Yeast extract mother liquor decolorizing device

Abstract

The utility model discloses a yeast extract mother liquor decolorizing device, which belongs to the technical field of yeast extract production, and adopts the technical scheme that the yeast extract mother liquor decolorizing device comprises a decolorizing tank, the top of the decolorizing tank is communicated with a feeding hole, and a stirring and scraping structure is arranged in the decolorizing tank. Yeast extract mother liquor and activated carbon are added into the decolorizing tank through the feeding port, the controller starts the stirring and scraping structure, and the stirring and scraping structure can promote the activated carbon and the mother liquor to be fully mixed, accelerate the decolorizing reaction, improve the efficiency and shorten the mother liquor retention time and can also scrape and clean the bottom side and the inner wall of the decolorizing tank to avoid precipitation and wall adhesion; the discharge valve is opened through the controller, the mother liquor is discharged into the filter box at the bottom from the decolorizing tank through the discharge valve, in the filter box, the mother liquor is sequentially subjected to multi-layer filtration through the small-hole filter screen, the fine filter screen and the superfine filter screen, and the filtered mother liquor passes through the three-way pipe and then is discharged to other tank bodies through the opened liquid outlet valve to be collected.

Description

Technical Field

[0001] This utility model relates to the field of yeast extract production technology, and in particular to a yeast extract mother liquor decolorization device. Background Technology

[0002] Yeast extract has a wide range of applications in food, medicine and other fields. In the production process of yeast extract, decolorization of the mother liquor is one of the key steps. At present, common methods for decolorizing yeast extract mother liquor include activated carbon adsorption and ion exchange resin.

[0003] While the activated carbon adsorption method commonly used for decolorizing yeast extract mother liquor has some effect, the corresponding devices have significant defects. In traditional activated carbon adsorption decolorization devices, although activated carbon has a good adsorption capacity for pigments, it is difficult to completely separate it from the mother liquor. When small food processing plants use simple filtration equipment, activated carbon particles are easily left in the product. This not only affects the purity of the product and causes a decline in product quality, but also seriously reduces the product's market competitiveness. In addition, some decolorization devices based on activated carbon adsorption are not designed reasonably and lack precise control of reaction conditions, resulting in low decolorization efficiency, excessive residence time of the mother liquor in the device, and incomplete decolorization process, which makes it difficult to meet the growing market demand for yeast extract. At the same time, there is a lack of effective design in terms of activated carbon recycling, which easily leads to resource waste and increases production costs.

[0004] To address this, a decolorization device for yeast extract mother liquor is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a decolorization device for yeast extract mother liquor. This device addresses the shortcomings of existing activated carbon adsorption methods, which, while effective, suffer from significant defects. In traditional activated carbon adsorption decolorization devices, although activated carbon has good adsorption capacity for pigments, it is difficult to completely separate them from the mother liquor. When small food processing plants use simple filtration equipment, activated carbon particles easily remain in the product, affecting product purity, reducing product quality, and severely lowering market competitiveness. Furthermore, some decolorization devices based on activated carbon adsorption are poorly designed, lacking precise control of reaction conditions, resulting in low decolorization efficiency, excessively long residence time of the mother liquor within the device, and insufficient decolorization process, failing to meet the growing market demand for yeast extract. Additionally, there is a lack of effective design for activated carbon recycling, easily leading to resource waste and increased production costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a decolorizing device for yeast extract mother liquor, comprising a decolorizing tank, an inlet connected to the top of the decolorizing tank, a stirring structure provided inside the decolorizing tank, a drain valve connected to the bottom of the decolorizing tank, a filter assembly provided at the bottom of the drain valve, and a controller provided on the front side of the filter assembly;

[0007] The filtration assembly includes a filter box connected to the bottom of the drain valve. The front side of the filter box is bolted to the rear side of the controller. A slide is bolted to the right side inside the filter box. Small-pore filter screen, fine filter screen, and ultra-fine filter screen are respectively installed inside the left slide, middle slide, and right slide. A three-way pipe is connected to the right side of the filter box. A liquid outlet valve is connected to the rear side of the three-way pipe. A flushing valve is connected to the front side of the three-way pipe. Both the flushing valve and the liquid outlet valve are electrically connected to the controller. An activated carbon recovery structure is provided at the bottom of the filter box.

