[0048] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the appendixes of the embodiments of the present invention. Figure 1-12 , to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.
[0049] like figure 1 Shown: a material drying system utilizing the waste heat of gas boiler exhaust gas, including a drying mechanism 4, the drying mechanism 4 includes an external thermal insulation cylinder 6 and a rotary drying cylinder 5 arranged in the external thermal insulation cylinder 6 , the inner wall of the rotary drying cylinder 5 is provided with a lifting plate, the outer thermal insulation cylinder 6 is provided with a rotating guide bracket for supporting the rotary drying cylinder 5, and the external thermal insulation cylinder 6 is connected to the rotary drying cylinder. A heating cavity is formed between the bodies 5;
[0050] One end of the drying mechanism 4 is provided with a power case 3, and the power case 3 is provided with a power component that drives the rotation of the rotary drying cylinder 5, and the other end of the drying mechanism 4 is provided with a material collection device;
[0051] The heating chamber in the drying mechanism 4 is communicated with the boiler exhaust waste heat insulation box 2. The upper and lower ends of the boiler exhaust waste heat insulation box 2 are provided with ventilation nozzles 201. The drying mechanism 4 is insulated with the boiler exhaust waste heat. A first fan 21 is provided between the boxes 2 .
[0052] The exhaust gas is used to pass through the boiler exhaust waste heat insulation box 2, so that the air in the boiler exhaust waste heat insulation box 2 is heated, and then directly transported to the heating chamber to heat the rotary drying cylinder 5, so as to prevent the exhaust gas from being dried and filtered. The heating method in the cylinder saves the drying process in the exhaust gas treatment process, and at the same time avoids excessive heat loss during the treatment process.
[0053] According to an embodiment of the present invention, as figure 2 , 5 , as shown in 6,
[0054] One end of the rotary drying cylinder 5 is provided with a feed pipe shaft 51 extending out of the outer thermal insulation cylinder 6 , and the other end of the rotary drying cylinder 5 is provided with an outlet extending out of the external thermal insulation cylinder 6 . The feed pipe shaft 52, the feed pipe shaft 51 extends into the power case 3 and is driven to rotate by a power assembly, the power assembly includes a driven gear 511 provided on the feed pipe shaft 51, the driven gear 511 Meshing with the driving gear 311 , the driving gear 311 is connected with the first motor 31 .
[0055] The outer port of the discharge pipe shaft 52 is provided with a detachable cover plate 521, and the feed pipe shaft 51 is provided with a screw feed shaft 32, and the screw feed shaft 32 is far away from the rotary drying cylinder. One end of the body 5 is connected to the second motor 33 fixed outside the power case 3. The feed pipe shaft 51 is provided with a feed port 512 on the side of one end close to the second motor 33. The upper port of the power case 3 is provided with a hinged seal. cover plate 34.
[0056] The design of the material feeding and discharging structure of the rotary drying cylinder 5 is reasonable and convenient, and the use is convenient.
[0057] According to another embodiment of the present invention, as figure 1 and figure 2 shown,
[0058] The rotating guide bracket includes an annular guide rail 61 arranged on the inner wall of the outer heat preservation cylinder 6, and the outer wall of the rotary drying cylinder 5 is provided with an annular guide wheel 53 corresponding to the annular guide rail 61. The annular guide rail 61 There is a groove 611 matched with the annular guide wheel 53 on its inner wall.
[0059] Wherein, the diameter of the annular guide wheel 53 near the end of the discharge pipe shaft 52 is smaller than the diameter of the annular guide wheel 53 near the end of the feed pipe shaft 51 .
[0060] The annular guide 61 and the annular guide wheel 53 cooperate to improve the rotation stability of the rotary drying cylinder 5, improve the smooth operation of the overall device, increase the service life of the device, and reduce the maintenance frequency.
[0061] In one embodiment of the present invention, as Figure 7 , 8 shown,
[0062] Wherein, the boiler exhaust waste heat insulation box 2 is provided with a plurality of S-shaped ventilation pipes 202 arranged at intervals. The discharge pipe is connected, and the lower port of the S-shaped ventilation pipe 202 protrudes from the other side of the boiler exhaust waste heat incubator 2 to communicate with the exhaust gas purification equipment. The S-shaped ventilation pipe 202 is provided with cooling fins 203, so An air blocking component 22 is provided in the boiler exhaust waste heat insulation box 2 near the vent pipe opening 201 at the lower end.
