High-efficiency continuous grain steaming machine and grain steaming method thereof

Abstract

The invention relates to the technical field of automated equipment for brewing liquor, and specifically discloses a high-efficiency continuous grain steamer and a grain steaming method thereof, wherein the high-efficiency continuous grain steamer comprises a frame, a pressure tank horizontally arranged on the frame, a chain plate conveyor and a pressure heating mechanism; the pressure tank is a sealed structure, and a feed port and a feed cover for opening and closing the feed port are arranged on the top of one side of the pressure tank; the invention adopts a sealed pressure tank to replace a traditional steamer to steam grains, and heats the grains in the pressure tank by a pressure heating mechanism at the same time; on the one hand, the pressure-high-temperature heating method can quickly steam the grains, shorten the steaming time, and improve the steaming efficiency; on the other hand, the sealed pressure tank will not leak water vapor and temperature, will not affect the working environment, and effectively protects the health of the staff; in addition, the pressure tank of the invention can complete continuous feeding, continuous unloading and continuous steaming without stopping the machine and releasing pressure.

Description

Technical Field

[0001] The invention relates to the technical field of automated equipment for brewing liquor, in particular to a high-efficiency continuous grain steaming machine and a grain steaming method thereof. Background Art

[0002] In the traditional production process of Luzhou-flavor liquor, grains must go through processes such as grain moistening, grain steaming, and gelatinization. Before steaming, the raw materials are moistened with water, which is also called material moistening. In this operation, the starch granules absorb water and expand slightly, creating conditions for steaming and gelatinization. Grains containing appropriate moisture are conducive to gelatinization and are easy to steam, so as to achieve the purpose of starch expansion and splitting, with a high wine yield and improved wine quality. The purpose of raw material steaming is mainly to make the starch granules further absorb water, expand, rupture, and gelatinize, so as to facilitate the action of amylase. At the same time, at high temperature, the raw and auxiliary materials are also sterilized to eliminate some volatile undesirable components. During the steaming process, the properties of starch will change. Due to the effect of osmotic pressure, water penetrates into the starch granules, increasing the volume and mass of the starch granules. This phenomenon is starch expansion.

[0003] At present, in the grain steaming step, the grain is steamed in a steamer. The steamer includes a pot body and a lid. A filter plate is arranged in the pot body, and steam holes are arranged on the filter plate. The filter plate is used to place grain. Water is added to the pot body below the filter plate. The water in the pot body is heated to turn the water into water vapor, and the water vapor steams the grain through the steam holes. The heating method can be a heating tube arranged in the steamer, or it can be heated by an open flame outside the pot body. The principle is the same as using a steamer to steam rice. However, the traditional steamer is not airtight, and it uses a normal pressure method. Moreover, the step of steaming grain by turning water into water vapor cannot be completely closed, so the efficiency of steaming grain is slow. The time for steaming grain in a traditional steamer is 90 to 120 minutes, and energy waste is serious; the large amount of water vapor generated will fill the workshop, causing low visibility and high ambient temperature, affecting the daily work and health of the staff. Summary of the invention

[0004] In view of the technical problems of low efficiency, large energy waste and impact on working environment of traditional steaming pots for grain cooking, the present invention provides a high-efficiency continuous grain steamer and a grain steaming method thereof, and the chain conveyor of the prior art is used for reference in the present invention.

[0005] The technical solution adopted by the present invention is: the high-efficiency continuous grain steaming machine comprises:

[0006] frame;

[0007] Pressure tanks, arranged horizontally on a rack, are used to steam grain;

[0008] Chain conveyor, arranged horizontally in the pressure tank, used to support and transport grain;

[0009] A pressurized heating mechanism is arranged in the pressure tank and is used to heat the grain on the chain conveyor;

[0010] The pressure tank is a sealed structure, with a feed port and a feed cover for opening and closing the feed port arranged at the top of one side of the pressure tank, and a discharge port and a discharge cover for opening and closing the discharge port arranged at the bottom of the other side.

[0011] The present invention adopts a sealed pressure tank to replace the traditional steamer to cook the grain, and heats the grain in the pressure tank by a pressure heating mechanism; on the one hand, the high-temperature and pressure heating method can quickly cook the grain, and the cooking time of the pressure tank of the present invention is 10 minutes to 25 minutes. Compared with the traditional normal pressure cooking, the cooking time is shortened by 4 to 8 times, which greatly improves the cooking efficiency; on the other hand, the sealed pressure tank will not leak water vapor and temperature, will not affect the working environment, and effectively protects the health of the staff.

[0012] Furthermore, the heating mechanism includes a steam pipe arranged in the pressure tank, the steam pipe is filled with high-temperature steam under pressure, a plurality of steam holes are arranged on the steam pipe, the outer wall of the pressure tank is provided with a steam pipe joint connected to the steam pipe, and the steam pipe joint is connected to the gas source through a pipeline. The gas source of the present invention adopts high-temperature steam generated by a boiler, and a booster pump is arranged on the pipeline, which can transport the high-temperature steam under pressure to the pressure tank through the pipeline to cook the grain therein, the temperature of the steam is 140℃~160℃, and the pressure of the steam is 0.2Mpa. The high-temperature and pressure heating method can quickly cook the grain, greatly shorten the cooking time, improve the cooking efficiency, and thus save production costs.

