CN113244643A - Spray dryer of pig blood protein powder - Google Patents
Spray dryer of pig blood protein powder Download PDFInfo
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- CN113244643A CN113244643A CN202110715830.2A CN202110715830A CN113244643A CN 113244643 A CN113244643 A CN 113244643A CN 202110715830 A CN202110715830 A CN 202110715830A CN 113244643 A CN113244643 A CN 113244643A
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- protein powder
- blood protein
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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Abstract
The invention provides a spray dryer of pig blood protein powder, and relates to the field of preparation of pig blood protein powder. The spray dryer comprises a machine shell, an atomizer and a hot gas generator, wherein a drying cavity is arranged in the machine shell, the upper part of the drying cavity is provided with a spray nozzle and a plurality of gas outlets, a mist pipeline is connected between the atomizer and the spray nozzle, and a hot gas pipeline is connected between the hot gas generator and the plurality of gas outlets; the lower part of the drying cavity is provided with a flow guide hopper which is of a funnel structure with an upward hopper opening, a flexible cylinder cover is connected between the flow guide hopper and the upper part of the drying cavity, and the flexible cylinder cover is provided with air-permeable powder filtering micropores; the air flow direction of the plurality of air outlets is obliquely downward and is intersected with the spraying direction of the spraying outlets. The hot air and the mist are fully contacted and mixed at the intersection, so that the water can be completely evaporated to obtain the pig blood protein powder particles, and the hot air and the water vapor are outwards diffused through the micropores of the flexible cylinder cover, so that the pig blood protein powder is always kept in the flexible cylinder cover, and the drying and pulverizing effect of the device is better.
Description
Technical Field
The invention relates to the technical field of pig blood protein powder preparation, in particular to a spray dryer of pig blood protein powder.
Background
The pig blood protein powder is a biological product produced by fresh pig blood through a complex process, contains various essential amino acids required by a human body, and has high nutritional value. In the whole preparation process, the pig blood protein powder can be obtained by spray drying the serous fluid with the protein concentration of 30-40%.
If the grant bulletin number is CN209085271U, the chinese utility model patent that the grant bulletin day is 2019.07.09 discloses a dry tail gas waste heat recovery device of pig blood protein powder, and specifically disclose the device and include the box, from top to bottom include first dry chamber and heating chamber in proper order in the box, first dry chamber top is connected with the inlet pipe, the inlet pipe bottom stretches into first dry intracavity and is connected with the cloth platform, cloth platform below evenly is connected with branch material pipe downwards, divide the material bottom of the tube end to install the spraying head, first dry chamber bottom central authorities department is connected with the unloading pipe, evenly be provided with the hot plate in the heating chamber diapire, the unloading pipe of first dry chamber runs through the heating chamber and is connected with the screw feeding section of thick bamboo. Utilize the hot plate in the heating chamber to heat water, heat first heating chamber through vapor, the pig blood albumen powder preliminary drying that will spout the stub bar and spray out.
The device for recovering the waste heat of the dried tail gas of the porcine blood protein powder in the prior art exchanges heat with concentrated slurry in the first drying cavity through hot air, so that the aim of powder preparation by evaporation and drying is fulfilled. However, since the slurry mist is not uniformly mixed with the hot air, a part of the slurry mist is not sufficiently dried and is condensed at the bottom of the drying chamber, and there is a problem that the drying and powdering effect is poor.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a spray dryer for porcine blood protein powder, which solves the problem that partial slurry water mist is not sufficiently dried and condensed at the bottom of a drying chamber due to the non-uniform mixing of the slurry water mist and hot air, and the drying powder making effect is poor.
The technical scheme of the spray dryer for the pig blood protein powder is as follows:
the spray dryer for the pig blood protein powder comprises a machine shell, an atomizer and a hot air generator, wherein the atomizer and the hot air generator are installed on the machine shell, a drying cavity is arranged in the machine shell, the upper part of the drying cavity is provided with a spray nozzle and a plurality of air outlets, a fog pipeline is connected between the atomizer and the spray nozzle, and a hot air pipeline is connected between the hot air generator and the air outlets;
the lower part of the drying cavity is provided with a flow guide hopper which is of a funnel structure with an upward hopper opening, a flexible cylinder cover is connected between the flow guide hopper and the upper part of the drying cavity, and the flexible cylinder cover is provided with air-permeable powder filtering micropores; the air outlets are arranged on the outer side of the atomizing nozzle, and the air flow directions of the air outlets are obliquely downward and intersect with the atomizing direction of the atomizing nozzle.
