whiteness polyvinyl chloride resin product. Compared with the existing technology, it has the following advantages: good whitening effect: 2), high whitening efficiency: because the whitening agent is a water-soluble high-dispersion solution, the blue pigment molecules are adsorbed by the folds of the resin particles, and in blue light- The phenomenon of yellowing of the resin is eliminated under the complementary effect of yellow light. Since the pigment molecules are fully dispersed in the slurry, the coloring efficiency is greatly improved; and the downstream processing cost of the later resin is reduced.

The rotary whitewashing device comprises a connecting bottom plate, a plurality of mounting blocks are fixedly connected to the side wall of the connecting bottom plate, a pair of supporting vertical rods are fixedly connected to the surface of the connecting bottom plate, sliding rings are movably arranged on the surfaces of the supporting vertical rods, and an arc-shaped supporting plate is arranged on one side of each sliding ring; the outer wall of the arc-shaped supporting plate is fixedly connected with a welding rod, the welding rod is fixedly connected with the surface of the sliding ring, the inner wall of the arc-shaped supporting plate is provided with a pair of limiting grooves, the limiting grooves are symmetrically formed, a buffer plate is arranged between the limiting grooves, and one end of the movable shaft abuts against the side wall of the buffer plate; compared with the prior art, through deformation of the elastic extrusion cavity, the internal pressure intensity of the elastic extrusion cavity can be changed, the flow speed of whitewashing liquid can be changed, the surfaces of trees can be sprayed according to different conditions, uniform spraying of the surfaces of the trees can be guaranteed, and the situation that the surfaces of the trees are sunken, so that whitewashing is locally omitted is reduced; and the uniformity of the coating can be ensured.

The invention discloses a trunk whitewashing machine, relates to the field of agricultural machines, and solves the problems of low whitewashing efficiency and a poor effect of an existing whitewashing machine. The employed technical solution is that the trunk whitewashing machine comprises a frame; the lower side of the frame is provided with wheels; a storage battery and a power system are arranged in the frame; the frame is provided with a feed box and a pressure pump; a suction pipe of the pressure pump is located in the feed box; the frame is also provided with two crank arms; the crank arms are arranged on the frame through rollers; the rollers are connected with the power system; the upper end of each crank arm is connected with a vertical sliding bar; each vertical sliding bar canvertically move relative to the corresponding crank arm; a spray box is arranged at the lower ends of the vertical sliding bars; the spray box is connected with the pressure pump; the inner side of the spray box is provided with a spray pipe; the spray pipe comprises an outer pipe and an inner pipe; at least one end of the outer pipe is unenclosed; the inner pipe is arranged in the unenclosed end;the outer pipe and the inner pipe can relatively slide; and each of the inner side of the outer pipe and the inner side of the inner pipe is provided with spray nozzles. The trunk whitewashing machine is capable of whitewashing a trunk from all sides, thereby increasing whitewashing efficiency and guaranteeing the whitewashing effect.

The invention relates to a production method of super-white polyvinyl chloride resin, and particularly relates to a method for producing super-white polyvinyl chloride resin through vinyl chloride suspension polymerization after-treatment. The method comprises the following steps of preparing a whitening assistant from the following raw materials in parts by weight: 12-18 parts of ethanol, 1-3 parts of liquid carbolic acid, 4-8 parts of a blue pigment substance and 400-600 parts of deionized water; dispersing and diluting the whitening assistant by using the deionized water; and adding the product to slurry polymerized by polyvinyl chloride, stirring evenly, centrifuging and drying to prepare a super-white polyvinyl chloride resin product. Compared with the prior art, the method has the advantages that the whitening effect is good; the whitening efficiency is high; the whitening assistant is a water-soluble high-dispersion solution and a blue pigment molecule is adsorbed by resin particle fold, so that the yellowing phenomenon is eliminated under the blue light-yellow light complementary action; the pigment molecule is fully dispersed in the slurry, so that the coloring efficiency is greatly improved; and the later resin downstream processing cost is reduced.

A method for stabilizing the whiteness of pulp belongs to the technical field of pulping and papermaking, by adding diethylenetriaminepentaacetic acid (DTPA) to the pre-knock tank, white water tank, and pulp mixing tank of alkaline hydrogen peroxide mechanical pulp respectively, so as to cover the The existing metal ions can achieve the purpose of stabilizing the color of alkaline hydrogen peroxide mechanical pulp (APMP pulp), improve the whitening efficiency of the subsequent added whitening agent; maintain the original color and brightness of the pulp, and can also reduce the subsequent process With the addition of whitening agent, the whiteness of the finished paper reaches above 80°SR, which improves the whitening efficiency of the whitening agent added in the subsequent process, reduces the amount of whitening agent used, and makes the finished paper bright and bright in color and delicate in hand. , can meet the requirements of printing, improve the grade of paper; also improve production efficiency, reduce production costs, and save energy.

The invention relates to a heat-transfer purifying device and especially relates to an efficient heat-transfer purifying device for corrosive flue gas and a processing method thereof. The efficient heat-transfer purifying device comprises a spray tower, wherein a tubular heat transfer core component is arranged in the spray tower; a flue gas outlet is formed above the spray tower; a spraying component is arranged under the tubular heat transfer core component; a flue gas inlet is formed under the spray tower; an ambient air inlet pipe which is connected with the upper end of the tubular heat transfer core component is arranged on an outer wall of the spray tower; an air pipe is arranged on the outer wall of the spray tower; one end of an ambient air outlet pipe is connected with the bottom end of the tubular heat transfer core component; the other end of the ambient air outlet pipe is connected with the part above the tubular heat transfer core component. The efficient heat-transfer purifying device for the corrosive flue gas and the processing method thereof can further increase the purifying efficiency and are in lower use cost.