[0008] Preferably, the agitation structure includes a motor bolted to the top of the decolorization tank, the motor being electrically connected to a controller, and the output end of the motor penetrating through the top of the decolorization tank.

[0009] Preferably, the output end of the motor is fixedly connected to a shaft, and a propeller blade is bolted to the outside of the shaft.

[0010] Preferably, a scraping arc blade is bolted to the bottom of the outer side of the shaft, the bottom of the scraping arc blade is in contact with the bottom side of the decolorization tank, and a scraping wall arc blade is fixedly connected to the outer side of the top of the scraping arc blade, the outer side of the scraping wall arc blade is in contact with the inner wall of the decolorization tank.

[0011] Preferably, the activated carbon recovery structure includes a hopper embedded in the bottom of the filter box, the hopper being located between adjacent slides.

[0012] Preferably, the bottom of the hopper is connected to a recovery valve, the recovery valve is electrically connected to the controller, and the bottom of the recovery valve is connected to a recovery pipe.

[0013] Preferably, a temperature sensor and a pH sensor are respectively provided on the right side of the decolorization tank. The sensing ends of the temperature sensor and the pH sensor are both located inside the decolorization tank, and the temperature sensor and the pH sensor are both electrically connected to the controller.

[0014] Preferably, an electric heating tube is provided on the rear side inside the decolorizing tank, and the electric heating tube is electrically connected to the controller. A cooling water coil is embedded on the outer side of the decolorizing tank. The top and bottom of the right side of the cooling water coil are respectively connected to an inlet valve and an outlet valve. Both the inlet valve and the outlet valve are electrically connected to the controller. The top of the left side of the decolorizing tank is respectively connected to an acid liquid pilot valve and an alkali liquid pilot valve. Both the acid liquid pilot valve and the alkali liquid pilot valve are electrically connected to the controller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application incorporates a scraping structure and a filtration assembly. Yeast extract mother liquor and activated carbon are added to the decolorization tank through the inlet. The controller activates the scraping structure, which not only promotes thorough mixing of activated carbon and mother liquor, accelerating the decolorization reaction, improving efficiency, and reducing mother liquor residence time, but also scrapes and cleans the bottom and inner walls of the decolorization tank, preventing sedimentation and adhesion. After decolorization, the controller opens the drain valve, and the mother liquor flows from the decolorization tank through the drain valve into the bottom filter box. In the filter box, the mother liquor undergoes multi-layer filtration through a small-pore filter, a fine filter, and an ultra-fine filter. The filtered mother liquor then passes through a three-way pipe and is discharged to other tanks for collection via an open outlet valve. When it is necessary to clean and collect activated carbon, the outlet valve is closed and the flushing valve is opened. The flushing water flows through the flushing valve and the three-way pipe to backwash the ultra-fine filter, the fine filter, and the small-pore filter, causing the adhered activated carbon particles to detach and fall into the bottom recovery structure. This overall coordination effectively intercepts activated carbon particles, reduces the residue in the product, and improves product purity, quality, and market competitiveness.

[0017] 2. This application incorporates an activated carbon recovery structure. When backwashing ultrafine, fine, and small-pore filters, the activated carbon recovery structure is activated, allowing for the centralized recovery of detached activated carbon particles for reprocessing. This avoids resource waste caused by indiscriminate disposal, effectively reduces production costs, and, in conjunction with components such as the flushing valve, enables timely cleaning of the filter components, ensuring stable filtration performance, extending the service life of the filter components, and further improving production efficiency. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the yeast extract mother liquor decolorization device of this utility model;

[0019] Figure 2 This is a structural diagram of the decolorizing tank of this utility model;

[0020] Figure 3 This is a structural diagram of the agitator structure of this utility model;

[0021] Figure 4 This is a structural diagram of the cooling water coil of this utility model;

[0022] Figure 5 This is a structural diagram of the filter assembly of this utility model;

[0023] Figure 6 This is a structural diagram of the activated carbon recovery structure of this utility model.

