Maltose saccharifying and filtering device

Abstract

The invention provides a malt saccharifying and filtering device. The malt saccharifying and filtering device comprises a feeding mechanism, a deslagging mechanism, a filtering mechanism and a wort collecting tank. The filtering mechanism comprises a driving part and a filtering sieve, the filtering sieve is used for filtering the wort mixture and extends to the discharging end from the feeding end, the driving part drives the filtering sieve to move between the feeding end and the discharging end, the wort mixture is conveyed to the discharging end from the feeding end, and meanwhile the wort mixture is filtered in the conveying process from the feeding end to the discharging end; and the wort filtered by the filter sieve falls into the wort collecting tank at the lower part, so that the collection of the wort is realized. Wherein the driving piece can continuously drive the filter sieve to move between the feeding end and the discharging end, and the residue discharging mechanism can continuously discharge residual waste residues after filtration, so that a wort mixture is continuously filtered, continuous production can be further realized, the stable product quality is ensured, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of malt sugar production equipment, and in particular to a malt sugar filtration device. BACKGROUND

[0002] In the traditional malt sugar filtration process, an intermittent production equipment is usually used. After the completion of each batch production, the equipment needs to be stopped for cleaning, reloading of raw materials and other operations. This not only consumes a lot of time and reduces production efficiency, but also increases the energy consumption of the equipment due to frequent start-stop operations, and the labor cost is also high. In addition, due to its own characteristics, the intermittent equipment is difficult to ensure the stability of the process parameters during the saccharification and filtration process, which easily leads to fluctuations in product quality. Therefore, each batch of products needs to be tested to ensure that the wort quality meets the standards. Therefore, it is of great practical significance to develop a malt sugar filtration device that can continuously produce, is energy-efficient and can ensure stable product quality. SUMMARY

[0003] The purpose of the present application is to solve the problem that the existing malt sugar filtration equipment cannot continuously produce, resulting in low production efficiency, high cost and high failure rate of the equipment due to frequent start-stop.

[0004] To solve the above technical problems, the present application provides a malt sugar filtration device, which comprises a rack, a feeding mechanism, a filtration mechanism, a residue discharge mechanism and a wort collection tank. The opposite ends of the rack in the length direction are the feeding end and the discharging end respectively. The feeding mechanism is arranged at the feeding end and is used for inputting the wort mixture to be filtered. The filtration mechanism is arranged on the rack. The filtration mechanism comprises a driving member and a filter screen. The filter screen is used for filtering the wort mixture and extends from the feeding end to the discharging end. The driving member drives the filter screen to move between the feeding end and the discharging end, so as to transport the wort mixture from the feeding end to the discharging end. The residue discharge mechanism is arranged at the discharging end and is used for receiving the remaining waste residues after filtration transported by the filter screen. The wort collection tank is arranged directly below the filter screen and is used for collecting the wort after the filter screen filters the wort mixture.

[0005] In some schemes of the present application, the driving member comprises a driving motor, a driving shaft and a driven shaft. The driving shaft and the driven shaft are arranged at the two ends of the rack in the length direction respectively. The driving motor is fixedly connected with the rack and is in transmission connection with the driving shaft. The filter screen is of a flexible structure. The filter screen is annular and is wound around the driving shaft and the driven shaft. When the driving motor drives the driving shaft to rotate, the filter screen is driven to move.

[0006] In some embodiments of the present application, the malt filtration device further comprises a water spraying mechanism, the water spraying mechanism comprises a first water supply pipe and a plurality of first spray heads, the plurality of first spray heads are arranged above the filter screen in the length direction of the rack, and the water outlet ends of the first spray heads are directed towards the top surface of the filter screen, the first water supply pipe is connected with the first spray heads, and an external water supply device is connected with the first water supply pipe, so that water in the water supply device can be sprayed onto the top surface of the filter screen through the first water supply pipe and the first spray heads to wash out the malt sugar in the wort mixture on the filter screen.

[0007] In some embodiments of the present application, the malt filtration device further comprises a furrowing mechanism, the furrowing mechanism comprises a power member and a plurality of furrowing blades, the furrowing blades are arranged above the filter screen, the axes of the furrowing blades extend in the width direction of the rack, the power member is fixedly connected with the rack and is in transmission connection with the furrowing blades, and the power member can drive the furrowing blades to rotate around their own axes to loosen the wort mixture; the furrowing blades are arranged in plurality, and the plurality of furrowing blades are arranged in the length direction of the rack at intervals, and all the furrowing blades are in transmission connection with the power member.

[0008] In some embodiments of the present application, the malt filtration device further comprises a height limiting plate, the height limiting plate is arranged between the feeding end and the discharging end and above the filter screen, and the distance between the bottom surface of the height limiting plate and the top surface of the filter screen forms a space for the wort mixture to pass through.

[0009] In some embodiments of the present application, the malt filtration device further comprises a cleaning mechanism, the cleaning mechanism comprises a second water supply pipe and a plurality of second spray heads, the plurality of second spray heads are arranged between the filter screen and the wort collecting tank in the length direction of the rack at intervals, and the water outlet ends of the second spray heads are directed towards the bottom surface of the filter screen, the second water supply pipe is connected with the second spray heads, and an external water supply device is connected with the second water supply pipe, so that water in the water supply device can be sprayed towards the bottom surface of the filter screen through the second water supply pipe and the second spray heads.

