Spray drying device for active dry yeast production

Abstract

The invention provides a spray drying device for active dry yeast production, and belongs to the technical field of active dry yeast production.The spray drying device comprises a drying cylinder, an air inlet assembly, a spray assembly, an air injection assembly and a driving assembly.The spray assembly is installed at the top of the inner side of the drying cylinder and used for spraying yeast liquid into the drying cylinder; the air injection assembly is arranged in the drying cylinder, the air inlet assembly is installed on the outer wall of the drying cylinder and used for conveying high-temperature air to the air injection assembly and outputting the high-temperature air through the air injection assembly, and the driving assembly is arranged in the drying cylinder. The driving assembly is used for driving the air injection assembly to rotate. Compared with the prior art, according to the embodiment of the invention, after the production of the dry yeast is finished, the yeast granules attached to the inner wall of the drying cylinder can be automatically cleaned, so that the influence of the residual yeast granules on the inner wall of the drying cylinder on the subsequent production process of the dry yeast is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of active dry yeast production, and specifically relates to a spray drying device for active dry yeast production. Background Art

[0002] At present, during the production of active dry yeast, a spray drying device is required for drying treatment. Specifically, yeast liquid and hot air are transported into the drying cylinder through different nozzles, and the hot air evaporates the water in the atomized yeast liquid to obtain yeast grains.

[0003] However, when the hot air interacts with the atomized yeast liquid, some of the generated yeast grains are likely to adhere to the inner wall of the drying cylinder, thus affecting the smooth collection of yeast grains. Moreover, when too many yeast grains adhere to the inner wall of the drying cylinder, it will also affect the production effect of subsequent dry yeast. Summary of the Invention

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the embodiments of the present invention is to provide a spray drying device for active dry yeast production.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A spray drying device for active dry yeast production includes a drying cylinder, an air inlet assembly, a spray assembly, a jet assembly, and a drive assembly.

[0007] The spray assembly is installed at the inner top of the drying cylinder and is used to spray yeast liquid into the drying cylinder.

[0008] The jet assembly is arranged inside the drying cylinder, and the air inlet assembly is installed on the outer wall of the drying cylinder and is used to transport hot air to the jet assembly and output it through the jet assembly.

[0009] The drive assembly is arranged inside the drying cylinder. During the production of active dry yeast, the drive assembly is used to drive the jet assembly to rotate so that the air outlet end of the jet assembly points in the direction of the spray assembly to dry the yeast liquid sprayed by the spray assembly.

[0010] After the production of active dry yeast is completed, the drive assembly is used to drive the jet assembly to rotate in the reverse direction so that the air outlet end of the jet assembly points in the direction of the inner wall of the drying cylinder to blow off the yeast grains adhering to the inner wall of the drying cylinder.

[0011] As a further improvement of the present invention: The spray assembly includes a yeast liquid delivery pipe, a liquid spraying pipe, and a nozzle.

[0012] The liquid spraying pipe is fixedly installed on the inner top wall of the drying cylinder, the spray head is arranged at the bottom of the liquid spraying pipe, one end of the yeast liquid conveying pipe is connected to a pump set for pumping yeast liquid outside, and the other end extends from the top of the drying cylinder to the inside of the drying cylinder and is connected to the liquid spraying pipe.

[0013] As a further improvement of the present invention: The air inlet assembly includes an air inlet main pipe and an air inlet ring pipe.

[0014] The air inlet ring pipe is arranged around the outer wall of the drying cylinder and is fixedly connected to the outer wall of the drying cylinder. One end of the air inlet main pipe is connected to an external air inlet fan, and the other end is connected to the air inlet ring pipe.

[0015] The air jetting assembly includes a plurality of air jetting branch pipes.

[0016] A plurality of the air jetting branch pipes are annularly and spacedly distributed around the liquid spraying pipe. A plurality of the air jetting branch pipes are hingedly installed on the inner wall of the drying cylinder. The upper end of each group of the air jetting branch pipes is communicated with the air inlet ring pipe through a group of flexible pipes.

[0017] As a further improvement of the present invention: The driving assembly includes an extension side pipe, an elastic member, and a piston rod.

[0018] A plurality of groups of the extension side pipes are provided corresponding to the air jetting branch pipes one by one. A plurality of the extension side pipes are fixedly arranged on the outer wall of the liquid spraying pipe. A plurality of the extension side pipes are annularly and spacedly distributed on the outer wall of the liquid spraying pipe. A group of the piston rods are movably arranged inside the end of each group of the extension side pipes away from the liquid spraying pipe.

