WO2020029313A1

WO2020029313A1 - Integrated solid-liquid state fermentation device for vinegar

Info

Publication number: WO2020029313A1
Application number: PCT/CN2018/100735
Authority: WO
Inventors: 朱胜虎; 李国权; 崔鹏景; 陈志娜; 李信; 张俊红
Original assignee: 江苏恒顺醋业股份有限公司
Priority date: 2018-08-10
Filing date: 2018-08-16
Publication date: 2020-02-13
Also published as: CN108913528A

Abstract

Provided is an integrated solid-liquid state fermentation device for vinegar, comprising a sieve plate (2) at a lower middle part of a box (1). The sieve plate (2) divides the box (1) into upper and lower cavities, wherein the upper cavity is provided therein with a solid material circulating fermentation system, and the lower cavity is provided with a temperature control system and a ventilation system. The box (1) is provided with a vinegar circulating and spraying system at an outer side thereof. The vinegar circulating and spraying system connects, by means of a pipe, a bottom part of the box (1) to a vinegar-spraying nozzle (54) at a top portion of the inside of the box (1).

Description

Vinegar solid-liquid integrated fermentation device

Technical field

The invention relates to the field of fermentation devices, in particular to a vinegar solid-liquid integrated fermentation device.

Background technique

At present, vinegar is mainly produced by solid-state fermentation. The solid-state fermentation method is mainly a fermentation tank. There are also some solid-state fermentation equipment used for vinegar fermentation, mainly rotary drum fermentation tanks and vertical reflux fermentation tanks. There are certain shortcomings. Rotary fermenter equipment has large energy consumption, difficulty in feeding and discharging, and low degree of automation of the entire process. The vertical reflux fermenter uses vinegar-halogen cycle instead of steaming to achieve the purpose of cooling and increasing oxygen. The backflow of time causes the vinegar mash to compact, making the fermentation uneven, the vinegar mash having insufficient dissolved oxygen, causing problems such as long fermentation cycles and poor product quality.

There is also a small amount of vinegar produced by liquid fermentation. Specifically, fermented wine vinegar is added to a commonly used ventilated liquid fermentation tank for fermentation. Although this production method has a short production cycle, White vinegar is the main ingredient and does not have the unique color and taste of vinegar produced by solid fermentation.

Vinegar fermentation is first solid-state fermentation. After a period of fermentation, liquid fermentation can effectively shorten the fermentation cycle, while retaining the unique color and taste of solid-state fermentation vinegar.

Currently there is no automated fermentation equipment that integrates solid state fermentation and liquid state fermentation.

Summary of the invention

Objective of the invention: In order to solve the problems existing in the prior art, the present invention provides an vinegar solid-liquid integrated fermentation device. The vinegar solid-state fermentation and liquid fermentation device are integrated into an integrated device, which has a high degree of automation and reduces the transportation of intermediate materials. Cost, equipment energy consumption is small, feed in and out is simple, and fermentation cycle is reduced.

Technical solution: In order to achieve the above object, the present invention can adopt the following technical solutions:

An vinegar solid-liquid integrated fermentation device includes a box body and a sieve plate with sieve holes provided in the middle and lower parts of the box body; the sieve plate divides the box body into two upper and lower cavities, and an upper cavity is provided with The solid material circulating fermentation system and the lower cavity are provided with a temperature control system and a ventilation system; the outer part of the box is also provided with a circulating vinegar leaching system, and the circulating vinegar leaching system is connected from the bottom of the box to the inside of the box through a pipeline Vinegar sprinkler on top;

The aeration system supplies oxygen to the inside of the box; the solid material circulating fermentation system realizes the cyclic fermentation of solid materials. After the solid fermentation is completed, the circulating vinegar leaching system performs vinegar leaching, and the vinegar liquid that passes through passes through the box in turn. The solid material circulating fermentation system of the upper cavity and the sieve plate enter the lower cavity to perform liquid fermentation at the bottom, and are finally discharged through a discharge valve provided at the bottom of the box.