[0010] In some embodiments of the present application, the wort collecting tank comprises a first collecting tank and a second collecting tank, the first collecting tank is arranged below one end of the filter screen close to the feeding mechanism, and the second collecting tank is arranged below one end of the filter screen close to the residue discharging mechanism; the second collecting tank is connected with a liquid discharging pipe, and the liquid discharging pipe is connected with the feeding mechanism.

[0011] In some schemes of the present application, the feeding mechanism comprises a mashing kettle, a malt raw material conveying structure and a water supply structure, the mashing kettle is provided with a feeding port and a discharge pipe, the malt raw material conveying structure is connected with the feeding port of the mashing kettle, and the water supply structure is connected with the mashing kettle or the malt raw material conveying structure; the discharge pipe extends above the end of the filter screen away from the residue discharging mechanism.

[0012] In some schemes of the present application, a feeding pump is connected in series on the discharge pipe, the feeding pump is used for pumping the wort mixture in the mashing kettle to the filter screen; a flow meter is connected in series on the discharge pipe, the flow meter is located between the feeding pump and the filter screen, and the flow meter is electrically connected with the feeding pump.

[0013] In some schemes of the present application, the residue discharging mechanism comprises a waste mash tank and a waste mash conveying structure, the waste mash tank is arranged below the end of the filter screen away from the feeding mechanism, and the waste mash conveying structure is connected with the waste mash tank to convey the waste mash in the waste mash tank to the outside of the waste mash tank.

[0014] In some schemes of the present application, the malt mashing and filtering device further comprises a protective cover, the protective cover is fixed on the rack and located above the filter screen; the protective cover is provided with an air pressure balance port in communication with the outside.

[0015] According to the above technical scheme, the malt mashing and filtering device of the present application comprises a feeding mechanism, a residue discharging mechanism, a filtering mechanism and a wort collecting tank. The filtering mechanism comprises a driving member and a filter screen, the filter screen is used for filtering the wort mixture and extends from a feeding end to a discharge end, and the driving member drives the filter screen to move between the feeding end and the discharge end, so as to transport the wort mixture from the feeding end to the discharge end, and the wort mixture is filtered during the transportation from the feeding end to the discharge end, and the wort filtered by the filter screen falls into the wort collecting tank below, so as to realize the collection of the wort. The driving member can continuously drive the filter screen to move between the feeding end and the discharge end, the feeding mechanism can continuously input the wort mixture to be filtered, and the residue discharging mechanism can continuously discharge the waste mash after being filtered, so as to continuously filter the wort mixture, thereby realizing continuous production, ensuring stable product quality, improving production efficiency, avoiding the problem of high failure rate caused by frequent start and stop of the equipment, and reducing energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic diagram of a malt mashing and filtering device in an embodiment.

[0017] Figure 2 Fig. 2 is a front structural schematic diagram of a filtering mechanism in an embodiment.

[0018] Figure 3 is Figure 2 is a top view structural schematic diagram of the filtering mechanism.

[0019] Figure 4 is a structural schematic diagram of the furrow mechanism in an embodiment.

[0020] The reference signs are explained as follows: 1 - frame; 11 - feeding end; 12 - discharging end; 2 - filtering mechanism; 21 - filtering screen; 22 - driving member; 221 - driving motor; 222 - driving shaft; 223 - driven shaft; 224 - supporting roller; 3 - feeding mechanism; 31 - saccharifying kettle; 32 - malt raw material conveying structure; 33 - water supply structure; 311 - feeding port; 312 - discharging pipe; 34 - feeding pump; 35 - flow meter; 4 - slag discharging mechanism; 41 - waste sludge tank; 42 - waste sludge conveying structure; 5 - water spraying mechanism; 51 - first water supply pipe; 52 - first spray head; 6 - wort collecting tank; 61 - first collecting tank; 62 - second collecting tank; 63 - liquid discharging pipe; 64 - liquid discharging pipe; 7 - furrow mechanism; 71 - power member; 72 - plow blade; 721 - blade shaft; 722 - blade; 73 - synchronous belt; 8 - height limiting plate; 9 - cleaning mechanism; 91 - second water supply pipe; 92 - second spray head; 10 - protective cover; 101 - air pressure balance port. DETAILED DESCRIPTION

[0021] The typical embodiments embodying the features and advantages of the present application are described in detail in the following description. It should be understood that the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

[0022] In the description of the present application, it should be understood that the indication of direction or positional relationship (such as up, down, left, right, front and back, etc.) in the embodiments shown in the drawings is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation. When the positions of these elements are changed, the indications of these directions are also changed accordingly.

[0023] In addition, the terms "first", "second" are only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] The existing filtering device needs to be stopped for cleaning, reloading of raw materials and other operations, and can only work intermittently, resulting in low production efficiency, easy product quality fluctuation, and frequent start-stop operation increasing the energy consumption of the device. The application provides a malt saccharification filtering device.

