A heat exchange type zinc oxide pneumatic pipeline conveying device

Abstract

The invention relates to the technical field of zinc oxide pipeline transportation, and specifically to a heat exchange type zinc oxide pneumatic pipeline transportation device; it comprises a conveying pipe and a feed pipe and a discharge pipe connected to the outer wall of the conveying pipe; the outer wall of the conveying pipe is connected to an exhaust pipe and an air intake pipe; the feed pipe and the discharge pipe are located between the exhaust pipe and the air intake pipe in the axial direction of the conveying pipe; an air extraction pump and a cooling component are connected in series between the air intake pipe and the exhaust pipe; the feed pipe is arranged close to the exhaust pipe in the axial direction of the conveying pipe; the discharge pipe is arranged close to the air intake pipe in the axial direction of the conveying pipe; the invention forms a spiral flow channel by arranging a spiral plate in the conveying pipe, so that the zinc oxide and cold air flow along the spiral flow channel, so that the zinc oxide is cooled during the transportation process, and at the same time, the transportation path of the zinc oxide and the cold air in the conveying pipe is greatly extended, and the cold air and the zinc oxide are better mixed, thereby improving the cooling effect of the zinc oxide during the transportation process.

Description

Technical Field

[0001] The invention relates to the technical field of zinc oxide pipeline transportation, in particular to a heat exchange type zinc oxide pneumatic pipeline transportation device. Background Art

[0002] Zinc oxide is an inorganic substance, an oxide of zinc. It is insoluble in water, but soluble in acid and strong alkali. Zinc oxide is a commonly used chemical additive, widely used in the production of plastics, silicate products, synthetic rubber, lubricants, paints and coatings, ointments, adhesives, foods, batteries, flame retardants and other products. Zinc oxide has a large energy band gap and exciton binding energy, high transparency, and excellent room-temperature luminescence performance. It is used in liquid crystal displays, thin-film transistors, light-emitting diodes and other products in the semiconductor field. In addition, microparticles of zinc oxide as a nanomaterial have also begun to play a role in related fields.

[0003] The existing steps for preparing zinc oxide are as follows: first, a zinc ingot prepared by electrolysis is heated and melted, and then placed in a high-temperature resistant crucible to melt and vaporize it at high temperature, and hot air is introduced for oxidation. The generated zinc oxide is cooled and cyclone separated, and fine particles are captured with a cloth bag to obtain a finished zinc oxide product; the prepared zinc oxide powder needs to be transported to a packaging area by a pipeline for bagging and packaging. In order to prevent the zinc oxide from scalding the packaging bag during subsequent packaging, the zinc oxide needs to be cooled separately before being transported by the pipeline for packaging, which also indirectly affects the production efficiency of zinc oxide.

[0004] In view of this, in order to overcome the above technical problems, the present invention proposes a heat exchange zinc oxide pneumatic pipeline conveying device to solve the above technical problems. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the present invention proposes a heat exchange type zinc oxide pneumatic pipeline conveying device. The present invention forms a spiral flow channel by arranging a spiral plate in the conveying pipe, so that the zinc oxide and cold air flow along the spiral flow channel, so that the zinc oxide is cooled during the conveying process, thereby ensuring the production efficiency of zinc oxide. At the same time, the conveying path of the zinc oxide and the cold air in the conveying pipe is greatly extended, and the cold air and the zinc oxide are better mixed, thereby improving the cooling effect of the zinc oxide during the conveying process.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a heat exchange type zinc oxide pneumatic pipeline conveying device described in the present invention comprises a conveying pipe and a feed pipe and a discharge pipe connected to the outer wall of the conveying pipe; the outer wall of the conveying pipe is connected to the exhaust pipe and the intake pipe; the feed pipe and the discharge pipe are located between the exhaust pipe and the intake pipe in the axial direction of the conveying pipe; an air extraction pump and a cooling component are connected in series between the intake pipe and the exhaust pipe; the feed pipe is arranged close to the exhaust pipe in the axial direction of the conveying pipe; the discharge pipe is arranged close to the intake pipe in the axial direction of the conveying pipe; both ends of the conveying pipe are sealed; the axial center of the conveying pipe passes through and is connected to the center rod; a spiral plate is arranged between the outer wall of the center rod and the inner wall of the conveying pipe; the inner edge of the spiral plate is in contact with the outer wall of the center rod; the outer edge of the spiral plate is in contact with the inner wall of the conveying pipe; the material entering from the feed pipe flows to the discharge pipe along the spiral flow channel formed by the spiral plate; the inner wall of the conveying pipe is fixedly connected to the filter screen; the filter screen is located between the discharge pipe and the intake pipe in the axial direction of the conveying pipe.

