A flash dryer

Abstract

The present invention provides a flash dryer, which includes a blower, a blade, a heat exchanger, a drying chamber, and a collection box. The side wall of the drying chamber is communicated with a feed box through a connecting pipe. One end of the heat exchanger is communicated with the blower, and the other end of the heat exchanger is communicated with the drying chamber. The upper end of the drying chamber is communicated with the feed pipe of the collection box through a communicating pipe. A filter screen is arranged in the collection box, and the feed pipe is located between the filter screen and the discharge pipe of the collection box. The lower end of the drying chamber is rotatably connected with a power rod, and a support disk located inside the drying chamber is fixedly connected to the power rod. The blade is connected to the side wall of the support disk, and a conduction assembly is arranged on the support disk. The support disk rotates and uses the conduction assembly to dial the lumps towards the direction close to the blade, so as to achieve the purpose of improving the crushing efficiency.

Description

Technical Field

[0001] The invention relates to drying equipment, in particular to a flash dryer. Background Art

[0002] At present, a Chinese patent application with publication number CN109387071A discloses a flash dryer, which includes an air supply mechanism, a heat exchanger and a heat exchange drying chamber, wherein the air supply mechanism is connected to the heat exchanger, and the heat exchanger is connected to the heat exchange drying chamber.

[0003] By adding a vibration separation part in the heat exchange drying chamber, large particles of material can be crushed again, and the crushing requirements can be met by only working in the first stage of the heat exchange drying chamber. The crushing rate is improved while the crushing efficiency is not affected. At the same time, the vibration separation part is connected to the connecting rod through an elastic part, and the material is vibrated and screened under the action of the cyclone.

[0004] However, the crusher of this flash dryer is a pair of symmetrically arranged moving knives, which crush the lumps. That is, the moving knives must rotate quickly to cut the lumps and cut the lumps into powder. When the lumps are subjected to the force of the moving knives, the lumps will move along the tangent direction of the rotating knives. Therefore, the lumps will gather toward the inner wall of the heat exchange drying chamber, and the moving knives can no longer contact the lumps, so the crushing efficiency will be low. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a flash dryer to achieve the purpose of improving the pulverizing efficiency.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a flash dryer, comprising a hair dryer, a blade, a heat exchanger, a drying chamber, and a collecting box, the side wall of the drying chamber is connected to a feed box through a connecting pipe, one end of the heat exchanger is connected to the hair dryer, and the other end of the heat exchanger is connected to the drying chamber, the upper end of the drying chamber is connected to the feed pipe of the collecting box through a connecting pipe, a filter is provided in the collecting box, the feed pipe is located between the filter and the discharge pipe of the collecting box, the lower end of the drying chamber is rotatably connected to a power rod, the power rod is fixedly connected to a support plate located in the drying chamber, the blade is connected to the side wall of the support plate, the support plate is provided with a conduction component, the support plate rotates and moves the block toward the blade through the conduction component.

[0007] To implement the above technical solution, the fan and the heat exchanger are started, hot air is blown into the drying chamber, blocks of appropriate size enter the drying chamber through the feed box, the power rod rotates, the power rod drives the support plate to rotate, the support plate drives the blade to rotate, and the blocks are pushed toward the blade through the conduction component to facilitate the cutting and crushing of the blocks by the blade. Compared with the prior art, it has a higher crushing efficiency; the dried powder in the drying chamber is input into the collection box from the connecting pipe through the action of wind force, and the powder is filtered through the filter and discharged from the discharge pipe of the collection box.

[0008] As a preferred solution of the present invention, the conduction component includes a vertical rod, a horizontal rod, a conduction rod, an inclined block, a fixing ring, a protrusion, and a first elastic member. A accommodating cavity is provided on the side of the support plate facing the bottom wall of the drying chamber. The fixing ring is fixed on the bottom wall of the drying chamber and is located in the accommodating cavity. The fixing ring is coaxially arranged with the support plate. The protrusion is fixed on the upper surface of the fixing ring. A plurality of protrusions are distributed along the axis of the fixing ring. A vertical hole connected to the accommodating cavity is provided on the support plate. The vertical rod passes through the vertical hole and is connected to the upper surface of the fixing ring by a connecting wheel. One end of the horizontal rod is fixedly connected to the vertical rod, and the other end of the horizontal rod extends toward the inner wall of the drying chamber and is fixedly connected to the conduction rod. The inclined block is fixed on the conduction rod, and the two ends of the first elastic member are respectively connected to the vertical rod and the support plate.