[0025] Referring to Figure 1 , the malt saccharification filtering device comprises a rack 1, a feeding mechanism 3, a filtering mechanism 2, a residue discharging mechanism 4 and a wort collecting tank 6. The feeding mechanism 3, the filtering mechanism 2, the residue discharging mechanism 4 and the wort collecting tank 6 are connected with the rack 1, and the wort mixture to be filtered can be input into the filtering mechanism 2 through the feeding mechanism 3, then filtered through the filtering mechanism 2, the filtered wort enters the wort collecting tank 6, and the waste residue left after filtering is discharged through the residue discharging mechanism 4, and the filtering mechanism 2 can transport the waste residue left after filtering to the residue discharging mechanism 4 during the filtering of the wort mixture, thereby realizing continuous filtering of the wort mixture.

[0026] The rack 1 is used for supporting the filtering mechanism 2 and the wort collecting tank 6. The rack 1 comprises upright columns, cross beams and longitudinal beams. The upright columns are vertically arranged and four in number. The four upright columns are divided into two groups, and the two upright columns in each group are arranged at intervals along the length direction of the rack 1, and the two groups of upright columns are arranged at intervals along the width direction of the rack 1, so that the four upright columns form four supporting legs of the rack 1. The cross beams are two in number, and the length directions of the two cross beams are arranged along the length direction of the rack 1, and the two ends of the cross beam are respectively connected to the upper ends of the adjacent two upright columns, that is, the two ends of each cross beam in the length direction are respectively connected to the upper ends of the two upright columns in the same group. The longitudinal beams are two in number, and the length directions of the two longitudinal beams are arranged along the width direction of the rack 1, and the two ends of the longitudinal beam are connected between the adjacent two upright columns, that is, the longitudinal beam connects the upright columns on the two groups of upright columns, so that the upright columns, cross beams and longitudinal beams form a structure capable of stably supporting the filtering mechanism 2 and the wort collecting tank 6. It should be noted that the number of upright columns, cross beams and longitudinal beams can be adaptively increased according to needs to improve the stress strength of the rack 1. For example, four upright columns, cross beams and longitudinal beams are arranged to form a structure similar to a cuboid; for another example, longitudinal beams are arranged between the two cross beams, or the number of upright columns is increased. The two ends of the length direction of the rack 1 are respectively the feeding end 11 and the discharging end 12.

[0027] Referring to Figure 1 , Figure 2 and Figure 3The filtering mechanism 2 comprises a driving member 22 and a filtering screen 21. The filtering screen 21 extends from the feeding end 11 to the discharging end 12, and the driving member 22 drives the filtering screen 21 to move between the feeding end 11 and the discharging end 12, and to transport the wort mixture from the feeding end 11 to the discharging end 12. The filtering screen 21 is provided with filtering holes which are distributed on the entire surface of the filtering screen 21, so that when the wort mixture is placed on the filtering screen 21, the wort in the wort mixture can pass through the filtering holes, thereby realizing the filtration of the wort mixture.

[0028] In an embodiment, the driving member 22 comprises a driving motor 221, a driving shaft 222 and a driven shaft 223. The driving shaft 222 and the driven shaft 223 are arranged in the width direction of the rack 1 in the axial direction, and the driving shaft 222 and the driven shaft 223 are arranged at two ends of the rack 1 in the length direction, respectively. The driving motor 221 is fixedly connected with the rack 1 and is in transmission connection with the driving shaft 222. The filtering screen 21 is of a flexible structure, and the filtering screen 21 is annular and is wound around the driving shaft 222 and the driven shaft 223. When the driving motor 221 drives the driving shaft 222 to rotate, the filtering screen 21 is driven to move, so that the filtering screen 21 moves between the feeding end 11 and the discharging end 12. In Figure 1 In the embodiment shown in the figure, the driving shaft 222 is arranged at one end of the rack 1 which is arranged as the feeding end 11, and the driven shaft 223 is arranged at one end of the rack 1 which is arranged as the discharging end 12, and the two ends of the driving shaft 222 and the driven shaft 223 in the axial direction are rotatably connected with the two cross beams, respectively. It should be noted that the positions of the driving shaft 222 and the driven shaft 223 on the rack 1 can be exchanged.

[0029] In an embodiment, the driving member 22 further comprises a supporting roller 224, the supporting roller 224 is arranged between the driving shaft 222 and the driven shaft 223, and the axis of the supporting roller 224 is parallel to the axis of the driving shaft 222. The top surface of the supporting roller 224 abuts against the filtering screen 21, so that the supporting roller 224 supports the middle part of the filtering screen 21, avoiding the middle part of the filtering screen 21 from sagging. In Figure 1 In the embodiment shown in the figure, the two ends of the supporting roller 224 in the axial direction are rotatably connected with the two cross beams, respectively. The supporting roller 224 is provided with a plurality of supporting rollers 224, and the plurality of supporting rollers 224 are equidistantly arranged along the length direction of the rack 1, so as to improve the supporting effect on the filtering screen 21.

