Boiling granulation dryer for biomass briquette

Abstract

The invention relates to the technical field of biomass briquette fuel production, and discloses a biomass briquette fuel boiling granulation dryer which comprises a bottom cylinder, a dryer body is installed at the top end of the bottom cylinder, an air filtering and heating assembly is installed on one side of the bottom cylinder, and an air inducing channel is installed at the top end of one side of the dryer body. An induced draft fan is installed at one end of the induced draft channel, a smoke exhaust pipe is installed on the induced draft channel, and a silencer is installed on the smoke exhaust pipe. According to the boiling granulation drying machine, the first motor can be driven to drive the rack to move, then the two air inlet discs are driven to rotate, the ratio of the leakage areas of the air inlets of the two air inlet discs is changed, the amount of cold and hot air entering the air temperature adjusting pipe is changed, the heat of the entering air is adjusted conveniently, and granulation drying is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of biomass briquette fuel production, and in particular relates to a boiling granulation dryer for biomass briquette fuel. Background Art

[0002] At present, boiling drying granulators are often used in the product granulation process in the pharmaceutical, food, chemical, pesticide, feed, fuel and other industries. Its working process is to first suspend the powdered material in a fluidized state and circulate it, and at the same time spray a mist binder to wet the powder in the container, so that the powder is condensed into loose small particles. While granulating, the hot air flow efficiently dries it, causing the water to evaporate continuously and the powder to solidify continuously to form uniform spherical particles.

[0003] The prior art discloses a granulation dryer, which includes an air intake system, a bottom cylinder, a dryer, an induced draft duct, an induced draft fan and a smoke exhaust pipe. The air intake system includes a primary and secondary efficiency filter, a high efficiency filter, and an upper air intake channel and a lower air intake channel arranged between the primary and secondary efficiency filter and the high efficiency filter. An electric heater and an air door are arranged in the lower air intake channel. The air door is arranged between the electric heater and the high efficiency filter. An explosion-proof device is arranged on the induced draft duct. The device can realize granulation of materials.

[0004] However, in the above technical solution, during the air intake process, the electric heater is powered on to heat the incoming air, and then the heated air is sent to the dryer for work. During the drying process, when different raw materials are granulated, the granulation temperature is different, and the temperature of the dryer is the same as the temperature of the hot air. When the electric heater heats the air, it is difficult to reach the air heating temperature, thereby affecting the granulation effect. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a biomass molded fuel boiling granulation dryer, which effectively solves the problem that when different raw materials are granulated, the granulation temperature is different and the hot air temperature is difficult to adjust, thus affecting the granulation effect.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A biomass briquette fuel boiling granulation dryer comprises a bottom cylinder, a dryer is installed at the top of the bottom cylinder, an air filtering and heating component is installed on one side of the bottom cylinder, an air induced passage is installed at the top of one side of the dryer, an induced draft fan is installed at one end of the induced draft passage, a smoke exhaust pipe is installed on the induced draft passage, and a muffler is installed on the smoke exhaust pipe;

[0008] The air filtering and heating assembly includes a body, a base is installed at the bottom end of the body, an external connecting pipe is installed on the side of the body close to the bottom cylinder, a high-grade filter is installed on the side of the external connecting pipe close to the bottom cylinder, a primary filter is installed on the side of the body away from the bottom cylinder, an air intake fan is installed inside the external connecting pipe, and the air intake fan is located on the side of the high-grade filter away from the bottom cylinder.

[0009] Preferably, an air temperature regulating tube is installed inside the body, and supporting legs are symmetrically installed at the bottom end of the air temperature regulating tube, and the supporting legs are fixedly connected to the inner bottom wall of the body. An internal connecting pipe is installed at one end of the high-grade filter close to the body, and the inner wall of the internal connecting pipe is in close contact with the outer wall of the air temperature regulating tube. An air temperature regulating unit is installed on the air temperature regulating tube.