[0007] Preferably, the filter is arranged close to the discharge pipe in the axial direction of the conveying pipe; the filter is rotatably and sealingly connected to the center rod; the outer wall of the center rod is fixedly connected to a scraper; a plurality of scrapers are evenly distributed on the outer wall of the center rod; the scraper is in contact with the filter; the end of the conveying pipe away from the suction pipe is fixedly connected to the first motor; the output shaft of the first motor is fixedly connected to one end of the center rod; the center rod is rotatably and sealingly connected to the conveying pipe; the filter can be scraped during the rotation of the center rod.

[0008] Preferably, the scraper corresponds to the position of the discharge pipe in the axial direction of the conveying pipe; during the rotation of the center rod, the filter screen can be scraped and the material can be thrown into the discharge pipe at the same time.

[0009] Preferably, one end of the spiral plate close to the first motor rests against the inner wall of the end of the conveying pipe; one end of the spiral plate away from the first motor extends to the scraper position; one end of the spiral plate away from the first motor is connected to the outer wall of the center rod; the center rod can assist in material transportation by driving the spiral plate to rotate.

[0010] Preferably, the inner wall of one end of the conveying pipe close to the first motor is inclined; the spiral pitch of the spiral plate changes cyclically as the spiral plate moves close to one end of the first motor.

[0011] Preferably, a center hole is provided at the end of the center rod away from the first motor; a slide groove is provided at the corresponding position of the outer wall of the center rod and the inner side of the spiral plate; the slide groove is connected to the center hole; a slider is slidably connected in the slide groove; the end of the spiral plate away from the first motor is rotatably connected to the slider through a rotating block; the sliding rod is connected to the sliding seal in the center hole; the end of the sliding rod close to the first motor is fixedly connected to the slider; the sliding rod can move along the center hole to push the spiral plate toward the first motor.

[0012] Preferably, the conveying tube is rotatably connected to the locking disk at one end away from the first motor; the end of the center rod is fixedly connected to the center of the locking disk; an L-shaped groove is provided between the inner wall of the center hole and the end face of the locking disk; the L-shaped block is connected to the sliding seal in the L-shaped groove; the side of the L-shaped block facing away from the center hole is connected to the wall of the L-shaped groove by a spring; the cross-sections of the center hole and the sliding rod are both square; a locking groove is provided on the side of the sliding rod close to the L-shaped block; a plurality of the locking grooves are distributed along the length direction of the sliding rod; and the end of the L-shaped block can be inserted into the corresponding locking groove under the push of the spring.

[0013] Preferably, the conveying pipe is composed of a middle section pipe and end pipes at both ends of the middle section pipe; the two end pipes are connected to the same bracket by bolts; the end pipes are rotatably sealed and connected to the middle section pipe; the exhaust pipe and the feed pipe are connected to the outer wall of the end pipe close to the first motor; the intake pipe and the discharge pipe are connected to the outer wall of the end pipe away from the first motor; the outer wall of the middle section pipe is fixedly connected to the outer gear ring; the outer edge of the outer gear ring is engaged with the transmission connecting gear; the center of the gear is connected to the output shaft of the second motor; the outer wall of the second motor is fixedly connected to the outer wall of the end pipe; the second motor drives the middle section pipe to rotate through the gear and the outer gear ring; the rotation direction of the middle section pipe is the same as the rotation direction of the spiral plate.