[0024] In the diagram: 1. Decolorization tank; 2. Feed inlet; 3. Stirring structure; 31. Motor; 32. Shaft; 33. Propeller blades; 34. Bottom scraper; 35. Wall scraper; 4. Exhaust valve; 5. Filter assembly; 51. Filter box; 52. Slide frame; 53. Small-pore filter screen; 54. Fine filter screen; 55. Ultrafine filter screen; 56. T-connector; 57. Discharge valve; 58. Flushing valve; 59. Activated carbon recovery structure; 591. Discharge hopper; 592. Recovery valve; 593. Recovery pipe; 6. Controller; 7. Temperature sensor; 8. pH sensor; 9. Electric heating element; 10. Cooling water coil; 11. Inlet valve; 12. Outlet valve; 13. Acid pilot valve; 14. Alkali pilot valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 The present invention provides the following technical solution:

[0027] A decolorizing device for yeast extract mother liquor includes a decolorizing tank 1, a feed inlet 2 connected to the top of the decolorizing tank 1, a stirring structure 3 provided inside the decolorizing tank 1, a drain valve 4 connected to the bottom of the decolorizing tank 1, a filter assembly 5 provided at the bottom of the drain valve 4, and a controller 6 provided at the front of the filter assembly 5.

[0028] The filter assembly 5 includes a filter box 51 connected to the bottom of the drain valve 4. The front side of the filter box 51 is bolted to the rear side of the controller 6. A slide 52 is bolted to the right side inside the filter box 51. The left slide 52, the middle slide 52 and the right slide 52 are respectively provided with a small hole filter screen 53, a fine filter screen 54 and an ultrafine filter screen 55. A three-way pipe 56 is connected to the right side of the filter box 51. A liquid outlet valve 57 is connected to the rear side of the three-way pipe 56. A flushing valve 58 is connected to the front side of the three-way pipe 56. Both the flushing valve 58 and the liquid outlet valve 57 are electrically connected to the controller 6. An activated carbon recovery structure 59 is provided at the bottom of the filter box 51.

[0029] In this embodiment, by setting up the agitation structure 3, the filter assembly 5, and the controller 6, efficient, stable, and environmentally friendly decolorization of yeast extract mother liquor is achieved. During operation, the mother liquor and activated carbon enter the decolorization tank 1 through the feed inlet 2. The controller 6 activates the agitation structure 3, which not only allows the mother liquor and activated carbon to mix thoroughly, accelerating the decolorization reaction, improving efficiency, and reducing the residence time of the mother liquor, but also scrapes the inner wall and bottom of the decolorization tank 1 to prevent sedimentation and adhesion. After decolorization is completed, the controller 6 opens the drain valve 4, and the mother liquor flows into the filter box 51. The filter box 51 contains a small-pore filter screen 53 and a fine filter screen 54. Fine filter 54 and ultrafine filter 55 perform multi-layer filtration of the mother liquor, effectively intercepting activated carbon particles. The filtered mother liquor is discharged to other tanks for collection through three-way pipe 56 and open outlet valve 57. Then, when it is necessary to clean and recover activated carbon, controller 6 closes outlet valve 57 and opens flushing valve 58. The flushing water backwashes the filter screen, causing activated carbon particles to detach. At this time, the activated carbon recovery structure 59 can centrally recover activated carbon, avoiding resource waste and reducing costs. At the same time, it can also clean the filter component 5 in time, ensuring stable filtration effect and extending its service life.

[0030] Specifically, such as Figure 3 As shown, the agitation structure 3 includes a motor 31 bolted to the top of the decolorization tank 1. The motor 31 is electrically connected to the controller 6, and the output end of the motor 31 passes through the top of the decolorization tank 1.

