Airflow type spray drying tower

Abstract

The utility model relates to the technical field of spray drying towers, in particular to an airflow type spray drying tower which comprises a granulation mechanism, an atomization nozzle arranged on the granulation mechanism, a wall material clearing mechanism arranged on the granulation mechanism and a powder spraying mechanism arranged in the granulation mechanism. And the granulation mechanism comprises a drying tower and a sealing cover arranged at the top end of the drying tower. An anti-sticking pad and a drainage pad which are used for guiding particles and limiting the water mist diffusion range are arranged at the bottom and the top of an inner cavity of a traditional drying tower correspondingly, after a powder spraying mechanism sprays powder into the inner cavity of the drying tower, the sprayed powder can be captured through water mist sprayed downwards at the same time, and after the powder is drained at the high temperature in the inner cavity of the drying tower, the water mist can be discharged out of the inner cavity of the drying tower. And once the materials on the periphery of the concentrated water mist are adhered to the inner wall of the drying tower, the annular cutter head which ascends and descends in a reciprocating manner can roll and scrape the adhered materials, and finally, the materials are rounded under the auxiliary action of the anti-adhesion pad and the baffle plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray drying tower technical field, concretely is a airflow type spray drying tower. BACKGROUND

[0002] Spray drying tower is used for the drying equipment of biological pesticide, medicine, food microorganism. Spray drying is a kind of drying process that raw material liquid is separated into mist drop in atomizer, and the product of powder shape is obtained by the method of direct contact of hot air or other gas and mist drop

[0003] At present, when different powder materials are granulated in the spray drying tower, the adhesion degrees of different kinds of powder materials soaked by water mist are different, and the powder in the area where water mist is concentrated is easy to adhere to the inner wall of the drying tower under the influence of pressure after being soaked, once the material adheres too much, it will form a tumor, and seriously, it will interfere with the granulation of subsequent powder materials.

[0004] Therefore, the airflow type spray drying tower is designed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving one of the technical problems existing in prior art or related art.

[0006] Therefore, the utility model adopts the technical scheme that

[0007] A kind of airflow type spray drying tower, including granulating mechanism, be set up on granulating mechanism atomizing nozzle, be set up on granulating mechanism wall material and clear back mechanism and be set up in granulating mechanism powder spraying mechanism;The granulating mechanism includes drying tower and is set up at the top of drying tower cover;The wall material and clear back mechanism include two limit pieces installed in cover, setting in one limit piece active traction assembly, setting in another limit piece passive traction assembly and setting on active traction assembly and passive traction assembly annular cutter head, and annular cutter head adaptation fits on the inner wall of drying tower;The atomizing nozzle is set in the middle of cover;The powder spraying mechanism includes the spray pipe in the inner chamber of drying tower and the baffle installed on the spray pipe.

[0008] The utility model can be further configured in a preferred example as follows: the granulating mechanism further includes anti-sticking pad installed at the bottom of the inner chamber of drying tower, and drainage pad is set at the top of the inner chamber of drying tower.

[0009] The first pad and the second pad are symmetrically arranged on the two sides of the outer part of the drying tower.

[0010] The utility model discloses a wall material clear mechanism further can be further configured as: wall material clear mechanism still includes the machine case of installing on drying tower, the inside installation of machine case has motor, the eccentric wheel is provided on transmission shaft inside motor,

[0011] The eccentric wheel is movably installed with a pull rod.

[0012] The utility model discloses a wall material clear mechanism further can be further configured as: the active traction subassembly includes the first outer pole of movably installing in the other end of pull rod, the other end installation of first outer pole has first roof, the other end installation of first roof has first inner pole,

[0013] The stud fixed mounting of first inner pole bottom end is in annular cutter head.

[0014] The utility model discloses a wall material clear mechanism further can be further configured as: the passive traction subassembly includes second outer pole, the top end installation of second outer pole has second roof, the other end installation of second roof has second inner pole,

[0015] Second outer pole is adapted to be penetrated to second pad foot, and the outside of second outer pole is provided with compression spring.

[0016] The utility model discloses a wall material clear mechanism further can be further configured as: the bottom end of atomizing nozzle is provided with annular spray hole.

[0017] The utility model discloses a wall material clear mechanism further can be further configured as: the spray mechanism still includes the plug of setting in the top end of spray pipe, is provided with the pressure bearing base in the inner chamber of spray pipe, is provided with spring in the recess between pressure bearing base and spray pipe,

[0018] The inner wall of spray pipe is fixedly installed with the grommet ring,

[0019] Pressure bearing base and plug are provided with vertical rod between.