[0014] Preferably, the outer gear ring is arranged on the outer wall of the middle section tube close to the first motor; the outer wall of the middle section tube is evenly provided with heat sinks along the axial direction; and the heat sinks are ring-shaped.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention forms a spiral flow channel by arranging a spiral plate in the conveying pipe, so that the zinc oxide and cold air flow along the spiral flow channel, so that the zinc oxide is cooled during the conveying process, thereby ensuring the production efficiency of zinc oxide. At the same time, the conveying path of the zinc oxide and the cold air in the conveying pipe is greatly extended, and the cold air and the zinc oxide are better mixed, thereby improving the cooling effect of the zinc oxide during the conveying process.

[0017] 2. In the present invention, after the end of the spiral plate close to the first motor circulates through two limit points, the spiral plate is compressed and its own elastic force cooperates, so that the spiral pitch of the spiral plate cyclically increases and decreases. During the change of the spiral pitch of the spiral plate, the zinc oxide accumulated or stuck in the spiral flow channel can be squeezed, so that the zinc oxide agglomerated or accumulated in the spiral flow channel is compressed and loosened, so that the zinc oxide can be transported more stably in the delivery pipe, further improving the stability of zinc oxide transportation.

[0018] 3. The present invention controls the axial position of the end of the spiral plate away from the first motor in the conveying pipe, thereby changing the number of spiral turns of the spiral plate between the feed pipe and the discharge pipe, and then adjusting the spiral flow channels with different numbers of turns according to the transportation and heat exchange requirements of zinc oxide, thereby improving the application range of the pneumatic pipe conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Figure 1 is a stereogram of the present invention;

[0021] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 yes Figure 1 The enlarged view of point B in the middle;

[0023] Figure 4 It is a stereoscopic diagram of the middle section pipe in the present invention;

[0024] Figure 5 is a stereoscopic view of the end tube in the present invention;

[0025] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0026] Figure 7 is a three-dimensional diagram of the spiral plate in the present invention;

[0027] Figure 8 It is a position diagram of the scraper blade in the present invention;

[0028] Fig. 9 is a cross-sectional view of the present invention;

[0029] Fig.10 yes Fig. 9 The enlarged view of point D in the middle;

[0030] Fig.11 yes Fig. 9 Enlarged view of point E in the middle;

[0031] Fig.12 yes Fig. 9 The enlarged view of F in the middle;

[0032] Fig.13 yes Fig. 9 Enlarged view of point G in the middle.

[0033] In the figure: conveying pipe 1, middle pipe 11, end pipe 12, feed pipe 13, discharge pipe 14, exhaust pipe 15, intake pipe 16, outer gear ring 17, gear 18, second motor 19, center rod 2, filter screen 21, scraper 22, first motor 23, center hole 24, slide groove 25, slider 26, spiral plate 3, spiral flow channel 31, rotating block 32, slide rod 4, lock groove 41, lock plate 5, L-shaped groove 51, L-shaped block 52, spring 53, heat sink 6. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 13 As shown, the present invention includes the following embodiments:

[0036] Embodiment 1:

[0037] A heat exchange type zinc oxide pneumatic pipeline conveying device, comprising a conveying pipe 1 and a feed pipe 13 and a discharge pipe 14 connected to the outer wall of the conveying pipe 1; the outer wall of the conveying pipe 1 is connected to an exhaust pipe 15 and an air intake pipe 16; the feed pipe 13 and the discharge pipe 14 are located between the exhaust pipe 15 and the air intake pipe 16 in the axial direction of the conveying pipe 1; an air pump and a cooling component are connected in series between the air intake pipe 16 and the exhaust pipe 15; the feed pipe 13 is arranged close to the exhaust pipe 15 in the axial direction of the conveying pipe 1; the discharge pipe 14 is close to the air intake pipe 16 in the axial direction of the conveying pipe 1 6; both ends of the conveying pipe 1 are sealed; the axial center of the conveying pipe 1 passes through and is connected to the center rod 2; a spiral plate 3 is provided between the outer wall of the center rod 2 and the inner wall of the conveying pipe 1; the inner edge of the spiral plate 3 is in contact with the outer wall of the center rod 2; the outer edge of the spiral plate 3 is in contact with the inner wall of the conveying pipe 1; the material entering from the feed pipe 13 flows along the spiral flow channel 31 formed by the spiral plate 3 to the discharge pipe 14; the inner wall of the conveying pipe 1 is fixedly connected to the filter screen 21; the filter screen 21 is located between the discharge pipe 14 and the suction pipe 16 in the axial direction of the conveying pipe 1.