[0031] Specifically, such as Figure 3 As shown, the output end of the motor 31 is fixedly connected to a shaft 32, and a propeller blade 33 is bolted to the outside of the shaft 32.

[0032] Specifically, such as Figure 3 As shown, a scraping arc blade 34 is bolted to the bottom of the outer side of the shaft 32. The bottom of the scraping arc blade 34 contacts the bottom side of the decolorizing tank 1. A scraping wall arc blade 35 is fixedly connected to the outer side of the top of the scraping arc blade 34. The outer side of the scraping wall arc blade 35 contacts the inner wall of the decolorizing tank 1.

[0033] In this embodiment: By setting up the agitation structure 3, when the yeast extract mother liquor and activated carbon enter the decolorization tank 1 through the feed inlet 2, the controller 6 starts the motor 31. The motor 31 drives the shaft 32 to rotate, and the propeller blades 33 on the outside of the shaft 32 rotate accordingly, strongly agitating the mother liquor and activated carbon, promoting full mixing, accelerating the pigment adsorption reaction, significantly improving the decolorization efficiency, and shortening the mother liquor residence time. At the same time, the bottom scraping arc blade 34 at the bottom of the shaft 32 is in close contact with the bottom of the decolorization tank 1, and the outer wall scraping arc blade 35 is in contact with the inner wall of the tank. When the shaft 32 rotates, the bottom scraping arc blade 34 and the wall scraping arc blade 35 scrape synchronously, effectively removing the residual mother liquor and activated carbon sediment on the bottom and inner wall of the decolorization tank 1, preventing the phenomenon of sticking to the wall, ensuring a smooth decolorization process, and facilitating subsequent cleaning.

[0034] Specifically, such as Figure 6 As shown, the activated carbon recovery structure 59 includes a hopper 591 embedded in the bottom of the filter box 51, and the hopper 591 is located between adjacent carriages 52.

[0035] Specifically, such as Figure 6 As shown, the bottom of the hopper 591 is connected to a recovery valve 592, which is electrically connected to the controller 6. The bottom of the recovery valve 592 is connected to a recovery pipe 593.

[0036] In this embodiment: By setting up an activated carbon recovery structure 59, when it is necessary to clean the small-pore filter 53, fine filter 54, and ultrafine filter 55 inside the filter box 51, the controller 6 closes the liquid outlet valve 57 and opens the flushing valve 58. The flushing water backwashes the ultrafine filter 55, fine filter 54, and small-pore filter 53, causing the activated carbon particles to detach and fall off. At this time, the discharge hopper 591 embedded in the bottom of the filter box 51 uses its own funnel-shaped structure to collect and guide the falling activated carbon particles. Through the recovery valve 592 connected to the bottom of the discharge hopper 591, the recovery valve 592 is opened under the control of the controller 6. The activated carbon particles are collected and recycled through the recovery pipe 593 for further processing. In this way, the waste of resources caused by the random disposal of activated carbon is avoided, production costs are reduced, and the residual activated carbon in the small-pore filter 53, fine filter 54, and ultrafine filter 55 is cleaned in time, ensuring stable operation of the filter in subsequent use and extending its service life.

[0037] Specifically, such as Figure 4 As shown, a temperature sensor 7 and a pH sensor 8 are respectively installed on the right side of the decolorization tank 1. The sensing ends of the temperature sensor 7 and the pH sensor 8 are both located inside the decolorization tank 1, and the temperature sensor 7 and the pH sensor 8 are both electrically connected to the controller 6.

[0038] Specifically, such as Figure 4 As shown, an electric heating tube 9 is installed on the rear side inside the decolorizing tank 1. The electric heating tube 9 is electrically connected to the controller 6. A cooling water coil 10 is embedded on the outer side of the decolorizing tank 1. The top and bottom of the right side of the cooling water coil 10 are respectively connected to an inlet valve 11 and an outlet valve 12. Both the inlet valve 11 and the outlet valve 12 are electrically connected to the controller 6. The top of the left side of the decolorizing tank 1 is respectively connected to an acid liquid pilot valve 13 and an alkali liquid pilot valve 14. Both the acid liquid pilot valve 13 and the alkali liquid pilot valve 14 are electrically connected to the controller 6.