Furthermore, the airflow directions of the plurality of exhaust ports and the spraying direction of the spraying port are focused on the same intersection point position.
Furthermore, the casing includes dry section of thick bamboo wall and top cap, the fog nozzle sets up the center of top cap, a plurality of the gas vent circumference interval is arranged in the periphery of fog nozzle, the top edge of flexible cover is fixed in a plurality of the outside position of gas vent.
Further, the flexible cylinder cover is made of any one of synthetic fiber filter cloth, glass fiber filter cloth, cotton canvas or non-woven filter cloth.
Furthermore, the diversion hopper comprises a conical hopper part and a conduit part, the conical hopper part is connected with the drying cylinder wall in a floating mode, the machine shell further comprises a bottom plate arranged on the lower portion of the drying cylinder wall, a through hole is formed in the bottom plate, and the conduit part of the diversion hopper is inserted into the through hole.
Furthermore, at least two elastic pieces are connected between the conical hopper part and the wall of the drying cylinder, and the at least two elastic pieces extend along the radial direction of the conical hopper part.
Furthermore, the lower part of the flow guide hopper is also provided with a feeding mechanism, the feeding mechanism comprises a feeding barrel and a central shaft, bristles which are spirally arranged are arranged outside the central shaft, the barrel wall of the front part of the feeding barrel is provided with an air vent, the inner side of the air vent is also provided with air-permeable powder filtering cloth, and the bristles are in friction fit with the air-permeable powder filtering cloth.
Furthermore, the hot gas generator comprises an air inlet barrel, an electric heating structure and an air inlet fan, wherein the electric heating structure is fixed inside the air inlet barrel, the air inlet fan is arranged at one end of the air inlet barrel, and the hot gas pipeline is connected to the other end of the air inlet barrel.
Furthermore, the inside of hot-air pipeline is close to exhaust port department is equipped with temperature sensor, temperature sensor electrothermal structure with air intake fan is connected with control circuit board respectively, temperature sensor is used for detecting the temperature of hot-air, control circuit board is used for receiving the temperature signal that temperature sensor sent to according to temperature signal adjustment electrothermal structure's heating power.
Furthermore, the casing is provided with heat dissipation holes, and the heat dissipation holes are provided with heat dissipation fans.
Has the advantages that: this spray dryer of pig blood protein powder has adopted the structural design who is connected with flexible cover between the upper portion of water conservancy diversion fill and drying chamber, form the mixed evaporation to dryness space between the upper portion of drying chamber and water conservancy diversion fill through flexible cover, the upper portion of drying chamber sets up nozzle and a plurality of gas vent, the air current direction of a plurality of gas vents is crossing the arrangement with the spraying direction of nozzle downwards to one side, a plurality of hot-air flows are crossing with the fog air current, hot-air and fog fully contact the mixture in crossing department, ensure can fully evaporate the moisture in the fog in order to obtain pig blood protein powder. Because the flexible cylinder cover is provided with the ventilation powder filtering micropores, the heat supply air and the vapor are diffused outwards through the micropores of the flexible cylinder cover, so that the pig blood protein powder is always kept in the flexible cylinder cover, and the pig blood protein powder which is dried by rapid evaporation of water can be collected. Compare in current spray drying equipment, avoid because of thick liquid water smoke and hot-air's the inhomogeneous of mixture, partial thick liquid water smoke can't obtain fully dry and condense in the bottom of dry chamber, and the dry powder process effect of this equipment is better.
Drawings
FIG. 1 is a schematic sectional view of a spray dryer for pig blood protein powder according to an embodiment of the spray dryer for pig blood protein powder of the present invention;
fig. 2 is a schematic plan view of a spray opening and a plurality of air discharge openings in an embodiment of the spray dryer for porcine blood protein powder of the present invention.