[0038] During operation, after installing the pipeline conveying device on the bracket, the staff connects the feed pipe 13 in the pipeline conveying device to the storage tank containing zinc oxide. Since the zinc oxide in the storage tank has residual heat after preparation, the packaging bag is aligned with the discharge port of the discharge pipe 14. Finally, the suction pump and the cooling component are connected in series between the suction pipe 16 and the exhaust pipe 15. The suction pump in the pipeline conveying device is started. The suction pump will suck the suction pipe 16. The suction pipe 16 will remove the gas from the position of the filter screen 21 in the conveying pipe 1 facing away from the material, so that the filter screen 21 is away from the side of the material. Negative pressure is formed, thereby sucking the material in the conveying pipe 1. The suction pipe 16 will draw the gas into the cooling component along the suction pump. The gas is cooled by the cooling component to reduce the temperature of the gas. The gas will be discharged into the conveying pipe 1 along the exhaust pipe 15 under the action of the air pump. Since both ends of the conveying pipe 1 are sealed, the gas can only enter from one end of the conveying pipe 1 to the other end. During the axial flow of the gas along the conveying pipe 1, it will pass through the feed pipe 13 and the discharge pipe 14 in sequence. According to the principle that the pressure is small where the flow rate is large, the material in the feed pipe 13, that is, the oxygen The zinc oxide will enter the conveying pipe 1 along the feed pipe 13, and will be transported along the axial direction of the conveying pipe 1 close to the filter screen 21. Finally, the zinc oxide will be intercepted by the filter screen 21 and discharged along the discharge pipe 14. In the process of the zinc oxide flowing in the conveying pipe 1, it will be transported under the dual effects of air flow and negative pressure. In the process of the zinc oxide being transported along the axial direction of the conveying pipe 1, it will move along the spiral flow channel 31 formed by the spiral plate 3. The setting of the spiral flow channel 31 allows the cold air and the zinc oxide to be mixed more evenly, so that the cold air can push the zinc oxide to be transported more evenly. Cooling makes the heat in the zinc oxide transferred to the cold air to complete the heat exchange process. Compared with the original straight-through zinc oxide conveying method, the spiral flow channel 31 prolongs the flow path of the zinc oxide in the conveying pipe 1 and prolongs the conveying time of the zinc oxide in the conveying pipe 1, so that the zinc oxide can be better heat-exchanged by the cold air inside the conveying pipe 1, thereby improving the heat exchange effect of the zinc oxide. After the heat exchange, the temperature of the zinc oxide will drop, and finally flow out into the packaging bag along the discharge pipe 14; and the gas after the heat exchange will pass through the filter 21 and be sucked away by the suction pipe 16 for circulation;

[0039] The present invention forms a spiral flow channel 31 by arranging a spiral plate 3 in the conveying pipe 1, so that the zinc oxide and cold air flow along the spiral flow channel 31, so that the zinc oxide is cooled during the conveying process, thereby ensuring the production efficiency of zinc oxide. At the same time, the conveying path of the zinc oxide and the cold air in the conveying pipe 1 is greatly extended, and the cold air and the zinc oxide are better mixed, thereby improving the cooling effect of the zinc oxide during the conveying process.

[0040] Embodiment 2:

[0041] The filter screen 21 is arranged axially close to the discharge pipe 14 of the conveying pipe 1; the filter screen 21 is rotatably sealed and connected to the center rod 2; the outer wall of the center rod 2 is fixedly connected to the scraper 22; a plurality of scrapers 22 are evenly distributed on the outer wall of the center rod 2; the scraper 22 is in contact with the filter screen 21; the end of the conveying pipe 1 away from the suction pipe 16 is fixedly connected to the first motor 23; the output shaft of the first motor 23 is fixedly connected to one end of the center rod 2; the center rod 2 is rotatably sealed and connected to the conveying pipe 1; the filter screen 21 can be scraped during the rotation of the center rod 2.