The sieve plate is movably connected to the box body, which is convenient for disassembly and later maintenance and cleaning, and is located 1 / 4-1 / 2 away from the bottom of the box body, so that the upper cavity has enough space for solid fermentation; The sieve plate is provided with a plurality of sieve holes for discharging the vinegar liquid to the lower cavity and the upward circulation of air.

In some embodiments, the solid material circulating fermentation system includes a first feeding hopper, a one-way screw conveyor, a material conveyor, a second feeding hopper, and a two-way screw conveyor;

The material conveyor belts are two or more, arranged in parallel and staggered in the box from top to bottom; the adjacent two material conveyor belts rotate in opposite directions; the starting end of the one-way screw conveyor is set at Outside the box, the conveying end is located inside the box and located above the uppermost material conveyor;

The first feeding hopper is set at the starting end of the one-way screw conveyor; the second feeding hopper is set under one end of the bottommost material conveyor; the two-way screw conveyor is set under the second feeding hopper and two The ends extend through the two side walls of the box to the outside of the box respectively. One end of the two-way screw conveyor is provided with a first discharge port for circulating fermentation materials above the first feeding hopper. The other end is provided with vinegar residue. Second outlet.

Furthermore, the lengths of the material conveyor belts are all equal to 3/4 of the width of the box body. The vertical distance between adjacent material conveyor belts is 30-100cm; the horizontal staggered distance is 20-100cm.

The longitudinal section of the material conveyor is a structure with a recessed middle portion, forming a trough-like structure, which increases its stability when receiving and transporting materials. In addition, it is made of food-grade materials to ensure the food safety of vinegar liquid. Small holes are more conducive to the downward flow of vinegar when vinegar is poured.

In some embodiments, the temperature control system includes a hollow jacket provided at the bottom of the lower cavity and a side wall, a hot water inlet valve and a cooling water inlet valve provided at a lower position of the hollow jacket and located outside the box, A hot water return valve and a cooling water return valve provided at a high position of the hollow jacket and outside the box body, and a temperature electrode provided on the inner wall of the lower cavity.

A pH electrode is also provided inside the lower cavity, and is used to detect the pH of the fermentation broth in real time during the liquid fermentation process.

In some embodiments, the circulating vinegar leaching system further includes a circulation pipe extending from the bottom of the box to the side and finally to the top vinegar sprayer; a filter, a circulation valve, and a brewing water inlet valve are arranged on the circulation pipe in this order. And circulation pump.

In some embodiments, the ventilation duct includes an air distributor provided at the bottom of the box, and an air filter and an air intake valve are provided at an air inlet outside the box communicating with the air distributor; the top of the box With exhaust valve.

The side wall of the upper cavity of the box is provided with a side door; it is more convenient to clean and maintain the components of the solid material circulating fermentation system in the upper cavity.

Beneficial effects: The vinegar-solid-liquid integrated fermentation device disclosed in the present invention has the following advantages compared with the prior art: (1) the solid fermentation device and the liquid fermentation device are integrated into an integrated structure, which saves equipment costs and fermentation The cost of material transportation in the process; (2) providing sufficient oxygen supply and cyclic transportation for fermentation, realizing multiple cycles of fermentation of solid materials, improving fermentation efficiency and fermentation effect; (3) greatly shortening the fermentation cycle and improving fermentation efficiency; (4) The equipment is suitable for large-scale production amplification, reducing production costs and improving economic benefits.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of the internal and external structure of a fermentation device according to Embodiment 1 of the present invention;

2 is a schematic plan view of a single material conveyor belt according to Embodiment 1 of the present invention;

FIG. 3 is a schematic left perspective view of a part of a single material conveyor belt structure in Embodiment 1 of the present invention.

detailed description

The present invention is further clarified below with reference to the drawings and specific embodiments:

Example 1:

Please refer to FIG. 1 to FIG. 2. The present invention discloses a vinegar solid-liquid integrated fermentation device, which includes a box 1 and a sieve plate 2 provided with sieve holes in the box 1; The box 1 is movably connected to facilitate disassembly and subsequent maintenance and cleaning. The sieve plate 2 is located at a quarter of the distance from the bottom of the box 1, so that the upper cavity has sufficient space; The sieve hole is used for discharging the vinegar liquid to the lower cavity and the upward circulation of air.