[0013] Furthermore, the chain conveyor includes a chain plate and a sprocket, the chain plate above the sprocket is the conveying section, the chain plate below the sprocket is the return section, a box is arranged between the conveying section and the return section, the top of the box is open, the steam pipe extends horizontally into the box, the steam hole is arranged in the part where the steam pipe extends into the box, and the chain plate is provided with a number of vents with a diameter smaller than the grain. The steam pipe is arranged below the conveying section of the chain plate, close to the grain, thereby improving the heating efficiency; at the same time, a box is arranged outside the steam pipe, so that most of the steam entering the box can only flow through the opening at the top of the box, and the top of the box is the chain plate where the grain is piled, and the chain plate is provided with steam holes, and the steam directly heats the grain through the steam holes, and the grain can be heated in a direction, thereby improving the heating efficiency.

[0014] Furthermore, a water supply pipe is provided in the pressure tank above the chain plate, and a plurality of water supply holes are provided on the water supply pipe. A water supply pipe joint connected to the water supply pipe is provided on the outer wall of the pressure tank, and the water supply pipe joint is connected to a water source through a pipeline. During the cooking process, grains will absorb water and expand, causing water loss. Therefore, water should be added to the grains in time during the cooking process to meet their expansion and create conditions for cooking gelatinization. The water source can be tap water at room temperature.

[0015] Furthermore, the diameter of the water supply hole is 2mm to 3mm. The water supply hole cannot be too large or too small, both of which will cause uneven water supply. Therefore, after a lot of practice, the inventor of this application preferably sets the diameter to 2mm to 3mm, so that the water sprayed from the water supply hole is in a small column and sprinkled on the grain.

[0016] Furthermore, a feed buffer hopper is provided at the top of the feed port, a first knife gate valve is provided at the top of the feed buffer hopper, and a second knife gate valve is provided between the feed buffer hopper and the feed port; a discharge buffer hopper is provided at the bottom of the discharge port, a third knife gate valve is provided at the bottom of the discharge buffer hopper, and a fourth knife gate valve is provided between the discharge buffer hopper and the discharge port. The design of the feed buffer hopper and the discharge buffer hopper is one of the main innovations of the present invention, and the design is very clever. It is precisely because of the above design that the present invention can achieve continuous and uninterrupted grain steaming without depressurizing the pressure tank. The specific principle is: the second knife gate valve and the fourth knife gate valve serve to seal the feed port and the discharge port. The feed buffer bucket and the discharge buffer bucket are the same in size and volume. The grain in the feed buffer bucket can cover 3 / 4 of the chain plate. When the grain near one end of the discharge port is steamed, open the first knife gate valve, and transport the grain to be steamed to the feed buffer bucket through external equipment. After the transportation, close the first knife gate valve, then open the second knife gate valve and the fourth knife gate valve and start the chain conveyor. At this time, the first knife gate valve and the third knife gate valve serve to seal the pressure tank. The chain conveyor runs 1 / 4 of the stroke. During the operation of the chain conveyor, the steamed grain on the chain conveyor falls into the discharge buffer bucket, and the new grain in the feed buffer bucket falls onto the chain conveyor for replenishment. After the chain conveyor runs 1 / 4 of the stroke, it stops, and the second and fourth knife gate valves are closed. Finally, the third knife gate valve is opened to allow the grain to be output through the discharge buffer bucket. After the output is completed, the third knife gate valve is closed to complete a cycle of feeding and discharging. When the grain stays in the pressure tank for 10min to 25min, it means that the grain has been steamed. There are four different time periods of grain on the chain plate. The time is used to determine whether the grain is steamed. When the 1 / 4 of the grain near the discharge port on the chain plate is cooked, repeat the above steps. Continuous feeding and unloading can be completed without depressurizing the pressure tank, and continuous steaming can be completed.

[0017] Furthermore, a feed hopper is provided in the pressure tank below the feed port, and a material dividing mechanism is provided on the feed hopper. The material dividing mechanism is to allow the grain entering the pressure tank to be evenly laid on the chain plate. If the material dividing mechanism is not provided, the grain entering the pressure tank through the feed port will be in a pile shape when falling onto the chain plate, that is, there will be more grain in the middle of the chain plate, and less grain on the end side of the chain plate. The uneven thickness will affect the passage of steam, thereby causing part of the grain to not be steamed, affecting the subsequent wine output. For this reason, the present invention provides a material dividing mechanism in the feed hopper to allow the grain to fall evenly onto the chain plate, so that the grain is evenly heated, which is beneficial to steaming and gelatinization, and improves the subsequent wine output rate of the grain.