[0010] Preferably, the air temperature regulating unit includes a hot air inlet pipe installed on one side of the air temperature regulating pipe and a cold air inlet pipe installed on the other side of the air temperature regulating pipe, a rotating groove is provided inside the hot air inlet pipe and inside the cold air inlet pipe, an air intake disk is rotatably installed inside the rotating groove, a connecting groove is provided on the side of the rotating groove close to the air temperature regulating pipe, a hot air inlet groove is provided on the side of the hot air inlet pipe close to the air temperature regulating pipe, the hot air inlet groove is connected with the inside of the air temperature regulating pipe, a heating coil is installed inside the hot air inlet groove, a cold air inlet groove is provided on the side of the cold air inlet pipe close to the air temperature regulating pipe, and the cold air inlet groove is not connected with the inside of the air temperature regulating pipe.

[0011] Preferably, a spiral tube groove is opened inside the air temperature regulating tube, and the spiral tube groove is opened in the air temperature regulating tube in a spiral shape. One end of the spiral tube groove is connected with the cold air inlet groove, and the other end of the spiral tube groove is opened with an air outlet groove. The air outlet groove runs through the side of the air temperature regulating tube close to the bottom tube, and a cold and hot air mixing unit is installed at one end of the air outlet groove.

[0012] Preferably, an air inlet is provided on one side of the air inlet disk, and air inlet holes are evenly provided on the side of the air inlet disk away from the air inlet. The air inlet disk inside the hot air inlet pipe and the air inlet disk inside the cold air inlet pipe are arranged at an angle of ninety degrees, and a temperature adjustment drive unit is installed on the top of the air inlet disk.

[0013] Preferably, the temperature regulating drive unit includes a rotating rod installed on the top of the air intake disk, a gear is installed on the top of the rotating rod, a rack is provided above the air temperature regulating tube, the rack is meshed with two gears, a fixed frame is installed on the top of the air temperature regulating tube, a slide groove is opened inside the fixed frame, a slider is installed on the side of the rack close to the fixed frame, the slider is slidably connected to the slide groove, a screw is rotatably connected to the end of the slide groove, the screw is threadedly connected to the slider, one end of the screw is fixedly connected to the output shaft of the first motor, the first motor is fixedly installed on the fixed frame, and a screw brake stop unit is installed on the top of the slider.

[0014] Preferably, the screw brake stop unit includes a guide groove opened at the top of the slide groove, the guide groove extends to the top of the fixed frame, a guide block is installed at the top of the slide block, the guide block is slidably installed in the guide groove, a movable groove is opened inside the guide block, a movable block is movably installed in the movable groove, a push rod is installed at the top of the movable block, a clamping rod is installed at the top of the push rod, a first spring is installed at the bottom end of the movable block, and the bottom end of the first spring is fixedly connected to the inner bottom wall of the movable groove.

[0015] Preferably, a transverse plate is installed at the top of the fixing frame, and grooves are equidistantly provided at the top of the transverse plate, and the clamping rods are adapted to the grooves.

[0016] Preferably, the hot and cold air mixing unit includes a guide pipe installed at one end of the air outlet groove, the guide pipe is arranged to be horizontally U-shaped, the guide pipe is located on a side of the air temperature regulating pipe close to the bottom tube, one end of the guide pipe is installed with an end block, one side of the end block is installed with a middle pipe, the middle pipe is located on the inner side of the air temperature regulating pipe, one end of the middle pipe is fixedly connected to the rotating shaft, one end of the rotating shaft is fixedly connected to the output shaft of the second motor, the second motor is fixedly installed on the air temperature regulating pipe, stirring blades are installed at equal angles on the outer wall of the middle pipe, side holes are evenly opened on the outer wall of the middle pipe, a block is movably installed inside the side hole, a ventilation groove is opened inside the block, the ventilation groove is connected with the inside of the middle pipe, ventilation holes are evenly opened on the outer wall of the ventilation groove, a limiting plate is installed at one end of the block away from the middle pipe, a second spring is installed on the side of the limiting plate close to the middle pipe, and one end of the second spring is fixedly connected to the outer wall of the middle pipe.