[0042] In this embodiment, the scraper 22 corresponds to the position of the discharge pipe 14 in the axial direction of the conveying pipe 1; during the rotation of the center rod 2, the filter screen 21 can be scraped and the material can be thrown into the discharge pipe 14 at the same time.

[0043] During operation, when the zinc oxide is transported along the conveying pipe 1 and approaches the filter screen 21, the first motor 23 will rotate, and the rotating first motor 23 will drive the center rod 2 to rotate. During the rotation of the center rod 2, the scraper 22 will be driven to rotate. The scraper 22 contacts the filter screen 21, so that the zinc oxide stuck on the filter screen 21 can be scraped, thereby ensuring the unblocked state of the filter screen 21, so that the gas after the heat exchange can smoothly pass through the filter screen 21 into the intake pipe 16, and the zinc oxide scraped from the filter screen 21 and the zinc oxide transported to the scraper blade 22 generate centrifugal force under the rotation of the scraper blade 22, and finally discharged along the discharge pipe 14, so that the zinc oxide can be discharged along the discharge pipe 14 more smoothly and timely, thereby improving the transportation and cooling effect of the zinc oxide.

[0044] Embodiment 3:

[0045] One end of the spiral plate 3 close to the first motor 23 rests against the inner wall of the end of the conveying pipe 1; one end of the spiral plate 3 away from the first motor 23 extends to the position of the scraper 22; one end of the spiral plate 3 away from the first motor 23 is connected to the outer wall of the center rod 2; the center rod 2 drives the spiral plate 3 to rotate, which can assist in material transportation.

[0046] In this embodiment, the inner wall of one end of the conveying pipe 1 close to the first motor 23 is inclined; the spiral pitch of the spiral plate 3 changes cyclically as the spiral plate 3 moves close to the first motor 23 .

[0047] During operation, the first motor 23 rotates to drive the center rod 2 to rotate, and the center rod 2 will drive the spiral plate 3 to rotate. During the rotation of the spiral plate 3, the zinc oxide in the conveying pipe 1 can be better conveyed to avoid the zinc oxide from getting stuck in the conveying pipe 1. The principle of the spiral plate 3's rotation and conveying is the same as that of the screw extruder. The zinc oxide is conveyed by the rotation of the spiral plate 3. More importantly, during the rotation of the spiral plate 3, the end of the spiral plate 3 away from the first motor 23 rotates with the rotation of the center rod 2, and the end of the spiral plate 3 close to the first motor 23 will abut against the inner wall of the end of the conveying pipe 1. Since the inner wall of the end of the conveying pipe 1 close to the first motor 23 is inclined, the conveying pipe 1 is close to the first motor 23. The inner wall of the end near the first motor 23 is divided into two limit points, and the distance between one limit point and the filter 21 is greater than the distance between the other limit point and the filter 21, so that after the end of the spiral plate 3 close to the first motor 23 circulates through the two limit points, the spiral plate 3 is compressed and its own elastic force cooperates, so that the spiral pitch of the spiral plate 3 cyclically increases and decreases. In the process of the change of the spiral pitch of the spiral plate 3, the accumulated or stuck zinc oxide in the spiral flow channel 31 can be squeezed, so that the agglomerated or accumulated zinc oxide in the spiral flow channel 31 is compressed and loosened, so that the zinc oxide can be more stably transported in the conveying pipe 1, further improving the stability of zinc oxide transportation.

[0048] Embodiment 4:

[0049] A center hole 24 is provided at the end of the center rod 2 away from the first motor 23; a slide groove 25 is provided at the corresponding position of the outer wall of the center rod 2 and the inner side of the spiral plate 3; the slide groove 25 is connected to the center hole 24; a slider 26 is slidably connected in the slide groove 25; the end of the spiral plate 3 away from the first motor 23 is rotatably connected to the slider 26 through a rotating block 32; the center hole 24 is slidably sealed and connected to the slide rod 4; the end of the slide rod 4 close to the first motor 23 is fixedly connected to the slider 26; the slide rod 4 moves along the center hole 24 to push the spiral plate 3 toward the first motor 23.