[0009] To implement the above technical solution, during the rotation of the support disk, the inner wall of the vertical hole contacts the vertical rod, and the conduction rod is driven to rotate along the axis of the support disk through the cross rod. When the connecting wheel on the vertical rod rolls on the protrusion, the conduction rod moves up, and the inclined block moves up synchronously with the conduction rod, so that the inclined surface on the inclined block pushes part of the block toward the direction close to the blade. After the vertical rod is separated from the protrusion, the conduction rod is quickly reset by the elastic force of the first elastic member and the action of gravity; during the upward movement of the conduction rod, part of the powder falls from the inclined block, during which time the wind is used to blow the powder away.

[0010] As a preferred solution of the present invention, a conduction plate is fixedly connected to the side wall of the conduction rod, a conduction slope is provided on the conduction plate, the length direction of the conduction plate is parallel to the length direction of the conduction rod, and the conduction plate is close to the inner wall of the drying chamber.

[0011] To implement the above technical solution, when the conduction rod moves along with the support disk, the conduction slope on the conduction plate moves the block toward the support disk, so as to further improve the crushing efficiency.

[0012] As a preferred embodiment of the present invention, a chute communicating with the accommodating cavity is formed on the side wall of the supporting disc. A supporting plate is slidably connected in the chute. An extension groove is fixedly connected to the side wall of the fixing ring. An arc-shaped convex portion is fixedly connected to the inner wall of the extension groove. A supporting wheel is rotatably connected to the supporting plate. The supporting wheel is in rolling connection with the inner wall of the extension groove. One end of the supporting plate away from the supporting wheel is connected to the blade.

[0013] To implement the above technical solution, during the rotation of the supporting disc, under the action of centrifugal force, the supporting wheel on the supporting plate rolls along the inner wall of the extension groove. When the supporting wheel rolls onto the arc-shaped convex portion, the blade moves towards the direction close to the supporting disc. After the supporting wheel separates from the arc-shaped convex portion, the blade moves away from the supporting disc and resets, thereby realizing the telescopic process of the blade and improving the cutting efficiency of the block.

[0014] As a preferred embodiment of the present invention, the supporting plate includes a sleeve, an inner rod and a second elastic member. The inner rod is slidably connected in the chute. The sleeve is located inside the accommodating cavity. The end of the inner rod is slidably connected inside the sleeve. Two ends of the second elastic member are respectively connected to the inner wall of the sleeve and the inner rod.

[0015] To implement the above technical solution, when the supporting wheel rolls onto the arc-shaped convex portion, the sleeve pulls the inner rod to move through the second elastic member. After the supporting wheel separates from the arc-shaped convex portion, the sleeve resets under the action of centrifugal force, and the inner rod moves again. Through the elastic force of the second elastic member, the inner rod can vibrate along its own length direction to reduce the residue amount of the material on the blade. At the same time, the blade improves the cutting efficiency of the block.

[0016] As a preferred embodiment of the present invention, the blade includes an integrally arranged connecting section and a cutting section. The connecting section is fixedly connected to the inner rod. One end of the cutting section away from the connecting section has an extension portion with a gradually increasing cross-sectional area. The extension portion smoothly transitions towards the connecting section.

[0017] To implement the above technical solution, when the blade cuts the block, through the setting of the extension section, a force towards the direction close to the supporting disc can be generated on the block to improve the cutting efficiency.

[0018] As a preferred embodiment of the present invention, straight grooves are formed on the outer wall of the blade. The length direction of the straight grooves is parallel to the length direction of the inner rod. A conical block is fixedly connected to the upper surface of the supporting disc.

[0019] To implement the above technical solution, the block falls from the feed box into the drying chamber, lands on the conical block, and under the action of gravity, the block falls along the conical block to facilitate the blade to cut the block. At the same time, through the setting of the straight groove, the material attached to the blade can fall along the straight groove to facilitate detachment from the blade, reducing the residue amount of the material on the blade.