[0020] The utility model discloses a wall material clear mechanism further can be further configured as: the pressure bearing base is composed of bottom plate and sleeve pipe, and the sleeve pipe is movably installed in the inside of grommet ring,

[0021] And the inside of bottom plate is provided with the uniformly distributed sector notch.

[0022] Through adopting above technical scheme, the utility model discloses the obtained beneficial effect is:

[0023] 1.The utility model discloses a particle is formed in the bottom and top of traditional drying tower cavity respectively set up for guiding particle and limiting water mist diffusion range's anti -sticking pad and drainage pad, when the powder is shot to the inner chamber of drying tower by powder spraying mechanism, the water mist that is shot down can capture the powder that is shot out simultaneously, and after the drying tower inner chamber high temperature control dry, the granulated material can drop quickly, and the material of the concentrated water mist periphery is adhered to the inner wall of drying tower, and the annular cutter head in reciprocating lifting can roll round and scrape the adhered material, and finally the anti -sticking pad and the baffle auxiliary effect and round. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the schematic diagram of the utility model for use;

[0025] Figure 2 It is the schematic diagram of the utility model granulating mechanism and wall material clearing mechanism;

[0026] Figure 3 It is the utility model Figure 2 Explosive schematic diagram;

[0027] Figure 4 It is the utility model Figure 3 The enlarged schematic diagram of A place in it;

[0028] Figure 5 It is the schematic diagram of powder spraying mechanism of the utility model.

[0029] Reference signs:

[0030] 100, granulating mechanism, 110, drying tower, 120, anti -sticking pad, 130, drainage pad, 140, cover, 150, first pad foot, 160, second pad foot;

[0031] 200, wall material clearing mechanism, 210, machine box, 220, motor, 230, eccentric wheel, 240, pull rod, 250, active traction assembly, 251, first outer rod, 252, first top plate, 253, first inner rod, 260, passive traction assembly, 261, second outer rod, 262, second top plate, 263, second inner rod, 264, compression spring, 270, annular cutter head, 280, limiting piece;

[0032] 300, atomizing nozzle;

[0033] 400, powder spraying mechanism, 410, spray pipe, 420, baffle, 430, plug, 440, pressure bearing base, 450, vertical rod, 460, spring, 470, pad ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further explained in detail below in combination with specific embodiments and referring to the drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] It is understood that the description is only exemplary and is not intended to limit the scope of the utility model.

[0036] Some embodiments of the utility model provide an airflow type spray drying tower, which is described below in combination with the drawings.

[0037] Embodiment 1

[0038] In combination with Figures 1-5 The utility model provides an airflow type spray drying tower, which comprises a granulating mechanism 100, an atomizing nozzle 300 arranged on the granulating mechanism 100, a wall material clearing mechanism 200 arranged on the granulating mechanism 100 and a powder spraying mechanism 400 arranged in the granulating mechanism 100. The granulating mechanism 100 is used for providing a granulating platform for powder materials. The wall material clearing mechanism 200 is used for performing round granulation on the adhered materials in the granulating mechanism 100, so as to avoid the interference of the adhered materials on the powder. The atomizing nozzle 300 is used for performing wet granulation on the powder in the granulating mechanism 100. The powder spraying mechanism 400 is used for providing a spraying path for the powder.

[0039] The granulating mechanism 100 comprises a drying tower 110, a cover 140 arranged at the top end of the drying tower 110, an anti-sticking pad 120 mounted at the bottom of the inner cavity of the drying tower 110, and a drainage pad 130 arranged at the top of the inner cavity of the drying tower 110.

[0040] The first pad foot 150 and the second pad foot 160 are symmetrically arranged on the two sides of the outer part of the drying tower 110.

[0041] The wall material clearing mechanism 200 comprises two limiting pieces 280 mounted in the cover 140, a driving traction assembly 250 arranged in one of the limiting pieces 280, a passive traction assembly 260 arranged in the other limiting piece 280, and an annular cutter head 270 arranged on the driving traction assembly 250 and the passive traction assembly 260. The annular cutter head 270 is adapted to be attached to the inner wall of the drying tower 110.

[0042] The atomizing nozzle 300 is arranged in the middle part of the cover 140.

[0043] The powder spraying mechanism 400 comprises a spray pipe 410 arranged in the inner cavity of the drying tower 110 and a baffle 420 mounted on the spray pipe 410.

[0044] When the drying tower performs the granulation operation on the powder material, part of the wetted powder material will first approach the inner wall of the drying tower under the action of air pressure, and then the granulated material will be adhered to the inner wall of the drying tower. Once the adhered material increases, it will seriously hinder the subsequent material injection and granulation. With the increase of the adhered material, the fouling will deteriorate over time.