[0050] In this embodiment, the end of the conveying tube 1 away from the first motor 23 is rotatably connected to the locking disk 5; the end of the center rod 2 is fixedly connected to the center of the locking disk 5; an L-shaped groove 51 is provided between the inner wall of the center hole 24 and the end face of the locking disk 5; the L-shaped groove 51 is slidingly sealed and connected to an L-shaped block 52; the L-shaped block 52 is connected to the groove wall of the L-shaped groove 51 by a spring 53 on the side away from the center hole 24; the cross-sections of the center hole 24 and the slide rod 4 are both square; the slide rod 4 is provided with a locking groove 41 on the side close to the L-shaped block 52; a plurality of the locking grooves 41 are distributed along the length direction of the slide rod 4; the end of the L-shaped block 52 can be inserted into the corresponding locking groove 41 under the push of the spring 53.

[0051] During operation, although the spiral flow channel 31 improves the heat exchange effect of zinc oxide and makes the zinc oxide cool down better, it also reduces the conveying efficiency of zinc oxide, and the temperature of zinc oxide in different batches is slightly different. In order to meet the cooling requirements of zinc oxide conveying in different batches or types, the staff will move the L-shaped block 52 away from the slide bar 4. During the moving process, the L-shaped block 52 will squeeze the spring 53 and slide along the L-shaped groove 51, so that the end of the L-shaped block 52 moves out of the corresponding locking groove 41, so that the slide bar 4 in the center hole 24 is unlocked, and the slide bar 4 will move along the center hole 24 under control, so that the slide bar 4 will drive the slider 26 to slide along the slide groove 25, and the slider 26 will drive the rotating block 32 and the end of the spiral plate 3 away from the first motor 23 to move, so that the end of the spiral plate 3 away from the first motor is close to or away from the first motor. Motor 23, when the end of the spiral plate 3 away from the first motor 23 approaches the first motor 23, the spiral plate 3 as a whole moves toward the first motor 23, so that the number of spiral turns of the spiral plate 3 between the feed pipe 13 and the discharge pipe 14 is reduced, so that the zinc oxide can be transported faster while ensuring heat exchange cooling, and when the end of the spiral plate 3 away from the first motor 23 is away from the first motor 23, the number of spiral turns of the spiral plate 3 between the feed pipe 13 and the discharge pipe 14 is increased, so that the zinc oxide can be better heat exchanged and cooled while ensuring the transportation efficiency, after the axial position adjustment of one end of the spiral plate 3 in the conveying pipe 1 is completed, the end of the L-shaped block 52 is stuck in the locking groove 41 under the elastic force of the spring 53, so that the position of the slide rod 4 in the center hole 24 is locked, so that the end of the spiral plate 3 away from the first motor 23 is locked;

[0052] In this embodiment, the axial position of the end of the spiral plate 3 away from the first motor 23 in the conveying pipe 1 is controlled, so that the number of spiral turns of the spiral plate 3 between the feed pipe 13 and the discharge pipe 14 is changed, and the spiral flow channel 31 with different numbers of turns is adjusted according to the transportation and heat exchange requirements of zinc oxide, so that the application range of the pneumatic pipeline conveying device is improved.

[0053] Embodiment 5:

[0054] The conveying pipe 1 is composed of a middle section pipe 11 and end pipes 12 at both ends of the middle section pipe 11; the two end pipes 12 are connected to the same bracket by bolts; the end pipes 12 are rotatably sealed and connected to the middle section pipe 11; the exhaust pipe 15 and the feed pipe 13 are connected to the outer wall of the end pipe 12 close to the first motor 23; the intake pipe 16 and the discharge pipe 14 are connected to the outer wall of the end pipe 12 away from the first motor 23; the outer wall of the middle section pipe 11 is fixedly connected to the outer gear ring 17; the outer edge of the outer gear ring 17 is engaged with the transmission connecting gear 18; the center of the gear 18 is connected to the output shaft of the second motor 19; the outer wall of the second motor 19 is fixedly connected to the outer wall of the end pipe 12; the second motor 19 drives the middle section pipe 11 to rotate through the gear 18 and the outer gear ring 17; the rotation direction of the middle section pipe 11 is the same as the rotation direction of the spiral plate 3.