[0020] As a preferred solution of the present invention, a driving rod is rotatably connected to the feed box, a plurality of driving rings are fixedly connected to the outer wall of the driving rod, and a plurality of knocking rods are fixedly connected to the outer wall of the driving ring.

[0021] To implement the above technical solution, the driving rod rotates, the driving ring drives the knocking rod to rotate along the axis of the driving rod, and the knocking rod breaks the large block into small blocks to achieve the effect of preliminary crushing.

[0022] As a preferred solution of the present invention, a rotating rod parallel to the driving rod is rotatably connected to the feed box, the rotating rod is located below the driving rod, and a spiral plate is fixedly connected to the outer wall of the rotating rod, and the spiral plate penetrates into the connecting pipe.

[0023] To implement the above technical solution, the rotating rod rotates, the spiral plate rotates along the axis of the rotating rod, and the spiral plate transports the small blocks to the drying chamber to achieve the purpose of facilitating transportation.

[0024] As a preferred solution of the present invention, the connecting pipe includes a first connecting section and a second connecting section. The first connecting section is communicated with the drying chamber, the second connecting section is communicated with the collection box, the first connecting section and the second connecting section are communicated through a drying cylinder, and the lower end of the drying cylinder is communicated with the heat exchanger.

[0025] To implement the above technical solution, after the hair dryer is started, the generated wind blows the powder into the drying cylinder through the first connecting section, the dried powder is directly introduced into the collection box from the second connecting section, the wet powder falls into the drying cylinder due to gravity, and hot air is injected into the drying cylinder to dry the wet powder. The dried powder is then introduced into the collection box from the drying cylinder and the second connecting section.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. The powder is dried twice by the drying cylinder, making the powder more dry and the quality of the powder falling into the collection box higher;

[0028] 2. Before the large block enters the drying chamber, the knocking rod breaks the large block into small blocks in advance, thus avoiding the problem of the support plate being stuck;

[0029] 3. The support plate rotates, and the blade rotates along the axis of the support plate. Moreover, the blade can move along its own length direction to improve the cutting efficiency. During the translation process of the blade, vibration occurs to reduce the residue amount of the material on the blade.

[0030] 4. The inclined block moves up and down as the support plate rotates, enabling some lumps to move from the inner wall of the drying chamber towards the middle of the drying chamber to improve the cutting and crushing efficiency. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the present invention;

[0032] Figure 2 is Figure 1 an enlarged view of part A of

[0033] Figure 3 is a schematic structural diagram showing the collection box;

[0034] Figure 4 is a schematic structural diagram showing the support plate;

[0035] Figure 5 is Figure 4 an enlarged view of part B of

[0036] Figure 6 is a schematic structural diagram showing the support plate;

[0037] Figure 7 is a schematic sectional view showing the support plate;

[0038] Figure 8 is a schematic structural diagram showing the fixing ring;

[0039] Figure 9 is a schematic structural diagram showing the arc-shaped convex part.

[0040] Reference numerals: 1, hair dryer; 2, blade; 20, straight groove; 21, connecting section; 22, cutting section; 23, expansion part; 3, heat exchanger; 4, drying chamber; 5, collection box; 51, filter screen; 6, feed box; 61, drive rod; 62, drive ring; 63, knocking rod; 64, rotating rod; 65, spiral plate; 7, power rod; 71, support plate; 72, accommodation cavity; 8, conduction component; 81, vertical rod; 811, connecting wheel; 82, cross bar; 83, conduction rod; 84, inclined block; 85, fixing ring; 86, convex block; 87, first elastic member; 88, vertical hole; 91, conduction plate; 92, conduction inclined plane; 100, chute; 101, extension groove; 102, arc convex part; 103, support plate; 104, sleeve; 105, inner rod; 106, second elastic member; 107, support wheel; 200, conical block; 300, connecting pipe; 301, first connecting section; 302, second connecting section; 303, drying cylinder. Detailed implementation manners

[0041] The following further details the specific implementation manners of the present invention in conjunction with the attached drawings, so that the technical solutions of the present invention are easier to understand and master.

[0042] A flash dryer includes a hair dryer 1, a blade 2, a heat exchanger 3, a drying chamber 4, and a collection box 5.