[0045] The device reduces the distance between the material and the water mist injection, and keeps the material injection path consistent with the water mist injection path. After the material is injected from the top hole of the spray pipe 410 into the cavity of the drying tower 110, the material will diffuse in a ring shape. At the same time, the annular water mist sprayed downward by the atomizing nozzle 300 can quickly wet and granulate the material. At this time, the high temperature generated in the cavity of the drying tower 110 can quickly dry the granulated material.

[0046] Once part of the material adheres to the inner wall of the drying tower 110 after being wetted, the motor 220 can be operated. With the driving shaft eccentric wheel 230 in the motor 220 driving the pull rod 240 to reciprocally extend, the active traction assembly 250 can cooperate with the passive traction assembly 260 to apply reciprocating lifting traction force to the annular cutter head 270. At this time, the adhered material can be pressed and rolled into a circle, and the finally dropped material can be assisted by the anti-sticking pad 120 and the baffle 420 for rolling treatment.

[0047] Embodiment 2:

[0048] In combination Figures 2-4 As shown in the drawings, on the basis of embodiment 1, the wall material cleaning mechanism 200 further comprises a machine box 210 installed on the drying tower 110, and a motor 220 is installed inside the machine box 210. An eccentric wheel 230 is arranged on the transmission shaft inside the motor 220.

[0049] The eccentric wheel 230 movably installs a pull rod 240.

[0050] Preferably, the length of the pull rod 240 is the same as the length of the diameter of the eccentric wheel 230, and a pin is installed at the position of the outer end of the pull rod 240 deviating from the center of the circle, and the bottom end of the pull rod 240 is movably installed on the pin.

[0051] The active traction assembly 250 comprises a first outer rod 251 movably installed at the other end of the pull rod 240, a first top plate 252 installed at the other end of the first outer rod 251, and a first inner rod 253 installed at the other end of the first top plate 252.

[0052] The shank of the first inner rod 253 is fixedly installed in the annular cutter head 270.

[0053] The first outer rod 251 is preferably composed of a flat plate and an end rod, the bottom end of the end plate is movably mounted on the top of the pull rod 240, and the end rod is adapted to penetrate into the first foot pad 150.

[0054] The passive traction assembly 260 comprises a second outer rod 261, the top end of the second outer rod 261 is mounted with a second top plate 262, the other end of the second top plate 262 is mounted with a second inner rod 263;

[0055] The second outer rod 261 is adapted to penetrate into the second foot pad 160, and the outer portion of the second outer rod 261 is provided with a compression spring 264.

[0056] The bottom end of the compression spring 264 is preferably pressed against the top of the second foot pad 160, and the top end of the compression spring 264 is pressed against the bottom of a limiting member 280, and the limiting member 280 is in the form of a U-shaped structure as a whole.

[0057] The bottom end of the atomizing nozzle 300 is preferably provided with annular spray holes.

[0058] Embodiment 3:

[0059] In combination with Figure 3 and Figure 5 As shown in the above embodiment, the powder spraying mechanism 400 further comprises a plug 430 arranged at the top end of the spray pipe 410, a pressure bearing base 440 is arranged in the inner cavity of the spray pipe 410, and a spring 460 is arranged in the groove between the pressure bearing base 440 and the spray pipe 410;

[0060] The pressure bearing base 440 is composed of a bottom plate and a sleeve, and the sleeve is movably mounted on the inner side of the gasket ring 470;

[0061] The inner portion of the bottom plate is provided with uniformly distributed fan-shaped notches.

[0062] The bottom end of the spring 460 is preferably pressed against the bottom plate, and the top end of the spring 460 is pressed against the bottom of the gasket ring 470, when the powder material in the inner cavity of the spray pipe 410 is blocked due to the increase of the input quantity, the pressure bearing base 440, the vertical rod 450 and the plug 430 which can vibrate in the vertical direction can dredge the blocked material in the inner cavity of the spray pipe 410, so as to facilitate the maintenance and maintenance of the inner cavity of the spray pipe 410.

[0063] The gasket ring 470 is fixedly mounted on the inner wall of the spray pipe 410;

[0064] The vertical rod 450 is arranged between the pressure bearing base 440 and the plug 430;

[0065] The top end of the spray pipe 410 is preferably provided with uniformly distributed holes, when the powder material is blown upward by the airflow, the released powder can be in the form of a ring and quickly contacts the water mist through the transfer of the uniformly distributed holes, so as to ensure the rapid granulation of the powder.