[0063] Wherein, the boiler exhaust waste heat insulation box 2 is provided with a clamp 204 for fixing the S-shaped ventilation pipe 202 .
[0064] The S-shaped ventilation pipe 202 in the boiler exhaust waste heat insulation box 2 can increase the area of air heating. In addition, the heat dissipation fins 203 on the S-shaped ventilation pipe 202 play a better heat conduction role, and more effectively heat the boiler exhaust waste heat insulation box. 2 air inside.
[0065] In one embodiment of the present invention, as Figure 9 shown,
[0066] The air choke assembly is an S-shaped baffle plate 221, and there are several V-shaped baffle plates 222 on both sides of the S-shaped baffle plate 221. The V-shaped baffle plate 222 is an S-shaped baffle plate 222. The baffles 221 are symmetrically distributed on the left and right in the center, the openings of the V-shaped baffles 222 are all facing the S-shaped baffles 221, and the S-shaped baffles 221 and the V-shaped baffles 222 are connected by connecting rods. 220 is fixed in the boiler exhaust waste heat incubator 2.
[0067] In another embodiment of the present invention, as Figure 10 shown,
[0068] Wherein, the air choke assembly 22 includes a wave-shaped panel 224 formed by a plurality of V-shaped plates 223 arranged continuously and laterally, and through holes 225 are provided on both sides of the V-shaped plates 223 .
[0069] In one embodiment of the present invention, as figure 2 , 3 , shown in 4
[0070] Wherein, the heating chamber is provided with an air equalizing component matched with the boiler exhaust waste heat incubator 2 .
[0071] Wherein, the air equalizing component includes a suction pipe 62 arranged at the inner bottom end of the external thermal insulation cylinder 6 , an air supply pipe 63 is arranged above the suction pipe 62 , the suction pipe 62 and the air supply pipe 63 Both run through the annular guide rail 61 and are fixed by the annular guide rail 61. One end of the air supply pipe 63 close to the boiler exhaust waste heat incubator 2 is communicated with the first fan 21, and one end of the suction pipe 62 away from the boiler exhaust waste heat incubator 2 is connected to the first fan 21. The air inlets of the exhaust fan 64 outside the external thermal insulation cylinder 6 are communicated with each other, and the sides of the suction pipe 62 and the air supply pipe 63 facing the rotary drying cylinder 5 are provided with notches 65 .
[0072] Wherein, the air supply pipes 63 are a plurality of which are arranged at intervals around the rotary drying cylinder 5 .
[0073] Wherein, the diameter of the air supply pipe 63 decreases sequentially from one end close to the first fan 21 to the other end of the notch 65 , and the suction pipe 62 has a diameter from one end close to the exhaust fan 64 to the other end of the notch 65 . The caliber is reduced accordingly.
[0074] The hot air in the boiler exhaust waste heat insulation box 2 is evenly blown to the surface of the rotary drying cylinder 5 through the air supply pipe 63, so that the materials in the rotary drying cylinder 5 can be heated more uniformly, and the rotary drying cylinder 5 can be heated more uniformly. The lifting plate in 5 can continuously lift the material, fully contact with the rotary drying cylinder 5, and play the role of drying. The air in the heating chamber is sucked out through the suction pipe 62 to ensure the heating chamber. Continuously supply hot air.
[0075] In one embodiment of the present invention, as figure 1 , 11 shown,
[0076] Wherein, the air outlet of the exhaust fan 64 is provided with a Y-shaped connecting pipe 641, and one of the bifurcated pipes of the Y-shaped connecting pipe 641 is communicated with the supplementary air pipe port 35 on the side of the power case 3. The air pipe opening 35 is provided with a valve, the spiral blade of the screw feed shaft 32 is provided with micro air holes, and the discharge pipe shaft 52 is provided with an air pressure gauge 522 and an air valve 523 .