[0030] In other embodiments, the driving member 22 comprises a motor, a driving sprocket, a driven sprocket and a transmission chain, the driving sprocket and the driven sprocket are rotatably connected at two ends of the length direction of the frame respectively, the transmission chain is wound around the driving sprocket and the driven sprocket, the motor is fixed on the frame and is in transmission connection with the driving sprocket. The filter screen 21 is a rigid screen disc, a plurality of filter screens 21 are provided, and the plurality of filter screens 21 are arranged at intervals along the length direction in which the transmission chain is wound, so that the driving member 22 and the filter screen 21 form a structure similar to a chain plate conveyor, that is, the filter screen 21 is similar to a chain plate of the chain plate conveyor, so that the driving member 22 can drive the filter screen 21 to reciprocate between the feeding end 11 and the discharging end 12.

[0031] Referring to Figure 1 , the feeding mechanism 3 is arranged at the feeding end 11 of the frame 1, and the feeding mechanism 3 is used for inputting the wort mixture to be filtered into one end of the filter screen 21 located at the feeding end 11. Among them, the end of the filter screen 21 close to the feeding end 11 is located below the feeding mechanism 3, so that the wort mixture entering from the feeding mechanism 3 falls on the filter screen 21.

[0032] The feeding mechanism 3 comprises a mashing kettle 31, a malt raw material conveying structure 32 and a water supply structure 33, the mashing kettle 31 is provided with a feeding port 311 and a discharging pipe 312, the feeding port 311 is arranged at the top of the mashing kettle 31, and the discharging pipe 312 is connected at the bottom of the mashing kettle 31. The malt raw material conveying structure 32 is connected with the feeding port 311 of the mashing kettle 31, and the water supply structure 33 is connected with the mashing kettle 31 or the malt raw material conveying structure 32; the end of the discharging pipe 312 away from the feeding port 311 extends to the feeding end 11 and is located above the filter screen 21. In Figure 1 the embodiment shown, the water supply structure 33 is connected with the malt raw material conveying structure 32, the malt raw material is conveyed into the mashing kettle 31 through the malt raw material conveying structure 32, and the hot water of the water supply structure 33 is input into the malt raw material conveying structure 32 to mix with the malt raw material, and the mixed liquid enters into the mashing kettle 31 through the feeding port 311. The starch and other substances in the malt raw material are dissolved in the hot water to form the fermentation liquid, that is, the wort mixture to be filtered. The wort mixture is conveyed to the end of the filter screen 21 close to the feeding end 11 through the discharging pipe 312 of the mashing kettle 31, and the wort in the wort mixture is filtered out by the filter screen 21.

[0033] Among them, the malt raw material conveying structure 32 is preferably a screw conveyor, and the water supply structure 33 is connected to the malt raw material conveying structure 32, so that the malt raw material is mixed with hot water under the stirring of the screw reamer of the malt raw material conveying structure 32 when the malt raw material is conveyed in the malt raw material conveying structure 32, thereby improving the mixing effect. It should be noted that the malt raw material conveying structure 32 can also be other conveying structures, such as a belt conveying structure.

[0034] In Figure 1In the shown embodiment, the mashing kettle 31 is arranged outside the frame 1, and a feed pump 34 is connected in series with a discharge pipe 312 of the mashing kettle 31, and the feed pump 34 pumps the wort mixture in the mashing kettle 31 to the filter screen 21. It should be noted that the mashing kettle 31 can also be arranged at a position higher than the filter screen 21, so that the wort mixture in the mashing kettle 31 automatically flows to the filter screen 21 under its own gravity.

[0035] In an embodiment, a flow meter 35 is connected in series with the discharge pipe 312, and the flow meter 35 is located between the feed pump 34 and the filter screen 21, and the flow meter 35 is used to detect the flow of the wort mixture from the mashing kettle 31 to the filter screen 21. The flow meter 35 is electrically connected with the feed pump 34, and the feed pump 34 controls the flow of the wort mixture into the filter screen 21 according to the electrical signal of the flow meter 35.

[0036] The slag discharge mechanism 4 is arranged at the discharge end 12 of the frame 1, and the slag discharge mechanism 4 is used to receive the waste spent grains remaining after filtration which are delivered by the filter screen 21. The slag discharge mechanism 4 includes a waste spent grains tank 41 and a waste spent grains conveying structure 42, the waste spent grains tank 41 is arranged below the end of the filter screen 21 away from the feed mechanism 3, so that the waste spent grains remaining after filtration fall into the waste spent grains tank 41 under the action of gravity. The waste spent grains conveying structure 42 is connected with the waste spent grains tank 41, and is used to convey the waste spent grains in the waste spent grains tank 41 to the outside of the waste spent grains tank 41, so that the malt mashing and filtering device can continuously work without stopping for slag cleaning, thereby improving the production efficiency and the stability of product quality, and reducing energy consumption.

[0037] In Figure 1 In the shown embodiment, the waste spent grains conveying structure 42 is preferably a screw conveyor. It should be noted that the waste spent grains conveying structure 42 can also be other conveying structures, such as a belt conveying structure.