The sieve plate 2 divides the box 1 into two upper and lower cavities. A solid material circulating fermentation system is provided in the upper cavity, and a temperature control system and a ventilation system are provided in the lower cavity. A circulating shower is also provided on the outer side of the box 1. Vinegar system, the circulating vinegar leaching system communicates from the bottom of the box 1 to the vinegar shower head 54 provided on the inner top of the box 1 through a pipeline; the side wall of the upper cavity of the box 1 is provided with a side door 8; Cleaning and maintenance of various components of the solid-state solid material circulating fermentation system.

The solid material circulating fermentation system includes a first feeding hopper 31, a one-way screw conveyor 32, a material conveying belt 33, a second feeding hopper 34, and a two-way screw conveyor 35;

There are 8 material conveyor belts 33, which are arranged in parallel and staggered in the cabinet 1 from top to bottom. The width of each material conveyor belt 33 is slightly smaller than the width of the corresponding direction of the box, and the lengths are equal, specifically box 1. The width in the corresponding direction is 3/4, and the vertical distance between adjacent material conveyors 33 is 30cm; the horizontal staggered distance is 20cm. Please refer to FIG. 2 to FIG. 3. The longitudinal section of the material conveyor 33 is a structure with a recessed middle portion, forming a trough-like structure, which increases its stability when receiving and transporting materials, and is made of food-grade materials to ensure The vinegar liquid is safe for food. The surface of the material conveyor belt 33 is provided with a plurality of small holes 331, which is more conducive to the downward flow of the vinegar liquid when vinegar is poured. The two adjacent material conveyor belts 33 rotate in opposite directions; the rotation speeds are kept consistent.

The starting end of the one-way screw conveyor 32 is set outside the box 1, and the end of the conveying is set inside the box 1 and is located above the uppermost material conveyor 33; the first feeding hopper 31 is set in one direction The conveying start end of the screw conveyor 32; the second feed hopper 34 is provided below one end of the bottommost material conveyor 33; the two-way screw conveyor 35 is provided below the second feed hopper 34 and the two ends penetrate the box 1 respectively The two side walls extend to the outside of the box 1. One end of the two-way screw conveyor 35 is provided with a first discharge port 351 for conveying circulating fermentation materials above the first feeding hopper 31;第二出口口 352。 The second outlet 352.

The temperature control system includes a hollow jacket 41 provided at the bottom of the lower cavity and a side wall, and a hot water inlet valve 42 and a cooling water inlet valve 44 provided at a lower position of the hollow jacket 41 and located outside the casing 1. The hot water return valve 43 and the cooling water return valve 45 at the high position of the hollow jacket 41 and outside the cabinet 1 and the temperature electrode 46 and the pH electrode 47 provided on the inner wall of the lower cavity; during the liquid fermentation process For real-time detection of pH of fermentation broth.

The circulating vinegar leaching system further includes a circulation pipe 53 extending from the bottom of the cabinet 1 to the side and finally to the top vinegar spraying nozzle 54; the filter 55, the circulation valve 56, and the brewing water inlet valve are arranged on the circulation pipe 53 in this order. 51 和 circulating pump 52.