[0018] Furthermore, the material distribution mechanism includes a first material distribution plate arranged in the same direction as the chain plate conveyor in the feed hopper, the first material distribution plate is arranged obliquely in the feed hopper, and the first material distribution plate gradually tilts downward in the direction close to the inner wall of the feed hopper; a sloped second material distribution plate is arranged in the middle of the feed hopper. A part of the grain entering the feed hopper falls from between the adjacent first material distribution plates, falls on the second material distribution plate, and slides on the second material distribution plate to the two sides of the chain plate near the middle along the slope of the second material distribution plate, and the other part falls on the first material distribution plate, and slides on the first material distribution plate to the two sides of the chain plate along the slope of the first material distribution plate. In this way, the grain can be evenly distributed on the chain plate in small piles, so that the grain is evenly heated, which is conducive to steaming and gelatinization, and improves the wine yield of the subsequent grain.

[0019] Furthermore, a flattening mechanism is provided on the feed hopper for flattening the piled grains on the chain conveyor. The grains falling onto the chain through the material distribution mechanism are in small piles, and a small part of the grains may be uneven in thickness. Therefore, the present invention provides a flattening mechanism on the feed hopper to flatten the top of the grains, so that the grains are evenly laid on the chain, and the grains are evenly heated in the subsequent steaming process, which is beneficial to steaming and gelatinization, and improves the wine yield of the grains in the subsequent process.

[0020] Furthermore, the flattening mechanism includes a flattening plate arranged on one side of the feed hopper close to the center of the pressure tank. When the grains on the chain plate are piled up and move along with the chain plate, after the grains on the chain plate contact the flattening plate, the grains that are higher than the flattening plate are rolled down to the chain plate by the flattening plate, so that the grains on the chain plate are of uniform thickness.

[0021] Furthermore, the rolling plate is vertically provided with long holes, and the rolling plate is connected to the feed hopper by bolts. Under different brewing processes and different cooking parameters, the required grain thickness is different. Therefore, the present invention sets the rolling plate to be bolted so that the rolling plate can be adjusted in the vertical direction. After the position of the rolling plate is adjusted, the rolling plate can be fixed by bolts. In this way, the height of the rolling plate in the vertical direction can be adjusted to achieve the function of adjusting the grain thickness.

[0022] Furthermore, the two sides of the chain conveyor are provided with enclosures, and the tops of the enclosures are inclined inwards. The enclosures limit and protect the grain on the chain to prevent the grain from spilling out of the chain; the top of the outer plate is inclined inwards to effectively prevent the grain from overflowing the enclosure. Because the grain absorbs water and expands during the cooking process, the inward-inclined enclosure can effectively suppress the expanded grain and prevent the grain from overflowing the enclosure after the expansion of cooking.

[0023] Furthermore, a trapezoidal notch is provided on the vertical plate near the discharge port of the feed hopper, and the rolling plate is bolted to the vertical plate. The vertical plate is set to a trapezoidal structure, and the grain passing through the vertical plate is also trapezoidal, in order to reduce the thickness of the grain edge, thereby reducing the contact between the grain and the enclosure plate and avoiding sticking.

[0024] Furthermore, a detection mechanism for detecting whether there is grain on the chain conveyor is provided in the pressure tank. The detection mechanism is used to detect whether there is grain on the chain conveyor. When the detection mechanism detects that there is grain on the chain, the corresponding mechanism can be controlled to work through a program to achieve fully automated operation.

[0025] Furthermore, the detection mechanism includes a detection plate arranged beside the feed hopper, the detection plate is hinged to the enclosure, and a proximity switch is arranged beside the detection plate. The specific principle is: since the detection plate is hinged to the enclosure, when there is no grain on the chain plate, the detection plate is in a vertical state under the action of its own gravity, and at this time the proximity switch contacts the detection plate; when there is grain on the chain plate, the grain hits the detection plate, causing the detection plate to tilt, and at this time the detection plate is disengaged from the proximity switch, and the proximity switch cannot detect the signal of the detection plate, proving that there is grain on the chain plate, then the system controls the corresponding subsequent mechanism to work through the program, realizing fully automated operation.

[0026] Furthermore, a support rail fixedly connected to the pressure tank is provided below the conveying section, a connecting block is provided on the back of the chain plate, a roller is provided at the bottom of the connecting block, and the roller is rollingly connected to the support rail. Since the chain plate itself has a certain weight, and the grain on the chain plate has a certain dead weight, the chain plate will be subject to greater pressure. If rollers and support rails are not provided, the middle part of the chain plate will sag, and after long-term use, the chain plate will be deformed and damaged, and eventually scrapped. For this reason, the present invention provides support rails and rollers to support the chain plate, which protects the chain plate and increases the service life of the chain plate. During the operation of the chain plate, the roller is rollingly connected to the support rail, and the support rail and roller cooperate to support the chain plate.

[0027] Furthermore, both ends of the pressure tank are provided with inspection ports and inspection doors for opening and closing the inspection ports. The inspection ports facilitate maintenance personnel to enter the interior of the pressure tank to maintain and repair relevant components.

[0028] Furthermore, the outer wall of the pressure tank is provided with a heat-insulating material, which plays a role in heat-insulating the pressure tank, reduces the heat transferred from the pressure tank to the outside, and ensures the cooking temperature of the grain in the pressure tank.

[0029] Furthermore, the pressure tank is provided with a transparent observation window, through which maintenance personnel and patrol personnel can observe the internal conditions of the pressure tank in real time.