[0077] The moist and hot air in the rotary drying cylinder 5 is discharged in time through the air valve 523, because the temperature in the heating chamber is higher than the outside temperature, one of the bifurcated pipes of the Y-shaped connecting pipe 641 is connected to the side of the power case 3. The air duct port 35 is connected, and through the feeding port 512 and the micro air holes provided on the helical blade, air with relatively dry relative temperature is supplied into the rotary drying cylinder 5 to improve the drying efficiency and effect.
[0078] In one embodiment of the present invention, as figure 1 shown,
[0079] Wherein, the material collection device includes a cyclone separation collector 7, the air inlet of the cyclone separation collector 7 is connected through the air outlet of the second fan 72, and the air suction port of the second fan 72 is provided with a detachable method The blue connecting pipe 71 , the second fan 72 is fixed on the frame 73 on the external thermal insulation cylinder 6 .
[0080] Wherein, the bottom end of the cyclone separator 7 is provided with a temporary storage bin 701 , and the bottom port of the temporary discharge bin 701 is provided with a material valve 702 .
[0081]Working method of the present invention: when in use, the heating chamber and the rotary drying cylinder 5 are preheated by the function of the boiler exhaust waste heat incubator 2, and then the sealing cover plate 34 is opened to remove the steel slag micropowder to be dried from the inlet. The material port 512 is put into the feeding pipe shaft 51 and the material is not transported into the rotary drying cylinder 5 by the action of the screw feeding shaft 32. After transporting a certain amount of material, the sealing cover 34 is sealed and closed, and then the first The motor 31 then drives the rotary drying cylinder 5 to start to rotate. During the rotation of the rotary drying cylinder 5, the hot air is continuously estimated into the heating chamber through the action of the first fan 21, and the air in the boiler exhaust waste heat incubator 2 The choke assembly 22 reduces the speed of the air flowing out through air baffles or air chokes, or a combination of the two, thereby prolonging the time that the air stays in the boiler exhaust waste heat incubator 2 and improving the air heating efficiency. Effect and efficiency, when the hot air is sent into the heating chamber, the hot air is blown onto the rotary drying cylinder 5 through the air supply pipe 63, and the heating uniformity is improved through the spaced notches 65, thereby improving the drying effect and efficiency. At the same time, the air in the heating chamber is exhausted through the suction pipe 62 to ensure that the hot air can be continuously fed into the heating chamber.
[0082] In the process of heating and drying, the air pressure in the rotary drying cylinder 5 is known through the barometer 522, and after heating one end for a period of time, the damp and hot steam is discharged through the air valve 523, and then the power is connected to the power supply through one of the branch pipes of the Y-shaped connecting pipe 641. The air supply pipe port 35 on one side of the chassis 3 is connected, and through the feeding port 512 and the micro air holes on the spiral blade, the air with relatively dry relative temperature is supplied into the rotary drying cylinder 5 to improve the drying efficiency and effect. .
[0083] After the material is dried, it can be adjusted by the valve to prevent the exhaust gas from continuing to pass into the S-shaped ventilation pipe 202, and pass the normal temperature gas into the heating chamber to assist the material to cool down. When the material needs to be output, remove the cover plate 521. Down, the rotary drying cylinder 5 is communicated with the cyclone collector 7 through the flange connection pipe 71, the sealing cover 34 is opened at the same time, the second fan 72 is turned on, and a negative pressure is formed in the cyclone collector 7, and the material enters the In the cyclone separator 7, the cyclone separator 7 can separate particles with a diameter larger than 10µm, and the particle size of the steel slag micropowder is 80-150µm. The action of entering the cyclone separator 7 can realize the material collection. The upper end of the cyclone separator 7 The air outlet can be connected to a dust bag filter to avoid the escape of trace amounts of fine powder.
[0084] In the present invention, unless otherwise expressly specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or a The indirect connection through an intermediate medium may be the internal communication of two elements or the interaction relationship between the two elements. Unless otherwise clearly defined, those of ordinary skill in the art can understand the above terms in the present invention according to specific circumstances. specific meaning in .
[0085] The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.