[0038] In an embodiment, the malt mashing and filtering device further includes a water spraying mechanism 5, the water spraying mechanism 5 includes a first water supply pipe 51 and a first spray head 52, the first spray head 52 is arranged above the filter screen 21, and the water outlet end of the first spray head 52 faces the top surface of the filter screen 21, the first water supply pipe 51 is connected with the first spray head 52, and is connected with an external water supply device, so that the water of the water supply device can be sprayed out on the top surface of the filter screen 21 through the first water supply pipe 51 and the first spray head 52, to wash out the malt sugar components in the wort mixture on the filter screen 21. The water supply device provides hot water for the first spray head 52, and the hot water is sprayed on the wort mixture on the filter screen 21, so that the hot water washes out the malt sugar components in the wort mixture and falls into the wort collecting tank 6 below, thereby making the waste spent grains delivered by the filter screen 21 to the discharge end 12 to be the waste spent grains remaining after filtration.

[0039] In Figure 1In the shown embodiment, the first spray heads 52 are provided in plurality, and the plurality of first spray heads 52 are arranged at intervals along the length direction of the frame 1, so as to improve the spraying effect of the water spraying mechanism 5 on the wort mixture, and thus improve the effect of washing out malt sugar from the wort mixture by hot water.

[0040] The water supply device is capable of supplying hot water with a certain pressure. For example, the water supply device comprises a booster pump which drives the flow of hot water to increase the pressure of the hot water. The water supply device is used to connect a pressure detector in series on the pipeline connected with the first water supply pipe 51, and the booster pump is electrically connected with the pressure detector. The pressure detector is used to detect the water pressure in the first water supply pipe 51, and the booster pump is capable of automatically controlling the water pressure according to the electrical signal of the pressure detector.

[0041] The wort collecting tank 6 comprises a first collecting tank 61 and a second collecting tank 62. The first collecting tank 61 is arranged below the end of the filter screen 21 close to the feeding mechanism 3, so that the first collecting tank 61 collects wort which is just filtered and has a relatively large concentration. The second collecting tank 62 is arranged below the end of the filter screen 21 close to the residue discharging mechanism 4, so that the second collecting tank 62 collects wort which is filtered by the end of the filter screen 21 close to the residue discharging mechanism 4 and has a relatively small concentration compared with the wort collected by the first collecting tank 61. The first collecting tank 61 and the second collecting tank 62 can be fixed on the cross beam. It should be noted that the wort collecting tank 6 can also be provided in only one, and the wort collecting tank 6 collects all the wort filtered by the filter screen 21.

[0042] In an embodiment, the second collecting tank 62 is connected with a discharge pipe 63 which is connected with the mashing kettle 31 or the malt raw material conveying structure 32 of the feeding mechanism 3, so that the wort with a relatively small concentration is used for dissolving the malt raw material, and the use amount of hot water during the operation of the malt saccharification and filtration device is reduced.

[0043] In an embodiment, the second collecting tank 62 is provided with a liquid outlet pipe 64 which is used to discharge the wort with a relatively small concentration which is not required to be conveyed to the mashing kettle 31 through the discharge pipe 63, so that the second collecting tank 62 can continuously collect the wort filtered by the filter screen 21. For example, when the amount of the wort with a relatively small concentration collected by the second collecting tank 62 is more than the set amount of the wort with a relatively small concentration conveyed to the mashing kettle 31 through the discharge pipe 63, the excessive wort with a relatively small concentration can be discharged through the liquid outlet pipe 64.

[0044] Referring to Figure 1 and Figure 4The malt sugar filtering device further comprises a furrowing mechanism 7, which comprises a driving member 71 and a furrowing blade 72. The furrowing blade 72 is arranged above the filter screen 21 and extends in the width direction of the rack 1. The driving member 22 is fixedly connected to the rack 1 and is in transmission connection with the furrowing blade 72. The driving member 71 can drive the furrowing blade 72 to rotate around its own axis to loosen the wort mixture on the filter screen 21. A plurality of furrowing blades 72 are arranged at intervals in the length direction of the rack 1, and the plurality of furrowing blades 72 simultaneously loosen the wort mixture on the filter screen 21, thereby improving the loosening effect.

[0045] Each furrowing blade 72 comprises a blade shaft 721 and a blade 722 arranged on the circumferential outer surface of the blade shaft 721. The blade shaft 721 is in rotational connection with the rack 1 and has the same axial direction as the width direction of the rack 1. The driving member 71 can be a motor or a rotary cylinder and is in transmission connection with the blade shaft 721 of the furrowing blade 72. Thus, the driving member 71 can drive the furrowing blade 72 to rotate, so that the blade 722 of the furrowing blade 72 hits the wort mixture above the filter screen 21 to loosen the wort mixture and improve the washing effect of the wort mixture by the water spraying mechanism 5. The linear speed of the furrowing blade 72 and the movement speed of the filter screen 21 have a speed difference, thereby improving the loosening effect of the wort mixture.

[0046] Preferably, the linear speed of the furrowing blade 72 is greater than the movement speed of the filter screen 21. Moreover, the linear speed direction of the side of the furrowing blade 72 close to the filter screen 21 is the same as the movement of the filter screen 21. When the furrowing blade 72 hits the wort mixture on the filter screen 21, the force applied to the wort mixture by the furrowing blade 72 is the same as the direction in which the filter screen 21 transports the wort mixture. Thus, the furrowing blade 72 can also push the waste grains in the wort mixture to move in the direction of the residue discharging mechanism 4, thereby improving the effect of transporting the wort mixture from the feeding end 11 to the discharging end 12.