The invention discloses a flue gas white smoke removal device, which comprises a desulfurization box, a thermostat is fixedly installed outside the desulfurization box, a fixed frame is installed on one side of the desulfurization box, a flue gas dredging channel is installed in the fixed frame, and one end of the flue gas dredging channel is fixedly connected with one side of the desulfurizationbox, the other end of the flue gas dredging channel is fixedly connected with the side, fixedly connected with the heat exchanger, of the bottom end of the heat exchanger, a cooler is fixedly installed at the top of the heat exchanger, and one side of the cooler is fixedly connected with one end of the conveying pipeline. In this scheme, after the industrial flue gas is desulfurized by the installed desulfurization box, the white smoke is filtered again through the filter, a heater is installed in the chimney, mixed flue gas becomes unsaturated flue gas, the white smoke cannot be generated inthe output chimney, the white smoke removal efficiency of the chimney is improved, and the pipeline is prevented from being blocked.

The invention relates to the technical field of tree whitening, in particular to a straight row tree whitening machine. The straight row tree whitening machine comprises a rail, a moving device and awhitening device; the moving device is arranged at the upper end of the rail, the whitening device is fixedly connected with the upper end of the moving device, thus the problems that the efficiency of manual whitening is low, according to the straight row tree whitening machine, tree whitening requires that all sides of the tree can be evenly coated with lime slurry, thus the action of whiteningcan be achieved, and labor need to bend down for a long time to work are solved.

The invention discloses an automatic sugar pulling machine which comprises a machine base, a supporting arm and a motor case. The supporting arm and the motor case are respectively arranged on the machine base in a vertical state, a fixed pull rod is arranged above a placement platform of the machine base and is fixed to the supporting arm, a first rotary shaft and a second rotary shaft are arranged on the motor case and are connected with a first pull rod and a second pull rod through rotary arms, a variable frequency motor for driving the first rotary shaft and the second rotary shaft to rotate is arranged in the motor case, and the first pull rod and the second pull rod are driven to synchronously rotate around the fixed pull rod under the effect of the variable frequency motor. By adopting the automatic sugar pulling machine, automatic control can be achieved through a control panel, constant stirring is performed around the fixed pull rod by adopting the two pull rods, the internal organization of sugar is promoted to change quickly, the sugar pulling efficiency is improved, and the automatic sugar pulling machine is simple in structure, convenient to operate, high in practicability and easy to popularize and use and is conductive to the improvement of product quality.

The invention discloses a whitewashing vehicle for municipal garden tree prevention and control. The whitewashing vehicle comprises a batching barrel, a barrel cover, a motor A, a feeding port, a fixing plate, a storage barrel, a pressure pump, a liquid conveying pipe, a fixing frame, a hydraulic rod, a driving device and a whitewashing brush; the barrel cover is mounted at the top end of the batching barrel; the motor A is mounted in the middle of the top end of the barrel cover; the feeding port is formed in the front portion of the barrel cover; the upper portion of the fixing plate is fixed to the side end of the batching barrel; the storage barrel is fixed to the lower portion of the fixing plate; the pressure pump is mounted on the front portion of the side end of the storage barrel; the liquid conveying pipe is mounted at the front end of the pressure pump; the fixing frame is fixed to the front end of the fixing plate; the hydraulic rod is mounted on the upper portion of the fixing frame; the driving device is mounted on the lower portion of the hydraulic rod; and the whitewashing brush is mounted at the front end of the driving device. The problems that at present, tree whitewashing mostly needs manual smearing, the labor cost is high, and efficiency is low are solved.

The invention discloses a rapid and convenient tree whitewashing device. The device comprises a supporting rod, a whitewashing board, a pull rod, a pressure water tank used for containing whitewashingliquid, wherein the rear side of the whitewashing board is a bendable stainless steel sheet, the front side of the whitewashing board is soft cloth, the periphery of the soft cloth is connected withthe periphery of the stainless steel sheet, a spray pipe is arranged inside the whitewashing board, the spray pipe is connected with the pressure water tank, the end part of the supporting rod is connected with one side of the whitewashing board, a connecting rod is arranged on the other side of the whitewashing board, a hanging buckle is arranged on the connecting rod, and the pull rod is matchedwith the hanging buckle. According to the device, the soft cloth can adsorb the whitewashing liquid sprayed out by the spray pipe, so that the uniformity of whitewashing is guaranteed, meanwhile, liquid waste can be avoided, due to the fact that the length of the supporting rod and the length of the connecting rod are long, clothes can be prevented from being sprayed, the trouble of cleaning is avoided, and the whitewashing efficiency is improved.

The invention belongs to the field of tree trunk whitening, and in particular relates to a tree trunk whitening equipment for municipal engineering, which includes a straight guide sleeve, a slider, a pin A, a gear, a hose, a nozzle and an arc guide sleeve, etc., wherein the straight There is a sliding sleeve vertically sliding on the guide rail installed on the side of one end of the guide sleeve; compared to the "a kind of whitening equipment for municipal engineering tree trunks" whose publication number is "CN 110328070 A", the quality of the large-diameter ring is all concentrated on the rod end to the The phenomenon of large gravity torque around the handle is caused. The present invention can replace the arc guide sleeves with different arc diameters according to the tree trunks with different diameters, so as to adjust the number of sliders in the straight guide sleeves after being guided by the arc guide sleeves. The number of sliding out, so as to ensure that the mass concentrated at the end of the straight guide sleeve matches the diameter of the sprayed tree during the spraying process of whitening agent. The smaller the diameter of the tree, the smaller the mass concentrated at the end of the straight guide sleeve, which is more convenient for operation. The more energy saved, the higher the whitening efficiency.