[0066] The working principle and use process of the utility model: the bottom end of the spray pipe 410 is butt jointed with the powder input pipeline in advance, then the top end of the atomizing nozzle 300 is butt jointed with the liquid injection pipeline;

[0067] When the inner cavity of the drying tower 110 is in the hot steam state, the powder passes through the spray pipe 410 and the spray port at the top end thereof and is released towards the inner cavity of the drying tower 110, and under the constraint of the drainage pad 130, the powder falls downwards, at the same time, the water mist sprayed by the atomizing nozzle 300 towards the inner cavity of the drying tower 110 directly below can quickly capture the powder in the floating state, until the powder quickly condenses into particles, and the height of the inner cavity of the drying tower 110 can quickly evaporate the moisture in the falling particles;

[0068] The material that part of the powder is adhered to the inner wall of the drying tower 110 due to the continuous output of the water mist can be quickly scraped off by the annular cutter head 270 in the reciprocating lifting state, so as to avoid that the powder scale accumulates too much to interfere with the subsequent humid particles;

[0069] When the scraped material scale is pressed and scraped by the top cutter surface of the annular cutter head 270, the material scale will be rolled under the influence of the water mist, and finally the material scale is assisted by the anti-sticking pad 120 and the baffle 420 to roll, so that the device can reduce the scale pollution of the powder material to the inner wall of the drying tower, and also can improve the rolling degree after granulation.

[0070] In the utility model, the term "multiple" refers to two or more than two, unless otherwise explicitly limited. The term "and / or" used in this paper includes any and all combinations of one or more related listed items. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0071] It should be noted that when an element is referred to as "assembled", "mounted", "fixed" or "provided" to another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this paper are only for illustrative purposes, not the only embodiment.

[0072] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air flow spray drying tower comprising a prilling mechanism (100), characterized in that, The wall material cleaning mechanism (200) is arranged on the granulating mechanism (100), and the powder spraying mechanism (400) is arranged in the granulating mechanism (100). The granulating mechanism (100) comprises a drying tower (110) and a cover (140) arranged at the top end of the drying tower (110). The wall material cleaning mechanism (200) comprises two limiting members (280) arranged in the cover (140), a driving traction assembly (250) arranged in one of the limiting members (280), a passive traction assembly (260) arranged in the other limiting member (280), and an annular cutter head (270) arranged on the driving traction assembly (250) and the passive traction assembly (260), and the annular cutter head (270) is adapted to be attached to the inner wall of the drying tower (110). The atomizing nozzle (300) is arranged in the middle part of the cover (140). The powder spraying mechanism (400) comprises a spray pipe (410) arranged in the inner cavity of the drying tower (110) and a baffle (420) arranged on the spray pipe (410).

2. An air flow spray drying column according to claim 1, characterised in that The granulating mechanism (100) further comprises an anti-sticking pad (120) arranged at the bottom of the inner cavity of the drying tower (110) and a drainage pad (130) arranged at the top of the inner cavity of the drying tower (110). The first pad (150) and the second pad (160) are symmetrically arranged on the two sides of the drying tower (110).

3. An air flow spray drying column according to claim 1, wherein The wall material cleaning mechanism (200) further comprises a machine box (210) arranged on the drying tower (110), and a motor (220) is arranged in the machine box (210). The eccentric wheel (230) is movably arranged on the transmission shaft in the motor (220).

4. An air flow spray drying column according to claim 1, wherein The driving traction assembly (250) comprises a first outer rod (251) movably arranged at the other end of the pull rod (240), a first top plate (252) arranged at the other end of the first outer rod (251), and a first inner rod (253) arranged at the other end of the first top plate (252). The first inner rod (253) is fixedly arranged in the annular cutter head (270).

5. An air flow spray drying column according to claim 1, wherein The passive traction assembly (260) comprises a second outer rod (261), a second top plate (262) arranged at the top end of the second outer rod (261), and a second inner rod (263) arranged at the other end of the second top plate (262). The second outer rod (261) is adapted to penetrate into the second pad (160), and a compression spring (264) is arranged on the outer side of the second outer rod (261).

6. An air flow spray drying column according to claim 1, wherein The bottom end of the atomizing nozzle (300) is provided with an annular spray hole.

7. An air flow spray drying column according to claim 1, wherein The powder spraying mechanism (400) further comprises a plug (430) arranged at the top end of the spray pipe (410), a pressure bearing base (440) arranged in the inner cavity of the spray pipe (410), and a spring (460) arranged in the groove between the pressure bearing base (440) and the spray pipe (410). The inner wall of the spray pipe (410) is fixedly provided with a grommet (470). A vertical rod (450) is arranged between the pressure bearing base (440) and the plug (430).

8. An air flow spray drying column according to claim 7, characterised in that The pressure bearing base (440) is composed of a bottom plate and a sleeve, and the sleeve is movably installed on the inner side of the gasket ring (470); And the inside of the bottom plate is provided with uniformly distributed fan-shaped notches.

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