In the figure: 1-a machine shell, 10-a drying cylinder wall, 11-a spray opening, 12-an exhaust opening, 13-a top cover, 14-a radiating fan, 2-an atomizer, 20-a fog pipeline, 3-a hot gas generator, 30-a hot gas pipeline, 31-an air inlet cylinder, 32-an electric heating structure, 33-an air inlet fan and 34-a temperature sensor;
4-a flow guide hopper, 40-a flexible cylinder cover, 41-a conical hopper part, 42-a guide pipe part, 43-an elastic part, 5-a feeding mechanism, 50-a feeding cylinder, 51-bristles, 52-vent holes and 53-breathable powder filtering cloth.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In embodiment 1 of the spray dryer for porcine blood protein powder of the present invention, as shown in fig. 1 and 2, the spray dryer for porcine blood protein powder comprises a casing 1, an atomizer 2 and a hot gas generator 3 mounted on the casing 1, wherein a drying chamber is arranged in the casing 1, an atomizing port 11 and a plurality of exhaust ports 12 are arranged at an upper portion of the drying chamber, a mist pipeline 20 is connected between the atomizer 2 and the atomizing port 11, and a hot gas pipeline 30 is connected between the hot gas generator 3 and the plurality of exhaust ports 12; the lower part of the drying cavity is provided with a flow guide hopper 4, the flow guide hopper 4 is of a funnel structure with an upward hopper opening, a flexible cylinder cover 40 is connected between the flow guide hopper 4 and the upper part of the drying cavity, and the flexible cylinder cover 40 is provided with air-permeable powder filtering micropores; the plurality of exhaust ports 12 are provided outside the spray opening 11, and the airflow direction of the plurality of exhaust ports 12 is arranged obliquely downward to intersect the spray direction of the spray opening 11.
This spray dryer of pig blood protein powder has adopted the structural design who is connected with flexible cover 40 between the upper portion of kuppe 4 and drying chamber, form the mixed evaporation to dryness space through flexible cover 40 between the upper portion of drying chamber and kuppe 4, the upper portion of drying chamber sets up nozzle 11 and a plurality of gas vent 12, the air current direction of a plurality of gas vents 12 is crossing the arrangement with nozzle 11's spraying direction downwards to one side, a plurality of hot-air flows are crossing with the fog air current, hot-air and fog fully contact the mixture in crossing department, ensure can fully evaporate the moisture in the fog in order to obtain pig blood protein powder. Because the flexible cylinder cover 40 is provided with the ventilation powder filtering micropores, the heat supply air and the vapor are diffused outwards through the micropores of the flexible cylinder cover 40, so that the pig blood protein powder is always kept inside the flexible cylinder cover 40, and the pig blood protein powder which is dried by rapid evaporation of water can be collected. Compare in current spray drying equipment, avoid because of thick liquid water smoke and hot-air's the inhomogeneous of mixture, partial thick liquid water smoke can't obtain fully dry and condense in the bottom of dry chamber, and the dry powder process effect of this equipment is better.
In the present embodiment, the airflow direction of the plurality of exhaust ports 12 and the spray direction of the spray outlet 11 are focused on the same intersection point position. Specifically, the spraying direction of the spraying port 11 is vertically downward arranged, the number of the air outlets 12 is four, the air flow directions of the four air outlets 12 respectively form an included angle of 30 degrees with the spraying direction, namely, the hot air sprayed obliquely downward and the mist sprayed vertically downward intersect at the same intersection point position, and the hot air and the mist are fully contacted and mixed at the intersection point position, so that the moisture in the mist can be completely evaporated, and the drying effect of the pig blood protein powder prepared through the drying cavity is ensured.
The machine shell 1 comprises a drying cylinder wall 10 and a top cover 13, a spray opening 11 is arranged at the center of the top cover 13, four exhaust openings 12 are circumferentially arranged at intervals on the periphery of the spray opening 11, and the upper edge of a flexible cylinder cover 40 is fixed at the outer side position of the exhaust openings 12. And, the flexible cylinder cover 40 is made of synthetic fiber filter cloth, has the characteristics of high filtering precision and good air permeability, the filtering precision can reach 5 μm, and the particles are not easy to adhere to the flexible cylinder cover, so that the gas and the particles can be effectively separated and filtered. In other embodiments, in order to meet different use requirements, the flexible cylinder cover can be made of any one of glass fiber filter cloth, cotton canvas or non-woven filter cloth, and the purpose of separating and filtering gas and powder particles can also be achieved.
Utilize flexible cover 40 cover to establish between top cap 13 and water conservancy diversion fill 4, form the mixed evaporation to dryness space between fog nozzle 11, gas vent 12 and water conservancy diversion fill 4, because flexible cover 40 has ventilative powder micropore, supply heat air and vapor through the micropore of flexible cover 40 and outwards distribute, and make pig blood albumen powder remain the inside at flexible cover 40 all the time, realize the pig blood albumen powder after the flash evaporation to dryness moisture can collect the drying.