[0043] The side wall of the drying chamber 4 is communicated with a feed box 6 through a connecting pipe. A horizontally arranged drive rod 61 is rotatably connected to the feed box 6, and the drive rod 61 is driven by a servo motor. A plurality of drive rings 62 are fixedly connected to the outer wall of the drive rod 61, and the plurality of drive rings 62 are arranged along the axial direction of the drive rod 61. Three knocking rods 63 are fixedly connected to the outer wall of each drive ring 62. The three knocking rods 63 are evenly distributed along the axis of the drive ring 62.

[0044] A rotating rod 64 parallel to the drive rod 61 is rotatably connected to the feed box 6. The rotating rod 64 is located below the drive rod 61. A spiral plate 65 is fixedly connected to the outer wall of the rotating rod 64, and the spiral plate 65 penetrates into the connecting pipe. The rotating rod 64 is also driven by a servo motor to rotate.

[0045] Place large lumps in the feed box 6, and rotate the drive rod 61 to initially break the large lumps to obtain small lumps. In this embodiment, nickel carbonate is selected as the material. Nickel carbonate adheres to form lumps after absorbing moisture.

[0046] The rotating rod 64 rotates, and the spiral plate 65 rotates along the axis of the rotating rod 64 to transfer the small lumps to the drying chamber 4.

[0047] One end of the heat exchanger 3 is communicated with the hair dryer 1, and the other end of the heat exchanger 3 is communicated with the drying chamber 4. The heat exchanger 3 and the hair dryer 1 are turned on to inject hot air into the drying chamber 4.

[0048] A vertically arranged power rod 7 is rotatably connected to the lower end of the drying chamber 4, and the power rod 7 is driven by a servo motor. A support plate 71 located in the drying chamber 4 is fixedly connected to the power rod 7, and the support plate 71 is coaxially arranged with the power rod 7. The blade 2 is connected to the side wall of the support plate 71. A conduction component 8 is arranged on the support plate 71, and the support plate 71 rotates and moves the block toward the direction close to the blade 2 through the conduction component 8.

[0049] The conducting assembly 8 includes a vertical rod 81, a horizontal rod 82, a conducting rod 83, an inclined block 84, a fixing ring 85, a protrusion 86, and a first elastic member 87. A receiving cavity 72 is provided on the side of the supporting plate 71 facing the bottom wall of the drying chamber 4. The cross section of the receiving cavity 72 is circular and is coaxially arranged with the supporting plate 71. The fixing ring 85 is fixed on the bottom wall of the drying chamber 4 and is located in the receiving cavity 72. The fixing ring 85 is coaxially arranged with the receiving cavity 72. The protrusion 86 is fixed on the upper surface of the fixing ring 85, and a plurality of protrusions 86 are distributed along the axis of the fixing ring 85.

[0050] A vertical hole 88 connected to the accommodating chamber 72 is provided on the support plate 71. The vertical rod 81 passes through the vertical hole 88 from top to bottom and is rollingly connected to the upper surface of the fixing ring 85 through the connecting wheel 811. The connecting wheel 811 is rotatably connected to the lower end of the vertical rod 81. The cross bar 82 is horizontally arranged, one end of the cross bar 82 is fixedly connected to the vertical rod 81, and the other end of the cross bar 82 extends toward the inner wall of the drying chamber 4. The conduction rod 83 is vertically arranged, and the upper end of the conduction rod 83 is fixedly connected to the cross bar 82. The inclined block 84 is fixed to the side of the conduction rod 83 facing the support plate 71. The cross section of the inclined block 84 is a right-angled trapezoid.

[0051] Two ends of the first elastic member 87 are respectively connected to the vertical rod 81 and the support plate 71. The first elastic member 87 is a spring.

[0052] A conducting plate 91 is fixedly connected to the side wall of the conducting rod 83 , and a conducting inclined surface 92 is provided on the conducting plate 91 . The length direction of the conducting plate 91 is parallel to the length direction of the conducting rod 83 . The conducting plate 91 is close to the inner wall of the drying chamber 4 .

