Brewer's grain dehydration system

Abstract

The utility model relates to a brewer's grain dewatering system which comprises a diluting tank, a frame plate filter press, a drying device and a collecting barrel, and the diluting tank is used for introducing brewer's grains and diluting the brewer's grains; the frame plate filter press is communicated with a discharge hole of the dilution tank and is used for separating the brewer's grains into filtrate and a filter cake; the drying device is communicated with a first discharge hole of the frame plate filter press and is used for drying a filter cake; and the collecting cylinder is communicated with a second discharge hole of the frame-plate filter press and is used for collecting filtrate.

Description

Technical Field

[0001] The utility model relates to the field of brewer's grains processing, in particular to a brewer's grains dehydration system. Background Art

[0002] Brewer's grains are the main by-product of the beer industry. They are the residues after soluble carbohydrates are extracted from barley seeds after fermentation. About 0.25 tons of brewer's grains are produced for every ton of beer produced. The annual output of brewer's grains in my country has reached more than 10 million tons and is still increasing. Brewer's grains are rich in protein, amino acids and trace elements, and have high nutritional value. Due to the beer production process, the moisture content of brewer's grains is very high, generally above 75%. After the brewer's grains are left in the air for a period of time, the residual ethanol and other substances are oxidized to form acetic acid, lactic acid, butyric acid and other free acids due to the oxidation of acetic acid bacteria and other microorganisms, which can easily cause the grains to become sour, so they need to be dehydrated, dried and stored in time.

[0003] At present, brewer's grains can be dehydrated by steam drying, spiral extrusion, or a combination of the two. For example, in the Chinese patent number 200920089747.3, spiral extrusion equipment is first used for dehydration, and then drying equipment is used for dehydration. However, due to the beer production process, the brewer's grains are finer, the dehydration effect is not good, and the solid content of the extruded liquid is high. Both the extruded liquid and the extruded grains need to be subsequently recycled, which increases the processing flow. If the drying process is directly used to treat the brewer's grains, such as patent 202123061309.6, due to the high moisture content of the brewer's grains, it faces excessively high operating costs, and the prolonged drying time will cause the loss of nutrients. Utility Model Content

[0004] Based on the above description, the utility model provides a brewer's grains dehydration system to solve the technical problems of poor brewer's grains drying effect or high drying cost.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A brewer's grain dehydration system, comprising:

[0007] A dilution tank, used for introducing the brewer's grains and achieving dilution of the brewer's grains;

[0008] A frame filter press is connected to the discharge port of the dilution tank and is used to separate the brewer's grains into filtrate and filter cake;

[0009] A drying device, connected to the first discharge port of the frame plate filter press, for drying the filter cake;

[0010] The collecting cylinder is connected to the second discharge port of the frame plate filter press and is used for collecting filtrate.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, a reflux pipe is connected between the collecting cylinder and the dilution tank.

[0013] Furthermore, a screening device is provided between the frame plate filter press and the drying device;

[0014] The drying device comprises a first dryer and a second dryer, wherein the first dryer and the second dryer are respectively used for drying the brewer's grains with different particle sizes formed by screening by the screening device.

[0015] Furthermore, the first dryer is a rotary dryer, and the second dryer is a rotary dryer or a fluidized bed dryer.

[0016] Furthermore, the screening device includes a cutting device, a screen and a bottom plate which are arranged in sequence from top to bottom, the discharge end of the screen is connected to the first dryer, and the discharge end of the bottom plate is connected to the second dryer.

[0017] Furthermore, the screen and the bottom plate are both arranged at an incline.

[0018] Furthermore, the frame plate filter press comprises a conveyor belt arranged at the bottom, and the discharge end of the conveyor belt is located directly above the cutting device;

[0019] The cutting device comprises a plurality of cutting blades which are crisscrossed, and the thickness of the cutting blades gradually becomes thinner in a direction away from the screen.