[0017] Preferably, a limit rotation groove is provided on one side of the end block close to the middle tube, and a limit rotation ring is installed on one side of the middle tube close to the end block, and the limit rotation ring is rotatably connected to the inside of the limit rotation groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) The present invention can change the ratio of the air inlet leakage areas of the two air inlet disks by arranging the two air inlet disks at an angle of ninety degrees, thereby changing the amount of hot and cold air entering the air temperature regulating tube, thereby facilitating the heat regulation of the incoming air and facilitating granulation and drying; at the same time, after the two air inlet disks rotate, the air inlet of one of the air inlet disks rotates toward the inside of the rotating groove, and at the same time, the air inlet of the other air inlet disk rotates toward the outside of the rotating groove, that is, the air inlet area on one side is reduced, and the air inlet area on the other side is increased by the same amount, thereby changing the ratio of the air intake on both sides, and after the air on one side is heated, one hot and one cold air is generated, and the ratio of the hot and cold air is changed by the air inlet disks on both sides, and heat is transferred after the hot and cold air meet. The different ratios of the hot and cold air change the air temperature after the hot and cold air are mixed, and then the drying temperature is changed, which facilitates the granulation and drying of biomass molded fuel.

[0020] 2) Hot air directly enters the air temperature regulating tube through the hot air inlet groove, while cold air needs to pass through the spiral tube groove. Since the spiral tube groove is tightly arranged in a spiral shape to the outside of the inner cavity of the air temperature regulating tube, it is convenient for heat transfer between hot air and cold air, temperature neutralization of hot air and cold air, and air temperature regulation.

[0021] 3) After the cold air enters the middle tube, it enters the air temperature regulating tube from the block, so that the cold air diffuses outward from the middle of the hot air, so that the cold and hot air come into contact with each other, thereby facilitating air heat regulation. At the same time, after it is turned on, the rotation of the middle tube drives the stirring blade to rotate, mixing the cold and hot air entering the air temperature regulating tube, thereby facilitating air temperature regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0023] In the attached picture:

[0024] Figure 1 It is a structural schematic diagram of the biomass briquette fuel boiling granulation dryer of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the machine body in the present invention;

[0026] Figure 3 It is a structural schematic diagram of the air filtering and heating component in the present invention;

[0027] Figure 4 It is a structural schematic diagram of the air temperature adjustment unit in the present invention;

[0028] Figure 5It is a structural schematic diagram of the temperature adjustment driving unit in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the screw brake stop unit in the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the air temperature regulating tube in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the cold and hot air mixing unit in the present invention;

[0032] In the figure: 1, bottom cylinder; 2, dryer; 3, air filter heating component; 301, body; 302, base; 303, primary filter; 304, external connecting pipe; 305, advanced filter; 306, air intake fan; 307, internal connecting pipe; 308, air temperature regulating pipe; 309, supporting leg; 310, air temperature regulating unit; 3101, hot air inlet pipe; 3102, cold air inlet pipe; 3 103, rotating slot; 3104, air inlet plate; 3105, hot air inlet slot; 3106, cold air inlet slot; 3107, connecting slot; 3108, heating coil; 3109, spiral tube slot; 31010, air inlet; 31011, air inlet hole; 31012, air outlet slot; 311, temperature adjustment drive unit; 3111, rotating rod; 3112, gear; 3113, rack; 3114, fixing frame; 31 15. slideway; 3116. slider; 3117. screw; 3118. first motor; 312. screw brake stop unit; 3121. guide groove; 3122. guide block; 3123. cross plate; 3124. groove; 3125. movable groove; 3126. movable block; 3127. push rod; 3128. clamping rod; 3129. first spring; 313. hot and cold air mixing unit; 3131. guide pipe; 3 132. end block; 3133. limit rotating groove; 3134. middle pipe; 3135. limit rotating ring; 3136. stirring blade; 3137. rotating shaft; 3138. second motor; 3139. side hole; 31310. stopper; 31311. ventilation groove; 31312. ventilation hole; 31313. limit plate; 31314. second spring; 4. induced draft channel; 5. induced draft fan; 6. silencer; 7. exhaust pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] Depend on Figure 1-Figure 3 As shown, the biomass briquette fuel boiling granulation dryer of the present invention comprises a bottom cylinder 1, a dryer 2 is installed at the top of the bottom cylinder 1, an air filtering and heating component 3 is installed on one side of the bottom cylinder 1, an air induced passage 4 is installed at the top of one side of the dryer 2, an induced draft fan 5 is installed at one end of the induced draft passage 4, a smoke exhaust pipe 7 is installed on the induced draft passage 4, and a muffler 6 is installed on the smoke exhaust pipe 7;

[0035] Among them, the air filtering and heating component 3 includes a body 301, a base 302 is installed at the bottom end of the body 301, an external connecting pipe 304 is installed on the side of the body 301 close to the bottom cylinder 1, a high-level filter 305 is installed on the side of the external connecting pipe 304 close to the bottom cylinder 1, a primary filter 303 is installed on the side of the body 301 away from the bottom cylinder 1, an air intake fan 306 is installed inside the external connecting pipe 304, the air intake fan 306 is located on the side of the high-level filter 305 away from the bottom cylinder 1, and an air temperature regulating tube 308 is installed inside the body 301.