The ventilation duct includes an air distributor 61 provided at the bottom of the box, and an air filter 63 and an air intake valve 62 are provided at an air inlet outside the box 1 communicating with the air distributor 61; the top of the box 1 An exhaust valve 64 is provided.

work process:

First, solid material circulation fermentation is performed: the one-way screw conveyor 32 and all the material conveyor belts 33 are turned on, the two-way screw conveyor 35 is turned on and the rotation direction is such that the materials are transported in the direction of the first feeding hopper 31. The mixed vinegar solid fermentation material is slowly added to the first feeding hopper 31, and the material is conveyed to the top material conveyor 33 by the one-way screw conveyor 32. While the material is fermenting, it is rotated by the material conveyor 33 Go forward to the other end and fall to the next layer of material conveyor 33. The material is conveyed while fermenting, until it is transferred to one end of the bottom material conveyor 33, then it is dropped into the second feed hopper 34 and conveyed by two-way spiral The machine 35 conveys to the first discharge port 351, enters the first feed hopper 31 again, and then conveys to the top material conveying belt 33 through the one-way screw conveyor 32 to realize the circulating fermentation of solid materials.

During the solid-state circulating fermentation of the material, the air intake valve 62 is opened, and the air purified by the air filter 63 enters the air distributor 61 through the air intake valve 62, enters the interior of the cabinet 1, and then passes through the sieve plate 2. The material conveying belt 33 of each layer is finally discharged from the exhaust valve 64.

The temperature electrode 46 is used for real-time monitoring of the internal temperature of the cabinet 1. If the temperature is too high, the cooling water inlet valve 44 and the cooling water return valve 45 are automatically opened for temperature control; if the temperature is too low, the hot water inlet valve is automatically opened 42 and the hot water return valve 43 perform temperature control.

After the solid-state circulating fermentation for a certain period of time, the brewing water inlet valve 51 and the circulation pump 52 are opened, and the brewing water enters the vinegar spray head 54 on the top of the box through the circulation pipe 53 and becomes a small mist sprayed into the box 1, and then With the increase of the injection of brewing water, the brewing water dissolves various acids in the solid materials, forming vinegar liquid through the small holes of the material conveyor belt 33, filtering to the next layer of material conveyor belt 33, and successively pouring down the vinegar layer by layer, Until the vinegar liquid passes through the sieve holes on the sieve plate 2 and enters the bottom of the lower cavity of the box 1.

After all the organic acids in the solid materials are dissolved, the brewing water inlet valve 51 is closed to stop leaching of vinegar. At this time, the material conveying direction of the two-way screw conveyor 35 is reversed, and the vinegar grains are discharged from the second discharge port 352. After the vinegar grains are discharged, the material conveying direction of the two-way screw conveyor 35 is reversed. Then, the mixed solid fermentation material is added from the first feeding hopper 31 to perform the next batch of fermentation.

The vinegar leached to the bottom of the cabinet 1 contains microorganisms such as acetic acid bacteria and the nutrients needed for its growth. It is directly subjected to liquid fermentation. During the fermentation process, the pH of the vinegar is detected in real time through the pH electrode 47. After the pH value reaches the required level, The discharge valve 7 is opened, and the vinegar liquid is discharged from the discharge port, and the solid fermentation and liquid fermentation of the vinegar are completed twice.

Example 2:

The implementation manner is basically the same as that of Example 1, except that the sieve plate is disposed in the box at a distance of 1/2 from the bottom of the box, and the material conveying belts are two, arranged in parallel and staggered from the top to the bottom. Inside the box; the width of each material conveyor belt is slightly smaller than the width in the corresponding direction of the box body, and the lengths are equal, specifically 1/2 of the width in the corresponding direction of box 1, the vertical distance between adjacent material conveyor belts is 100cm; horizontal The staggering distance is 100cm. (Not shown)

Claims

An vinegar solid-liquid integrated fermentation device includes a box body (1), which is also characterized by a sieve plate (2) with sieve holes provided in the middle and lower part of the box body (1); the sieve plate (2) The box (1) is divided into two upper and lower chambers. A solid material circulating fermentation system is provided in the upper chamber, and a temperature control system and a ventilation system are provided in the lower chamber. The outer part of the box (1) is also provided with a circulation. The vinegar leaching system, the circulating vinegar leaching system communicates from the bottom of the box (1) to the vinegar shower head (54) provided on the top of the box (1) through a pipeline;