[0019] One end of each group of the piston rods away from the corresponding extension side pipe is hingedly connected to the corresponding air jetting branch pipe. A group of annular stoppers are fixedly arranged on the outside of each group of the piston rods. One side of each group of the annular stoppers is connected to the corresponding extension side pipe through a group of the elastic members. The elastic members are used to provide elastic tension to the piston rods.

[0020] As a further improvement of the present invention: A group of sliding sleeves are movably sleeved outside each group of the air jetting branch pipes. A group of support rods are hingedly arranged on the outer wall of each group of the sliding sleeves. One end of each group of the support rods away from the sliding sleeves is fixedly connected to the inner wall of the drying cylinder.

[0021] As a further improvement of the present invention: The elastic member is a spring or a metal elastic sheet.

[0022] As a further improvement of the present invention: A discharge pipe is arranged at the bottom of the drying cylinder.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] In an embodiment of the present invention, when producing active dry yeast, the yeast liquid can be sprayed into the drying cylinder through the spraying assembly. At the same time, high-temperature air is transported to the jetting assembly through the air intake assembly, and then transported to the inside of the drying cylinder by the jetting assembly. During this process, the jetting assembly is driven to rotate by the driving assembly, so that the air outlet end of the jetting assembly points in the direction of the spraying assembly. Furthermore, the high-temperature air output from the air outlet end of the jetting assembly points to the spraying assembly, thereby drying the atomized yeast liquid sprayed through the spraying assembly. After the atomized yeast liquid is dried, dry yeast granules are formed. When the production of active dry yeast is completed, the spraying assembly stops spraying the yeast liquid. At this time, the driving assembly is used to drive the jetting assembly to rotate in the reverse direction, so that the air outlet end of the jetting assembly points in the direction of the inner wall of the drying cylinder, and then the high-temperature air is transported to the inner wall of the drying cylinder to blow off the dry yeast granules attached to the inner wall of the drying cylinder, realizing automatic cleaning of the inner wall of the drying cylinder. Compared with the prior art, after the production of dry yeast is completed, the yeast granules attached to the inner wall of the drying cylinder can be automatically cleaned, thereby avoiding the influence of the residual yeast granules on the inner wall of the drying cylinder on the subsequent production process of dry yeast. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a spray drying device for producing active dry yeast Figure One ;

[0026] Figure 2 is a schematic structural diagram of a spray drying device for producing active dry yeast Figure Two ;

[0027] Figure 3 is a schematic structural diagram of a spray drying device for producing active dry yeast Figure Three ;

[0028] Figure 4 is Figure 2 an enlarged schematic diagram of area A in

[0029] In the figure: 10 - drying cylinder, 101 - discharge pipe, 20 - air intake assembly, 201 - air intake main pipe, 202 - air intake annular pipe, 30 - spraying assembly, 301 - yeast liquid conveying pipe, 302 - liquid spraying pipe, 303 - nozzle, 40 - jetting assembly, 401 - flexible pipe, 402 - jetting branch pipe, 403 - sliding sleeve, 404 - support rod, 50 - driving assembly, 501 - extending side pipe, 502 - elastic member, 503 - annular block, 504 - piston rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions of the present invention will be further described in detail below in conjunction with the specific embodiments.

[0031] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3 , this embodiment provides a spray drying device for the production of active dry yeast, including a drying cylinder 10, an air inlet assembly 20, a spray assembly 30, a jet assembly 40 and a drive assembly 50. The spray assembly 30 is installed at the inner top of the drying cylinder 10 and is used to spray yeast liquid into the drying cylinder 10. The jet assembly 40 is arranged inside the drying cylinder 10. The air inlet assembly 20 is installed on the outer wall of the drying cylinder 10 and is used to transport high-temperature air to the jet assembly 40 and output it by the jet assembly 40. The drive assembly 50 is arranged inside the drying cylinder 10. During the production process of active dry yeast, the drive assembly 50 is used to drive the jet assembly 40 to rotate, so that the air outlet end of the jet assembly 40 points in the direction of the spray assembly 30, so as to dry the yeast liquid sprayed through the spray assembly 30. After the production of active dry yeast is completed, the drive assembly 50 is used to drive the jet assembly 40 to rotate in the reverse direction, so that the air outlet end of the jet assembly 40 points in the direction of the inner wall of the drying cylinder 10, so as to blow off the yeast grains attached to the inner wall of the drying cylinder 10.