[0036] During operation, the air intake fan 306 is turned on to drive the outside air to pass through the primary filter 303 and enter the body 301 for heating. The heated air is filtered again by the advanced filter 305 and enters the dryer 2, thereby removing impurities and dust in the hot air to ensure the quality of the product. The hot air enters the bottom cylinder 1 at a high speed, and blows the materials in the bottom cylinder 1 into the dryer 2 for drying and evaporation. The exhaust gas is discharged to the outside through the induced draft channel 4, the induced draft fan 5 and the exhaust pipe 7. There is no dust flying, the cleaning is thorough, and there is no cross contamination. It is a new structure integrating mixing, granulation and drying.

[0037] After the air inlet system 3 stops supplying air, the dried material falls into the bottom drum 1 again, and then the bottom drum 1 can be replaced to work again, which improves the work efficiency. After the material is dried, in order to lower its temperature, the damper in the lower air inlet channel can be closed, and cold air enters from the upper air inlet channel to cool the material in the bottom drum 1. The structure is simple and the operation is convenient.

[0038] See also Figures 3 to 5 In the present invention, support legs 309 are symmetrically installed at the bottom end of the air temperature regulating tube 308, and the support legs 309 are fixedly connected to the inner bottom wall of the body 301. An internal connecting pipe 307 is installed at one end of the high-level filter 305 close to the body 301. The inner wall of the internal connecting pipe 307 is in close contact with the outer wall of the air temperature regulating tube 308, and an air temperature regulating unit 310 is installed on the air temperature regulating tube 308.

[0039] In some embodiments, see Figures 5 to 8The above-mentioned air temperature regulating unit 310 includes a hot air inlet pipe 3101 installed on one side of the air temperature regulating pipe 308 and a cold air inlet pipe 3102 installed on the other side of the air temperature regulating pipe 308. The interior of the hot air inlet pipe 3101 and the interior of the cold air inlet pipe 3102 are both provided with a rotating groove 3103, and an air intake disk 3104 is rotatably installed inside the rotating groove 3103. A connecting groove 3107 is provided on the side of the rotating groove 3103 close to the air temperature regulating pipe 308, and a hot air inlet groove 3105 is provided on the side of the hot air inlet pipe 3101 close to the air temperature regulating pipe 308, and the hot air inlet groove 3105 is connected to the inside of the air temperature regulating pipe 308.

[0040] In order to be able to regulate the temperature of the air, optionally, a heating coil 3108 is installed inside the hot air inlet groove 3105; at the same time, a cold air inlet groove 3106 is opened on the side of the cold air inlet pipe 3102 close to the air temperature regulating pipe 308; it should be noted that the cold air inlet groove 3106 here is not connected to the inside of the air temperature regulating pipe 308.

[0041] In addition, the present invention provides a spiral tube groove 3109 inside the air temperature regulating tube 308. The spiral tube groove 3109 is spirally provided inside the air temperature regulating tube 308. One end of the spiral tube groove 3109 is connected to the cold air inlet groove 3106. The other end of the spiral tube groove 3109 is provided with an air outlet groove 31012. Hot air directly enters the air temperature regulating tube 308 through the hot air inlet groove 3105, while cold air needs to pass through the spiral tube groove 3109.

[0042] Since the spiral tube grooves 3109 are tightly arranged in a spiral shape to the outside of the inner cavity of the air temperature regulating tube 308, it is convenient for heat transfer between hot air and cold air, convenient for temperature neutralization of hot air and cold air, and convenient for air temperature regulation.

[0043] The air outlet groove 31012 penetrates to the side of the air temperature regulating tube 308 close to the bottom tube 1, and a hot and cold air mixing unit 313 is installed at one end of the air outlet groove 31012. An air inlet 31010 is opened on one side of the air inlet disk 3104, and air inlet holes 31011 are evenly opened on the side of the air inlet disk 3104 away from the air inlet 31010.