The aeration system supplies oxygen to the inside of the box (1); the solid material circulating fermentation system realizes the circular fermentation of solid materials, and after the solid fermentation is completed, the circulating vinegar leaching system performs vinegar leaching, and the vinegar liquid is eluted in turn After the solid material circulating fermentation system through the upper cavity of the cabinet (1) and the sieve plate (2) enter the lower cavity, liquid fermentation is performed at the bottom, and finally discharged through a discharge valve (7) provided at the bottom of the cabinet (1). .
The vinegar solid-liquid integrated fermentation device according to claim 1, characterized in that the sieve plate (2) is movably connected to the box body (1) and is located 1 / 4- from the bottom of the box body (1). 1/2 place.
The vinegar solid-liquid integrated fermentation device according to claim 1, wherein the solid material circulating fermentation system comprises a first feeding hopper (31), a one-way screw conveyor (32), and a material conveyor belt (33). 2. The second feeding hopper (34) and the two-way screw conveyor (35);

The material conveyor belts (33) are two or more, and are arranged in parallel and staggered inside the box (1) from top to bottom; two adjacent material conveyor belts (33) rotate in opposite directions; the single The starting end of the conveying to the screw conveyor (32) is set outside the box body (1), and the conveying end is set inside the box body (1) and is located above the uppermost material conveyor belt (33);

The first feeding hopper (31) is set at the starting end of the one-way screw conveyor (32); a second feeding hopper (34) is set under one end of the bottommost material conveyor belt (33); the two-way screw The conveyor (35) is arranged below the second feeding hopper (34) and the two ends respectively extend through the two side walls of the box (1) and extend to the outside of the box (1); one end of the two-way screw conveyor (35) is provided There is a first discharge port (351) above the first feed hopper (31) for conveying circulating fermentation materials; and the other end is provided with a second discharge port (352) for discharging vinegar residue.
The vinegar solid-liquid integrated fermentation device according to claim 3, characterized in that the lengths of the material conveyor belts (33) are all equal to 3/4 of the width of the cabinet (1), and adjacent material conveyor belts (33) The vertical distance between them is 30-100cm; the horizontal staggered distance is 20-100cm.
The vinegar solid-liquid integrated fermentation device according to claim 3, characterized in that the longitudinal section of the material conveyor belt (33) is a structure with a recessed middle portion, and is made of a food-grade material, and a plurality of small surfaces are provided on the surface. Hole (331).
The vinegar solid-liquid integrated fermentation device according to claim 1, wherein the temperature control system comprises a hollow jacket (41) provided at the bottom of the lower cavity and a side wall, and provided in the hollow jacket (41) The hot water inlet valve (42) and the cooling water inlet valve (44) located at a low position and located outside the cabinet (1) are located at the high position of the hollow jacket (41) and return to the hot water outside the cabinet (1). A valve (43), a cooling water return valve (45), and a temperature electrode (46) provided on the inner wall of the lower cavity.
The vinegar solid-liquid integrated fermentation device according to claim 1 or 6, wherein a pH electrode (47) is further provided inside the lower cavity.
The vinegar-solid-liquid integrated fermentation device according to claim 1, wherein the circulating vinegar leaching system further comprises a circulation pipe extending from the bottom of the box body (1) to the side and finally to the top vinegar spray head (54). (53); a filter (55), a circulation valve (56), a brewing water inlet valve (51), and a circulation pump (52) arranged on the circulation pipe (53) in this order.
The vinegar solid-liquid integrated fermentation device according to claim 1, characterized in that the ventilation duct comprises an air distributor (61) provided at the bottom of the box, and a box (1) communicating with the air distributor (61). ) An air filter (63) and an air intake valve (62) are provided at the external air inlet; an exhaust valve (64) is provided on the top of the box (1).
The vinegar solid-liquid integrated fermentation device according to claim 1, characterized in that: a side door (8) is provided on a side wall of the upper cavity of the box body (1).