[0053] During the rotation of the power rod 7, the blade 2 rotates synchronously with the support disk 71, and the blade 2 crushes the lumps. At the same time, the support disk 71 drives the conduction plate 91 to rotate along the axis of the support disk 71, and the lumps near the inner wall of the drying chamber 4 are pushed towards the support disk 71 through the guiding action of the conduction inclined surface 92 to improve the crushing efficiency. At the same time, when the vertical rod 81 moves onto the convex block 86, the conduction rod 83 drives the inclined block 84 to move upward to further facilitate pushing the lumps towards the support disk 71. After the vertical rod 81 separates from the convex block 86, under the elastic force of the first elastic member 87 and the action of gravity, the vertical rod 81 moves downward and resets.

[0054] A chute 100 communicating with the accommodating cavity 72 is formed in the side wall of the support disk 71, and the cross section of the chute 100 is square. The length direction of the chute 100 is arranged along the radial direction of the support disk 71. A support plate 103 is slidably connected in the chute 100, and an extension groove 101 is fixedly connected to the side wall of the fixed ring 85. The extension groove 101 is coaxially arranged with the fixed ring 85. An arc-shaped convex portion 102 is fixedly connected to the inner wall of the extension groove 101, and a support wheel 107 is rotatably connected to the support plate 103. The support wheel 107 is in rolling connection with the inner wall of the extension groove 101. One end of the support plate 103 away from the support wheel 107 is connected to the blade 2.

[0055] During the rotation of the support disk 71, under the action of centrifugal force, the support wheel 107 rolls along the inner wall of the extension groove 101. When the support wheel 107 rolls onto the arc-shaped convex portion 102, the blade 2 moves towards the support disk 71. After the support wheel 107 separates from the arc-shaped convex portion 102, under the action of centrifugal force, the support wheel 107 comes into contact with the inner wall of the extension groove 101 again, and the blade 2 moves away from the support disk 71 and resets. Thus, the telescopic movement of the blade 2 is realized to improve the efficiency of cutting the lumps.

[0056] The support plate 103 includes a sleeve 104, an inner rod 105 and a second elastic member 106. The inner rod 105 is slidably connected in the chute 100, the sleeve 104 is located inside the accommodating cavity 72, and the end of the inner rod 105 is slidably connected inside the sleeve 104. The second elastic member 106 is located inside the sleeve 104, and both ends of the second elastic member 106 are respectively connected to the inner wall of the sleeve 104 and the inner rod 105. The second elastic member 106 is a spring.

[0057] When the support wheel 107 rolls over the arc-shaped convex portion 102, under the elastic force of the second elastic member 106, the inner rod 105 vibrates along its own length direction for a certain period of time to improve the efficiency of the blade 2 in cutting the lumps.

[0058] The blade 2 includes a connecting section 21 and a cutting section 22 which are integrally arranged. Among them, the connecting section 21 is fixedly connected to the inner rod 105, and one end of the cutting section 22 far from the connecting section 21 has an extension part 23 with a gradually increasing cross-sectional area, and the extension part 23 smoothly transitions towards the connecting section 21.

[0059] A straight groove 20 is formed on the outer wall of the blade 2, and the length direction of the straight groove 20 is parallel to the length direction of the inner rod 105. When the blade 2 vibrates, the residue amount of the material on the blade 2 is reduced.

[0060] A conical block 200 is fixedly connected to the upper surface of the support disk 71.

[0061] The connecting pipe 300 includes a first connecting section 301 and a second connecting section 302. The first connecting section 301 is communicated with the upper end of the drying chamber 4, and the second connecting section 302 is communicated with the lower end of the collection box 5. The first connecting section 301 and the second connecting section 302 are communicated through a drying cylinder 303, and the lower end of the drying cylinder 303 is communicated with the heat exchanger 3.

[0062] A filter screen 51 is fixedly connected inside the collection box 5, and the second connecting section 302 is located between the filter screen 51 and the discharge pipe of the collection box 5.

[0063] An air suction fan (not shown in the figure) is connected to the upper end of the collection box 5 to increase the suction force. One end of the air suction fan far from the collection box 5 is communicated with the water tank, so that the waste gas is injected into the water to reduce pollution.