[0033] When active dry yeast needs to be produced, the yeast liquid can be sprayed into the drying cylinder 10 through the spray assembly 30. At the same time, the high-temperature air is transported to the jet assembly 40 by the air inlet assembly 20 and then transported to the drying cylinder 10 by the jet assembly 40. During this process, the drive assembly 50 drives the jet assembly 40 to rotate, so that the air outlet end of the jet assembly 40 points in the direction of the spray assembly 30, and further makes the high-temperature air output from the air outlet end of the jet assembly 40 point to the spray assembly 30, thereby drying the atomized yeast liquid sprayed through the spray assembly 30. After the atomized yeast liquid is dried, dry yeast grains are formed. After the production of active dry yeast is completed, the spray assembly 30 stops spraying the yeast liquid. At this time, the drive assembly 50 drives the jet assembly 40 to rotate in the reverse direction, so that the air outlet end of the jet assembly 40 points in the direction of the inner wall of the drying cylinder 10, and then transports the high-temperature air to the inner wall of the drying cylinder 10 to blow off the dry yeast grains attached to the inner wall of the drying cylinder 10, realizing the automatic cleaning of the inner wall of the drying cylinder 10.

[0034] Please refer to Figure 2, in one embodiment, the spray assembly 30 includes a yeast liquid delivery pipe 301, a liquid spraying pipe 302, and a spray head 303. The liquid spraying pipe 302 is fixedly installed on the inner top wall of the drying cylinder 10. The spray head 303 is arranged at the bottom of the liquid spraying pipe 302. One end of the yeast liquid delivery pipe 301 is connected to a pump set (not shown in the figure) for pumping yeast liquid outside, and the other end extends from the top of the drying cylinder 10 into the drying cylinder 10 and is connected to the liquid spraying pipe 302.

[0035] When producing active dry yeast is required, the yeast liquid can be pumped into the yeast liquid delivery pipe 301 by using an external pump set, then enter the liquid spraying pipe 302 from the yeast liquid delivery pipe 301, and finally be sprayed out through the spray head 303 at the bottom of the liquid spraying pipe 302, so that the yeast liquid is atomized inside the drying cylinder 10.

[0036] Please refer to Figure 2 , in one embodiment, the air intake assembly 20 includes an air intake main pipe 201 and an air intake ring pipe 202. The air intake ring pipe 202 is disposed around the outer wall of the drying cylinder 10 and is fixedly connected to the outer wall of the drying cylinder 10. One end of the air intake main pipe 201 is connected to an external air intake fan (not shown in the figure), and the other end is connected to the air intake ring pipe 202. The air jetting assembly 40 includes a plurality of air jetting branch pipes 402. The plurality of air jetting branch pipes 402 are annularly and spacedly distributed around the liquid spraying pipe 302. The plurality of air jetting branch pipes 402 are hingedly installed on the inner wall of the drying cylinder 10. The upper end of each group of air jetting branch pipes 402 is communicated with the air intake ring pipe 202 through a group of flexible pipes 401.

[0037] When an external pump group pumps the yeast liquid through the delivery pipe 301 into the interior of the liquid spraying pipe 302 and causes the yeast liquid to be ejected through the nozzle 303, the driving assembly 50 drives a plurality of jet branch pipes 402 to rotate synchronously relative to the inner wall of the drying cylinder 10, so that the lower ends of the plurality of jet branch pipes 402 serving as the air outlet ends are inclined and pointed at the nozzle 303. At this time, the external intake air blower is used to sequentially deliver the high-temperature air through the intake main pipe 201 and the intake ring pipe 202 into the interiors of the plurality of jet branch pipes 402, and the high-temperature air is then output from the lower ends of the plurality of jet branch pipes 402. At this time, since the lower ends of the plurality of jet branch pipes 402 serving as the air outlet ends are inclined and pointed at the nozzle 303, the high-temperature air can perform a drying process on the atomized yeast liquid ejected through the nozzle 303; after the dry yeast production is completed, the nozzle 303 stops spraying the yeast liquid. At this time, the driving assembly 50 drives the plurality of jet branch pipes 402 to rotate in the reverse direction relative to the inner wall of the drying cylinder 10, so that the lower ends of the plurality of jet branch pipes 402 serving as the air outlet ends are changed from the direction of being inclined and pointed at the nozzle 303 to the direction of being inclined and pointed at the inner wall of the drying cylinder 10. At this time, when the high-temperature air is ejected from the lower ends of the plurality of jet branch pipes 402, it can act on the inner wall of the drying cylinder 10, and then blow off the yeast grains adhering to the inner wall of the drying cylinder 10, realizing the automatic cleaning of the inner wall of the drying cylinder 10.

