Powder humidifier and powder humidifying method
Technical Field
The invention relates to an accelerator and a humidifying method, in particular to a powder humidifier and a powder humidifying method.
Background
In the process of processing powder (such as starch), when the powder is too dry, water needs to be added for humidification to adjust the water content. The existing water inlet method is characterized in that powder and water are added from the upper end of a cylindrical container, the powder is added in an open mode, so that a dust raising phenomenon can be generated, a water adding nozzle is buried too deeply to cause unsmooth water adding in order to prevent the increase of the height of the powder, the water adding nozzle is designed to have a certain distance from the highest position of the powder, water is dripped into the powder in a dropping mode, and the dust raising phenomenon of the powder is aggravated by the aid of water generated by momentum, particularly when the height of the powder is low just beginning.
Disclosure of Invention
The invention provides a powder humidifier and a powder humidifying method, which can effectively prevent the dust raising phenomenon generated when water is added to adjust the water content, and solve the problem that the dust raising phenomenon is easily generated when powder is poured and water is dropped into the existing open type to humidify the powder.
The technical problem is solved by the following technical scheme: a powder humidifier, which comprises a cylindrical container, a rotating shaft extending into the cylindrical container and a stirring motor driving the rotating shaft to rotate, a powder inlet is arranged on the bottom wall of the cylindrical container, a floating plate is connected in the cylindrical container in a sealing and sliding way, the floating plate divides the cylindrical container into a mixing chamber positioned below the floating plate and a water storage chamber positioned above the floating plate, the floating plate is provided with a water seepage hole which is communicated with the water storage chamber and the mixing chamber, the lower end of the rotating shaft is provided with a stirring blade which is positioned in the mixing chamber, the floating plate is sleeved on the rotating shaft in a sliding way, the rotating shaft is provided with a chute extending along the vertical direction and a powder outlet channel extending along the vertical direction, the powder outlet channel is provided with a powder outlet hole communicated with the stirring chamber, the floating plate is provided with a sliding block connected in the sliding groove in a sliding manner, and the rotating shaft is matched with the sliding block through the sliding groove to drive the floating plate to rotate. When the humidifying powder is used, the powder material extends into the humidifying powder through the powder inlet, water is stored in the water storage chamber, the water enters the powder material through the water seepage holes and is uniformly stirred and humidified, and the humidified powder is exhausted through the discharge hole and the discharge channel. According to the technical scheme, the floating plate is pressed on the powder all the time in the use process, so that water can enter the powder in a permeating mode, the phenomenon that water inflow is not smooth due to the fact that the powder covers the water too deeply of an inlet is avoided, floating type injection water for the powder is achieved, and dust can not be generated. The powder is input into the sealed space, so that the dust flying phenomenon caused by pouring the powder is avoided. The smoothness of the top end of the high-powder material is not easy to cause the water seepage effect to be poor due to overlarge local fall. The rotating shaft is designed into a powder outlet channel, so that the structure is compact.
Preferably, the lower surface of the floating plate is provided with scrapers which radially extend along the circumferential direction of the cylindrical container. The reliability of scraping the powder top end when the floating plate rotates can be further improved.
Preferably, the stirring blade generates upward thrust to the material in the cylindrical container when the rotating shaft rotates forwards, the stirring blade generates downward thrust to the material in the cylindrical container when the rotating shaft rotates backwards, and the powder outlet is positioned below the stirring blade. The stirring blades can generate a boosting effect on the powder entering and outputting.
The powder feeding device comprises a powder feeding main pipe, wherein one end of the powder feeding main pipe is connected with a feeding pump, and the other end of the powder feeding main pipe is connected with a powder feeding port through a powder feeding branch pipe.
Preferably, the stirring motor is installed outside the bottom wall of the cylindrical container. The gravity center of the invention can be reduced, and the stability is improved.
The powder discharge device also comprises a material pumping pump, wherein the inlet end of the material pumping pump is connected with a connecting nut, the upper end of the rotating shaft is provided with an external thread section, the powder discharge channel penetrates through the end face of the thread section, and the material pumping pump is connected to the external thread section through the connecting nut and is detachably connected with the rotating shaft. When the humidifying is carried out, the connecting nut and the rotating shaft are separated, and when the powder is taken out, the connecting nut and the rotating shaft are connected.