[0020] Furthermore, a first pipeline is connected between the dilution tank and the frame-plate filter press, and a diaphragm pump for transporting the brewer's grains to the frame-plate filter press is installed on the first pipeline.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0022] 1. The present application utilizes a frame plate filter press and a drying device to achieve drying of brewer's grains, wherein the frame plate filter press dehydrates the brewer's grains by squeezing the solids into filter cakes, thereby allowing fine filter residues to adhere to the filter cakes, resulting in a relatively pure filtrate and reduced secondary processing; at the same time, when the brewer's grains are initially dehydrated and then dried using a drying device, the moisture content of the brewer's grains is lower, the drying time is shorter, and it is more energy-efficient.

[0023] 2. A reflux pipe is connected between the collecting cylinder and the dilution tank so that the filtrate in the collecting cylinder can flow back into the dilution tank to dilute the brewer's grains, reduce the difficulty of drying the brewer's grains by adding external liquids, and reduce the contamination of the brewer's grains by external liquids.

[0024] 3. A screening device is provided between the frame filter press and the drying device, which can divide and screen the filter cake formed by the frame filter press. Filter residues of different particle sizes are dried with different dryers, which can reduce drying energy consumption and improve drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a brewer's grain dehydration system provided in Example 1 of the utility model;

[0026] Figure 2 A schematic structural diagram of a brewer's grain dehydration system provided in Example 2 of the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Dilution tank; 2. Frame filter press; 21. Conveyor belt; 3. Drying device; 31. First dryer; 32. Second dryer; 4. Collecting cylinder; 5. Reflux pipe; 6. Screening device; 61. Cutting device; 62. Screen; 63. Bottom plate; 7. First pipeline; 8. Diaphragm pump. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] Example 1

[0032] A brewer's grain dehydration system disclosed in Example 1 of the present application, referring to Figure 1 , including a dilution tank 1 and a frame filter press 2 which are arranged in sequence, the frame filter press 2 includes a first discharge port and a second discharge port, the first discharge port is connected to a drying device 3, and the second discharge port is connected to a collecting cylinder 4.

[0033] When dehydrating the brewer's grains, the brewer's grains are first placed in a dilution tank 1 for dilution, and the diluted brewer's grains are passed into a frame filter press 2, and the diluted brewer's grains are dehydrated by the frame filter press 2 to form a filter cake and a filtrate; the filter cake is then discharged from the first discharge port and sent to a drying device 3 for drying to achieve dehydration of the brewer's grains; at the same time, the filtrate is discharged through the second discharge port and collected in a collecting cylinder 4.

[0034] Furthermore, a reflux pipe 5 is connected between the collecting cylinder 4 and the dilution tank 1 of the present application, and part of the filtrate collected in the collecting cylinder 4 can be transported to the dilution tank 1 through the reflux pipe 5 to achieve dilution of the beer grains. Using the filtrate to dilute the beer grains can reduce the pollution of the external liquid to the beer grains, and reduce the introduction of the external liquid, which saves more resources.

[0035] Specifically, when the brewer's grains are dried for the first time, a diluent needs to be added from the outside. After the first dilution is completed to form a filtrate, the subsequent drying of the brewer's grains can be diluted with the formed filtrate.

[0036] Example 2

[0037] The difference between Example 2 and Example 1 is that, referring to Figure 2 A screening device 6 is further provided between the frame plate filter press 2 and the drying device 3. The screening device 6 is provided at the first discharge port, and the screening device 6 includes a cutting device 61, a screen 62 and a bottom plate 63 which are arranged in sequence from top to bottom. The filter cake formed by the frame plate filter press 2 is transported to the screening device 6, and is firstly cut by the cutting device 61. Specifically, the cutting device 61 includes a plurality of cutting blades arranged in a crisscross pattern, and the thickness of the cutting blades gradually becomes thinner in the direction away from the screen 62.

[0038] The filter cake blocks cut by the cutting device 61 fall onto the screen 62. After being screened by the screen 62, particles larger than the aperture of the screen 62 remain on the screen 62, and particles smaller than the space of the screen 62 fall onto the bottom plate 63. In addition, the screen 62 and the bottom plate 63 are both inclined, so that the filter cake blocks can be gradually discharged from the screen 62 and the bottom plate 63 along the slope surface of the screen 62 and the bottom plate 63 while being screened.