[0030] The grain steaming method is used in the above-mentioned high-efficiency continuous grain steaming machine, comprising the following steps:

[0031] S1 opens the first knife gate valve, adds the grain to be steamed into the feed buffer, and closes the first knife gate valve after the grain is added;

[0032] S2 opens the second knife gate valve, allowing the grain in the feed buffer hopper to fall onto the chain conveyor through the feed hopper, and the chain conveyor conveys the grain on it until the grain in the feed hopper is transported, and the chain conveyor stops running;

[0033] S3 opens the fourth knife gate valve while opening the second knife gate valve in step S2, and the steamed grain on the chain conveyor falls into the discharge buffer bucket through the discharge port, and the fourth knife gate valve is closed after the chain conveyor stops running;

[0034] S4 opens the third knife gate valve, and the grain in the discharge buffer hopper falls into the transfer hopper, and then closes the third knife gate valve;

[0035] S5 is a cycle of steps S1 to S4, in which the grain is continuously steamed without releasing the pressure.

[0036] Through the above steps, the high-efficiency continuous grain steaming machine of the present invention can continuously load and discharge materials without depressurizing the pressure tank, thereby completing continuous steaming.

[0037] The beneficial effects of the present invention are:

[0038] 1. The present invention adopts a sealed pressure tank to replace the traditional steamer to cook the grain, and heats the grain in the pressure tank by a pressure heating mechanism; on the one hand, the high-temperature and pressure heating method can quickly cook the grain, shorten the cooking time, and improve the cooking efficiency; on the other hand, the sealed pressure tank will not leak water vapor and temperature, will not affect the working environment, and effectively protect the health of the staff.

[0039] 2. The pressure tank of the present invention can complete continuous loading, continuous unloading and continuous cooking without stopping the machine and releasing the pressure.

[0040] 3. The water supply pipe of the present invention can timely supply water to the grain during the grain cooking process to satisfy its expansion and create conditions for cooking and gelatinization.

[0041] 4. The present invention arranges a material distribution mechanism in the feed hopper to make the grains fall evenly onto the chain plate, so that the grains are evenly heated, which is beneficial to steaming and gelatinization, and improves the wine yield of the subsequent grains.

[0042] 5. The present invention arranges a flattening mechanism on the feed hopper to flatten the top of the grain, so that the grain is evenly laid on the chain plate, and the grain is evenly heated in the subsequent steaming process, which is beneficial to steaming and gelatinization, and improves the subsequent wine yield of the grain.

[0043] 6. The present invention provides support rails and rollers to support the chain plates, thereby protecting the chain plates and increasing the service life of the chain plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is the front view of the present invention.

[0045] Figure 2 It is a perspective view of the present invention.

[0046] Figure 3 It is a half-section view of the present invention.

[0047] Figure 4 yes Figure 3 A partial enlarged view of middle A.

[0048] Figure 5 It is a structural diagram of a chain conveyor.

[0049] Figure 6 It is a three-dimensional diagram of the feed hopper.

[0050] Figure 7 It is the front view of the feed hopper.

[0051] Figure 8 yes Figure 7 Right view of .

[0052] The markings in the figure are:

[0053] 1. Frame; 101. Steam pipe; 102. Steam pipe joint;

[0054] 2. Pressure tank; 201. Water supply pipe; 202. Water supply pipe joint;

[0055] 3. Chain conveyor; 31. Chain; 32. Sprocket; 33. Box; 310. Conveying section; 311. Return section;

[0056] 4. Feed buffer hopper; 401. First knife gate valve; 402. Second knife gate valve;

[0057] 5. Discharge buffer hopper; 501. Third knife gate valve; 502. Fourth knife gate valve;

[0058] 6. Feed hopper; 601. Vertical plate; 602. First material dividing plate; 603. Second material dividing plate; 604. Notch;

[0059] 7. Rolling plate; 8. Enclosure; 9. Detection plate; 10. Proximity switch; 11. Support rail; 12. Connecting block; 13. Roller; 14. Inspection door; 15. Observation window. DETAILED DESCRIPTION

[0060] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as “front”, “up”, “down”, “left”, “right”, “vertical” and “horizontal” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The present invention is further described below in conjunction with the accompanying drawings.

[0063] Embodiment 1

[0064] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5The high-efficiency continuous grain steaming machine of the present invention comprises a frame 1, a pressure tank 2 horizontally arranged on the frame 1, a chain conveyor 3 horizontally arranged in the pressure tank 2, and a pressurized heating mechanism arranged in the pressure tank 2; the pressure tank 2 is used for steaming grain, the chain conveyor 3 is used for supporting and transporting grain, and the pressurized heating mechanism is used for heating the grain on the chain conveyor 3; the pressure tank 2 is a sealed structure, and a feed port and a feed cover for opening and closing the feed port are provided at the top of one side of the pressure tank 2, and a discharge port and a discharge cover for opening and closing the discharge port are provided at the bottom of the other side. The present invention adopts a sealed pressure tank to replace the traditional steamer to cook the grain, and heats the grain in the pressure tank by a pressure heating mechanism; on the one hand, the high-temperature and pressure heating method can quickly cook the grain, and the cooking time of the pressure tank of the present invention is 10 minutes to 25 minutes. Compared with the traditional normal pressure cooking, the cooking time is shortened by 4 to 8 times, which greatly improves the cooking efficiency; on the other hand, the sealed pressure tank will not leak water vapor and temperature, will not affect the working environment, and effectively protects the health of the staff.