[0039] In this embodiment: by setting a temperature sensor 7, a pH sensor 8, an electric heating element 9, a cooling water coil 10, an inlet valve 11, an outlet valve 12, an acid pilot valve 13, and an alkali pilot valve 14, the temperature sensor 7 and the pH sensor 8 monitor the temperature and pH of the mother liquor in the decolorization tank 1 in real time and feed the data back to the controller 6. When the temperature is lower than the set value, the controller 6 starts the electric heating element 9 to heat the mother liquor in the decolorization tank 1. If the temperature is too high, the inlet valve 11 and the outlet valve 12 are opened to allow the cooling water to circulate in the coil and cool the mother liquor in the decolorization tank 1, ensuring that the decolorization reaction in the decolorization tank 1 is carried out at a suitable temperature. If the pH sensor 8 detects that the pH deviates from the set range, the controller 6 automatically opens the acid pilot valve 13 or the alkali pilot valve 14 to add an appropriate amount of acid or alkali to adjust the reaction environment. The multiple components work together to create stable and efficient conditions for the decolorization reaction, significantly improving the decolorization effect and product quality.

[0040] Working principle: In the process of using the yeast extract mother liquor decolorization device, the mother liquor and activated carbon first enter the decolorization tank 1 through the feed inlet 2. After receiving the start signal, the controller 6 starts the motor 31. The motor 31 drives the shaft 32 to rotate at high speed, which in turn drives the propeller blades 33 to rotate rapidly, forming a strong stirring force in the tank. This ensures that the mother liquor and activated carbon are fully mixed, expands the contact area, accelerates the decolorization reaction, and shortens the decolorization time. At the same time, the bottom scraper 34 at the bottom of the shaft 32 and the outer wall scraper 35 continuously scrape the bottom and inner wall of the tank during rotation, removing the mother liquor and activated carbon precipitates. To prevent adhesion to the walls and maintain cleanliness inside the tank, after decolorization, the controller 6 opens the drain valve 4 according to a preset program, allowing the mother liquor to flow into the filter box 51. It undergoes multi-layer filtration through a small-pore filter 53, a fine filter 54, and an ultrafine filter 55. The different pore sizes of the filters, from coarse to fine, intercept activated carbon particles, reducing the amount of residual activated carbon in the mother liquor. The filtered mother liquor is then transported to other tanks for collection and processing via a three-way pipe 56 and an open outlet valve 57. As filtration progresses, the activated carbon particles accumulated on the small-pore filter 53, fine filter 54, and ultrafine filter 55 affect the filtration efficiency. When cleaning the small-pore filter 53 and fine filter is necessary... When the ultrafine filter 54 and ultrafine filter 55 are in operation, the controller 6 first closes the outlet valve 57, then opens the flushing valve 58. The flushing water flows back into the filter box 51, forcefully flushing the ultrafine filter 55, fine filter 54, and small-pore filter 53, causing the activated carbon particles to detach and fall to the bottom of the filter box 51. The funnel-shaped discharge hopper 591 at the bottom collects the activated carbon particles. The controller 6 opens the recovery valve 592, and under the action of gravity, the particles and water are centrally transported for further treatment through the recovery pipe 593. This avoids resource waste, reduces costs, maintains filter performance, and ensures stable and efficient subsequent filtration. In addition, the temperature sensor 7 and pH sensor 8... Sensor 8 monitors the temperature and pH of the mother liquor in the tank in real time and feeds the data back to controller 6. When the temperature is too low, controller 6 activates electric heating tube 9 to raise the temperature. When the temperature is too high, it opens the inlet valve 11 and outlet valve 12 of cooling water coil 10 to circulate cooling water and cool down, ensuring that the reaction is at a suitable temperature. When pH sensor 8 detects an abnormal pH, if the acidity is too strong, controller 6 opens alkali valve 14 to add alkali. If the alkalinity is too strong, it opens acid valve 13 to add acid, thus precisely adjusting the pH to create the best environment for the decolorization reaction and significantly improving the decolorization effect and product quality.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A decolorizing device for yeast extract mother liquor, comprising a decolorizing tank (1), characterized in that: The top of the decolorizing tank (1) is connected to the feed inlet (2), the inside of the decolorizing tank (1) is provided with a stirring structure (3), the bottom of the decolorizing tank (1) is connected to the drain valve (4), the bottom of the drain valve (4) is provided with a filter assembly (5), and the front side of the filter assembly (5) is provided with a controller (6). The filter assembly (5) includes a filter box (51) connected to the bottom of the drain valve (4). The front side of the filter box (51) is bolted to the rear side of the controller (6). A slide (52) is bolted to the right side inside the filter box (51). The left slide (52), the middle slide (52) and the right slide (52) are respectively provided with a small hole filter (53), a fine filter (54) and an ultrafine filter (55). A three-way pipe (56) is connected to the right side of the filter box (51). A liquid outlet valve (57) is connected to the rear side of the three-way pipe (56). A flushing valve (58) is connected to the front side of the three-way pipe (56). Both the flushing valve (58) and the liquid outlet valve (57) are electrically connected to the controller (6). An activated carbon recovery structure (59) is provided at the bottom of the filter box (51).