A powder humidifying method is characterized in that a cylindrical container is divided into a liquid storage chamber and a mixing chamber located below the liquid storage chamber through a liftable floating plate, powder is conveyed into the mixing chamber from the bottom of the mixing chamber, and a shelf is supported by the powder and ascends and descends along with the ascending and descending of the height of the powder in the mixing chamber; the water is stored in the liquid storage chamber and enters the mixing chamber through the permeation hole to be added into the powder, and the humidified powder is pumped out through the rotating shaft.
Preferably, the top end of the powder in the mixing chamber is flattened by a scraper arranged on the lower surface of the floating plate and rotating along with the floating plate.
The invention has the following advantages: in the process of adding water into the powder, the dust is not easy to generate.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the powder mixing device comprises a cylindrical container 6, a powder inlet 61, a floating plate 62, a sliding block 63, a mixing chamber 64, a liquid storage chamber 65, a water seepage hole 66, a scraping blade 67, a cover 68, a material pumping pump 69, a connecting nut 691, a stirring motor 7, a rotating shaft 71, a threaded section 711, a stirring blade 72, a sliding groove 73, a powder outlet channel 74, a powder outlet hole 741, a powder inlet dry pipe 8, a powder inlet branch pipe 81 and a feeding pump 83.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, a powder humidifier includes a cylindrical container 6 and a stirring motor 7.
The cylindrical container 6 is circular. The bottom wall of the cylindrical container 6 is provided with a plurality of powder inlets 61. The powder inlet 61 is communicated with one end of the powder inlet dry pipe 8 through a powder inlet branch pipe 81. The other end of the powder feeding dry pipe 8 is connected with the outlet end of the feeding pump 83. A floating plate 62 is hermetically and slidably connected to the cylindrical container 6. The floating plate 62 divides the cylindrical container 6 into a mixing chamber 64 and a liquid storage chamber 65. The mixing chamber 64 is located below the floating plate 62. The floating plate 62 can fall under its own weight. The reservoir 65 is located above the floating plate 62. The floating plate 62 is provided with a plurality of water seepage holes 66. The weep hole 66 communicates the reservoir and the mixing chamber. The lower surface of the floating plate 62 is provided with a plurality of wipers 67. The wipers 67 extend radially distributed along the circumference of the cylindrical container 6.
The stirring motor 7 is installed outside the bottom wall of the cylindrical vessel 6. A power output shaft of the stirring motor 7 is connected with a rotating shaft 71. The rotation shaft 71 extends in the vertical direction. The shaft 71 extends into the cylindrical container 6. The lower end of the rotating shaft 71 is provided with a stirring blade 72. The stirring blade 72 generates an upward blowing airflow when the rotation shaft 71 rotates forward, and the stirring blade 72 generates a downward blowing airflow when the rotation shaft 71 rotates backward. The upper end of the rotating shaft 71 is provided with a threaded section 711. The rotating shaft 71 is provided with a powder outlet passage 74 extending in the vertical direction. The powder outlet passage 74 penetrates the upper end surface of the rotating shaft 71. The powder outlet channel 74 is provided with a powder outlet 741 communicated with the stirring chamber. The powder outlet 741 is located below the stirring blade 72. The shaft 71 is provided with a slide groove 73 extending in the vertical direction.
The floating plate 62 is slidably fitted over the rotating shaft 71. The floating plate 62 is provided with a slider 63 slidably connected in the chute. The rotation shaft 71 drives the floating plate 62 to rotate through the sliding slot 73 and the sliding block 63.
A cap 68 is provided on the cylindrical container 6. The lid is provided with a pump 69. The inlet end of the pump 69 is connected to a coupling nut 691.
The method for humidifying the powder through the invention is that the powder is conveyed into the mixing chamber 64 through the feeding main pipe 8, the powder inlet branch pipe 81 and the powder inlet 61 through the feeding pump 83, and the floating plate 62 is lifted by the accumulation and the rise of the powder in the mixing chamber 64. The water is poured into the liquid storage chamber 65 and permeates into the powder in the mixing chamber 64 through the water seepage holes 66. The stirring motor 7 drives the rotating shaft 71 to rotate forward, the rotating shaft drives the stirring blades 72 and the floating plate 62 to rotate forward, and the stirring blades 72 generate a stirring effect on the powder and simultaneously drive the powder to ascend. The wiper 67 serves to flatten the top of the powder as the float plate 62 rotates.
The method for taking out the powder after humidification is completed comprises the following steps: the rotation of the shaft is stopped and the coupling nut 691 is sealingly coupled to the threaded segment 711. Then, the pump 69 is started to pump the powder in the mixing chamber through the powder outlet 741, the powder outlet channel 74, the connecting nut 691 and the pump 69.