[0044] It should be noted that, optionally, the air inlet disk 3104 inside the hot air inlet pipe 3101 is arranged to be arranged at a ninety-degree angle with the air inlet disk 3104 inside the cold air inlet pipe 3102;

[0045] When the air inlet discs 3104 on both sides rotate at the same time, the air inlet 31010 of one of the air inlet discs 3104 rotates toward the inside of the rotating groove 3103, and at the same time, the air inlet 31010 of the other air inlet disc 3104 rotates toward the outside of the rotating groove 3103, that is, the air inlet area on one side is reduced, and the air inlet area on the other side is increased, thereby changing the ratio of the air intake on both sides. After the air on one side is heated, two kinds of air, one hot and one cold, are generated, and the ratio of the hot and cold air volumes is changed by the air inlet discs 3104 on both sides. Heat is transferred after the hot and cold air meet. The different ratios of the hot and cold air change the air temperature after the hot and cold air are mixed, and then the drying temperature is changed, which facilitates granulation drying.

[0046] When in use, the first motor 3118 is turned on to move the rack 3113, which in turn drives the two air inlet disks 3104 to rotate. The two air inlet disks 3104 are arranged at an angle of ninety degrees, so that the ratio of the leakage area of ​​the air inlets 31010 of the two air inlet disks 3104 changes, thereby changing the amount of cold and hot air entering the air temperature regulating tube 308, thereby facilitating the heat regulation of the incoming air and facilitating granulation and drying.

[0047] In some other embodiments, the present invention installs a temperature adjustment drive unit 311 at the top of the air inlet disk 3104; the temperature adjustment drive unit 311 includes a rotating rod 3111 installed at the top of the air inlet disk 3104, a gear 3112 is installed at the top of the rotating rod 3111, a rack 3113 is provided above the air temperature adjustment tube 308, the rack 3113 is meshed with the two gears 3112, a fixing frame 3114 is installed at the top of the air temperature adjustment tube 308, and the interior of the fixing frame 3114 A slide groove 3115 is provided, and a slider 3116 is installed on the side of the rack 3113 close to the fixed frame 3114. The slider 3116 is slidably connected to the slide groove 3115. The end of the slide groove 3115 is rotatably connected to a screw rod 3117. The screw rod 3117 is threadedly connected to the slider 3116. One end of the screw rod 3117 is fixedly connected to the output shaft of the first motor 3118. The first motor 3118 is fixedly installed on the fixed frame 3114. A screw brake stop unit 312 is installed on the top of the slider 3116.

[0048] The screw brake stop unit 312 includes a guide groove 3121 provided at the top of the slide groove 3115, the guide groove 3121 extends to the top of the fixing frame 3114, a guide block 3122 is installed at the top of the slider 3116, the guide block 3122 is slidably installed in the guide groove 3121, a movable groove 3125 is provided in the guide block 3122, a movable block 3126 is movably installed in the movable groove 3125, a top rod 3127 is installed at the top of the movable block 3126, a clamping rod 3128 is installed at the top of the top rod 3127, a first spring 3129 is installed at the bottom of the movable block 3126, and the bottom end of the first spring 3129 is connected to the movable groove 312 5, a cross plate 3123 is installed on the top of the fixing frame 3114, grooves 3124 are equidistantly provided on the top of the cross plate 3123, and the clamping rod 3128 is matched with the groove 3124. During the movement of the slider 3116, the clamping rod 3128 at the top of the slider 3116 is easily sunken into the groove 3124 at the top of the cross plate 3123 under the elastic force of the first spring 3129, thereby generating resistance to the movement of the slider 3116, thereby preventing the rotation inertia of the output shaft of the first motor 3118 from driving the screw rod 3117 to continue to rotate when the first motor 3118 stops operating, thereby improving the rotation stability of the air inlet disk 3104 and improving the temperature regulation effect.