[0055] In this embodiment, the outer gear ring 17 is arranged on the outer wall of the middle tube 11 close to the first motor 23; the outer wall of the middle tube 11 is evenly provided with heat sinks 6 along the axial direction; the heat sinks 6 are ring-shaped.

[0056] During operation, the end tube 12 in the conveying tube 1 will not rotate and remain stable during the conveying process. When the spiral plate 3 is driven to rotate by the first motor 23, the second motor 19 will drive the middle tube 11 to rotate. The middle tube 11 is located on the outside of the spiral plate 3 and contacts each other. The rotation direction of the middle tube 11 is the same as that of the spiral plate 3. The spiral plate 3 needs to maintain a certain speed to achieve mixing of cold air and zinc oxide to ensure more uniform heat exchange of zinc oxide; the rotation speed of the middle tube 11 is lower than the rotation speed of the spiral plate 3, thereby ensuring that the spiral plate 3 can rotate relative to the middle tube 11 to ensure the conveying effect of zinc oxide. The greater the rotation speed of the middle tube 11, the smaller the speed difference between the middle tube 11 and the spiral plate 3, so that zinc oxide in the spiral flow channel The slower the conveying speed in 31, the smaller the rotation speed of the middle tube 11, and the greater the speed difference between the middle tube 11 and the spiral plate 3, the faster the conveying speed of the zinc oxide in the spiral flow channel 31, so that it can be suitable for different types or batches of zinc oxide conveying and heat exchange requirements; during the rotation of the middle tube 11 and the spiral plate 3, the zinc oxide in the conveying process will generate centrifugal force, and the zinc oxide will contact the inner wall of the middle tube 11 under the action of the centrifugal force, thereby transferring heat to the middle tube 11, and the heat sink 6 on the outer wall of the middle tube 11 will generate disturbances with the surrounding gas during the rotation process, so that the heat on the heat sink 6 and the middle tube 11 is dissipated immediately, further improving the heat exchange effect of the zinc oxide in the conveying tube 1, so that the zinc oxide can be further cooled.

[0057] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat exchange type zinc oxide pneumatic pipeline conveying device, comprising a conveying pipe (1) and a feed pipe (13) and a discharge pipe (14) connected to the outer wall of the conveying pipe (1); the outer wall of the conveying pipe (1) is connected to an exhaust pipe (15) and an air intake pipe (16); the feed pipe (13) and the discharge pipe (14) are located between the exhaust pipe (15) and the air intake pipe (16) in the axial direction of the conveying pipe (1); an air pump and a cooling component are connected in series between the air intake pipe (16) and the exhaust pipe (15); characterized in that: The feed pipe (13) is arranged near the exhaust pipe (15) in the axial direction of the conveying pipe (1); the discharge pipe (14) is arranged near the intake pipe (16) in the axial direction of the conveying pipe (1); both ends of the conveying pipe (1) are sealed; the axial center of the conveying pipe (1) passes through and is connected to the center rod (2); a spiral plate (3) is arranged between the outer wall of the center rod (2) and the inner wall of the conveying pipe (1); the inner edge of the spiral plate (3) is in contact with the outer wall of the center rod (2); the outer edge of the spiral plate (3) is in contact with the inner wall of the conveying pipe (1); the material entering from the feed pipe (13) flows to the discharge pipe (14) along the spiral flow channel (31) formed by the spiral plate (3); the inner wall of the conveying pipe (1) is fixedly connected to the filter screen (21); the filter screen (21) is located between the discharge pipe (14) and the intake pipe (16) in the axial direction of the conveying pipe (1); The filter screen (21) is arranged near the discharge pipe (14) in the axial direction of the conveying pipe (1); the filter screen (21) is rotatably sealed with the center rod (2); the outer wall of the center rod (2) is fixedly connected with a scraper (22); a plurality of scrapers (22) are evenly distributed on the outer wall of the center rod (2); the scraper (22) is in contact with the filter screen (21); one end of the conveying pipe (1) away from the suction pipe (16) is fixedly connected with a first motor (23); the output shaft of the first motor (23) is fixedly connected with one end of the center rod (2); the center rod (2) is rotatably sealed with the conveying pipe (1); the filter screen (21) can be scraped during the rotation of the center rod (2); The scraper (22) corresponds to the position of the discharge pipe (14) in the axial direction of the conveying pipe (1); during the rotation of the central rod (2), the filter screen (21) can be scraped and the material can be thrown into the discharge pipe (14) at the same time.