[0039] The drying device 3 includes a first dryer 31 and a second dryer 32, wherein the first dryer 31 is disposed at the discharge port of the screen 62, and the second dryer 32 is disposed at the discharge port of the bottom plate 63. Drying filter cakes of different particle sizes by using different types of dryers can improve the drying efficiency; wherein the first dryer 31 can be a rotary dryer, and the second dryer 32 can be a rotary dryer or a fluidized bed dryer.

[0040] By cutting the filter cake and then drying it, the drying efficiency can be improved, resulting in a better drying effect; further, the cut filter cake blocks are screened into different particle sizes and then dried using different types of dryers, which can adaptively dry the filter cake according to the drying requirements, making it more energy-efficient and efficient.

[0041] Furthermore, the frame filter press 2 also includes a conveyor belt 21 arranged at the bottom. When the frame filter press 2 is used to dehydrate the beer grains, multiple filter cakes can be formed at the same time. The conveyor belt 21 is arranged so that the filter cakes formed at different positions can all fall onto the conveyor belt 21 and be transported to the screening device 6 by the conveyor belt 21.

[0042] In addition, the discharge end of the conveyor belt 21 is arranged directly above the cutting device 61 and is spaced apart from the cutting device 61, so that the filter cake output by the conveyor belt 21 can fall onto the cutting blade. Under the action of gravity acceleration, the cutting device 61 can cut the filter cake more smoothly.

[0043] In an optional embodiment, a first pipeline 7 is connected between the dilution tank 1 and the frame filter press 2, and a diaphragm pump 8 is installed on the pipeline. Since the diaphragm pump 8 is more suitable for pumping viscous liquids with suspended solid particles, the diaphragm pump 8 can better achieve the pumping of diluted beer grains.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brewer's grain dehydration system, characterized in that: include: A dilution tank (1) is used to introduce brewer's grains and dilute the brewer's grains; A frame filter press (2) is connected to the discharge port of the dilution tank (1) and is used to separate the brewer's grains into filtrate and filter cake; A drying device (3), which is connected to the first discharge port of the frame plate filter press (2) and is used for drying the filter cake; The collecting cylinder (4) is connected to the second discharge port of the frame plate filter press (2) and is used to collect the filtrate.

2. A brewer's grain dehydration system according to claim 1, characterized in that: A reflux pipe (5) is connected between the collecting cylinder (4) and the dilution tank (1).

3. A brewer's grain dehydration system according to claim 1, characterized in that: A screening device (6) is provided between the frame plate filter press (2) and the drying device (3); The drying device (3) comprises a first drying machine (31) and a second drying machine (32), wherein the first drying machine (31) and the second drying machine (32) are respectively used to dry the beer grains of different particle sizes formed by screening by the screening device (6).

4. A brewer's grain dehydration system according to claim 3, characterized in that: The first dryer (31) is a rotary dryer, and the second dryer (32) is a rotary dryer or a fluidized bed dryer.

5. A brewer's grain dehydration system according to claim 3 or 4, characterized in that: The screening device (6) comprises a cutting device (61), a screen (62) and a bottom plate (63) which are arranged in sequence from top to bottom, the discharge end of the screen (62) being connected to the first dryer (31), and the discharge end of the bottom plate (63) being connected to the second dryer (32).

6. A brewer's grain dehydration system according to claim 5, characterized in that: The screen (62) and the bottom plate (63) are both arranged at an incline.

7. A brewer's grain dehydration system according to claim 5, characterized in that: The frame plate filter press (2) comprises a conveyor belt (21) arranged at the bottom, and the discharge end of the conveyor belt (21) is located directly above the cutting device (61); The cutting device (61) comprises a plurality of cutting blades arranged in a crisscross pattern, and the thickness of the cutting blades gradually becomes thinner in a direction away from the screen (62).

8. The brewer's grain dehydration system according to claim 1, characterized in that: A first pipeline (7) is connected between the dilution tank (1) and the frame filter press (2), and a diaphragm pump (8) is installed on the first pipeline (7) for transporting beer grains to the frame filter press (2).

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