[0065] Reference Figure 2 , Figure 3 and Figure 4 The heating mechanism of this embodiment includes a steam pipe 101 arranged in the pressure tank 2, and high-temperature steam with pressure is passed through the steam pipe 101. A plurality of steam holes (not shown in the figure) are arranged on the steam pipe 101. The outer wall of the pressure tank 2 is provided with a steam pipe joint 102 connected to the steam pipe 101, and the steam pipe joint 102 is connected to the gas source (not shown in the figure) through a pipeline (not shown in the figure). The gas source of the present invention adopts high-temperature steam generated by a boiler, and a booster pump is arranged on the pipeline, which can transport the high-temperature steam with pressure to the pressure tank through the pipeline to cook the grain therein. The temperature of the steam is 140℃~160℃, and the pressure of the steam is 0.2Mpa. The high-temperature heating method with pressure can quickly cook the grain, greatly shorten the cooking time, improve the cooking efficiency, and thus save production costs.

[0066] Reference Figure 4The chain conveyor 3 of this embodiment includes a chain plate 31 and a sprocket 32. The chain plate 31 above the sprocket 32 ​​is a conveying section 310, and the chain plate 31 below the sprocket 32 ​​is a return section 311. A box 33 is arranged between the conveying section 310 and the return section 311. The top of the box 33 is open. The steam pipe 101 extends horizontally into the box 33. The steam hole is arranged in the part where the steam pipe 101 extends into the box 33. The chain plate 31 is provided with a plurality of vents (not shown in the figure) with a diameter smaller than that of the grain. The steam pipe is arranged below the conveying section of the chain plate, which is close to the grain, thereby improving the heating efficiency. At the same time, a box is arranged outside the steam pipe, so that most of the steam entering the box can only flow through the open top of the box. The top of the box is the chain plate where the grain is piled. The chain plate is provided with steam holes. The steam directly heats the grain through the steam holes, and the grain can be heated in a direction, thereby improving the heating efficiency.

[0067] Reference Figure 2 and Figure 3 In this embodiment, a water supply pipe 201 is provided in the pressure tank 2 above the chain plate 31, and a plurality of water supply holes are provided on the water supply pipe 201. A water supply pipe joint 202 connected to the water supply pipe 201 is provided on the outer wall of the pressure tank 2, and the water supply pipe joint 202 is connected to a water source through a pipeline. During the cooking process, grains will absorb water and expand, causing water loss. Therefore, water should be added to the grains in time during the cooking process to meet their expansion and create conditions for cooking gelatinization. The water source can be tap water at room temperature.

[0068] The diameter of the water replenishment hole in this embodiment is 2 mm. The water replenishment hole cannot be too large or too small, both of which will cause uneven water replenishment. Therefore, after a lot of practice, the inventor of this application preferably sets it to 2 mm, so that the water sprayed from the water replenishment hole is in a small column and sprinkled on the grain.

[0069] Reference Figure 3 In this embodiment, a feed hopper 6 is provided in the pressure tank 2 below the feed port, and a material dividing mechanism is provided on the feed hopper 6. The material dividing mechanism is to allow the grain entering the pressure tank to be evenly laid on the chain plate. If the material dividing mechanism is not provided, the grain entering the pressure tank through the feed port will be in a pile shape when falling onto the chain plate, that is, there will be more grain in the middle of the chain plate, and less grain on the end side of the chain plate. The uneven thickness will affect the passage of steam, and then cause part of the grain to not be steamed, affecting the subsequent wine output. For this reason, the present invention sets a material dividing mechanism in the feed hopper to make the grain fall evenly onto the chain plate, so that the grain is evenly heated, which is conducive to steaming and gelatinization, and improves the subsequent wine output rate of the grain.

[0070] Reference Figure 6 , Figure 7 and Figure 8The material distribution mechanism used in this embodiment includes a first material distribution plate 602 arranged in the same direction as the chain plate conveyor 3 in the feed hopper 6. The first material distribution plate 602 is arranged obliquely in the feed hopper 6, and the first material distribution plate 602 gradually tilts downward in the direction close to the inner wall of the feed hopper 6; a sloped second material distribution plate 603 is provided in the middle of the feed hopper 6. A part of the grain entering the feed hopper falls from between the adjacent first material distribution plates, falls on the second material distribution plate, and slides on the second material distribution plate to the two sides of the chain plate near the middle along the slope of the second material distribution plate, and the other part falls on the first material distribution plate, and slides on the first material distribution plate to the two sides of the chain plate along the slope of the first material distribution plate. In this way, the grain can be evenly distributed on the chain plate in small piles, so that the grain is evenly heated, which is conducive to steaming and gelatinization, and improves the wine yield of the subsequent grain.