[0049] The hot and cold air mixing unit 313 includes a guide tube 3131 installed at one end of the air outlet groove 31012, the guide tube 3131 is arranged in a horizontal U shape, the guide tube 3131 is located on the side of the air temperature regulating tube 308 close to the bottom tube 1, one end of the guide tube 3131 is installed with an end block 3132, one side of the end block 3132 is installed with a middle tube 3134, the middle tube 3134 is located on the inner side of the air temperature regulating tube 308, one end of the middle tube 3134 is fixedly connected to the rotating shaft 3137, the rotating shaft 3137 is fixedly connected to the rotating shaft 3137, and the rotating shaft 3137 is fixedly connected to the rotating shaft 3137. One end of the second motor 3138 is fixedly connected to the output shaft of the second motor 3138, and the second motor 3138 is fixedly installed on the air temperature regulating tube 308. The outer wall of the middle tube 3134 is provided with stirring blades 3136 at equal angles. The outer wall of the middle tube 3134 is evenly provided with side holes 3139. A stopper 31310 is movably installed inside the side hole 3139. A ventilation groove 31311 is provided inside the stopper 31310. The ventilation groove 31311 is connected to the inside of the middle tube 3134. The outer wall is evenly provided with vent holes 31312, a limit plate 31313 is installed on the end of the stopper 31310 away from the middle tube 3134, a second spring 31314 is installed on the side of the limit plate 31313 close to the middle tube 3134, one end of the second spring 31314 is fixedly connected to the outer wall of the middle tube 3134, a limit rotation groove 3133 is opened on the side of the end block 3132 close to the middle tube 3134, and a limit rotation ring 3135 is installed on the side of the middle tube 3134 close to the end block 3132 The limit ring 3135 is rotatably connected to the inside of the limit groove 3133. After the cold air enters the middle tube 3134, it enters the air temperature regulating tube 308 from the block 31310, so that the cold air diffuses outward from the middle of the hot air, so that the cold and hot air come into contact with each other, thereby facilitating air heat regulation. At the same time, after 3188 is turned on, the middle tube 3134 rotates to drive the stirring blade 3136 to rotate, mixing the cold and hot air entering the air temperature regulating tube 308, thereby facilitating air temperature regulation.

[0050] When temperature adjustment is required, the first motor 3118 is turned on to rotate the screw 3117. Since the screw 3117 is threadedly connected to the slider 3116, the slider 3116 is driven to rotate, and then the rack 3113 is driven to move. Since the rack 3113 is meshed with the gears 3112 on both sides, the two air inlet disks 3104 are driven to rotate. Since the two air inlet disks 3104 are arranged at an angle of ninety degrees, the ratio of the leakage area of ​​the air inlets 31010 of the two air inlet disks 3104 is changed, thereby changing the amount of hot and cold air entering the air temperature regulating tube 308. After the hot air and the cold air are mixed inside the air temperature regulating tube 308, the air temperature is changed, thereby facilitating the heat adjustment of the incoming air and facilitating the pelletizing and drying of the biomass molded fuel.

[0051] In the process of regulating the temperature of the air, a part of the air enters the air temperature regulating tube 308 from the hot air inlet pipe 3101, and is heated by the heating coil 3108 when the air passes through the hot air inlet groove 3105. The other part of the air enters the middle tube 3134 through the cold air inlet pipe 3102, the spiral tube groove 3109 and the guide tube 3131. Since the spiral tube groove 3109 is tightly arranged in a spiral shape to the outside of the inner cavity of the air temperature regulating tube 308, it is convenient for heat transfer between the hot air and the cold air, and the temperature neutralization of the hot air and the cold air is convenient, so as to facilitate the temperature regulation of the air.

[0052] Moreover, after the cold air enters the middle tube 3134, the air pressure inside the middle tube 3134 increases, pushing each block 31310 to move outward, so that the ventilation groove 31311 is connected with the inside of the air temperature regulating tube 308, so that the cold air enters the air temperature regulating tube 308, so that the cold air mixes with the hot air from the middle of the hot air, so as to facilitate the contact between the cold and hot air, so as to facilitate the air heat regulation, and at the same time, the second motor 3138 is turned on to rotate the middle tube 3134, driving the stirring blade 3136 to rotate, so as to mix the cold and hot air entering the air temperature regulating tube 308, so as to facilitate the air temperature regulation;

[0053] During the movement of the slider 3116, the locking rod 3128 at the top of the slider 3116 is easily sunk into the groove 3124 at the top of the cross plate 3123 under the elastic force of the first spring 3129, thereby generating resistance to the movement of the slider 3116, thereby preventing the rotational inertia of the output shaft of the first motor 3118 from driving the screw 3117 to continue rotating when the first motor 3118 stops operating, thereby facilitating the timely stagnation of the slider 3116, thereby improving the rotation stability of the air intake disk 3104, and then improving the temperature regulation effect.