[0038] Please refer to Figure 4 , in one embodiment, the driving assembly 50 includes an extended side pipe 501, an elastic member 502, and a piston rod 504. A plurality of groups of the extended side pipes 501 are provided corresponding to the jet branch pipes 402 one by one. A plurality of the extended side pipes 501 are fixedly arranged on the outer wall of the liquid spraying pipe 302, and the plurality of the extended side pipes 501 are annularly and spacedly distributed on the outer wall of the liquid spraying pipe 302. A group of the piston rods 504 are movably arranged inside each end of the extended side pipe 501 away from the liquid spraying pipe 302. One end of each piston rod 504 away from the corresponding extended side pipe 501 is hingedly connected to the corresponding jet branch pipe 402. A group of annular stoppers 504 are fixedly arranged on the outside of each piston rod 504. One side of each annular stopper 504 is connected to the corresponding extended side pipe 501 through a group of the elastic members 502, and the elastic members 502 are used to provide elastic tension to the piston rods 504.

[0039] When the yeast liquid flows inside the liquid spraying pipe 302 and is ejected from the nozzle 303, a part of the yeast liquid will enter the inside of a number of extending side pipes 501 through the liquid spraying pipe 302. At this time, this part of the yeast liquid will obtain a relatively large pressure under the push of the subsequent yeast, thereby pushing a number of piston rods 504 to move the number of piston rods 504 outside the corresponding extending side pipes 501, thereby pushing a number of jet branch pipes 402 to rotate the number of jet branch pipes 402 relative to the inner wall of the drying cylinder 10, so that the lower ends of the number of jet branch pipes 402 are inclined to point to the nozzle 303, so that the high-temperature air output from the lower ends of the number of jet branch pipes 402 can act on the atomized yeast liquid ejected from the nozzle 303, thereby drying the yeast liquid; after the production of dry yeast is completed, the nozzle 303 stops spraying the yeast liquid, and the subsequent yeast liquid no longer flows inside the liquid spraying pipe 302, so that the pressure inside the liquid spraying pipe 302 is reduced. A number of elastic members 502 pull a number of piston rods 504 to move the number of piston rods 504 inside the corresponding extending side pipes 501, and then pull a number of jet branch pipes 402 to rotate the number of jet branch pipes 402 in the opposite direction relative to the inner wall of the drying cylinder 10, so that the lower ends of the number of jet branch pipes 402 are inclined to point to the direction of the inner wall of the drying cylinder 10, so as to convey the high-temperature air to the inner wall of the drying cylinder 10, and then blow off the yeast grains attached to the inner wall of the drying cylinder 10, realizing the automatic cleaning of the inner wall of the drying cylinder 10.

[0040] Please refer to Figure 2 and Figure 3 , in one embodiment, a set of sliding sleeves 403 are movably sleeved outside each of the jet branch pipes 402, and a set of support rods 404 are hingedly arranged on the outer walls of each of the sliding sleeves 403. One end of each of the support rods 404 away from the sliding sleeve 403 is fixedly connected to the inner wall of the drying cylinder 10.

[0041] Through the arrangement of the support rods 404 and the sliding sleeves 403, rotational support can be provided for the jet branch pipes 402, so that when the piston rods 504 move relative to the extending side pipes 501 and then push and pull the jet branch pipes 402, the jet branch pipes 402 can drive the sliding sleeves 403 to rotate relative to the support rods 404, and at the same time, the jet branch pipes 402 slide adaptively relative to the sliding sleeves 403, thereby completing the hinged connection between the jet branch pipes 402 and the inner wall of the drying cylinder 10.

[0042] In one embodiment, the elastic member 502 can be a spring or a metal elastic sheet, and no limitation is made here.

[0043] Please refer to Figure 1 and Figure 2 , in one embodiment, a discharge pipe 101 is provided at the bottom of the drying cylinder 10.

[0044] After the high-temperature air dries the atomized yeast liquid, the formed yeast grains move downward along the inside of the drying cylinder 10 together with the high-temperature air and are finally output together through the discharge pipe 101.

[0045] In the embodiment of the present invention, when producing active dry yeast, the yeast liquid can be sprayed into the inside of the drying cylinder 10 via the spraying assembly 30. At the same time, the high-temperature air is transported to the jetting assembly 40 by the air intake assembly 20 and then transported to the inside of the drying cylinder 10 by the jetting assembly 40. During this process, the driving assembly 50 drives the jetting assembly 40 to rotate, so that the air outlet end of the jetting assembly 40 points in the direction of the spraying assembly 30. Furthermore, the high-temperature air output from the air outlet end of the jetting assembly 40 points to the spraying assembly 30, thereby drying the atomized yeast liquid sprayed via the spraying assembly 30. After the atomized yeast liquid is dried, dry yeast grains are formed. After the production of active dry yeast is completed, the spraying assembly 30 stops spraying the yeast liquid. At this time, the driving assembly 50 drives the jetting assembly 40 to rotate in the reverse direction, so that the air outlet end of the jetting assembly 40 points in the direction of the inner wall of the drying cylinder 10, and then the high-temperature air is transported to the inner wall of the drying cylinder 10 to blow off the dry yeast grains adhering to the inner wall of the drying cylinder 10, realizing the automatic cleaning of the inner wall of the drying cylinder 10. Compared with the prior art, after the production of dry yeast is completed, the yeast grains adhering to the inner wall of the drying cylinder 10 can be automatically cleaned, thereby avoiding the influence of the residual yeast grains on the inner wall of the drying cylinder 10 on the subsequent production process of dry yeast.