[0047] In an embodiment, the plurality of furrowing blades 72 are in transmission connection with the driving member 71, so that one driving member 71 can drive all the furrowing blades 72 to rotate, thereby reducing the number of driving members 71, simplifying the structure and reducing the cost. For example, a synchronous belt 73 is connected between the blade shafts 721 of two adjacent furrowing blades 72, so that when one of the furrowing blades 72 is driven to rotate by the driving member 71, the remaining furrowing blades 72 are also driven to rotate synchronously, thereby realizing that one driving member 71 drives all the furrowing blades 72 to rotate. In other embodiments, the furrowing blades 72 can also be in gear transmission. It should be noted that one driving member 71 can be arranged corresponding to each furrowing blade 72, and the furrowing blade 72 is driven to rotate by the corresponding driving member 71.

[0048] Reference is made to Figure 1The malt filtration device further comprises a height limiting plate 8, which is arranged between the feeding end 11 and the discharging end 12 and close to the feeding mechanism 3. The height limiting plate 8 is arranged above the filter screen 21 and has a distance between the bottom surface of the height limiting plate 8 and the top surface of the filter screen 21 to form a space for the wort mixture to pass through. When the wort mixture on the filter screen 21 passes through the position of the height limiting plate 8, if the height of the wort mixture is higher than the bottom surface of the height limiting plate 8, the part of the wort mixture higher than the bottom surface of the height limiting plate 8 is blocked by the height limiting plate 8, so that the wort mixture is flattened on the filter screen 21, the filtration effect is improved, and the washing effect of the subsequent water spraying mechanism 5 on the wort mixture is improved.

[0049] In an embodiment, the height of the height limiting plate 8 on the rack 1 is adjustable, so that by adjusting the position of the height limiting plate 8, the distance between the bottom surface of the height limiting plate 8 and the top surface of the filter screen 21 is changed, thereby changing the thickness of the wort mixture flattened on the filter screen 21 by the height limiting plate 8. For example, a mounting plate is arranged on the cross beam of the rack 1, the mounting plate is provided with mounting holes, the height limiting plate 8 is provided with an elongated through hole, the length direction of the elongated through hole is arranged vertically, and the height limiting plate 8 is fixed with the mounting plate by screws passing through the elongated through hole and the mounting holes, so that the relative position between the elongated through hole and the screws can be changed, thereby changing the height position of the height limiting plate 8. In other embodiments, a lifting mechanism is arranged on the cross beam of the rack 1, and the height limiting plate 8 is connected to the output end of the lifting mechanism, so that the height limiting plate 8 is lifted under the drive of the lifting mechanism to adjust the height position of the height limiting plate 8. The lifting mechanism can be an electric push rod structure or a worm gear structure. It should be noted that the height limiting plate 8 can also be directly fixed on the rack 1.

[0050] In an embodiment, the malt filtration device further comprises a cleaning mechanism 9, which comprises a second water supply pipe 91 and a second nozzle 92. The water outlet end of the second nozzle 92 faces the bottom surface of the filter screen 21. The second water supply pipe 91 is connected to the second nozzle 92 and connected to an external water supply device, so that the water of the water supply device can pass through the second water supply pipe 91 and the second nozzle 92 and be sprayed to the bottom surface of the filter screen 21 to clean the filter screen 21.

[0051] The filter screen 21 includes two parts during the movement, one part is located above the supporting roller 224 and is used for conveying the wort mixture, and the other part is located below the supporting roller 224 and is driven by the driving member 22 to return to the upper side of the supporting roller 224, so that the filter screen 21 can continuously convey and filter the wort mixture. In the embodiment, the cleaning mechanism 9 is arranged below the filter screen 21, and the water outlet of the second nozzle 92 faces the bottom surface of the filter screen 21. The filter screen 21 is cleaned by spraying water with pressure from the second nozzle 92, so that the filter screen 21 is prevented from being blocked, and the part of the filter screen 21 located above the supporting roller 224 is not affected to convey the wort mixture. In other embodiments, the cleaning mechanism 9 can also be arranged above the filter screen 21, and the cleaning mechanism 9 is started to clean the filter screen 21 after the malt saccharification and filtration device completes the filtration work.

[0052] In Figure 1 In the embodiment shown, the second nozzle 92 is provided in plurality, the plurality of second nozzles 92 are distributed at intervals along the length direction of the rack 1 and are located between the filter screen 21 and the wort collecting groove 6, so that the area of the filter screen 21 washed by the second nozzle 92 is increased, and the cleaning effect of the cleaning mechanism 9 on the filter screen 21 is improved. The filter screen 21 located at one end of the second collecting groove 62 is cleaned by the cleaning mechanism 9 first, and the water used to clean the filter screen 21 is mixed with the wort mixture to be filtered through the liquid discharge pipe 63 and the feeding mechanism 3 and then re-enters the filtration mechanism 2, so that the output wort does not contain waste grains, and the wort collected by the first collecting groove 61 does not contain waste grains.