[0071] In this embodiment, a flattening mechanism for flattening the piled grains on the chain conveyor 3 is provided on the feed hopper 6. The grains falling onto the chain through the material distribution mechanism are in small piles, and a small part of the grains may be uneven in thickness. For this reason, the present invention provides a flattening mechanism on the feed hopper to flatten the top of the grains, so that the grains are evenly laid on the chain, and the grains are evenly heated in the subsequent steaming process, which is conducive to steaming and gelatinization, and improves the subsequent wine yield of the grains.

[0072] Reference Figure 8 The flattening mechanism of this embodiment includes a flattening plate 7 arranged on the side of the feed hopper 6 close to the center of the pressure tank 2. When the grains on the chain plate are piled up and move along with the chain plate, after the grains on the chain plate contact the flattening plate, the grains that are higher than the flattening plate are rolled down to the chain plate by the flattening plate, so that the grains on the chain plate are of uniform thickness.

[0073] Reference Figure 8 In this embodiment, a long hole is vertically arranged on the rolling plate 7, and the rolling plate 7 is connected to the feed hopper 6 by bolts. Under different brewing processes and different cooking parameters, the required grain thickness is different. For this reason, the present invention sets the rolling plate to be bolted so that the rolling plate can be adjusted in the vertical direction. After the position of the rolling plate is adjusted, the rolling plate can be fixed by bolts. In this way, the height of the rolling plate in the vertical direction can be adjusted to achieve the function of adjusting the grain thickness.

[0074] Reference Figure 8 In this embodiment, a trapezoidal notch 604 is provided on the vertical plate 601 near the discharge port of the feed hopper 6, and the flat plate 7 is bolted to the vertical plate 601. The vertical plate is set to a trapezoidal structure, and the grain passing through the vertical plate is also trapezoidal, in order to reduce the thickness of the grain edge, thereby reducing the contact amount between the grain and the enclosure plate and avoiding sticking of the grain.

[0075] Reference Figure 5In this embodiment, enclosures 8 are provided on both sides of the chain conveyor 3, and the tops of the enclosures 8 are inclined inwards. The enclosures limit and protect the grain on the chain, preventing the grain from spilling out of the chain; the top of the outer peripheral plate is inclined inwards, which can effectively limit the grain from overflowing the enclosure. Because the grain absorbs water and expands during the cooking process, the inward-inclined enclosure can effectively suppress the expanded grain, preventing the grain from overflowing the enclosure after the expansion of the cooking.

[0076] In this embodiment, a detection mechanism for detecting whether there is grain on the chain conveyor 3 is provided in the pressure tank 2. The detection mechanism is used to detect whether there is grain on the chain conveyor. When the detection mechanism detects that there is grain on the chain, the corresponding mechanism can be controlled by a program to achieve fully automated operation.

[0077] Reference Figure 4 The detection mechanism of this embodiment includes a detection plate 9 arranged beside the feed hopper 6, the detection plate 9 is hinged with the enclosure 8, and a proximity switch 10 is arranged beside the detection plate 9. The specific principle is: since the detection plate is hinged with the enclosure, when there is no grain on the chain plate, the detection plate is in a vertical state under the action of its own gravity, and the proximity switch is in contact with the detection plate at this time; when there is grain on the chain plate, the grain hits the detection plate, causing the detection plate to tilt, and the detection plate is separated from the proximity switch at this time, and the proximity switch cannot detect the signal of the detection plate, proving that there is grain on the chain plate, then the system controls the corresponding mechanism of the subsequent sequence to work through the program, and realizes fully automatic operation.

[0078] Reference Figure 1 In this embodiment, an inspection port and an inspection door 14 for opening and closing the inspection port are provided at both ends of the pressure tank 2. The inspection port facilitates maintenance personnel to enter the interior of the pressure tank to maintain and repair related components.

[0079] In this embodiment, a heat-insulating material (not shown in the figure) is provided on the outer wall of the pressure tank 2 to keep the pressure tank warm, reduce the heat transferred from the pressure tank to the outside, and ensure the cooking temperature of the grain in the pressure tank.

[0080] Reference Figure 1 In this embodiment, a transparent observation window 15 is provided on the pressure tank 2, and maintenance personnel and patrol personnel can observe the internal conditions of the pressure tank in real time through the observation window.

[0081] Reference Figure 4In this embodiment, a support rail 11 fixedly connected to the pressure tank 2 is provided below the conveying section 310, a connecting block 12 is provided on the back of the chain plate 31, and a roller 13 is provided at the bottom of the connecting block 12, and the roller 13 is rollingly connected to the support rail 11. Since the chain plate itself has a certain weight, and the grain on the chain plate has a certain dead weight, the chain plate will be subjected to greater pressure. If rollers and support rails are not provided, the middle part of the chain plate will sag, and after long-term use, the chain plate will be deformed and damaged, and eventually scrapped. For this reason, the present invention provides support rails and rollers to support the chain plate, which protects the chain plate and increases the service life of the chain plate. During the operation of the chain plate, the roller is rollingly connected to the support rail, and the support rail and roller cooperate to support the chain plate.