In this embodiment, the diversion bucket 4 includes a tapered bucket portion 41 and a conduit portion 42, the tapered bucket portion 41 is connected to the drying cylinder wall 10 in a floating manner, the casing 1 further includes a bottom plate disposed at a lower portion of the drying cylinder wall 10, a through hole is formed in the bottom plate, and the conduit portion 42 of the diversion bucket 4 is inserted into the through hole of the bottom plate. At least two elastic members 43 are connected between the tapered bucket portion 41 and the drying cylinder wall 10, and the at least two elastic members 43 extend in the radial direction of the tapered bucket portion 41.
The elastic pieces 43 are preferably cylindrical tension springs, the number of the cylindrical tension springs is three, the three cylindrical tension springs are arranged in central symmetry about the central axis of the conical hopper part 41, the diversion hopper 4 is kept below the atomizing spray opening 11 and the exhaust opening 12 in the middle under the elastic stretching effect of the three cylindrical tension springs, and the diversion hopper 4 is connected to the drying barrel wall 10 in a floating mode and can shake and vibrate in a small range along with the jet force of the airflow, so that the powder particles on the conical hopper part 41 smoothly slide into the guide pipe part 42 on one hand, and the flexible barrel cover 40 can be pulled continuously in the other direction to shake off the powder particles on the inner side of the flexible barrel cover 40, and the drying powder making effect is better.
And the lower part of the guide hopper 4 is also provided with a feeding mechanism 5, the feeding mechanism 5 comprises a feeding barrel 50 and a central shaft, the outer part of the central shaft is provided with bristles 51 which are spirally arranged, the front barrel wall of the feeding barrel 50 is provided with a vent hole 52, the inner side of the vent hole 52 is also provided with an air-permeable powder filtering cloth 53, and the bristles 51 of the central shaft are in friction fit with the air-permeable powder filtering cloth 53. The air is discharged through the micropores of the air-permeable powder filtering cloth 53, the influence of direct blowing of air flow on normal conveying of powder particles is avoided, the dried powder particles are attached to the surface of the air-permeable powder filtering cloth 53, and the brush bristles 51 are in frictional contact with the air-permeable powder filtering cloth 53, so that the powder particles are scraped away and continuously conveyed along the feeding barrel 50.
The hot air generator 3 comprises an air inlet drum 31, an electric heating structure 32 and an air inlet fan 33, wherein the electric heating structure 32 is fixed inside the air inlet drum 31, the air inlet fan 33 is arranged at one end of the air inlet drum 31, and the hot air pipeline 30 is connected to the other end of the air inlet drum 31. Furthermore, a temperature sensor 34 is disposed inside the hot air pipeline 30 near the air outlet 12, the temperature sensor 34, the electric heating structure 32 and the air inlet fan 33 are respectively connected to a control circuit board (not shown), the temperature sensor 34 is used for detecting the temperature of the hot air, and the control circuit board is used for receiving a temperature signal from the temperature sensor 34 and adjusting the heating power of the electric heating structure 32 according to the temperature signal.
The set temperature of the control circuit board is any temperature range between 90 ℃ and 150 ℃, specifically, the set temperature range of the control circuit board is 100 ℃ to 120 ℃, the outside air flows through the electric heating structure 32 to heat and rise the temperature, the hot air is sprayed out from the exhaust port 12 through the hot air pipeline 30, the moisture in the dry mist is quickly evaporated by using the high temperature of the hot air, if the temperature detected by the temperature sensor 34 is higher than 120 ℃, the control circuit board controls the electric heating structure 32 to reduce the heating power, and if the temperature detected by the temperature sensor 34 is lower than 100 ℃, the control circuit board controls the electric heating structure 32 to improve the heating power, and the automation degree is higher. In addition, the casing 1 is provided with heat dissipation holes, and the heat dissipation fan 14 is installed at the heat dissipation holes of the casing 1, so that heat and gas are prevented from being continuously accumulated in the drying cavity, and the safety of the whole equipment is ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A spray dryer for pig blood protein powder is characterized by comprising a machine shell, an atomizer and a hot gas generator, wherein the atomizer and the hot gas generator are installed on the machine shell;
the lower part of the drying cavity is provided with a flow guide hopper which is of a funnel structure with an upward hopper opening, a flexible cylinder cover is connected between the flow guide hopper and the upper part of the drying cavity, and the flexible cylinder cover is provided with air-permeable powder filtering micropores; the air outlets are arranged on the outer side of the atomizing nozzle, and the air flow directions of the air outlets are obliquely downward and intersect with the atomizing direction of the atomizing nozzle.