[0054] It should be noted that although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biomass pelletizing fuel boiling granulation dryer, comprising a bottom cylinder (1), characterized in that: A dryer (2) is installed at the top of the bottom cylinder (1), an air filtering and heating assembly (3) is installed on one side of the bottom cylinder (1), an air induced passage (4) is installed at the top of one side of the dryer (2), an induced draft fan (5) is installed at one end of the induced draft passage (4), a smoke exhaust pipe (7) is installed on the induced draft passage (4), and a muffler (6) is installed on the smoke exhaust pipe (7); The air filtering and heating component (3) comprises a body (301), a base (302) is installed at the bottom end of the body (301), an external connecting pipe (304) is installed on the side of the body (301) close to the bottom cylinder (1), a high-grade filter (305) is installed on the side of the external connecting pipe (304) close to the bottom cylinder (1), a primary filter (303) is installed on the side of the body (301) away from the bottom cylinder (1), an air intake fan (306) is installed inside the external connecting pipe (304), and the air intake fan (306) is located on the side of the high-grade filter (305) away from the bottom cylinder (1).

2. The biomass briquette fuel boiling granulation dryer according to claim 1 is characterized in that: An air temperature regulating tube (308) is installed inside the machine body (301), and supporting legs (309) are symmetrically installed at the bottom end of the air temperature regulating tube (308), and the supporting legs (309) are fixedly connected to the inner bottom wall of the machine body (301). An internal connecting pipe (307) is installed at one end of the high-grade filter (305) close to the machine body (301), and the inner wall of the internal connecting pipe (307) is in close contact with the outer wall of the air temperature regulating tube (308), and an air temperature regulating unit (310) is installed on the air temperature regulating tube (308).

3. The biomass briquette fuel boiling granulation dryer according to claim 2 is characterized in that: The air temperature regulating unit (310) comprises a hot air inlet pipe (3101) installed on one side of the air temperature regulating pipe (308) and a cold air inlet pipe (3102) installed on the other side of the air temperature regulating pipe (308). A rotating groove (3103) is provided inside the hot air inlet pipe (3101) and inside the cold air inlet pipe (3102). An air inlet disk (3104) is rotatably installed inside the rotating groove (3103). A connecting groove (3107) is provided on one side of the rotating groove (3103) close to the air temperature regulating pipe (308). ), a hot air inlet groove (3105) is provided on the side of the hot air inlet pipe (3101) close to the air temperature regulating pipe (308), the hot air inlet groove (3105) is connected to the inside of the air temperature regulating pipe (308), a heating coil (3108) is installed inside the hot air inlet groove (3105), and a cold air inlet groove (3106) is provided on the side of the cold air inlet pipe (3102) close to the air temperature regulating pipe (308), and the cold air inlet groove (3106) is not connected to the inside of the air temperature regulating pipe (308).

4. The biomass briquette fuel boiling granulation dryer according to claim 3 is characterized in that: The air temperature regulating tube (308) is provided with a spiral tube groove (3109) inside. The spiral tube groove (3109) is spirally provided inside the air temperature regulating tube (308). One end of the spiral tube groove (3109) is connected to the cold air inlet groove (3106). The other end of the spiral tube groove (3109) is provided with an air outlet groove (31012). The air outlet groove (31012) extends to a side of the air temperature regulating tube (308) close to the bottom tube (1). A cold and hot air mixing unit (313) is installed at one end of the air outlet groove (31012).

5. The biomass briquette fuel boiling granulation dryer according to claim 3 is characterized in that: An air inlet (31010) is provided on one side of the air inlet disk (3104), and air inlet holes (31011) are evenly provided on a side of the air inlet disk (3104) away from the air inlet (31010). The air inlet disk (3104) inside the hot air inlet pipe (3101) and the air inlet disk (3104) inside the cold air inlet pipe (3102) are arranged at an angle of ninety degrees, and a temperature adjustment drive unit (311) is installed at the top of the air inlet disk (3104).