2. The yeast extract mother liquor decolorizing device according to claim 1, characterized in that: The agitation structure (3) includes a motor (31) bolted to the top of the decolorization tank (1), the motor (31) being electrically connected to the controller (6), and the output end of the motor (31) penetrating the top of the decolorization tank (1).

3. The decolorizing device for yeast extract mother liquor according to claim 2, characterized in that: The output end of the motor (31) is fixedly connected to a shaft (32), and a propeller blade (33) is bolted to the outside of the shaft (32).

4. The yeast extract mother liquor decolorizing device according to claim 3, characterized in that: A scraping arc blade (34) is bolted to the bottom of the outer side of the shaft (32). The bottom of the scraping arc blade (34) contacts the bottom side of the decolorizing tank (1). A scraping wall arc blade (35) is fixedly connected to the outer side of the top of the scraping arc blade (34). The outer side of the scraping wall arc blade (35) contacts the inner wall of the decolorizing tank (1).

5. The yeast extract mother liquor decolorizing device according to claim 1, characterized in that: The activated carbon recovery structure (59) includes a hopper (591) embedded in the bottom of the filter box (51), the hopper (591) being located between adjacent slides (52).

6. The yeast extract mother liquor decolorizing device according to claim 5, characterized in that: The bottom of the hopper (591) is connected to a recovery valve (592), which is electrically connected to the controller (6). The bottom of the recovery valve (592) is connected to a recovery pipe (593).

7. The yeast extract mother liquor decolorizing device according to claim 1, characterized in that: A temperature sensor (7) and a pH sensor (8) are respectively installed on the right side of the decolorizing tank (1). The sensing ends of the temperature sensor (7) and the pH sensor (8) are both located inside the decolorizing tank (1). The temperature sensor (7) and the pH sensor (8) are both electrically connected to the controller (6).

8. The yeast extract mother liquor decolorizing device according to claim 1, characterized in that: An electric heating tube (9) is provided on the rear side inside the decolorizing tank (1). The electric heating tube (9) is electrically connected to the controller (6). A cooling water coil (10) is embedded on the outer side of the decolorizing tank (1). The top and bottom of the right side of the cooling water coil (10) are respectively connected to an inlet valve (11) and an outlet valve (12). Both the inlet valve (11) and the outlet valve (12) are electrically connected to the controller (6). The top of the left side of the decolorizing tank (1) is respectively connected to an acid liquid guide valve (13) and an alkali liquid guide valve (14). Both the acid liquid guide valve (13) and the alkali liquid guide valve (14) are electrically connected to the controller (6).

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