[0082] Embodiment 2

[0083] Reference Figure 1 , Figure 2 and Figure 3On the basis of the first embodiment, this embodiment is provided with a feed buffer hopper 4 at the top of the feed port, a first knife gate valve 401 is provided at the top of the feed buffer hopper 4, and a second knife gate valve 402 is provided between the feed buffer hopper 4 and the feed port; a discharge buffer hopper 5 is provided at the bottom of the discharge port, a third knife gate valve 501 is provided at the bottom of the discharge buffer hopper 5, and a fourth knife gate valve 502 is provided between the discharge buffer hopper 5 and the discharge port. The design of the feed buffer hopper and the discharge buffer hopper is one of the main innovations of the present invention, and its design is very clever. It is precisely because of the above design that the present invention can achieve continuous and uninterrupted grain steaming without depressurizing the pressure tank. The specific principle is: the second knife gate valve and the fourth knife gate valve serve to seal the feed port and the discharge port. The feed buffer bucket and the discharge buffer bucket are the same in size and volume. The grain in the feed buffer bucket can cover 3 / 4 of the chain plate. When the grain near one end of the discharge port is steamed, open the first knife gate valve, and transport the grain to be steamed to the feed buffer bucket through external equipment. After the transportation, close the first knife gate valve, then open the second knife gate valve and the fourth knife gate valve and start the chain conveyor. At this time, the first knife gate valve and the third knife gate valve serve to seal the pressure tank. The chain conveyor runs 1 / 4 of the stroke. During the operation of the chain conveyor, the steamed grain on the chain conveyor falls into the discharge buffer bucket, and the new grain in the feed buffer bucket falls onto the chain conveyor for replenishment. After the chain conveyor runs 1 / 4 of the stroke, it stops, and the second and fourth knife gate valves are closed. Finally, the third knife gate valve is opened to allow the grain to be output through the discharge buffer bucket. After the output is completed, the third knife gate valve is closed to complete a cycle of feeding and discharging. When the grain stays in the pressure tank for 10min to 25min, it means that the grain has been steamed. There are four different time periods of grain on the chain plate. The time is used to determine whether the grain is steamed. When the 1 / 4 of the grain near the discharge port on the chain plate is cooked, repeat the above steps. Continuous feeding and unloading can be completed without depressurizing the pressure tank, and continuous steaming can be completed.

[0084] Embodiment 3

[0085] The grain steaming method, used in the high-efficiency continuous grain steaming machine of the second embodiment, comprises the following steps:

[0086] S1 opens the first knife gate valve 401, adds the grain to be steamed into the feed buffer 4, and closes the first knife gate valve 401 after the grain is added;

[0087] S2 opens the second knife gate valve 402, allowing the grain in the feed buffer hopper 4 to fall onto the chain conveyor 3 through the feed hopper 6, and the chain conveyor 3 conveys the grain on it until the grain in the feed hopper 6 is transported, and the chain conveyor 3 stops running;

[0088] S3 opens the fourth knife gate valve 502 while opening the second knife gate valve 402 in step S2, and the steamed grain on the chain conveyor 3 falls into the discharge buffer hopper 5 through the discharge port, and the fourth knife gate valve 502 is closed after the chain conveyor 3 stops running;

[0089] S4 opens the third knife gate valve 501, and the grain in the discharge buffer hopper 5 falls into the transfer hopper, and then closes the third knife gate valve 501;

[0090] S5 is a cycle of steps S1 to S4, in which the grain is continuously steamed without releasing the pressure.

[0091] Through the above steps, the high-efficiency continuous grain steaming machine of the present invention can continuously load and discharge materials without depressurizing the pressure tank, thereby completing continuous steaming.

[0092] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. High-efficiency continuous grain steaming machine, It is characterized in that include: Rack (1); A pressure tank (2) is horizontally arranged on the frame (1) and is used for steaming grain; A chain conveyor (3) is horizontally arranged in the pressure tank (2) and is used to support and transport grain; A pressurized heating mechanism is arranged in the pressure tank (2) and is used to heat the grain on the chain conveyor (3); The pressure tank (2) is a sealed structure. A feed port and a feed cover for opening and closing the feed port are arranged at the top of one side of the pressure tank (2), and a discharge port and a discharge cover for opening and closing the discharge port are arranged at the bottom of the other side. The heating mechanism comprises a steam pipe (101) arranged in the pressure tank (2), high-temperature steam with pressure flows in the steam pipe (101), a plurality of steam holes are arranged on the steam pipe (101), a steam pipe joint (102) connected to the steam pipe (101) is arranged on the outer wall of the pressure tank (2), and the steam pipe joint (102) is connected to the gas source through a pipeline; the chain conveyor (3) comprises a chain plate (31) and a sprocket (32), and the upper part of the sprocket (32) The chain plate (31) is a conveying section (310), the chain plate (31) below the sprocket (32) is a return section (311), a box (33) is provided between the conveying section (310) and the return section (311), the top of the box (33) is open, the steam pipe (101) extends horizontally into the box (33), the steam holes are arranged at the portion where the steam pipe (101) extends into the box (33), and a plurality of ventilation holes having a diameter smaller than that of the grain are provided on the chain plate (31).