[0053] The malt saccharification and filtration device further includes a protective cover 10, which is fixed to the rack 1 and is located above the filter screen 21, so that a space for installing the water spraying mechanism 5 and the height limiting plate 8 is formed between the protective cover 10 and the protective cover 10. Through the arrangement of the protective cover 10, the dust outside can be prevented from falling on the wort mixture on the filter screen 21, so that the wort mixture remains clean and hygienic, and the water sprayed by the first nozzle 52 of the water spraying mechanism 5 is prevented from splashing to the outside of the malt saccharification and filtration device.

[0054] The protective cover 10 is provided with an air pressure balance port 101, which is in communication with the outside, so that the water vapor between the protective cover 10 and the filter screen 21 can be discharged in time, and the air pressure balance between the inside and the outside of the protective cover 10 is maintained.

[0055] In an embodiment, the malt filtration device further comprises a baffle (not shown in the figure) which is fixedly connected with the rack 1, is located above the filter screen 21, and has a bottom surface which is in contact with the top surface of the filter screen 21 and can move relatively. The baffle is arranged on both sides of the filter screen 21 along the width direction of the rack 1 and near the feed end 11 of the rack 1, so as to avoid the wort mixture on the filter screen 21 from flowing in a direction other than the conveying direction of the filter screen 21 and causing the residues to fall from the edge of the filter screen 21.

[0056] The working principle of the malt filtration device is as follows: the wort mixture to be filtered is input from the feed mechanism 3 connected to the feed end 11 to one end of the filter screen 21 near the feed end 11, and then the filter screen 21 conveys the wort mixture to be filtered on it to the discharge end 12 under the drive of the driving member 22. When the wort mixture passes the position of the height limiting plate 8, it is blocked by the height limiting plate 8 and is flattened on the filter screen 21. In the conveying process, the wort mixture to be filtered is filtered, and the water spraying mechanism 5 washes the wort mixture, so that the wort in the wort mixture falls into the wort collection tank 6 through the filter holes of the filter screen 21, and the remaining waste residues after filtration are discharged from the residue discharge mechanism 4 connected to the discharge end 12. The feed mechanism 3, the driving member 22 and the residue discharge mechanism 4 can work continuously, that is, the feed mechanism 3 can continuously input the wort mixture to be filtered, and the wort mixture to be filtered is continuously filtered at the filter screen 21, and then the remaining waste residues after filtration are continuously discharged from the residue discharge mechanism 4. Compared with the existing intermittent filtration equipment, the device can continuously produce, is energy-efficient, and can ensure the stability of product quality.

[0057] The malt filtration device further comprises a controller, a temperature sensor, a pressure sensor and a flow sensor. The controller is a programmable logic controller (PLC) or a single-chip microcomputer. The water pipe of the water supply structure 33 is provided with a temperature sensor. The outlet of the first collection tank 61 and the outlet of the second collection tank 62 are each provided with a flow sensor. The second water supply pipe 91 is connected downstream of the pressure detector of the water supply device, that is, the first water supply pipe 51 and the second water supply pipe 91 are both connected downstream of the pressure detector of the water supply device. The temperature sensor, the pressure sensor, the flow sensor, the flow meter 35, the feed pump 34 and the booster pump are all electrically connected with the controller. The temperature sensor, the pressure sensor, the flow sensor and the flow meter 35 respectively collect the operating parameters of the key parts of the device in real time, and automatically adjust the parameters such as the feed rate and the heating power through the preset control algorithm, so as to ensure that the entire production process is stably operated according to the predetermined process curve. At the same time, the controller is equipped with a visual man-machine interface, and the operator can intuitively understand the running state of the device, query historical data, and perform remote operation and fault diagnosis, thereby greatly improving the intelligent management level of the device.

[0058] The malt saccharification filtering device of the present application comprises a feeding mechanism 3, a residue discharging mechanism 4, a filtering mechanism 2 and a wort collecting tank 6. The filtering mechanism 2 comprises a driving member 22 and a filtering screen 21, the filtering screen 21 is used for filtering the wort mixture and extends from the feeding end 11 to the discharging end 12, the driving member 22 drives the filtering screen 21 to move between the feeding end 11 and the discharging end 12, and the wort mixture is transported from the feeding end 11 to the discharging end 12, while the wort mixture is filtered during the transportation from the feeding end 11 to the discharging end 12, the wort filtered by the filtering screen 21 falls into the wort collecting tank 6 below, and the collection of the wort is realized. Wherein, the driving member 22 can continuously drive the filtering screen 21 to move between the feeding end 11 and the discharging end 12, the feeding mechanism 3 can continuously input the wort mixture to be filtered, and the residue discharging mechanism 4 can continuously discharge the waste residues remaining after the filtration, so that the continuous filtration of the wort mixture is realized, and the continuous production is realized, the product quality is stable, and the production efficiency is improved.

[0059] While the application has been described with reference to several exemplary embodiments, it is to be understood that the use of other words or terms such as "preferably," "according to an embodiment," "in an embodiment," "in other embodiments," "in one embodiment," "not according to the prior art," "in some embodiments," "in various embodiments," "there is," "together with" or the like is for description only and does not necessarily refer to all embodiments. It is to be understood that the terms used are illustrative and not restrictive, and that the scope of the application is not limited to any of the described embodiments, but rather encompasses any changes that come within the spirit and scope of the claims or equivalents thereof.