2. The spray dryer of porcine blood protein powder according to claim 1, wherein the air flow direction of the plurality of air outlets and the spray direction of the spray outlet are focused on the same intersection point position respectively.
3. The spray dryer of porcine blood protein powder according to claim 2, wherein the housing comprises a drying cylinder wall and a top cover, the spray opening is arranged at the center of the top cover, the plurality of air outlets are circumferentially arranged at intervals at the periphery of the spray opening, and the upper edge of the flexible cylinder cover is fixed at the outer side of the plurality of air outlets.
4. The spray dryer of porcine blood protein powder according to any one of claims 1 to 3, wherein the flexible cylinder cover is made of any one of synthetic fiber filter cloth, glass fiber filter cloth, cotton canvas or non-woven filter cloth.
5. The spray dryer of porcine blood protein powder according to claim 1, wherein the flow guide hopper comprises a conical hopper part and a conduit part, the conical hopper part is in floating connection with the drying cylinder wall, the casing further comprises a bottom plate arranged at the lower part of the drying cylinder wall, a through hole is arranged on the bottom plate, and the conduit part of the flow guide hopper is inserted into the through hole.
6. The spray dryer of porcine blood protein powder according to claim 5, wherein at least two elastic members are connected between the conical hopper portion and the drying cylinder wall, and the at least two elastic members extend along the radial direction of the conical hopper portion.
7. The spray dryer of porcine blood protein powder according to claim 1, wherein the lower part of the flow guide hopper is further provided with a feeding mechanism, the feeding mechanism comprises a feeding barrel and a central shaft, the outer part of the central shaft is provided with spirally arranged bristles, the front barrel wall of the feeding barrel is provided with a vent hole, the inner side of the vent hole is further provided with an air-permeable powder filtering cloth, and the bristles are in friction fit with the air-permeable powder filtering cloth.
8. The spray dryer of pig blood protein powder according to claim 1, wherein the hot air generator comprises an air inlet cylinder, an electric heating structure and an air inlet fan, the electric heating structure is fixed inside the air inlet cylinder, the air inlet fan is arranged at one end of the air inlet cylinder, and the hot air pipeline is connected to the other end of the air inlet cylinder.
9. The spray dryer of pig blood protein powder according to claim 8, wherein a temperature sensor is disposed inside the hot air pipeline near the exhaust port, the temperature sensor, the electric heating structure and the air inlet fan are respectively connected with a control circuit board, the temperature sensor is used for detecting the temperature of hot air, and the control circuit board is used for receiving a temperature signal sent by the temperature sensor and adjusting the heating power of the electric heating structure according to the temperature signal.
10. The spray dryer of pig blood protein powder according to claim 1, wherein the housing is provided with heat dissipation holes, and a heat dissipation fan is installed at the heat dissipation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715830.2A CN113244643A (en) | 2021-06-24 | 2021-06-24 | Spray dryer of pig blood protein powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715830.2A CN113244643A (en) | 2021-06-24 | 2021-06-24 | Spray dryer of pig blood protein powder |
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| CN113244643A true CN113244643A (en) | 2021-08-13 |
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| CN202110715830.2A Pending CN113244643A (en) | 2021-06-24 | 2021-06-24 | Spray dryer of pig blood protein powder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773943A (en) * | 2021-08-17 | 2021-12-10 | 王晓丽 | Probiotics production equipment and production method for improving intestinal tracts |
| CN114534281A (en) * | 2022-02-25 | 2022-05-27 | 江苏三吉利化工股份有限公司 | Hydroquinone spray drying device and method |
-
2021
- 2021-06-24 CN CN202110715830.2A patent/CN113244643A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773943A (en) * | 2021-08-17 | 2021-12-10 | 王晓丽 | Probiotics production equipment and production method for improving intestinal tracts |
| CN114534281A (en) * | 2022-02-25 | 2022-05-27 | 江苏三吉利化工股份有限公司 | Hydroquinone spray drying device and method |
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