[0046] The above has described the preferred embodiments of the present invention in detail, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the gist of the present invention.

Claims

1. A spray drying device for the production of active dry yeast, characterized in that, It includes a drying cylinder, an air inlet assembly, a spraying assembly, a jetting assembly and a driving assembly. The spraying assembly is installed at the inner top of the drying cylinder and is used to spray yeast liquid into the drying cylinder. The jetting assembly is arranged inside the drying cylinder, and the air inlet assembly is installed on the outer wall of the drying cylinder and is used to transport high-temperature air to the jetting assembly and output it from the jetting assembly. The driving assembly is arranged inside the drying cylinder. During the production process of active dry yeast, the driving assembly is used to drive the jetting assembly to rotate, so that the air outlet end of the jetting assembly points in the direction of the spraying assembly to dry the yeast liquid sprayed by the spraying assembly. After the production of active dry yeast is completed, the driving assembly is used to drive the jetting assembly to rotate in the reverse direction, so that the air outlet end of the jetting assembly points in the direction of the inner wall of the drying cylinder to blow off the yeast grains attached to the inner wall of the drying cylinder.

2. The spray drying device for producing active dry yeast according to claim 1, characterized in that, The spraying assembly includes a yeast liquid delivery pipe, a liquid spraying pipe and a nozzle. The liquid spraying pipe is fixedly installed on the inner top wall of the drying cylinder, the nozzle is arranged at the bottom of the liquid spraying pipe, one end of the yeast liquid delivery pipe is connected to a pump group for pumping yeast liquid outside, and the other end extends from the top of the drying cylinder into the drying cylinder and is connected to the liquid spraying pipe.

3. The spray drying device for producing active dry yeast according to claim 2, characterized in that, The air inlet assembly includes an air inlet main pipe and an air inlet ring pipe. The air inlet ring pipe is arranged around the outer wall of the drying cylinder and is fixedly connected to the outer wall of the drying cylinder. One end of the air inlet main pipe is connected to an external air inlet fan, and the other end is connected to the air inlet ring pipe. The jetting assembly includes a plurality of jetting branch pipes. A plurality of the jetting branch pipes are distributed at intervals in a ring around the liquid spraying pipe. A plurality of the jetting branch pipes are hingedly installed on the inner wall of the drying cylinder, and the upper end of each group of the jetting branch pipes is communicated with the air inlet ring pipe through a group of flexible pipes.

4. A spray drying device for the production of active dry yeast according to claim 3, characterized in that, The driving assembly includes an extended side pipe, an elastic member and a piston rod. A plurality of groups of the extended side pipes are provided corresponding to the jetting branch pipes one by one. A plurality of the extended side pipes are fixedly arranged on the outer wall of the liquid spraying pipe. A plurality of the extended side pipes are distributed at intervals in a ring on the outer wall of the liquid spraying pipe. A group of the piston rods are movably arranged inside the end of each group of the extended side pipes away from the liquid spraying pipe. One end of each group of the piston rods away from the corresponding extended side pipe is hingedly connected to the corresponding jetting branch pipe. A group of annular stoppers are fixedly arranged on the outside of each group of the piston rods. One side of each group of the annular stoppers is connected to the corresponding extended side pipe through a group of the elastic members, and the elastic members are used to provide elastic tensile force for the piston rods.

5. The spray drying device for producing active dry yeast according to claim 3, wherein, A group of sliding sleeves are movably sleeved on the outside of each group of the jetting branch pipes. A group of support rods are hingedly arranged on the outer wall of each group of the sliding sleeves. One end of each group of the support rods away from the sliding sleeves is fixedly connected to the inner wall of the drying cylinder.

6. A spray drying device for the production of active dry yeast according to claim 4, characterized in that, The elastic member is a spring or a metal spring piece.

7. A spray drying device for the production of active dry yeast according to claim 1, characterized in that, A discharge pipe is arranged at the bottom of the drying cylinder.

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