[0064] Of course, the above are only typical examples of the present invention. In addition, the present invention can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A flash dryer, comprising a blower, a blade, a heat exchanger, a drying chamber, and a collection box, wherein the side wall of the drying chamber is connected to a feed box through a connecting pipe, one end of the heat exchanger is connected to the blower, and the other end of the heat exchanger is connected to the drying chamber, the upper end of the drying chamber is connected to a feed pipe of the collection box through a connecting pipe, a filter screen is provided in the collection box, the feed pipe is located between the filter screen and the discharge pipe of the collection box, and the lower end of the drying chamber is rotatably connected to a power rod, wherein the characteristics are: A support plate located in the drying chamber is fixedly connected to the power rod, and a blade is connected to the side wall of the support plate. A conduction component is arranged on the support plate. The support plate rotates and pushes the block toward the direction close to the blade through the conduction component. The conduction component includes a vertical rod, a horizontal rod, a conduction rod, an inclined block, a fixed ring, a protrusion, and a first elastic member. A accommodating cavity is provided on the side of the support plate facing the bottom wall of the drying chamber, the fixed ring is fixed on the bottom wall of the drying chamber and is located in the accommodating cavity, the fixed ring is coaxially arranged with the support plate, the protrusion is fixed to the upper surface of the fixed ring, and a plurality of protrusions are distributed along the axis of the fixed ring. A vertical hole connected to the accommodating cavity is provided on the support plate, and the vertical rod passes through the vertical hole and is connected to the upper surface of the fixed ring by a connecting wheel through a rolling connection. One end of the horizontal rod is fixedly connected to the vertical rod, and the other end of the horizontal rod extends toward the inner wall of the drying chamber and is fixedly connected to the conduction rod. The inclined block is fixed on the conduction rod, and the two ends of the first elastic member are respectively connected to the vertical rod and the support plate.

2. A flash dryer according to claim 1, characterized in that: A conduction plate is fixedly connected to the side wall of the conduction rod, a conduction inclined surface is provided on the conduction plate, the length direction of the conduction plate is parallel to the length direction of the conduction rod, and the conduction plate is close to the inner wall of the drying chamber.

3. A flash dryer according to claim 2, characterized in that: A sliding groove connected to the accommodating cavity is provided on the side wall of the support disk, a support plate is slidably connected in the sliding groove, an extension groove is fixedly connected to the side wall of the fixing ring, an arc-shaped convex portion is fixedly connected to the inner wall of the extension groove, a support wheel is rotatably connected to the support plate, the support wheel is rollingly connected to the inner wall of the extension groove, and the end of the support plate away from the support wheel is connected to the blade.

4. A flash dryer according to claim 3, characterized in that: The support plate includes a sleeve, an inner rod and a second elastic member. The inner rod is slidably connected in the slide groove. The sleeve is located inside the accommodating cavity. The end of the inner rod is slidably connected in the sleeve. The two ends of the second elastic member are respectively connected to the inner wall of the sleeve and the inner rod.

5. A flash dryer according to claim 4, characterized in that: The blade comprises an integrally arranged connecting section and a cutting section, wherein the connecting section is fixedly connected to the inner rod, and an end of the cutting section away from the connecting section is provided with an extension section with a gradually increasing cross-sectional area, and the extension section smoothly transitions toward the connecting section.

6. A flash dryer according to claim 5, characterized in that: A straight groove is arranged on the outer wall of the blade, the length direction of the straight groove is parallel to the length direction of the inner rod, and a conical block is fixedly connected to the upper surface of the supporting plate.

7. A flash dryer according to claim 1 or 6, characterized in that: A driving rod is rotatably connected to the feed box, a plurality of driving rings are fixedly connected to the outer wall of the driving rod, and a plurality of knocking rods are fixedly connected to the outer wall of the driving ring.

8. A flash dryer according to claim 7, characterized in that: A rotating rod arranged parallel to the driving rod is rotatably connected to the feed box, the rotating rod is located below the driving rod, a spiral plate is fixedly connected to the outer wall of the rotating rod, and the spiral plate penetrates into the connecting pipe.

9. A flash dryer according to claim 8, characterized in that: The connecting pipe includes a first connecting section and a second connecting section, the first connecting section is connected to the drying chamber, the second connecting section is connected to the collecting box, the first connecting section and the second connecting section are connected through a drying cylinder, and the lower end of the drying cylinder is connected to the heat exchanger.

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