2. The high-efficiency continuous grain steaming machine according to claim 1, It is characterized in that A water supply pipe (201) is arranged in the pressure tank (2) above the chain plate (31), and a plurality of water supply holes are arranged on the water supply pipe (201). A water supply pipe (202) joint communicating with the water supply pipe (201) is arranged on the outer wall of the pressure tank (2), and the water supply pipe joint (202) is connected to a water source through a pipeline.

3. The high-efficiency continuous grain steaming machine as claimed in claim 2, It is characterized in that The diameter of the water replenishment hole is 2mm to 3mm.

4. The high-efficiency continuous grain steaming machine according to claim 1, It is characterized in that A feed buffer hopper (4) is arranged at the top of the feed inlet, a first knife gate valve (401) is arranged at the top of the feed buffer hopper (4), and a second knife gate valve (402) is arranged between the feed buffer hopper (4) and the feed inlet; A discharge buffer hopper (5) is arranged at the bottom of the discharge port, a third knife gate valve (501) is arranged at the bottom of the discharge buffer hopper (5), and a fourth knife gate valve (502) is arranged between the discharge buffer hopper (5) and the discharge port.

5. The high-efficiency continuous grain steaming machine according to claim 1, It is characterized in that A feed hopper (6) is arranged in the pressure tank (2) below the feed port, and a material distribution mechanism is arranged on the feed hopper (6).

6. The high-efficiency continuous grain steaming machine as claimed in claim 5, It is characterized in that The material distribution mechanism comprises a first material distribution plate (602) arranged in the same direction as the chain plate conveyor (3) in the feed hopper (6); the first material distribution plate (602) is arranged obliquely in the feed hopper (6); the first material distribution plate (602) gradually tilts downward in a direction close to the inner wall of the feed hopper (6); A sloped second material distribution plate (603) is provided in the middle of the feed hopper (6).

7. The high-efficiency continuous grain steaming machine according to claim 5, It is characterized in that The feed hopper (6) is provided with a flattening mechanism for flattening the piled grain on the chain conveyor (3).

8. The high-efficiency continuous grain steaming machine as claimed in claim 7, It is characterized in that The flattening mechanism comprises a flattening plate (7) arranged on one side of the feed hopper (6) close to the center of the pressure tank (2).

9. The high-efficiency continuous grain steaming machine according to claim 8, It is characterized in that The rolling plate (7) is vertically provided with long holes, and the rolling plate (7) is connected to the feed hopper (6) via bolts.

10. The high-efficiency continuous grain steaming machine according to claim 9, It is characterized in that A trapezoidal notch (604) is provided on the vertical plate (601) on the side of the feed hopper (6) close to the discharge port, and the rolling plate (7) is bolted to the vertical plate (601).

11. The high-efficiency continuous grain steaming machine according to claim 5, It is characterized in that Enclosures (8) are provided on both sides of the chain conveyor (3), and the tops of the enclosures (8) are inclined inwards.

12. The high-efficiency continuous grain steaming machine according to claim 11, It is characterized in that The pressure tank (2) is provided with a detection mechanism for detecting whether there is grain on the chain conveyor (3).

13. The high-efficiency continuous grain steaming machine according to claim 12, It is characterized in that The detection mechanism comprises a detection plate (9) arranged beside the feed hopper (6), the detection plate (9) being hinged to the enclosure plate (8), and a proximity switch (10) being arranged beside the detection plate (9).

14. The high-efficiency continuous grain steaming machine according to claim 1, It is characterized in that A support rail (11) fixedly connected to the pressure tank (2) is arranged below the conveying section (310); a connecting block (12) is arranged on the back of the chain plate (31); a roller (13) is arranged at the bottom of the connecting block (12); and the roller (13) is rollingly connected to the support rail (11).

15. The high-efficiency continuous grain steaming machine according to claim 1, It is characterized in that Both ends of the pressure tank (2) are provided with inspection openings and inspection doors (14) for opening and closing the inspection openings.

16. The high-efficiency continuous grain steaming machine according to claim 1, It is characterized in that The outer wall of the pressure tank (2) is provided with heat-insulating material.

17. The high-efficiency continuous grain steaming machine according to any one of claims 1 to 16, It is characterized in that The pressure tank (2) is provided with a transparent observation window (15).

18. Steaming method It is characterized in that The high-efficiency continuous grain steaming machine according to claim 17 comprises the following steps: S1 opens the first knife gate valve (401), adds the grain to be steamed into the feed buffer hopper (4), and closes the first knife gate valve (401) after the grain has been added; S2 opens the second knife gate valve (402), allowing the grain in the feed buffer hopper (4) to fall onto the chain conveyor (3) through the feed hopper (6), and the chain conveyor (3) conveys the grain on it until the grain in the feed hopper (6) is transported and the chain conveyor (3) stops running; S3: opening the fourth knife gate valve (502) while opening the second knife gate valve (402) in step S2, so that the steamed grain on the chain conveyor (3) falls into the discharge buffer hopper (5) through the discharge port, and the fourth knife gate valve (502) is closed after the chain conveyor (3) stops running; S4 opens the third knife gate valve (501), and the grain in the discharge buffer hopper (5) falls into the transfer hopper, and then the third knife gate valve (501) is closed. S5 is a cycle of steps S1 to S4, in which the grain is continuously steamed without releasing the pressure.

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