6. The biomass briquette fuel boiling granulation dryer according to claim 5 is characterized in that: The temperature adjustment driving unit (311) comprises a rotating rod (3111) mounted on the top of the air inlet disk (3104), a gear (3112) being mounted on the top of the rotating rod (3111), a rack (3113) being arranged above the air temperature adjustment tube (308), the rack (3113) being meshed with the two gears (3112), a fixing frame (3114) being mounted on the top of the air temperature adjustment tube (308), a sliding groove (3115) being arranged inside the fixing frame (3114), the rack (3113) being arranged close to the fixing frame (3114), and a sliding groove (3115) being arranged inside the fixing frame (3114). A slider (3116) is installed on one side of the fixed frame (3114), and the slider (3116) is slidably connected to the slide groove (3115). The end of the slide groove (3115) is rotatably connected to a screw rod (3117), and the screw rod (3117) is threadedly connected to the slider (3116). One end of the screw rod (3117) is fixedly connected to the output shaft of the first motor (3118), and the first motor (3118) is fixedly installed on the fixed frame (3114). A screw brake stop unit (312) is installed on the top of the slider (3116).

7. The biomass briquette fuel boiling granulation dryer according to claim 6 is characterized in that: The screw brake stop unit (312) comprises a guide groove (3121) provided at the top of the slide groove (3115), the guide groove (3121) extends to the top of the fixed frame (3114), a guide block (3122) is installed at the top of the slide block (3116), the guide block (3122) is slidably installed inside the guide groove (3121), a movable groove (3125) is provided inside the guide block (3122), a movable block (3126) is movably installed inside the movable groove (3125), a top rod (3127) is installed at the top of the movable block (3126), a clamping rod (3128) is installed at the top of the top rod (3127), a first spring (3129) is installed at the bottom end of the movable block (3126), and the bottom end of the first spring (3129) is fixedly connected to the inner bottom wall of the movable groove (3125).

8. The biomass briquette fuel boiling granulation dryer according to claim 7 is characterized in that: A transverse plate (3123) is installed at the top of the fixing frame (3114), and grooves (3124) are equidistantly formed at the top of the transverse plate (3123), and the clamping rod (3128) is adapted to fit the grooves (3124).

9. The biomass briquette fuel boiling granulation dryer according to claim 4, characterized in that: The cold and hot air mixing unit (313) comprises a flow guide pipe (3131) installed at one end of the air outlet groove (31012), the flow guide pipe (3131) is arranged in a horizontal U-shape, the flow guide pipe (3131) is located on a side of the air temperature regulating pipe (308) close to the bottom tube (1), an end block (3132) is installed at one end of the flow guide pipe (3131), a middle pipe (3134) is installed on one side of the end block (3132), the middle pipe (3134) is located on the inner side of the air temperature regulating pipe (308), one end of the middle pipe (3134) is fixedly connected to a rotating shaft (3137), one end of the rotating shaft (3137) is fixedly connected to an output shaft of a second motor (3138), the second motor (3138) is fixedly installed on the air temperature regulating pipe (308), and the middle pipe (3134) is fixedly connected to the output shaft of a second motor (3138). 4) is provided with stirring blades (3136) at equal angles, the outer wall of the middle tube (3134) is evenly provided with side holes (3139), a stopper (31310) is movably provided inside the side hole (3139), a venting groove (31311) is provided inside the stopper (31310), the venting groove (31311) is communicated with the inside of the middle tube (3134), venting holes (31312) are evenly provided on the outer wall of the venting groove (31311), a limiting plate (31313) is provided on one end of the stopper (31310) away from the middle tube (3134), a second spring (31314) is provided on the side of the limiting plate (31313) close to the middle tube (3134), and one end of the second spring (31314) is fixedly connected to the outer wall of the middle tube (3134).

10. The biomass briquette fuel boiling granulation dryer according to claim 9, characterized in that: A limit rotation groove (3133) is provided on one side of the end block (3132) close to the middle tube (3134), and a limit rotation ring (3135) is installed on one side of the middle tube (3134) close to the end block (3132), and the limit rotation ring (3135) is rotatably connected to the inside of the limit rotation groove (3133).

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