Claims

1. A malt liquefaction filtration apparatus, characterized by, The malt filtration device comprises: a rack, the opposite ends of which in the length direction are respectively an inlet end and an outlet end; a feeding mechanism arranged at the inlet end, the feeding mechanism being used for inputting the wort mixture to be filtered; a filtering mechanism arranged on the rack, the filtering mechanism comprising a driving member and a filtering screen, the filtering screen being used for filtering the wort mixture and extending from the inlet end to the outlet end, the driving member driving the filtering screen to move between the inlet end and the outlet end and conveying the wort mixture from the inlet end to the outlet end; a residue discharging mechanism arranged at the outlet end, the residue discharging mechanism being used for receiving the waste grains remaining after the filtering screen conveys the filtered wort mixture; a wort collecting tank arranged directly below the filtering screen and used for collecting the wort filtered by the filtering screen.

2. The malt filtration device according to claim 1, wherein the driving member comprises a driving motor, a driving shaft and a driven shaft, the driving shaft and the driven shaft are arranged at the two ends of the rack in the length direction, the driving motor is fixedly connected with the rack and is in transmission connection with the driving shaft; the filtering screen is of a flexible structure, the filtering screen is annular and is wound around the driving shaft and the driven shaft, and the driving motor drives the driving shaft to rotate and drives the filtering screen to move.

3. The malt filtration device according to claim 1, wherein the malt filtration device further comprises a water spraying mechanism, the water spraying mechanism comprises a first water supply pipe and a plurality of first nozzles, the plurality of first nozzles are distributed above the filtering screen in the length direction of the rack, the water outlet ends of the first nozzles are directed towards the top surface of the filtering screen, the first water supply pipe is connected with the first nozzles and is connected with an external water supply device, so that the water of the water supply device can be sprayed onto the top surface of the filtering screen through the first water supply pipe and the first nozzles to wash out the maltose in the wort mixture on the filtering screen.

4. The malt filtration device according to claim 1, wherein the malt filtration device further comprises a furrowing mechanism, the furrowing mechanism comprises a power member and a plough blade, the plough blade is arranged above the filtering screen, the axial direction of the plough blade extends along the width direction of the rack, the power member is fixedly connected with the rack and is in transmission connection with the plough blade, and the power member can drive the plough blade to rotate around the axis thereof to loosen the wort mixture; a plurality of plough blades are arranged in the length direction of the rack, and all the plough blades are in transmission connection with the power member.

5. The malt filtration device according to claim 1, wherein the malt filtration device further comprises a height limiting plate, the height limiting plate is arranged between the inlet end and the outlet end and above the filtering screen, and the bottom surface of the height limiting plate is spaced apart from the top surface of the filtering screen to form a space for the wort mixture to pass through.

6. The malt filtration device according to claim 1, wherein The malt filtration device further comprises a cleaning mechanism, which comprises a second water supply pipe and a plurality of second spray heads, the second spray heads are arranged between the filter screen and the wort collecting tank along the length direction of the rack, and the water outlet of the second spray heads faces the bottom surface of the filter screen, the second water supply pipe is connected with the second spray heads, and an external water supply device is connected with the second water supply pipe, so that the water in the water supply device can be sprayed to the bottom surface of the filter screen through the second water supply pipe and the second spray heads.

7. The malt filtration device according to claim 1, wherein, the wort collecting tank comprises a first collecting tank and a second collecting tank, the first collecting tank is arranged below the end of the filter screen close to the feeding mechanism, and the second collecting tank is arranged below the end of the filter screen close to the residue discharging mechanism; the second collecting tank is connected with a liquid discharging pipe, and the liquid discharging pipe is connected with the feeding mechanism.

8. The malt filtration device according to claim 1, wherein, the feeding mechanism comprises a mashing kettle, a malt raw material conveying structure and a water supply structure, the mashing kettle is provided with a feeding port and a discharging pipe, the malt raw material conveying structure is connected with the feeding port of the mashing kettle, and the water supply structure is connected with the mashing kettle or the malt raw material conveying structure; the discharging pipe extends to above the end of the filter screen away from the residue discharging mechanism.

9. The malt filtration device according to claim 8, wherein, a feeding pump is connected in series with the discharging pipe, and the feeding pump is used for pumping the wort mixture in the mashing kettle to the filter screen; a flow meter is connected in series with the discharging pipe, the flow meter is located between the feeding pump and the filter screen, and the flow meter is electrically connected with the feeding pump.

10. The malt filtration device according to claim 1, wherein, the residue discharging mechanism comprises a waste residue tank and a waste residue conveying structure, the waste residue tank is arranged below the end of the filter screen away from the feeding mechanism, and the waste residue conveying structure is connected with the waste residue tank, so as to convey the waste residue in the waste residue tank to the outside of the waste residue tank.

11. The malt filtration device according to claim 1, wherein, the malt filtration device further comprises a protective cover, the protective cover is fixed on the rack and located above the filter screen; the protective cover is provided with an air pressure balance port which is in communication with the outside.

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