2. A heat exchange type zinc oxide pneumatic pipeline conveying device according to claim 1, characterized in that: One end of the spiral plate (3) close to the first motor (23) abuts against the inner wall of the end of the conveying pipe (1); one end of the spiral plate (3) away from the first motor (23) extends to the position of the scraper (22); one end of the spiral plate (3) away from the first motor (23) is connected to the outer wall of the center rod (2); the center rod (2) drives the spiral plate (3) to rotate, which can assist in material conveying.

3. A heat exchange type zinc oxide pneumatic pipeline conveying device according to claim 2, characterized in that: The inner wall of one end of the conveying pipe (1) close to the first motor (23) is arranged to be inclined; the spiral pitch of the spiral plate (3) changes cyclically as the spiral plate (3) moves close to one end of the first motor (23).

4. A heat exchange type zinc oxide pneumatic pipeline conveying device according to claim 1, characterized in that: A center hole (24) is provided at the end of the center rod (2) away from the first motor (23); a slide groove (25) is provided at the corresponding position of the outer wall of the center rod (2) and the inner side of the spiral plate (3); the slide groove (25) is connected to the center hole (24); a slider (26) is slidably connected in the slide groove (25); the end of the spiral plate (3) away from the first motor (23) is rotatably connected to the slider (26) through a rotating block (32); the center hole (24) is slidably sealed and connected to the slide rod (4); the end of the slide rod (4) close to the first motor (23) is fixedly connected to the slider (26); the slide rod (4) moves along the center hole (24) to push the spiral plate (3) toward the first motor (23).

5. A heat exchange type zinc oxide pneumatic pipeline conveying device according to claim 4, characterized in that: The end of the conveying pipe (1) away from the first motor (23) is rotatably connected to the locking disk (5); the end of the center rod (2) is fixedly connected to the center of the locking disk (5); an L-shaped groove (51) is provided between the inner wall of the center hole (24) and the end face of the locking disk (5); the L-shaped block (52) is slidingly sealed in the L-shaped groove (51); the side of the L-shaped block (52) away from the center hole (24) is connected to the groove wall of the L-shaped groove (51) through a spring (53); the cross-sections of the center hole (24) and the sliding rod (4) are both square; the side of the sliding rod (4) close to the L-shaped block (52) is provided with a locking groove (41); a plurality of the locking grooves (41) are distributed along the length direction of the sliding rod (4); the end of the L-shaped block (52) can be inserted into the corresponding locking groove (41) under the push of the spring (53).

6. A heat exchange type zinc oxide pneumatic pipeline conveying device according to claim 2, characterized in that: The conveying pipe (1) is composed of a middle pipe (11) and end pipes (12) at both ends of the middle pipe (11); the two end pipes (12) are connected to the same bracket by bolts; the end pipes (12) are rotatably sealed and connected to the middle pipe (11); the exhaust pipe (15) and the feed pipe (13) are connected to the outer wall of the end pipe (12) close to the first motor (23); the suction pipe (16) and the discharge pipe (14) are connected to the end pipe far from the first motor (23). (12) outer wall; the outer wall of the middle section tube (11) is fixedly connected to the outer toothed ring (17); the outer edge of the outer toothed ring (17) is meshed with the transmission connecting gear (18); the center of the gear (18) is connected to the output shaft of the second motor (19); the outer wall of the second motor (19) is fixedly connected to the outer wall of the end tube (12); the second motor (19) drives the middle section tube (11) to rotate through the gear (18) and the outer toothed ring (17); the rotation direction of the middle section tube (11) is the same as the rotation direction of the spiral plate (3).

7. A heat exchange type zinc oxide pneumatic pipeline conveying device according to claim 6, characterized in that: The outer gear ring (17) is arranged on the outer wall of the middle section tube (11) close to the first motor (23); the outer wall of the middle section tube (11) is evenly provided with heat sinks (6) along the axial direction; the heat sinks (6) are ring-shaped.

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